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Home Court filings In re: MCP No. 165, Occupational Safety and Health Administration, Interim Final Rule: COVID-19 Vaccination and Testing; Emergency Temporary Standard Petitioners' Motion for Stay — In re MCP No. 165 (OSHA ETS)

Court filing

Petitioners' Motion for Stay — In re MCP No. 165 (OSHA ETS)

Record facts

CourtU.S. Court of Appeals for the Sixth Circuit
Filed2021-11-04

Summary

A petitioners' motion for an administrative stay and a stay pending judicial review of the Occupational Safety and Health Administration's COVID-19 vaccination and testing emergency temporary standard, dated November 4, 2021, in In re MCP No. 165. Job Creators Network, the Independent Bakers Association, Lawrence Transportation Company, Guy Chemical Company LLC, The Rabine Group of Companies and Pan-O-Gold Baking Company argue that the standard violates the major-questions and nondelegation doctrines and that they face irreparable injury. The motion states the standard covers 84 million American workers, would require 32 million of them to be vaccinated or tested weekly, and applies to companies with 100 or more employees. It invokes 29 U.S.C. § 655(f) and cites 29 U.S.C. § 655(c), and attaches affidavits from the petitioning companies as exhibits.

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Full text

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SUMMARY OF THE CASE 
Petitioners represent a collection of small businesses and organizations that 
challenge the Department of Labor’s Occupational Safety and Health 
Administration’s issuance of an emergency temporary standard (“ETS”), without 
notice and comment, requiring that every company with 100 or more employees 
either forcibly vaccinate its employees, forcibly test them every week, or fire them—
subject to steep fines for violations.  
Petitioners seek an administrative stay and a stay of this vaccine mandate 
pending merits review. Only nine ETSs were issued before 2021, and of the six that 
were challenged, only one fully survived—demonstrating the incredible burden 
OSHA faces. Petitioners are likely to succeed on the merits of their claims because 
the mandate violates the major-questions doctrine and nondelegation doctrine. 
Petitioners also demonstrate irreparable harm because they will permanently lose 
clients and reputation as a result of losing workers who immediately quit and join 
smaller companies rather than be vaccinated or tested weekly. The equities and 
public interest also favor Petitioners, especially because they provide critical food 
production, delivery, and supply chain services for the country. 
The Court should grant an administrative stay and a stay pending judicial 
review. If the Court desires oral argument, Petitioners request 15 minutes of time. 

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CORPORATE DISCLOSURE STATEMENT 
 
Pursuant to the Federal Rule of Appellate Procedure 26.1 and Eighth Circuit 
Rule 26.1A, Petitioners Job Creators Network, Independent Bakers Association, 
Lawrence Transportation Company, Guy Chemical Company LLC, The Rabine 
Group of Companies, and Pan-O-Gold Baking Company state that they do not have 
a parent corporation, and no publicly held corporation owns 10 percent or more of 
their stock.  
 
 

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TABLE OF CONTENTS 
SUMMARY OF THE CASE .................................................................................... ii 
CORPORATE DISCLOSURE STATEMENT ....................................................... iii 
TABLE OF AUTHORITIES ..................................................................................... v 
INTRODUCTION ..................................................................................................... 1 
STATEMENT OF JURISDICTION.......................................................................... 3 
STATEMENT OF THE ISSUES............................................................................... 3 
STATEMENT OF THE CASE .................................................................................. 4 
I. Covid And The Mandate ................................................................................. 4 
II. Petitioners ........................................................................................................ 5 
SUMMARY OF THE ARGUMENT ........................................................................ 9 
ARGUMENT ........................................................................................................... 10 
STANDARD OF REVIEW ..................................................................................... 10 
I. Petitioners Are Likely To Succeed On The Merits ....................................... 10 
A. Prior Emergency Temporary Standards .............................................. 10 
B. OSHA Lacked Authority To Issue The Mandate ................................ 11 
1. The Mandate Violates The Major-Questions Doctrine .................. 12 
2. The Mandate Violates The Nondelegation Doctrine ..................... 14 
C. Even If OSHA Has Authority, An ETS Is Inappropriate .................... 16 
II. Petitioners Will Suffer Irreparable Injury In The Absence Of A Stay ........ 19 
III. The Equities And Public Interest Strongly Favor A Stay ............................ 21 
IV. The Court Should Stay The Mandate Nationwide ....................................... 24 
CONCLUSION ........................................................................................................ 24 
CERTIFICATE OF COMPLIANCE ....................................................................... 26 
CERTIFICATE OF SERVICE ................................................................................ 27 
 
 

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TABLE OF AUTHORITIES 
CASES 
Ala. Ass’n of Realtors v. Dep’t of Health & Hum. Servs., 141 S. Ct. 2485 
(2021). ....................................................................................... 4, 14, 19, 20, 22 
Am. Petroleum Institute v. OSHA, 581 F.2d 493 (5th Cir. 1978) ........................ 11 
Asbestos Info. Ass’n/N. Am. v. OSHA, 727 F.2d 415 (5th Cir. 
1984) ...................................................................... 4, 10, 11, 13, 15, 16, 18, 19 
Benisek v. Lamone, 138 S. Ct. 1942 (2018)......................................................... 22 
Brady v. NFL, 638 F.3d 1004 (8th Cir. 2011). .................................................... 10 
Califano v. Yamasaki, 442 U.S. 682 (1979). ....................................................... 24 
Dry Color Mfrs Ass’n, Inc. v. Dep’t of Labor, 486 F.2d 98 (3d Cir. 1973). . 11, 18 
Edison Elec. Institute v. OSHA, 849 F.2d 611 (D.C. Cir. 1988). ........................ 11 
Fla. Peach Growers Ass’n v. U.S. Dep’t of Labor, 489 F.2d 120 (5th Cir. 
1974) ......................................................................................................... 11, 16 
Gen. Motors Corp. v. Harry Brown’s, LLC, 563 F.3d 312 (8th Cir. 2009). ....... 19 
Gundy v. United States, 139 S. Ct. 2116 (2019). ....................................... 4, 14, 15 
In re Am. Fed’n of Lab. & Cong. of Indus. Organizations, No. 20-1158, 
2020 WL 3125324 (D.C. Cir. June 11, 2020). ............................................... 17 
Industrial Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S. 607 
(1980) .......................................................................................... 2, 4, 11, 16, 17 
Maryland v. King, 569 U.S. 435 (2013) .............................................................. 21 
Nken v. Holder, 556 U.S. 418 (2009). ....................................................... 4, 10, 21 
Precision Instrument Mfg. Co. v. Auto. Maint. Mach. Co., 324 U.S. 806 
(1945) .............................................................................................................. 23 
Taylor Diving & Salvage Co. v. U.S. Dep’t of Lab., 537 F.2d 819 (5th Cir. 
1976) ......................................................................................................... 10, 11 
Thunder Basin Coal Co. v. Reich, 510 U.S. 200 (1994) ..................................... 19 
Util. Air Regul. Grp. v. EPA, 573 U.S. 302 (2014). .................................... 2, 3, 12 
Warth v. Seldin, 422 U.S. 490 (1975) .................................................................. 24 
Whitman v. Am. Trucking Ass’ns, 531 U.S. 457 (2001). ..................................... 15 

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STATUTES 
29 U.S.C. § 655(c). ...................................................................................... 3, 5, 10 
29 U.S.C. § 655(f). ................................................................................................. 3 
OTHER AUTHORITIES 
Spencer Kimball, Business Groups Ask White House to Delay Biden 
Covid Vaccine Mandate Until After the Holidays, CNBC, 
https://www.cnbc.com/2021/10/25/businesses-ask-white-house-to-
delay-biden-covid-vaccine-mandate-until-after-holidays.html ...................... 23 
Ben Penn, Top DOL Lawyer Courts Business Support for Biden’s Vaccine 
Order, Bloomberg Law, Sept. 10, 2021, 
https://news.bloomberglaw.com/daily-labor-report/top-dol-lawyer-
courts-business-support-for-bidens-vaccine-order. ........................................ 22 
COVID-19 Vaccination and Testing Emergency Temporary Standard ................ 5 
COVID-19 Restrictions, USA Today, 
https://www.usatoday.com/storytelling/coronavirus-reopening-
america-map/ .............................................................................................. 4, 17 
OSHA, FAQ, https://www.osha.gov/coronavirus/faqs#vaccine. ........................ 18 
Occupational Exposure to COVID-19; Emergency Temporary Standard, 
86 FR 32376-01 (June 21, 2021). ................................................................... 17 
White House, Remarks by President Biden on Fighting the COVID-19 
Pandemic, Sept. 9, 2021, https://www.whitehouse.gov/briefing-
room/speeches-remarks/2021/09/09/remarks-by-president-biden-on-
fighting-the-covid-19-pandemic-3/. ................................................................. 5   
 
 
 
 

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INTRODUCTION 
 
Petitioners—Job Creators Network, the Independent Bakers Association, a 
coalition of small businesses, and an individual employee—ask this Court to issue 
an administrative stay and a stay pending judicial review of the emergency 
temporary standard (“Mandate”) issued without notice-and-comment by the 
Department of Labor’s Occupational Safety & Health Administration (“OSHA”). 
Petitioners satisfy the requirements for a stay, including a likelihood of success on 
the merits, irreparable injury, and a favorable balancing of the equities and public 
interest. 
The Mandate covers 84 million American workers and will require 32 million 
of them to be vaccinated against COVID or undergo weekly tests—or be fired. 
Mandate (Ex. H) at 229. The Mandate applies to every company with 100 or more 
employees, across the country, with only the most minimal of exceptions. Violations 
can result in five- and six-figure fines. 
Many of these businesses have encouraged their employees to get vaccinated. 
But that commitment to private persuasion does not excuse the federal government 
press-ganging companies into becoming vaccine police.  
Before 2021, OSHA had issued only nine emergency temporary standards 
(“ETSs”), and of the six that were challenged in court, only one fully survived. This 

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low batting average demonstrates the rigorous burden that OSHA must satisfy—a 
burden the Mandate fails.  
Petitioners are likely to prevail on the merits for several reasons. First, the 
Mandate violates the major-questions doctrine, which states that Congress must 
“speak clearly if it wishes to assign to an agency decisions of vast economic and 
political significance.” Util. Air Regul. Grp. v. EPA, 573 U.S. 302, 324 (2014). But 
there is not the slightest hint that Congress gave OSHA power to issue emergency 
orders covering 84 million Americans and requiring compelled vaccination or 
testing of 32 million of them. 
The Supreme Court has warned OSHA about issuing such edicts: “In the 
absence of a clear mandate in the [OSH] Act, it is unreasonable to assume that 
Congress intended to give the Secretary the unprecedented power over American 
industry that would result from the Government’s view.” Industrial Union Dep’t, 
AFL-CIO v. Am. Petroleum Inst., 448 U.S. 607, 645, 651 (1980) (plurality). 
Second, the Mandate violates the nondelegation doctrine, which prohibits 
Congress from transferring legislative powers carte blanche to an executive agency.  
Third, even if OSHA did have the power to issue the Mandate, there is no 
unforeseen emergency necessitating a one-size-fits-all ETS, especially when the 
Mandate will severely disrupt essential services and—in a cruel twist—result in 
companies laying off vaccinated workers to stay solvent. 

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Petitioners have also demonstrated irreparable injury and favorable equities. 
They are small businesses deemed “essential” during lockdowns and have struggled 
to survive the last two years. As the attached detailed affidavits make clear, these 
companies face the distinct prospect that a substantial number of employees—a 
majority in some cases—will walk off the job rather than comply with the Mandate. 
Critically, they have every incentive to do this immediately rather than wait for the 
Mandate’s deadlines to kick in. This will trigger a cascade of irreparable injuries as 
companies are unable to satisfy work orders, leading to lost clients, damaged 
reputation, and the threat of shutting their doors.  
The public will suffer tremendously, too. Petitioners provide critical supply-
chain services like food production, grocery store food deliveries, and emergency 
repairs for buildings and roads. By forcing those companies to operate without a 
sizable part of their workforce, the Mandate will cause immediate shortages at 
grocery stores, shortages of household and commercial goods, and languishing 
critical infrastructure failures.  
STATEMENT OF JURISDICTION 
 
This Court has jurisdiction pursuant to 29 U.S.C. § 655(f).  
STATEMENT OF THE ISSUES 
1. 
Whether the Mandate violates the major-questions doctrine. 
• 
29 U.S.C. § 655(c). 
• 
Util. Air Regul. Grp. v. E.P.A., 573 U.S. 302 (2014). 

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• 
Industrial Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S. 607 
(1980). 
2. 
Whether the Mandate violates the nondelegation doctrine. 
• 
Gundy v. United States, 139 S. Ct. 2116 (2019). 
• 
API, 448 U.S. 607. 
3. 
Whether OSHA demonstrated a grave harm and necessity to issue the 
Mandate. 
• 
Asbestos Info. Ass’n/N. Am. v. OSHA, 727 F.2d 415 (5th Cir. 1984). 
4. 
Whether Petitioners have demonstrated irreparable injury. 
• 
Ala. Ass’n of Realtors v. HHS, 141 S. Ct. 2485 (2021). 
5. 
Whether the balance of equities and public interest favor a stay. 
• 
Nken v. Holder, 556 U.S. 418 (2009). 
STATEMENT OF THE CASE 
I. 
COVID And The Mandate 
COVID has presented enormous challenges to all Americans. But after 
tremendous sacrifices, the nation has turned the page. In nearly every state, COVID 
restrictions 
are 
easing. 
COVID-19 
Restrictions, 
USA 
Today, 
https://www.usatoday.com/storytelling/coronavirus-reopening-america-map/ (last 
visited Nov. 4, 2021). 

5 
 
Despite this, on September 9, 2021, President Biden decided that there is such 
an urgent, new emergency in the form of COVID transmission in the workplace that 
he ordered OSHA to issue an ETS mandating that nearly every company in the 
country with 100 or more employees either forcibly vaccinate its employees, forcibly 
test them every week, or fire them. White House, Remarks by President Biden on 
Fighting 
the 
COVID-19 
Pandemic, 
Sept. 
9, 
2021, 
https://www.whitehouse.gov/briefing-room/speeches-
remarks/2021/09/09/remarks-by-president-biden-on-fighting-the-covid-19-
pandemic-3/.  This mandate would “affect about 100 million Americans,” or “two 
thirds of all workers.” Id. 
 
After a substantial delay, OSHA finally issued the Mandate in accordance 
with President Biden’s command. See Ex. H. It will become binding upon 
publication in the Federal Register, which will happen November 5, 2021. 29 U.S.C. 
§ 655(c). 
II. 
Petitioners 
Job Creators Network is a nonpartisan membership organization whose 
mission is to educate employees of Main Street America and protect the 85 million 
people who depend on the success of small businesses. Affidavit of Alfredo Ortiz 
(Ex. A) ¶¶2-5. Its members will suffer tremendous harm from the Mandate. See id., 
¶¶6-11. 

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Independent Bakers Association is national trade association of over 200 
family-owned wholesale bakeries and allied industry trades. Affidavit of Nicholas 
Pyle (Ex. B) ¶¶2-4. IBA’s affidavit explains in detail how its members were deemed 
“essential” during lockdowns because of their critical role in feeding the country—
but these members are facing dramatic worker shortages already, and the Mandate 
is expected to cause 20-30% of employees to leave, which will severely “disrupt 
retail trade patterns, exacerbate fast food supply chain issues and increase the food 
insecurity for the nation's most nutritionally at risk.” Id., ¶¶5-10. IBA has standing 
through its members, one of which has submitted an affidavit explaining how the 
Mandate will drastically worsen an already-critical worker shortage for every link in 
its production and supply chain, leading to severe reputational and public harms, 
including the communities supported by the company’s wages. Affidavit of Mike 
McKee (Ex. C), ¶¶10-13. 
Lawrence Transportation Company is a refrigerated truckload carrier in 
Rochester, Minnesota, with over 100 employees and thus subject to the Mandate. 
Affidavit of Eric Lawrence (Ex. D), ¶¶2-3. The company was deemed “essential” 
during the COVID lockdowns, id., ¶9, and has encouraged its employees to get 
vaccinated, id., ¶2. The Mandate will cause irreparable harm because Lawrence 
Transportation is already facing a severe truck driver shortage. Id., ¶4. These drivers 
and the mechanics who repair the trucks require specialized licenses and training. 

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Id. Because of this, Lawrence Transportation “simply cannot hire more employees 
and have them start quickly.” Id.  
Approximately 10-15% of Lawrence Transportation’s workforce “would 
rather walk off the job than be forced to get a vaccine or undergo weekly testing,” 
and there is an incentive to do this sooner rather than later. Id., ¶5. These workers 
“cannot be replaced at any point in the near future” and would have a “devastating” 
effect on the company. Id., ¶¶6-7. Deliveries will be “delayed or canceled, resulting 
in severe financial and reputational damages for the Company, as well as a likely 
ripple effect of losing business to smaller trucking companies.” Id., ¶7.  
The Company “would likely have to save costs by laying off non-drivers like 
office employees,” who “are almost all vaccinated.” Id. This means “the mandate 
would result in vaccinated people losing their jobs.” Id. (emphasis added). The 
Mandate also imposes irreparable logistical harms, as drivers are on the road “for 7 
to 10 days at a time, making it nearly impossible to get tested weekly.” Id., ¶10. The 
Mandate is designed to “force[] those drivers either to get vaccinated, or quit.” Id. 
The general public would also suffer because Lawrence Transportation 
delivers groceries that must be refrigerated. Id., ¶9. “[T]hose deliveries will not be 
made, and people will not be able to get food deliveries to their grocery stores.” Id.  
Guy Chemical Company LLC is a manufacturer in Somerset County, 
Pennsylvania, with over 160 employees, and thus is subject to the Mandate. 

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Affidavit of Guy Berkebile (Ex. E), ¶¶1-4. Guy Chemical was deemed “essential” 
during the pandemic lockdowns, due to its work producing materials for household 
and construction products. Id., ¶9. Guy Chemical is already facing an intense worker 
shortage, and its employees typically must have extensive training (required, 
ironically, by OSHA) and specialized knowledge that cannot be learned quickly, 
and—critically—a majority of employees at the Company would refuse to comply 
with the Mandate. Id., ¶¶6-7. If even 25% of Guy Chemical’s workers refuse to show 
up, the Company would be unable to complete orders, resulting not only in lost 
business but also reputational damages. Id., ¶8. The Mandate also imposes 
irreparable harm in the form of logistics: the onerous testing requirements will have 
the effect of forcing companies to abandon testing and mandate the vaccine—
“[t]here is no practical choice.” Id., ¶10.  
The Rabine Group of Companies have over 300 employees, including over 
100 just at Pipe View L.L.C. These companies perform critical infrastructure repairs 
for damaged roofs, roads, HVAC systems, and commercial doors and docks, as well 
as snow removal—and, like the other Petitioners, are already suffering from severe 
worker shortages even without the estimated 20% of workers who will leave because 
of the Mandate. Affidavit of Gary Rabine (Ex. F) ¶¶2-6. These projects must be done 
immediately or customers may face legal liability and physical dangers, but the 
Mandate will prevent the Group’s companies from meeting timeliness obligations, 

9 
 
causing tremendous public harm, as well as critical business and reputational 
damages. Id., ¶¶7-11. 
As Job Creators Network CEO Alfredo Ortiz states, these companies 
represent only “the tip of the iceberg.” Ortiz Affidavit (Ex. A) ¶11. Thousands of 
other companies are in the same situation.  
Terri Mitchell is the Administrations Manager at Guy Chemical and is 
determined not to receive the vaccine because she previously had the coronavirus 
and has the confirmed presence of SARS-COV-2 antibodies. Affidavit of Terri 
Mitchell (Ex. G) ¶¶2, 4-5. She also refuses to subject herself to the physical harms 
and indignity of involuntary weekly testing. Id., ¶5. She would rather lose her 
position than comply with the Mandate, and—as a result of her role at the 
company—knows that “a majority of employees at Guy Chemical feel the same 
way.” Id., ¶6. 
SUMMARY OF THE ARGUMENT 
Petitioners satisfy the requirements for issuing an administrative stay and a 
stay pending judicial review. The Mandate is illegal for numerous reasons, 
Petitioners demonstrate irreparable harm in the form of a variety of injuries, and 
there are substantial public injuries.  
 
 

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ARGUMENT 
STANDARD OF REVIEW 
The factors for a stay pending review are “(1) whether the stay applicant has 
made a strong showing that he is likely to succeed on the merits; (2) whether the 
applicant will be irreparably injured absent a stay; (3) whether issuance of the stay 
will substantially injure the other parties interested in the proceeding; and (4) where 
the public interest lies.” Nken v. Holder, 556 U.S. 418, 426 (2009); see Taylor Diving 
& Salvage Co. v. U.S. Dep’t of Lab., 537 F.2d 819, 821 n.8 (5th Cir. 1976); Asbestos 
Info. Ass’n/N. Am. v. OSHA, 727 F.2d 415, 418 & n.4 (5th Cir. 1984). 
“The purpose of [an] administrative stay is to give the court sufficient 
opportunity to consider the merits of the motion for a stay pending appeal.” Brady 
v. NFL, 638 F.3d 1004, 1005 (8th Cir. 2011). 
I. 
Petitioners Are Likely To Succeed On The Merits. 
A. 
Prior Emergency Temporary Standards 
The Occupational and Health Safety Act of 1970 (“OSH Act”) provides the 
Secretary of Labor the incredible power to issue ETSs that are immediately effective 
upon publication in the Federal Register, without having to comply with any of the 
requirements of the Administrative Procedure Act. 29 U.S.C. § 655(c). The 
Secretary must determine, inter alia, that the covered “employees are exposed to 
grave danger from exposure to substances or agents determined to be toxic or 
physically harmful or from new hazards.” § 655(c). The Secretary has delegated this 

11 
 
authority to the Assistant Secretary for Occupational Safety and Health. Edison Elec. 
Institute v. OSHA, 849 F.2d 611, 614 (D.C. Cir. 1988). 
This is an “extraordinary power,” Fla. Peach Growers Ass’n v. U.S. Dep’t of 
Labor, 489 F.2d 120, 129 (5th Cir. 1974), and represents “OSHA’s most dramatic 
weapon in its enforcement arsenal.” Asbestos, 727 F.2d at 426. This weapon must 
be “delicately exercised, and only in those emergency situations which require it.” 
Peach Growers, 489 F.2d at 129-30. 
Before 2021, OSHA had issued less than 10 ETSs. Of the six that were 
challenged, five (83.3%) were fully or partially vacated or stayed, Asbestos, 727 F.2d 
at 426; Am. Petroleum Institute v. OSHA, 581 F.2d 493, 503 (5th Cir. 1978), aff’d, 
448 U.S. 607 (1980); Taylor, 537 F.2d at 821; Peach Growers, 489 F.2d at 129; Dry 
Color Mfrs. Ass’n, Inc. v. Dep’t of Labor, 486 F.2d 98 (3d Cir. 1973). 
This low batting average—even when defending limited ETSs—demonstrates 
the extraordinarily high burden OSHA must satisfy. As demonstrated next, the 
Mandate does not survive this scrutiny. 
B. 
OSHA Lacked Authority To Issue The Mandate. 
Petitioners are likely to succeed on the merits of their challenge to the 
Mandate for several reasons. 
 
 

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1. 
The Mandate Violates The Major-Questions Doctrine. 
The Mandate presents an unprecedented assertion of power by OSHA, 
regulating far more than any prior ETS during the 50 years of OSHA’s existence: 84 
million Americans (32 million currently unvaccinated), in every industry, 
representing almost 2/3 of all workers across the entire country. Its dictates are also 
unprecedented: OSHA is press-ganging private companies into being vaccination 
police who forcibly vaccinate or test their employees—or fire them. For the first 
time in history, OSHA seeks to regulate the citizenry itself. 
Under the major-questions doctrine, “[w]hen an agency claims to discover in 
a long-extant statute an unheralded power to regulate a significant portion of the 
American economy, we typically greet its announcement with a measure of 
skepticism.” Util. Air Regul. Grp. v. E.P.A., 573 U.S. 302, 324 (2014). “We expect 
Congress to speak clearly if it wishes to assign to an agency decisions of vast 
economic and political significance.” Id.  
The Mandate fails this doctrine because there is no “clear statement” in 
§ 655(c) giving OSHA such sweeping powers over the nation’s economy, nor to 
mandate vaccination or intrusive weekly testing for 32 million people, nor to expand 
its purview beyond the workplace. 
Only once before has OSHA attempted anything close to the Mandate—and 
the Supreme Court rejected it and forewarned OSHA from trying again. In the 

13 
 
famous “benzene case,” OSHA had issued a permanent standard pursuant to § 655, 
governing low levels of benzene, under such a broad theory of workplace harm that 
OSHA could effectively regulate substantial portions of the nation’s industry. 
Industrial Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S. 607, 623 (1980) 
(“API”). The Supreme Court rejected OSHA’s claimed power: “In the absence of a 
clear mandate in the [OSH] Act, it is unreasonable to assume that Congress intended 
to give the Secretary the unprecedented power over American industry that would 
result from the Government’s view” of § 655.” Id. at 645 (plurality).  The 
government’s argument “would in turn justify pervasive regulation limited only by 
the constraint of feasibility.” Id. The Court also criticized OSHA for “apply[ing] the 
same limit to all [industries], largely as a matter of administrative convenience.” Id. 
at 650. 
Significantly, the Court made these statements in the context of a permanent 
standard while noting that OSHA’s ETS authority is even more “narrowly 
circumscribed.” Id. at 651. The Supreme Court warned OSHA against abusing ETSs: 
“Congress repeatedly expressed its concern about allowing the Secretary to have too 
much power over American industry,” and thus Congress “narrowly circumscribed 
the Secretary’s power to issue temporary emergency standards.” Id. (emphasis 
added). But the Mandate thumbs its nose at this precedent.  

14 
 
Nor can OSHA claim that COVID provides cause to ignore API. The Supreme 
Court recently relied on the major-questions doctrine in holding that the CDC’s 
eviction moratorium was illegal. Ala. Ass’n of Realtors v. HHS, 141 S. Ct. 2485, 
2489 (2021). The moratorium applied to “[a]t least 80% of the country, including 
between 6 and 17 million tenants at risk of eviction.” Id. Those figures pale in 
comparison to the Mandate, which applies to 100% of the country’s geographic 
scope and over 84 million individuals (forcing vaccination or testing on 32 million 
of them). 
Because there is no clear Congressional authorization, the Mandate fails the 
major-questions doctrine and violates API. 
2. 
The Mandate Violates The Nondelegation Doctrine. 
If OSHA truly does have such broad statutory authority to issue the Mandate, 
then § 655 violates the nondelegation doctrine. “[B]y directing that legislating be 
done only by elected representatives in a public process, the Constitution sought to 
ensure that the lines of accountability would be clear: The sovereign people would 
know, without ambiguity, whom to hold accountable for the laws they would have 
to follow.” Gundy v. United States, 139 S. Ct. 2116, 2134 (2019) (Gorsuch, J., 
dissenting, joined by Roberts, C.J., and Thomas, J.). Thus, Congress may not 
“delegate ... powers which are strictly and exclusively legislative.” Wayman v. 

15 
 
Southard, 10 Wheat. 1, 42-43 (1825). This requirement—known as the 
nondelegation doctrine—is a central component of separation of powers.  
The original understanding of the Constitution prohibited any transfer of 
Congress’s vested legislative powers to any other entity. Gundy, 139 S. Ct. at 2135-
37 (Gorsuch, J., dissenting). Congress must “make[] the policy decisions when 
regulating private conduct.” Id. OSHA’s interpretation of § 655(c) violates this 
original understanding. Under OSHA’s view, “what constitutes a risk worthy of 
Agency action is a policy consideration”—an “essentially legislative task.” 
Asbestos, 727 F.2d at 421, 425; Mandate at 15 (“determinations are ‘essentially 
legislative’”). But policymaking is the role of Congress, and it “would frustrate ‘the 
system of government ordained by the Constitution’ if Congress could merely 
announce vague aspirations and then assign others the responsibility of adopting 
legislation to realize its goals.” Gundy, 139 S. Ct. at 2133 (Gorsuch, J., dissenting). 
Indeed, OSHA’s interpretation of § 655 would run afoul even of the more-
lenient modern interpretations of the nondelegation doctrine. Gundy, 139 S. Ct. at 
2139 (Gorsuch, J., dissenting). Under OSHA’s view, “the degree of agency 
discretion” and “the scope of the power congressionally conferred” are practically 
limitless. Whitman v. Am. Trucking Ass’ns, 531 U.S. 457, 475 (2001).  
OSHA cannot claim surprise, as API held that if OSHA were correct that 
§ 655 permits regulation of the national economy, then “the statute would make such 

16 
 
a sweeping delegation of legislative power that it might be unconstitutional under 
the Court’s reasoning in” its nondelegation cases. 448 U.S. at 646 (plurality). The 
Court chose to apply a constitutional-avoidance canon to reject a broad interpretation 
of OSHA’s power. Id.  
The Court here should follow the same path, but if the Court nonetheless 
adopts OSHA’s view of § 655, it violates the nondelegation doctrine.  
C. 
Even If OSHA Has Authority, An ETS Is Inappropriate. 
 
OSHA has also failed to satisfy the statutory requirements for imposing an 
ETS. The Court must “take a ‘harder look’ at OSHA’s action” because it was not 
subject to the APA. Asbestos, 727 F.2d at 421. 
No Necessity. OSHA can invoke its extraordinary ETS powers only upon a 
finding that an urgent emergency has arisen such that the agency simply cannot wait 
for the normal notice-and-comment process to occur. 29 U.S.C. § 655(c). That is, 
OSHA must “prove[] that the ETS, OSHA’s most dramatic weapon in its 
enforcement arsenal, is ‘necessary’ to achieve the projected benefits.” Asbestos, 727 
F.2d at 426 (emphasis added).  
“[T]he Agency’s failure to act may be evidence that a situation is not a true 
emergency.” Asbestos, 727 F.2d at 423; see Peach Growers, 489 F.2d at 131 (the 
alleged grave concern “has been going on during the last several years thus failing 
to qualify for emergency measures”). But it is common knowledge that the COVID 

17 
 
pandemic has been ongoing since early 2020, and vaccines have been widely 
available for almost all of 2021. OSHA provides no persuasive justification for why 
there is suddenly such an emergency now—in November 2021—when nearly every 
single state is easing its COVID restrictions, and so many Americans have already 
gotten 
vaccinated. 
COVID-19 
Restrictions, 
USA 
Today, 
https://www.usatoday.com/storytelling/coronavirus-reopening-america-map/ (last 
visited Nov. 4, 2021). 
Notably, OSHA refused to issue an ETS in 2020 because “employers are 
maintaining hazard-free work environments.” In re Am. Fed’n of Lab. & Cong. of 
Indus. Organizations, No. 20-1158, 2020 WL 3125324, at *1 (D.C. Cir. June 11, 
2020). That was during the height of the pandemic and is especially telling because 
OSHA claims it is mandated to issue an ETS when conditions warrant. Occupational 
Exposure to COVID-19; Emergency Temporary Standard, 86 FR 32376-01, 32380 
(June 21, 2021) (claiming § 655(c) “is not discretionary”). 
The Mandate is not “necessary” for another reason: OSHA cannot 
demonstrate that a one-size-fits-all rule is needed to achieve the supposed benefits. 
In API, the Court criticized OSHA for “decid[ing] to apply the same limit to all 
[industries], largely as a matter of administrative convenience.” API, 448 U.S. at 650 
(plurality). “[I]t is expected that even an emergency temporary standard not overlook 
those obvious distinctions among … uses and plant practices that make certain 

18 
 
regulations that are appropriate in one category of cases entirely unnecessary in 
another.” Dry Color, 486 F.2d at 105. But, again, the Mandate flunks these basic 
requirements by imposing the same standards on nearly the entire country, with only 
minimal exceptions.  
Further, “an ETS must, on balance, produce a benefit the costs of which are 
not unreasonable. The protection afforded to workers should outweigh the economic 
consequences to the regulated industry,” Asbestos, 727 F.2d at 423-24, “without 
eliminating the [relevant] enterprise and the associated jobs,” Peach Growers, 489 
F.2d at 130. But the Mandate will have precisely that effect and, ironically, will 
encourage employees to switch to employers who are not covered by the Mandate—
causing severe economic disruption in the meantime. Pyle Affidavit (Ex. B), ¶8; 
Lawrence Affidavit (Ex. D) ¶5; Berkebile Affidavit (Ex. E) ¶¶7-8. As one Petitioner 
notes, the Mandate will actually force him to layoff vaccinated workers to save costs. 
Lawrence Affidavit (Ex. D) ¶7. 
Moreover, side effects from vaccines are a critical cost of the Mandate—but 
OSHA has deliberately blinded itself to any calculation of these costs by saying it 
“will not enforce 29 CFR 1904’s recording requirements to require any employers 
to record worker side effects from COVID-19 vaccination.” OSHA, FAQ, 
https://www.osha.gov/coronavirus/faqs#vaccine. 

19 
 
No Grave Danger Demonstrated From Workplace Transmission. OSHA 
must also demonstrate that the Mandate addresses a “grave” danger. 29 U.S.C. 
§ 655(c). The question is not whether COVID generally presents a grave danger, but 
whether the lack of a vaccine mandate and weekly testing for the next few months 
presents a grave danger to the workplace for the entire nation. Asbestos, 727 F.2d at 
427. But as demonstrated above, OSHA failed to explain persuasively why all 
companies with 100 or more employees, across dozens of industries and across the 
entire country, face a grave danger from risk of COVID transmission at the 
workplace, especially at this moment. 
II. 
Petitioners Will Suffer Irreparable Injury In The Absence Of A Stay. 
“Irreparable harm occurs when a party has no adequate remedy at law, 
typically because its injuries cannot be fully compensated through an award of 
damages.” Gen. Motors Corp. v. Harry Brown’s, LLC, 563 F.3d 312, 319 (8th Cir. 
2009). Non-quantifiable financial harms include “loss of intangible assets such as 
reputation and goodwill.” Id. A regulation imposes an improper “risk of irreparable 
harm” when it “depriv[es]” parties of “payments with no guarantee of eventual 
recovery.” Ala. Ass’n, 141 S. Ct. at 2489. 
“[C]omplying with a regulation later held invalid almost always produces the 
irreparable harm of nonrecoverable compliance costs.” Thunder Basin Coal Co. v. 
Reich, 510 U.S. 200, 220-21 (1994) (Scalia, J., concurring). That alone is sufficient 

20 
 
here. But Petitioners will also suffer a variety of harms recognized as irreparable 
under any circumstances. Because of the word limits of Rule 27, Petitioners 
respectfully direct the Court to the background section, as well as the attached 
affidavits, but to pick just a few examples:  
Petitioners are already facing intense labor shortages, and they often require 
many employees with specialized licenses or training, leading to an extremely small 
pool of potential hires, plus on-boarding processes that prevent new hires from 
quickly ramping up. McKee Affidavit (Ex. C), ¶7; Lawrence Affidavit (Ex. D) ¶4; 
Berkebile Affidavit (Ex. E) ¶6; Rabine Affidavit (Ex. F), ¶¶4-5. But sizable portions 
of their workforce—sometimes a majority—have indicated that they will not comply 
with the Mandate, and to maximize the odds of finding a job at a company not 
covered by the Mandate, there is a strong incentive for them to leave soon, 
regardless of when OSHA will actually start enforcing the Mandate, and changing 
jobs is especially easy given the strong employment market. Berkebile Affidavit (Ex. 
E) ¶7; Lawrence Affidavit (Ex. D) ¶5. Indeed, “OSHA strongly encourages 
employers to implement the required measures to support employee vaccination as 
soon as practicable” in advance of the deadlines. Mandate at 468. 
Because of the difficulty in finding replacement workers, these companies 
will be drastically short in workers, meaning cascading lost business with no hope 
of recovery. Ala. Ass’n, 141 S. Ct. at 2489. These delayed and canceled shipments 

21 
 
and services will sour customer relationships, leading to lost business and 
reputational harm. Pyle Affidavit (Ex. B) ¶7; Lawrence Affidavit (Ex. D) ¶¶7-8; 
Berkebile Affidavit (Ex. E) ¶8; Rabine Affidavit (Ex. F), ¶8. To stay afloat, 
companies will have to make drastic employment cuts, including of vaccinated 
workers. See, e.g., Lawrence Affidavit (Ex. D) ¶7. 
The Mandate’s onerous logistical requirements for testing will likewise cause 
irreparable harm by effectively “forc[ing] [workers] either to get vaccinated, or 
quit.” Id., ¶10. Companies often have no sterile location to do testing, nor even the 
manpower to carry it out—meaning workers must leave the premises to get tested, 
causing additional lost productivity. Berkebile Affidavit (Ex. E) ¶10. The testing 
regime is undoubtedly designed to be so burdensome that it presents no real option 
for the vast majority of companies. 
For the individual Petitioner Terri Mitchell, a compelled vaccination 
represents an irreparable harm because it cannot be undone, and involuntary nasal 
or throat testing—by edict of the President—is a breach of personal autonomy. As 
Justice Scalia said: “I doubt that the proud men who wrote the charter of our liberties 
would have been so eager to open their mouths for royal inspection.” Maryland v. 
King, 569 U.S. 435, 482 (2013) (Scalia, J., dissenting). 
III. 
The Equities And Public Interest Strongly Favor A Stay. 
The equities and public interest likewise favor a stay. Nken, 556 U.S. at 435. 

22 
 
It “is indisputable that the public has a strong interest in combating the spread 
of the COVID–19 Delta variant. But our system does not permit agencies to act 
unlawfully even in pursuit of desirable ends.”  Ala. Ass’n, 141 S. Ct. at 2490. That 
ends the matter: OSHA has no equitable interest in enforcement of an invalid ETS.  
Moreover, Respondents have diminished equities. OSHA seeks to press-gang 
private parties into forcibly vaccinating or testing over 30 million employees. And 
OSHA issued the Mandate without even posting drafts or summaries online to 
inform the public—unwarranted secrecy in the false name of efficiency, given that 
the COVID pandemic has been around for nearly two years. Benisek v. Lamone, 138 
S. Ct. 1942, 1944 (2018) (equitable interests “tilt[] against” a party who waits 
“years” to initiate action). Meanwhile, even before the Mandate was issued, the 
Department of Labor demanded that companies “begin the process of adopting 
vaccination mandates,”1 an obvious in terrorem scheme where Respondents use 
threat of the Mandate to strong-arm companies into giving the government what it 
wants, regardless of whether the Mandate will be upheld in court.  
Threatening to issue illegal edicts as a strategy to force involuntary 
vaccinations and testing is a cynical exercise of government powers, unworthy of 
 
1 Ben Penn, Top DOL Lawyer Courts Business Support for Biden’s Vaccine Order, 
Bloomberg Law, Sept. 10, 2021, https://news.bloomberglaw.com/daily-labor-
report/top-dol-lawyer-courts-business-support-for-bidens-vaccine-order. 

23 
 
equitable charity. Precision Instrument Mfg. Co. v. Auto. Maint. Mach. Co., 324 U.S. 
806, 815 (1945). 
By contrast, Petitioners have strong equitable interests. They have already 
suffered greatly over the last two years and now face terribly difficult choices about 
the viability of their businesses, as demonstrated above.  
There are also very strong public interests in staying the Mandate, as the 
attached affidavits explain in detail. Petitioners were deemed “essential” during the 
lockdown because they serve as critical cogs in our nation’s economy. Lawrence 
Affidavit (Ex. D) ¶9; Berkebile Affidavit (Ex. E) ¶9; Rabine Affidavit (Ex. F), ¶10. 
These companies represent just a tiny fraction of those affected. Nationwide, thirty 
percent of unvaccinated workers have indicated they will not comply, which will 
wreak havoc on supply chains. See, e.g., Spencer Kimball, Business Groups Ask 
White House to Delay Biden Covid Vaccine Mandate Until After the Holidays, 
CNBC, 
https://www.cnbc.com/2021/10/25/businesses-ask-white-house-to-delay-
biden-covid-vaccine-mandate-until-after-holidays.html.  
Food will not be produced or transported to grocery stores, schools, and 
nursing homes; household products will not be manufactured; damaged roofs and 
sinkholes will not be repaired; snow will not get removed; and buildings with broken 
HVAC systems will turn into freezing meat lockers. Pyle Affidavit (Ex. B) ¶10; 
McKee Affidavit (Ex. C), ¶11; Lawrence Affidavit (Ex. D) ¶9; Berkebile Affidavit 

24 
 
(Ex. E) ¶9; Rabine Affidavit (Ex. F), ¶9. This in turn will cause a cascade effect that 
takes down companies at each link in the supply chain, along with the workers at 
those companies and their local communities. McKee Affidavit (Ex. C), ¶¶12-13. 
IV. 
The Court Should Stay The Mandate Nationwide. 
Because the Mandate was issued without legal authority, it is void, and 
Respondents (including Rule 65(d)(2) parties) should be stayed from enforcing the 
Mandate nationwide, especially because JCN’s and IBA’s members are located 
across the country. Califano v. Yamasaki, 442 U.S. 682, 702 (1979) (“[T]he scope 
of injunctive relief is dictated by the extent of the violation established….”).2 
CONCLUSION 
 
The Court should grant an administrative stay and a stay pending judicial 
review. 
November 4, 2021  
 
 
 
Respectfully submitted 
/s/ R. Trent McCotter 
C. Boyden Gray 
Jonathan Berry 
R. Trent McCotter 
  Counsel of Record 
Michael B. Buschbacher 
Jordan E. Smith 
BOYDEN GRAY & ASSOCIATES  
 
2 At the very least, a stay would extend to all Petitioners, including Job Creators 
Network’s members and IBA’s members. See Warth v. Seldin, 422 U.S. 490, 515 
(1975) (“[I]t can reasonably be supposed that the remedy, if granted, will inure to 
the benefit of those members of the association actually injured.”). 

25 
 
801 17th Street Nw., Suite 350  
Washington, DC 20006  
202-706-5488 
mccotter@boydengrayassociates.com 
Counsel for Petitioners 
 
 

26 
 
CERTIFICATE OF COMPLIANCE 
I hereby certify that:  
1. This motion complies with the type-volume limitation of Fed. R. App. P. 
27(d)(2)(A) because it contains 5181 words, excluding the parts of the motion 
exempted by Fed. R. App. P. 32(f).  
2. This motion complies with the typeface requirements of Fed. R. App. P. 
32(a)(5) and the typestyle requirements of Fed. R. App. P. 32(a)(6) because it has 
been prepared in a proportionally spaced typeface using Microsoft Word 2016 in 
14-point Times New Roman font. 
3. The brief and addendum have been scanned for viruses and are virus-free. 
 
 
/s/ R. Trent McCotter 
R. Trent McCotter 
 
 
 
 

27 
 
CERTIFICATE OF SERVICE 
I certify that on November 4, 2021, the foregoing document was electronically 
filed with the United States Court of Appeals for the Eighth Circuit using the 
CM/ECF system.  
I further certify that I will timely serve the following via certified U.S. Mail: 
U.S. Attorney General 
U.S. Department of Justice  
950 Pennsylvania Ave., N.W. 
Washington, D.C. 20530 
 
Secretary of Labor 
U.S. Department of Labor 
200 Constitution Ave., N.W., Room C-2318 
Washington, D.C. 20210 
 
Douglas Parker 
Assistant Secretary of Labor for Occupational Safety & Health 
200 Constitution Ave., N.W., Room S-4004 
Washington, D.C. 20210 
 
Edmund Baird 
(also served via email at zzSOL-Covid19-ETS@dol.gov) 
Associate Solicitor of Labor for Occupational Safety and Health 
U.S. Department of Labor 
200 Constitution Avenue N.W., Rooms S-4004 
Washington, D.C. 20210 
 
/s/ R. Trent McCotter 
R. Trent McCotter 
 

EXHIBIT A 

AFFIDAVIT OF ALFREDO ORTIZ 
1. 
My name is Alfredo Ortiz. I am over the age of 18 and am competent to make this 
declaration. The facts set forth in this declaration are based on my personal 
knowledge. 
2. 
I am the president and CEO of Job Creators Network (“JCN”), a not-for-profit 
organization registered under section 501(c)(4) of the Internal Revenue Code.   
3. 
JCN’s mission is to educate employees of Main Street America, in order to protect 
the 85 million people who depend on the success of small businesses. Members join 
JCN through its website and receive a weekly newsletter, policy updates, 
educational materials, regional and local networking events and media 
opportunities that amplify their interests with policymakers and the broader public.  
4. 
JCN provides its members with the tools to become the voice of free enterprise in 
the media, in Congress, in state capitals, in their communities, and their 
workplaces – allowing them to hold policymakers and politicians accountable to job 
creators and their employees.  When JCN members suffer injury due to bad public 
policy, JCN amplifies their stories in the media to educate policymakers and the 
public about the significant consequences of bad public policy in an attempt to 
rectify it. 
5. 
JCN supports over thirty million small businesses nationwide, many of whom 
provide such important public benefits that they were deemed “essential” during 
the COVID lockdowns. But after surviving the lockdowns and the height of the 
pandemic, these businesses now face substantial, imminent, and irreparable loss 
because of the recent OSHA vaccine mandate.  
6. 
To be clear, JCN is not anti-vaccine. In fact, JCN and many of its members 
encourage their employees to get COVID vaccines—but they do not agree with a 
government-imposed mandate that will cause incredible injury to businesses, 
citizens, and the national economy. 
7. 
The country—and smaller businesses in particular—is facing a severe labor 
shortage, with companies struggling to hire enough workers to keep up with 
demand. The strain is even more severe for companies that require workers to have 
certain licenses or training, which makes the pool of applicants even smaller. 
8. 
If any sizable number of unvaccinated employees quit rather than subject 
themselves to involuntary vaccination or weekly testing, those companies will 
necessarily lose work, damage their reputations, and face a distinct possibility of 
shutting down. 
9. 
And it is not mere conjecture that workers will leave companies rather than comply. 
Given the labor shortage, it is easy for those employees to leave a company with 100 

or more employees (covered by the mandate) and go to a smaller company (not 
covered by the mandate). In fact, even before any deadlines in the mandate take 
legal effect, workers will leave for new jobs in order to maximize their future 
employment opportunities.  
10. 
On top of the labor issues caused by the mandate, there will be dramatic compliance 
costs: JCN members will have to stand up systems to track their vaccinated 
employees and weekly testing of unvaccinated employees. Any oversight or mistake 
during this process could lead to fines of nearly $14,000. Further, companies have 
been left in the dark about whether they will have to pay for the tracking system 
and frequent testing, which tests are acceptable, whether costs can or should be 
passed along to employees, and whether the companies will be liable if an employee 
suffers an adverse effect from the vaccine.  
11. 
JCN members like Lawrence Trucking Company and Guy Chemical—whose leaders 
are submitting their own affidavits in this matter—provide confirmation of the 
incredible damage the mandate will cause to smaller businesses regulated by the 
mandate. They are merely the tip of the iceberg, as the mandate will allegedly apply 
to 100 million workers across the country, regardless of industry. 
12. 
On October 19, 2021, I participated in a call with representatives from OSHA, 
Office of Information and Regulatory Affairs and the Small Business 
Administration to try and persuade them not to issue the mandate, or to narrow its 
scope dramatically. But these agencies said they were not allowed to reveal 
anything about the scope of the mandate until it was issued publicly. The lack of 
transparency and public involvement and scrutiny in formulating the mandate has 
provided its own harms because JCN members have no idea what would be included 
in the mandate, what exceptions might apply, or even whether they will actually be 
covered by it. 
13. 
I declare under penalty of perjury that the foregoing is true and correct. 
Executed on: October 21, 2021                                              
                                                                                     ___________________________ 
 
 
 
                                                               Alfredo Ortiz 

EXHIBIT B 



EXHIBIT C 




EXHIBIT D 

AFFIDAVIT OF ERIC LAWRENCE 
1. 
My name is Eric Lawrence. I am over the age of 18 and am competent to 
make this declaration. The facts set forth in this declaration are based on my 
personal knowledge. 
2. 
I am the CEO and owner of Lawrence Transportation Company, a 
refrigerated truckload carrier that forms an important part of our country's 
critical supply chain. Our principal place of business is Rochester, Minnesota. 
We have repeatedly encouraged our employees to get vaccinated, but we have 
declined to impose a mandate. 
3. 
Lawrence Transportation Company is a family-owned business that dates 
back several decades and currently employees over 100 employees. It is 
therefore subject to the new OSHA emergency vaccine mandate, which 
requires the Company's staff to receive a coronavirus vaccine or get tested 
frequently, with noncompliance resulting in major fines. 
4. 
The new OSHA vaccine mandate causes irreparable and imminent harm to 
Lawrence Transportation Company. The Company is already facing severe 
labor shortages-the truck driver shortage has been national news-and is 
struggling to hire commercial truck drivers and technicians to keep the fleet 
on the road. Many of these employees must have specialized training and 
certifications like a Commercial Driver's License (CDL) or ASE certification, 
meaning the Company faces an extremely limited pool of potential hires to fill 
any vacancies. We also have an intensive on-boarding process that lasts three 
days and has both classroom and road-test elements. Because of all this, we 
cannot simply hire more employees and have them start quickly. 
5. 
I would estimate that 10-15% of Lawrence Transportation Company 
employees would rather walk off the job than be forced to get a vaccine or 
undergo weekly testing. And to maximize the odds that they quickly find new 
jobs at companies not subject to the OSHA mandate, these workers have an 
incentive to leave Lawrence Transportation Company soon after the OSHA 
mandate's issuance date, regardless of when the mandate formally requires 
vaccines or testing to begin. 
6. 
Because of the difficulty in finding qualified, licensed workers to fill 
vacancies, Lawrence Transportation Company will likely lose a substantial 
number of key workers who simply cannot be replaced at any point in the 
near future. 

7. 
The absence of drivers would be devastating. Our drivers are how we make 
money. A lack of sufficient drivers would directly hurt our business, its 
positive, hard-working culture, its reputation, and its bottom line. Deliveries 
will be delayed or canceled, resulting in severe financial and reputational 
damages for the Company, as well as a likely ripple effect of losing business 
to smaller trucking companies that do not have to comply with the OSHA 
mandate. If enough workers leave, we would have to consider closing 
operations. As an interim measure to keep the company's finances afloat, I 
would likely have to save costs by laying off non-drivers like office employees. 
Ironically, these employees are almost all vaccinated, meaning the mandate 
would result in vaccinated people losing their jobs. 
8. 
A loss of technicians will have many of the same effects because the trucks 
must be safe and operational for the drivers to complete their trips in a 
timely manner. We cannot run our fleet if we cannot maintain it, and we 
cannot maintain it without the experienced mechanics and technicians. 
9. 
Delayed or canceled shipments will also have severe negative consequences 
for the public at large, who depend on companies like Lawrence 
Transportation Company to deliver critical refrigerated foods. The Company's 
customers include major supermarkets, dairy companies, and meat 
companies, whose products must be shipped in refrigerated trucks. Put 
simply, without enough drivers and technicians, those deliveries will not be 
made, and people will not be able to get food deliveries to their grocery stores. 
For this reason, Lawrence Transportation Company was deemed "essential" 
during the COVID lockdowns. 
10. 
The OSHA mandate imposes additional irreparable harms on Lawrence 
Transportation Company in the form of logistics. For example, drivers are 
spread across the country for 7 to 10 days at a time, making it nearly 
impossible for them to get tested weekly if they choose not to get a vaccine. 
Moreover, drivers work unusual hours and have legally mandated break 
periods, making it even more difficult for them to try and get tested. Even if 
drivers could find time for testing, pharmacies don't exactly have parking 
spots for big rigs. All of this subjects the Company to extraordinarily large 
fines due to missed tests, simply as a result of the nature of the trucking 
industry. And it, in effect, forces those drivers either to get vaccinated, or 
quit-with no viable option to undergo weekly testing instead. 
11. 
I declare under penalty of perjury that the foregoing is true and correct. 

Executed on: October :2 J , 2021 
Eric Lawrence 

EXHIBIT E 

AFFIDAVIT OF GUY BERKEBILE 
1. 
My name is Guy Berkebile. I am over the age of 18 and am competent to 
make this declaration. The facts set forth in this declaration are based on my 
personal knowledge. 
2. 
I am the President of Guy Chemical, a chemical manufacturer in Somerset 
County, Pennsylvania, specializing in silicone products and packaging for the 
consumer and industrial markets. 
3. 
Founded in 1995, Guy Chemical provides employment for more than 160 
people in rural Pennsylvania, employing a wide variety of workers ranging 
from unskilled laborers to productions managers, chemists, and engineers. 
Companies like Guy Chemical are the bedrock of Main Streets across the 
country. 
4. 
Guy Chemical is therefore subject to the new OSHA emergency vaccine 
mandate, which requires the company's staff to receive a coronavirus vaccine 
or get tested frequently, with noncompliance resulting in major fines. 
5. 
The new OSHA vaccine mandate causes in-eparable and imminent harm to 
Guy Chemical. Company is already facing severe labor shortages and is 
struggling to keep enough workers on-board to keep up with work orders. 
6. 
Because our company uses hazardous compounds, many of our employees 
must have specialized training and certifications. For example, many 
employees have degrees (including one with a Ph.D.) in chemisti-y, chemical 
engineering, or mechanical engineering. Employees also must receive OSHA 
training during on-boarding, so they can safely handle hazardous substances. 
All our employees have specialized knowledge about our specific 
manufacturing processes-knowledge that cannot be learned quickly or in 
advance. For all of these reasons, the Company faces an extremely limited 
pool of potential hires to fill any vacancies, and there is a lengthy training 
period before they can be fully operational. 
7. 
A majority of employees at Guy Chemical would refuse to comply with the 
mandate. And there is a tremendous incentive fo1· those employees to seek 
new employment with a smaller company (not covered by the mandate) soon 
after the OSHA mandate's issuance date, regardless of when the mandate 
formally requires vaccines or testing to begin. 
8. 
If even 25% of om· workers refuse to show up, it would be nearly impossible to 
keep up with orders. Clients have placed orders into 2022, and if we cannot 

complete those orders, we will not only lose out on those contracts, but we 
also will likely lose those customers altogether because of the reputational 
dam.ages from not completing orders. 
9. 
Delayed or canceled shipments and production will also have severe negative 
consequences for the public at large, who depend on companies like Guy 
Chemical for dozens of important household products, construction supplies, 
and automotive parts. Guy Chemical was deemed "essential" during the 
COVID lockdowns, meaning we never shut our doors-that is how important 
our products are to the public. 
10. 
The OSHA mandate imposes additional irreparable harms on Guy Chemical 
in the form oflogistics. We will have to develop and stand up an indefinite 
database to track staff vaccination and testing status, and we simply do not 
have the manpower to perform tests for over 160 employees on a weekly 
basis. Nor do we have any sterile location to do the testing, meaning the 
employees may have to lose productivity to go off-site for testing. And any 
slip up could mean the Company is subjected to extraordinarily large fines. 
The effect of the onerous testing requirements is to compel companies to 
remove testing as an option so that employees will instead have to be 
vaccinated-or terminated. There is no practical choice. 
11. 
I have been working in businesses for nearly 50 years. We have never 
experienced as difficult a year as 2021 (even worse than 2020 during the 
height of COVID). Between worker shortages and supply chain issues, it has 
been incredibly difficult to keep the company moving ahead. But now OSHA 
heaps on these extreme new burdens-requiring vaccinations, testing, record-
keeping-all at great cost to the company. This could finally be the straw that 
broke the camel's back. 
12. 
It is especially frustrating for small businesses like Guy Chemical to face 
these burdens based on a purely arbitrary cut-off of 100 or more employees, 
especially when it appears that governmental entities with incredible 
resources- like Congress and the White House-are not subject to the OSHA 
mandate. 
13. 
I declare under penalty of perjury that the foregoing is true and correct. 
Executed on: October 20th, 2021 
Guy Berke bile 

EXHIBIT F 

AFFIDAVIT OF GARY RABINE 
1. My name is Gary Rabine. I am over the age of 18 and am competent to make this 
declaration. The facts set forth in this declaration are based on my personal 
knowledge.
2. I am the founder and chairman of the Rabine Group of Companies, which includes 
over a dozen separate entities in Illinois, totaling over 300 employees. I am also a 
cofounder and shareholder of Pipe View America where we have over 100 
employees. Our companies specialize in repairing parking lots, roofs, doors and 
commercial docks, and HVAC systems, as well as in snow removal.
3. Because of our employee totals, we are subject to the new OSHA emergency 
vaccine mandate, which requires employees to receive a coronavirus vaccine or get 
tested frequently, with noncompliance resulting in major fines.
4. The new OSHA vaccine mandate causes irreparable and imminent harm to the 
Rabine Group and each of its companies. We are already facing severe labor 
shortages and are struggling to find enough workers to keep up with our customers’ 
needs.
5. Many of our employees must have specialized training and knowledge about 
industry safety, machinery and repair processes—knowledge that cannot be learned 
quickly. For all of these reasons, our companies face a limited pool of potential hires 
to fill any vacancies, and new hires cannot become immediately operational.
6. Based on my own personal knowledge, I estimate that approximately 20% of our 
employees would refuse to comply with the mandate. If forced to comply, some of 
them would find jobs with smaller companies not covered (yet) by a federal vaccine 
mandate, but others would be left jobless. Many of our employees have been with us 
for decades and are like family. They are not job hoppers who know how to move 
from one job to the next.
7. If 20% of our workers cannot show up, we would no longer be a profitable 
enterprise. This is especially true because the employees we’d lose are among our 
leadership team and often the hardest working: people who love freedom and have 
strong independent minds, become our greatest leaders, and get the job done. These 
employees would be unable to provide for their families, pay bills, or even spend 
money on necessities—causing a cascading loss of wealth and economic activity in 
the smaller towns where many of our employees live. The loss of these people will 
cause a downsizing that will cause additional teammates, whether vaccinated or 
not, to be laid off.
8. If this happens, we would undoubtedly lose substantial business and clients to 
other companies because customers’ repair work needs to be done as soon as 
possible. They cannot wait weeks or months for us to recruit and train more

employees. We would suffer tremendous financial and reputational damages from 
not being able to show up quickly to emergency jobs. 
9. There would also be terrible consequences for the public. People depend on our
companies to arrive within hours, if not minutes, to repair failing roofs, parking lots
with sink holes and pot holes, failing HVAC systems on cold days, and broken
ramps, docks, and doors that prevent buildings from being operational. These
customers can face legal liability if they do not get repairs finished quickly. We
provide those services—but we will be unable to meet demand because of the
vaccine mandate.
10. Because of the critical services we provide, all of our construction services
companies in the Rabine Group of Companies were deemed “essential” during the
lockdowns.
11. After everything our companies—and other small businesses just like them—
have been through in the last two years, it is unthinkable that the federal
government would impose this mandate. It is a catastrophic job killer and an
offensive and financially devastating violation of liberty.
12. I declare under penalty of perjury that the foregoing is true and correct.
Executed on: October ___28___, 2021 
 _______________________ 
Gary Rabine 

EXHIBIT G 


EXHIBIT H 

BILLING CODE:  4510-26-P
DEPARTMENT OF LABOR
Occupational Safety and Health Administration
29 CFR Parts 1910, 1915, 1917, 1918, 1926, and 1928
[Docket No. OSHA-2021-0007]
RIN 1218-AD42
COVID-19 Vaccination and Testing; Emergency Temporary Standard
AGENCY:  Occupational Safety and Health Administration (OSHA), Department of 
Labor
ACTION:  Interim final rule; request for comments.
SUMMARY:  The Occupational Safety and Health Administration (OSHA) is issuing an 
emergency temporary standard (ETS) to protect unvaccinated employees of large 
employers (100 or more employees) from the risk of contracting COVID-19 by strongly 
encouraging vaccination.  Covered employers must develop, implement, and enforce a 
mandatory COVID-19 vaccination policy, with an exception for employers that instead 
adopt a policy requiring employees to either get vaccinated or elect to undergo regular 
COVID-19 testing and wear a face covering at work in lieu of vaccination.  
DATES: The rule is effective [INSERT DATE OF PUBLICATION IN THE FEDERAL 
REGISTER].  The incorporation by reference of certain publications listed in the rule is 
approved by the Director of the Federal Register as of [INSERT DATE OF 
PUBLICATION IN THE FEDERAL REGISTER]. 
Compliance dates: Compliance dates for specific provisions are in 29 CFR 
1910.501(m). 
Comments: Written comments, including comments on any aspect of this ETS 
and whether this ETS should become a final rule, must be submitted by [INSERT DATE 
This document is scheduled to be published in the
Federal Register on 11/05/2021 and available online at
federalregister.gov/d/2021-23643, and on govinfo.gov

30 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER] in 
Docket No. OSHA-2021-0007. Comments on the information collection determination 
described in Additional Requirements (Section V.K. of this preamble) (OMB review 
under the Paperwork Reduction Act of 1995) may be submitted by [INSERT DATE 60 
DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER] in Docket 
No. OSHA-2021-0008.
ADDRESSES:  In accordance with 28 U.S.C. 2112(a), the Agency designates Edmund 
C. Baird, the Associate Solicitor for Occupational Safety and Health, Office of the 
Solicitor, U.S. Department of Labor, to receive petitions for review of the ETS. Service 
can be accomplished by email to zzSOL-Covid19-ETS@dol.gov. 
Written comments.  You may submit comments and attachments, identified by 
Docket No. OSHA-2021-0007, electronically at www.regulations.gov, which is the 
Federal e-Rulemaking Portal.  Follow the online instructions for making electronic 
submissions.
Instructions: All submissions must include the agency's name and the docket 
number for this rulemaking (Docket No. OSHA-2021-0007). All comments, including 
any personal information you provide, are placed in the public docket without change and 
may be made available online at www.regulations.gov. Therefore, OSHA cautions 
commenters about submitting information they do not want made available to the public, 
or submitting materials that contain personal information (either about themselves or 
others), such as Social Security Numbers and birthdates.
Docket: To read or download comments or other material in the docket, go to 
Docket No. OSHA-2021-0007 at www.regulations.gov. All comments and submissions 
are listed in the www.regulations.gov index; however, some information 
(e.g., copyrighted material) is not publicly available to read or download through that 
website. All comments and submissions, including copyrighted material, are available for 

inspection through the OSHA Docket Office. Documents submitted to the docket by 
OSHA or stakeholders are assigned document identification numbers (Document ID) for 
easy identification and retrieval. The full Document ID is the docket number plus a 
unique four-digit code. OSHA is identifying supporting information in this ETS by 
author name and publication year, when appropriate. This information can be used to 
search for a supporting document in the docket at http://www.regulations.gov.  Contact 
the OSHA Docket Office at 202–693–2350 (TTY number: 877–889–5627) for assistance 
in locating docket submissions.
FOR FURTHER INFORMATION CONTACT: 
General information and press inquiries: Contact Frank Meilinger, OSHA Office 
of Communications, U.S. Department of Labor; telephone (202) 693-1999; email 
OSHAComms@dol.gov.
For technical inquiries: Contact Andrew Levinson, OSHA Directorate of 
Standards and Guidance, U.S. Department of Labor; telephone (202) 693-1950; email 
ETS@dol.gov.
SUPPLEMENTARY INFORMATION:  The preamble to the ETS on COVID-19 
vaccination and testing follows this outline:
Table of Contents
I.  Executive Summary and Request for Comment
A. Executive Summary
B. Request for Comment
II. Pertinent Legal Authority
III. Rationale for the ETS
A. Grave Danger
B. Need for the ETS
IV. Feasibility
A.  Technological Feasibility 
B.  Economic Analysis 
V. Additional Requirements
VI. Summary and Explanation
A. Purpose
B. Scope and Application
C. Definitions
D. Employer Policy on Vaccination

E. Determination of Employee Vaccination Status
F. Employer Support for Employee Vaccination
G. COVID-19 Testing for Employees Who are Not Fully Vaccinated
H. Employee Notification to Employer of a Positive COVID-19 Test and Removal
I.
Face Coverings
J.
Information Provided to Employees
K. Reporting COVID-19 Fatalities and Hospitalizations to OSHA
L. Availability of Records
M. Dates
N. Severability
O. Incorporation by Reference
VII. Authority and Signature
I. Executive Summary and Request for Comment
A.  Executive Summary
This ETS is based on the requirements of the Occupational Safety and Health Act 
(OSH Act or Act) and legal precedent arising under the Act. Under section 6(c)(1) of the 
OSH Act, 29 U.S.C. 655(c)(1), OSHA shall issue an ETS if the agency determines that 
employees are subject to grave danger from exposure to substances or agents determined 
to be toxic or physically harmful or from new hazards, and an ETS is necessary to protect 
employees from such danger.  These legal requirements are more fully discussed in 
Pertinent Legal Authority (Section II. of this preamble). This ETS does not apply to 
workplaces subject to EO 14042 on Requiring Coronavirus Disease 2019 Vaccination for 
Federal Contractors.  In addition, OSHA will treat federal agencies’ compliance with EO 
14043, and the Safer Federal Workforce Task Force guidance issued under section 4(e) of 
Executive Order 13991 and section 2 of Executive Order 14043, as sufficient to meet 
their obligations under the OSH Act and EO 12196.     
COVID-19 has killed over 725,000 people in the United States in less than two 
years, and infected millions more (CDC, October 18, 2021 – Cumulative US Deaths). 
The pandemic continues to affect workers and workplaces. While COVID-19 vaccines 
authorized or approved by the U.S. Food and Drug Administration (FDA) effectively 
protect vaccinated individuals against severe illness and death from COVID-19, 
unvaccinated individuals remain at much higher risk of severe health outcomes from 

COVID-19.  Further, unvaccinated workers are much more likely to contract and transmit 
COVID-19 in the workplace than vaccinated workers.  OSHA has determined that many 
employees in the U.S. who are not fully vaccinated against COVID-19 face grave danger 
from exposure to SARS-CoV-2 in the workplace.  This finding of grave danger is based 
on the severe health consequences associated with exposure to the virus along with 
evidence demonstrating the transmissibility of the virus in the workplace and the 
prevalence of infections in employee populations, as discussed in Grave Danger (Section 
III.A. of this preamble).
OSHA has also determined that an ETS is necessary to protect unvaccinated 
workers from the risk of contracting COVID-19 at work, as discussed in Need for the 
ETS (Section III.B. of this preamble).  At the present time, workers are becoming 
seriously ill and dying as a result of occupational exposures to COVID-19, when a simple 
measure, vaccination, can largely prevent those deaths and illnesses.  The ETS protects 
these workers through the most effective and efficient control available – vaccination – 
and further protects workers who remain unvaccinated through required regular testing, 
use of face coverings, and removal of all infected employees from the workplace.  OSHA 
also concludes, based on its enforcement experience during the pandemic to date, that 
continued reliance on existing standards and regulations, the General Duty Clause of the 
OSH Act, 29 U.S.C. 654(a)(1), and workplace guidance, in lieu of an ETS, is not 
adequate to protect unvaccinated employees from the grave danger of being infected by, 
and suffering death or serious health consequences from, COVID-19.
OSHA will continue to monitor trends in COVID-19 infections and death as more 
of the workforce and the general population become fully vaccinated against COVID-19 
and the pandemic continues to evolve.  Where OSHA finds a grave danger from the virus 
no longer exists for the covered workforce (or some portion thereof), or new information 

indicates a change in measures necessary to address the grave danger, OSHA will update 
this ETS, as appropriate.
 This ETS applies to employers with a total of 100 or more employees at any time 
the standard is in effect.  In light of the unique occupational safety and health dangers 
presented by COVID-19, and against the backdrop of the uncertain economic 
environment of a pandemic, OSHA is proceeding in a stepwise fashion in addressing the 
emergency this rule covers.  OSHA is confident that employers with 100 or more 
employees have the administrative capacity to implement the standard’s requirements 
promptly, but is less confident that smaller employers can do so without undue 
disruption.  OSHA needs additional time to assess the capacity of smaller employers, and 
is seeking comment to help the agency make that determination.  Nonetheless, the agency 
is acting to protect workers now in adopting a standard that will reach two-thirds of all 
private-sector workers in the nation, including those working in the largest facilities, 
where the most deadly outbreaks of COVID-19 can occur.
The agency has also evaluated the feasibility of this ETS and has determined that 
the requirements of the ETS are both economically and technologically feasible, as 
outlined in Feasibility (Section IV. of this preamble). The specific requirements of the 
ETS are outlined and described in Summary and Explanation (Section VI. of this 
preamble).
B.  Request for Comment
Although this ETS takes effect immediately, it also serves as a proposal under 
Section 6(b) of the OSH Act(29 U.S.C. 655(b)) for a final standard.  Accordingly, OSHA 
seeks comment on all aspects of this ETS and whether it should be adopted as a final 
standard.  OSHA encourages commenters to explain why they prefer or disfavor 
particular policy choices, and include any relevant studies, experiences, anecdotes or 

other information that may help support the comment. In particular, OSHA seeks 
comments on the following topics:
1. Employers with fewer than 100 employees.  As noted above and fully 
discussed in the Summary and Explanation for Scope and Application (Section VI.B. of 
this preamble), OSHA has implemented a 100-employee threshold for the requirements 
of this standard to focus the ETS on companies that OSHA is confident will have 
sufficient administrative systems in place to comply quickly with the ETS.  The agency is 
moving in a stepwise fashion on the short timeline necessitated by the danger presented 
by COVID-19 while soliciting stakeholder comment and additional information to 
determine whether to adjust the scope of the ETS to address smaller employers in the 
future.  OSHA seeks information about the ability of employers with fewer than 100 
employees to implement COVID-19 vaccination and/or testing programs  Have you 
instituted vaccination mandates (with or without alternatives), or requirements for regular 
COVID-19 testing or face covering use?  What have been the benefits of your approach? 
What challenges have you had or could you foresee in implementing such programs?  Is 
there anything specific to your industry, or the size of your business, that poses particular 
obstacles in implementing the requirements in this standard?  How much time would it 
take, what types of costs would you incur, and how much would it cost for you to 
implement such requirements?
2.  Significant Risk.  If OSHA were to finalize a rule based on this ETS, it would 
be a standard adopted under 6(b) of the OSH Act, which requires a finding of significant 
risk from exposure to COVID-19.  As discussed more fully in Pertinent Legal Authority 
(Section II. of this preamble), this is a lower showing of risk than grave danger, the 
finding required to issue a 6(c) emergency temporary standard.  How should the scope of 
the rule change to address the significant risk posed by COVID-19 in the workplace?  
Should portions of the rule, such as face coverings, apply to fully vaccinated persons?

3.  Prior COVID-19 infections.  OSHA determined that workers who have been 
infected with COVID-19 but have not been fully vaccinated still face a grave danger from 
workplace exposure to SARS-CoV-2.  This is an area of ongoing scientific 
inquiry.  Given scientific uncertainty and limitations in testing for infection and 
immunity, OSHA is concerned that it would be infeasible for employers to operationalize 
a standard that would permit or require an exception from vaccination or testing and face 
covering based on prior infection with COVID-19. Is there additional scientific 
information on this topic that OSHA should consider as it determines whether to proceed 
with a permanent rule?  
 In particular, what scientific criteria can be used to determine whether a given 
employee is sufficiently protected against reinfection? Are there any temporal limits 
associated with this criteria to account for potential reductions in immunity over time? 
Do you require employees to provide verification of infection with COVID-19? If so, 
what kinds of verification do you accept (i.e., PCR testing, antigen testing, etc.)?  What 
challenges have you experienced, if any, in operationalizing such an exception? 
4.  Experience with COVID-19 vaccination policies.  Should OSHA impose a 
strict vaccination mandate (i.e., all employers required to implement mandatory 
vaccination policies as defined in this ETS) with no alternative compliance option? 
OSHA seeks information on COVID-19 vaccination policies that employers have 
implemented to protect workers.  If you have implemented a COVID-19 vaccination 
policy:
(a)  When did you implement it, and what does your policy require?  Was 
vaccination mandatory or voluntary under the policy?  Do you offer vaccinations on site? 
What costs associated with vaccination did you cover under the policy? What percentage 
of your workforce was vaccinated as a result? Do you offer paid leave for receiving a 

vaccination?  If vaccination is mandatory, have employees been resistant and if so what 
steps were required to enforce the policy?
(b)  How did you verify that employees were vaccinated?  Are there other reliable 
means of vaccination verification not addressed by the ETS that should be included?  Did 
you allow attestation where the employee could not find other proof, and if so, have you 
experienced any difficulties with this approach?  Have you experienced any issues with 
falsified records of vaccination, and if so, how did you deal with them?
(c)  Have you experienced a decrease in infection rates or outbreaks after 
implementing this policy?
(d) If you have received any requests for reasonable accommodation from 
vaccination, what strategies did you implement to address the accommodation and ensure 
worker safety (e.g., telework, working in isolation, regular testing and the use of face 
coverings)?
5.  COVID-19 testing and removal.  OSHA seeks information on COVID-19 
testing and removal practices implemented to protect workers.  
(a) Do you have a testing and removal policy in your workplace and, if so, what 
does it require?  How often do you require testing and what types of testing do you use 
(e.g., at-home tests, tests performed at laboratories, tests performed at your worksites)? 
What costs have you incurred as part of your testing and removal policies? Do you have 
difficulty in finding adequate availability of tests?  How often?  Have you experienced 
any issues with falsified test results, and if so, how did you deal with them?  Have you 
experienced other difficulties in implementing a testing and removal scheme, including 
the length of time to obtain COVID-19 test results?    Do you offer paid leave for testing?
(b) How often have you detected and removed COVID-19 positive employees 
from the workplace under this policy?  Do you provide paid leave and job protection to 
employees you remove for this reason?

(c) Should OSHA require testing more often than on a weekly basis?  
6.  Face coverings.  As discussed in the Summary and Explanation for Face 
Coverings (Section VI.I. of this preamble), ASTM released a specification standard on 
February 15, 2021, to establish a national standard baseline for barrier face coverings 
(ASTM F3502-21).  Should OSHA require the use of face coverings meeting the ASTM 
F3502-21 standard instead of the face coverings specified by the ETS?  If so, should 
OSHA also require that such face coverings meet the NIOSH Workplace Performance or 
Workplace Performance Plus criteria (see CDC, September 23, 2021)?  Are there 
particular workplace settings in which face coverings meeting one standard should be 
favored over another?  Are there alternative criteria OSHA should consider for face 
coverings instead of the F3502-21 standard or NIOSH Workplace Performance or 
Workplace Performance Plus criteria?  Is there sufficient capacity to supply face 
coverings meeting F3502-01 and/or NIOSH Workplace Performance or Workplace 
Performance Plus criteria to all employees covered by the ETS?  What costs have you 
incurred as part of supplying employees with face coverings meeting the appropriate 
criteria?
7.  Other controls.  This ETS requires employees to either be fully vaccinated 
against COVID-19 or be tested weekly and wear face coverings, based on the type of 
policy their employer adopts.  It stops short of requiring the full suite of workplace 
controls against SARS-CoV-2 transmission recommended by OSHA and the CDC, 
including distancing, barriers, ventilation, and sanitation.  As OSHA explained in Need 
for the ETS (Section III.B. of this preamble), OSHA has determined that it needs more 
information before imposing these requirements on the entire scope of industries and 
employers covered by the standard. OSHA is interested in hearing from employers about 
their experience in implementing a full suite of workplace controls against COVID-19.

What measures have you taken to protect employees against COVID-19 in your 
workplace?  Are there controls that you attempted to employ but found ineffective or 
infeasible?  What are they?  Why did you conclude that they were they ineffective or 
infeasible; for example, are there particular aspects of your workplace or industry that 
make certain controls infeasible? Do you require both fully vaccinated and unvaccinated 
employees to comply with these controls?    Have you experienced a reduction in 
infection rates or outbreaks since implementing these controls?
8.  Educational materials.   Have you implemented any policies or provided any 
information that has been helpful in encouraging an employee to be vaccinated?
9.  Feasibility and health impacts.  Do you have any experience or data that would 
inform OSHA’s estimates in its economic feasibility analysis or any of the assumptions 
or estimates used in OSHA’s identification of the number of hospitalizations prevented 
and lives saved from its health impacts analysis (see OSHA, October 2021c)?
References:
Centers for Disease Control and Prevention (CDC). (2021, October 18). COVID Data 
Tracker. https://covid.cdc.gov/covid-data-tracker/. (CDC, October 18, 2021)
Centers for Disease Control and Prevention (CDC). (2021, September 23). Types of 
Masks and Respirators.  https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-
sick/types-of-masks.html. (CDC, September 23, 2021)
Occupational Safety and Health Administration (OSHA). (2021c, October). Health 
Impacts of the COVID-19 Vaccination and Testing ETS. (OSHA, October 2021c)
II. Pertinent Legal Authority
The purpose of the Occupational Safety and Health Act of 1970 (OSH Act), 29 
U.S.C. 651 et seq., is “to assure so far as possible every working man and woman in the 
Nation safe and healthful working conditions and to preserve our human resources.” 29 
U.S.C. 651(b). To this end, Congress authorized the Secretary of Labor (Secretary) to 
promulgate and enforce occupational safety and health standards under sections 6(b) and 

(c) of the OSH Act.1 29 U.S.C. 655(b). These provisions provide bases for issuing 
occupational safety and health standards under the Act. Once OSHA has established as a 
threshold matter that a health standard is necessary under section 6(b) or (c)—i.e., to 
reduce a significant risk of material health impairment, or a grave danger to employee 
health—the Act gives the Secretary “almost unlimited discretion to devise means to 
achieve the congressionally mandated goal” of protecting employee health, subject to the 
constraints of feasibility. See United Steelworkers of Am. v. Marshall, 647 F.2d 1189, 
1230 (D.C. Cir. 1981). A standard’s individual requirements need only be “reasonably 
related” to the purpose of ensuring a safe and healthful working environment. Id. at 1237, 
1241; see also Forging Indus. Ass’n v. Sec’y of Labor, 773 F.2d 1436, 1447 (4th Cir. 
1985). OSHA’s authority to regulate employers is hedged by constitutional 
considerations and, pursuant to section 4(b)(1) of the OSH Act, the regulations and 
enforcement policies of other federal agencies. See, e.g., Chao v. Mallard Bay Drilling, 
Inc., 534 U.S. 235, 241 (2002). 
The OSH Act in section 6(c)(1) states that the Secretary “shall” issue an emergency 
temporary standard (ETS) upon a finding that the ETS is necessary to address a grave 
danger to workers. See 29 U.S.C. 655(c). In particular, the Secretary shall provide, 
without regard to the requirements of chapter 5, title 5, United States Code, for an 
emergency temporary standard to take immediate effect upon publication in the Federal 
Register if the Secretary makes two determinations: That employees are exposed to grave 
danger from exposure to substances or agents determined to be toxic or physically 
harmful or from new hazards, and  that such emergency standard is necessary to protect 
employees from such danger. 29 U.S.C. 655(c)(1).  A separate section of the OSH Act, 
section 8(c), authorizes the Secretary to prescribe regulations requiring employers to 
1 The Secretary has delegated most of his duties under the OSH Act to the Assistant Secretary of Labor for 
Occupational Safety and Health. Secretary’s Order 08-2020, 85 FR 58393 (Sept. 18, 2020). This section 
uses the terms Secretary and OSHA interchangeably.

make, keep, and preserve records that are necessary or appropriate for the enforcement of 
the Act. 29 U.S.C. 657(c)(1). Section 8(c) also provides that the Secretary shall require 
employers to keep records of, and report, work-related deaths and illnesses. 29 U.S.C. 
657(c)(2).  
The ETS provision, section 6(c)(1), exempts the Secretary from procedural 
requirements contained in the OSH Act and the Administrative Procedure Act, including 
those for public notice, comments, and a rulemaking hearing. See, e.g., 29 U.S.C. 
655(b)(3); 5 U.S.C. 552, 553. 
The Secretary must issue an ETS in situations where employees are exposed to a 
“grave danger” and immediate action is necessary to protect those employees from such 
danger. 29 U.S.C. 655(c)(1); Pub. Citizen Health Research Grp. v. Auchter, 702 F.2d 
1150, 1156 (D.C. Cir. 1983). The determination of what exact level of risk constitutes a 
“grave danger” is a “policy consideration that belongs, in the first instance, to the 
Agency.” Asbestos Info. Ass’n, 727 F.2d at 425 (accepting OSHA’s determination that 
eighty lives at risk over six months was a grave danger); Indus. Union Dep’t, AFL-CIO v. 
Am. Petroleum Inst., 448 U.S. 607, 655 n.62 (1980). However, a “grave danger” 
represents a risk greater than the “significant risk” that OSHA must show in order to 
promulgate a permanent standard under section 6(b) of the OSH Act, 29 U.S.C. 655(b). 
Int’l Union, United Auto., Aerospace, & Agr. Implement Workers of Am., UAW v. 
Donovan, 590 F. Supp. 747, 755-56 (D.D.C. 1984), adopted, 756 F.2d 162 (D.C. Cir. 
1985); see also Indus. Union Dep’t, AFL-CIO, 448 U.S. at 640 n.45 (noting the 
distinction between the standard for risk findings in permanent standards and ETSs).  
In determining the type of health effects that may constitute a “grave danger” 
under the OSH Act, the Fifth Circuit emphasized “the danger of incurable, permanent, or 
fatal consequences to workers, as opposed to easily curable and fleeting effects on their 
health.” Fla. Peach Growers Ass’n, Inc. v. U. S. Dep’t of Labor, 489 F.2d 120, 132 (5th 

Cir. 1974). Although the findings of grave danger and necessity must be based on 
evidence of “actual, prevailing industrial conditions,” see Int’l Union, 590 F. Supp. at 
751, when OSHA determines that exposure to a particular hazard would pose a grave 
danger to workers, OSHA can assume an exposure to a grave danger wherever that 
hazard is present in a workplace. Dry Color Mfrs. Ass’n, Inc. v. Dep’t of Labor, 486 F.2d 
98, 102 n.3 (3d Cir. 1973). 
In demonstrating whether OSHA had shown that an ETS is necessary, the Fifth 
Circuit considered whether OSHA had another available means of addressing the risk that 
would not require an ETS. Asbestos Info. Ass’n, 727 F.2d at 426 (holding that necessity 
had not been proven where OSHA could have increased enforcement of already-existing 
standards to address the grave risk to workers from asbestos exposure). Additionally, a 
standard must be both economically and technologically feasible in order to be 
“reasonably necessary and appropriate” under section 3(8) and, by inference, “necessary” 
under section 6(c)(1)(B) of the Act. Cf. Am. Textile Mfrs. Inst., Inc. v. Donovan, 452 U.S. 
490, 513 n.31 (1981) (noting “any standard that was not economically or technologically 
feasible would a fortiori not be ‘reasonably necessary or appropriate’” as required by the 
OSH Act’s definition of “occupational safety and health standard” in section 3(8)); see 
also Florida Peach Growers, 489 F.2d at 130 (recognizing that the promulgation of any 
standard, including an ETS, must account for its economic effect). However, given that 
section 6(c) is aimed at enabling OSHA to protect workers in emergency situations, the 
agency is not required to make a feasibility showing with the same rigor as in ordinary 
section 6(b) rulemaking. Asbestos Info. Ass’n, 727 F.2d at 424 n.18.  
On judicial review of an ETS, OSHA is entitled to great deference on the 
determinations of grave danger and necessity required under section 6(c)(1). See, e.g., 
Pub. Citizen Health Research Grp., 702 F.2d at 1156; Asbestos Info. Ass’n, 727 F.2d at 
422 (judicial review of these legislative determinations requires deference to the agency); 

cf. Am. Dental Ass’n v. Martin, 984 F.2d 823, 831 (7th Cir. 1993) (“the duty of a 
reviewing court of generalist judges is merely to patrol the boundary of reasonableness”). 
These determinations are “essentially legislative and rooted in inferences from complex 
scientific and factual data.” Pub. Citizen Health Research Grp., 702 F.2d at 1156. The 
agency is not required to support its conclusions “with anything approaching scientific 
certainty,” Indus. Union Dep’t, AFL-CIO, 448 U.S. at 656, and has the “prerogative to 
choose between conflicting evidence.” Asbestos Info. Ass’n, 727 F.2d at 425.  
The determinations of the Secretary in issuing standards under section 6 of the 
OSH Act, including ETSs, must be affirmed if supported by “substantial evidence in the 
record considered as a whole.” 29 U.S.C. 655(f). The Supreme Court described 
substantial evidence as “such relevant evidence as a reasonable mind might accept as 
adequate to support a conclusion.” Am. Textile Mfrs. Inst., 452 U.S. at 522-23 (quoting 
Universal Camera Corp. v. NLRB, 340 U.S. 474, 477 (1951)). The Court also noted that 
“the possibility of drawing two inconsistent conclusions from the evidence does not 
prevent an administrative agency’s finding from being supported by substantial 
evidence.” Id. at 523 (quoting Consolo v. FMC, 383 U.S. 607, 620 (1966)). The Fifth 
Circuit, recognizing the size and complexity of the rulemaking record before it in the case 
of OSHA’s ETS for organophosphorus pesticides, stated that a court’s function in 
reviewing an ETS to determine whether it meets the substantial evidence standard is 
“basically [to] determine whether the Secretary carried out his essentially legislative task 
in a manner reasonable under the state of the record before him.” Fla Peach Growers 
Ass’n, 489 F.2d at 129. 
Although Congress waived the ordinary rulemaking procedures in the interest of 
“permitting rapid action to meet emergencies,” section 6(e) of the OSH Act, 29 U.S.C. 
655(e), requires OSHA to include a statement of reasons for its action when it issues any 
standard. Dry Color Mfrs., 486 F.2d at 105-06 (finding OSHA’s statement of reasons 

inadequate). By requiring the agency to articulate its reasons for issuing an ETS, the 
requirement acts as “an essential safeguard to emergency temporary standard-setting.” Id. 
at 106. However, the Third Circuit noted that it did not require justification of “every 
substance, type of use or production technique,” but rather a “general explanation” of 
why the standard is necessary. Id. at 107.  
ETSs are, by design, temporary in nature. Under section 6(c)(3), an ETS serves as 
a proposal for a permanent standard in accordance with section 6(b) of the OSH Act 
(permanent standards), and the Act calls for the permanent standard to be finalized within 
six months after publication of the ETS. 29 U.S.C. 655(c)(3); see Fla. Peach Growers 
Ass’n, 489 F.2d at 124. The ETS is effective “until superseded by a standard promulgated 
in accordance with” section 6(c)(3). 29 U.S.C. 655(c)(2).  
Section 6(c)(1) states that the Secretary “shall” provide for an ETS when OSHA 
makes the prerequisite findings of grave danger and necessity. See Pub. Citizen Health 
Research Grp., 702 F.2d at 1156 (noting the mandatory language of section 6(c)). OSHA 
is entitled to great deference in its determinations, and it must also account for “the fact 
that ‘the interests at stake are not merely economic interests in a license or a rate 
structure, but personal interests in life and health.’” Id. (quoting Wellford v. 
Ruckelshaus, 439 F.2d 598, 601 (DC Cir. 1971)).
When OSHA issues a standard pursuant to section 6—whether permanent or an 
ETS—section 18 of the OSH Act provides that OSHA’s standard preempts any state 
occupational safety or health standard “relating to [the same] occupational safety or 
health issue” as the Federal standard. 29 U.S.C. 667(b); see also Gade v. Nat’l Solid 
Wastes Mgmt. Ass’n, 505 U.S. 88, 97 (1992). A state can avoid preemption only if it 
submits, and receives Federal approval for, a state plan for the development and 
enforcement of standards pursuant to section 18 of the Act, which must be “at least as 
effective” as the Federal standards. 29 U.S.C. 667; Indus. Truck Ass’n v. Henry, 125 F.3d 

1305, 1311 (9th Cir. 1997). However, the OSH Act does not preempt state laws of 
“general applicability” that regulate workers and non-workers alike, so long as they do 
not conflict with an OSHA standard. Gade, 505 U.S. at 107.
As discussed in detail elsewhere in this preamble, OSHA has determined that a 
grave danger exists necessitating a new ETS (see Grave Danger and Need for the ETS, 
Sections III.A. and III.B. of this preamble), and that compliance with this ETS is feasible 
for covered employers (see Feasibility, Section IV. of this preamble). OSHA has also 
provided a more detailed explanation of each provision of this ETS in Summary and 
Explanation (Section VI. of this preamble). In addition, OSHA wishes to provide here 
some general guidance on its legal authority to regulate COVID-19 hazards, and for 
particular provisions of this ETS. 
As a threshold matter, OSHA’s authority to regulate workplace exposure to 
biological hazards like SARS-CoV-2 is well-established. Section 6(b)(5) of the OSH Act 
uses similar language to section 6(c)(1)(A): the former sets forth requirements for 
promulgating permanent standards addressing “toxic materials or harmful physical 
agents,” and the latter authorizes OSHA to promulgate an ETS addressing “substances or 
agents determined to be toxic or physically harmful” (as well as “new hazards”). OSHA 
has consistently identified biological hazards similar to SARS-CoV-2, as well as SARS-
CoV-2 itself, to be “toxic materials or harmful physical agents” under the Act. Indeed, in 
its exposure and medical records access regulation, OSHA has defined “toxic materials or 
harmful physical agents” to include “any . . . biological agent (bacteria, virus, fungus, 
etc.)” for which there is evidence that it poses a chronic or acute health hazard. 29 CFR 
1910.1020(c)(13). And in addition to previously regulating exposure to SARS-CoV-2 as 
a new and physically harmful agent in the Healthcare ETS (see, e.g., 86 FR at 32381), 
OSHA has also previously regulated biological hazards like SARS-CoV-2 as health 
hazards under section 6(b)(5), for example in the Bloodborne Pathogens (BBP) standard, 

29 CFR 1910.1030, which addresses workplace exposure to HIV and Hepatitis B. The 
BBP standard was upheld (except as to application in certain limited industries) in 
American Dental Association, which observed that “the infectious character” of the 
regulated bloodborne diseases might warrant “more regulation than would be necessary 
in the case of a noncommunicable disease.” 984 F.2d at 826. In addition, in the preamble 
to the respiratory protection standard, 29 CFR 1910.134, which was also promulgated 
under section 6(b)(5), “OSHA emphasize[d] that [the] respiratory protection standard 
does apply to biological hazards.” Respiratory Protection, 63 FR 1152-01, 1180 (Jan. 8, 
1998) (citing Mahone Grain Corp., 10 BNA OSHC 1275 (No. 77–3041, 1981)).
In addition to being a physically harmful agent covered by section 6(c)(1)(A), 
SARS-CoV-2 is also, without question, a “new hazard” covered by this provision, as 
discussed in more detail in Grave Danger (Section III.A. of this preamble). SARS-CoV-2 
was not known to exist until January 2020, and since then more than 725,000 people have 
died from COVID-19 in the U.S. alone (CDC, October 18, 2021 – Cumulative US 
Deaths).
Turning to specific provisions of this standard, the vaccination requirements in 
this ETS are also well within the bounds of OSHA’s authority. Vaccination can be a 
critical tool in the pursuit of health and safety goals, particularly in response to an 
infectious and highly communicable disease. See, e.g., Jacobson v. Commonwealth of 
Mass., 197 U.S. 11, 27–28 (1905) (recognizing use of smallpox vaccine as a reasonable 
measure to protect public health and safety); Klaassen v. Trustees of Ind. Univ., 7 F.4th 
592, 593 (7th Cir. 2021) (citing Jacobson and noting that vaccination may be an 
appropriate safety measure against SARS-CoV-2 as “[v]accination protects not only the 
vaccinated persons but also those who come in contact with them”). And the OSH Act 
itself explicitly acknowledges that such treatments might be necessary, in some 
circumstances. 29 U.S.C. 669(a)(5) (providing in the Act’s provisions on research and 

related activities conducted by the Secretary of Health and Human Services to aid OSHA 
in its formulation of health and safety standards that “[n]othing in this or any other 
provision of this Act shall be deemed to authorize or require medical examination, 
immunization, or treatment for those who object thereto on religious grounds, except 
where such is necessary for the protection of the health or safety of others.” (emphasis 
added)). In recognition of the health and safety benefits provided by vaccination, OSHA 
has previously exercised its authority to promulgate vaccine-related requirements in the 
COVID-19 Healthcare ETS (29 CFR 1910.502(m)) and the BBP standard (29 CFR 
1910.1030(f)). The BBP standard illustrates congressional understanding that the 
statutory delegation of authority to OSHA to issue standards includes authority for 
vaccine provisions, where appropriate. See Pub. L. 102-170, Title I, Section 100, 105 
Stat. 1107 (1991) (directing OSHA to complete the BBP rulemaking by a date certain, 
and providing that if OSHA did not do so, the proposed rule, which included a vaccine 
provision, would become the final standard).  
Additionally, OSHA’s authority to require employers to bear the costs of 
particular provisions of a standard is solidly grounded in the OSH Act. The Act reflects 
Congress’s determination that the costs of compliance with the Act and OSHA standards 
are part of the cost of doing business and OSHA may foreclose employers from shifting 
those costs to employees. See Am. Textile Mfrs. Inst., 452 U.S. at 514; Phelps Dodge 
Corp. v. OSHRC, 725 F.2d 1237, 1239-40 (9th Cir. 1984); see also Sec’y of Labor v. 
Beverly Healthcare-Hillview, 541 F.3d 193 (3d Cir. 2008). Consistent with this authority, 
OSHA has largely required employers to bear the costs of the provisions of this ETS, 
including the typical costs associated with vaccination. The allocation of vaccination 
costs to employers in this ETS is similar to OSHA’s treatment of vaccine-related costs in 
the COVID-19 Healthcare ETS and the BBP standards. See 29 CFR 1910.502(m), (p); 29 
CFR 1910.1030(f)(1)(ii)(A).  

The OSH Act provides OSHA with discretion, however, to decide whether to 
impose certain costs—such as those related to medical examinations or other tests—on 
employers “[w]here [it determines that such costs are] appropriate.” 29 U.S.C. 655(b)(7). 
OSHA has determined that for purposes of this ETS, it would not be “appropriate” to 
impose on employers any costs associated with COVID-19 testing for employees who 
choose not to be vaccinated. For most of the agency’s existing standards containing 
medical testing and removal provisions, OSHA has found it necessary to impose the costs 
of such provisions on employers in order to remove barriers to employee participation in 
medical examinations that are critical to effectuating the standards’ safety and health 
protections. See United Steelworkers of Am., 647 F.2d at 1229-31, 1237-38. However, as 
explained in greater detail elsewhere in this preamble (see Need for the ETS, Section 
III.B. of this preamble), the ETS’s safety and health protections are best effectuated by 
employee vaccination, not testing. Accordingly, OSHA only requires employers to bear 
the costs of employee compliance with the preferred, and more protective, vaccination 
provision, but not costs associated with testing. The agency does not believe it 
appropriate to impose the costs of testing on an employer where an employee has made 
an individual choice to pursue a less protective option. For the same reasons, OSHA has 
also determined that it is not appropriate to require employers to pay for face coverings 
for employees who choose not to be vaccinated.2
Finally, the Act and its legislative history “both demonstrate unmistakably” 
OSHA’s authority to require employers to temporarily remove workers from the 
workplace to prevent exposure to a health hazard. United Steelworkers of Am., 647 F.2d 
at 1230. And again, this is an authority OSHA has repeatedly exercised in prior 
2 OSHA notes that while the ETS does not impose these testing or face covering costs on employers, in 
some circumstances employers may be required to pay for the costs related to testing and/or face coverings 
by other laws, regulations, or collectively negotiated agreements. OSHA has no authority under the OSH 
Act to determine whether such obligations under other laws, regulations, or agreements might exist.

standards, including in: COVID-19 Healthcare ETS (29 CFR 1910.502); Lead (29 CFR 
1910.1025); Cadmium (29 CFR 1910.1027); Benzene (29 CFR 1910.1028); 
Formaldehyde (29 CFR 1910.1048); Methylenedianiline (29 CFR 1910.1050); Methylene 
Chloride (29 CFR 1910.1052); and Beryllium (29 CFR 1910.1024). It is equally 
appropriate to impose that obligation here.
For all of these reasons, as well as those explained more fully in other areas of 
this preamble, OSHA has the authority—and obligation—to promulgate this ETS.
References: 
Centers for Disease Control and Prevention (CDC). (2021, October 18). COVID Data 
Tracker. https://covid.cdc.gov/covid-data-tracker/. (CDC, October 18, 2021)
III. Rationale for the ETS
A. Grave Danger
I. Introduction.
Section 6(c)(1) of the OSH Act requires the Secretary to issue an ETS in 
situations where employees are exposed to a “grave danger” and immediate action is 
necessary to protect those employees from such danger (29 U.S.C. 655(c)(1)). Consistent 
with its legal duties, OSHA is issuing this ETS to address the grave danger posed by 
occupational exposure to SARS-CoV-2, the virus that causes COVID-19.3 OSHA has 
determined that occupational exposure to SARS-CoV-2, including the Delta variant 
(B.1.617.2 and AY lineages), presents a grave danger to unvaccinated workers in the 
U.S., with several exceptions explained below.4 This finding of grave danger is based on 
the science of how the virus spreads, the transmissibility of the disease in workplaces, 
3 OSHA is defining the grave danger as workplace exposure to SARS-CoV-2, the virus that causes the 
development of COVID-19. COVID-19 is the disease that can occur in people exposed to SARS-CoV-2, 
and that leads to the health effects described in this section. This distinction applies despite OSHA’s use of 
the terms SARS-CoV-2 and COVID-19 interchangeably in some parts of this preamble.
4 OSHA refers to the grave danger from occupational exposure to SARS-CoV-2 throughout this document.  
Those references are intended to encompass exposure to SARS-CoV-2 and all variants of SARS-CoV-2, 
including the Delta variant.

and the serious adverse health effects, including death, that can be suffered by those who 
are diagnosed with COVID-19. The protections of this ETS—which will apply, with 
some limitations, to a broad range of workplace settings where exposure to SARS-CoV-2 
may occur—are designed to protect employees from infection with SARS-CoV-2 and 
from the dire, sometimes fatal, consequences of such infection. 
The fact that COVID-19 is not a uniquely work-related hazard does not change 
the determination that it is a grave danger to which employees are exposed, nor does it 
excuse employers from their duty to protect employees from the occupational 
transmission of SARS-CoV-2. The OSH Act is intended to “assure so far as possible 
every working man and woman in the Nation safe and healthful working conditions” (29 
U.S.C. 651(b)), and there is nothing in the Act to suggest that its protections do not 
extend to hazards which might occur outside of the workplace as well as within. Indeed, 
COVID-19 is not the first hazard that OSHA has regulated that occurs both inside and 
outside the workplace. For example, the hazard of noise is not unique to the workplace, 
but the Fourth Circuit has upheld OSHA’s Occupational Noise Exposure standard (29 
CFR § 1910.95) (Forging Industry Ass’n v. Sec’ of Labor, 773 F.2d 1437, 1444 (4th Cir. 
1985)). Diseases caused by bloodborne pathogens, including HIV/AIDS and hepatitis B, 
are also not unique to the workplace, but the Seventh Circuit upheld the majority of 
OSHA’s Bloodborne Pathogens standard (29 CFR § 1910.1030) (Am. Dental Ass’n v. 
Martin, 984 F.2d 823 (7th Cir. 1993)). OSHA’s Sanitation standard, 29 CFR 1910.141, 
which requires measures such as cleaning, waste disposal, potable water, toilets, and 
washing facilities, addresses hazards that exist everywhere – both within and outside of 
workplaces. Moreover, employees have more freedom to control their environment 
outside of work, and to make decisions about their behavior and their contact with others 
to better minimize their risk of exposure. However, during the workday, while under the 
control of their employer, workers may have little ability to limit contact with coworkers, 

clients, members of the public, patients, and others, any one of whom could represent a 
source of exposure to SARS-CoV-2. OSHA has a mandate to protect employees from 
hazards they are exposed to at work, even if they may be exposed to similar hazards 
outside of work.
As described above in Pertinent Legal Authority (Section II. of this preamble), 
“grave danger” indicates a risk that is more than “significant” (Int’l Union, United Auto., 
Aerospace, & Agr. Implement Workers of Am., UAW v. Donovan, 590 F. Supp. 747, 755-
56 (D.D.C. 1984); Indus. Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S. 607, 
640 n.45, 655 (1980) (stating that a rate of 1 worker in 1,000 workers suffering a given 
health effect constitutes a “significant” risk)). “Grave danger,” according to one court, 
refers to “the danger of incurable, permanent, or fatal consequences to workers, as 
opposed to easily curable and fleeting effects on their health” (Fla. Peach Growers Ass’n, 
Inc. v. U. S. Dep’t of Labor, 489 F.2d 120, 132 (5th Cir. 1974)). Fleeting effects were 
described as nausea, excessive salivation, perspiration, or blurred vision and were 
considered so minor that they often went unreported; these effects are in stark contrast 
with the adverse health effects of COVID-19 infections, which are formally referenced as 
ranging from “mild” to “critical,”5 but which can involve significant illness, hospital 
stays, ICU care, death, and long-term health complications for survivors.  Beyond this, 
however, “the determination of what constitutes a risk worthy of Agency action is a 
policy consideration that belongs, in the first instance, to the Agency” (Asbestos Info. 
Ass’n/N. Am. v. OSHA, 727 F.2d 415, 425 (5th Cir. 1984)). 
In the context of ordinary 6(b) rulemaking, the Supreme Court has said that the 
OSH Act is not a “mathematical straitjacket,” nor does it require the agency to support its 
findings “with anything approaching scientific certainty,” particularly when operating on 
5 See the definitions for the different levels of severity of COVID-19 illness in the National Institutes of 
Health’s COVID-19 treatment guidelines (NIH, October 12, 2021).

the “frontiers of scientific knowledge” (Indus. Union Dep’t, AFL-CIO v. Am. Petroleum 
Inst., 448 U.S. 607, 655-56 (1980)). Courts reviewing OSHA’s determination of grave 
danger do so with “great deference” (Pub. Citizen Health Research Grp. v. Auchter, 702 
F.2d 1150, 1156 (DC Cir. 1983)). In one case, the Fifth Circuit, in reviewing an OSHA 
ETS for asbestos, declined to question the agency’s finding that 80 worker lives at risk 
nationwide over six months constituted a grave danger (Asbestos Info. Ass’n/N. Am., 727 
F.2d at 424). OSHA estimates that this ETS would save over 6,500 worker lives and 
prevent over 250,000 hospitalizations over the course of the next six months (OSHA, 
October 2021c). Here, the mortality and morbidity risk to employees from COVID-19 is 
so dire that the grave danger from exposures to SARS-CoV-2 is clear. 
SARS-CoV-2 is both a physically harmful agent and a new hazard (see 29 U.S.C. 
655(c)(1)(A)). The majority of OSHA’s previous ETSs addressed toxic substances that 
had been familiar to the agency for many years prior to issuance of the ETS. OSHA’s 
Healthcare ETS, issued in response to COVID-19 earlier this year, is one notable 
exception. In most cases, OSHA’s ETSs were issued in response to new information 
about substances that had been used in workplaces for decades (e.g., Vinyl Chloride (39 
FR 12342 (April 5, 1974)); Benzene (42 FR 22516 (May 3, 1977)); 1,2-Dibromo-3-
chloropropane (42 FR 45536 (Sept. 9, 1977))). In some cases, the hazards of the toxic 
substance were already so well established that OSHA promulgated an ETS simply to 
update an existing standard (e.g., Vinyl cyanide (43 FR 2586 (Jan. 17, 1978))). The 
COVID-19 Healthcare ETS, which was issued in June 2021, was the sole instance in 
which OSHA issued an ETS to address a grave danger from a substance that had only 
recently come into existence. Although that action by the agency was challenged, the 
case has not gone to briefing (see United Food & Commercial Workers Int’l Union, AFL-
CIO, CLC and AFL-CIO v. OSHA, Dep’t of Labor, D.C. Circuit No. 21-1143). Thus, no 
court has had occasion to examine OSHA’s authority under section (6)(c) of the OSH Act 

(29 U.S.C. 655(c)) to address a grave danger from a “new hazard.” Yet by any measure, 
SARS-CoV-2 is a new hazard. Unlike any of the hazards addressed in previous ETSs, 
there were no documented cases of SARS-CoV-2 infections in the United States until 
January 2020. Since then, more than 725,000 people have died in the U.S. alone (CDC, 
October 18, 2021 – Cumulative US Deaths). The pandemic continues to affect workers 
and workplaces, with workplace exposures leading to further exposures among workers’ 
families and communities. Clearly, SARS-CoV-2 is both a physically harmful agent and 
a new hazard that presents a grave danger to workers in the U.S.
Published on June 21, 2021, OSHA’s Healthcare ETS (86 FR 32376) was written 
in response to the grave danger posed to healthcare workers in the United States who 
faced a heightened risk of infection from COVID-19. In the healthcare ETS, OSHA 
described its finding of grave danger for healthcare and healthcare support service 
workers (see 86 FR 32381-32412).  OSHA now finds that all unvaccinated workers, with 
some exceptions, face a grave danger from the SARS-CoV-2 virus.6
II. Nature of the Disease.
The health effects of symptomatic COVID-19 illness can range from mild disease 
consisting of fever or chills, cough, and shortness of breath to severe disease. Severe 
cases can involve respiratory failure, blood clots, long-term cardiovascular and 
neurological effects, and organ damage, which can lead to hospitalization, ICU 
admission, and death (see 86 FR 32383-32388; NINDS, September 2, 2021). Even in the 
short time since the Healthcare ETS’s publication in June 2021, the risk posed by 
COVID-19 has changed meaningfully. Since OSHA considered the impact of COVID-19 
when promulgating the Healthcare ETS, over 135,000 additional Americans have died 
from COVID-19, and over 933,000 have been hospitalized, (CDC, October 18, 2021 – 
6 When OSHA refers to “unvaccinated” individuals in its grave danger finding, it means all individuals who 
are not fully vaccinated against COVID-19, i.e., those who are completely unvaccinated and those who are 
partially vaccinated.

Cumulative US Deaths; CDC, May 28, 2021; CDC, October 18, 2021 – Weekly Review). 
In August 2021, COVID-19 was the third leading cause of death in the United States, 
trailing only heart disease and cancer (Ortaliza et al., August 27, 2021). By September 
20, 2021, COVID-19 had killed as many Americans as the 1918-1919 flu pandemic 
(Johnson, September 20, 2021). 
While the Healthcare ETS addresses the risk of illness and death from COVID-19 
as the SARS-CoV-2 virus continues to change over time, it does not specifically address 
the increases in infectiousness and transmission, and the potentially more severe health 
effects, related to the Delta variant. The rapid rise to predominance of the Delta variant in 
the U.S. occurred shortly after the ETS was published. At this time, the widespread 
prevalence of the Delta variant and its increased transmissibility have resulted in 
increased risk of exposure and disease relative to the previously-dominant strains of the 
SARS-CoV-2 virus. Adding to the information covered in the Healthcare ETS, the 
following sections provide a brief review of SARS-CoV-2 and describe the 
characteristics of the Delta variant that are different from previous versions of SARS-
CoV-2 and have changed the risks posed by COVID-19. The agency specifically 
references the material presented in the Healthcare ETS, which is still relevant to this 
analysis, to support OSHA’s finding of grave danger. Taken together, the information 
available to OSHA demonstrates that SARS-CoV-2 poses a grave danger to unvaccinated 
workers across all industry sectors. 
a. Variants of SARS-CoV-2.
Viral mutations have been a serious concern of scientists, public health experts, 
and policymakers from the beginning of the COVID-19 pandemic. Viral mutations can 
affect how a virus interacts with a cell – altering the virus’s transmissibility, infection 
severity, and sensitivity to vaccines. The U.S. government’s SARS-CoV-2 Interagency 
Group has a variant classification scheme that defines four classes of SARS-CoV-2 

variants: Variants Being Monitored (VBM), Variants of Interest (VOI), Variants of 
Concern (VOC), and Variants of High Consequence (VOHC). These variant designations 
are based on their “proportions at the national and regional levels and the potential or 
known impact of the constellation of mutations on the effectiveness of medical 
countermeasures, severity of disease, and ability to spread from person to person” (CDC, 
October 4, 2021), with VOIs considered less serious than VOCs and VOCs considered 
less serious than VOHCs. As of early October 2021, the CDC was monitoring 10 VBMs 
– Alpha (B.1.1.7, Q.1-Q.8), Beta (B.1.351, B.1.351.2, B.1.351.3), Gamma (P.1, P.1.1, 
P.1.2), Epsilon (B.1.427 and B.1.429), Eta (B.1.525), Iota (B.1.526), Kappa (B.1.617.1), 
B.1.617.3, Mu (B.1.621, B.1.621.1), and Zeta (P.2) – and one VOC – Delta (B.1.617.2 
and AY.1 sublineages) – in the U.S. (CDC, October 4, 2021). CDC defines a VOC as “[a] 
variant for which there is evidence of an increase in transmissibility, more severe disease 
(e.g., increased hospitalizations or deaths), significant reduction in neutralization by 
antibodies generated during previous infection or vaccination, reduced effectiveness of 
treatments or vaccines, or diagnostic detection failures” (CDC, October 4, 2021).
While the proportions of SARS-CoV-2 variants in the United States have shifted 
over time (CDC, May 24, 2021c; CDC, October 18, 2021 – Variant Proportions, July 
through October 2021), the primary variant that drove COVID-19 transmission in the late 
Winter and Spring of 2021 was the Alpha variant. The CDC noted that Alpha is 
associated with an increase in transmission, as well as potentially increased incidences of 
hospitalization and death, compared to the predominant variants before its emergence 
(CDC, October 4, 2021; Pascall et al., August 24, 2021; Julin et al., September 22, 2021). 
As Alpha transmission subsided in the United States during the late Spring and early 
Summer of 2021, Delta emerged and quickly became the predominant variant in the U.S. 
by July 3, 2021 (CDC, October 18, 2021 – Variant Proportions, July through October 

2021). Delta now accounts for more than 99% of circulating virus nationwide (CDC, 
October 18, 2021 – Variant Proportions, July through October 2021).
FDA authorized and approved COVID-19 vaccines currently work well against 
all of these variants; however, there are differences in various variants’ ability to spread 
and the likelihood of infection to cause severe illness. Data on the Beta and Gamma 
variants do not indicate that infections from these variants caused more severe illness or 
death than other VOCs. Data on the Alpha variant does indicate its ability to cause more 
severe illness and death in infected individuals. And some data on the Delta variant 
suggests that the Delta variant may cause more severe illness than previous variants, 
including Alpha, in unvaccinated individuals (CDC, October 4, 2021). 
The emergence of the Delta variant, along with other VOCs, has resulted in a 
more deadly pandemic (Fisman and Tuite, July 12, 2021). While the Delta variant is the 
most transmissible SARS-CoV-2 variant to date, the possibility remains for the rise of 
future VOCs, and even more dangerous VOHCs, as the virus continues to spread and 
mutate. Inadequate vaccination rates and the abundance of transmission create an 
environment that can foster the development of new variants that could be similarly, or 
even more, disruptive (Liu and Rocklov, August, 4, 2021). In this context, it is critical 
that OSHA address the grave danger from COVID-19 that unvaccinated workers are 
currently facing by requiring vaccination and the other measures included in this rule, in 
order to significantly slow the transmission of COVID-19 in workers and workplaces and 
mitigate the rise of future variants.
b. Transmission. 
SARS-CoV-2 is a highly transmissible virus, regardless of variant. Since the first 
case was detected in the U.S., there have been close to 45 million reported cases of 
COVID-19, affecting every state and territory, with thousands more infected each day 
(CDC, October 18, 2021 – Cumulative US Cases), and some indication that these 

numbers continue to underestimate the full burden of disease (CDC, July 27, 2021). 
According to the CDC, the primary way the SARS-CoV-2 virus spreads from an infected 
person to others is through the respiratory droplets that are produced when an infected 
person coughs, sneezes, sings, talks, or breathes (CDC, May 7, 2021). Infection could 
then occur when another person breathes in the virus. Most commonly this occurs when 
people are in close contact with one another in indoor spaces (within approximately six 
feet for at least fifteen minutes) (CDC, August 13, 2021). Additionally, airborne 
transmission may occur in indoor spaces without adequate ventilation where small 
respiratory particles are able to remain suspended in the air and accumulate (CDC, May 
7, 2021; Fennelly, July 24, 2020). While scientists’ understanding of the Delta variant’s 
virology is evolving and remains at the frontier of science, current data shows that the 
routes of transmission remain the same for all currently-identified SARS-CoV-2 variants. 
In addition, all variants can be transmitted by people who are pre-symptomatic (i.e., 
people who are infected but do not yet feel sick) or asymptomatic (i.e., people who are 
infected but never feel any symptoms of COVID-19), as well as those who are 
symptomatic. Pre-symptomatic and asymptomatic transmission continue to pose serious 
challenges to containing the spread of COVID-19. For more extensive information on 
transmission routes, as well as pre-symptomatic and asymptomatic transmission, see the 
preamble to the Healthcare ETS (86 FR 32392-32396), which is hereby included in the 
record of this ETS.7 
The Delta variant is transmitted from infectious individuals via the same routes as 
previous variants, but is much more transmissible. Specifically, Delta differs from 
previous dominant variants of SARS-CoV-2 in terms of the amplification of viral 
particles expelled from infected individuals. Testing of Delta-infected individuals 
7 This adoption includes the citations in the referenced section of the Healthcare ETS, which are also 
included in the docket for this ETS.

indicates that their viral loads are – on average – approximately 1,000x greater than those 
of the SARS-CoV-2 variants from the first COVID-19 wave in early 2020. This finding 
suggests much faster replication of viral particles during early infection with the Delta 
variant, resulting in greater infectiousness (contagiousness) when compared to earlier 
versions of SARS-CoV-2 (Li et al., July 12, 2021). 
The transmissibility of viruses is measured in part by the average number of 
subsequently-infected people (or secondary cases) that are expected to occur from each 
existing case (often referred to as R0). Several comparisons of the transmissibility of the 
initial SARS-CoV-2 variants to the Delta variant have shown that Delta is approximately 
twice as transmissible (contagious) as previous versions of SARS-CoV-2 (CDC, August 
26, 2021; Riou and Althaus, January 30, 2020; Li et al., July 12, 2021; Liu and Rocklov, 
August, 4, 2021), likely the result of higher initial viral loads during the pre-symptomatic 
phase (Li et al., July 12, 2021). In addition, as described further below, data on Delta 
shows that both unvaccinated and vaccinated individuals are more likely to transmit Delta 
than previous variants (Liu and Rocklov, August, 4, 2021; Eyre et al., September 29, 
2021), making it especially dangerous to those who remain unvaccinated.
c. Health Effects.
COVID-19 infections can lead to death. As reported in the Healthcare ETS, by 
May 24, 2021, there had been 587,432 deaths and 32,947,548 million infections in the 
U.S. alone (CDC, May 24, 2021a; CDC, May 24, 2021b). At that point in the pandemic, 
1.8 out of every 1,000 people in the U.S. had died from COVID-19 (CDC, May 24, 
2021a). Since then, reported cases have increased to 44,857,861 and the number of deaths 
has increased to 723,205 (CDC, October 18, 2021– Cumulative US Cases; Cumulative 
US Deaths). By September 2021, an astounding 1 in 500 Americans had died from 

COVID-19 (Keating, September 15, 2021). Updated mortality data8 currently indicate 
that people of working age (18-64 years old) now have a 1 in 202 chance of dying when 
they contract the disease, with the risk much higher (1 in 72) for those aged 50-64 (CDC, 
October 18, 2021 – Demographic Trends, Cases by Age Group; CDC, October 18, 2021 -  
Demographic Trends, Deaths by Age Group). For a more in-depth description of the 
health effects resulting from SARS-CoV-2 infection, see the preamble to the Healthcare 
ETS (86 FR 32383-32392), which is hereby included in the record of this ETS.9
Apart from fatal cases, COVID-19 can cause serious illness, including long-
lasting effects on health. Many patients who become ill with COVID-19 require 
hospitalization. Indeed, updated CDC hospitalization and mortality data indicate that 
working age Americans (18-64 years old) now have a 1 in 14 chance of hospitalization 
when infected with COVID-19 (CDC, October 18, 2021 – Demographic Trends, Cases 
by Age; Total Hospitalizations, by Age). Those who are hospitalized frequently need 
supplemental oxygen and treatment for the disease’s most common complications, which 
include pneumonia, respiratory failure, acute respiratory distress syndrome (ARDS), 
acute kidney injury, sepsis, myocardial injury, arrhythmias, and blood clots. One study, 
which included 35,502 inpatients nationwide, determined that the median length of 
hospital stay was 6 days, unless the cases required ICU treatment. For those cases, ICU 
stays were on median 5 days in addition to the time spent hospitalized outside of the ICU 
(Rosenthal et al., December 10, 2020). Another study that assessed hospital length of stay 
for COVID-19 patients in England estimated that a non-ICU hospital stay averaged 
between 8 and 9 days, but those estimates ranged from approximately 12 to 18 days when 
patients were admitted to the ICU (Vekaria et al., July 22, 2021). Moreover, given that 
8 Risk of death is based on averages from reported CDC data. Risks of hospitalization and death are much 
higher in unvaccinated individuals, as discussed further in Grave Danger, Section III.A.IV. Vaccines 
Effectively Reduce Severe Health Outcomes from and Transmission of SARS-CoV-2. 
9 This adoption includes the citations in the referenced section of the Healthcare ETS, which are also 
included in the docket for this ETS.

SARS-CoV-2 is still a novel virus, the severity of long-term health effects – such as 
“post-COVID conditions” – are not yet fully understood. 
Many members of the workforce are at increased risk of death and severe disease 
from COVID-19 because of their age or pre-existing health conditions. The comorbidities 
that further exacerbate COVID-19 infections are common among adults of working age 
in the U.S. For instance, 46.1% of individuals with cancer are in the 20-64 year old age 
range (NCI, April 29, 2015), and over 40% of working age adults are obese (Hales et al., 
February 2020). Disease severity is also likely exacerbated by long-standing healthcare 
inequities experienced by members of many racial and economic demographics (CDC, 
April 19, 2021). 
Recent data suggests that Delta variant infections may result in even more severe 
illness and a higher frequency of death than previous COVID-19 variants due to Delta’s 
increased transmissibility, virulence, and immune escape (Fisman and Tuite, July 12, 
2021). Symptomatic Delta variant infections do occur in fully vaccinated people 
(Mlcochova et al., June 22, 2021; Musser et al., July 22, 2021); however, as reported by 
the CDC (CDC, August 26, 2021), the vast majority of the continuing instances of severe 
and fatal COVID-19 infections are occurring in unvaccinated persons (discussed further 
in Grave Danger, Section III.A.IV. Vaccines Effectively Reduce Severe Outcomes from 
and Transmission of SARS-CoV-2). An assessment of Delta-related hospital admissions 
in Scotland found that hospitalizations were approximately doubled in patients with the 
Delta variant when compared to the Alpha variant (Sheikh et al., June 4, 2021). A similar 
study conducted using a retrospective cohort in Ontario, Canada compared the virulence 
of novel SARS-CoV-2 variants and found that the incidences of hospitalization, ICU 
admission, and death were more pronounced with the Delta variant than any other SARS-
CoV-2 variant (Fisman and Tuite, July 12, 2021). A large national cohort study that 
included all Alpha and Delta SARS-CoV-2 patients in England between March 29 and 

May 23, 2021 found a “higher hospital admission or emergency care attendance risk for 
patients with COVID-19 infected with the Delta variant compared with the Alpha 
variant,” suggesting that Delta outbreaks – especially amongst unvaccinated populations 
– may lead to  more severe health consequences and an equivalent or greater burden on 
healthcare services than the Alpha variant (Twohig et al., August 27, 2021).  However, 
one more recent study examining data from several U.S. states demonstrated a significant 
increase in hospitalization from the pre-Delta to the Delta period, which may be related to 
increased transmissibility of Delta rather than more severe health outcomes (Taylor et al., 
October 22, 2021).
III. Impact on the Workplace. 
SARS-CoV-2 is readily transmissible in workplaces because they are areas where 
multiple people come into contact with one another, often for extended periods of time. 
When employees report to their workplace, they may regularly come into contact with 
co-workers, the public, delivery people, patients, and any other people who enter the 
workplace. Workplace factors that exacerbate the risk of transmission of SARS-CoV-2 
include working in indoor settings, working in poorly-ventilated areas, and spending 
hours in close proximity with others. Full-time employees typically spend 8 hours or 
more at work each shift, more time than they spend anywhere else but where they live. 
Employees work in proximity to others in workplaces that were not originally designed to 
keep people six feet away from other people and that may make it difficult for employees 
to perform work tasks while maintaining a six-foot distance from others. Even in the 
cases where workers can do most of their work from, for example, a private office within 
a workplace, they share common areas like hallways, restrooms, lunch rooms and 
meeting rooms. Furthermore, many work areas are poorly ventilated (Allen and Ibrahim, 
May 25, 2021; Lewis, March 30, 2021). An additional factor that exacerbates the risk of 
transmission of SARS-CoV-2 is interacting with or caring for people with suspected or 

confirmed COVID-19; this was a primary driver of OSHA’s determination of grave 
danger for healthcare workers in the Healthcare ETS (see 86 FR 32381-32383). In recent 
weeks, the majority of states in the U.S. have experienced what CDC defines as “high or 
substantial community transmission,” indicating that there is a clear risk of the virus 
being introduced into and circulating in workplaces (CDC, October 18, 2021 – 
Community Transmission Rates).
Although COVID-19 is not exclusively an occupational disease, it is evident from 
research accrued since the beginning of the pandemic that SARS-CoV-2 transmission can 
and does occur in workplaces, affecting employees and their lives, health, and 
livelihoods. This continues to be true for the Delta variant, with its increased 
transmissibility and potentially more severe health effects. This section describes some of 
the clusters, outbreaks, and other occurrences of workplace COVID-19 cases that 
government agencies, researchers, and journalists have described, and the widespread 
effects of SARS-CoV-2 in industry sectors across the national economy. While the focus 
is on more recent data reflecting the impact of the Delta variant, evidence of workplace 
transmission that occurred prior to the emergence of the Delta variant is also presented. 
The workplace-based clusters described below provide evidence that workplaces 
in a wide range of industries have been affected by COVID-19, that many employees 
face exposure to infected people in their workspaces, and that SARS-CoV-2 transmission 
is occurring in the workplace, including during the recent period where the Delta variant 
has predominated. Although the presence of a cluster on its own does not necessarily 
establish that the cluster is work-related (i.e., a result of transmission at the worksite), 
many state investigation reports and published studies provide evidence that transmission 
is work related by documenting that infections at a workplace occurred within 14-days 
(the incubation period for the virus) of each other and ruling out the possibility that 
transmission occurred outside the workplace. In addition, the information below 

demonstrates that exposures to SARS-CoV-2 happen regularly in a wide variety of 
different types of workplaces. 
The basis for OSHA’s grave danger finding is that employees can be exposed to 
the virus in almost any work setting; that exposure to SARS-CoV-2 can lead to infection 
(CDC, September 21, 2021); and that infection in turn can cause death or serious 
impairment of health, especially in those who are unvaccinated (see Section III.A.IV. 
Vaccines Effectively Reduce Severe Health Outcomes from and Transmission of SARS-
CoV-2). The information described in this section supports OSHA’s finding that 
employees who work in spaces shared by others are at risk of exposure to SARS-CoV-2. 
The degree of risk from droplet-based transmission may vary based on the duration of 
close proximity to a person infected with SARS-CoV-2, including the Delta variant, but 
the simple and brief act of sneezing, coughing, talking, or even breathing can 
significantly increase the risk of transmission if controls are not in place. SARS-CoV-2, 
including the Delta variant, might also be spread through airborne particles under certain 
conditions, particularly in enclosed settings with inadequate ventilation, which are 
common characteristics of some workplaces.
The peer-reviewed scientific journal articles, government reports, and news 
articles described below establish the widespread prevalence of COVID-19 among 
employees, beginning with a description of the recent impact from the Delta variant. 
OSHA’s findings are based primarily on the evidence from peer-reviewed scientific 
journal articles and government reports. However, peer review for scientific journal 
articles and the assembly of information for government reports and other official sources 
of information take time, and therefore those sources do not always reflect the most up-
to-date information (Chan et al., December 14, 2010). In addition, while state and local 
health departments can report workplace outbreaks to CDC, the agency does not provide 
summary statistics by workplace so that those outbreaks can be tracked on a national 

level. In the context of the COVID-19 pandemic, given the recent impacts due to the 
Delta variant and the emergence of new information on a daily basis, it is critical for 
OSHA to rely on the most up-to-date information available. Therefore, OSHA has 
occasionally supplemented peer-reviewed data and government reports with additional 
information on occupational outbreaks contained in other sources of media (e.g., 
newspapers, digital media, and information submitted to or obtained by private 
organizations).10 The reported information from other sources can provide further 
evidence of the impact of an emerging and changing disease, especially for industries that 
are not well represented in the peer-reviewed scientific literature. Together, these sources 
of information represent the best available evidence of the impact on employees of the 
pandemic thus far.
The information described herein illustrates a significant number of infections 
among employees in a variety of industries, with virtually every state continuing to 
experience what CDC defines as high or substantial community transmission related to 
the recent surge of the Delta variant. The industries and types of workplaces described 
are not the only ones in which a grave danger exists. The science of transmission does not 
vary by industry or by type of workplace. OSHA therefore expects transmission to occur 
in diverse workplaces all across the country (see Dry Color Mfrs. Ass’n, Inc. v. Dep’t of 
Labor, 486 F.2d 98, 102 n.3 (3d Cir. 1973) (holding that when OSHA determines a 
substance poses a grave danger to workers, OSHA can assume an exposure to a grave 
danger exists wherever that substance is present in a workplace)). In addition, the severity 
of COVID-19 does not depend on where an employee is infected; an employee exposed 
to SARS-CoV-2 might die whether exposed while working at a meat packing facility, a 
retail establishment, or an office (see Grave Danger, Section III.A.V.b. Employees Who 
10 OSHA did not make findings based solely on non-peer-reviewed sources such as news articles, but the 
agency found that those sources can sometimes provide useful information when considered with more 
robust sources.

Work Exclusively Outside, below, for a discussion of the risk of exposure in outdoor 
workplaces). 
a. General Impact on Workers.
Data on SARS-CoV-2 infections, illnesses, and deaths among employees in 
general industry, agriculture, construction, and maritime support OSHA’s finding that 
COVID-19 poses a grave danger to employees in these sectors across the U.S. economy. 
This section summarizes studies and reports of COVID-19 illness and fatalities in a wide 
range of workplaces across those industry sectors. Not all workplace settings are 
discussed; nor is the data available to do so. However, the characteristics of the various 
affected workplaces – such as indoor work settings; contact with coworkers, clients, or 
members of the public; and sharing space with others for prolonged periods of time – 
indicate that exposures to SARS-CoV-2 are occurring in a wide variety of work settings 
across all industries. Therefore, most employees who work in the presence of other 
people (e.g., co-workers, customers, visitors) need to be protected.
While there is no comprehensive source of nationwide workplace infection data, 
reports from states and communities on outbreaks related to workplaces provide key, up-
to-date data that illustrate the likelihood of employee exposure to SARS-CoV-2 at 
workplaces throughout the U.S. OSHA identified a number of recent reports from various 
regions of the country that together demonstrate the impact that SARS-CoV-2 can have 
on a variety of workplaces, including in service industries (e.g., restaurants, grocery and 
other retail stores, fitness centers, hospitality, casinos, salons), corrections, warehousing, 
childcare, schools, offices, homeless shelters, transportation, mail/shipping/delivery 
services, cleaning services, emergency services/response, waste management, 
construction, agriculture, food packaging/processing, and healthcare. Deaths are reported 
in many studies performed prior to the emergence of the Delta variant but, because the 
Delta outbreak is so recent and deaths can occur weeks after infection, the number of 

deaths from recent infections might be underestimated. Some of the reports include 
cumulative data representing various phases of the pandemic, beginning prior to the 
availability of vaccines and continuing through the recent surge of the Delta variant. In 
addition, some studies report investigations of recent outbreaks, which provide insight on 
the impact of the Delta variant as well as impacts associated with the current vaccination 
status of workers. 
The Washington State Department of Health (WSDH) reports outbreaks occurring 
in non-healthcare workplaces (WSDH, September 8, 2021). In non-healthcare 
workplaces, outbreaks are defined as two or more laboratory confirmed cases of COVID-
19, with at least two cases reporting symptom onset within 14 days of each other, and 
plausible epidemiological evidence of transmission in a shared location other than a 
household. As of September 4, 2021, WSDH reported 5,247 outbreaks in approximately 
40 different types of non-healthcare work settings. During the week of August 29 through 
September 4, 2021, WSDH identified 137 separate workplace outbreaks. The types of 
non-medical workplace settings that represented more than 5% of the total outbreaks 
during that week included food service/restaurants, childcare, schools, retail, grocery, and 
shelter/homeless services. Other types of non-healthcare settings where outbreaks 
occurred recently included non-food and food manufacturing, construction, professional 
services/office based, agriculture/produce packing, transportation/shipping delivery, 
government agencies/facilities, leisure hospitality/recreation, corrections, utilities, 
warehousing, facility/domestic cleaning services, youth sports/activities, camps, and 
public safety. Over the course of the pandemic, outbreaks have also been observed at 
bars/nightclubs, hotels, and fishing/commercial seafood vessels. 
The Oregon Health Authority (OHA) publishes a weekly report detailing 
outbreaks directly related to work settings. OHA epidemiologists consider cases to be 
part of a workplace outbreak when clusters form with respect to space and time, within a 

plausible incubation period for the virus, and their investigation does not uncover an 
alternative source for the outbreak. For privacy reasons, OHA only reports outbreaks with 
5 or more cases in workplaces with 30 or more people. OHA reported a total of 26,013 
cases and 135 deaths related to workplace outbreaks as of September 1, 2021. As of 
September 1, 2021, OHA was investigating more than 124 active workplace outbreaks 
(OHA, September 1, 2021). Those outbreaks occurred in a wide variety of industries 
including correctional facilities, emergency services, waste management, schools and 
child care, retail and grocery stores, restaurants, warehousing, agriculture, food 
processing/packaging, construction, healthcare, mail and delivery services, office 
locations, utilities, transportation, and others. 
Tennessee Department of Health was investigating 557 active COVID-19 clusters 
as of September 8, 2021 (TDH, September 8, 2021). Clusters are defined as two or more 
laboratory confirmed COVID-19 cases linked to the same location or event that is not a 
household exposure. The clusters occurred in 13 types of settings, 10 of which were 
workplace settings. Outbreaks at workplaces represented more than half of the total 
active outbreaks in the state at that time. Settings comprising more than 5% of total 
clusters included assisted care living facilities, nursing homes, and correctional facilities. 
Other types of workplaces where outbreaks occurred included bars, construction, farms, 
homeless shelters, and industrial settings. 
The North Carolina Department of Health and Human Services reports 
cumulative numbers of clusters, cases, and deaths for workers in poultry processing 
facilities (beginning in April of 2020) and other types of workplaces (beginning in May 
of 2020) (NCDHHS, August 30, 2021). Clusters are defined as a minimum of 5 cases 
with illness onset or initial positive results within a 14-day period and plausible 
epidemiological linkage between the cases. Plausible epidemiological linkage means that 
multiple cases were in the same general setting during the same time period (e.g., same 

shift, same physical area) and that a more likely source of exposure is not identified (e.g., 
household contact or close contact to a confirmed case in another setting). During that 
time period of April/May 2020 through August 30, 2021, workplaces11 were associated 
with nearly 80% of the 1,969 clusters and 27,097 cases observed and nearly 40% of the 
167 deaths related to the clusters. Cumulative numbers of cluster-associated deaths were 
highest in meat and poultry processing (25 of 5,351 cases), followed by healthcare (10 of 
1,036 cases), government services and manufacturing (5 of 1,048 cases and 5 of 1,856 
cases, respectively), and restaurants and childcare (3 of 421 cases and 3 of 1,943 cases, 
respectively). Recently, in July of 2021, the number of cases associated with workplace 
clusters began increasing in several different types of work settings, including meat 
processing, manufacturing, retail, restaurants, childcare, schools, and higher education. 
Colorado Department of Public Health & Environment/Colorado State 
Emergency Operations Center (CDPHE/CSEOC, September 8, 2021) reported 5,584 
resolved workplace-related outbreaks involving 40,156 employee cases and 79 employee 
deaths since May of 2020. The agency’s current investigations, as of September 8, 2021 
included 291 active outbreaks (not defined), with 2,865 staff cases (assumed to be cases 
in employees). The majority of active outbreaks were reported in childcare, schools, 
healthcare, and corrections. Active outbreaks were also reported in construction, retail, 
homeless shelters, casinos, restaurants, hotels, offices, law enforcement, manufacturing, 
delivery services, and warehouses. Other types of work settings that were affected in 
resolved outbreaks included warehouses, bars, government locations, waste management, 
utilities, salons, emergency services, meat processing/packaging, and postal services. 
From June 21, 2021 (the date the healthcare ETS was published) through September 8, 
11 NCDHHS identifies a “workplace” category in their report (e.g., agriculture, construction), but OSHA 
includes other settings where employees would be present (e.g., retail, restaurants, childcare, healthcare). 

2021, 1,469 staff cases associated with outbreaks were reported, for an average of 
approximately 19 cases per day.
Similar reporting is available from Louisiana’s Department of Health (LDH, 
August 24, 2021), with 1,347 outbreaks and 9,130 cases reported as of August 24, 2021. 
LDH defines an outbreak as 2 or more cases among unrelated individuals who visited a 
site within a 14-day period. More than three quarters of outbreaks through that date were 
associated with workplaces. Workplace settings in Louisiana that experienced more than 
5% of outbreaks included day care facilities, bars, restaurants, retail settings, industrial 
settings, and office spaces. Other types of workplace settings or industries where 
outbreaks occurred included casinos, gyms/fitness centers, banks, automotive services, 
construction, and ships/boats. 
In addition to the state data above, some published studies and government 
reports provide information on recent workplaces outbreaks. For example, 47 people, 
including 3 of 11 staff members, 23 gymnasts, and 21 household contacts, contracted 
COVID-19 from an outbreak linked to an Oklahoma gymnastics facility during April 15 
through May 3, 2021 (Dougherty et al., July 16, 2021). All 21 of the virus samples 
sequenced were determined to be the Delta variant. The majority of the infected 
individuals (85%) were unvaccinated.  Infections were reported in 16 adults aged 20 
years or older; two adults were hospitalized and one required intensive care.  
The state of Hawaii defines clusters as three or more confirmed or probable cases 
linked to a site or event within 14 days, with no outside exposure of cases to each other 
(Hawaii State, August 19, 2021). The state reported a COVID-19 cluster in July 
associated with a concert at a bar that affected 16 people, including employees, band 
members, and concert attendees; infections also spread to 7 household members. Band 
members had performed while sick. Four of the initial 16 people and none of the 
household members who tested positive for COVID-19 were fully vaccinated. The 

concert cluster was linked to clusters at another workplace and another concert. The 
report lists additional clusters investigated in the two weeks prior to the report; those 
clusters were observed in workplace locations such as correctional facilities, bars and 
nightclubs, restaurants, construction/industrial sites, travel/lodging/tourism, schools, food 
suppliers, and gyms.
Additional evidence that employees are at risk of exposure to SARS-CoV-2 in the 
workplace is available from published, peer-reviewed studies that were conducted before 
the Delta variant emerged. Those studies demonstrate that employees have been at risk of 
infection, illness, and death throughout the COVID-19 pandemic. Because the Delta 
variant is more transmissible and likely causes more severe disease than previous 
variants, there is even greater potential for unvaccinated employees to become seriously 
ill or die as a result of exposure to the Delta variant. 
Contreras et al. (July, 2021) examined workplace outbreaks (excluding healthcare 
settings, homelessness services, and emergency medical services) in Los Angeles county 
from March 19 through September 30, 2020. Workplace outbreaks were defined as 5 or 
more suspected or laboratory confirmed COVID-19 cases (prior to May 29) or 3 or more 
laboratory confirmed cases (after May 29) occurring within 14 days.  Nearly 60% of the 
698 identified outbreaks occurred in three sectors – manufacturing (184, 26.4%), retail 
trade (137, 19.6%), and transportation and warehousing (73, 10.5%). Also notable were 
the 71 outbreaks in the accommodation and food services industry, which represented 
10.2 % of the outbreaks. The study authors concluded that outbreaks were larger and 
lasted longer at facilities with more onsite staff.
Outbreaks in Wisconsin from March 4 through November 16, 2020 were also 
examined (Pray et al., January 29, 2021). Non-household outbreaks were defined as two 
or more confirmed COVID-19 cases that occurred within 14 days in persons who 
attended the same facility or event and did not share a household. During the period from 

March 4 through November 16, 2020, the largest percentages of cases were associated 
with outbreaks in long-term care facilities (26.8% of cases), correctional facilities (14.9% 
of cases), and colleges or universities (15% of cases). Also notable were the substantial 
number of cases associated with outbreaks in food production or manufacturing facilities 
(including meat processing and warehousing; 14.5 % of cases) and schools and childcare 
facilities (10.6% of cases). 
Bui et al. (August 17, 2020) analyzed data from the Utah Department of Health’s 
COVID-19 case surveillance system, which included data on workplace outbreaks. 
Outbreaks were defined as two or more laboratory confirmed cases occurring within a 14 
day period among coworkers in a common workplace (e.g., same facility). During the 
time period between March 6 and June 5, 2020, 277 COVID-19 outbreaks were reported, 
of which 210 (76%) occurred in workplaces. The 210 workplace outbreaks occurred in 15 
of 20 industry sectors, and the industry sectors of manufacturing (43 outbreaks, 20%), 
construction (32 outbreaks, 15%), and wholesale trade (29 outbreaks, 14%) together 
represented nearly half of workplace outbreaks. Other sectors that represented more than 
10% of total outbreaks were retail trade (28 outbreaks, 13%) and accommodation and 
food services (25 outbreaks, 12%). Incidence rates of COVID-19 over the period of 
March 6 through June 5, 2020 were 339/100,000 workers in manufacturing, 122/100,000 
workers in construction, 377/100,000 workers in wholesale trade, 68/100,000 workers for 
retail trade, and 78/100,000 workers for accommodation and food services. For COVID-
19 cases associated with workplace outbreaks in which hospitalization and severity status 
were known (1,382 and 1,155, respectively), the number in all sectors who were admitted 
to the hospital was 85 (6%) and the number with severe outcomes (intensive care unit 
admission, mechanical ventilation, or death) was 40 (3%). 
The impact of SARS-CoV-2 exposures on employee infection, illness, and death 
has also been demonstrated in studies focusing on specific types of industries, such as 

those where employees have frequent contact with each other and the public (e.g., 
grocery stores, bars, fitness facilities, schools, and law enforcement/corrections). For 
example, a study by Lan et al. (September 26, 2020) demonstrates the risk of infection in 
service industries.  The cross-sectional study examined the risks of SARS-CoV-2 
exposure and infection for employees in a Boston, Massachusetts-area retail grocery store 
market. The study tested 104 grocery store employees, of whom 20% (21 employees) 
were positive for COVID-19; 76% of confirmed cases did not have symptoms. After 
adjusting for gender, smoking, age, and the prevalence of COVID-19 in the employees’ 
residential communities, employees who had direct customer exposure (e.g., cashiers, 
sales associates, cart attendants) were 5.1 times more likely to have a positive test for 
COVID-19 than employees without direct face-to-face customer exposure (e.g., stockers, 
backroom, receiving and maintenance). The infection rate of 20% among all employees 
was significantly higher than the rate in the surrounding community.
In February of 2021, an event at an Illinois bar that accommodates approximately 
100 people resulted in a COVID-19 outbreak that affected 46 people, including 3 (10%) 
staff members, 26 (90%) patrons, and 17 secondary cases (Sami et al., April 9, 2021). 
People at the event included an asymptomatic person diagnosed with COVID-19 on the 
previous day and 4 symptomatic people who were later diagnosed with COVID-19. The 
outbreak resulted in a school closure and the hospitalization of a resident at a long-term 
care facility.
In Minnesota, 47 COVID-19 outbreaks were detected at fitness facilities from 
August through November of 2020 (Suhs et al., July 23, 2021). One outbreak at a fitness 
facility during October through November of 2020 resulted in 23 COVID-19 cases 
including 5 (22%) employees and 18 (78%) members. A genetic analysis of specimens 
from 3 employees and 10 members identified 2 distinct genetic subclusters, indicating 
two distinct chains of transmission among members and employees.

School-related outbreaks were examined from December 1, 2020 through January 
22, 2021 in eight public elementary schools of a Georgia school district (Gold et al., 
February 26, 2021).  A COVID-19 case was determined to be school-related if (1) 
symptom onset or a positive test was consistent with the incubation period of the virus 
following contact with an index case or a school-associated case, (2) close contact 
occurred with the index case or school-associated case while that person was infected, 
and (3) no known contact occurred with an infected community or household contact in 
the two weeks prior to a positive test for COVID-19. The investigators identified nine 
clusters of three or more epidemiologically linked COVID-19 cases that involved 13 
educators and 32 students in six of the eight elementary schools. Approximately half of 
the school-associated cases involved two clusters that began with probable transmission 
between educators, followed by educator to student transmission. Eighteen of 69 
household members tested received positive results.
A number of studies demonstrate the impact of COVID-19 in law enforcement 
and related fields such as corrections. For example, a study examining COVID-19 
antibodies in employees from public service agencies in the New York City area from 
May through July of 2020, found that 22.5% of participants had COVID-19 antibodies 
(Sami et al., March, 2021). The percentage of correctional officers found to have 
COVID-19 antibodies (39.2 %) was the highest observed among all the occupations. The 
percentages of police dispatchers, traffic officers, security guards, and dispatchers found 
to have COVID-19 antibodies (29.8 to 37.3%) were among the highest levels observed in 
all the occupations. The study authors noted that those jobs involve frequent or close 
contact with the public or are done in places where employees work in close proximity to 
their coworkers.
Wallace et al. (May 15, 2020) evaluated data on COVID-19 cases and deaths 
among correctional facility employees and inmates from January 21 to April 21, 2020. 

Data were reported to CDC by 37 (69%) of 54 state and territorial health department 
jurisdictions. Of these 37 jurisdictions, 32 (86%) reported at least one COVID-19 case 
from a correctional facility. Of the 420 facilities with a case, 221 (53%) reported cases 
only among staff members. In total, 4,893 COVID-19 cases among incarcerated or 
detained persons and 2,778 cases among staff members were reported (total tested not 
provided). Among staff member cases, 79 hospitalizations (3%) and 15 deaths (1%) were 
reported. The study authors noted that “correctional and detention facilities face 
challenges in controlling the spread of infectious diseases because of crowded, shared 
environments and potential introductions by staff members and new intakes.”
Ward et al. (June 2021) analyzed COVID-19 prevalence among prisoners and 
staff in 45 states from March 31, 2020 through November 4, 2020. During that time 
period, COVID-19 cases in staff were 3 to 5 times higher compared to the U.S. 
population. Average daily increases in cases were 42 per 100,000 prison employees, 61 
per 100,000 prisoners, and 13 per 100,000 U.S. residents. On November 4, 2020, 
COVID-19 prevalence for prison staff was 9,316 cases per 100,000 employees, which 
was 3.2 times greater than prevalence in the U.S. population (2,900 cases per 100,000). 
Kirbiyik et al. (November 6, 2020) analyzed movement through a network-
informed approach to identify likely high points of transmission within the Cook County 
Jail in Chicago, IL. At that facility, over 900 COVID-19 cases were reported across 10 
housing divisions in 13 buildings from March 1–April 30, 2020. Staff members were 
required to report symptoms of COVID-19 (probable cases) or receipt of a positive 
test result (confirmed cases). A total of 2,041 staff members (77% of staff) were included 
in the network analysis because information was available about their shift and division 
assignments, and 198 (9.7%) of those staff members had COVID-19 during the two-
month study period. Connections between staff members who had COVID-19 were 
higher than expected, suggesting likely transmission among staff members. Fewer 

connections than expected were observed among detained persons with SARS-CoV-2 
infections, suggesting the effectiveness of medical isolation at reducing transmission.
The Officer Down Memorial Page, which tracks police officer fatalities 
determined to be occupationally related, reported that the majority of officer deaths for 
2021 (157 of 269) were related to COVID-19 (ODMP, September 14, 2021). For the 269 
officers who died, causes of death were not reported for each month, but the highest 
numbers of monthly deaths, 52 in January and 65 in August  (compared to 16 to 34 
deaths on other reported months), were consistent with the winter surge of COVID-19 
and, more recently, the surge caused by the Delta variant.
The risk of COVID-19 has also been examined in industries where employees 
have little contact with the public, such as construction, and food processing, and where 
most exposure to SARS-CoV-2 likely comes from other workers. Pasco et al. (October 
29, 2020) examined the association between construction work during the COVID-19 
pandemic and community transmission and construction worker hospitalization rates in 
Austin, Texas from March 13 to August 20, 2020. A “Stay Home-Work Safe” order 
enacted on March 24, 2020, limited construction to only critical infrastructure and 
excluded commercial and residential work. One week later, the Texas governor lifted the 
restriction for essential workers and allowed all types of construction work to resume, 
while keeping the order in place for other workers. The authors found that resuming 
construction during the shelter-in-place order led to an increase in community 
transmission, an increase in hospitalizations among community members, and an increase 
in hospitalizations of construction workers. By mid-July, Austin Public Health identified 
at least 42 clusters (not defined) of COVID-19 cases in the construction industry; 515 
individuals were hospitalized for COVID-19 illnesses acquired as part of these clusters, 
and 77 of those reported working in construction. The study found that construction 
workers had a nearly 5-fold increased risk of hospitalization in central Texas compared 

with workers in other occupations. The authors’ model predicted that allowing 
unrestricted construction work would be associated with an increase in COVID-19 
hospitalization rates from 0.38 per 1,000 residents to 1.5 per 1,000 residents overall, and 
from 0.22 per 1,000 construction workers to 9.3 per 1,000 construction workers for the 
construction industry specifically. The authors concluded that stringent workplace safety 
measures could significantly mitigate risks related to COVID-19 in the industry. 
The meat packing and processing industries and related agricultural and food 
processing sectors have also been impacted by COVID-19. Waltenburg et al. (January, 
2021) reported COVID-19 cases in employees from meat and poultry processing 
facilities in 31 states from March 1 through May 31, 2020. As reported in Table 2 of that 
report, 28,364 employees in those facilities were confirmed to have COVID-19 by 
laboratory testing and 132 died. Among the 20 states that reported total numbers of 
employees, 11.4% of the workers were diagnosed with COVID-19 (with a range of 3.1 to 
27.7% of workers in individual states). For states that reported at least one COVID-19-
related death, the percentages of employees who died in each state ranged from 0.1 to 
2.4% of those with COVID-19. The authors found a high burden of disease in persons 
employed at these facilities who were racial or ethnic minorities. Higher incidence in 
these populations might be due to the likelihood of these employees working in areas in 
the plant where transmission risk is higher. Steinberg et al. (August 7, 2020) reported that 
attack rates (i.e., the number of individuals who are infected in comparison to the total 
number at risk) among production employees in the Cut (30.2%), Conversion (30.1%), 
and Harvest (29.4%) departments of a meat processing plant (where spacing between 
employees is less than 6 feet) were double that of salaried employees (14.8%) whose 
workstations had been modified to increase physical distancing from others. 
Waltenburg et al. (January, 2021) also evaluated COVID-19 incidence in food 
manufacturing and agricultural settings (e.g., manufacturing or farming involving fruits, 

vegetables, dairy, baked goods, eggs, prepared foods), as reported in 30 states from 
March through May 2020. In food manufacturing and farming of fruits, vegetables, dairy, 
and other items, 742 workplaces were affected, including 8,978 infections and 55 
fatalities. For states that reported total numbers of employees, the proportion of 
employees who developed COVID-19 in each state ranged from 2.0 to 43.5%. For states 
that reported at least one death, the percentages of deaths among cases ranged from 0.1 to 
3.8%.
Porter et al. (April 30, 2021) reported that 13 COVID-19 outbreaks occurred at 
Alaska seafood processing facilities and vessels (both of which were described as high 
density workplaces) during the Summer and early Fall of 2020. The 13 outbreaks 
involved 539 COVID-19 cases, with 2–168 cases per outbreak. Attack rates in facilities 
and offshore vessels ranged from less than 5% to 75%. Outbreaks were also reported in 
entry quarantine groups. Because of these outbreaks, it was determined that vaccination 
of these essential workers is important and requirements for COVID-19 prevention were 
updated to include smaller quarantine groups, serial testing, and testing before transfers 
from one facility or vessel to another. 
Finally, two published studies analyzed death records to determine how mortality 
rates among individuals in various types of workplaces had changed during the 
pandemic. Chen et al. (June 4, 2021) analyzed records of deaths occurring on or after 
January 1, 2016 in California and found that mortality rates in working aged adults (18 – 
65 years) increased 22% during the COVID-19 pandemic period of March through 
November 2020 compared to pre-pandemic periods. Relative to pre-pandemic periods, 
the groups of employees experiencing the highest, statistically significant increases in 
relative excess mortality were those in food/agriculture (39% increase), 
transportation/logistics (31% increase), facilities (23% increase), and manufacturing 
(24% increase). Other groups that also experienced excess, statistically significant 

mortality compared to pre-pandemic periods were health or emergency workers (17% 
increase), retail workers (21% increase), and government and community workers (17% 
increase). The study authors concluded that certain occupational sectors were impacted 
disproportionally by mortality during the pandemic and that essential work conducted in-
person is a likely avenue of infection transmission. 
Hawkins et al. (January 10, 2021) examined death certificates of individuals who 
died in Massachusetts between March 1 and July 31, 2020. An age-adjusted mortality 
rate of 16.4 per 100,000 employees was determined from 555 death certificates that had 
useable occupation information. Employees in 11 occupational groups had particularly 
high mortality rates: healthcare support; transportation and material moving; food 
preparation and serving; building and grounds cleaning and maintenance; production, 
construction and extraction; installation/maintenance/repair; protective services; personal 
care services; arts/design/entertainment; sports/media; and community and social 
services. The study authors noted that occupational groups expected to have frequent 
contact with sick people, close contact with the public, and jobs that are not practical to 
do from home had particularly elevated mortality rates.
 b. Healthcare workers. 
As explained in the Healthcare ETS, COVID-19 presents a grave danger to 
workers in all U.S. healthcare settings where people with COVID-19 are reasonably 
expected to be present (86 FR 32381). Healthcare settings covered by the Healthcare ETS 
primarily include settings where people with suspected or confirmed COVID-19 are 
treated, exacerbating the risk present in most workplaces. To control the higher level of 
risk in those settings, OSHA determined that a suite of workplace controls was necessary 
to protect all employees, whether they are vaccinated or unvaccinated.   As explained 
further below, OSHA now finds that unvaccinated healthcare workers in healthcare 
settings not covered by the Healthcare ETS are also at grave danger from exposure to 

SARS-CoV-2, just like unvaccinated workers in other industries. Data continue to be 
collected and reported for healthcare workers, and a small number of peer-reviewed 
studies demonstrate the potential impact of the Delta variant on healthcare workers.
CDC continues to provide updates for COVID-19 cases and deaths among 
healthcare personnel. However, information on healthcare personnel status continues to 
be reported for only a fraction (18.91%) of total reported cases, and death status was 
reported for only 82.16% of healthcare personnel cases as of October 18, 2021 (CDC, 
October 18, 2021 – Healthcare Personnel). Given incomplete reporting, the data from this 
source represent only a fraction of actual healthcare cases and deaths. Nevertheless, CDC 
reported 666,707 healthcare personnel cases among the  6,754,306 reported cases that 
included information on healthcare personnel status (9.9%) and 2,229 fatalities among 
the  547,769 cases that included death status (0.4%) for healthcare employees as of 
October 18, 2021. This is a 26% increase in the number of cases and a 27% increase in 
the number of deaths since the May 24, 2021 data reported in the ETS (CDC, October 18, 
2021 – Healthcare Personnel). The Delta variant is likely responsible for the majority of 
those deaths. No healthcare worker deaths were reported by CDC during the weeks of 
May 30 through June 13, 2021; however, as the Delta variant’s prevalence rose after June 
20, healthcare worker deaths began increasing; they peaked during the period of August 
15 through September 12, 2021, when 34 to 36 healthcare worker deaths were reported 
per week (CDC October 18, 2021 – Healthcare Personnel, Deaths by Week). Independent 
reporting by Kaiser Health News and The Guardian reported more than 3,600 fatalities in 
health care workers as of April 2021 (Spencer and Jewett, April 8, 2021). That number is 
expected to be higher at this time since the earlier figure did not include the most recent 5 
months of the pandemic, which includes the period of Delta variant predominance.
Published studies also demonstrate that healthcare workers, especially those who 
are unvaccinated, remain at risk of being infected with SARS-CoV-2 (see Section 

III.A.IV. Vaccines Effectively Reduce Severe Health Outcomes from and Transmission of 
SARS-CoV-2). Routine testing of  health care personnel, first responders, and other 
frontline workers in eight U.S. locations in six states from December 14, 2020 through 
August 14, 2021 revealed 194 infections in 4,136 unvaccinated participants (89.7% 
symptomatic) and 34 infections in 2,976 fully vaccinated participants (80.6% 
symptomatic) (Fowlkes et al., August 27, 2021). During time periods when the Delta 
variant represented more than 50% of viruses sequenced, 19 infections were detected in 
488 unvaccinated participants (94.7% symptomatic) and 24 infections were detected in 
2,352 vaccinated participants (75% symptomatic). 
Monthly COVID-19 cases in healthcare workers were reported during the period 
from March 1 to July 31, 2021 at the University of California San Diego (UCSD) health 
system, which is a healthcare provider that includes primary care services such as family 
medicine and pediatrics (Keehner et al., September 1, 2021; UCSD, 2021). During that 
time period, a total of 227 health care workers tested positive for COVID-19. One 
hundred and nine of 130 fully vaccinated workers who tested positive (83.8%) were 
symptomatic and 80 of 90 unvaccinated workers (88.9%) were symptomatic; one 
unvaccinated person was hospitalized for COVID-19 symptoms. By July of 2021, after 
the end of California’s mask mandate on June 15 and after the Delta variant became 
dominant, the number of cases detected dramatically increased; the Delta variant 
accounted for more than 95% of SARS-CoV-2 viruses sequenced by the end of that 
month. During July of 2021, symptomatic infections were detected in 94 of 16,492 fully 
vaccinated workers and 31 of 1,895 unvaccinated workers. Attack rates in July of 2021 
were 5.7 per 1,000 fully vaccinated workers and 16.4 per 1,000 unvaccinated workers. 
In Finland, a Delta variant infection from a hospitalized patient spread throughout 
the hospital and to three primary care facilities, infecting 103 individuals, including 45 
healthcare workers (Hetemäki et al., July 29, 2021). Twenty-six of the healthcare workers 

were infected at the hospital and 19 were infected at primary care facilities. The affected 
health care workers included 28 with direct patient contact (11 who were not fully 
vaccinated), 8 unvaccinated healthcare worker students, and 9 other staff, including 
hospital cleaners and secretaries (of whom 6 were not fully vaccinated). According to 
study authors, “There was high vaccine coverage among permanent staff in the central 
hospital, but lower for HCW in primary healthcare facilities. . .”  Study authors estimated 
that vaccine effectiveness against the Delta variant in healthcare workers was 
approximately 88-91%, suggesting how much more extensive the outbreak could have 
been if a high percentage of healthcare workers were not fully vaccinated. 
In the UK, a Delta variant infection in a healthcare worker resulted in an outbreak 
in a care home that affected 16 of 21 residents and 8 of 21 staff (Williams et al., July 8, 
2021). One staff member was hospitalized. Attack rates were 35.7% in staff who were 
partially vaccinated (i.e., received their second dose of vaccine on the day that the index 
case was diagnosed with COVID-19 or had only received one vaccine dose) and 40% in 
staff who were not vaccinated.  
Recent news stories demonstrate that outbreaks affecting staff members are still 
occurring in U.S. healthcare facilities. An outbreak that began in August, 2021 at a 
Washington State nursing center resulted in infections in 22 staff members and 52 
residents. In an unrelated outbreak, a nursing facility in Hawaii reported infections in 24 
employees and 54 patients (Wingate, September 24, 2021). Vaccination rates were 
reported at 64.5% of residents and 37.1% of staff in the Washington State facility and 
91% of staff and more than 80% of patients at the Hawaii facility. 
COVID-19 cases were also observed in staff at ambulatory care settings prior to 
emergence of the Delta variant. Over an 11-week period beginning on March 20, 2020, 
254 tests for SARS-CoV-2 were performed on employees who had potential exposures at 
an outpatient urology center in New York State (Kapoor et al., 2020). Positive test rates 

in employees correlated with rates in New York State, declining over time, from 26.1% 
in the early stage to 7.3% in the late stage of the study. According to study authors, the 
positive test results coincided with the implementation of infection control procedures 
(e.g., symptom screening, masking, distancing, and hygiene). Positivity rates were similar 
in administrative and clinical staff and the study authors concluded that “administrative 
staff in an outpatient setting were equally—if not more—vulnerable to SARS-CoV-2 
transmission when compared with clinical staff who were more directly exposed to 
patients.” The study authors speculated that possible reasons for the findings were that 
clinical staff were more familiar with PPE and that administrative staff, especially in 
check-in and check-out points, tend to work close to each other.
c. Conclusion for Employee Impact.
The evidence described above provides examples of the impact that exposures 
from SARS-CoV-2, including those involving the Delta variant, have had on employees 
in general industry, agriculture, construction, maritime, and healthcare settings. It 
demonstrates that SARS-CoV-2 has spread to employees in these industries and, in many 
cases, infection was linked to exposure to infected persons at the worksite (WSDH, 
September 8, 2021; OHA, September 1, 2021; TDH, September 8, 2021; NCDHHS, 
August 30, 2021; Hawaii State, August 19, 2021; Pray et al., January 29, 2021; Sami et 
al., April 9, 2021; Suhs et al., July 23, 2021; Gold et al., February 26, 2021; Porter et al., 
April 30, 2021; Hetemäki et al., July 29, 2021; Williams et al., July 8, 2021). The 
documentation of so many workplace clusters suggests that exposures to SARS-CoV-2 
occur regularly in workplaces where employees come into contact with others. This 
prevalence of clusters, combined with some evidence that many infections occurred 
within the 14-day incubation period for SARS-CoV-2 and that exposures to infected 
persons outside the workplace were frequently ruled out, supports the proposition that 
exposures to and transmission of SARS-CoV-2 occur frequently at work. Multiple studies 

demonstrate high rates of COVID infections, illnesses, and fatalities in the wide range of 
occupations that require frequent or prolonged close contact with other people, indoor 
work, and work in crowded and/or poorly ventilated areas The large numbers of infected 
employees suggest that SARS-CoV-2 is likely to be present in a wide variety of 
workplaces, placing unvaccinated workers at risk of serious and potentially fatal health 
effects. 
IV. Vaccines Effectively Reduce Severe Health Outcomes from and Transmission of 
SARS-CoV-2.
During the course of the SARS-CoV-2 pandemic, different variants have emerged 
with different characteristics that better enable transmission and potentially cause more 
severe outcomes. However, vaccines remain very effective at reducing the occurrence of 
COVID-19-related severe illness, disability and death.12 The Delta variant is more 
transmissible than previous variants, might cause more severe illness than previous 
variants in unvaccinated people, and has led to hospitalization of individuals in numbers 
similar to those of the November 2020 to February 2021 surge. These changes in 
characteristics have provided a clearer realization of the continuing capacity for SARS-
CoV-2 to present a grave danger to workers. However, it is well evident that even given 
these changed characteristics of Delta, serious disease and death continue to occur 
overwhelmingly in unvaccinated individuals while the vaccinated are afforded great 
protection.13  
a. Impact of Vaccination on Severe Health Outcomes.
12 A discussion of vaccination rates, as well as OSHA’s rationale for why vaccination is a critical means of 
protecting workers from the grave danger described in this section, can be found in Need for the ETS 
(Section III.B. of this preamble).
13 While mild cases of COVID-19 are included in the grave danger presented by COVID-19, as stated in 
the Healthcare ETS (see 86 FR 32382), OSHA is focusing on the most severe health effects, i.e., cases 
requiring hospitalization and cases resulting in death, in this new rulemaking effort in order to prevent the 
gravest of consequences to workers.

There are currently three vaccines that are approved or authorized for the 
prevention of COVID-19 in the U.S.: the Pfizer-BioNTech COVID-19 vaccine (FDA 
approved for ages 16 and above; authorized for ages 12 and above), the FDA-authorized 
Moderna COVID-19 vaccine (authorized for ages 18 and above), and the FDA-
authorized Janssen COVID-19 vaccine (also known as the Johnson & Johnson vaccine; 
authorized for ages 18 and above.) Pfizer-BioNTech and Moderna are mRNA vaccines 
that require two primary series doses administered three weeks and one month apart, 
respectively. Janssen is a viral vector vaccine  administered as a single primary 
vaccination dose (CDC, September 15, 2021). The vaccines were shown to greatly 
exceed minimum efficacy thresholds in preventing COVID-19 in clinical trial 
participants (FDA, December 11, 2020; FDA, December 18, 2020; FDA, February 26, 
2021). Data from clinical trials for all three vaccines and observational studies for the two 
mRNA vaccines clearly establish that fully vaccinated persons have a greatly reduced 
risk of SARS-CoV-2 infection compared to unvaccinated individuals. This includes 
severe infections requiring hospitalization and those resulting in death. For more 
information about the effectiveness of vaccines as of late Spring 2021, see 86 FR 32397, 
which OSHA hereby includes in the record for this ETS.14
Vaccines remain highly effective against hospitalization and death. A study 
evaluating vaccine effectiveness at preventing hospitalization among those with SARS-
CoV-2 infections in New York found that effectiveness did not change from May 3 to 
July 25, 2021 as the Alpha variant gave way to the Delta variant (91.9-96.2% range; 
Rosenberg et al., August 27, 2021). Grannis et al. used data from 187 hospitals in nine 
states from June to August 2021 to evaluate the efficacy of vaccines against 
hospitalization when Delta had emerged as the predominant variant causing SARS-CoV-
14 This adoption includes the citations in the referenced section of the Healthcare ETS, which are also 
included in the docket for this ETS.

2 infections (September 17, 2021). This study found that vaccines were 89% effective at 
preventing hospitalization in individuals aged 18 to 74. Similarly, vaccines were also 
found to be 89% effective in preventing hospitalization in a study collecting data from 
five Veteran Affairs Medical Centers from July 1 to August 6, 2021, a time when most 
transmission was attributed to the Delta variant (Bajema et al., September 10, 2021). 
Two other studies found that, although the level of protection provided by 
vaccination has decreased somewhat with the emergence of the Delta variant, vaccines 
continue to provide high levels of protection against hospitalization. In a U.S. study, 
researchers found that while the Moderna and Janssen vaccines mostly maintained their 
effectiveness at preventing hospitalization (going from 93% to 92% after more than 120 
days post-vaccination and 71% to 68% after more than 28 days post-vaccination, 
respectively) from March to August 2021, the effectiveness of the Pfizer-BioNTech 
vaccine at preventing those severe outcomes decreased from 91% to 77% after more than 
120 days post-vaccination (Self et al., September 17, 2021). An Israeli study on 
infections documented between July 11 and July 31, 2021 found a significant decrease in 
vaccine efficacy for the Pfizer-BioNTech vaccine against severe outcomes in relation to 
when an individual was vaccinated, but the absolute difference was much less than what 
was observed in the U.S. study (e.g., 98% effective for 40-59 year olds vaccinated in 
March versus 94% effective for those in the same age group who were vaccinated in 
January) (Goldberg et al., August 30, 2021). 
Vaccines also remain extremely effective at preventing death. A UK study 
evaluated the effectiveness of the Pfizer-BioNTech vaccine against death and found it to 
be 96.3% effective against the Alpha strain and 95.2% protective against the Delta strain 
(Andrews et al., September 21, 2021). Two Israeli studies, Haas et al. and Saciuk et al., 
performed during time periods where Alpha was predominant, found the Pfizer-
BioNTech vaccine to be 96.7% and 91.1% effective, respectively, against death (Haas et 

al., May 15, 2021; Saciuk et al., June 25, 2021). A California study found that the 
Moderna vaccine was 97.9% effective against death (Bruxvoort et al., September 2, 
2021). A study on patients served by the Veterans Health Administration found that 
Pfizer-BioNTech and Moderna vaccines provided 99% effectiveness against death 
(Young-Xu et al., July 14, 2021).
The risks of hospitalization and death appear to have increased for unvaccinated 
individuals since the Delta variant became a common source of infections. A study of 
Los Angeles County SARS-CoV-2 infections found that vaccinations reduced 
hospitalization risk by a factor of 10 on May 1, 2021, when the Alpha variant was 
dominant, but that the risk of hospitalization was even more greatly reduced (by a factor 
of 29.2) on July 25, 2021, when the Delta variant was dominant (Griffin et al., August 27, 
2021). This difference suggests both that vaccines continue to provide a high level of 
protection against disease that results in hospitalization and that risk has increased for 
those who are unvaccinated. Similar increased risk for unvaccinated individuals was 
reported in a study that evaluated hospitalization and death data from 13 US jurisdictions 
between June 20 and July 17, 2021, a period when the Delta variant gained prominence 
(Scobie et al., September 17, 2021). For unvaccinated 18 to 49 year olds, the risk of 
hospitalization was 15.2 times greater, and the risk of death was 17.2 times greater, than 
the risks for vaccinated people in the same age range. For unvaccinated 50 to 64 year 
olds, the risk of hospitalization was 10.9 times greater, and the risk of death was 17.9 
times greater, than for those who are vaccinated. These studies illustrate that vaccination 
is an extremely effective control measure to minimize severe outcomes resulting from 
Delta variant infections.
b. Impact of Vaccination on Infection and Transmission.
Vaccines continue to provide robust protection for vaccinated individuals against 
SARS-CoV-2 infections, even though several studies indicate that vaccine efficacy 

against infection may have decreased somewhat with the emergence of the Delta variant  
(Fowlkes et al., August 27, 2021; Rosenberg et al., August 27, 2021; Nanduri et al., 
August 27, 2021; Seppala et al., September 2, 2021; Bernal et al., August 12, 2021). For 
example, vaccination was observed to reduce the risk of infection by a factor of 8.4 on 
May 1, 2021, when the Alpha variant was predominant in Los Angeles county (Griffin et 
al., August 27, 2021). However, the level of protection had fallen to a factor of 4.9 by 
July 25, 2021, when Delta made up 88% of infections in the county. The findings from 
this study indicate that while vaccines maintain robust protection against severe 
outcomes, protection against infection has fallen with the increased circulation of the 
Delta variant. A broader study using data from 13 U.S. jurisdictions had similar findings, 
observing that the protection vaccines afforded against infection decreased from a factor 
of 11.1 (i.e., vaccinated people were 11.1 times less likely than unvaccinated people to 
become infected) between April 4 and June 19, 2021, to a factor of 4.6 between June 20 
and July 17, 2021 (Scobie et al., September 17, 2021).  An additional study noted, 
however, that the decrease in vaccine protectiveness against symptomatic infection from 
the Delta variant could be due to the waning of immunity specifically in older 
populations. Andrews et al. (September 21, 2021) found that while the Pfizer-BioNTech 
vaccine effectiveness decreased from 94.1% to 67.4% in those 65 years old and older, 
vaccine effectiveness for those 40 to 64 years old only decreased from 92.9% to 80.6%.
While infections themselves do not normally result in serious illness for those 
who are vaccinated, evidence shows that vaccinated individuals who become infected 
with the Delta variant can transmit the disease more easily to others than with previous 
variants. This development poses a great concern for the unvaccinated, who generally do 
not have the protections against severe outcomes that vaccination affords. Before Delta, 
vaccinated individuals were shown to have lower estimated viral loads when infected 
than those who were unvaccinated, which suggested that infected vaccinated individuals 

were likely not a major concern for transmission (Levine-Tiefenbrun et al., March 29, 
2021). Transmission studies prior to the emergence of Delta appear to bear this out. A 
Scottish study performed during a time period when the Alpha variant was predominant 
in the region, showed that a fully vaccinated individual was 3.2 times less likely than an 
unvaccinated individual to transmit the virus to unvaccinated family members (Shah et 
al., September 10, 2021; supplementary appendix). A population-based study from the 
Netherlands found that vaccination decreased secondary transmission to household 
members from 31% to 11% (de Gier et al., August 5, 2021). Additionally, a study from 
the UK found that household transmission decreased by as much as 50% when the 
infected individual was vaccinated (Harris et al., June 23, 2021). 
More recent research suggests that the Delta variant may have reduced the level 
of protection vaccination affords against transmission of the virus to others, but still 
significantly reduces transmission risk in comparison to infected unvaccinated 
individuals.  A UK study found that fully vaccinated individuals infected by the Delta 
variant are able to transmit the virus to both vaccinated and, to a greater degree, 
unvaccinated persons (Singanayagam et al., September 6, 2021). Still, the rate at which 
transmission to unvaccinated individuals occurred was nearly double the rate of 
transmission to vaccinated individuals (35.7% compared to 19.7%). Similarly, Eyre et al., 
(September 29, 2021) found that during the predominance of Alpha, full vaccination with 
the Pfizer-BioNTech vaccines resulted in a significant reduction in transmission to others 
(an adjusted Odds Ratio (aOR) of 0.18, meaning that being unvaccinated increased the 
odds of transmission by over five times). With the rise of the Delta variant, that reduction 
in transmission to others was less than with the Alpha variant, but still significantly more 
than for unvaccinated individuals (aOR of 0.35, meaning that being unvaccinated 
increased the odds of transmission by almost three times).

The greater ability for vaccinated individuals to transmit the Delta variant of 
SARS-CoV-2 to others (compared to previous variants) appears to be linked to the 
generation of similar viral loads (as estimated by Ct threshold) in the vaccinated 
compared to the unvaccinated (Ct threshold is the number of RT-PCR cycles that need to 
be run in order to amplify the RNA enough to be detected -- fewer cycles means a greater 
initial amount of virus was collected) (Singanayagam et al., September 6, 2021). This 
observation has been made in several studies. A study from Israel observed that viral 
loads among those infected with the Delta variant were only decreased in people who had 
been vaccinated recently (within the past two months) or in those who had recently 
received a booster dose (Levine-Tiefenbrun et al., September 1, 2021). In a study of 
SARS-CoV-2 infections in Los Angeles County, performed when the Delta variant was 
predominant, vaccination status did not appear to affect the estimated viral loads, 
suggesting that infected individuals who are vaccinated may be just as likely to transmit 
the virus (Griffin et al., August 27, 2021). Additionally, estimated viral loads did not 
appear to be significantly different with respect to vaccination status in a Wisconsin study 
(Riemersma et al., July 31, 2021).  Regardless of viral loads in vaccinated and 
unvaccinated individuals, the fact remains clear that unvaccinated people pose a higher 
risk of transmission to others than vaccinated people, simply because they are much more 
likely to get COVID-19 in the first place.
These studies, however, appear to overstate increases in transmission risk from 
vaccinated individuals related to the Delta variant. From May to July 2021, UK 
researchers tested individuals at random to better characterize viral load estimates in 
people with asymptomatic as well as symptomatic infections; they found that vaccination 
was associated with a significantly lower estimated viral load (Elliott et al., September 
10, 2021). This more comprehensive study (i.e., Elliott et al., September 10, 2021) may 
have been able to better characterize the course of infection and to incorporate vaccinated 

individuals whose viral loads were decreasing quickly. The findings in Elliott et al. are 
consistent with studies observing that viral load may fall more quickly in vaccinated 
individuals, resulting in a shorter infectious period and possibly fewer transmission 
events (Chia et al., July 31, 2021; Eyre et al., September 29, 2021).  
c. Conclusion for the Impact of Vaccines.
The studies discussed above indicate that vaccines continue to effectively protect 
vaccinated individuals against SARS-CoV-2 infections, while the risk of infection, 
hospitalization, and death increased among unvaccinated people as the Delta variant 
became predominant in the U.S.  The Delta variant is even more dangerous to 
unvaccinated individuals than previous variants because of the higher transmission 
potential from both unvaccinated and vaccinated people.  Because unvaccinated 
individuals are at much higher risk of severe health outcomes from infection with SARS-
CoV-2, and also pose a greater transmission risk to those around them, it is critical to 
assure that as many people as possible are fully vaccinated in order to prevent 
transmission at work.
V. Coverage of OSHA’s Grave Danger Finding.
Based on the information discussed above, OSHA finds that many unvaccinated 
workers across the U.S. economy are facing a grave danger of severe health effects or 
death from exposure to SARS-CoV-2.  Fully vaccinated workers are not included in this 
grave danger finding because, as described throughout this section, those who are fully 
vaccinated are much better protected from the effects of SARS-CoV-2 and, in particular, 
the most severe effects, than are those who are unvaccinated.15  Beyond that, OSHA’s 
grave danger determination exempts several categories of workers based on 
15 The exclusion of vaccinated workers from this grave danger finding does not mean that vaccinated 
workers face no risk from exposure to SARS-CoV-2. The best available evidence clearly shows that 
vaccination provides great protection from infection and severe outcomes, but breakthrough infections do 
occur and vaccinated individuals can still transmit the virus to others.  In some cases, the level of risk to 
vaccinated workers may even rise to the level of a significant risk, the standard OSHA must meet for 
promulgation of a permanent standard under section 6(b)(5) of the OSH Act (29 U.S.C. 655(b)(5)).

characteristics of their work or workplace: 1) workers who do not report to a workplace 
where other individuals are present or who telework from home; and 2) workers who 
perform their work exclusively outdoors.  The basis for these exemptions is explained 
below. In this section, OSHA also addresses the basis for OSHA’s grave danger finding 
for workers who are unvaccinated yet had a prior COVID-19 infection, and explains the 
Agency’s more nuanced grave danger finding in the healthcare industry.
a. Employees Who Telework and Employees Who Do Not Report to a Workplace Where 
Other People Are Present.
Employees who report to workplaces where no other people are present face no 
grave danger from occupational exposure to COVID-19 because such exposure requires 
the presence of other people.  For those who work from their homes, or from workplaces 
where no other people are present (such as a remote worksite), the chances of being 
exposed to SARS-CoV-2 through a work activity are negligible.  Therefore, OSHA is 
exempting those workers who do not come into contact with others for work purposes 
from its grave danger finding as well as the scope of the ETS (for more information, see 
the Summary and Explanation for Scope and Application, Section VI.B. of this 
preamble).  
b. Employees Who Work Exclusively Outside.
Employees who work exclusively outside face a much lower risk of exposure to 
SARS-CoV-2 at work, because their workplaces typically do not include any of the 
characteristics that normally enable transmission to occur (e.g., indoors, lack of 
ventilation, crowding). Bulfone et al. attributed the lower risk of transmission in outdoor 
settings (i.e., open air or structures with one wall) to increased ventilation with fresh air 
and a greater ability to maintain physical distancing (November 29, 2020). While the best 
available evidence firmly establishes a grave danger in indoor settings, the CDC has 
stated that the risk of outdoor transmission is “low” (CDC, September 1, 2021) 

and OSHA is unable to establish a grave danger in outdoor settings from exposure during 
normal work activities. 
OSHA recognizes that outdoor transmission has been identified in a few specific 
incidents (e.g., 2 of 7,324 cases, Qian et al., October 27, 2020). However, general reviews 
of transmission studies that include large-scale and high-density outdoor gatherings 
indicate that indoor transmission overwhelmingly is responsible for SARS-CoV-2 
transmission. Additionally, the lack of evidence tied to specific case studies illustrating 
outdoor transmission in comparison to the bevy of case studies on indoor transmission 
makes it difficult to support a conclusion that outdoor transmission rises to the level of a 
grave danger. 
Bulfone et al. reviewed a collection of SARS-CoV-2 studies that evaluated 
infections in outdoor and indoor settings (November 29, 2020), and found that 
transmission is significantly less likely to occur in outdoor settings than in indoor 
settings. The studies overall found that the risk of outdoor transmission was less than 
10% of the risk of transmission in indoor settings, with three of the studies concluding 
risk was 5% or less of the risk of transmission in indoor settings. While acknowledging 
significant gaps in knowledge, the authors of a different study suggested that increases in 
transmission related to large events such as the Sturgis motorcycle rally may be related to 
lack of local efforts to prevent transmission indoors (e.g., requiring the wearing of masks, 
closing indoor dining), rather than the outdoor setting for the rally (Dave et al., December 
2, 2020). In contrast, transmission rates did not increase as expected following the 
Summer 2020 protests on racial injustice. This outcome was attributed, in part, to 
participants having been less likely to enter indoor commercial establishments.    
Weed and Foad (September 10, 2020) found that transmission of SARS-CoV-2 
related to large scale outdoor gatherings could be largely attributed to individual 
behaviors related to that event, such as communal travel and indoor congregation at other 

facilities (e.g., restaurants, shared accommodations), rather than to the time spent 
outdoors at those gatherings. Similarly, a Public Health England evaluation of the 
literature on SARS-CoV-2 and surrogate respiratory viruses (December 18, 2020) also 
concluded that when transmission does occur at outdoor events, outdoor activities were 
mixed with indoor setting use. Public Health England concluded that the vast majority of 
transmission happens in indoor settings, with very little evidence for outdoor 
transmission.  
A systemic review of SARS-CoV-2 clusters identified 201 events through May 
26, 2020 (Leclerc et al., April 28, 2021), only 4 of which occurred at predominantly 
outdoor settings. For those 4 clusters, the authors noted that they were not able 
to evaluate specific transmission events and attributed it to local health agencies being 
overwhelmed by the pandemic. OSHA notes that the designations of settings in this study 
are somewhat generic, as outdoor construction sites will often have indoor locations, such 
as mobile offices, or locations with reduced airflow, such as areas with a roof or ceiling 
and two or more walls. Regardless, this study illustrates the comparable abundance of 
evidence available to evaluate SARS-CoV-2 transmission in indoor settings versus 
outdoor settings. 
Cevik et al. (August 1, 2021) reviewed studies on the transmission dynamics of 
SARS-CoV-2 infections from large scale, contact-tracing studies. The authors 
recommended that, based on the evidence that outdoor transmission dynamics resulted in 
significantly fewer infections than in indoor settings, public health entities should greatly 
encourage use of outdoor settings. The researchers highlighted a study by Nishiura et al. 
(April 16, 2020), who evaluated 110 cases in Japan at the beginning of the pandemic and 
found that outdoor settings reduced transmission risk by 18.7 times and reduced 
the risk of super-spreader events by 32.5 times. 

Agricultural workplace settings have experienced significant SARS-CoV-2 
infections. However, transmission in these settings is difficult to characterize because 
many jobs in this sector include both outdoor and indoor activities. Miller et al. (April 30, 
2021) evaluated an outbreak among farmworkers in Washington State. The researchers 
found that 28% of workers with predominantly indoor tasks where they were unable 
to maintain physical distance were infected, compared to 6% of workers who performed 
predominantly outdoors tasks in the orchards. Conversely, a study on farmworkers in 
Monterey County, California found a significant correlation between evidence of 
infection and individuals who worked in the fields as opposed to indoor work (Mora et 
al., September 15, 2021). The paper noted that infections were predominant in individuals 
who lived in crowded conditions, commuted together to the fields, and spoke at home in 
indigenous languages, which is important as written health messages are often not 
available in all worker languages. These papers cannot identify where or when infections 
occurred in order to discern causation. The associations observed may indicate that 
SARS-CoV-2 infections may be more related to aspects related to indoor exposures 
outside of the work activities (e.g., crowded living conditions) or potentially overlooked 
indoor aspects connected to outdoor work (e.g., shared commuting).
Several studies discussed below in more detail have evaluated outdoors on-field 
transmission from infected participants during football, soccer, and rugby matches. These 
events include repeated close physical contact between players, without PPE or physical 
distancing, over the course of fairly long events, with increased exertion leading to 
greater respiratory effort and production of respiratory droplets. These events also include 
opposing cohorts who only interact during on-field activities. Therefore, these studies 
provide some evidence for the low likelihood of outdoor transmission in other workplace 
activities greatly impacted by the pandemic, such as in construction. 

Mack et al. (January 29, 2021) detailed the National Football League’s complex 
program to assess and prevent transmission, which included devices that recorded 
distance and duration of interactions with others, for the purpose of improving 
identification of individuals with high-risk exposures. Although 329 positive cases were 
identified among roughly 11,400 players and staff, there were no reported cases of on-
field transmission by infected players. The results led the NFL to focus more on reducing 
transmission in indoor settings, including transportation. 
Egger et al. (March 18, 2021) reviewed three soccer matches involving 18 players 
who had SARS-CoV-2; one match involved a team where 44% of the players were 
infected. Video analysis was used to determine the type of contact between players, such 
as contact to face or hand slaps. None of the existing cases were associated with on-field 
play and no secondary transmission from on-the-field contacts was observed. Jones et al. 
(February 11, 2021), evaluated four rugby Super League matches involving eight players 
who were found to be infected with SARS-CoV-2. Using video footage and global 
positioning data, the researchers were able to identify 28 players as high-risk contacts 
with the infected players. These high-risk players together had as many as 32 tackles and 
were within two meters of infected players as often as 121 times during the four matches. 
Of the 28 players noted as high-risk contacts, one became infected with SARS-CoV-2. 
However, researchers determined that the transmission resulted from internal team 
outbreaks and not from exposure on the field. 
OSHA acknowledges that the risk of transmission of SARS-CoV-2 in outdoor 
settings is not zero, and that there may be some low risk to workers 
performing general tasks exclusively in outdoor settings. However, where studies have 
been able to differentiate between indoor and outdoor exposures, they indicate that indoor 
exposures are the much more significant drivers of SARS-CoV-2 infections. Therefore, 
the best available evidence at this time does not provide OSHA with the information 

needed to establish SARS-CoV-2 as a grave danger for general work activities in outdoor 
settings (see Int’l Union, United Auto., Aerospace, & Agr. Implement Workers of Am., 
UAW, 590 F. Supp. at 755-56, describing a “grave danger” as a risk that is more than 
“significant”). Therefore, OSHA has excluded employees who work exclusively outdoors 
from the scope of this ETS (see the Summary and Explanation for Scope and Application, 
Section VI.B. of this preamble).  
c. Employees in Healthcare.
Because OSHA issued a separate grave danger determination several months ago 
for some healthcare workers, some explanation of how its current finding applies to 
healthcare workers is necessary. In June 2021, OSHA issued its Healthcare ETS (86 FR 
32376) after determining that some healthcare workers faced a grave danger of infection 
from SARS-CoV-2. This grave danger determination, along with the protections of the 
Healthcare ETS, applied to healthcare and healthcare support workers in settings where 
people with suspected or confirmed cases of COVID-19 are treated, and was based on the 
increased potential for transmission of the virus in such settings (see 86 FR 32411-
32412). These workers are currently covered by the protections of the Healthcare ETS 
(29 CFR 1910.502).  OSHA does not have data to demonstrate that unvaccinated workers 
in settings covered by the Healthcare ETS face a grave danger from SARS-CoV-2 when 
the requirements of that standard are followed.  However, if the Healthcare ETS were no 
longer in effect, OSHA would consider the workers who were covered by it, and who 
remain unvaccinated, to be at grave danger for the reasons described in this ETS.
OSHA’s new finding of grave danger applies to healthcare and healthcare support 
workers who are not covered by the Healthcare ETS, to the extent they remain 
unvaccinated. In this ETS, as discussed in this section, OSHA has made a broader 
determination of grave danger that applies to most unvaccinated workers, regardless of 
industry. OSHA’s current finding of grave danger supporting this ETS does not depend 

on whether a workplace is one where people with suspected or confirmed COVID-19 are 
expected to be present. Therefore, the finding of grave danger applies to unvaccinated 
workers in healthcare settings that are not covered by 29 CFR 1910.502 to the same 
extent it applies to unvaccinated workers in all other industry sectors.  
d. Employees Who Were Previously Infected with SARS-CoV-2.
OSHA has carefully evaluated the effectiveness of previous SARS-CoV-2 
infections in providing protection against reinfection. This section provides a detailed 
description of the current scientific information in order to ascertain what the best 
available scientific evidence on this topic indicates regarding the risk to individuals with 
previous COVID-19 infections from exposure to SARS-CoV-2.  While the agency 
acknowledges that the science is evolving, OSHA finds that there is insufficient evidence 
to allow the agency to consider infection-acquired immunity to allay the grave danger of 
exposure to, and reinfection from, SARS-CoV-2.  
To determine whether employees with infection-induced immunity from SARS-
CoV-2 (i.e., those who were infected with SARS-CoV-2 but have not been vaccinated) 
face a grave danger, OSHA reviewed the scientific evidence on the protective effects of 
vaccine-induced SARS-CoV-2 immunity versus infection-induced immunity. Individual 
immunity to any infectious disease, including SARS-CoV-2, is achieved through a 
complex response to exposure by the immune system.  This response consists of disease-
specific antibody production guided and augmented by certain types of immune cells, 
such as T and B cells, which work together to neutralize or destroy the disease-causing 
agent. Immune responses to viruses like SARS-CoV-2 can be measured in several ways. 
For instance, blood serum can be taken and exposed to specific proteins found on the 
SARS-CoV-2 virus, in order to measure the presence of antibodies in the blood. Another 
antibody test, the neutralization test, measures the ability of the antibodies present in a 
serum to neutralize infectivity and prevent cells from being infected. T cell immunity can 

be measured using techniques that target a specific biomolecule that is specific to SARS-
CoV-2.
A considerable number of individuals who were previously infected with SARS-
CoV-2 do not appear to have acquired effective immunity to the virus (Psichogiou et al., 
September 13, 2021; Wei et al., July 5, 2021; Cavanaugh et al., August 13, 2021). The 
level of protection afforded by infection-induced immunity appears to depend on the 
severity of individuals’ infections. In a study from Greece, immunogenicity was 
compared between healthcare workers who were vaccinated with Pfizer-BioNTech and 
unvaccinated patients who acquired a natural infection (Psichogiou et al., September 13, 
2021). The researchers found that the immune response in unvaccinated individuals 
correlated to the severity of their disease. Fully vaccinated healthcare workers had 
immune responses (measured as antibody levels specific to SARS-CoV-2) that were 1.3 
times greater than patients who had critical cases of COVID-19 cases, 2.5 times greater 
than patients who had moderate to severe cases, and 10.5 times greater than patients who 
had asymptomatic/mild illnesses. Similarly, another study found that 24.0% (1,742 of 
7,256) of individuals who had a previous SARS-CoV-2 infection were seronegative (i.e., 
did not produce antibodies in response to the virus), suggesting that the previous infection 
provided insufficient protection against future infection (Wei et al., July 5, 2021). 
Individuals who were seronegative were typically older, had lower viral burdens when 
infected, and were more likely to be asymptomatic. The authors posited that the 
immunity of those who were seropositive (i.e., did produce antibodies in response to the 
virus) would provide some measure of protection, but that these individuals would 
benefit from a vaccination booster. This position appears to be validated by a study that 
compared the reinfection rates of individuals in Kentucky based on their post-recovery 
vaccination status (Cavanaugh et al., August 13, 2021). Unvaccinated individuals with 
previous infection were found to be 2.3 times more likely to be reinfected than those who 

were vaccinated after their prior infection. These studies demonstrate not only that those 
with milder infections may not be protected against future infection, but that it is difficult 
to tell, on an individual level, which individuals might have had prior infections that 
conveyed protection equivalent to that provided by vaccination. 
A number of other studies indicate that fully vaccinated individuals may be better 
protected against future infection than those with previous infections. A study in 
Massachusetts concluded that the immunity conveyed from a previous SARS-CoV-2 
infection was effectively equivalent to the immunity of an uninfected individual who has 
had only one dose of an mRNA vaccine (Naranbhai et al., October 13, 2021). The authors 
found that fully vaccinated individuals have an immune response (i.e., antibodies and 
neutralization) well above the levels observed in unvaccinated, previously-infected 
individuals. German researchers found that individuals who were fully vaccinated with 
Pfizer-BioNTech had a significantly greater immune response (as measured by antibody 
levels) than unvaccinated individuals who had infections, concluding that vaccination 
would be needed for those unvaccinated individuals to have similar protection against 
infection (Herzberg et al., June 13, 2021). Similarly, a Dutch study observed that 
vaccination greatly improved the immune response (as measured by antibodies and virus-
specific T cells) of individuals who had recovered from COVID-19 (Geers et al., May 25, 
2021). Planas et al. (August 12, 2021) also noted that immune response (as measured by 
neutralization) to the Alpha, Beta, and Delta (B.1.617.2) variants in unvaccinated, 
previously-infected individuals was considerably less than the immune response in 
individuals five weeks after their second Pfizer-BioNTech dose. When unvaccinated, 
previously-infected individuals were vaccinated, their immune response (as measured by 
neutralization) increased by more than an order of magnitude. Likewise, Wang et al. (July 
15, 2021) found that the immune response (as measured by neutralization) of those with 
previous SARS-CoV-2 infection increased by more than an order of magnitude against 

Alpha (B.1.1.7), Beta (B.1.351), Iota (B.1.526), and Gamma (P.1) variants when they 
were vaccinated. These studies show that infection-induced immunity may not equal the 
protection afforded by vaccination and that vaccination greatly improves the immune 
response of those who were previously infected.
The aforementioned studies indicate that immunity acquired through infection 
appears to be less protective than vaccination.  There are also a number of 
epidemiological studies that provide some evidence that infection-acquired immunity has 
the potential to provide a significant level of protection against reinfection. As OSHA 
discusses in greater detail below, these studies suffer from methodological limitations 
that render them inconclusive about the level of immunity conferred by infection, and 
therefore OSHA is unable to establish that such immunity eliminates grave danger. This 
determination is based in three parts.  
First, the epidemiological literature OSHA reviewed generally suffers from 
selection bias to a degree that it serves as an unreliable basis on which to reach a robust 
conclusion on whether previous infection removes workers from grave danger.  In 
general, the studies described below do not account for people who had mild COVID-19 
infections, leading to study findings regarding the level of protection afforded by prior 
infection that are not generally applicable.  Second, the tests employed in the studies are 
being used in ways that they were not originally designed to be employed.  These tests 
are powerful tools, but there are limitations to their use in determining if a specific 
individual is, in fact, protected from the grave danger of SARS-CoV-2. Particularly 
problematic is the lack of established thresholds to determine full protection from 
reinfection or even a standardized methodology to determine infection severity or 
immune response.  Thus, while these studies broadly establish some increase in 
protectiveness against SARS-CoV-2 among the studied populations, they as yet are 
unable to provide a reasonable degree of certainty on whether the degree of protection 

afforded any particular individual from their prior infection is sufficient to eliminate the 
grave danger from reinfection (see Milne, et al., October 21, 2021.)  Third, while the 
research methodology itself creates difficulties in the context of OSHA’s grave danger 
inquiry, the implications of trying to apply investigative research methodology to clinical 
practice are even more challenging.  The need for the development of standardized 
methods and criteria for establishing sufficient immunity preclude the application of the 
studies’ findings to robust and reliable clinical practice.  These three rationales for 
OSHA’s finding are described in more detail below. 
Several epidemiological studies used previous RT-PCR positive cases to define 
previous infections (Hansen et al., March 27, 2021; Pilz et al., February 11, 2021; Vitale 
et al., May 28, 2021; Pouwels et al., October 14, 2021; Braeye et al., September 15, 2021; 
Hall et al., April 17, 2021). RT-PCR tests, particularly in the beginning of the pandemic, 
were given high priority to discern who seeking medical care was, in fact, infected. For 
instance, the progression of testing from medical needs to more of a community 
perspective is illustrated in Denmark (Vrangbaek et al., April 29, 2021). Denmark, 
considered one of the gold standard countries for its comprehensive testing program, 
missed five infections for every one it identified in the spring of 2020 (Espenhaim et al., 
August 22, 2021). Hansen et al. (March 27, 2021) depended greatly on these first surge 
infection definitions to determine that survivors had protection of 80.5% effectiveness 
during the second surge in Denmark from September through December, 2020. By only 
noting RT-PCR positives from the spring when testing was limited and highly focused on 
health care needs, it seems apparent that the study excluded many less severe cases 
(which are less likely to result in an effective immune response against reinfection), 
leading to results that may suggest greater protection is afforded by infection than in 
actuality.  Even by December of 2020, it appears Denmark’s gold standard 
comprehensive testing approach was only able to capture roughly half of all infections. 

Similar systemic undercounts have also been determined to be true in the United States 
where approximately three out of four infections have never been reported (CDC, July 
27, 2021b). 
It is important to recognize that RT-PCR testing was not implemented to find 
every infection, but was used instead to assist in determining when medical and 
community interventions were necessary.  Infections without symptoms or with mild 
symptoms likely would not require medical intervention and, therefore, would likely not 
be identified via testing. The absence of this population that is more vulnerable to 
reinfection, in these studies, undercuts their usefulness in OSHA’s grave danger analysis, 
because they may overestimate the protectiveness of immunity acquired through 
infection. 
Several other studies in regions less known for their sampling approach than 
Denmark also were heavily dependent on early, limited pandemic RT-PCR testing. An 
Austrian study found a roughly ten-fold decrease in reinfection in survivors of reported 
infections from February to April 30, 2020 in comparison with the general public (Pilz et 
al., February 11, 2021). The authors noted that “infections in the first wave are likely to 
have been far more common than the documented ones” and referred to their results as a 
“rough estimate.” Researchers at the Cleveland Clinic also found a reduced rate of 
reinfection in those who had a reported previous infection compared with those with no 
prior infection (13.8% infection rate for those previously uninfected and 4.9% infection 
rate for those previously infected), but noted that testing was limited in that the 
“Cleveland Clinic did not test asymptomatic patients unless they were admitted to 
hospital or undergoing a procedure/surgery” (Sheehan et al., March 15, 2021). These 
criteria for testing create uncertainty in determining the level of effectiveness previous 
infection provides against SARS-CoV-2 because many individuals with asymptomatic 
infections would not have been tested. Similar issues are also found in studies on 

populations in Italy, Belgium, and the UK (Vitale et al., May 28, 2021; Braeye et al., 
September 15, 2021; Pouwels et al., October 14, 2021).  
To avoid the well-known problems with RT-PCRs defining previous infection, 
other studies have defined previous infection as testing positive for antibodies specific for 
SARS-CoV-2 (Lumley et al., February 11, 2021; Abu-Raddad et al., April 28, 2021; Hall 
et al., April 17, 2021). As noted above, previous infection does not necessarily result in a 
seropositive outcome; one study indicated that nearly a quarter (24%) of those infected 
with SARS-CoV-2 subsequently showed no sign of an immune response in SARS-CoV-
2-specific antibody testing (Wei et al., July 5, 2021). Therefore, studies only considering 
seropositive individuals are in essence studying only the individuals most likely to have 
protection from reinfection. Lumley et al. (February 11, 2021) found that those having a 
seropositive response had almost an order of magnitude fewer infections (e.g., 0.11 
adjusted incidence rate ratio).  Likewise, Abu-Raddad et al. (April 28, 2021) found that 
seropositive individuals were reinfected less (0.7%) during their study period in 
comparison to seronegative individuals (3.09%). In addition to the bias associated with 
using antibodies to determine previous infection, the authors also noted that there may 
have been issues with being able to document cases with mild or no symptoms. 
Hall et al. (April 17, 2021) cast a wider net by defining previous infection to 
include both positive RT-PCR tests and seropositivity. The researchers found that those 
who were considered previously infected had an 84% lower risk of infection compared to 
those who were unvaccinated with no record of infection. While the study does attempt to 
capture as many previously-infected individuals as possible, this does not actually 
address the weaknesses of each method. Those with less severe infections were less likely 
to have sought out or been able to get an RT-PCR test during the first surge, which is 
when an overwhelming number of the previous infections were recorded in this study 
(March through May, 2020). Additionally, the less severe infections that are most likely 

underrepresented in the study appear to be the ones that are less likely to produce 
seropositivity. Shenai et al. (September 21, 2021) pooled several studies with the above 
issues and concluded that immunity acquired through a previous infection from SARS-
CoV-2 may be as protective as, or more protective than, the immunity afforded by 
vaccination to an individual without previous infection. However, authors of several of 
those underlying studies used in the analysis noted that their studies were limited by not 
having the capability to fully account for asymptomatic infections (the aforementioned 
Lumley et al., July 3, 2021; Gazit et al., August 25, 2021; Shrestha et al., June 19, 2021). 
As noted earlier, infection severity appears to be correlated with the robustness of 
immunity acquired through that infection, so the failure to account for asymptomatic 
infections may mean that this finding is related to the protection afforded by more severe 
disease. While pooled analyses can be utilized to make powerful observations, those 
observations are highly dependent upon the underlying studies not sharing the same 
methodological weakness which, in this case, was the studies’ exclusion of asymptomatic 
infections. 
 Moreover, while the evidence suggests that severe infection may provide 
significant protection against reinfection in some cases (Milne et al., October 21, 2021), 
the level of protection cannot be determined on an individual basis.  The studies 
discussed above are based on tests that show only whether a person was or was not 
infected and provide no information about the severity of the infection. Because the 
studies are likely biased towards those who had a relatively serious infection, their 
findings cannot be generalized to all individuals with prior infections.
RT-PCR and antibody testing are powerful tools with many clinical and research 
applications. However, the application of these tools cannot determine what degree of 
protection a particular individual has against SARS-CoV-2 without a great deal of 
additional study concerning thresholds establishing individual immunity. Therefore, these 

tools are not yet able to assist OSHA in making more nuanced findings about which 
workers who had COVID-19 previously are at grave danger.  There is no established 
threshold to determine full protection from reinfection or a standardized methodology to 
determine infection severity or immune response.  Studies use Ct threshold to 
approximate viral loads and infer disease severity, but that metric depends on many 
variables (e.g. time of collection during infection, quality of collection, handling of 
sample, specifics of the test protocol and materials, precision in performing the protocol) 
that are often of far less importance when it is used as a crude diagnostic to determine the 
presence of an infection. In other words, it is reasonable to say that the lower the Ct 
count, the greater the likelihood that an individual is at a lower reinfection risk; however, 
the Ct count is greatly dependent on the RT-PCR test used, and how different laboratories 
may run that test, which cannot be discerned. Similarly, research needs to be done to 
better identify the minimum protective threshold of anti-SARS-CoV-2 serum neutralizing 
antibodies (Milne et al., October 21, 2021). Thus, these studies currently do not allow 
OSHA to determine, with a reasonable degree of certainty, how much protection 
employees with prior infections have against reinfection.
Furthermore, while the research methodology itself raises challenges in making 
the grave danger determination, the implications of trying to apply investigative research 
methodology to clinical practice are even more difficult.  The lack of standardized 
methods and standardized measures for immunity preclude their application to robust and 
reliable clinical practice.  One major drawback discussed above is that, in contrast to 
vaccine studies where researchers know who was vaccinated with a standardized dosing 
regime, scientific inquiries likely will not be able to identify most individuals who were 
infected, the degree of disease experienced for those with a confirmed infection, and the 
immunity against reinfection. As of October 18, 2021, several RT-PCR assays have been 
authorized without standardization or assessment with respect to measuring disease 

severity (FDA, October 18, 2021).  As noted above, the use of the Ct threshold to 
approximate viral loads and infer disease severity is unreliable.  As the FDA notes, the 
same is true about antibody tests, which are considered to be poor indicators for 
individuals to use to determine whether they are protected from reinfection (FDA, May 
19, 2021). There are many different SARS-CoV-2-specific antibody tests that focus on 
different specificity. Not only are the outcomes of these tests not directly comparable to 
each other, but the specificity of these tests is not related to any notion of protection 
against reinfection. It can be reasonably said that a greater antibody response means a 
greater likelihood of protection against infection, but, again, the science is not clear what 
those thresholds are and whether a threshold would be comparable between laboratories. 
At this point in time, even if OSHA determined that some individuals with prior 
infections are not at grave danger from exposure to SARS-CoV-2, there is no agreement 
on what indicators of infection might be sufficient to confer this level of immunity or 
how a healthcare provider or employer could document that a certain level of immunity 
had been achieved.
  Based on the best available evidence described above, OSHA concludes that 
while some individuals who were infected with SARS-CoV-2 may have significant 
protection from subsequent infections, the level of protection afforded by infection may 
be significantly impacted by the severity of the infection and some previously infected 
individuals may have no future protection at all. In addition, given the limitations of the 
studies described above, there is considerable uncertainty as to whether any given 
individual is adequately protected against reinfection. Furthermore, the level of 
protection, if any, provided by a given person’s SARS-CoV-2 infection cannot be 
ascertained based on currently-available testing methods. Therefore, OSHA finds that the 
requirements of this ETS are necessary to protect unvaccinated individuals who had prior 
SARS-CoV-2 infections from the grave danger from exposure to SARS-CoV-2.

OSHA recognizes that its finding regarding infection-induced immunity is being 
made in an area of inquiry that is currently on the “frontiers of scientific knowledge” 
(Indus. Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S. 607, 656 (1980)).  For 
these reasons, OSHA finds that those who have previously been infected with SARS-
CoV-2 and are not yet fully vaccinated are at grave danger from SARS-CoV-2 exposure 
and that it is necessary to protect these workers via vaccination, or testing and the use of 
face coverings, under this standard. OSHA will continue to follow developments on this 
issue, however, and make appropriate adjustments to this ETS if the evidence warrants. 
VI. Conclusion.
OSHA finds that many employees in the U.S. who are not fully vaccinated against 
COVID-19 face a grave danger from exposure to SARS-CoV-2 in the workplace. 
OSHA’s determination is based on the severe health consequences of exposure to the 
virus, including death; powerful lines of evidence demonstrating the transmissibility of 
the virus in the workplace; and the prevalence of infections in employee populations. 
With respect to the grave health consequences of exposure to SARS-CoV-2, 
OSHA has found that regardless of where and how exposure occurs, COVID-19 can 
result in death. Even for those who survive a SARS-CoV-2 infection, the virus can cause 
serious, long-lasting, and potentially permanent health effects. Serious cases of COVID-
19 require hospitalization and dramatic medical interventions, and might leave employees 
with permanent and disabling health effects. Both death and serious cases of COVID-19 
requiring hospitalization provide independent bases for OSHA’s finding of grave danger.  
The evidence is clear that the safe and effective vaccines authorized and/or approved for 
use in the United States greatly reduce the likelihood of these severe outcomes. 
The best available evidence on the science of transmission of the virus makes 
clear that SARS-CoV-2 is transmissible from person to person in shared workplace 
settings. The likelihood of transmission can be exacerbated by common characteristics of 

many workplaces, including working indoors, working with others for extended periods 
of time, poor ventilation, and close contact with potentially infectious individuals. The 
likelihood of transmission in the workplace is also exacerbated by the presence of 
unvaccinated workers, who are more likely than those who are vaccinated to be infected 
and transmit the virus to others. Every workplace SARS-CoV-2 exposure or transmission 
has the potential to cause severe illness or even death, particularly in unvaccinated 
workers. Taken together, the severe health consequences of COVID-19 and the evidence 
of its transmission in environments characteristic of the workplaces covered by this ETS 
demonstrate that exposure to SARS-CoV-2 represents a grave danger to unvaccinated 
employees in many workplaces throughout the country.  
The existence of a grave danger to employees from SARS-CoV-2 is further 
supported by the toll the pandemic has already taken on the nation as a whole and the 
number of workers who remain unvaccinated. Although OSHA cannot state with 
precision the total number of workers in our nation who have contracted COVID-19 at 
work and became sick or died, COVID-19 has killed 723,205 people in the United States 
as of October 18, 2021 (CDC, October 18, 2021 – Cumulative US Deaths). That death 
toll includes 131,478 people who were 18 to 64 years old, prime working age (CDC, 
October 18, 2021 – Demographic Trends, Deaths by Age Group). OSHA estimates that 
there are over 26 million workers subject to the rule who remain unvaccinated at present 
and therefore are in grave danger. As a result of this ETS, the agency estimates that 72% 
of them will be vaccinated (see OSHA, October 2021c).
Current mortality data shows that unvaccinated people of working age have a 1 in 
202 chance of dying when they contract COVID-19 (CDC, October 18, 2021 – 
Demographic Trends, Cases by Age Group; Demographic Trends, Deaths by Age 
Group). As of October 18, 2021, close to 45 million people in the United States have 
been reported to have infections, and thousands of new cases were being identified daily 

(CDC, October 18, 2021 – Daily Cases).One in 14 reported cases of COVID-19 in people 
ages 18 to 64 becomes severe and requires hospitalization (CDC, October 18, 2021 – 
Demographic Trends, Cases by Age; Total Hospitalizations, by Age). Moreover, public 
health officials agree that these numbers fail to show the full extent of the deaths and 
illnesses from this disease, and racial and ethnic minority groups are disproportionately 
represented among COVID-19 cases, hospitalizations, and deaths (CDC, December 10, 
2020; CDC, May 26, 2021; Escobar et al., February 9, 2021; Gross et al., October 2020; 
McLaren, June 2020; CDC, October 6, 2021). Given this context, OSHA is confident in 
its finding that exposure to SARS-CoV-2 poses a grave danger to the employees covered 
by this ETS.
The above analysis fully satisfies the OSH Act’s requirements for finding a grave 
danger. Although OSHA usually performs a quantitative risk assessment based on 
extrapolations among exposure levels before promulgating a health standard under 
section 6(b)(5) of the OSH Act (29 U.S.C. 655(b)(5)), that type of analysis is not 
necessary in this situation. OSHA has most often invoked section 6(b)(5) authority to 
regulate exposures to chemical hazards involving much smaller populations, many fewer 
cases, extrapolations from animal evidence, long-term exposure, and delayed effects. In 
those situations, mathematical modelling is necessary to evaluate the extent of the risk at 
different exposure levels. The gravity of the danger presented by a disease with acute 
effects like COVID-19, on the other hand, is made obvious by a straightforward count of 
deaths and illnesses caused by the disease, which reach sums not seen in at least a 
century. The evidence compiled above amply supports OSHA’s finding that SARS-CoV-
2 presents a grave danger in American workplaces. In the context of ordinary 6(b) 
rulemaking, the Supreme Court has said that the OSH Act is not a “mathematical 
straitjacket,” nor does it require the agency to support its findings “with anything 
approaching scientific certainty,” particularly when operating on the “frontiers of 

scientific knowledge” (Indus. Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S. 
607, 655-56 (1980)). This is true a fortiori in the current national crisis, where OSHA 
must act to ensure employees are adequately protected from the hazard presented by the 
COVID-19 pandemic (see 29 U.S.C 655(c)(1)).The grave danger from SARS-CoV-2 
represents the biggest threat to employees in OSHA’s more than 50-year history. The 
threat applies to employees in all sectors covered by OSHA, including general industry, 
construction, maritime, agriculture, and healthcare. Having made the determination of 
grave danger, as well as the determination that an ETS is necessary to protect employees 
from exposure to SARS-CoV-2 (see Need for the ETS, Section III.B. of this preamble), 
OSHA is required to issue this standard to protect employees from getting sick or dying 
from COVID-19 acquired at work (see 29 U.S.C. 655(c)(1)). 
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B. Need for the ETS

This ETS is necessary to protect unvaccinated workers from the risk of 
contracting COVID-19, including its more contagious variants, such as the B.1.617.2 
(Delta), at work. The rule protects workers through the most effective and efficient 
workplace control available: vaccination. Additionally, this ETS is necessary to protect 
workers who remain unvaccinated through required regular testing, use of face coverings, 
and removal of infected employees from the workplace.  
I.  Events Leading to the ETS.
This section describes the evolution of OSHA’s actions to protect employees from 
the grave danger posed by COVID-19 and the agency’s reasons for issuing this ETS at 
this time. 
a. OSHA’s 2020 actions regarding COVID-19.   
Beginning in early 2020, OSHA began to monitor the growing cases of the SARS 
–CoV-2 virus that were occurring around the country. Because scientific information 
about the disease, its potential duration, and ways to mitigate it were undeveloped, OSHA 
decided to monitor the situation. As noted below, OSHA subsequently issued numerous 
guidance documents advising interested employers of steps they could take to mitigate 
the hazard arising from the virus.
Also beginning in early 2020, OSHA received numerous petitions and supporting 
letters from members of Congress, unions, advocacy groups, and one group of large 
employers urging the agency to take immediate action by issuing an ETS to protect 
employees from exposure to the virus that causes COVID-19 (Scott and Adams, January 
30, 2020; NNU, March 4, 2020; AFL-CIO, March 6, 2020; Menendez et al., March 9, 
2020; Wellington, March 12, 2020; DeVito, March 12, 2020; Carome, March 13, 2020; 
SMART, March 30, 2020; Blumenthal et al., April 8, 2020; Murray et al., April 29, 2020; 
Luong, April 30, 2020; Novoa, June 24, 2020; Solt, April 28, 2020; Castro et al., April 
29, 2020; Talbott and Adely, May 4, 2020; Public Citizen, March 13, 2020; LULAC, 

March 31, 2020; Meuser, May 1, 2020; Raskin, April 29, 2020; Cartwright et al., May 7, 
2020; Frosh et al., May 12, 2020; Pellerin, March 19, 2020; Yborra, March 19, 2020; 
Owen, March 19, 2020; Brown et al., April 30, 2020; Price et al., May 1, 2020; 
ORCHSE, October 9, 2020). These petitions and supporting letters argued that many 
employees had been infected because of workplace exposures to the virus that causes 
COVID-19, and that immediate, legally enforceable action is necessary for protection.  
OSHA quickly began issuing detailed guidance documents and alerts beginning in March 
2020 that helped employers to determine employee risk levels of COVID-19 exposure 
and made recommendations for appropriate controls. As explained in detail in Section IV. 
of the Healthcare ETS, 86 FR 32376, 32412-13 (June 21, 2021) and hereby included in 
the record for this ETS16, at the time, OSHA leadership believed that implementing a 
combination of enforcement tools, including guidance, existing OSHA standards, and the 
General Duty Clause, would provide the necessary protection for workers. OSHA also 
expressed concern that an ETS might unintentionally enshrine requirements that are 
subsequently proven ineffective in reducing transmission. 
When it decided not to issue an ETS in the spring of 2020, OSHA determined that 
the agency could provide sufficient employee protection against COVID-19 through 
enforcing existing workplace standards and the General Duty Clause of the OSH Act, 
coupled with issuing industry-specific, non-mandatory guidance.  However, in doing so 
OSHA indicated that its conclusion that an ETS was not necessary was specific to that 
time, and that the agency would continue to monitor the situation and take additional 
steps as appropriate (see, e.g., OSHA, March 18, 2020 Letter to Congressman Scott 
(stating “[W]e currently see no additional benefit from an ETS in the current 
circumstances relating to COVID-19. OSHA is continuing to monitor this quickly 
16 This adoption includes the citations in the referenced section of the Healthcare ETS, which are also 
included in the docket for this ETS.

evolving situation and will take the appropriate steps to protect workers from COVID-19 
in coordination with the overall U.S. government response effort.” (emphasis supplied); 
DOL May 29, 2020 at 20 (stating “OSHA has determined this steep threshold [of 
necessity] is not met here, at least not at this time.” (emphasis supplied))).  
In addition to the various petitions for rulemaking that were submitted to OSHA, 
the AFL-CIO filed a petition for a writ of mandamus with the U.S. Court of Appeals for 
the D.C. Circuit, requesting that the court compel OSHA to issue an ETS. (AFL-CIO, 
May 18, 2020). In its administrative decision and filing in that case, OSHA explained that 
the determination not to issue an ETS was based on the conditions and information 
available to the agency at that time and was subject to change as additional information 
indicated the need for an ETS. On June 11, 2020, the U.S. Court of Appeals for the D.C. 
Circuit issued a one paragraph per curiam order denying the AFL-CIO’s petition to 
require OSHA to issue an ETS. To be clear, nothing in OSHA’s prior position or the D.C. 
Circuit’s decision in In re Am. Fed’n of Labor & Cong. of Indus. Orgs., No. 20-1158, 
2020 WL 3125324 (D.C. Cir. June 11, 2020); rehearing en banc denied (July 28, 2020) 
precludes OSHA’s decision to promulgate an ETS now.  To the contrary, at an early 
phase of the pandemic, when vaccines were not yet available and when it was not yet 
known how extensive the impact would be on illness and death, the court decided not to 
second-guess OSHA’s decision to hold off on regulation in order to see if its 
nonregulatory enforcement tools could be used to provide adequate protection against the 
virus.  “OSHA’s decision not to issue an ETS is entitled to considerable deference,” the 
court explained, noting “the unprecedented nature of the COVID-19 pandemic” and 
concluding merely that “OSHA reasonably determined that an ETS is not necessary at 
this time.” (Id., with emphasis added).
Employers do not have a reliance interest in OSHA’s prior decision not to issue 
an ETS on May 29, 2020, which did not alter the status quo or require employers to 

change their behavior. See Dep’t of Homeland Security v. Regents of the Univ. of 
California, 140 S. Ct. 1891, 1913–14 (2020). As OSHA indicated when it made the 
decision, the determination was based on the conditions and information available to the 
agency at that time and was subject to change as additional information indicated the 
need for an ETS. In light of the agency’s express qualifications and the surrounding 
context, any employer reliance would have been unjustified and cannot outweigh the 
countervailing urgent need to protect workers covered by this ETS from the grave danger 
posed by COVID–19.
b. OSHA’s Decision to Promulgate a Healthcare ETS. 
OSHA subsequently issued the Healthcare ETS to protect healthcare workers. 86 
FR 32376. (June 21, 2021), codified at 29 CFR 1910.502. Looking back on a year of 
experience, OSHA found that its enforcement efforts had encountered significant 
obstacles, demonstrating that existing standards, regulations, and the General Duty 
Clause were inadequate to address the grave danger faced by healthcare employees. 86 
FR 32415. In promulgating that ETS, OSHA recognized that “the impact of [COVID-19] 
has been borne disproportionately by the healthcare and healthcare support workers 
tasked with caring for those infected by this disease.” 86 FR 32377. Furthermore, states 
and localities had taken increasingly divergent approaches to workplace protections 
against COVID-19, making it clear that a federal standard was needed to ensure sufficient 
protection in all states. 86 FR 32377. Therefore, OSHA focused on the unique situation 
experienced by healthcare industry workers as the frontline caregivers and support 
workers for those suffering from COVID-19. See 86 FR 32376, 32411-12. 
The Healthcare ETS requires employers to institute a suite of engineering 
controls, administrative controls, work practices, and personal protective equipment to 
combat the COVID-19 hazard. In the Preamble to the Healthcare ETS, OSHA observed 
that the development of safe and highly effective vaccines is a critical milestone in the 

nation’s response to COVID-19, and that fully vaccinated persons have a greatly reduced 
risk of death, hospitalization and other health consequences.  86 FR 32396. The 
Healthcare ETS therefore includes provisions intended to encourage employees to 
become vaccinated, including a requirement for employers to provide reasonable paid 
leave for vaccination and recovery from any side effects. 86 FR 32415, 29 CFR 
1910.502(m). 
In the Healthcare ETS OSHA found that employees who work in covered 
healthcare workplaces are exposed to grave danger. 86 FR 32411. The agency also stated 
that in light of the effectiveness of vaccines, there was “insufficient evidence in the 
record to support a grave danger finding for non-healthcare workplaces where all 
employees are vaccinated.” 86 FR 32396 (emphasis supplied). OSHA made no finding 
at that time regarding unvaccinated workers in non-healthcare workplaces. 
No employer challenged the Healthcare ETS in court. The United Food and 
Commercial Workers Union (UFCW) together with the AFL-CIO filed a petition for 
review asserting that the rule should have gone further and included more industries in its 
scope (UFCW and AFL-CIO, June 24, 2021). That case is being held in abeyance 
pending the issuance of this ETS. 
c. Subsequent Developments.
The preamble to the Healthcare ETS notes that new COVID-19 variants might 
emerge that are more transmissible and cause more severe illness, but does not 
specifically mention the Delta Variant. See 86 FR 32384. Since publication of the 
Healthcare ETS, the Delta Variant has become the dominant form of the virus in the 
United States, causing large spikes in transmission, and surges of hospitalizations, and 
deaths, overwhelmingly among the unvaccinated (CDC, August 26, 2021; CDC, October 
18, 2021 – Variant Proportions, July Through October, 2021).  As discussed in more 
detail in Grave Danger (Section III.A. of this preamble), the Delta Variant is at least 

twice as contagious as previous COVID-19 variants, and research suggests that it also 
causes more severe illness in the unvaccinated population (CDC, August 26, 2021). More 
infections mean more potential for exposures, including in workplaces (see Grave 
Danger, Section III.A. of this preamble, for further discussion on workplace outbreaks, 
clusters, and the general impact of transmission in the workplace.). More infections also 
mean more opportunities for the virus to undergo mutations to its genetic code, resulting 
in genetic variants with the potential to infect or re-infect people.  
Some variability in infection rates in a pandemic is to be expected.  While the 
curves of new infections and deaths can bend down after peaks, they often reverse course 
only to reach additional peaks in the future (Moore et al., April 30, 2020). Last year 
experts expressed concern that one or more subsequent waves of COVID-19 were 
possible in 2021 (Moore et al., April 30, 2020), especially with new variants of COVID-
19 in circulation (Doughton, February 9, 2021). That potential tragically became a reality 
with the spread of the Delta Variant. 
 
In June 2021, when the Healthcare ETS was published, COVID-19 transmission 
rates in the United States were at a low point, with the 7-day moving average of reported 
cases to be about 12,000. (CDC, August 26, 2021) However, by the end of July, the 7-day 
moving average reached over 60,000 as the Delta Variant spread across the country. 
(CDC, August 26, 2021). The 7-day moving average of reported cases at the beginning of 
September, 2021 exceeded 161,000 (CDC, October 18, 2021 – Daily Cases). The most 
recent 7-day moving average of reported cases, while lower than the peak in late August 
and early September, is still over 85,000. (CDC, October 18, 2021 – Daily Cases). These 
rates are also far higher than the rate when OSHA first declined to issue an ETS. (CDC, 
August 27, 2020 (20,401 confirmed cases per day on May 29, 2020)). The jump in 
infections has resulted in increased hospitalizations and deaths for unvaccinated workers, 
as discussed in detail in Grave Danger (Section III.A. of this preamble). While the most 

current data reflect a decline in new cases from the peak, the level of new cases remains 
high. CDC data shows that, as of October 18, 2021, approximately 85% of U.S. counties 
were experiencing “high” rates of community transmission, and another 10% were 
experiencing “substantial” community transmission (CDC, October 18, 2021 – Daily 
Cases).  Although the number of new detected cases is currently declining nationwide 
(see CDC, October 18, 2021 – Community Transmission Rates), the agency cannot 
assume based on past experience that nationwide case levels will not increase 
again.  Indeed, many northern states are currently experiencing increases in their rate of 
new cases (see CDC, October 18, 2021 – Cases, Deaths, and Laboratory Testing 
(NAATS) by State; Slotnik, October 18, 2021), including Vermont, which set a new 
record for new COVID-19 cases in mid-October 2021 (Murray, October 18, 2021). 
Unless vaccination rates increase, the experience of northern states during this fall could 
presage a greater resurgence in cases this winter as colder weather drives more 
individuals indoors (see Firozi and Dupree, October 18, 2021).    
While it is important to recognize that the Delta Variant has caused a spike in 
hospitalization and death in the United States, the SARS-CoV-2 virus, and not just a 
particular variant of that virus, is the hazard that workers face (see Grave Danger, 
Section III.A. of this preamble). Like any virus, SARS-CoV-2 has the ability to mutate 
over time and produce variants that may be more or less severe. Indeed, the World Health 
Organization and the CDC both track new variants that have continued to arise, such as 
the Lamda and Mu Variants (WHO, October 12, 2021; CDC, October 4, 2021). At this 
time, the CDC is tracking 11 different variants of COVID-19 (CDC, October 4, 2021).  
The World Health Organization has classified the Lambda and Mu variants as “variants 
of interest,” meaning that they have genetic changes that affect transmissibility, disease 
severity, immune escape, diagnostic or therapeutic escape; and have been identified to 
cause significant community transmission or multiple COVID-19 clusters, in multiple 

countries with increasing relative prevalence alongside increasing number of cases over 
time, or other apparent epidemiological impacts to suggest an emerging risk to global 
public health (WHO, October 12, 2021). Medical experts have also explained that 
vaccination reduces the opportunities for the virus to continue to mutate by reducing 
transmission and length of infection. And, there is no indication that future variants of 
COVID-19 will not be equally or even more dangerous than Delta without a higher rate 
of vaccination (Bollinger and Ray, July 23, 2021). 
Meanwhile, evidence on the power of vaccines to safely protect individuals from 
infection and especially from serious disease has continued to accumulate. (CDC, May 
21, 2021). For example, as explained in more detail in Grave Danger (Section III.A. of 
this preamble), multiple studies have demonstrated that vaccines are highly effective at 
reducing instances of hospitalization and death.  In September the CDC compiled data 
from various studies that demonstrated overall authorized vaccines reduced death and 
severe case rates by 91 and 92% respectively in the population studied between April and 
July (Scobie et al., September 17, 2021, Table 1.). Additionally, the FDA granted 
approval to the Pfizer-BioNTech COVID-19 Vaccine for individuals 16 years of age and 
older on August 23, 2021 (FDA, August 23, 2021). In announcing the decision, the FDA 
Commissioner explained that “[w]hile this and other vaccines have met the FDA’s 
rigorous, scientific standards for emergency use authorization, as the first FDA-approved 
COVID-19 vaccine, the public can be very confident that this vaccine meets the high 
standards for safety, effectiveness, and manufacturing quality the FDA requires of an 
approved product.” (FDA, August 23, 2021.) 
Despite this important milestone, and the demonstrated effectiveness of the 
approved and authorized vaccines available to the public, millions of employees remain 
unvaccinated, approximately 39% of workers who are covered by this ETS (See 
Economic Analysis, Section IV.B. of this ETS). The rate of vaccination in the United 

States has slowed significantly from its peak in April, when the daily number of 
vaccination doses administered exceeded three million at one point. In recent months, 
daily vaccination rates have hovered around one million doses administered, or lower 
(CDC, October 18, 2021 – Daily Vaccination Rate). The shortfall in vaccination leaves 
the nation’s working population vulnerable to sickness, hospitalization and death, 
whether today under the Delta Variant, or under future variants that may arise (CDC, 
October 18, 2021 – Daily Vaccination Rate); see also Grave Danger (Section III.A. of 
this preamble). 
Moreover, in recent months, an increasing number of states have promulgated 
Executive Orders or statutes that prohibit workplace vaccination policies that require 
vaccination or proof of vaccination status, thus attempting to prevent employers from 
implementing the most efficient and effective method for protecting workers from the 
hazard of COVID-19 (see, e.g., Texas Executive Order GA-40, October 11, 2021; 
Montana H.B. 702, July 1, 2021; Arkansas S.B. 739, October 4, 2021 and Arkansas H.B. 
1977, October 1, 2021; AZ Executive Order 2021-18, August 16, 2021). While some 
States’ bans have focused on preventing local governments from requiring their public 
employees to be vaccinated or show proof of vaccination, the Texas, Montana, and 
Arkansas requirements apply to private employers as well. Other states have banned local 
ordinances that require employers to ensure that customers who enter their premises wear 
masks, thus endangering the employees who work there, particularly those who are 
unvaccinated (see, e.g., Florida Executive Order 21-102, May 3, 2021; Texas Executive 
Order GA-34, March 2, 2021). 
In short, at the present time, workers are becoming sick and dying unnecessarily 
as a result of occupational exposures, when there is a simple and effective measure, 
vaccination, that can largely prevent those deaths and illnesses (see Grave Danger, 
Section III.A. of this preamble). Congress charged OSHA with responsibility for issuing 

emergency standards when they are necessary to protect employees from grave danger. 
29 U.S.C. 655(c).  In light of the current situation, OSHA is issuing this emergency rule. 
References:
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American Federation of Labor and Congress of Industrial Organizations (AFL-CIO). 
(2020, May 18).  “Emergency Petition For A Writ Of Mandamus, and Request For 
Expedited Briefing And Disposition, No. 19-1158.” (AFL-CIO, May 18, 2020)
An Act Prohibiting Discrimination Based on a Person’s Vaccination Status or Possession 
of an Immunity Passport; Montana H.B. 702. (2021, July 1). 
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Arizona Executive Order 2021-18. (2021, August 16). 
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Arkansas H.B. 1977. (2021, October 1). To Provide Employee Exemptions From Federal 
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Mandates and Employer Mandates Related to Coronavirus 2019 (COVID-19); To 
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(2020, April 8). “COVID-19 ETS Petition.” (Blumenthal et al., April 8, 2020)
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Should Know. Johns Hopkins Medicine. 
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Blumenthal R, Van Hollen C, Masto CC, Sanders B, Reed J, Harris KD, Wyden R, 
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Petition.” (Brown et al., April 30, 2020)
Carome M. (2020, March 13). “Letter requesting an immediate OSHA emergency 
temporary standard for infectious disease.” (Carome, March 13, 2020)
 

Cartwright M, Kaptur M, Roybal-Allard L, Foster B. (2020, May 7). “COVID-19 ETS 
Petition.” (Cartwright et al., May 7, 2020)
Castro J, Espaillat A, Cárdenas T, Ocasio-Cortez A, Sablan GKC, Garcia J, Gallego R, 
Escobar V, Vargas J, Trahan L, Torres NJ, Correa L, Barragán ND, Serrano JE, Cisneros 
Jr. GR, Napolitano GF, Velazquez NM, Garcia SR, Grijalva R. (2020, April 29). 
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Centers for Disease Control and Prevention (CDC). (2020, August 27). Previous U.S. 
Covid-19 Case Data.  https://www.cdc.gov/coronavirus/2019-ncov/covid-
data/previouscases.html. (CDC, August 27, 2020)
Centers for Disease Control and Prevention (CDC). (2021, May 21). Interim Estimates of 
Vaccine Effectivness of Pfizer-BioNTech and Moderna COVID-19 Vaccines Among 
Health Care Personnel – 33 U.S. Sites, January-March 2021. 
https://www.cdc.gov/mmwr/volumes/70/wr/mm7020e2.htm. (CDC, May 21, 2021)
Centers for Disease Control and Prevention (CDC). (2021, August 26). Delta Variant: 
What We Know About the Science. https://www.cdc.gov/coronavirus/2019-
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Centers for Disease Control and Prevention (CDC). (2021, October 4). SARS-CoV-2 
Variant Classifications and Definitions. https://www.cdc.gov/coronavirus/2019-
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Centers for Disease Control and Prevention (CDC). (2021, October 18). COVID Data 
Tracker. https://covid.cdc.gov/covid-data-tracker/. (CDC, October 18, 2021)
DeVito J. (2020, March 12). “Grant OSHA emergency standard for COVID-19 to protect 
frontline workers.” (DeVito, March 12, 2020)
Doughton S. (2021, February 9). Can a fourth wave of COVID-19 be prevented? Not 
likely, says Fred Hutch model – but the curve could be flattened. The Seattle Times. 
https://www.seattletimes.com/seattle-news/health/can-a-fourth-wave-of-covid-19-be-
prevented-not-likely-says-fred-hutch-model-but-the-curve-could-be-flattened/. 
(Doughton, February 9, 2021)
Firozee P and Dupree J. (2021, October 18). Coronavirus numbers are dropping. More 
vaccinations can prevent a winter surge, Fauci says. The Washington Post. 
https://www.washingtonpost.com/health/2021/10/18/faucis-americans-can-prevent-
winter-pandemic-surge/. (Firozee and Dupree, October 18, 2021)
Florida Executive Order 21-102. (2021, May 3). https://www.flgov.com/wp-
content/uploads/orders/2021/EO_21-102.pdf. (Florida Executive Order 21-102, May 3, 
2021)
Food and Drug Administration (FDA) (2021, August 23). FDA Approves First COVID-
19 Vaccine.  https://www.fda.gov/news-events/press-announcements/fda-approves-first-
covid-19-vaccine. (FDA, August 23, 2021)

Frosh BE, Becerra X, Weiser PJ, Jennings K, Racine KA, Raoul K., Frey AM, Healey 
M., Nessel D, Ellison K, Ford AD, Grewal GS, Balderas H, James L, Rosenblum EF, 
Shapiro J, Neronha P, Herring MP, Ferguson B, Kaul JL. (2020, May 12). “COVID-19 
ETS Petition.” (Frosh et al., May 12, 2020)
League of United Latin American Citizens (LULAC). (2020, March 31). “COVID-19 
ETS Petition.” (LULAC, March 31, 2020)
Luong M. (2020, April 30). “Petition for an OSHA Emergency Temporary Standard for 
Airborne Infectious Diseases.” (Luong, April 30, 2020)
Menendez R, Murray P, Baldwin T, Brown S, Duckworth T, Booker CA, Warren E. 
(2020). “Urge DOL to Direct OSHA to Issue Comprehensive Emergency Temporary 
Standard (ETS) To Protect Workers Against COVID-19.” (Menendez et al., March 9, 
2020)
 
Meuser D. (2020, May 1). “COVID-19 ETS Petition.” (Meuser, May 1, 2020)
Moore KA et al. (2020, April 30). COVID-19: The CIDRAP Viewpoint. Part 1: The 
Future of the COVID-19 Pandemic: lessons Learned from Pandemic 
Influenza. University of Minnesota Center for Infectious Disease Research and Policy. 
https://www.cidrap.umn.edu/sites/default/files/public/downloads/cidrap-covid19-
viewpoint-part1_0.pdf. (Moore et al., April 30, 2020)
Murray E. (2021, October 18). Vermont sets new positive COVID daily case record as 
delta surge continues. Burlington Free Press. 
https://www.burlingtonfreepress.com/story/news/local/2021/10/18/covid-vermont-new-
daily-positive-case-record-set/8505021002/. (Murray, October 18, 2021)
Murray P, Brown S, Heinrich M, Brown S, Blumenthal R., Markey EJ, Van Hollen C, 
Durbin RJ, Smith T, Whitehouse S, Wyden R, King Jr. AS, Kaine T, Reed J, Menedez R, 
Gillibrand K, Duckworth T, Warren E, Hassan MW, Casey Jr. RP, Sanders B, Udall T, 
Hirono MK, Harris KD, Feinstein D, Klobuchar A, Booker CA, Shaheen J, Cardin B. 
(2020, April 29). “COVID-19 ETS Petition.” (Murray et al., April 29, 2020)
National Nurses United (NNU). (2020, March 4). "National Nurses United Petitions 
OSHA for an Emergency Temporary Standard on Emerging Infectious Diseases in 
Response to COVID-19.” (NNU, March 4, 2020)
 
Novoa M. (2020, June 24). “Direct OSHA to issue an emergency temporary standard to 
protect all workers from COVID-19 now!” (Novoa, June 24, 2020)
 
Occupational Safety and Health Administration (OSHA). Letter from Loren Sweatt to 
Congressman Robert C. “Bobby” Scott. (OSHA, March 18, 2020)
ORCHSE Strategies. (2020, October 9). “Petition to the U.S. Department of Labor – 
Occupational Safety and Health Administration (OSHA) for an Emergency Temporary 
Standard (ETS) for Infectious Disease.” (ORCHSE, October 9, 2020)
 
Owen M. (2020, March 19). “Grant OSHA emergency standard to protect frontline 
workers from COVID-19.” (Owen, March 19, 2020)

Pellerin C. (2020, March 19). “Grant OSHA emergency standard to protect frontline 
workers from COVID-19.” (Pellerin, March 19, 2020)
  
Price D, Pocan M, Schakowsky J, DeLauro RL. (2020, May 1). “COVID-19 ETS 
Petition.” (Price et al., May 1, 2020) 
Public Citizen. (2020, March 13). “Support for AFL-CIO’s Petition for an OSHA 
Emergency Temporary Standard for Infectious Disease to Address the Epidemic of Novel 
Coronavirus Disease.” (Public Citizen, March 13, 2020) 
Raskin J. (2020, April 29). “COVID-19 ETS Petition.” (Raskin, April 29, 2020) 
Scobie HM et al. (2021, September 17). Monitoring Incidence of COVID-19 Cases, 
Hospitalizations, and Deaths, by Vaccination Status – 13 U.S. Jurisdictions, April 4-July 
17, 2021. MMWR Morb Mortal Wkly Rep 2021; 70: early release. 
https://www.cdc.gov/mmwr/volumes/70/wr/mm7037e1.htm. (Scobie et al., September 17, 
2021)
Scott RC and Adams AS. (2020, January 30). “Prioritize OSHA's Work on Infectious 
Diseases Standard / Immediate Issue of Temporary Standard.” (Scott and Adams, January 
30, 2020) 
Slotnik D. (2021, October 18). Coronavirus cases rise in the northern U.S. amid lower 
temperatures. The New York Times. 
https://www.nytimes.com/live/2021/10/18/world/covid-delta-variant-vaccine#covid-
cases-us-winter. (Slotnik, October 18, 2021) 
International Association of Sheet Metal, Air, Rail and Transportation Workers 
(SMART). (2020, March 30). “Petition for Emergency Standards.” (SMART, March 30, 
2020) 
Solt BE. (2020, April 28). “COVID-19 ETS Petition” (Solt, April 28, 2020) 
Talbott R and Adely R. (2020, May 4). “Rulemaking Petition to the United States 
Department of Labor Occupational Safety and Health Administration.” (Talbott 
and Adely, May 4, 2020) 
Texas Executive Order GA-34. (2021, March 2). 
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response-to-COVID-disaster-IMAGE-03-02-2021.pdf. (Texas Executive Order GA-34, 
March 2, 2021)
Texas Executive Order GA-40. (2021, October 11). 
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40_prohibiting_vaccine_mandates_legislative_action_IMAGE_10-11-2021.pdf. (Texas 
Executive Order GA-40, October 11, 2021) 
United Food and Commercial Workers International Union (UFCW) and American 
Federation of Labor and Congress of Industrial Organizations (AFL-CIO). (2021, June 
24). “Petition for Review, filed with the D.C. Circuit on June 24, 2021.” (UFCW and 
AFL-CIO, June 24, 2021)
 

Wellington M. (2020, March 12). “Grant OSHA emergency standard for COVID-19 to 
protect front-line workers” (Wellington, March 12, 2020) 
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Yborra G. (2020, March 19). “Grant OSHA emergency standard to protect frontline 
workers from COVID-19.” (Yborra, March 19, 2020)  
II. This ETS Is Necessary To Protect Unvaccinated Employees From Grave Danger.
As explained at length in the preceding section (Grave Danger, Section III.A. of 
this preamble), OSHA has determined that most unvaccinated workers across the U.S. 
economy are facing a grave danger posed by the COVID-19 hazard.17  This new hazard 
has taken the lives of more than 725,000 people—many of them workers—in the United 
States since it was first detected in this country in early 2020.  As the federal agency 
tasked with protecting the safety and health of workers in the United States, OSHA is 
required to act when it finds that workers are exposed to a grave danger. 29 U.S.C. 
655(c)(1). OSHA now finds that this emergency temporary standard is necessary to 
protect employees who are unvaccinated. Asbestos Info. Ass’n, 727 F.2d at 423 (“failure 
to act does not conclusively establish that a situation is not an emergency . . . [when there 
is a grave danger to workers,] to hold that because OSHA did not act previously it cannot 
do so now only compounds the consequences of the Agency's failure to act.”). As 
explained in detail below, OSHA has determined that vaccination is the most effective 
control for abating the grave danger that unvaccinated employees face from the COVID-
17 As explained in the Grave Danger section, this ETS focuses on protecting unvaccinated workers from the 
grave danger that COVID-19 poses in the workplace.  OSHA did not include fully vaccinated workers in its 
finding of grave danger because such workers are generally much better protected from the effects of 
COVID-19, and, in particular, the most severe effects, than workers who are unvaccinated.  OSHA’s action 
in adopting this ETS for unvaccinated workers does not mean that vaccinated workers do not face a 
significant risk from COVID-19, or that the OSH Act's general duty clause poses no obligation on 
employers to protect their vaccinated workers from COVID-19.  Indeed, symptomatic infections can occur 
in fully vaccinated people, and COVID-19 therefore poses at least some risk to vaccinated workers.  OSHA 
has requested comment on the risks faced by vaccinated workers from COVID-19, and what additional 
measures, if any, should be taken to protect both vaccinated and unvaccinated workers (see Request for 
Comments, Section I.B. of this preamble).

19 hazard. And, for workers who are not vaccinated, the use of testing, face coverings, 
and removal from the workplace, while not as effective as vaccination, is still effective 
and necessary. 
OSHA has determined that the best method for addressing the grave danger that 
COVID-19 poses to unvaccinated workers is to strongly encourage the use of the single 
most effective and efficient protection available: vaccination.  OSHA has long recognized 
the importance of vaccinating workers against preventable illnesses to which they may be 
exposed on the job. See 56 FR 64004, 64152 (Dec. 6, 1991) (discussing requirement in 
Bloodborne Pathogens standard for employer to make hepatitis B vaccine available to 
any employees with occupational exposure to blood and other potentially infectious 
materials).  As explained in Grave Danger (Section III.A. of this preamble), COVID-19 
vaccines do not completely eliminate the potential for infection, but significantly reduce 
the likelihood of infection, and in turn, transmission of the virus to others.  Data from 
clinical trials for all three vaccines and observational studies for the two mRNA vaccines 
clearly establish that fully vaccinated persons have a greatly reduced risk of SARS-CoV-
2 infection compared to unvaccinated individuals (see FDA, December 11, 2020; FDA, 
December 18, 2020; FDA, February 26, 2021).
More importantly, vaccination is the single most effective method for protecting 
workers from the most serious consequences of a COVID-19 infection: hospitalization 
and death.  Although symptomatic infections can occur in fully vaccinated people, they 
are less likely to occur, and are far less likely to result in severe health outcomes or death.  
As discussed in Grave Danger (Section III.A. of this preamble), studies have established 
that the available COVID-19 vaccines are highly effective at preventing hospitalization, 
and even more effective at preventing death.  For example, one study found that 
unvaccinated adults age 18 to 49 were 15.2 times more likely to be hospitalized and 17.2 
times more likely to die of COVID-19 than fully vaccinated people in the same age 

range, and unvaccinated adults age 50 to 64 were 10.9 times more likely to be 
hospitalized and 17.9 times more likely to die than their fully vaccinated peers (Scobie et 
al., September 17, 2021).  The New York Times reported on October 1, 2021, that of the 
approximately 100,000 individuals who died of COVID-19 since mid-June 2021, less 
than 3% had been identified by the CDC as vaccinated individuals (Boseman and 
Leatherby, October 1, 2021).
Vaccines are also uniquely effective when compared to non-pharmaceutical 
methods for controlling exposure to COVID-19 at the workplace.  To be sure, non-
pharmaceutical controls play an important role in employers’ efforts to prevent exposure 
to the virus; as discussed in detail earlier, OSHA has, throughout the pandemic, advised 
employers to implement various administrative, engineering, and other controls to reduce 
workplace exposure to the virus.  And, for certain work settings in the healthcare industry 
where people with COVID-19 are reasonably expected to be present, OSHA both 
encouraged vaccination and mandated a suite of protections, many of which involve 
physical controls (see 29 CFR 1910.502).  Indeed, workers who work indoors and near 
others are best protected from COVID-19 when they are fully vaccinated and their 
exposure to COVID-19 is reduced (to the extent possible) by non-pharmaceutical 
controls. 
Non-pharmaceutical controls, however, focus on preventing employee exposure 
to the virus, and do not directly affect an employee’s immune response if exposure to the 
virus does occur.  Additionally, non-pharmaceutical controls often rely on the actions of 
individuals and/or the integrity of equipment to be effective; for example, to use PPE to 
control exposure, a worker must correctly don appropriate PPE each time there is 
potential exposure, must properly clean, store, and maintain the PPE between uses, and 
must replace the PPE when it is no longer effective (see, e.g., 29 CFR 1910.132 (general 
PPE requirements in general industry workplaces)). Accordingly, OSHA standards have 

always followed the principle of the hierarchy of controls, under which employers must 
control hazards by means other than PPE whenever feasible, and PPE is a supplementary 
control. See e.g. 29 CFR 1910.134(a); 29 CFR 1910.1030(d)(2).
Physical distancing requires workers to maintain constant awareness of their 
environment in order to avoid coming into close proximity with colleagues, customers, or 
other individuals, even though the realities of their jobs and/or the design of the 
workplace may be unaccommodating to that effort.  Requiring employees to examine 
themselves for signs and symptoms consistent with SARS-CoV-2 infection before 
reporting to work is prone to human error and entirely ineffective when the employee is 
infected but asymptomatic or pre-symptomatic.  
In contrast, a worker is considered fully vaccinated after completing primary 
vaccination with a COVID-19 vaccine, or the second dose of any combination of two 
doses of a COVID-19 vaccine that is approved, authorized, or listed as a two-dose 
primary vaccination by the FDA or WHO (see the Summary and Explanation for 
paragraph (c), Section VI.C. of this preamble).  Once fully vaccinated, a worker enjoys 
automatic and long-lasting benefits; namely, a drastic reduction in the risk of severe 
health effects or death.  The vaccine works by bolstering the worker’s immune system 
and does not depend on the worker’s acumen or actions to afford its protection.  
Moreover, where an employer implements one or more non-pharmaceutical controls at 
the workplace, vaccination provides workers with a backstop of protection that greatly 
reduces their risk of serious health effects if they are exposed to the virus despite the 
presence of other controls.  Vaccination thus ensures that workers need not rely on other 
factors, be it the workplace environment, the effectiveness of equipment, or the actions of 
other individuals, to be substantially protected from the worst potential outcomes of a 
COVID-19 infection.     

This ETS focuses on encouraging vaccination because it is the most efficient and 
effective method for addressing the grave danger.  Vaccination is patently appropriate 
and feasible for almost every worker in all industries, and will drastically reduce the risk 
that unvaccinated workers will suffer the serious health outcomes associated with SARS-
CoV-2 infection.   As described in Section III.A. of this preamble (Grave Danger), 
employees who are unvaccinated are in grave danger from the SARS-CoV-2 virus, but 
employees who are fully vaccinated are not.  Since it is the lack of vaccination that 
results in grave danger, vaccination will best allay the grave danger. This ETS, which is 
designed to strongly encourage vaccination, is thus “necessary to protect employees” 
from a grave danger. 29 U.S.C. 655(c).  
OSHA continues to encourage employers to implement additional controls that 
may be appropriate to eliminate exposure to the SARS-CoV-2 virus at their workplace, 
but, as discussed further below, OSHA has not required employers to implement a 
comprehensive and multilayered set of COVID-19 exposure controls in this ETS.  This 
decision reflects the extraordinary and exigent circumstances have required OSHA to 
immediately promulgate this emergency temporary standard.  Although OSHA was able 
to design a comprehensive infection prevention program for the specific healthcare 
settings to which the June 2021 Healthcare ETS applied, this rule encompasses all 
industries covered by the OSH Act, and targets unvaccinated workers in any indoor work 
setting not covered by the Healthcare ETS where more than one person is present.  
Crafting a multi-layered standard that is comprehensive and feasible for all covered work 
settings, including mixed settings of vaccinated and unvaccinated workers, is an 
extraordinarily challenging and complicated undertaking, yet the grave danger that 
COVID-19 poses to unvaccinated workers obliges the agency to act as quickly possible.  
As discussed above, OSHA has identified vaccination as the single most efficient and 
effective means for removing an unvaccinated worker from the grave danger.   

Given the urgency of the rulemaking, and the singular effectiveness of 
vaccination in removing unvaccinated workers from the grave danger, OSHA is 
promulgating this ETS to immediately address the grave danger that COVID-19 poses to 
unvaccinated workers by strongly encouraging vaccination.  As discussed in Pertinent 
Legal Authority (Section II. of this preamble), a “grave danger” represents a risk greater 
than the “significant risk” that OSHA must show in order to promulgate a permanent 
standard under section 6(b) of the OSH Act, 29 U.S.C. 655(b).  OSHA will consider 
whether it is necessary to require additional controls to avert a significant risk of harm in 
the rulemaking proceedings that follow this ETS.  OSHA directs employers to its 
website, www.osha.gov/coronavirus, and the CDC’s website, www.cdc.gov/coronavirus, 
for guidance on the engineering, administrative, and other exposure controls that may be 
effective and appropriate for their workplace.
OSHA expects that, by strongly encouraging vaccination, this ETS will have a 
positive impact on worker health.  As discussed above, millions of workers remain 
unvaccinated and are presently exposed to risks of hospitalization and death many times 
higher than their vaccinated coworkers.  Although predicting the health impact of this 
ETS is particularly challenging, given the ever-changing nature of the pandemic and the 
many factors that may motivate workers to become fully vaccinated, OSHA has 
attempted to quantify the potential number of hospitalizations and fatalities that this ETS 
could avert by increasing workforce vaccination rates (see OSHA, October 2021c).  
OSHA has estimated that, as a result of the ETS, over 6,500 fewer currently unvaccinated 
workers will die from COVID-19 over the next six months.  OSHA also estimates that 
this ETS will prevent over 250,000 currently unvaccinated workers from being 
hospitalized during that same time period.  Even if OSHA’s estimate does not prove to be 
precisely accurate, OSHA is confident that this ETS will save hundreds of lives and 
prevent thousands of workers from becoming severely ill.  

a. OSHA Finds It Necessary to Strongly Encourage Vaccination.
Despite the proven safety and efficacy of the available COVID-19 vaccines, many 
workers remain unvaccinated and are currently exposed to a grave danger.  As discussed 
in Grave Danger (Section III.A. of this preamble), countless COVID-19 outbreaks have 
occurred in myriad work settings where employees come into contact with others, and in 
recent weeks, the majority of states in the U.S. have experienced what CDC defines as 
high or substantial community transmission, indicating that there is a clear risk of the 
virus being introduced into and circulating in workplaces (CDC, October 18, 2021 – 
Community Transmission Rates).  As of October 18, 2021, more than 184 million people 
in the United States have been fully vaccinated, but only 68.5% of people ages 18 years 
or older are fully vaccinated (CDC, October 18, 2021 – Fully Vaccinated).  OSHA has 
estimated that approximately 62.4% percent of adults aged 18-74 within the scope of this 
ETS are either fully vaccinated or received their first vaccine dose during the previous 
two weeks, leaving approximately 31.7 million unvaccinated (i.e., not fully vaccinated 
and did not receive a first dose with in the past two weeks) (see Economic Analysis, 
Section IV.B. of this preamble, Table IV.B.7).  Meanwhile, the rate of new vaccinations 
has slowed considerably; on October 15, 2021, the 7-day moving average number of 
administered vaccine doses reported to the CDC per day was 841,731 doses, a steep 
reduction from the peak 3,448,156 dose average that the CDC reported on April 11, 2021 
(CDC, October 18, 2021 – Weekly Review).  
Given the pervasiveness of the virus in workplaces across the country and the 
unparalleled efficacy of vaccines at preventing serious health effects, OSHA finds it 
necessary to strongly encourage vaccination.  Encouraging vaccination is principally 
necessary to reduce the likelihood that workers who are infected by the SARS-CoV-2 
virus will suffer the worst outcomes of an infection (hospitalization and death).  Put 
simply, the single best method for protecting an unvaccinated worker from the serious 

health consequences of a COVID-19 infection is for that worker to become fully 
vaccinated.  
Additionally, encouraging vaccination is necessary to reduce the overall 
prevalence of the SARS-CoV-2 virus at workplaces.  Because vaccinated workers are 
less likely than unvaccinated workers to be infected by the virus, they are less likely to 
spread the virus to others at their workplace, including to unvaccinated coworkers.  
Increasing workforce vaccination rates will therefore reduce the risk that unvaccinated 
workers will be infected by a coworker.  
Evidence shows that mandating vaccination has proven to be an effective method 
for increasing vaccination rates, and that vaccination mandates have generally been more 
effective than merely encouraging vaccination.  Significant numbers of workers would 
get vaccinated if their employers required it, and many workers who were vaccinated 
over the last four months were motivated by their employer requiring vaccination.  The 
Kaiser Family Foundation (KFF) vaccine monitor, an ongoing research project tracking 
the public’s attitudes and experiences with COVID-19 vaccinations, conducted a survey 
from September 13 to September 22, 2021, among a nationally representative random 
digit dial telephone sample of 1,519 adults ages 18 and older, and found that those who 
received their first dose of a COVID-19 vaccine after June 1, 2021 were motivated by 
mandates of various sorts, including one in five (19%) who say a major reason was that 
their employer required it (KFF, September 2021). A survey conducted by Change 
Research from August 30 to September 2, 2021 regarding Americans’ views on COVID-
19 vaccines found that among the 1,775 respondents, “one of the things that was most 
likely to lead someone to get vaccinated was if their employer required it” (Towey, 
September 27, 2021).  
Vaccine mandates imposed by state governments and large employers have also 
demonstrated the effectiveness of mandates in increasing vaccination rates.  For example, 

when Tyson Foods announced its vaccination requirement in early August 2021, only 
45% of its workforce had received a vaccination dose, but as of September 30, 2021, the 
New York Times reported that has increased to 91% (White House, October 7, 2021; 
Hirsch, September 30, 2021). Similarly, United Airlines reported that 97% of its U.S.-
based employees were fully vaccinated against COVID-19 within a week of the 
deadline of the company’s vaccination mandate, and the 3% who were not fully 
vaccinated included several employees who sought a medical or religious exemption 
from vaccination (The Associated Press, September 22, 2021).  In Washington State, the 
weekly vaccination rate increased 34% after the Governor announced vaccine 
requirements for state workers (White House, October 7, 2021).  The success of these 
COVID-19 vaccination mandates comports with the National Safety Council’s recent 
finding that employers that instituted a COVID-19 vaccination mandate produced a 35% 
increase in employee vaccination (NSC, September 2021).  Similarly, the White House 
recently reported that its analysis of vaccination requirements imposed by healthcare 
systems, educational institutions, public-sector agencies, and private businesses 
demonstrated that such requirements increased their vaccination rates by more than 20 
percentage points and have routinely seen their share of fully vaccinated workers rise 
above 90 percent (White House, October 7, 2021).
Given the effectiveness of vaccination mandates in increasing vaccination rates, 
OSHA expects that, in most instances, an employer implementing a policy that requires 
all employees to be vaccinated will be the most effective approach for increasing the 
vaccination rate of its employees and ensuring that they have the best protection available 
against the worst consequences of a COVID-19 infection.  Although OSHA may well 
have the authority to impose a vaccination mandate, OSHA has decided against pursuing 
strict vaccination requirement and has instead crafted the ETS to strongly encourage 
vaccination. Employers are in the best position to understand their workforces and the 

approach that will work most effectively with them to secure employee cooperation and 
protection.  OSHA’s traditional practice when including medical procedures, such as 
medical surveillance testing and vaccinations, in its health standards has been to require 
the employer to make the medical procedure available to employees, and has viewed 
mandating those procedures as a measure to avoid if possible.  For example, when the 
agency promulgated its standard regulating occupational exposure to lead, OSHA 
considered mandating that employees participate in physical examinations and biological 
monitoring, but ultimately required employers to make them available to employees (see 
43 FR 54354, 54450 (Nov. 21, 1978)).  OSHA decided against mandating those 
procedures in part because it believed a voluntary approach would elicit more effective 
employee participation in the medical program and in part because of the agency’s 
concerns about the Government intruding into a private and sensitive area of workers’ 
lives (43 FR at 54450-51).  OSHA has followed that same approach of requiring 
employers to “provide” or “make available” medical procedures to employees in 
numerous subsequent standards, such as the standards for asbestos (29 CFR 1910.1001), 
benzene (1910.1028), cotton dust (1910.1043), and formaldehyde (1910.1048).  
OSHA adhered to this approach when it promulgated the Bloodborne Pathogens 
standard.  The agency considered mandating a Hepatitis B vaccination, but instead 
required employers to make the Hepatitis B vaccination available to employees.  56 FR 
64004, 64155 (Dec. 6, 1991); 29 CFR 1910.1030(f)(1)(i), (f)(2)(i).  OSHA explained that 
the agency may have the legal authority to mandate vaccination, but believed that, under 
the circumstances, a voluntary vaccination program would “foster greater employee 
cooperation and trust in the system” and “enhance[ ] compliance while respecting 
individuals’ beliefs and rights to privacy.”  56 FR at 64155.
In keeping with this traditional practice, the agency has stopped short of including 
a strict vaccination mandate with no alternative compliance option in this ETS. OSHA 

has never done so, and if it were to take that step, OSHA believes it more prudent to do 
so where the agency has ample time to fully assess the potential ramifications of 
imposing a vaccination mandate on covered employers and employees.  Here, exigent 
circumstances demand that OSHA take immediate action to protect workers from the 
grave danger posed by COVID-19, but OSHA has not had a full opportunity to study the 
potential spectrum of impacts on employers and employees, including the economic and 
health impacts, that would occur if OSHA imposed a strict vaccination mandate with no 
alternative compliance option.  Moreover, employers in their unique workplace settings 
may be best situated to understand their workforce and the strategies that will maximize 
worker protection while minimizing workplace disruptions.  These considerations 
persuade the agency that this ETS should afford employers some flexibility in the form of 
an alternative option to strictly mandating vaccination.  In light of the unique and grave 
danger posed by COVID-19, OSHA has requested comment on whether a strict 
vaccination mandate is warranted and the agency will consider all the information it 
receives as it determines how to proceed with this rulemaking (see Request for Comment, 
Section I.B. of this preamble).      
Although this ETS does not impose a strict vaccination mandate, OSHA has 
determined that, to adequately address the grave danger that COVID-19 poses to 
unvaccinated workers, a more proactive approach is necessary than simply requiring 
employers to make vaccination available to employees.  None of the standards that 
OSHA promulgated prior to this year concerned an infectious agent as readily 
transmissible as COVID-19.  Standards like the Lead standard do not concern infectious 
agents that can be transmitted between individuals at a workplace; accordingly, the 
medical procedures that employers are required to make available under those standards 
are solely aimed at protecting the health of the worker who is undergoing the procedure.  
The Bloodborne Pathogens standard concerned exposure to infectious biological agents 

(Hepatitis B and HIV) that can be transmitted between individuals, but the potential for 
those agents to be transmitted between workers is minimal in comparison to the SARS-
CoV-2 virus; Hepatitis B and HIV are transmitted through blood and certain body fluids, 
whereas the SARS-CoV-2 virus spreads through respiratory droplets that can travel 
through the air from worker-to-worker (see Grave Danger, Section III.A. of this 
preamble).  Vaccination against COVID-19 is thus particularly important in reducing the 
potential for workers to become infected and spread the virus to others at the workplace, 
in addition to protecting the worker from severe health outcomes if they are infected.  
Moreover, the ease with which the SARS-CoV-2 virus spreads between workers makes it 
more urgent for workers to be vaccinated, and this urgency contributes to the agency’s 
decision to strongly encourage vaccination. 
Accordingly, to further the goal of increasing workforce vaccination rates, this 
ETS  requires employers to implement a mandatory vaccination policy unless they adopt 
a policy in which employees may either be fully vaccinated or regularly tested for 
COVID-19 and wear a face covering in most situations when they work near other 
individuals.  Employers have the duty under the OSH Act to provide safe workplaces to 
their employees, including protecting employees from known hazards by complying with 
occupational safety and health standards (see 29 U.S.C. 654), and this ETS therefore 
provides employers with two compliance options for protecting unvaccinated workers 
from the grave danger posed by COVID-19.  But while this ETS offers employers a 
choice in how to comply, OSHA has presented implementation of a vaccination mandate 
as the preferred compliance option; as discussed above, vaccine mandates have proven to 
be effective in increasing vaccination rates, and OSHA expects that, in most instances, 
implementing a vaccination mandate will be the most effective method for increasing a 
workforce’s vaccination rate.  As discussed below, OSHA also recognizes that requiring 
that all employees be vaccinated provides more protection to vaccinated workers than 

regularly testing unvaccinated workers for COVID-19 and requiring them to wear face 
coverings when they work near others.  This ETS will preempt inconsistent state and 
local requirements, including requirements that ban or limit employers’ authority to 
require vaccination (see the Summary and Explanation for paragraph (a), Section VI.A. 
of this preamble), and will therefore provide the necessary legal authorization to covered 
employers to implement mandatory vaccination policies, if they choose to comply in this 
preferred manner.  
Although the ETS does not require all covered employers to implement a 
mandatory vaccination policy, OSHA expects that employers that choose that compliance 
option will enjoy advantages that employers that opt out of the vaccination mandate 
option will not.  Most obviously, employers with a mandatory vaccination policy will 
enjoy a dramatically reduced risk that their employees will become severely ill or die of a 
COVID-19 infection.  In addition, employers who implement a vaccination mandate will 
likely have fewer workers temporarily removed from the workplace due to a COVID-19 
positive test; this rule requires all covered employers to remove from the workplace any 
employee who tests positive for COVID-19 or receives a diagnosis of COVID-19 (see the 
Summary and Explanation for paragraph (h), Section VI.H. of this preamble), and 
because vaccinated workers are less likely than unvaccinated workers to be infected by 
the virus, OSHA expects employers with a mandatory vaccination policy will  be 
statistically less likely to be obliged to remove a COVID-positive employee from the 
workplace in accordance with paragraph (h)(2).  Additionally, only employers who 
decline to implement a mandatory vaccination program are required by the rule to assume 
the administrative burden necessary to ensure that unvaccinated workers are regularly 
tested for COVID-19 and wear face coverings when they work near others.  
Where employers opt out of implementing a mandatory vaccination program, the 
ETS encourages employees to elect to be fully vaccinated.  As discussed in the Summary 

and Explanation for paragraph (f) (Section VI.F. of this preamble), the ETS requires all 
covered employers to support vaccination by providing employees with reasonable time, 
including up to four hours of paid time, to receive each vaccination dose, and reasonable 
time and paid sick leave to recover from vaccination side effects.  Many workers have 
been deterred from receiving vaccination by fears of missing work and/or losing pay to 
obtain vaccination and/or recover from side effects (see Section VI.F. of this preamble; 
see, e.g., KFF, May 6, 2021; KFF, May 17, 2021), and OSHA finds that this employer 
support is necessary to ensure that employees can become fully vaccinated without 
concern that they will be sacrificing pay or their jobs to do so. 
All covered employers are required by the ETS to bear the cost of providing up to 
four hours of paid time and reasonable paid sick leave needed to support vaccination, but 
where an employee chooses to remain unvaccinated, the ETS does not require employers 
to pay for the costs associated with regular COVID-19 testing or the use of face 
coverings (see the Summary and Explanation for paragraphs (g) and (i), Sections VI.G. 
and VI.I. of this preamble).  In some cases, employers may be required to pay testing 
and/or face covering costs under other federal or state laws or collective bargaining 
obligations, and some may choose to do so even without such a mandate, but otherwise 
employees will be required to bear the costs if they choose to be regularly tested and wear 
a face covering in lieu of vaccination.  
This ETS more strongly encourages vaccination than the June 2021 Healthcare 
ETS.  OSHA designed the Healthcare ETS, which addresses the grave danger that 
COVID-19 poses workers in specific health care settings where COVID-19-positive 
individuals are reasonably likely to be present, to encourage vaccination (see 86 FR at 
32415, 32423, 32565, 32597).  Specifically, the Healthcare ETS encourages vaccination 
by requiring employers to provide employees reasonable and paid time to receive 
vaccination doses and recover from side effects (29 CFR 1910.502(m)), and by 

exempting from its scope “well-defined hospital ambulatory care settings where all 
employees are fully vaccinated” and all non-employees are screened and denied entry if 
they are suspected or confirmed to have COVID-19 (1910.502(a)(2)(iv)) and “home 
healthcare settings where all employees are fully vaccinated” and all nonemployees at 
that location are screened prior to employee entry so that people with suspected or 
confirmed COVID-19 are not present (1910.502 (a)(2)(v)).  
Similar to the Healthcare ETS, this ETS requires employers to support 
vaccination by providing employees with reasonable time, including up to four hours of 
paid time, to receive vaccination, and reasonable time and paid sick leave to recover from 
vaccination side effects (see discussion above and the Summary and Explanation for 
paragraph (f), Section VI.F. of this preamble).  However, as discussed above, this ETS 
goes further and expressly requires the implementation of a mandatory vaccination 
policy, unless the employer implements an alternative policy that requires unvaccinated 
workers to be regularly tested for COVID-19 and to wear face coverings in most 
situations when they work near others. While nothing in the Healthcare ETS prohibits 
covered employers from implementing a mandatory vaccination policy, this ETS presents 
the implementation of a mandatory vaccination policy as a preferred compliance option, 
and will preempt inconsistent state and local requirements that ban or limit employers’ 
authority to require vaccination.  Additionally, where the employer opts out of 
implementing a mandatory vaccination policy, and the employee opts out of vaccination, 
this ETS places no obligation on the employer to pay for costs associated with the regular 
testing of unvaccinated workers for COVID-19 or their use of face coverings, which will 
provide a financial incentive for some employees to be fully vaccinated.
OSHA finds it necessary to more strongly encourage vaccination in this ETS than 
in the Healthcare ETS in the manner described above.  The Healthcare ETS’s provisions 
that encouraged vaccination were packaged with a comprehensive infection prevention 

program that was tailored to the specific healthcare work settings to which the ETS 
applied, including a suite of layered and overlapping controls.  In contrast, OSHA is 
promulgating this ETS to address the grave danger that COVID-19 now poses to all 
unvaccinated workers who work indoors and in the presence of others.  As mentioned 
above, crafting a comprehensive and multi-layered standard that is comprehensive and 
feasible for the myriad work settings to which this ETS will apply, including workplaces 
as diverse as schools, restaurants, retail settings, offices, prisons, and factories, is an 
extraordinarily challenging and complicated undertaking.  
Exigent circumstances require OSHA to immediately promulgate this ETS to 
protect unvaccinated workers, and vaccination is the single most efficient and effective 
method for removing unvaccinated workers from the grave danger.  Given the urgency of 
the rulemaking and the singular efficacy of vaccination, OSHA has decided against 
including comprehensive and multilayered exposure controls in this ETS, and is instead 
focusing the ETS on strongly encouraging vaccination.  Strongly encouraging 
vaccination is thus critical to the effectiveness of this ETS at protecting unvaccinated 
workers from the grave danger.  In Request for Comment (Section I.B. of this preamble), 
OSHA seeks information on what additional measures, if any, should be required to 
protect employees against COVID-19.
Moreover, stronger encouragement of vaccination is needed in this ETS than in 
the Healthcare ETS because workers who are protected by the Healthcare ETS are more 
likely to be vaccinated and/or subject to a vaccination mandate.  The Healthcare ETS, 29 
CFR 1910.502, focused on healthcare work settings where COVID-19 is reasonably 
expected to be present, and, this ETS does not apply in settings where any employee 
provides healthcare services or healthcare support services while they are covered by the 
requirements of 29 CFR 1910.502 (see the Summary and Explanation for paragraph (b), 
Section VI.B. of this preamble).  Evidence shows that workers in settings covered by § 

1910.502 already have a high rate of vaccination.  As of July 2021, healthcare workers 
had a higher rate of vaccination than non-healthcare workers (Lazer et al., August, 2021), 
and many healthcare workers are currently subject to vaccination mandates.  Twenty-two 
states and the District of Columbia have instituted vaccination mandates that are 
applicable to healthcare workers (NASHP, October 1, 2021), and nearly 300 hospitals 
and broader health systems have implemented vaccine mandates for their employees 
(Renton et al., October 14, 2021).  The White House reported that almost 2,500 hospitals, 
40% of all U.S. hospitals, across all 50 states, the District of Columbia, and Puerto Rico, 
have announced vaccination requirements for their workforce, and noted numerous 
examples of highly successful mandates in those workplaces (White House, October 7, 
2021).  News reports attest that many of these vaccination mandates have had great 
success in increasing the vaccination rate of the targeted healthcare workers (Goldberg, 
July 9, 2021; Otterman and Goldstein, September 28, 2021; Hubler, September 30, 2021; 
Beer, October 4, 2021).  Even more healthcare workers covered by 29 CFR 1910.502 will 
be subject to a vaccination mandate under the Centers for Medicare & Medicaid Services 
(CMS) rule published elsewhere in this issue of the Federal Register that requires 
COVID-19 vaccinations for workers in most healthcare settings that receive Medicare or 
Medicaid reimbursement, including but not limited to hospitals, dialysis facilities, 
ambulatory surgical settings, and home health agencies.  This CMS rule applies to at least 
76,000 providers (i.e., employers) and covers a majority of healthcare workers across the 
country.  OSHA expects that the combination of incentives to vaccination in the 
Healthcare ETS and vaccination mandates applicable to healthcare workers will leave 
few healthcare workers within the scope of the Healthcare ETS unvaccinated.    
b. Unvaccinated Workers Must Be Regularly Tested for COVID-19 and Use Face 
Coverings.

As discussed above, this ETS presumptively requires employers to implement a 
mandatory vaccination policy, but permits employers to opt out of that requirement.  
Nonetheless, the grave danger that COVID-19 poses to unvaccinated workers demands 
that alternative protective measures be taken at workplaces where the employer does not 
implement a mandatory vaccination policy.  Given that the SARS-CoV-2 virus is highly 
contagious, transmitted easily through the air, and can lead to severe and/or fatal 
outcomes in unvaccinated workers, it is critical that employers who do not require their 
employees to be vaccinated implement controls to mitigate the potential for COVID-19 
outbreaks to occur.  As discussed above, and in Grave Danger (Section III.A. of this 
preamble), unvaccinated workers are more likely than vaccinated workers to be infected 
with COVID-19 and transmit the virus to others, and thus pose a heightened risk of 
spreading the virus at the workplace, including to other unvaccinated workers.  
To reduce the risk that unvaccinated workers will spread COVID-19 at the 
workplace, this rule requires employers that do not implement a mandatory vaccination 
policy to ensure that unvaccinated workers who report to a workplace where others are 
present are tested at least once a week for COVID-19.  As discussed in the Summary and 
Explanation for paragraph (g) (Section VI.G. of this preamble), it is well-established that, 
by identifying and isolating infected individuals, regularly testing individuals for 
COVID-19 infection can be an effective method for reducing virus transmission.  
Regularly testing unvaccinated workers is essential because SARS-CoV-2 infection is 
often attributable to asymptomatic or presymptomatic transmission (Bender et al., 
February 18, 2021; Byambasuren et al., December 11, 2020; Johansson et al., January 7, 
2021; Klompas et al., September 2021).  In accordance with the CDC’s 
recommendations, OSHA has set the minimum frequency of testing at 7 days because the 
agency expects that it will be effective in slowing the spread of COVID-19, while taking 
into account associated cost considerations (see the Summary and Explanation for 

paragraph (g), Section VI.G. of this preamble).  As noted in the Request for Comment 
(Section I.B. of this preamble), OSHA is gathering additional information about whether 
OSHA should require testing more often than on a weekly basis.
The requirement for unvaccinated workers to be regularly tested for COVID-19 
operates in tandem with paragraph (h)(2), which requires that all employers remove from 
the workplace any employee who receives a positive COVID-19 test, or a COVID-19 
diagnosis (see the Summary and Explanation for paragraph (h), Section VI.H. of this 
preamble).  Paragraph (h)(2) ensures that the COVID-19-positive employee will be 
isolated from the workplace until it is safe for the employee to return, and also allows the 
employee to seek medical care sooner and reduce the likelihood that they will suffer the 
most severe consequences of an infection (e.g., by seeking monoclonal antibody 
treatment).  The combination of the testing and medical removal provisions will reduce 
the likelihood that an unvaccinated worker who has been infected with COVID-19, 
including those who are not experiencing symptoms of infection, will be permitted to 
spread the virus to others at the workplace, including unvaccinated coworkers.   
Additionally, OSHA finds it necessary to require employers that do not 
implement a mandatory vaccination policy to ensure that unvaccinated workers wear face 
coverings in most situations when they are working near others.  This reflects OSHA’s 
recognition that regularly testing unvaccinated workers for COVID-19 will not be 100% 
effective in identifying infected workers before they enter the workplace.  Most 
obviously, testing employees once a week will not prevent an unvaccinated worker from 
exposing others at the workplace if the worker becomes infected and reports to the 
workplace in between their weekly tests.  And, even if the rule required unvaccinated 
workers to be tested more frequently than once a week, infected persons may still be 
missed, particularly in areas with high community spread (Chin et al., September 9, 
2020).  

Accordingly, requiring unvaccinated workers to wear face coverings in most 
situations when they are working near others will further mitigate the potential for 
unvaccinated workers to spread the virus at the workplace.  As discussed in the Summary 
and Explanation for paragraph (i) (Section VI.I. of this preamble), it is well-established 
that face coverings provide effective source control; that is, they largely prevent 
respiratory droplets emitted by the wearer of the face covering from spreading to others, 
and thus make it significantly less likely that the person wearing the mask will transmit 
the virus, if they are infected.  Face coverings are also believed to provide the wearer 
some limited protection from exposure to the respiratory droplets of co-workers and 
others (e.g., customers) (CDC, May 7, 2021), but the principal benefit of face coverings 
is to significantly reduce the wearer’s ability to spread the virus.  By requiring 
unvaccinated workers to wear face coverings, this rule significantly reduces the 
likelihood that an infected unvaccinated worker who enters the workplace despite the 
testing requirements will spread the virus to others, including unvaccinated coworkers.
OSHA acknowledges that regularly testing unvaccinated workers for COVID-19 
and requiring them to wear face coverings when they work near others is less protective 
of unvaccinated workers than simply requiring all workers to be vaccinated.  To be sure, 
OSHA strongly prefers that employers adopt a mandatory vaccination policy, as 
vaccination is singularly effective at protecting workers from the severe consequences 
that can result from a COVID-19 infection.  And, where employers do not adopt a 
mandatory vaccination policy, employers may also consider alternative feasible measures 
that would remove employees who remain unvaccinated from the scope of this ETS, such 
as increasing telework (see the Summary and Explanation for paragraph (b), Section 
VI.B. of this preamble).  Nonetheless, as discussed above, OSHA has not imposed a strict 
vaccination mandate on all covered employees who work in the presence of others and 
not exclusively outdoors, given that the agency has never previously used its authority to 

strictly mandate vaccination, and the exigent and extraordinary circumstances driving this 
emergency rulemaking have not afforded OSHA a full opportunity to assess the potential 
ramifications of including a strict vaccination mandate in this rule.  Given these 
circumstances, and employers’ unique understanding of the compliance approaches that 
will best increase vaccination rates among their workforce, OSHA has designed a rule 
that preserves a limited degree of employer flexibility, and strongly encourages, but does 
not strictly require, vaccination. OSHA has requested comment in this ETS on whether a 
strict vaccination mandate would be appropriate and the agency will consider those 
comments as it determines how to proceed with this rulemaking. 
References:
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Proof. Forbes. https://www.forbes.com/sites/tommybeer/2021/10/04/covid-19-vaccine-
mandates-are-working-heres-the-proof/?sh=1a08d2e72305. (Beer, October 4, 2021)
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Boseman J and Leatherby L. (2021, October 1). U.S. Coronavirus Death Toll Surpasses 
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09/early-mandates-boost-worker-vaccine-rates-prompt-few-to-quit. (Goldberg, July 9, 
2021)
Hirsch L. (2021, September 30). After Mandate, 91% of Tyson Workers Are Vaccinated. 
https://www.nytimes.com/2021/09/30/business/tyson-foods-vaccination-mandate-
rate.html. (Hirsch, September 30, 2021)
Hubler S. (2021, September 30). ‘Mandates Are Working’: Employer Ultimatums Life 
Vaccination Rates, So Far. The New York Times. 
https://www.nytimes.com/2021/09/30/us/california-vaccine-mandate-health-care.html. 
(Hubler, September 30, 2021)
Johansson MA et al., (2021, January 7). SARS-CoV-2 transmission from people without 
COVID-19 symptoms. JAMA Network Open. 4(1): e2035057. 
doi:10.1001/jamanetworkopen.2020.35057. (Johansson et al., January 7, 2021)
Kaiser Family Foundation (KFF). (2021, May 6). KFF COVID-19 Vaccine Monitor: 
April 2021. https://www.kff.org/coronavirus-covid-19/poll-finding/kff-covid-19-vaccine-
monitor-april-2021/. (KFF, May 6, 2021)
Kaiser Family Foundation (KFF). (2021, May 17). How employer actions could facilitate 
equity in COVID-19 vaccinations. https://www.kff.org/policy-watch/how-employer-
actions-could-facilitate-equity-in-covid-19-vaccinations/. (KFF, May 17, 2021)
Kaiser Family Foundation (KFF). (2021, September). Does The Public Want To Get A 
COVID-19 Vaccine? When? https://www.kff.org/coronavirus-covid-19/dashboard/kff-
covid-19-vaccine-monitor-
dashboard/?utm_source=web&utm_medium=trending&utm_campaign=COVID-19-
vaccine-monitor#messagesandinformation. (KFF, September 2021)

Klompas M et al. (2021, September). The case for mandating COVID-19 vaccines for 
health care workers. Annals of Internal Medicine. https://doi.org/10.7326/M21-2366. 
(Klompas et al., September 2021)
Lazer D et al. (2021, August). The COVID States Project: A 50-State COVID-19 Survey 
Report #62: COVID-19 Vaccine Attitudes Among Healthcare Workers. 
http://news.northeastern.edu/uploads/COVID19%20CONSORTIUM%20REPORT%2062
%20HCW%20August%202021.pdf. (Lazer et al., August, 2021)
National Academy for State Health Policy (NASHP). (2021, October 1). State Efforts to 
Ban or Enforce COVID-19 Vaccine Mandates and Passports. 
https://www.nashp.org/state-lawmakers-submit-bills-to-ban-employer-vaccine-
mandates/. (NASHP, October 1, 2021)
National Safety Council (NSC). (2021, September). A Year in Review, and What’s Next: 
COVID-19 Employer Approaches and Worker Experiences. 
https://www.nsc.org/faforms/safer-year-one-final-report. (NSC, September 2021)
Occupational Safety and Health Administration (OSHA). (2021c, October). Health 
Impacts of the COVID-19 Vaccination and Testing ETS. (OSHA, October 2021c)
Otterman S and Goldstein J. (2021, September 28). Thousands of N.Y. Health Care 
Workers Get Vaccinated Ahead of Deadline. The New York Times. 
https://www.nytimes.com/2021/09/28/nyregion/vaccine-health-care-workers-
mandate.html. (Otterman and Goldstein, September 28, 2021)
Renton B et al. (2021, October 14). New: Hospital Vaccine Mandate Tracker. Global 
Epidemics, Brown School of Public Health. https://globalepidemics.org/2021/07/24/new-
hospital-vaccine-mandate-tracker/. (Renton et al., October 14, 2021)
Scobie HM et al. (2021, September 17). Monitoring Incidence of COVID-19 Cases, 
Hospitalizations, and Deaths, by Vaccination Status – 13 U.S. Jurisdictions, April 4-July 
17, 2021. MMWR Morb Mortal Wkly Rep 2021; 70: early release. 
https://www.cdc.gov/mmwr/volumes/70/wr/mm7037e1.htm. (Scobie et al., September 17, 
2021)
The Associated Press. (2021, September 22). United Airlines says 97% of US employees 
have been vaccinated. https://www.wifr.com/2021/09/22/united-airlines-say-97-us-
employees-have-been-vaccinated/. (The Associated Press, September 22, 2021)
Towey R. (2021, September 27). CNBC poll shows very little will persuade unvaccinated 
Americans to get Covid shots. https://www.cnbc.com/2021/09/10/cnbc-poll-shows-very-
little-will-persuade-unvaccinated-americans-to-get-covid-shots.html. (Towey, September 
27, 2021)
White House. (2021, October 7). White House Report: Vaccination Requirements Are 
Helping Vaccinate More People, Protect Americans from COVID-19, and Strengthen the 
Economy. https://www.whitehouse.gov/wp-content/uploads/2021/10/Vaccination-
Requirements-Report.pdf. (White House, October 7, 2021)
III. No Other Agency Action Is Adequate To Protect Employees Against Grave Danger. 

OSHA’s experience to date shows that the agency’s existing tools are inadequate 
to meet the grave danger posed by COVID-19 to unvaccinated workers not covered by 
the Healthcare ETS.  OSHA has determined that its existing standards, regulations, the 
OSH Act’s General Duty Clause, and non-mandatory guidance will not adequately 
promote the most effective means to protect these workers: vaccination. The agency has 
determined that this ETS is necessary to address these inadequacies. Multiple 
developments support this change in approach.  First, large numbers of employees are 
continuing to contract COVID-19 and die. (See Grave Danger, Section III.A. of this 
preamble). Further, based on a thorough review of its existing approach to protecting 
employees from COVID-19 and the current state of the pandemic, OSHA finds that 
existing OSHA standards, regulations, the General Duty Clause, and non-mandatory 
guidance are not adequate to protect employees outside healthcare from COVID-19. The 
Preamble to the Healthcare ETS includes a detailed analysis demonstrating the 
inadequacy of existing tools in the healthcare industry. See 86 FR 32414-32423. In 
general, the same analysis applies here. The reasons existing tools were inadequate to 
protect healthcare workers apply in other industry sectors as well. The Healthcare ETS 
itself, while necessary to protect healthcare workers, of course applies only to that 
industry. Finally, the numerous guidance products published by other entities, such as 
CDC, are not adequate to protect employees because they are not enforceable; there is no 
penalty for noncompliance. 86 FR at 32415. Even as the CDC has increasingly 
recommended vaccination to protect from the dangers of transmission and severe illness 
related to the SARS-CoV-2 virus, vaccination rates remain uneven around the country. 
(CDC, September 9, 2021; Leonhardt, September 7, 2021; KFF, October 6, 2021; 
McPhillips and Cohen, May 19, 2021). 
The need for this ETS is also reflected in the number of states and localities that 
have issued their own mandatory standards in recognition that OSHA’s existing measures 

(including non-mandatory guidance, compliance assistance, and enforcement of existing 
standards) have failed to prevent the spread of the virus in workplaces. Additionally, as 
mentioned previously, other states have banned certain employers from implementing 
workplace vaccination mandates or from verifying an employee’s vaccination status or 
from requiring face coverings. A national standard is necessary to establish clear 
requirements regarding vaccination, testing and face coverings that will protect 
employees in all states and preempt state or local ordinances that prevent employers from 
implementing necessary protections.  
a. The Current Standards and Regulations Are Inadequate. 
In the Healthcare ETS, OSHA considered its enforcement efforts with regard to 
existing standards and regulations that OSHA had identified as potentially applicable to 
occupational exposure to SARS-CoV-2. OSHA’s analysis in Section IV of the Healthcare 
ETS, 86 FR 32376, 32416-17 and hereby included in the record of this ETS18, is 
applicable here in considering the need for this ETS, which covers a much broader set of 
employers in all industries. There OSHA found that none of the existing OSHA standards 
could sufficiently abate the hazard posed by COVID-19 in healthcare settings. Here again 
OSHA concludes that the potentially applicable existing standards are insufficient to 
address the grave danger faced by workers covered by this ETS. None of the current 
standards, even if more rigorously enforced, can sufficiently address this cross-industry 
hazard of national proportions to abate the grave danger posed by COVID-19 or lead to 
the same benefits that this ETS will achieve. See Asbestos Info. Ass’n/N. Am. v. 
Occupational Safety & Health Admin., 727 F.2d 415, 427 (5th Cir. 1984) (“[M]uch of the 
claimed benefit could be obtained simply by enforcing the current standard.”).  
18 This adoption includes the citations in the referenced section of the Healthcare ETS, which are also 
included in the docket for this ETS.

Through its enforcement guidance, OSHA identified a number of current 
standards and regulations that might apply when workers have occupational exposure to 
SARS-CoV-2, most of which are the same standards OSHA considered in the Healthcare 
ETS. (Updated Interim Enforcement Response Plan for Coronavirus Disease 2019 
(COVID-19)) (OSHA, July 7, 2021). OSHA has also cited the Hazard communication 
standard (29 CFR 1910.1200) during COVID-19 investigations. Accordingly, a list of 
potentially applicable standards and regulations follows:

29 CFR part 1904, Recording and Reporting Occupational Injuries and 
Illnesses. This regulation requires certain employers to keep records of work-
related fatalities, injuries, and illnesses and report them to the government in 
specific circumstances.

29 CFR 1910.132, General requirements — Personal Protective Equipment 
(PPE). This standard requires that appropriate PPE, including PPE for eyes, face, 
head, and extremities, protective clothing, respiratory devices, and protective 
shields and barriers, be provided, used, and maintained in a sanitary and reliable 
condition.

29 CFR 1910.134, Respiratory protection. This standard requires that employers 
provide, and ensure the use of, appropriate respiratory protection when necessary 
to protect employee health.

29 CFR 1910.141, Sanitation. This standard applies to permanent places of 
employment and contains, among other requirements, general housekeeping and 
waste disposal requirements.

29 CFR 1910.145, Specification for accident prevention signs and tags. This 
standard requires the use of biological hazard signs and tags, in addition to other 
types of accident prevention signs and tags.


29 CFR Subpart U – COVID-19 Emergency Temporary Standard. The Healthcare 
ETS, promulgated on June 21, 2021 includes various controls (patient screening 
and management, respirators and other PPE, limiting exposure to aerosol-
generating procedures, physical distancing, physical barriers, cleaning, 
disinfection, ventilation, health screening and medical management, access to 
vaccination, anti-retaliation provisions, and medical removal protection) to 
address the grave danger posed by COVID-19 to healthcare workers.  

29 CFR 1910.1020, Access to employee exposure and medical records. This 
standard requires that employers provide employees and their designated 
representatives access to relevant exposure and medical records.

29 CFR 1910.1200, Hazard communication. This standard requires employers to 
keep Safety Data Sheets (SDS) for chemical hazards, provide SDSs to employees 
and their representatives when requested, and train employees about those 
hazards. The standard does not apply to biological hazards, but hazard 
communication becomes an issue for the SARS-CoV-2 virus when chemicals are 
used to disinfect surfaces. 
OSHA again finds that none of these existing standards provide for the types of 
workplace controls that are necessary to combat the grave danger addressed by this ETS. 
First, none of the listed potentially applicable standards require vaccination against 
SARS-CoV-2, the most efficient and effective control to combat the grave danger posed 
by the virus. (The Bloodborne Pathogen Standard requires that the hepatitis B vaccine be 
made available to certain employees, but that is not that is not relevant here, since the 
hepatitis vaccine provides no protection against COVID-19). Nor are the additional safety 
measures included in this ETS—vaccination verification, screening testing, face 
coverings, and medical removal of COVID-19 positive workers— required by existing 

standards other than OSHA’s Healthcare ETS (covering employees exempted from this 
new ETS while the Healthcare ETS is in effect).  
Second, because existing standards do not contain provisions specifically targeted 
at the COVID-19 hazard, it may be difficult for employers and employees to determine 
what particular COVID-19 safety measures are required by existing standards, or how the 
separate standards are expected to work together as applied to COVID-19.  An ETS that 
contains provisions specifically addressing COVID-19 hazards in covered workplaces 
will provide clear instructions. More certainty will lead to more compliance, and more 
compliance will lead to improved protection of employees covered by this standard. 
Third, requirements in some standards may be appropriate for other situations but 
simply do not contemplate COVID-19 and fail to address important aspects of the hazard. 
For example, the general sanitation standard requires employers to provide warm water, 
soap, and towels that can be used in hand washing, but does not require disinfection or 
provision of hand sanitizer where handwashing facilities cannot be made readily 
available. See 86 FR 32417.  Although the sanitation standard might appear at first glance 
to be relevant here, it simply does not require the types of controls that would, even if 
more rigorously enforced, sufficiently reduce the threat of COVID-19 in the workplace. 
As such, OSHA affirms its previous determination that some of the above-listed 
standards—including the sanitation standard—are in practice too difficult to apply to the 
COVID-19 hazard and have never been cited in COVID enforcement. 86 FR 32416. 
Fourth, existing recordkeeping and reporting regulations do not adequately allow 
the employer or the agency to assess the full scope of COVID-19 workplace exposures 
and protection.  OSHA’s general recordkeeping regulations were not written with the 
nature of COVID-19 transmission or illness in mind.  In order to adequately understand 
and thereby control the spread of COVID-19 in the workforce, it is critical that the 
employer has records of employees’ vaccination status, and of the testing undergone by 

employees who do not receive vaccination, and that it knows of all cases of COVID-19 
occurring among employees. However, such information is outside of the scope of 
OSHA’s existing recordkeeping requirements, which are limited to injuries or illnesses 
that the employer knows to be work-related. 
Moreover, existing reporting regulations do not adequately ensure that OSHA has 
the full picture of the impact of COVID-19 because those regulations only require 
employers to report in-patient hospitalizations that occur within 24 hours of the work-
related incident and to report fatalities that occur within thirty days of the work-related 
incident. 86 FR at 32417. Many COVID-19 infections will not result in hospitalization or 
death until well after these limited reporting periods. Under existing regulations, such 
cases are not required to be reported to OSHA, which limits the agency’s ability to fully 
understand the impact of COVID-19 on the workforce. 86 FR 32417. This ETS includes 
a provision, paragraph (k), that removes the time limitation on reporting for COVID-19 
cases.
In conclusion, OSHA’s experience has demonstrated that existing standards and 
regulations are inadequate to address the current COVID-19 hazard. 
b. The General Duty Clause Is Inadequate to Meet the Current Crisis.
Section 5(a)(1) of the OSH Act, or the General Duty Clause, provides the general 
mandate that each employer “furnish to each of [its] employees employment and a place 
of employment which are free from recognized hazards that are causing or are likely to 
cause death or serious physical harm to [its] employees.”  29 U.S.C. 654(a)(1). For 
General Duty Clause citations to be upheld, OSHA must demonstrate elements of proof 
that are supplementary to, and can be more difficult to show than, the elements of proof 
required for violations of specific standards, where a hazard is presumed. Specifically, to 
prove a violation of the General Duty Clause, OSHA needs to establish – in each 
individual case – that: (1) an activity or condition in the employer’s workplace presented 

a hazard to an employee; (2) the hazard was recognized; (3) the hazard was causing or 
was likely to cause death or serious physical harm; and (4) feasible means to eliminate or 
materially reduce the hazard existed.  BHC Nw. Psychiatric Hosp., LLC v. Sec’y of 
Labor, 951 F.3d 558, 563 (D.C. Cir. 2020). OSHA often relies on the General Duty 
Clause to fill gaps where specific standards do not address a hazard and OSHA enforces 
it through case-by-case adjudicative proceedings. See United States v. Strum, 84 F.3d 1, 5 
(1st Cir. 1996).
OSHA has previously found the General Duty Clause to be inadequate to protect 
employees from dangers posed by infectious agents. In promulgating the bloodborne 
pathogens standard, OSHA explained that enforcement under the General Duty Clause 
was insufficient to protect employees from the serious hazards those pathogens present. 
56 FR 64007 (December 6, 1991). In the recently promulgated Healthcare ETS, OSHA 
found that the General Duty Clause was insufficient to protect healthcare workers from 
the grave danger they faced as well. 86 FR 32418. While OSHA initially attempted to use 
the General Duty Clause to protect employees across all industries from COVID-19-
related hazards, OSHA’s experience has demonstrated that the Clause is grossly 
inadequate to protect employees covered by this ETS from the grave danger posed by 
COVID-19 in the workplace. As explained more fully below, OSHA finds this ETS is 
necessary to protect employees from the hazards of COVID-19. 
As an initial matter, the General Duty Clause does not provide employers with 
specific requirements to follow or a roadmap for implementing appropriate abatement 
measures. The ETS, however, provides a clear statement of what OSHA expects 
employers to do to protect workers, thus facilitating better compliance.  The General 
Duty Clause is so named because it imposes a general duty to keep the workplace free of 
recognized serious hazards; the ETS, in contrast, lays out clear requirements for 
employers to implement vaccination policies including vaccination verification, support 

for employee vaccination, screening testing and face coverings for unvaccinated workers, 
and medical removal of COVID-19 positive employees. Conveying obligations as clearly 
and specifically as possible makes it much more likely that employers will comply with 
those obligations and thereby protect workers from COVID-19 hazards.  See, e.g., 
Integra Health Mgmt., Inc., 2019 WL 1142920, at *7 n.10 (No. 13-1124, 2019) (noting 
that standards “give clear notice of what is required of the regulated community”); 56 FR 
64007 (“because the standard is much more specific than the current requirements 
[general standards and the general duty clause], employers and employees are given more 
guidance in carrying out the goal of reducing the risks of occupational exposure to 
bloodborne pathogens”). 
Moreover, several characteristics of General Duty Clause enforcement actions 
make them an inadequate means to address hazards associated with COVID-19.  First, it 
would be virtually impossible for OSHA to require and enforce the most important 
worker-protective elements of the ETS (such as vaccination and testing) under the 
General Duty Clause. Second, OSHA’s burden of proof for establishing a General Duty 
Clause violation is heavier than for standards violations. Third, promulgating an ETS will 
enable OSHA to issue more meaningful penalties for willful and egregious violations, 
thus creating effective deterrence against employers who intentionally disregard their 
obligations under the Act or demonstrate plain indifference to employee safety. As 
discussed in more detail below, all of these considerations demonstrate OSHA’s need to 
promulgate this ETS in order to protect unvaccinated workers covered by this standard 
from hazards posed by COVID-19.  
The General Duty Clause is ill-suited to requiring employers to adopt vaccination and 
testing policies, like those required by the ETS
Because the General Duty Clause requires OSHA to establish the existence and 
feasibility of abatement measures that can materially reduce a hazard, it is difficult for 
OSHA to use the clause to require specific control measures where an employer is doing 

something, but not what the Secretary has determined is needed to fully address the 
serious hazard.  See, e.g., Waldon Health Care Center, 16 BNA OSHC 1052, 1993 WL 
119662 at * (No. 89-2804, 1993) (vacating OSHA citation requiring pre-exposure 
hepatitis B vaccination under General Duty Clause by finding that although vaccination 
would more fully reduce the hazard, the employer’s chosen means of abatement were 
sufficient); Brown & Root, Inc., Power Plant Div., 8 BNA OSHC 2140, 1980 WL 10668 
at *5 (No. 76-1296, 1980) (“[T]he employer may defend against a section 5(a)(1) citation 
by asserting that it was using a method of abatement other than the one suggested by the 
Secretary.”). 
Further, even where OSHA establishes a violation of the General Duty Clause, the 
employer is under no obligation to implement the feasible means of abatement proven by 
OSHA as part of its prima facie case. Cyrus Mines Corp., 11 OSH Cas. (BNA) 1063, 
1982 WL 22717, at *4 (No. 76-616, 1983) (“[The employer] is not required to adopt the 
abatement method suggested by the Secretary, even one found feasible by the 
Commission; it may satisfy its duty to comply with the standard by using any feasible 
method that is appropriate to abate the violation.”); Brown & Root, Inc., Power Plant 
Div., 1980 WL 10668 at *5.  Thus, even in cases where OSHA prevails, the employer 
need not necessarily implement the specific abatement measure(s) OSHA established 
would materially reduce the hazard. The employer could select alternative controls and 
then it would be up to OSHA, if it wished to cite the employer again, to establish that the 
recognized hazard continued to exist and that its preferred controls could materially 
reduce the hazard even further. 
Given the severity and pervasiveness of the COVID-19 hazard, OSHA has 
determined that the specific abatement measures provided in this ETS are necessary to 
protect workers from grave danger. Under the General Duty Clause alone, it would be 
nearly impossible to require employers to provide these specific measures, and even then, 

it could only be on a case-by-case enforcement basis. Considering the magnitude and 
ubiquity of the danger that SARS-CoV-2 poses to workers across the country, the case-
by-case adjudicatory regime set up through the General Duty Clause is simply not 
adequate to combat the risk of severe illness and death caused by the virus.
General Duty Clause Citations Impose a Heavy Litigation Burden on OSHA 
Under the General Duty Clause OSHA must prove that there is a recognized 
hazard, i.e., a workplace condition or practice to which employees are exposed, creating 
the potential for death or serious physical harm to employees.  See SeaWorld of Florida 
LLC v. Perez, 748 F.3d 1202, 1207 (D.C. Cir. 2014); Integra Health Management, 2019 
WL 1142920, at *5. Whether a particular workplace condition or practice is a 
“recognized hazard” under the General Duty Clause is a question of fact that must be 
decided in each individual case. See SeaWorld of Florida LLC, 748 F.3d at 1208. In the 
case of a COVID-19-related citation, this means showing not just that the virus is a 
hazard as a general matter – a fairly indisputable point – but also that the specific 
conditions in the cited workplace, such as unvaccinated, unmasked employees working in 
close proximity to other employees for extended periods, create a COVID-19-related 
hazard. 
In contrast, an OSHA standard that requires or prohibits specific conditions or 
practices establishes the existence of a hazard.  See Harry C. Crooker & Sons, Inc. v. 
Occupational Safety & Health Rev. Comm’n, 537 F.3d 79, 85 (1st Cir. 2008); Bunge 
Corp. v. Sec’y of Labor, 638 F.2d 831, 834 (5th Cir. 1981).  Thus, in enforcement 
proceedings under OSHA standards, as opposed to the General Duty Clause, “the 
Secretary need not prove that the violative conditions are actually hazardous.”  Modern 
Drop Forge Co. v. Sec’y of Labor, 683 F.2d 1105, 1114 (7th Cir. 1982). With OSHA’s 
finding that the hazard of exposure to COVID-19 can exist for unvaccinated workers in 
all covered workplaces (see Grave Danger, Section III.A. of this preamble), the ETS will 

eliminate the burden to repeatedly prove, workplace by workplace, the existence of a 
COVID-19 hazard under the General Duty Clause.
One of the most significant advantages to standards like the ETS that establish the 
existence of the hazard at the rulemaking stage is that the Secretary can require specific 
abatement measures without having to prove that a specific cited workplace is already 
hazardous.19  In contrast, as discussed above, under the General Duty Clause the 
Secretary cannot require abatement before proving in the enforcement proceeding that an 
existing condition at the workplace is hazardous. For example, in a challenge to OSHA’s 
Grain Handling Standard, which was promulgated in part to protect employees from the 
risk of fire and explosion from accumulations of grain dust, the Fifth Circuit 
acknowledged OSHA’s inability to effectively protect employees from these hazards 
under the General Duty Clause in upholding, in large part, the standard.  See Nat’l Grain 
& Feed Ass’n v. Occupational Safety & Health Admin., 866 F.2d 717, 721 (5th Cir. 1988) 
(noting Secretary’s difficulty in proving explosion hazards of grain handling under 
General Duty Clause).  Although OSHA had attempted to address fire and explosion 
hazards in the grain handling industry under the General Duty Clause, “employers 
generally were successful in arguing that OSHA had not proved that the specific 
condition cited could cause a fire or explosion.”  Id. at 721 & n.6 (citing cases holding 
that OSHA failed to establish a fire or explosion hazard under the General Duty Clause).  
The Grain Handling Standard, in contrast, established specific limits on accumulations of 
grain dust based on its combustible and explosive nature, and the standard allowed 
OSHA to cite employers for exceeding those limits without the need to prove at the 
19 “The Act does not wait for an employee to die or become injured. It authorizes the promulgation of 
health and safety standards and the issuance of citations in the hope that these will act to prevent deaths and 
injuries from ever occurring.”  Whirlpool Corp, v. Marshall, 445 U.S. 1, 12 (1980); see also Arkansas-Best 
Freight Sys., Inc. v. Occupational Safety & Health Rev. Comm’n, 529 F.2d 649, 653 (8th Cir. 1976) (noting 
that the “[OSH] Act is intended to prevent the first injury”).  

enforcement stage that each cited accumulation was likely to cause a fire or explosion.  
See id. at 725-26. 
The same logic applies to COVID-19 hazards.  Given OSHA’s burden under the 
General Duty Clause to prove that conditions at the cited workplace are hazardous, it is 
difficult for OSHA to ensure necessary abatement before individual employee lives and 
health are unnecessarily endangered by exposure to COVID-19, despite widespread 
evidence of the grave danger posed by worker exposure to COVID-19. Indeed, despite 
publishing a voluminous collection of COVID-19 guidance online and receiving and 
investigating thousands of complaints, OSHA did not believe it could justify the issuance 
of more than 20 COVID-19 related General Duty Clause citations over the entire span of 
the pandemic so far, because of the quantum of proof the Secretary must amass under the 
General Duty Clause. Unlike enforcement under the General Duty Clause, this ETS 
allows OSHA to cite employers for each protective requirement they fail to implement 
without the need to wait for employee infection or death to prove in an enforcement 
proceeding that the particular cited workplace was hazardous without that particular 
measure in place. Thus, this ETS, which covers millions of workers nation-wide, is 
significantly preferable to the General Duty Clause with respect to such a highly 
transmissible virus because the inability to prevent a single exposure can quickly result in 
an exponential increase in exposures and illnesses or fatalities even at a single worksite.   
An additional limitation of the General Duty Clause is that proving that there are 
feasible means to materially reduce a recognized hazard  typically requires testimony 
from an expert witness in each separate case, which limits OSHA’s ability to prosecute 
these cases as broadly as needed to protect workers, in light of the expense involved. See, 
e.g., Integra Health Management, 2019 WL 1142920, at *13 (requiring expert witness to 
prove proposed abatement measures would materially reduce hazard).  In contrast, where 
an OSHA standard specifies the means of compliance, the agency has already made the 

necessary technical determinations in the rulemaking and therefore does not need to 
establish feasibility of compliance as part of its prima facie case in an enforcement 
proceeding.  See, e.g., A.J. McNulty & Co. v. Sec’y of Labor, 283 F.3d 328, 334 (D.C. 
Cir. 2002); S. Colorado Prestress Co. v. Occupational Safety & Health Rev. Comm’n, 
586 F.2d 1342, 1351 (10th Cir. 1978).  Preventing the initial exposure and protecting as 
many workers as quickly as possible is especially critical in the context of COVID-19 
because, as explained in Grave Danger, Section III.A. of this preamble, it can spread so 
easily in workplaces.  
The ETS will also permit OSHA to achieve meaningful deterrence when necessary to 
address willful or egregious failures to protect employees against the COVID-19 hazard  
As described above, in contrast to the broad language of the General Duty Clause, 
this ETS will prescribe specific measures employers covered by this standard must 
implement. This specificity will make it easier for OSHA to determine whether an 
employer has intentionally disregarded its obligations or exhibited a plain indifference to 
employee safety or health. In such instances, OSHA can classify the citations as 
“willful,” allowing it to propose higher penalties, with increased deterrent effects. In 
promulgating the Healthcare ETS, OSHA noted that early in the pandemic, shifting 
guidance on the safety measures employers should take to protect their employees from 
COVID-19 created ambiguity regarding employers’ specific obligations. Thus, OSHA 
could not readily determine whether a particular employer had “intentionally” 
disregarded obligations that were not yet clear. And, even as the guidance began to 
stabilize, OSHA’s ability to determine “intentional disregard” or “plain indifference” was 
difficult, for example, when an employer took some steps address the COVID-19 hazard. 
86 FR 32420. The Healthcare ETS largely resolved this issue for employers covered by 
that standard, by laying out clearly what parameters to put in place to protect healthcare 
workers. However, this general challenge persists in OSHA’s attempts at enforcement in 
other industries. 

Further, OSHA has adopted its “egregious violation” policy to impose sufficiently 
large penalties that achieve appropriate deterrence against bad actor employers who 
willfully disregard their obligation to protect their employees when certain aggravating 
circumstances are present, such as a large number of injuries or illnesses, bad faith, or an 
extensive history of noncompliance (OSHA Directive CPL 02-00-080 (October 21, 
1990)).  Its purpose is to increase the deterrent impact of OSHA’s enforcement activity.  
This policy utilizes OSHA’s authority to issue a separate penalty for each instance of 
noncompliance with an OSHA standard, such as each employee lacking the same 
required protections, or each workstation lacking the same required controls. It can be 
more difficult to use this policy under the General Duty Clause because the Fifth Circuit 
and the Occupational Safety and Health Review Commission have held that, under the 
General Duty Clause, OSHA may only cite a hazardous condition once, regardless of its 
scope or the number of workers affected. Reich v. Arcadian Corp., 110 F.3d 1192, 1199 
(5th Cir. 1997). Thus, even where OSHA finds that an employer willfully failed to 
protect a large number of employees from a COVID-19 hazard, OSHA might not be able 
to cite the employer on a per-instance basis for failing to protect each of its employees.  
The provisions of this ETS have been intentionally drafted to make clear OSHA’s 
authority to separately cite employers for each instance of the employer’s failure to 
protect employees and for each affected employee, where appropriate.
By providing needed clarity, the ETS will facilitate “willful” and “egregious” 
determinations that are critical enforcement tools OSHA can use to adequately address 
violations by employers who have shown a conscious disregard for the health and safety 
of their workers in response to the pandemic.  Without the necessary clarity, OSHA has 
been limited in its ability to impose penalties high enough to motivate the very large 
employers who are unlikely to be deterred by penalty assessments of tens of thousands of 
dollars, but whose noncompliance can endanger thousands of workers. Indeed, OSHA 

has only been able to issue two COVID-19-related “willful” citations and no “egregious” 
citations since the start of the pandemic because of the challenges described above.  
For all of the reasons described above, and after over a year of attempting to use 
the General Duty Clause to address this widespread hazard, OSHA finds that the General 
Duty Clause is not an adequate enforcement tool to protect employees covered by this 
standard from the grave danger posed by COVID-19. 
c. OSHA and Other Entity Guidance Is Insufficient.
OSHA has issued numerous non-mandatory guidance products to advise 
employers on how to protect workers from SARS-CoV-2 infection (see 
https://www.osha.gov/coronavirus). Even the most comprehensive guidance makes clear, 
as it must, that the guidance itself imposes no new legal obligations, and that its 
recommendations are “advisory in nature.” (See OSHA’s online guidance, Protecting 
Workers: Guidance on Mitigating and Preventing the Spread of COVID-19 in the 
Workplace (OSHA, Updated August 13, 2021); and OSHA’s earlier 35-page booklet, 
Guidance on Preparing Workplaces for Covid-19, (OSHA, March 9, 2020)).  This 
guidance, as well as guidance products issued by other government agencies and 
organizations, including the CDC, the Centers for Medicare & Medicaid Services (CMS), 
the Institute of Medicine (IOM), and the World Health Organization (WHO), help protect 
employees to the extent that employers voluntarily choose to implement the practices 
they recommend.  Unfortunately, OSHA’s experience and the continued spread of 
COVID-19 throughout the country shows that does not happen consistently or rigorously 
enough, resulting in inadequate protection for employees. For example, the CDC has 
strongly recommended vaccination since vaccines became widely available earlier in the 
year, but many employees have yet to take this simples step, which would protect 
themselves and their co-workers from the danger of COVID-19. 

As documented in numerous peer-reviewed scientific publications, CDC, IOM, 
and WHO have recognized a lack of compliance with non-mandatory recommended 
infection-control practices (Siegel et al., 2007; IOM, 2009; WHO, 2009).  As noted in the 
preamble to the Healthcare ETS, OSHA was aware of these findings when it previously 
concluded that an ETS was not necessary, but at the time of that conclusion, the agency 
erroneously believed that it would be able to effectively use the non-mandatory guidance 
as a basis for establishing the mandatory requirements of the General Duty Clause, and 
informing employers of their compliance obligations under existing standards. 86 FR 
32421. As explained above, that has not proven to be an effective strategy.  Moreover, 
when OSHA made its initial necessity determination at the beginning of the pandemic, it 
made an assumption that given the unprecedented nature of the COVID-19 pandemic, 
there would be an unusual level of widespread voluntary compliance by the regulated 
community with COVID-19-related safety guidelines. (See, e.g., DOL, May 29, 2020 at 
20 (observing that “[n]ever in the last century have the American people been as mindful, 
wary, and cautious about a health risk as they are now with respect to COVID-19,” and 
that many “protective measures are being implemented voluntarily, as reflected in a 
plethora of industry guidelines, company-specific plans, and other sources”)). 
Since that time, however, developments have led OSHA to conclude that the same 
uneven compliance documented by CDC, IOM, and WHO is also occurring for the 
COVID-19 guidance issued by OSHA and other agencies. For example, rising “COVID 
fatigue” or “pandemic fatigue” has been reported for nearly a year already—i.e., a 
decrease in voluntary use of COVID-19 mitigation measures over time (Meichtry et al., 
October 26, 2020; Silva and Martin, November 14, 2020; Belanger and Leander, 
December 9, 2020; Millard, February 18, 2021). Other reasons that people have not 
followed COVID-19 guidance include fear of financial loss; skepticism about the danger 
posed by COVID-19; and even a simple human tendency, called “psychological 

reactance,” to resist curbs on personal freedoms, i.e., an urge to do the opposite of what 
somebody tells you to do (Belanger and Leander, December 9, 2020; Markman, April 20, 
2020).  OSHA is seeing evidence of these trends in its COVID-19 enforcement.  For 
example, although OSHA has issued guidance since the spring of 2020 encouraging the 
use of physical distancing and barriers as a means of protecting employees at fixed work 
locations, there have been a number of news reports indicating that employers ignore that 
guidance (Romo, November 19, 2020; Richards, May 5, 2020; Lynch, July 9, 2020).  
This was evidenced by a cross-sectional study performed from late summer to early fall 
of 2020 in New York and New Jersey that found non-compliance and widespread 
inconsistencies in COVID-19 response programs (Koshy et al., February 4, 2021). 
Indeed, OSHA continues to receive complaints and referrals attesting to such workplace 
practices. (OSHA, October 17, 2021). Worse, some employers must now deal with 
employees who not only have yet to be vaccinated but compound the danger by hiding 
their unvaccinated status and declining to wear source protection that would identify 
them as unvaccinated, even though it could provide some protection to their coworkers, 
in workplaces where there is a stigma attached to being unvaccinated. (Ember and 
Murphy Marcos, August 7, 2021). This ETS contains notification and vaccine 
verification requirements that address these avoidant behaviors and mitigate the hazard of 
undisclosed exposure and transmission (see the Summary and Explanation for paragraphs 
(e), (g), and (h), Sections VI.E., VI.G., and VI.H. of this preamble). 
OSHA’s more recent guidance update encourages employers to facilitate 
employee vaccination by providing paid time off and encourages testing and masks for 
unvaccinated workers. However, as discussed previously, vaccination rates remain 
inconsistent across the country and have slowed significantly since the spring of 2021. 
And infection rates remain high, especially among the unvaccinated. It is clear, as 
discussed previously, that voluntary self-regulation by employers will not sufficiently 

reduce the danger that COVID-19 poses in workplaces covered by this standard. As noted 
in the White House Report on vaccination requirements released on October 7, at this 
time only 25% of businesses have vaccine mandates in place (White House, October 7, 
2021). Since this ETS and other federal efforts to require vaccination were announced 
more private and public sector institutions have begun to prepare to implement 
vaccination requirements, further demonstrating the need for this rule as an impetus for 
employer action (White House, October 7, 2021). 
The high number of COVID-19-related complaints and reports that OSHA 
continues to receive on a regular basis suggests a lack of widespread compliance with 
existing voluntary guidance: from March 2020 to October 2021, OSHA has continued to 
receive hundreds of COVID-19-related complaints every month, including over 400 
complaints during the month of August 2021, and over 450 complaints to date in the 
month of September (OSHA, October 11, 2021).  And, as of October 17, OSHA has 
received 223 additional COVID-19-related complaints. (OSHA, October 17, 2021). If 
guidance were followed more strictly, or if there were enough voluntary compliance with 
steps to prevent illness, OSHA would expect to see a significant reduction in COVID-19-
related complaints from employees.  
The dramatic increases in the percentage of the population that contracted the 
virus during the summer of 2021 indicates a continued risk of COVID-19 transmission in 
workplace settings (for more information on the prevalence of COVID-19 see Grave 
Danger, Section III.A. of this preamble) despite OSHA’s publication of numerous 
specific and comprehensive guidance documents.  OSHA has found that neither reliance 
on voluntary action by employers nor OSHA non-mandatory guidance is an adequate 
substitute for specific, mandatory workplace standards at the federal level.  Public Citizen 
v. Auchter, 702 F.2d 1150 at 1153 (voluntary action by employers “alerted and 
responsive” to new health data is not an adequate substitute for government action).

d. A Uniform Nationwide Response to the Pandemic is Necessary to Protect Workers.
As the pandemic has continued in the United States, there has been increasing 
recognition of the need for a more consistent national approach (GAO, September, 2020; 
Budryk, November 17, 2020; Horsley, May 1, 2020; DOL OIG, February 25, 2021). 
Many employers have advised OSHA that they would welcome a nationwide ETS.  For 
example, in its October 9, 2020 petition for a COVID-19 ETS, ORCHSE Strategies, LLC 
explained that it is “imperative” that OSHA issue an ETS to provide employers one 
standardized set of requirements to address safety and health for their workers 
(ORCHSE, October 9, 2020).  This group of prominent business representatives 
explained that an ETS would eliminate confusion and unnecessary burden on workplaces 
that are struggling to understand how best to protect their employees in the face of 
confusing and differing requirements across states and localities. 
The lack of a national standard on this hazard has led to increasing imbalance in 
state and local regulation, a problem that OSHA already identified as concerning in its 
Healthcare ETS. See 86 FR 32413 (“The resulting patchwork of state and local 
regulations led to inadequate and varying levels of protection for workers across the 
country, and has caused problems for many employees and businesses.”) Since the 
Healthcare ETS was published, states and localities have taken increasingly more 
divergent approaches to COVID-19 vaccination, vaccination verification, screening 
testing, and the use of face coverings in the workplace. Currently, the spectrum ranges 
from states and localities requiring vaccine mandates and face coverings to states 
prohibiting or restricting them, with many states falling somewhere in between. Due to 
uneven approaches to vaccination across the country, states with the lowest rates of 
vaccination have COVID-19 infection rates four times as high as in states with the 
highest vaccine rates. (Leonhardt, September 7, 2021). Given that thousands of working 
age people continue to be infected with COVID-19 each week, many of whom will 

become hospitalized or die, OSHA recognizes that a patchwork approach to worker 
safety has not been successful in mitigating this infectious disease outbreak (CDC, 
October 18, 2021 – Cases, By Age). It has become clear that a Federal standard, by way 
of this ETS, is necessary to provide clear and consistent protection to employees across 
the country. As explained in Pertinent Legal Authority (Section II. of this preamble) and 
the Summary and Explanation for paragraph (a) (Section VI.A. of this preamble), OSHA 
has the authority to comprehensively address the issue(s) described in this ETS, and the 
standard is intended to preempt conflicting state and local laws.
In sum, based on its enforcement experience during the pandemic to date, OSHA 
concludes that continued reliance on existing standards and regulations, the General Duty 
Clause, and guidance, in lieu of an ETS, is not adequate to protect unvaccinated 
employees from the grave danger of being infected by, and suffering death or serious 
health consequences from, COVID-19.
References:
 
Belanger J and Leander P. (2020, December 9). What Motivates COVID Rule Breakers? 
Scientific American. https://www.scientificamerican.com/article/what-motivates-covid-
rule-breakers/. (Belanger and Leander, December 9, 2020)
Budryk Z. (2020, November 17). Fauci calls for ‘a uniform approach’ to coronavirus 
pandemic. The Hill. https://thehill.com/policy/healthcare/526378-fauci-calls-for-a-
uniform-approach-to-the-coronavirus-pandemic?rl=1. (Budryk, November 17, 2020)
Centers for Disease Control and Prevention (CDC). (2021, September 9). Your COVID-
19 Vaccination. https://www.cdc.gov/coronavirus/2019-ncov/vaccines/your-
vaccination.html. (CDC, September 9, 2021)
Centers for Disease Control and Prevention (CDC). (2021, October 18). COVID Data 
Tracker. https://covid.cdc.gov/covid-data-tracker/. (CDC, October 18, 2021)
Ember S and Murphy Marcos C. (2021, August 7). They Don’t Want the Shot. They 
Don’t Want Colleagues to Know. The New York Times. 
https://www.nytimes.com/2021/08/07/business/workplace-vaccinations-coronavirus-
reopenings.html. (Ember and Murphy Marcos, August 7, 2021)
Government Accountability Office (GAO). (2020, September). COVID-19: Federal 
Efforts Could Be Strengthened by Timely and Concerted Actions. 
https://www.gao.gov/assets/710/709934.pdf. (GAO, September 2020)

Horsley S. (2020, May 1). U.S. Workplace Safety Rules Missing in the Pandemic. 
National Public Radio. https://www.npr.org/2020/05/01/849212026/it-s-the-wild-west-u-
s-workplace-safety-rules-missing-in-the-pandemic. (Horsley, May 1, 2020)
Institute of Medicine (IOM). (2009). Respiratory Protection for Healthcare Workers in a 
Workplace Against Novel H1N1 Influenza A: A letter report. The National Academies 
Press. http://www.nap.edu/catalog/12748.html. (IOM, 2009)
Kaiser Family Foundation (KFF). (2021, October 6). Latest Data on COVID-19 
Vaccinations by Race/Ethnicity. https://www.kff.org/coronavirus-covid-19/issue-
brief/latest-data-on-covid-19-vaccinations-by-race-ethnicity/. (KFF, October 6, 2021)
Koshy K et al., (February 4, 2021). Perspectives of region II OSHA authorized safety and 
health trainers about initial COVID-19 response programs. Safety Science 138. 
https://doi.org/10.1016/j.ssci.2021.105193. (Koshy et al., February 4, 2021)
Leonhardt D. (2021, September 7). One in 5,000. The New York Times. 
https://www.nytimes.com/2021/09/07/briefing/risk-breakthrough-infections-delta.html. 
(Leonhardt, September 7, 2021)
Lynch R. (2020, July 9). Orange County to crack down on gyms that ignore Covid-19 
safety guidelines. Orlando Business Journal. 
https://www.bizjournals.com/orlando/news/2020/07/09/orange-county-gyms-could-face-
scrutiny-for-not.html. (Lynch, July 9, 2020)
Markman A. (2020, April 20). Why are there still so many coronavirus skeptics? Fast 
Company. https://www.fastcompany.com/90492518/why-are-there-still-so-many-
coronavirus-skeptics. (Markman, April 20, 2020) 
McPhillips D and Cohen E. (2021, May 19). Uneven vaccination rates across the US 
linked to COVID-19 case trends, worry experts. CNN Health. 
https://www.cnn.com/2021/05/19/health/uneven-vaccination-rates-covid-19-
trends/index.html. (McPhillips and Cohen, May 19, 2021)
Meichtry S et al. (2020, October 26). Pandemic Fatigue is Real – And It’s Spreading; 
Collective exhaustion with coronavirus restrictions has emerged as a formidable 
adversary for governments. The Wall Street Journal. 
https://www.wsj.com/articles/pandemic-fatigue-is-realand-its-spreading-11603704601. 
(Meichtry et al., October 26, 2020)
Millard E. (2021, February 18). How to not let pandemic fatigue turn into pandemic 
burnout. Everyday Health. https://www.everydayhealth.com/coronavirus/how-to-not-let-
pandemic-fatigue-turn-into-pandemic-burnout/. (Millard, February 18, 2021)
Occupational Safety and Health Administration (OSHA). (2020, March 9). Guidance on 
Preparing Workplaces for Covid-19. 
https://www.osha.gov/sites/default/files/publications/OSHA3990.pdf. (OSHA, March 9, 
2020
Occupational Safety and Health Administration (OSHA). (2021, July 7). Updated Interim 
Enforcement Response Plan for Coronavirus Disease 2019 (COVID-19). 
https://www.osha.gov/laws-regs/standardinterpretations/2021-07-07. (OSHA, July 7, 
2021)

Occupational Safety and Health Administration (OSHA). (2021, August 13). Guidance 
on Preparing Workplaces for Covid-19. 
https://www.osha.gov/sites/default/files/publications/OSHA3990.pdf. (OSHA, August 13, 
2021) 
Occupational Safety and Health Administration (OSHA). (2021, August 13). Protecting 
Workers: Guidance on Mitigating and Preventing the Spread of COVID-19 in the 
Workplace. https://www.osha.gov/coronavirus/safework. (OSHA, Updated August 13, 
2021)
Occupational Safety and Health Administration (OSHA). (2021, October 17). Summary 
Data for Federal and State Programs – Enforcement. 
https://www.osha.gov/enforcement/covid-19-data#complaints_referrals. (OSHA, October 
17, 2021)
ORCHSE Strategies. (2020, October 9). “Petition to the U.S. Department of Labor – 
Occupational Safety and Health Administration (OSHA) for an Emergency Temporary 
Standard (ETS) for Infectious Disease.” (ORCHSE, October 9, 2020)
Richards C. (2020, May 5). 2 Utah County businesses told staff to ignore COVID-19 
guidelines, resulting in 68 positive cases. Daily Herald. 
https://www.heraldextra.com/news/local/2-utah-county-businesses-told-staff-to-ignore-
covid-19-guidelines-resulting-in-68-positive/article_d8426991-a693-5879-9d88-
f9e094aef5b5.html. (Richards, May 5, 2020)
Romo V. (2020, November 19). Tyson managers suspended after allegedly betting if 
workers would contract COVID. National Public Radio. 
https://www.npr.org/2020/11/19/936905707/tyson-managers-suspended-after-allegedly-
betting-if-workers-would-contract-covid. (Romo, November 19, 2020)
Siegel J, Rhinehart E, Jackson M, Chiarello L, and the Healthcare Infection Control 
Practices Advisory Committee. (2007). 2007 Guideline for isolation precautions: 
preventing transmission of infectious agents in healthcare settings. 
https://www.cdc.gov/infectioncontrol/pdf/guidelines/isolation-guidelines-H.pdf. (Siegel et 
al., 2007)
Silva C and Martin M. (2020, November 14). U.S. Surgeon General Blames “Pandemic 
Fatigue” for Recent COVID-19 Surge. NPR. https://www.npr.org/sections/coronavirus-
live-updates/2020/11/14/934986232/u-s-surgeon-general-blames-pandemic-fatigue-for-
recent-covid-19-surge. (Silva and Martin, November 14, 2020)
United States Department of Labor (DOL) and Office of the Inspector General (OIG). 
(2021, February 25). COVID-19: Increased Worksite Complaints and Reduced OSHA 
Inspections Leave U.S. Workers’ Safety at Increased Risk. 
http://www.oig.dol.gov/public/reports/oa/2021/19-21-003-10-105.pdf. (DOL OIG, 
February 25, 2021)  
United States Department of Labor (DOL).  (2020, May 29).  In Re: American Federation 
Of Labor And Congress Of Industrial Organizations. Department Of Labor’s Response to 
the Emergency Petition for a Writ of Mandamus, No. 20-1158 (D.C. Cir., May 29, 2020). 
(DOL, May 29, 2020)

White House. (2021, October 7). White House Report: Vaccination requirements are 
helping vaccinate more people, protect Americans from COVID-19, and strengthen the 
economy. https://www.whitehouse.gov/wp-content/uploads/2021/10/Vaccination-
Requirements-Report.pdf. (White House, October 7, 2021) 
World Health Organization (WHO). (2009). WHO Guidelines on Hand Hygiene in 
Health Care: A Summary – First Global Patient Safety Challenge Clean Care is Safer 
Care.  https://www.ncbi.nlm.nih.gov/books/NBK144013/pdf/Bookshelf_NBK144013.pdf. 
(WHO, 2009)
IV. Conclusion.
This pandemic continues to take a massive toll on American society, and 
addressing it requires a comprehensive national response. This ETS is part of that 
response. OSHA shares the nation’s hope for the promise of recovery created by the 
vaccines.  But in the meantime, it recognizes that we have not yet succeeded in defeating 
the virus, and that many workers across the country are in grave danger. Therefore, this 
ETS, with mitigation measures emphasizing worker vaccination, is necessary. Although 
OSHA finds it necessary to institute specific mitigation measures for the immediate 
future, the agency can adjust as conditions change. Even after issuing an ETS, OSHA 
retains the flexibility to update the ETS to adjust to the subsequent evolution of CDC 
workplace guidance.  This ETS addresses (and incorporates as a main component) the 
major development in infection control over the last year — the development and 
growing implementation of COVID-19 vaccines. Going forward, further developments 
can be addressed through OSHA’s authority to modify the ETS if needed, or to terminate 
it entirely if vaccination and other efforts end the current emergency. However, at this 
point in time, the available evidence indicates that the ETS is necessary to protect 
unvaccinated employees across the country from the grave danger of COVID-19. 
IV. Feasibility
A. Technological Feasibility
This section presents an overview of the technological feasibility assessment for 
OSHA’s Emergency Temporary Standard (ETS) for COVID-19 that requires all 

employers with 100 or more employees to ensure that all employees are fully vaccinated 
unless they implement a policy requiring employees to undergo testing for COVID-19 at 
least once every seven days and wear face coverings. 
Technological feasibility has been interpreted broadly to mean “capable of being 
done” (Am. Textile Mfrs. Inst. v. Donovan, 452 U.S. 490, 509-510 (1981)). A standard is 
technologically feasible if the protective measures it requires already exist, can be 
brought into existence with available technology, or can be created with technology that 
can reasonably be expected to be developed, i.e., technology that “looms on today’s 
horizon” (United Steelworkers of Am., AFL-CIO-CLC v. Marshall, 647 F.2d 1189, 1272 
(D.C. Cir. 1980) (Lead I)); Amer. Iron & Steel Inst. v. OSHA, 939 F.2d 975, 980 (D.C. 
Cir. 1991) (Lead II); American Iron and Steel Inst. v. OSHA, 577 F.2d 825 (3d Cir. 
1978)). Courts have also interpreted technological feasibility to mean that a typical firm 
in each affected industry or application group will reasonably be able to implement the 
requirements of the standard in most operations most of the time (see Public Citizen v. 
OSHA, 557 F.3d 165 (3d Cir. 2009); Lead I, 647 F.2d at 1272; Lead II, 939 F.2d at 990). 
OSHA issued an ETS in June 2021 to protect healthcare and healthcare support 
employees in covered healthcare settings from exposure to SARS-CoV-2. See 86 FR 
32376 (June 21, 2021) (Healthcare ETS). OSHA found the requirements in that ETS to 
be technologically feasible, including a requirement for employers to pay for vaccination 
of employees that is very similar to the requirement in this new ETS.  OSHA’s finding 
that the Healthcare ETS was technologically feasible was primarily based on available 
evidence showing that most healthcare employers, and employers across all industry 
sectors, had already implemented, or were in process of implementing, procedures similar 
to those required by the Healthcare ETS. Similarly, OSHA’s feasibility findings for this 
ETS are based on evidence that vaccination and testing policies, along with the use of 
face coverings consistent with recommendations from the CDC, have been implemented 

in multiple industry sectors as testing and vaccinations were made more widely available 
during the course of the pandemic.
As discussed in Summary and Explanation (Section VI. of this preamble), this 
ETS for vaccination and testing applies to all employers with 100 or more employees, 
except as noted here. It does not apply to workplaces covered under the Safer Federal 
Workforce Task Force COVID-19 Workplace Safety: Guidance for Federal Contractors 
and Subcontractors or settings where any employee provides healthcare services or 
healthcare support services when subject to the requirements of the Healthcare ETS (29 
CFR 1910.502). It also does not apply to employees who do not report to a workplace 
where other individuals such as coworkers or customers are present, employees while 
they are working from home, or employees who work exclusively outdoors.    
As noted above, OSHA has the legal duty to demonstrate that the average 
employer covered by this ETS can comply with that standard in most operations most of 
the time.  This legal analysis is therefore focused solely on whether employers with 100 
or more employees can comply with the standard.  OSHA’s rationale for that scope 
threshold of 100 or more employees is explained in the Summary and Explanation for 
paragraph (b), Section VI.B. of this preamble.
As discussed below, OSHA finds no technological feasibility barriers related to 
compliance with the requirements in the ETS. These requirements include establishing 
and implementing a written mandatory COVID-19 vaccination policy or alternative 
policy requiring testing and face coverings; determining employee vaccination status; 
supporting employee vaccination by providing paid time for vaccination and time off for 
recovery; ensuring that employees who are not fully vaccinated are tested for COVID-19 
at least once every seven days and wear face coverings; and recordkeeping for employee 
vaccination status and testing. 

OSHA reviewed numerous large-scale employer surveys and vaccination and 
testing policies developed by employers, public health organizations, trade association, 
and local, state, and federal governmental bodies. While OSHA discusses several 
examples of these plans and policies below,20 OSHA’s feasibility determination is based 
on all evidence in the rulemaking record. The majority of the survey data and other 
publicly available material that OSHA reviewed pertains to large employers with 100 or 
more employees. 
Additionally, OSHA thoroughly reviewed current and future projections of the 
availability of COVID-19 tests, testing supplies, and laboratory capacity. Based on a 
review of vaccination and testing policies among large employers, OSHA has determined 
that most employers covered by this standard across a wide range of industries have 
either already implemented vaccination and testing programs and require unvaccinated 
employees to wear face coverings, or are capable of implementing programs that comply 
with the requirements in the ETS most of the time. OSHA therefore finds that the 
standard is technologically feasible. 
I. Employer Policy on Vaccination. 
Paragraph (d)(1) of the ETS requires each covered employer to establish and 
implement a written mandatory vaccination policy unless the employer adopts an 
alternative policy requiring COVID-19 testing and face coverings for unvaccinated 
employees, which is discussed later. To meet the definition of “mandatory vaccination 
policy” under paragraph (c), the policy must require: vaccination of all employees, 
including all new employees as soon as practicable, other than those employees (1) for 
whom a vaccine is medically contraindicated, (2) for whom medical necessity requires a 
20 While OSHA references several employers’ policies, this is not intended to serve as an endorsement of 
those plans or an indication that those plans comply with the ETS. Rather, the plans and best practice 
documents show that developing and implementing policies to address employee COVID-19 vaccination in 
various workplaces is capable of being done in a variety of industries, and therefore, compliance with the 
ETS is technologically feasible. 

delay in vaccination, or (3) those legally entitled to a reasonable accommodation under 
federal civil rights laws because they have a disability or sincerely-held religious beliefs, 
practices, or observances that conflict with the vaccination requirement. 
OSHA requires employers to implement a mandatory vaccination requirement, 
but provides an exemption for an alternative policy that allows employees to choose 
either to be fully vaccinated or to be regularly tested and wear a face covering. This 
compliance options mean that the ETS is technologically feasible if employers across 
various industries are capable of implementing either policy, but nevertheless OSHA 
analyzes both employer policy options to demonstrate that there are no significant 
technological barriers to either approach. 
OSHA reviewed several large-scale employer surveys related to vaccination 
policies across the country covering a wide range of industry sectors. Surveys conducted 
by Arizona State University (ASU) and the World Economic Forum (WEF), called 
COVID-19 Workplace Commons - Keeping Workers Well, show that most employers 
already have some type of vaccination policy, with more than 60 percent of surveyed 
employers requiring vaccinations for some or all employees. These survey results further 
support OSHA’s determination that the vaccination policy requirement is feasible. 
The ASU WEF workplace COVID-19 surveys collected information from 
employers across industry sectors about their response to the COVID-19 pandemic. The 
results and responses from more than 1,400 companies are publicly available through the 
ASU College of Health Solutions webpage COVID-19 Diagnostics Commons (ASU, 
October 5, 2021). Case studies from employers are also available within the interactive 
dashboard on that webpage. The surveys consisted of numerous questions about 
workplace pandemic response, including questions related to vaccination policies and 
testing unvaccinated employees.  

The most recent COVID-19 survey data was collected between August 2, 2021 
and August 20, 2021 and reported in September 2021 (accessible through the COVID-19 
Workplace Commons). More than 1,400 companies operating 1143 facilities in 23 
industry sectors were part of the survey, the majority of which are companies of the size 
covered by the ETS. Ninety percent of facilities surveyed had 100 or more employees at 
their facilities, and 56% had more than 100 but less than 1,000 employees at their 
facilities. The industry sectors surveyed include: technology and software; business and 
professional services; manufacturing; construction; healthcare, hospitals, and clinics; 
retail stores; retail food stores; consumer retail service; energy and utilities; nonprofit 
organizations; education (colleges and universities); education (pre-K to 12); real estate 
and property management; agriculture and food production; healthcare services; media 
and entertainment; government and quasi-public; biotech, pharmaceuticals, and 
diagnostics; restaurants and food service; hotels and casinos; transportation, distribution, 
and logistics; consumer transportation; and recreation (ASU WEF, September 2021). 
The survey responses related to vaccination policies support OSHA’s 
determination that it is feasible for covered employers to implement mandatory COVID-
19 vaccination policies. The survey results showed that 45% of employers surveyed 
require all employees to be vaccinated against COVID-19, and an additional 16% require 
some of its employees to be vaccinated against COVID-19. (ASU WEF, September 
2021). Only three percent of employers surveyed did not have a vaccination policy at the 
time (ASU WEF, September 2021). While this survey covers a wide range of industries it 
may not represent the percentage of companies implementing mandatory vaccination 
policies in general populations but for the feasibility purposes it demonstrates that it has 
and can be done. 
OSHA also reviewed slightly older survey data, which, even though it shows 
somewhat lower rates of employer vaccination mandates, still supports OSHA’s finding 

that such vaccination polices are feasible. In late June 2021, the National Safety Council 
(NSC) conducted three national surveys, one organizational and two workforce, of 
private companies, nonprofits, legal experts, public health professionals, medical 
professionals and government agencies that have addressed workforce COVID-19 
vaccinations based on best practices and proven workplace safety strategies. The survey 
results show that many employers and organizations are currently requiring employees to 
be vaccinated. 
The three surveys were distributed to 300 employers and organizations across the 
country and from a wide range of industries to collect data on pandemic response, 
including implementation of COVID-19 vaccine policies and testing among their 
workforce. Of the employers and organizations surveyed in June 2021, the NSC found 
that 20% were implementing some form of a worker vaccination requirement. While 
OSHA believes that the ASU WEF surveys (which included more employers and are 
more recent) are better indicators of current employer vaccination policies, the NSC 
surveys also support the feasibility of employer vaccination mandates (NSC, September 
2021)
The NSC, in partnership with the Health Action Alliance (HAA) and the Centers 
for Disease Control and Prevention (CDC), have developed a multifaceted, 
comprehensive effort called SAFER, aimed at helping employers prioritize health and 
safety as they develop plans and polices for their employees to return to the workplace 
(NSC, May 17, 2021). Through SAFER, the NSC and HAA developed a web-based 
decision tool to guide employers on health, legal, and other considerations to prioritize 
the health and safety of workers. Due to the Delta Variant surge of new COVID-19 cases 
across the United States, the NSC and HAA revised the SAFER resources, including the 
online tool, to include information about employer requirements for COVID-19 
vaccinations. These include guides for developing plans and policies to support employee 

vaccination through mandates and incentives; the collection and maintenance of COVID-
19 vaccination records; and various considerations for testing unvaccinated workers. 
(HAA and NSC, September 17, 2021). The availability of these publicly-accessible tools 
to help employers develop vaccination policies further reduces any potential barriers for 
covered employers to establish and implement a written policy requiring each employee 
to be fully vaccinated against COVID-19, or alternatively to establish a policy allowing 
employees to choose whether to be fully vaccinated or tested for COVID-19 at least 
every seven days and wear face coverings. 
The HAA maintains an online list of large companies requiring vaccinations for 
all or part of their workforce or customers. OSHA reviewed the list of companies, drawn 
from news reports and employer websites, with requirements for COVID-19 vaccination. 
Most of the companies listed require some or all employees to be vaccinated against 
COVID-19 while allowing medical exemptions or reasonable accommodations for 
disability or religious reasons. There are currently 188 listed companies across numerous 
industry sectors, including Amtrak, Deloitte, Google, The Walt Disney Company, 
Walmart, and the U.S. Chamber of Commerce.21 
While healthcare employers subject to 29 CFR 1910.502 are not covered by this 
ETS, a number of large healthcare employers have implemented mandatory vaccine 
policies. This also shows the feasibility of the employers implementing mandatory 
vaccination requirements, often on large scales. According to the American Hospital 
Association (AHA), over 1,800 hospitals have one or more vaccination requirements in 
place (Becker’s Hospital Review, October 11, 2021). Large healthcare employers 
mandating that their employees be vaccinated include Kaiser Permanente, the nation’s 
largest integrated, nonprofit health care organization with more than 216,000 employees 
21 https://www.healthaction.org/resources/vaccines/covid-19-vaccines-employer-requirements-health-
action-alliance?0405d6f4_page=1 (last visited October 2, 2021).

and more than 23,000 physicians (Kaiser Permanente, August 2, 2021); Trinity Health, 
one of the largest multi-institutional Catholic health care delivery systems in the nation, 
with more than 123,000 employees and 90 hospitals in 22 states (Trinity Health, July 8, 
2021); Sanford Health, which operates in 26 states and employs nearly 50,000 people 
(Sanford Health, July 22, 2021); and Genesis Health Care, a large U.S. nursing home 
chain with over 40,000 employees working in more than 250 centers across 23 states 
(Genesis Health Care, September 29, 2021). 
Under paragraph (d)(2), if employers do not establish and implement a written 
mandatory vaccination policy, the employer must establish and implement a written 
policy allowing any employees not subject to a mandatory vaccination policy to either 
choose to be fully vaccinated or regularly tested for COVID-19 and wear a face covering. 
A substantial number of employers already have such policies in place. For example, the 
ASU WEF survey shows that 30% of employers surveyed require unvaccinated 
employees to participate in mandatory COVID-19 testing and 30% of employers require 
face coverings for unvaccinated employees (ASU WEF, September 2021). 
OSHA also notes a number of state COVID-19 vaccination requirements. In 
response to the Delta Variant surge, 19 states have implemented written COVID-19 
vaccination and testing policies for state employees and 23 states have done so for 
healthcare employees (NASHP, October 1, 2021). For example, on September 20, 2021, 
the Colorado Department of Public Health and Environment (CDPHE) implemented 
policies requiring state employees and personnel at health care facilities and hospitals to 
be fully vaccinated against COVID-19. All state employees must either be fully 
vaccinated against COVID-19 or participate in twice-weekly testing. Employees are 
allowed work time to get tested and administrative or Public Health Emergency Leave to 
get vaccinated. Employees who are not fully vaccinated must wear masks inside state 
facilities when they are around others. On August 30, 2021, the State Board of Health 

approved a vaccine requirement for personnel in health care settings with high-risk 
patients. All personnel affected by this rule needed to receive their first dose of COVID-
19 vaccine by September 30, 2021, and must be fully vaccinated by October 31, 2021 
(CDPHE, September 17, 2021). 
A number of local governments have also implemented policies requiring 
COVID-19 vaccination or testing for employees. For example, the Fulton County Board 
of Commissioners in Georgia recently approved a “Vax or Test” policy requiring 
employees to get vaccinated or tested for COVID-19 each week. Since September 6, 
2021, Fulton County has required all County employees, as a condition of employment, 
to either be vaccinated against COVID-19 or be tested weekly for COVID-19 unless an 
employee is granted a reasonable accommodation (Fulton County Government, 
September 03, 2021). The multitude of local, state, and employer vaccination or testing 
mandates across the country support OSHA’s finding that such policies are feasible.
II. Determining Employee Vaccination Status. 
Paragraph (e) of the ETS requires employers to determine the vaccination status 
of each employee. Employers must require employees to provide an acceptable proof of 
vaccination status, including whether they are fully or partially vaccinated. As discussed 
in Summary and Explanation (Section VI. of this preamble), acceptable proof of 
vaccination status is: (i) the record of immunization from a health care provider or 
pharmacy; (ii) a copy of the COVID-19 Vaccination Record Card; (iii) a copy of medical 
records documenting the vaccination; (iv) a copy of immunization records from a public 
health, state, or tribal immunization information system; or a copy of any other official 
documentation that contains the type of vaccine administered, date(s) of administration, 
and the name of the health care professional(s) or clinic site(s) administering the 
vaccine(s). A signed and dated employee attestation is acceptable in instances when an 
employee is unable to produce proof of vaccination. Given the attestation option, there 

are no technological barriers to the provision for proof of vaccination status. As discussed 
below, many employers requiring proof of vaccination have successfully implemented 
such policies even without allowing the flexibility of the attestation option.
The employer must maintain a record and a roster of each employee’s vaccination 
status. This information is subject to applicable legal requirements for confidentiality of 
medical information. These records must be preserved while the ETS is in effect. OSHA 
is not aware of any technological challenges that the large employers covered by this ETS 
would face with respect to collecting and maintaining records. This is a performance-
based requirement, meaning that employers have the flexibility to structure their systems 
to fit within current systems, such as those relating to personnel records, tax records, and 
other sensitive or confidential records gathered and maintained by large employers.
A number of the surveys discussed above also show that most employers with 
vaccine mandates require proof of vaccination. For example, ASU WEF workplace 
COVID-19 survey from fall 2021 found that 60% of employers that required vaccinations 
also required proof of vaccination from employees. The NSC study from June 2021 
found that 45% of employers with COVID-19 vaccination requirements required proof of 
vaccination, such as submitting a copy of the COVID-19 vaccination card. An additional 
30% of employers surveyed verify employee vaccination status through self-reporting 
based on the honor system.  
Additionally, a large-scale survey conducted by the Willis Towers Watson 
consulting firm between August 18 and 25, 2021, showed that a majority of employers 
currently track their employees’ vaccination status. Nearly one thousand employers 
responded to this survey, and they collectively employ 9.7 million workers from 
industries across the public and private sectors including manufacturing, general services, 
wholesale and retail, IT and telecom, healthcare, financial services, energy and utilities, 
and public sector and education (Willis Towers Watson, June 23, 2021). Nearly six in 10 

(59%) currently track their workers’ vaccination status and another 19% are planning or 
considering doing so later this year. A majority (62%) of those employers who currently 
track their workers’ vaccination status require proof of vaccination, such as CDC 
vaccination cards, while 36% rely on employees to self-report (Willis Towers Watson, 
September 1, 2021). 
Other evidence in the record also supports the feasibility both of gathering proof 
of vaccination and determining employees’ vaccination status. Many large employers 
with vaccination policies require employees to submit proof of vaccination. For example, 
Tyson Foods requires employees to submit proof of vaccination to Tyson Foods 
Vaccination Verification Program in order to qualify for the company’s vaccination 
incentive (Tyson Foods, August 3, 2021). Similarly, Capital One bank requires all 
employees, contractors, vendors, and visitors to Capital One facilities to show proof of 
vaccination. (Capital One, August 11, 2021). The International Union of Painters and 
Allied Trades (IUPAT), which represents 140,000 craftspeople in the U.S. and Canada 
and has implemented vaccine requirements for its members, also requires all of its own 
non–bargaining unit office and field employees to show proof of vaccination. (IUPAT, 
May 10, 2021). 
CVS Health, a health conglomerate with more than 300,000 employees, including 
more than 40,000 physicians, pharmacists, nurses and nurse practitioners, has mandated 
COVID-19 vaccination for its nurses, pharmacists and other employees who interact with 
patients and requires proof of vaccination for those employees (CVS Health, August 23, 
2021).
The surveys and employer policies reviewed by OSHA all support the agency’s 
finding that it is feasible for employers to determine their employees’ vaccination status 
and collect proof of vaccination.
III. Providing Support for Vaccination.

Paragraph (f) of the ETS requires employers to support COVID-19 vaccination 
for each employee by providing a reasonable amount of time to each employee for 
vaccination and reasonable time and paid sick leave to each employee for side effects 
experienced following vaccination. The feasibility of paying for the time is addressed in 
OSHA’s economic analysis. 
This technological feasibility determination focuses on whether employers would 
encounter obstacles in implementing payment policies that would make this requirement 
infeasible for the large employers covered by this ETS. OSHA has determined that there 
are no such obstacles. Most significantly, OSHA has already required this type of system 
for employers covered by the Healthcare ETS and nearly four months after that ETS took 
effect, OSHA is not aware that employers covered by that ETS experienced any 
technological compliance difficulties with respect to that requirement. In addition, many 
employers have already implemented policies such as those required to comply with this 
new ETS as a way of incentivizing employee vaccination. For example, the ASU WEF 
workplace COVID-19 survey from fall 2021 found that 60% of employers surveyed 
offered incentives for employees to be vaccinated. These incentives ranged from 
additional paid time off, cash, the ability to bypass regular testing and/or daily health 
screening requirements, and gifts. Eighteen percent of surveyed employers already 
provide additional time off for COVID-19 vaccination. Moreover, the NSC survey found 
that 86% of surveyed organizations had implemented policies such as paid time off, 
assistance with scheduling and transportation, and/or onsite vaccination. 
OSHA’s review of plans and best practice documents from the HAA registry and 
from other publicly-available sources also inform OSHA’s finding that it is feasible for 
large employers to support employee vaccination (HAA, October 10, 2021). As part of 
this review, OSHA analyzed the ways that employers are currently supporting employee 
vaccination. One employer in the restaurant industry, the Fifty/50 Group, a Chicago-

based restaurant group comprised of 14 establishments that requires employees to be 
fully vaccinated, offers paid time off for anyone getting a vaccine or feeling the mild 
after-effects. (Fifty/50 Group, May 18, 2021). Another employer in the animal 
slaughtering and processing industry, Tyson Foods, requires COVID-19 vaccinations for 
its U.S. workforce and also offers $200 and up to four hours of regular pay if employees 
are vaccinated outside of their normal shift or through an external source (Tyson Foods, 
August 3, 2021). In addition, Tyson Foods supports onsite vaccination events in 
collaboration with local health departments and healthcare providers to improve 
accessibility to vaccination. Tyson Foods has hosted more than 100 vaccination events at 
its locations across the country. 
The evidence in the record demonstrates that many employers are already offering 
the types of vaccination support required by paragraph (f). Combined with OSHA’s 
previous finding for a similar provision in the Healthcare ETS and the lack of compliance 
difficulties reported while that ETS has been in effect, OSHA therefore finds this 
requirement is technologically feasible.
IV. COVID-19 testing for employees who are not fully vaccinated.
Paragraph (g) of the ETS requires employers to ensure that employees who are 
not fully vaccinated and who report at least once every seven days to a workplace where 
other individuals such as coworkers or customers are present are: (1) tested for COVID-
19 at least once every seven days; and (2) provide documentation of the most recent 
COVID-19 test result to the employer no later than the seventh day following the date the 
employee last provided a test result. Employers must also ensure that employees who are 
not fully vaccinated and do not report during a period of seven or more days to a 
workplace where other individuals are present are: (1) tested for COVID-19 within seven 
days prior to returning to the workplace; and (2) provide documentation of that test result 
upon return to the workplace. 

Employees who are not fully vaccinated must be tested with a COVID-19 test, 
which is a test for SARS-CoV-2 that is: (i) cleared, approved, or authorized, including in 
an Emergency Use Authorization (EUA) by the U.S. Food and Drug Administration 
(FDA) to detect current infection with the SARS-CoV-2 virus (e.g. a viral test); (ii) 
administered in accordance with the authorized instructions; and (iii) not both self-
administered and self-read unless observed by the employer or an authorized telehealth 
proctor. Examples of tests that satisfy this requirement include tests with specimens that 
are processed by a laboratory (including home or on-site collected specimens which are 
processed either individually or as pooled specimens), proctored over-the-counter tests, 
point of care tests, and tests where specimen collection is either done or observed by an 
employer. 
COVID-19 testing has become more widely available throughout the pandemic 
and as of September 2021, the FDA has authorized approximately 250 tests and 
collection kits that diagnose current infection with the SARS-CoV-2 virus and may be 
acceptable under the ETS (FDA, September 10, 2021), and by October 1, 2021, the 
number of EUAs issued had grown to 324 (FDA, October 1, 2021). The ETS permits 
compliance through use of a wide range of FDA-authorized tests that are readily 
available, so there is little doubt that testing itself is technologically feasible. 
This technological feasibility analysis therefore focuses on whether testing will 
continue to be readily available in quantities sufficient to meet the potential increase in 
testing demand while this ETS is in place. Given the wide variety of tests that can be used 
to comply with this ETS and OSHA’s review of information about the existing 
manufacturing and distribution capabilities of test manufacturers, the agency does not 
anticipate feasibility issues related to ensuring that employees can get access to one of the 
acceptable tests within the time frames required by the ETS.  
a. Brief overview of testing and administration.

COVID-19 tests that are cleared, approved, or authorized, including in an 
Emergency Use Authorization (EUA), by the FDA to detect current infection with the 
SARS-CoV-2 virus (e.g., a viral test) satisfy the ETS. FDA-cleared, approved, or 
authorized molecular diagnostic tests and antigen tests are permitted under the ETS when 
used as authorized by the FDA and with a Clinical Laboratory Improvement 
Amendments of 1988 (CLIA) certification when appropriate. As described in the 
Summary and Explanation for paragraph (g) (Section VI.G. of this preamble), NAATs 
are a type of molecular test that detect genetic material. As of October 14, 2021, the FDA 
had issued EUAs for 264 molecular COVID-19 tests including tests specified to be used 
“with certain conditions of authorization required of the manufacturer and authorized 
laboratories”, 81 of which are authorized for home collection. Additionally, the FDA has 
issued EUAs for 2 OTC molecular COVID-19 test kits available without a prescription 
(FDA, October 14, 2021b). 
NAATs, such as real-time reverse transcription-polymerase chain reaction (RT-
PCR), have greater accuracy than antigen tests. However, most FDA-authorized NAATs 
need to be processed in a laboratory certified under the Clinical Laboratory Improvement 
Amendments of 1988 (referred to as a “CLIA-certified laboratory”) with variable time to 
results (~1–2 days). While the NAAT test is a more reliable test, the antigen test is faster 
and less expensive. 
An antigen test is an in vitro diagnostic test used to detect active SARS-CoV-2 
infection.  As of October 14, 2021, the FDA had issued 37 EUAs for COVID-19 antigen 
tests, including eight EUAs for over-the-counter (OTC) antigen tests that can be used 
without a prescription (FDA, October 14, 2021a).
Administration of an antigen test that meets the definition of COVID-19 test 
under this ETS falls into one of several categories:  OTC employee self-tests that are 
observed by employers or authorized telehealth proctors; point-of-care (POC) or OTC 

tests performed by employers with a CLIA certificate of waiver; and other FDA cleared, 
approved, or authorized antigen tests that are analyzed in a CLIA certified laboratory 
setting (FDA, October 14, 2021a). The FDA has authorized POC tests that can be used at 
a place of employment when the facility is operating under a CLIA certificate of waiver. 
A CLIA certificate of waiver can be issued by CMS and may, when consistent with 
FDA’s authorization, allow a laboratory to run a SARS-CoV-2 test outside a high or 
moderate complexity traditional clinical laboratory setting (CDC, September 9, 2021).  In 
accordance with the CLIA certificate of waiver, the laboratory or POC testing site must 
use a test authorized for that location, like an FDA EUA POC test, and must adhere to the 
authorized test instructions to avoid human error. Certain COVID-19 antigen diagnostic 
tests can be analyzed on-site (where the person took the nasal swab) when that facility is 
operating under a CLIA certificate of waiver, while others must be analyzed in a CLIA 
certified high or moderate complexity laboratory setting. Some COVID-19 antigen 
diagnostic tests are authorized for use at home, without the need to send a sample to a 
laboratory. Antigen tests generally return results in approximately 15-30 minutes. The 
CDC provides training materials created by test manufacturers for POC antigen testing 
and reading of results for SARS-CoV-2 (CDC, July 8, 2021).
COVID-19 antigen diagnostic tests are found at physician offices; urgent care 
facilities; pharmacies, such as CVS or Walgreens; school health clinics; long-term care 
facilities and nursing homes; temporary locations, such as drive-through sites managed 
by local organizations; and other locations across the country (CDC, July 8, 2021; CVS 
Health, October 2021; Walgreens, October 8, 2021). The availability of government-
offered antigen tests varies by state, and may be free or subsidized and accessible without 
a prescription or physician note (RiteAid, October 2021; Walgreens, October 2021; HHS, 
June 11, 2021). The Department of Health and Human Services (HHS) provides a 
publicly-available list of community-based testing locations in each state that offer free 

COVID-19 testing for insured and uninsured residents (HHS, August 17, 2021). 
Pharmacies and other locations often provide antigen tests by appointment, although 
some will allow testing for walk-ins (CVS Health, September 2021; Walgreens, October 
8, 2021). COVID test kits are currently available from several on-line retailers (Amazon, 
October 12, 2021).
b. Testing frequency.
The ASU WEF survey data also supports OSHA’s finding that the requirement 
for employees who are not fully vaccinated to be tested at least every seven days is 
feasible. The ASU WEF found that 73% of survey surveyed employers (797 employers) 
had testing policies for their workforce, and 76% of those employers had implemented 
mandatory testing requirements. Additionally, 25% of employers with testing polices had 
implemented requirements for routine testing of a portion of or the entire workforce, and 
41% no longer require testing for fully vaccinated employees. Of the employers that test 
employees, 27% of those perform viral testing daily and 46% perform viral test once a 
week. Finally, 38% of companies exclusively administer polymerase chain reaction 
(PCR) tests (PCR tests are a type of NAAT), 17% exclusively administer antigen tests, 
and 45% administer both. Companies administer a range of COVID-19 tests and conduct 
testing at a variety of locations (some companies use more than one location). Forty-two 
percent of companies test workers at health testing laboratories, 35% test onsite at work, 
28% test at hospitals, 23% test at retail pharmacies, 13% test at universities, 9% test at 
home to be sent a lab for evaluation, and 5% test at home for immediate results (ASU 
WEF, September 2021). 
OSHA also evaluated evidence of employers’ current testing efforts by reviewing 
existing COVID-19 practices developed by employers, trade associations, and other 
organizations. Based on its review, OSHA concludes that it is feasible for most covered 

employees (and therefore their employers) to be tested in compliance with the ETS 
requirements for frequency of testing. 
OSHA notes that there are several options for large employers to consider if they 
want to help facilitate testing for employees who are not vaccinated. Delta Airlines, for 
example, currently requires weekly COVID-19 testing for all of its employees who are 
not vaccinated, and the company has engaged the Mayo Clinic Laboratories to help 
design the employee testing program, assist in administering diagnostic and serology 
tests, and analyze the results to determine broader trends and provide recommendations 
to Delta’s existing policies and procedures (Mayo Clinic Laboratories, June 30, 2020). 
Delta Airlines also operates onsite testing in cities with large employee populations 
including Atlanta, Minneapolis, and New York. It recently extended an at-home 
specimen collection option to all U.S. employees, through which Quest Diagnostics will 
send self-collection kits directly to an employee’s doorstep upon request and support 
complete laboratory confirmation for results (Delta, August 25, 2021). 
c. Availability of COVID-19 Tests. 
In the spring and early summer months of 2021, demand for tests decreased as 
vaccinations began to increase and the number of COVID-19 cases declined before the 
Delta surge and some manufacturers slowed production of COVID-19 tests. However, 
the number of tests performed daily has grown considerably over the summer due to the 
Delta Variant surge and re-openings of workplaces and schools. In parallel with the Delta 
surge, COVID-19 testing has increased from a daily average of about 450,000 in early 
July 2021 to about 1.8 million by mid-September 2021, or roughly 12.6 million per week 
(JHU, October 8, 2021). This data does not include any self-administered OTC tests, 
which will be discussed below.  
OSHA’s review of the evidence shows that the increasing rate of production of 
COVID-19 tests is more than adequate to meet rising demand related to compliance with 

the ETS testing option before the 60-day delayed testing compliance date (see paragraph 
(m)(2)(ii)). This determination is largely based on the number of tests with FDA EUAs 
actively being produced through the National Institutes of Health (NIH) Rapid 
Acceleration of Diagnostics (RADx) initiative described below. 
According to the Johns Hopkins University of Medicine Coronavirus Resource 
Center, the total tests administered in August 2021 was approximately 44.4 million (or 
approximately 11.1 million per week). Id. During that same month, the total tests 
produced by the NIH RADx contracts was approximately 121 million (which would 
average to 30.25 million per week), resulting in a substantial surplus of available tests 
(NIBIB, September 28, 2021). As discussed in Economic Analysis, Section IV.B. of this 
preamble, Table IV.B.8, OSHA estimates that as many as 7.2 million tests may be 
administered weekly under this standard; however, 7.2 million is almost certainly an 
overestimate because it does not exclude employees who are already required to be tested 
by their employers and would continue to be tested at the same frequency after the ETS. 
Even if testing is increased by 7.2 million tests per week because of the ETS, that would 
still mean a surplus of nearly 12 million tests per week beyond what would be need to 
continue at current testing levels with the addition of ETS-related tests (30.25 – 11.1 – 
7.2 = 11.95 million surplus per week).
The total number of tests administered during June, July, and August 2021, the 
period of the summer including the Delta Variant surge and other reasons for substantial 
testing increases such as re-opening of schools, was approximately 87 million tests, an 
average of approximately 6.7 million per week (JHU, October 8, 2021). During that 
period, more than 400 million COVID-19 tests were produced through the NIH RADx 
initiative, or roughly 33 million per week. OSHA anticipates that this surplus of tests will 
continue to increase the availability of tests that can be used to comply with the ETS. 

The data from the Johns Hopkins Coronavirus Resource Center is collected from 
state and county government sources, so it does not include any self-administered OTC 
tests. Additionally, while all states report PCR testing, not all states report antigen testing. 
Nevertheless, the data from Johns Hopkins Coronavirus Resource Center is the best 
available evidence from which to estimate the total number of tests administered during a 
given period of time. Even though the number of administered tests reported through the 
Johns Hopkins Coronavirus Resource Center does not include unreported OTC tests, the 
NIH RADx program data shows a large surplus and sufficient additional COVID-19 test 
capacity relative to the number of administered tests reported. Additionally, the NIH 
RADx program will further allow for increased test distribution through retail markets 
and will address any increase in demand due to companies that may stockpile tests. This 
increased availability will strengthen test capacity, further enabling compliance with the 
ETS testing provision (NIBIB, September 28, 2021). OSHA has determined that even 
with an estimated additional 7.2 million tests administered weekly due to the ETS (see 
Economic Analysis (Section IV.B. of this preamble)), there are sufficient COVID-19 tests 
available to allow for both employers and employees to obtain COVID-19 tests through a 
variety of retail sources (e.g., local pharmacies, on-line purchasing as discussed above). 
Determinations of testing capacity are aggregate measures of domestic and global 
market and supply chains. Throughout the pandemic, diagnostic testing capacity has been 
stressed by the increased demand, as some products that are part of a global market 
cannot adapt by simply increasing manufacturing in one country (e.g., laboratory 
instruments), and other products manufactured domestically require capital investments 
to address rising demands (e.g., extraction kits) (CRS, February 25, 2021). As discussed 
below, because of the substantial investments made, OSHA projects that the diagnostic 
testing capacity can meet the increased demand due to this ETS. 

OSHA evaluated multiple projections of current and future testing capacity and 
determined that projections related to the NIH initiatives discussed below are the most 
reliable estimates of current and future testing capacity for its technological feasibility 
assessment. Test manufacturers receiving NIH, FDA, and Biomedical Advanced 
Research and Development Authority (BARDA) (a component of HHS) funding as part 
of these programs undergo a submission and authorization process where their production 
capacity and pipeline are assessed and production quantities are validated. As explained 
below, as of August 2021, the NIH data indicates testing capacity stands at about 30 
million tests per week, and capacity continues to grow (NIBIB, September 28, 2021). 
OSHA notes that this number underestimates the total number of tests available each 
week, as it only includes companies that have received funding for tests and testing 
supplies through the NIH initiatives described below.  
The NIH has identified constraints on testing capacity as an area of focus and 
investment since the beginning of the COVID-19 pandemic, and OSHA examined 
potential constraints on testing capacity as part of its feasibility analysis. As described 
below, massive investments in testing capabilities, particularly in underserved areas, have 
largely mitigated issues with the availability of COVID-19 tests. Further, testing capacity 
continues to grow as new tests are developed and brought to market and manufacturers 
can ramp up supply to meet any future testing demands if need be.
The FDA has authorized more than 320 tests and collection kits that diagnose 
current infection with the SARS-CoV-2 virus and may be acceptable under the ETS 
(FDA, October 1, 2021). Among other criteria, the standard allows for the use of tests 
with specimens that are processed by a CLIA certified laboratory (including home or on-
site collected specimens which are processed either individually or as pooled specimens), 
proctored over-the-counter tests, point of care tests, and tests where specimen collection 
and processing is either done or observed by an employer. As explained above, many 

employers across various industry sectors have already implemented policies for onsite 
testing. The use of FDA-authorized POC tests by these employers would be compliant 
with the testing provision of the ETS if the entity administering the test holds a CLIA 
certificate as required by the EUA. COVID-19 OTC tests that are both self-administered 
and self-read by employees do not satisfy the testing requirement unless observed by the 
employer or an authorized telehealth proctor.  In the event that the employer is merely 
observing the employee conduct a test, a CLIA certificate would not be needed. 
There have been extensive investments, including by the federal government, to 
help ensure that COVID-19 tests are widely available. Section 2401 of the American 
Rescue Plan appropriated $47,800,000 to the Secretary of the HHS, to remain available 
until expended, to carry out activities to detect, diagnose, trace, and monitor SARS-CoV-
2 and COVID-19 infections and related strategies to mitigate the spread of COVID-19. 
Funds were made available to implement a national testing strategy; provide technical 
assistance, guidance, support, and awards grants or cooperative agreements to State, 
local, and territorial public health departments; and support the development, 
manufacturing, procurement, distribution, and administration of tests to detect or 
diagnose SARS-CoV-2 and COVID-19; and establish federal, state, local and territorial 
testing capabilities.
On April 29, 2020, the NIH established the RADx initiative with a $1.5 billion 
investment. The RADx initiative has used this funding to speed development of rapid and 
widely-accessible COVID-19 testing (NIH, April 29, 2020). On October 6, 2020, the 
NIH and BARDA established the RADx Technology (RADx-Tech) and RADx Advanced 
Technology Platforms (RADx-ATP) programs to speed innovation in the development, 
commercialization, and implementation of technologies for COVID-19 testing 
specifically for late-stage scale-up projects. Through the RADx Tech and RADx-ATP 
programs, the NIH and BARDA have awarded a total of $476.4 million in manufacturing 

expansion contracts supporting a combined portfolio of 22 companies in the U.S. (NIH, 
October 6, 2020). 
These programs have significantly increased testing capacity throughout the 
country. Since being established, RADx has worked closely with the FDA, the CDC, and 
BARDA to move more advanced diagnostic technologies swiftly through the 
development pipeline toward commercialization and broad availability. On April 28, 
2021, the Institute of Electrical and Electronic Engineers (IEEE) dedicated a special issue 
in the Journal of Engineering in Medicine and Biology exploring the innovative structure 
and operation of the RADx Tech program and determined that the initiatives had 
succeeded in dramatically increasing COVID-19 testing capacity in the United States. 
The IEEE report found that the RADx Tech/ATP programs, in conjunction with BARDA 
and the FDA, had streamlined and bolstered the national COVID-19 testing capacity. At 
the time of the report, the RADx Tech/ATP programs had increased the number of testing 
makers to 150 companies that, as a result of the NIH/BARDA investments, had the 
capacity to produce up to 1.9 million tests per day (IEEE, April 28, 2021).
The NIH RADx-TECH/ATP initiative entered its second phase on September 28, 
2021, and at that time the supported companies had collectively produced over 500 
million tests, received 27 FDA authorizations, and developed the first OTC COVID-19 
test for use at home. These September 2021 investments are supporting late stage 
development of innovative point-of-care and home-based tests, as well as improved 
clinical laboratory tests that will increase the capacity of testing in the U.S. A full list of 
active contracts and supported U.S. COVID-19 testing manufacturers can be found on the 
NIH RADx-TECH/ATP programs: Phase 2 awards (NIBIB, October 14, 2021).
The following example shows the NIH RADx EUA pipeline process. On May 9, 
2020, the FDA authorized the first EUA for a COVID-19 antigen test, a new category of 
tests for use in the ongoing pandemic. Quidel was awarded a contract under the NIH 

RADx TECH/ATP phase 1 initiative for the Sofia 2 SARS Antigen FIA for use in high 
and moderate complexity laboratories certified by CLIA, as well as for point-of-care 
testing by facilities operating under a CLIA certificate of waiver (FDA, May 9, 2020). On 
July 31, 2020, Quidel announced that it had received a contract for $71 million under the 
NIH RADx TECH/ATP program, phase 1, to accelerate the expansion of its 
manufacturing capacity for production of the SARS-CoV-2 rapid antigen test and quickly 
exceeded that capacity (Quidel Corp., July 31, 2020). On March 31, 2021, the FDA then 
authorized a second EUA from Quidel under contract with the NIH RADx initiative for 
the QuickVue At-Home OTC COVID-19 Test, another antigen test where certain 
individuals can rapidly collect and test their sample at home, without needing to send a 
sample to a CLIA certifed laboratory for analysis (FDA, March 31, 2021). Furthermore, 
based on the success of the Quidel for the Sofia 2 SARS Antigen FIA increasing 
production capacity, the NIH granted another $70 million contract for manufacturing 
Capacity Scale-Up for Sofia SARS Antigen and Sofia Influenza A+B/SARS FIAs on 
June 11, 2021 (FDA, June 11, 2021). 
The RADx-TECH/ATP initiative maintains a dashboard of manufacturer testing 
data from supported U.S. firms. OSHA reviewed the data available on the dashboard as 
part of its determination of feasibility. In August 2021, the data showed that U.S. 
manufacturers supported by the NIH RADx-TECH/ATP were producing approximately 
30 million tests per week (NIBIB, September 28, 2021). 
While consumers in some parts of the country have encountered difficulty 
obtaining rapid at-home tests, on October 4, 2021, the FDA granted EUA for the ACON 
Laboratories Flowflex COVID-19 Home Test, which is anticipated to double rapid at-
home testing capacity in the United States within weeks (and well before compliance 
dates for testing required by this ETS) (FDA, October 4, 2021). By the end of the 2021 
(ahead of the paragraph (g) compliance date), the manufacturer plans to produce more 

than 100 million tests per month and plans to produce more than 200 million tests per 
month by February 2022 (FDA, October 4, 2021). On October 6, 2021, the 
Administration announced a plan to buy $1 billion worth of rapid at-home COVID-19 
tests; this purchase, coupled with the October 4 authorization of the Flowflex COVID-19 
test, is expected to increase the number of available at-home COVID-19 tests to 200 
million per month by December 2021 (Washington Post, October 6, 2021).
These investments have had a pronounced impact on the availability of testing 
and employers’ use of testing in the workplace. ASU’s recent report, How Work has 
Changed: The Lasting Impact of COVID-19 on the Workplace, ascribed the jump in the 
percentage of employers that test their employees from 17% in the fall of 2020 to 70% in 
the fall of 2021 in large part to the increased availability of testing. In particular, the 
report noted that by the spring of 2021, “it became relatively easy to acquire tests and 
hire testing service providers. There are more labs and companies with EUA’s and most 
have enough capacity that there are few shortages.” (ASU WEF, September 2021). 
Moreover, to ensure a broad, sustained capacity for COVID-19 test production, 
multiple COVID-19 test manufacturers have been mobilized by authority of the Defense 
Production Act. Under the Administration’s plan to increase COVID-19 testing, the 
federal government will directly purchase and distribute 280 million- rapid point-of-care 
and over-the-counter at-home COVID-19 tests, sending 25 million free at-home rapid 
tests to community health centers and food banks. These actions will provide tests for use 
by communities to build adequate stockpiles, as well as the sustained production to be 
able to scale up production as needed in the future. Additionally, to ensure convenient 
access to free testing, 10,000 pharmacies will be added to the Department of Health and 
Human Services free testing program. 
In response to rising demands for testing, U.S. manufacturers have increased 
production of COVID-19 test kit, reagents, and supplies. Advanced Medical Technology 

Association (AdvaMed), a trade group for testing manufacturers, reported that its 
members are ramping up production of rapid point-of-care test supplies to meet demand 
and that laboratory-based testing capacity for test confirmation is strong. AdvaMed has 
created a national COVID-19 Diagnostic Supply Registry of COVID-19 test 
manufacturers that support state and federal governments in their pandemic responses. 
Registry participants are thirteen leading diagnostic manufacturers whose tests together 
comprise approximately 75-80% of the COVID-19 in vitro diagnostic devices (IVD) on 
the market in the U.S. While these manufacturers produce a majority of molecular 
COVID-19 tests, they do not produce a majority of the total COVID-19 tests 
manufactured. These COVID-19 test manufacturers collectively shipped approximately 
3.8 million tests in July 2021, 8.2 million tests in August 2021, and 9.4 million molecular 
tests for the week ending September 4th, 2021 (AdvaMed, September 10, 2021). While 
these figures are not representative of the total weekly testing capacity in the U.S., this 
data demonstrates that testing capacity has grown significantly over the past few months 
and reflects the success manufacturers have had in ramping up production of tests. 
While current test availability is sufficient to meet the increased testing demands 
due to the ETS, OSHA is also confident that the RADx-TECH/ATP initiatives will 
continue to spur testing capacity and growth. The RADx-TECH/ATP initiatives have 
focused on moving test makers’ products through the late stage pipeline and securing 
FDA authorization for entry into the market. So far, there have been 27 such 
authorizations. As of September 2021, there were 824 eligible late-stage scale up 
proposals from various test makers up for review for NIH/BARDA funding. Furthermore, 
517 of these submissions are for the authorization and production of multiple types of 
COVID-19 tests including one or more of the following: blood, sputum, nasal swab, oral 
swab, fecal, saliva, or other types. OSHA considers this to be further support for its 

determination that testing capacity will continue to grow and that increased COVID-19 
testing supplies are on the horizon (NIBIB, September 28, 2021).
Based on data from the Johns Hopkins Coronavirus Resource Center, which 
examined publicly-available data from multiple sources, approximately 12.4 million tests 
were conducted during the week of August 26-September 2, 2021. As noted earlier, in the 
economic analysis of this ETS, OSHA projects testing rates to increase by approximately 
7.2 million tests per week starting 60 days after publication of the ETS. As described 
above, many employers are currently testing their workforce. This 7.2 million is almost 
certainly an overestimate because it does not exclude employees who are already required 
to be tested by their employers and would continue to be tested at the same frequency 
after the ETS. The data reviewed by OSHA on the RADx-TECH/ATP Dashboard shows 
that the manufacturers supported by the initiative are producing approximately 30 million 
tests per week, and capacity continues to grow. As explained above, it is expected that 
roughly 50 million at-home COVID-19 tests will be available each week by December 
2021. OSHA therefore finds that there are (and will continue to be) sufficient COVID-19 
tests available to meet the anticipated demand related to compliance with paragraph (g) 
by the 60-day delayed compliance date.
d. Availability of COVID-19 Test Supplies.
OSHA has also analyzed the availability of COVID-19 test supplies for use by 
COVID-19 test kit manufacturers, diagnostic laboratories, and determined that there are 
sufficient supplies to allow compliance with the ETS testing option. The COVID-19 
pandemic and recent Delta Variant surge have caused some disruptions in the availability 
of testing supplies such as swabs, viral transport medium, RNA extraction kits, serology 
consumables, diagnostic reagents, plastic consumables, and diagnostic instruments. The 
COVID-19 testing supply market is driven by the need to rapidly screen large segments 

of the population and deliver test results. The data presented throughout this assessment 
has shown demand for laboratory COVID-19 tests is rising across the country. 
Testing for COVID-19 involves many different components that are 
manufactured, transported, and used independently (e.g., bulk solvents, extracting 
reagents, packaging) or semi-independently (e.g., test kits). Most of the supplies used in 
COVID-19 testing are disposable, requiring a constant sustained capacity for new 
supplies. Some distribution channels move supplies directly to medical and laboratory 
end-users and others move supplies through distributors. In either case, the combination 
of increased testing demand and the established supply chains indicate that testing kits 
will be available in sufficient quantities throughout the country, including in rural areas 
where large employers may be located.
There have been substantial investments from federal and state programs and 
private industry to stimulate the production and distribution of testing supplies to bolster 
testing capacity across the country. Many products, such as swabs and reagents for RNA 
extraction kits, exhibited rising demand and, at some point during the pandemic, were 
subject to shortages that threatened continued testing capacity. For example, there was 
only one domestic manufacturer of medical grade flocked swabs, Puritan Medical 
Products Company of Guilford, Maine, and the company’s pre-pandemic capacity was 
insufficient to meet demand of increased testing in the early period of the COVID-19 
pandemic (Puritan Products, April 20, 2020). On July 29, 2020, the Department of 
Defense (DOD), in coordination with the Department of Health and Human Services, 
awarded $51.15 million to Puritan to expand industrial production capacity of flock tip 
testing swabs (DOD, July 31, 2020). On March 26, 2021, Puritan was awarded another 
$146.77 million to increase the company’s total production capacity to 250 million foam 
tip swabs per month at its Tennessee facility by February 2022 (DOD, March 29, 2021). 

Other private sector companies were mobilized to change the products they 
manufactured to accelerate production of COVID-19 test components, such as swabs, 
reagents, and solvents for RNA extraction kits. For example, Microbrush, a U.S.-based 
manufacturer of sterile applicators for the dental industry, began production of a 
nasopharyngeal test swab to meet the growing demand for COVID-19 testing 
requirements in July 2020. The Microbrush test swabs are sterilized and individually 
packaged in a medical-grade pouch intended for nasopharyngeal sample collection such 
as in dental procedures and also COVID-19 testing (Microbrush, July 1, 2020).
RNA extraction kits are used by the majority of NAAT protocols. These kits are 
sets of consumable plastic laboratory materials (small centrifuge tubes, filters, and 
collection vials) and chemical reagents (solutions for breaking the virus apart and 
purification) assembled by a manufacturer. Each kit has enough materials to process 
several dozen samples. The use of RNA extraction kits is not exclusive to COVID-19 
testing, meaning that a market existed pre-COVID-19, and manufacturers were able to 
adapt to fluctuations in demand spurred by the pandemic.
There are multiple companies with facilities in the United States that produce 
RNA extraction kits for the domestic market that have been awarded federal grants to 
increase the supply of COVID-19 test kits and reagent supplies. For example, in 
December 2020, the DOD and HHS identified several key reagents with the potential for 
supply chain bottlenecks and awarded a $4.8 million Indefinite Delivery/Indefinite 
Quantity contract to Anatrace Products, LLC to support increased production of key 
reagents for sample processing; Polyadenylic Acid (Poly A), Guanidinium Thiocyanate 
(GTC), and Proteinase K (Pro K) to process samples (DOD, December 21, 2020). 
Additionally, QIAGEN (based in Germany with U.S. manufacturing in Germantown, 
Maryland) produces extraction kits for authorized COVID-19 tests and has responded to 
the pandemic by scaling their production to around the clock production to strengthen 

testing kit capacity (Qiagen, October 2, 2021). On August 23, 2021, DOD, on behalf of 
and in coordination with HHS, awarded a $600,000 contract to QIAGEN to expand 
manufacturing capacity of enzymatic reagents and reagent kits used in COVID-19 
molecular diagnostic tests, thereby allowing QIAGEN to increase its monthly production 
of reagent kits by 7,000 and enzymes by 5,100 milligrams by the end of February 2022 to 
support domestic laboratory testing for COVID-19 (DOD, August 23, 2021). 
Additionally, manufacturers of raw materials and solvents for COVID-19 test kits 
have implemented strategies to strengthen their portions of the COVID-19 test supply 
chain. Millipore Sigma, a large producer of solvents and raw materials for tests, has 
created a global task force to actively evaluate the overall supply chain of products and 
key raw material suppliers to mitigate any potential disruption of COVID-19 testing 
capacity (Millipore Sigma, October 2021). In light of the foregoing, OSHA believes that 
there is sufficient – and increasing – availability of COVID-19 testing supplies to enable 
compliance with the ETS testing option. 
e. Sufficiency of Laboratory Capacity.
As noted above, a wide range of tests are acceptable under the ETS, including 
those that can be observed by employers without laboratory processing. Moreover, there 
has been rapid growth in the availability of OTC tests that do not require laboratory 
processing. Authorized OTC tests self-administered by employees and proctored by the 
employer do not require a CLIA certificate of waiver.  
The Association of Public Health Laboratories (APHL) has conducted weekly 
surveys of its membership to monitor their current and projected capability and capacity 
to test for COVID-19. Data from this survey is used to inform HHS, FEMA, CDC, and 
other federal partners to support public health laboratory supply and reagent needs. 
OSHA reviewed the weekly COVID-19 survey results through the APHL COVID-19 
Lab Testing Capacity and Capability Data Dashboard. The data comes from voluntary 

participation in the weekly surveys collected from approximately 100 state, local and 
territorial public health laboratories (PHLs) and reported to the CDC. The APHL weekly 
survey data supports OSHA’s feasibility determination and demonstrates that COVID-19 
testing demand will be met. For example, from August 15, 2021 to September 12, 2021, 
the APHL weekly survey data found that 96-100% of PHLs are meeting their current 
testing demand since the Delta Variant surge began (APHL, September 27, 2021). 
Laboratory capacity for processing and confirmation of at-home COVID-19 rapid 
tests provided by manufacturer retailers such as Walmart has also increased. Laboratory 
and diagnostic service providers have implemented parallel strategies to strengthen 
laboratory capacity for confirmation of at-home COVID-19 rapid tests available on the 
market for employers and employees to utilize. For example, Quest Diagnostics, which is 
the laboratory processing the samples and delivering results to those tested at Walmart’s 
drive-through and curbside testing sites, has scaled up laboratory testing capacity and 
rapid antigen test inventory should demand increase (Walmart, July 9, 2021). Quest 
Diagnostics has added COVID-19 testing platforms in laboratories in regions where 
demand is comparatively high and has implemented an online consumer-initiated test 
service for individuals and small businesses to request COVID-19 testing. In August 
2021, Quest Diagnostics began to offer clinician-guided rapid COVID-19 antigen testing 
to employers through a guided telehealth visit using a self-administered, nasal swab 
antigen test that provides results in 15 minutes that is then shipped to a Quest Diagnostics 
lab for confirmation (Quest Diagnostics, September 28, 2021). 
Based on the evidence reviewed, OSHA has determined that there is adequate 
laboratory capacity to enable compliance with the ETS testing option.
f. Access to Testing in Underserved Communities.
Individuals in underserved communities (including Black, Latino, and Indigenous 
and Native American persons, Asian Americans and Pacific Islanders and other persons 

of color; members of religious minorities; lesbian, gay, bisexual, transgender, and queer 
persons; persons with disabilities; persons who live in rural areas; and persons otherwise 
adversely affected by persistent poverty or inequality) are disproportionately burdened by 
the COVID-19 pandemic as many individuals in these communities are essential workers 
who cannot work from home, increasing their risk of being exposed to the virus. Access 
to COVID-19 testing in these communities has been identified as contributing factor to 
COVID-19 related health disparities in these communities. For example, the NSC June 
2021 survey found that the most common barrier to testing for rural employers and 
workers is access to vaccination and testing sites (NSC, September 2021). 
Several federal efforts have recently been implemented to strengthen testing 
capabilities in underserved communities. The NIH has invested heavily to improve 
COVID-19 testing in underserved communities throughout the COVID-19 pandemic. On 
September 30, 2020, the NIH received nearly $234 million to improve COVID-19 testing 
for underserved and vulnerable populations that have been disproportionately affected by 
this pandemic and launched the RADx Underserved Populations (RADx-UP) program 
(NIH, September 30, 2020).
The RADx-UP program has primary components supported by these NIH grants 
to increase availability, accessibility, and acceptance of testing among underserved and 
vulnerable populations. The RADx-UP program also provides overarching support and 
guidance on administrative operations and logistics, facilitating effective use of COVID-
19 testing technologies, supporting community and health system engagement, and 
providing overall infrastructure for data collection, integration, and sharing from a 
coordination and data collection center (NIH, September 30, 2021). Through the RADx-
UP program, the NIH has continued to support the needs of underserved populations and 
is currently funding 70 community-based projects across the country (NIH, September 
30, 2021). 

The CDC has also focused its efforts to improve COVID-19 testing in 
underserved communities throughout the COVID-19 pandemic. For example, on 
September 20, 2021, Maine Health, the largest health care organization in Maine and also 
serving northern New Hampshire, was awarded nearly $1 million for COVID-19 testing 
in higher risk communities (Maine Health, September 20, 2021). In March 2021, the 
CDC implemented a plan to invest $2.25 billion over two years to address COVID-19 
related health disparities and advance health equity among populations that are at high-
risk and underserved, including racial and ethnic minority groups and people living in 
rural areas. Since that time, the CDC has awarded grants to public health departments to 
improve testing capabilities; improve data collection and reporting; and build, leverage, 
and expand infrastructure support for testing (CDC, March 17, 2021). On September 30, 
2021, the CDC awarded an $8.1 million grant to the Arizona Center for Rural Health 
(ACRH) to address COVID-19 disparities across Arizona by improving the delivery of 
COVID-19 testing to rural and underserved communities (ASU CRH, September 30, 
2021). A number of other federal and state government agencies have been expanding 
support for COVID-19 testing in underserved communities as well. On June 11, 2021, 
HHS through the Health Resources and Services Administration (HRSA) provided 
$424.7 million in American Rescue Plan funding to over 4,200 Rural Health Clinics 
(RHCs) for COVID-19 testing (HHS, June 11, 2021) 
Private industry has also mobilized considerably to increase access and testing 
capacity in rural and other underserved communities. The NSC June 2021 survey found 
that a common barrier to employers and employees in rural and other underserved 
communities is transportation and access to vaccination and testing sites (NSC, 
September 2021). In its final report, the NSC recommended employers in these 
communities host on-site vaccinations to increase worker access. Applications for mobile 

vaccination are available on most local and state health department websites (NSC, 
September 2021;ASU WEF, September 2021).
CVS has collaborated with several organizations, including the National Medical 
Association, to increase access to testing in underserved communities and has developed 
mobile solutions that allow health care professionals to bring testing capabilities to 
businesses in these communities as they re-open (CVS Health, September 2021). 
Walgreens has implemented efforts to increase access in underserved communities such 
as rural and/or lower socioeconomic communities as well, with now more than half of 
Walgreens testing sites currently located in areas the CDC has identified as socially 
vulnerable and underserved (Walgreens, October 2021). Because of these investments, 
OSHA concludes that employers and their employees in underserved communities, 
including those in rural areas, will have sufficient access to COVID-19 tests and will be 
able to comply with the ETS’s testing requirements for employees who are not fully 
vaccinated. 
V. Management of confidential medical records, including employee COVID-19 
vaccination and testing records.
The ETS requires employers to maintain a record of each employee’s vaccination 
status. Employers must also maintain a record of each test result provided by each 
employee. These records must be maintained as confidential medical records and must 
not be disclosed except as required or authorized by this ETS or other federal law. The 
records are not subject to the retention requirements of 29 CFR 1910.1020(d)(1)(i) but 
must be maintained and preserved while the ETS is in effect.
Other OSHA rules have a similar requirement to maintain employee medical 
records, which could include vaccination records. See, e.g., Bloodborne Pathogens (29 
CFR 1910.1030), Respiratory Protection (29 CFR 1910.134), Respirable Crystalline 
Silica (29 CFR 1910.1053), Beryllium (29 CFR 1910.1024), Lead (29 CFR 1910.1025), 

and OSHA’s requirements for employee access to medical and exposure records (29 CFR 
1910.1020). OSHA is not aware of any potential technological feasibility issues related to 
recordkeeping. 
The requirement under this ETS to maintain records of employees’ COVID-19 
vaccination status and COVID-19 test results is similar to requirements in the 
aforementioned OSHA standards, and OSHA therefore concludes that compliance is 
feasible. Employers subject to the ETS will be able to comply with the provisions in the 
ETS using straightforward recordkeeping systems that are already widely used by large 
employers as part of their usual and customary business practices. OSHA concludes that 
it is feasible for such employers to comply with the requirements in the ETS for 
maintaining records related to COVID-19 vaccination status and COVID-19 test results.       
VI. Other Provisions.  
There are no technological feasibility barriers related to compliance with other 
requirements in the ETS (e.g., face coverings, employee notification). As explained 
above, many of the employer plans and best practice documents reviewed by OSHA 
indicate that employers have implemented the measures in these provisions across 
industry sectors. OSHA highlights two of the ETS’s other requirements below, which are 
explored in more depth in other sections of this preamble. 

Face Coverings. Paragraph (i) of the ETS requires the employer to ensure that all 
employees who are not fully vaccinated wear a face covering when indoors and 
when occupying a vehicle with another person for work purposes, except: (i) 
when an employee is alone in a room with floor to ceiling walls and a closed 
door; (ii) for a limited time while the employee is eating or drinking at the 
workplace or for identification purposes in compliance with safety and security 
requirements; (iii) when employees are wearing respirators or face masks; or (iv) 
where the employer can show that the use of face coverings is infeasible or 

creates a greater hazard. The definition of face covering allows various different 
types of masks, including clear face coverings or cloth face coverings with a clear 
plastic panel which may be used to facilitate communication with people who are 
deaf or hard-of-hearing or others who need to see a speaker’s mouth or facial 
expressions to understand speech or sign language respectively. The types of face 
coverings permitted under this ETS are widely used and readily available. The 
results of the ASU WEF June 2021 survey found that 30% of employers required 
face coverings for unvaccinated employees, which demonstrates that this 
provision of the ETS is currently being implemented by a substantial number of 
employers and is “capable of being done.” (ASU WEF, September 2021). OSHA 
identifies no technological feasibility issues with this provision of the ETS.

Notification. Paragraph (h) of the ETS contains COVID-19 notification 
requirements for both the employer and the employee. Under this provision, the 
employer must require each employee to promptly notify the employer if they 
receive a positive COVID-19 test or are diagnosed with COVID-19 by a licensed 
healthcare provider and must immediately remove any employee from the 
workplace who receives a positive COVID-19 test or is diagnosed with COVID-
19 by a licensed healthcare provider. OSHA identifies no technological feasibility 
issues in connection with the ETS’s notification requirements. It is the employer’s 
responsibility to ensure that appropriate instructions and procedures are in place 
so that designated representatives of the employer (e.g., managers, supervisors) 
and employees conform to the rule’s requirements.
VII. Conclusion. 
OSHA has determined that complying with this ETS is technologically feasible 
for typical firms covered by this standard, at least most of the time (see Public 
Citizen v. OSHA, 557 F.3d 165 (3d Cir. 2009); Lead I, 647 F.2d at 1272; Lead II, 939 

F.2d at 990).  OSHA reviewed extensive evidence across industries and did not identify 
any industry-specific compliance barriers. Evidence in the record that shows that the 
written workplace COVID-19 vaccination policy requiring each employee to be fully 
vaccinated against COVID-19 unless they establish and implement a written policy that 
permits an employee to choose to be tested for COVID-19 at least every seven days and 
wear a face covering is feasible. In fact, such policies have already been implemented by 
hundreds of large companies across industry sectors. OSHA has also determined that 
there are sufficient COVID-19 tests available and adequate laboratory capacity to meet 
the anticipated increased testing demand related to compliance with the ETS testing 
option. 
Additionally, the ETS’s requirements to determine employee vaccination status, 
support employee vaccination by providing time off for vaccination and time off for 
recovery, and maintain records of employee COVID-19 vaccination status and COVID-
19 test results are also technologically feasible. As discussed above, that many employers 
and organizations have already implemented such requirements demonstrates that they 
are “capable of being done.” Moreover, the recordkeeping requirements in this ETS 
largely mirror the requirements for the collection and maintenance of similar employee 
medical records in OSHA’s Bloodborne Pathogens standard (29 CFR 1910.1030) and the 
Respiratory Protection standard (29 CFR 1910.134). The ETS provides a flexible 
compliance option for employers to tailor their procedures and practices to the needs of 
their workplace. OSHA finds that employers in typical firms in all industry sectors can 
comply with the requirements of the ETS, and compliance with the ETS is therefore 
technologically feasible.
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Antigen Diagnostic Tests for SARS-CoV-2. https://www.fda.gov/medical-
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2021a)

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2021) 
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2021) 
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Microbrush. (2020, July 1). Microbrush Introduces New Nasopharyngeal Test Swabs. 
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Characterization, Vaccine and Therapy Production. 
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National Academy for State Health Policy (NASHP). (2021, October 1). State Efforts to 
Ban or Enforce COVID-19 Vaccine Mandates and Passports. 
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mandates/. (NASHP, October 1, 2021)
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Bioengineering (NIBIB). (2021, September 28). RADx Tech/ATP Dashboard. 
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September 28, 2021) 
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new COVID-19 testing technologies. https://www.nih.gov/news-events/news-
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COVID-19 testing for underserved communities. https://www.nih.gov/news-events/news-
releases/nih-assess-expand-covid-19-testing-underserved-communities. (NIH, September 
30, 2020) 
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mobilizes-national-innovation-initiative-covid-19-diagnostics. (NIH, April 29, 2020)
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(Puritan Products, April 20, 2020)
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Quest Diagnostics. (2021, September 28). Quest Diagnostics Media Statement about 
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Corp., July 31, 2020)
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Sanford Health. (2021, July 22). Sanford Health to require COVID-19 vaccine for 
employees. https://news.sanfordhealth.org/news-release/sanford-to-require-covid-19-
vaccine-for-employees/. (Sanford Health, July 22, 2021)
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2021)
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ADHS-CDC COVID Disparities Initiative. https://crh.arizona.edu/programs/covid-
disparities-initiative. (ASU CRH, September 30, 2021)
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Contract to Puritan Medical Products to Increase Domestic Production Capacity of Foam 
Tip Swabs. https://www.defense.gov/News/Releases/Release/Article/2554073/dod-
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March 29, 2021)
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Undefinitized Contract Action to Puritan Medical Products Company LLC to Increase 
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million-undefinitized-contract-action-to-puritan-medical-produc/. (DOD, July 31, 2021)
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Contract to QIAGEN to Increase Domestic Production Capacity of COVID-19 
Diagnostic Test Kits and Reagents. 
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million-contract-to-qiagen-to-increase-domestic-production-capaci/. (DOD, August 23, 
2021)
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Indefinite Delivery/Indefinite Quantity to a Calibre Scientific Subsidiary, Anatrace, to 

Increase Domestic Production Capacity of COVID-19 Testing Reagents. 
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2020)
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$424.7 Million to Rural Health Clinics for COVID-19 Testing and Mitigation in Rural 
Communities. https://www.hhs.gov/about/news/2021/06/11/hhs-provides-424-million-to-
rural-health-clinics-for-covid-19-testing.html . (HHS, June 11, 2021)
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based testing sites. https://www.hhs.gov/coronavirus/community-based-testing-
sites/index.html. (HHS, August 17, 2021)
Walgreens. (2021, October). Free Drive-Thru COVID-19 Testing for Ages 3+. 
https://www.walgreens.com/findcare/covid19/testing?ban=covid_hp_cause2. 
(Walgreens, October 2021) 
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stories/covid-19-stories/covid-19-faq.htm#testinghome. (Walgreens, October 8, 2021)
Walmart. (2021, July 9). Supporting COVID-19 Testing. 
https://corporate.walmart.com/covid19testing. (Walmart, July 9, 2021)
Washington Post. (2021, October 6). White House announces $1 billion purchase of 
rapid, at-home coronavirus tests. 
https://www.washingtonpost.com/health/2021/10/06/biden-rapid-at-home-covid-tests/. 
(Washington Post, October 6, 2021)
Willis Towers Watson. (2021, June 23)  COVID-19 Vaccination and Reopening the 
Workplace Survey press release. https://www.willistowerswatson.com/en-
US/News/2021/09/workplace-vaccine-mandates-expected-to-accelerate-wtw-survey-
finds. (Willis Towers Watson, June 23, 2021) 
Willis Towers Watson. (2021, September 1) Workplace vaccine mandates expected to 
accelerate, Willis Towers Watson survey finds. https://www.willistowerswatson.com/en-
US/News/2021/09/workplace-vaccine-mandates-expected-to-accelerate-wtw-survey-
finds. (Willis Towers Watson, September 1, 2021)
B. Economic Analysis
I. Introduction.
This section presents OSHA’s estimates of the costs and impacts, anticipated to 
result from the COVID-19 Vaccination and Testing ETS, 29 CFR 1910.501. The purpose 
of this ETS is to address the grave danger of COVID-19 in the workplace by promoting 
vaccination, while allowing an alternative for face covering and testing requirements, and 
also to remove COVID-19 positive workers from the workplace regardless of vaccination 

status. The estimated costs are based on employers achieving full compliance with the 
requirements of the ETS. They do not include prior costs associated with firms whose 
current practices are already in compliance with the ETS requirements. The purpose of 
this analysis is to:

Identify the entities/establishments and industries affected by the ETS;

Estimate and evaluate the costs and economic impacts that regulated 
entities/establishments will incur to achieve compliance with the ETS; and

Evaluate the economic feasibility of the rule for affected industries. 
In this analysis, OSHA is fulfilling the requirement under the OSH Act to show 
the economic feasibility of this ETS. This analysis is different from the cost portion of a 
regulatory impact analysis prepared in accordance with Executive Order 12866 in that the 
agency is focused only on costs to employers when evaluating economic feasibility.  In a 
regulatory impact analysis, the costs to all parties (e.g., employers, employees, and 
governments) are included. While this is not the case for an economic feasibility analysis, 
it does not necessarily mean that the ETS imposes no costs or burdens on parties other 
than employers. For example, the rule imposes certain costs on employees who choose 
not to become vaccinated (e.g., for face coverings and testing.  While these costs are not 
relevant for the purpose of establishing economic feasibility, these costs would be 
attributable to the ETS in a regulatory impact analysis.  In addition, these costs are not 
mandatory because any employee who does not wish to pay them may choose to become 
vaccinated or leave employment (see discussion below on turnover), after which the costs 
would not be incurred. Some employees may also be entitled to a reasonable 
accommodation that may avoid additional cost (e.g., telework). 
“[T]he Supreme Court has conclusively ruled that economic feasibility [under the 
OSH Act] does not involve a cost-benefit analysis.” Pub. Citizen Health Research Grp. v. 
U.S. Dept. of Labor, 557 F.3d 165, 177 (3d Cir. 2009); see also Asbestos Info. Ass’n, 727 

F.2d at 424 n.18 (noting that formal cost benefit is not required for an ETS, and indeed 
may be impossible in an emergency). The OSH Act “place[s] the ‘benefit’ of worker 
health above all other considerations save those making attainment of this ‘benefit’ 
unachievable.” Cotton Dust, 452 U.S. at 509. Therefore, “[a]ny standard based on a 
balancing of costs and benefits by the Secretary that strikes a different balance than that 
struck by Congress would be inconsistent with the command set forth in” the statute. Id. 
While this case law arose with respect to health standards issued under section 6(b)(5) of 
the Act, which specifically require feasibility, OSHA finds the same concerns applicable 
to emergency temporary standards issued under section 6(c) of the Act. An ETS “serve[s] 
as a proposed rule” for a section 6(b)(5) standard, and therefore the same limits on any 
requirement for cost-benefit analysis should apply. Indeed, OSHA has also rejected the 
use of formal cost benefit analysis for safety standards, which are not governed by 
section 6(b)(5). See 58 FR 16,612, 16,622-23 (Mar. 30, 1993) (“in OSHA’s judgment, its 
statutory mandate to achieve safe and healthful workplaces for the nation’s employees 
limits the role monetization of benefits and analysis of extra-workplace effects can play 
in setting safety standards.”).22 A standard must be economically feasible in order to be 
“reasonably necessary and appropriate” under section 3(8) and, by inference, “necessary” 
under section 6(c)(1)(B) of the OSH Act. Cf. Am. Textile Mfrs. Inst., Inc. v. Donovan, 
452 U.S. 490, 513 n.31 (1981) (noting “any standard that was not economically . . . 
feasible would a fortiori not be ‘reasonably necessary or appropriate’” as required by the 
OSH Act’s definition of “occupational safety and health standard” in section 3(8)); see 
also Florida Peach Growers, 489 F.2d at 130 (recognizing that the promulgation of any 
standard, including an ETS, must account for its economic effect). A standard is 
22 To support its Asbestos ETS, OSHA conducted an economic feasibility analysis on these terms. 48 FR 
51086, 51136-38 (Nov. 4, 1983). In upholding that analysis, the Fifth Circuit said that OSHA was required 
to show that the balance of costs to benefits was not unreasonable. Asbestos Info. Ass’n, 727 F.2d at 423. 
As explained above, OSHA does not believe that is a correct statement of the economic feasibility test. 
However, even under that approach this ETS easily passes muster.

economically feasible when industries can absorb or pass on the costs of compliance 
without threatening industry’s long-term profitability or competitive structure, Cotton 
Dust, 452 U.S. at 530 n.55, or “threaten[ing] massive dislocation to, or imperil[ing] the 
existence of, the industry.” United Steelworkers of Am. v. Marshall, 647 F.2d 1189, 1272 
(D.C. Cir. 1981) (Lead I). Given that section 6(c) is aimed at enabling OSHA to protect 
workers in emergency situations, the agency is not required to make the showing with the 
same rigor as in ordinary section 6(b) rulemaking. Asbestos Info. Ass’n/N. Am. v. OSHA, 
727 F.2d 415, 424 n.18 (5th Cir. 1984). In Asbestos Information Association, the Fifth 
Circuit concluded that the costs of compliance were not unreasonable to address a grave 
danger where the costs of the ETS did not exceed 7.2% of revenues in any affected 
industry. Id. at 424.
The scope of judicial review of OSHA’s determinations regarding feasibility 
(both technological and economic) “is narrowly circumscribed.” N. Am.’s Bldg. Trades 
Unions v. OSHA, 878 F.3d 271, 296 (D.C. Cir. 2017) (Silica). “OSHA is not required to 
prove economic feasibility with certainty, but is required to use the best available 
evidence and to support its conclusions with substantial evidence.” Amer. Iron & Steel 
Inst. v. OSHA, 939 F.2d 975, 980-81 (D.C. Cir. 1991) (Lead II); 29 U.S.C. 655(b)(5), (f). 
“Courts, [moreover], ‘cannot expect hard and precise estimates of costs.’” Silica, 878 
F.3d at 296 (quoting Lead II, 939 F.2d at 1006). Rather, OSHA’s estimates must 
represent “a reasonable assessment of the likely range of costs of its standard, and the 
likely effects of those costs on the industry.” Lead I, 647 F.2d at 1266. The “mere 
‘possibility of drawing two inconsistent conclusions from the evidence,’ or deriving two 
divergent cost models from the data ‘does not prevent [the] agency’s finding from being 
supported by substantial evidence.’” Silica, 878 F.3d at 296 (quoting Cotton Dust, 452 
U.S. at 523). 

Executive Orders 12866 and 13563 direct agencies to assess the costs and benefits 
of the intended regulation and, if regulation is necessary, to select regulatory approaches 
that maximize net benefits (including potential economic, environmental, and public 
health and safety effects; distributive impacts; and equity). Executive Order 13563 
emphasized the importance of quantifying both costs and benefits, of reducing costs, of 
harmonizing rules, and of promoting flexibility. Because of the continued impact of the 
pandemic on occupational safety and health, OSHA has prepared this ETS and the 
accompanying economic analysis on an extremely condensed timeline. Thus, in light of 
the Secretary’s conclusion that the COVID-19 pandemic constitutes an emergency 
situation, the Secretary has notified OIRA that it is necessary for OSHA to promulgate 
this regulation more quickly than normal review procedures allow, pursuant to EO 12866 
Sec. 6 (a)(3)(D). OIRA has waived compliance with Sec. 6(a)(3)(B) and (C) for this 
economically significant rule.  
II. COVID-19 ETS Industry Profile.
a. Introduction.
In this section, OSHA provides estimates of the number of affected entities, 
establishments, and employees for the industries that have settings covered by this ETS. 
The term “entity” describes a legal for-profit business, a non-profit organization, or a 
local governmental unit, whereas the term “establishment” describes a particular physical 
site of economic activity. Some entities own and operate more than one establishment.
Throughout this analysis, where estimates were derived from available data those 
sources have been noted in the text. Estimates without sources noted in the text are based 
on agency expertise. 
b. Scope of the COVID-19 ETS.
This ETS applies to all employers with a total of 100 or more employees at any 
time this ETS is in effect. However, the requirements of this ETS do not apply to: (1) 

workplaces covered under the Safer Federal Workforce Task Force COVID-19 
Workplace Safety: Guidance for Federal Contractors and Subcontractors (Contractor 
Guidance); or (2) settings where any employee provides healthcare services or healthcare 
support services when subject to the requirements of 29 CFR 1910.502 (i.e., the 
Healthcare ETS). Furthermore, the requirements of this ETS do not apply to the 
employees of covered employers: (1) who do not report to a workplace where other 
individuals, such as coworkers or customers, are present; or (2) while working from 
home; or (3) who work exclusively outdoors. Based on this scope, employers in nearly 
every sector are expected to be covered by this ETS.  
OSHA’s assumptions may result in an overestimate of the number of employees 
affected by the ETS. First, OSHA is not estimating the number and type of workplaces 
covered by the Safer Federal Workforce Task Force COVID-19 Workplace Safety: 
Guidance for Federal Contractors and Subcontractors or removing them from the profile 
of employers affected by this ETS. OSHA assumes for the purpose of this analysis that 
employers covered under the Contractor Guidance will also have contracts to perform 
work in workplaces where they are not covered under that Guidance (i.e., where the 
employer contracts with an entity other than the federal government), and so those 
employers are included in the scope here. 
Second, OSHA estimates that all employers in all private sector industries are 
affected by this ETS to some extent. Although this ETS imposes no compliance burden 
on employers whose employees work remotely 100 percent of the time, in OSHA’s 
analysis, no employers with 100 or more employees have all of their employees working 
remotely 100 percent of the time (i.e., at least some employees in each affected firm do 
not work remotely). Moreover, OSHA’s analysis does not take into account that some 
employees may engage in part-time telework (i.e., it assumes that employees either work 
remotely full-time or do not work remotely at all). Finally, OSHA’s analysis does not 

fully take into account the exemption for employees who do not report to a workplace 
where other individuals are present, meaning that this analysis may overestimate the 
number of employees affected by the rule. 
As stated, the requirements of this ETS do not apply to the employees of covered 
employers who work exclusively outdoors.  To determine the percentage of employees in 
occupations for which the exception is relevant, the agency uses data from the BLS’s 
2020 Occupational Requirements Survey (ORS) (BLS, 2020). This survey looks at 
various aspects of job requirements. In particular, the survey lists occupations where 
workers are outdoors “constantly,” which OSHA interprets as being nearly continuously 
outdoors. Because the majority of workers who work outdoors “constantly” likely work 
indoors at least some of the time, the agency judges that no more than 10 percent of the 
workers who are primarily outdoors are actually there exclusively. See Table IV.B.1 for 
the occupations, the ORS percentages, and final percentages for workers OSHA estimates 
are exempt from the scope of this ETS based on the outdoor work exemption. 

Table IV.B.1-Occupations with workers who work outdoors
SOC 
Code
Occupation
Percent 
outdoors 
constantly
Percent 
outdoors 
exclusively
373011
Landscaping and Groundskeeping Workers
90%
9%
472061
Construction Laborers
79%
8%
474051
Highway Maintenance Workers
48%
5%
339092
Lifeguards, Ski Patrol, and Other Recreational Protective 
Service
45%
5%
470000
Construction and Extraction Occupations
42%
4%
471011
First-Line Supervisors of Construction Trades and Extraction
39%
4%
472073
Operating Engineers and Other Construction Equipment 
Operators
36%
4%
370000
Building and Grounds Cleaning and Maintenance Occupations
26%
3%
272022
Coaches and Scouts
14%
1%
530000
Transportation and Material Moving Occupations
8%
1%
390000
Personal Care and Service Occupations
5%
0.5%
270000
Arts, Design, Entertainment, Sports, and Media Occupations
2%
0.2%
Source: BLS Occupational Requirement Survey (BLS, 2020), OSHA calculations.

OSHA’s estimate of employees who work exclusively outdoors does not account 
for employers who only need to make slight adjustments to their current work practices to 
ensure that their employees qualify for the outdoor exemption, such as by holding tool 
box talks outdoors instead of in a traditional indoor location.  This may result in more 
employees falling within the exemption than estimated by OSHA; therefore, OSHA’s 
cost analysis likely overestimates costs.  
The requirements of the ETS also do not apply to settings where any employee 
provides healthcare services or healthcare support services when subject to the 
requirements of 29 CFR 1910.502 (the Healthcare ETS). The Healthcare ETS is a 
temporary standard that may not remain in effect for the entire period that 29 CFR 
1910.501 remains in effect. This means that some employers or employees covered by 
the Healthcare ETS, those in firms that have 100 or more employees, may ultimately be 
covered by 29 CFR 1910.501 (because the exception in 29 CFR 1910.501 is limited to 
when employers are subject to the requirements of the Healthcare ETS). This potentially 
impacts two types of costs:  employer-based costs (e.g., employer policy on vaccination) 
and employee-based (periodic) costs (e.g., recordkeeping).  
Employer-Based Costs:  For the purpose of the economic analysis only, OSHA 
treats the Healthcare ETS as though it will no longer be in effect after December, 2021, 
because at that point the Healthcare ETS will have been in effect for the six months that 
OSHA had calculated costs for that ETS.  Therefore, OSHA estimates that some 
employers including those with 100 or more employees subject to the 29 CFR 1910.502 
exemption, will need to take employer-based costs because all these employers will 
ultimately be subject to 29 CFR 1910.501 under this assumption.
Employee-Based Costs: OSHA’s estimates incorporate two assumptions for the 
purposes of this analysis only.  First, for the purposes of assumptions for this analysis 
only, § 1910.501 will remain in effect for 6 months.  Second, many employers and 

employees currently covered only by the Healthcare ETS will be subject to the 
requirements of 29 CFR 1910.501 for approximately 4 months (4 months of the 6 month 
estimated lifespan of 29 CFR 1910.501). OSHA’s estimate of those employees exempted 
by the Healthcare ETS was based on the Industry Profile of employees in firms with 100 
employees or more covered by the Healthcare ETS, as estimated in Table VI.B.3 in the 
economic analysis for that rulemaking (see 86 FR 32488).  
OSHA notes that some employees currently covered by the Healthcare ETS might 
also be currently covered by 29 CFR 1910.501 (albeit at different times or in different 
locations) because the Healthcare ETS is settings-based. For example, a pharmacist 
would normally not need to comply with the requirements of § 1910.502 when just filling 
prescriptions in a retail pharmacy store (see 29 CFR 1910.502(a)(2)(ii)), but would need 
to comply when administering vaccinations within an embedded clinic inside that retail 
pharmacy. Thus, there are a number of variables that could impact the extent to which the 
pharmacist’s employer might incur any costs.  However, even to the extent that such 
costs might occur (e.g., recordkeeping for testing if the pharmacist works for an employer 
covered by 29 CFR 1910.501 and is unvaccinated), OSHA judges that they would be de 
minimis for several reasons. First, this pool of workers is likely to be very small, 
especially when compared to the population of workers covered by the Healthcare ETS. 
Second, most employees subject to both standards will have been fully vaccinated before 
OSHA takes costs for these employees under 29 CFR 1910.501 by operation of the CMS 
rule mandating vaccination or as a result of the voluntary vaccination incentives 
promoted by OSHA’s Healthcare ETS (therefore negating most of the costs associated 
with vaccination and testing under 29 CFR 1910.501). Third, any underestimate of 
periodic costs will only apply during the first two months after 29 CFR 1910.501 goes 
into effect and the standard has a delayed compliance date of 30 days after the effective 
date for most provisions, except for testing, which has a delayed compliance date of 60 

days. This will further lessen the periodic costs associated with any potential 
underestimate.    
In all respects (other than the 4/6 share of employee-based costs), OSHA is taking 
the same approach in the Industry Profile and Cost Estimates for employers and 
employees currently covered by the Healthcare ETS as it does for all other industries.  
These employers and employees are fully integrated into Table IV.B.5, below, which 
contains a summary of covered entities and employees.  Moreover, the same assumptions 
on outdoor work and other scope exemptions that OSHA explains earlier holds for these 
employers and employees.  In addition, OSHA makes the same downward adjustment in 
telework for these employers and employees in accordance with the methodology it sets 
out below.  Thus, the Healthcare ETS profile used in this ETS to account for employees 
exempted by the Healthcare ETS into the Profile in the event the Healthcare ETS expires 
(i.e., in Table IV.B.5, below) is an updated version of Table VI.B.3 in the Healthcare 
ETS (see 86 FR 32488).23 OSHA notes that some firms may decide to proactively 
comply with certain 29 CFR 1910.501 requirements (such as mandating vaccination for 
all employees that were removed from the Industry Profile) before the end date of the 
Healthcare ETS based on the conclusion that 29 CFR 1910.501 will ultimately apply in 
full to them.  Since these costs still occur due to 29 CFR 1910.501, OSHA is 
appropriately including them in this cost analysis.  
There are 9.9 million employees who will newly be covered by 29 CFR 1910.501 
starting in December whose employers will incur an additional $318 million in costs.  
These costs are integrated into the agency’s main cost analysis, which is described later 
in this economic analysis.
23 The CMS rule published elsewhere in this issue of the Federal Register mandates vaccination for 
employees in facilities that receive Medicare or Medicaid.  OSHA is ignoring this for the purpose of its cost 
analysis and taking costs into account as if the CMS rule were not promulgated.  This creates a substantial 
overestimate.

Only some state- and local-government entities are included in this analysis. 
State- and local-government entities are specifically excluded from coverage under the 
OSH Act (29 U.S.C. 652(5)). Workers employed by these entities only have OSH Act 
protections if they work in states that have an OSHA-approved State Plan. (29 U.S.C. 
667). Consequently, this analysis excludes public entities in states that do not have 
OSHA-approved State Plans. Table IV.B.2 presents the states that have OSHA-approved 
State Plans and their public entities are included in the analysis. 

Table IV.B.2. States that Have OSHA-Approved State Plans 
Alaska
Maryland
South Carolina
Arizona
Michigan
Tennessee
California
Minnesota
Utah
Connecticut
Nevada
Vermont
Hawaii
New Jersey
Virginia
Illinois
New Mexico
Washington
Indiana
New York
Wyoming
Iowa
North Carolina
US Virgin Islands
Kentucky
Oregon
Maine
Puerto Rico
Source: OSHA, September 25, 2021
OSHA notes, finally, that the percentage of employers mandating vaccination, 
and hence the employee vaccination rate, would likely rise to some degree absent this 
ETS due to other federal actions, such as the vaccination mandate for federal contractors, 
the CMS rule published elsewhere in this issue of the Federal Register, and as a result of 
vaccination mandates that have been adopted at state and local levels.  This analysis does 
not account for increases in vaccination that would occur absent the standard, resulting in 
a likely overestimate of the costs. 
c. Teleworking.
Dingel-Neiman approach for estimating who can work remotely
OSHA uses the estimates in a paper by J. I. Dingel and B. Neiman, “How Many 
Jobs Can be Done at Home?,” published in July 2020, as a starting point to determine the 
percentage of employees, by occupation, who are not expected to work remotely (i.e., the 
percentage of workers for whom employers have employee-based costs under this ETS) 
(Dingel and Neiman, July 2020).
In Dingel and Neiman’s paper, the authors estimate the number of jobs in the U.S. 
economy that workers can feasibly perform remotely. The authors use two different 
surveys from the Occupational Information Network (O*Net)24 to evaluate which 
24 The O*Net Program is a major source of occupational information for the U.S. The O*NET database 
surveys ask both specific occupational experts and workers in those occupations questions covering 
multiple aspects of almost 1,000 occupations covering the entire U.S. economy. See 

occupations can be performed remotely and combine the O*Net estimates with the 
Bureau of Labor Statistics’ (BLS) Occupational Employment and Wage Statistics 
(OEWS) data on employment by occupation to estimate the total number of workers 
nationally who can work remotely.   
To evaluate the survey responses, Dingel and Neiman first determined the 
occupations for which the average response to a given prompt met a preset threshold. 
Table IV.B.3 presents the Dingel and Neiman response threshold for each survey 
question as well as the percent of occupations that meet each respective predetermined 
threshold. For example, in 10.8 percent of occupations, the average response to the 
“Performing general physical activities” (4.A.3.a.1) question met the threshold, falling in 
the range of 4 to 5. 
Dingel and Neiman determined that employees in a given occupation can 
telework full time if they did not meet the predetermined threshold for any of the 
questions highlighted in grey and denoted with a “Yes” in the column that reports 
whether that activity is used in determining whether a job can be done remotely in Table 
IV.B.3. 
https://www.onetonline.org/ for more information. The occupation definitions in the O*NET data are 
Standard Occupation Codes--the same definitions that are used in the BLS OEWS data. Dingel and Neiman 
use the responses to two surveys included in release 24.2 of the database administered by O*NET, the 
Worker Context Questionnaire and the Generalized Work Activities Questionnaire. The occupation with 
the median number of respondents had 26 respondents for each work context question and 25 respondents 
for each generalized work activities question per detailed-level SOC occupation code. 
In the O*Net Questionnaires, survey respondents responded to statements about the nature and 
requirements of the daily tasks associated with their job on a 1-5 ordinal scale, where 5 represents the 
strongest agreement and 1 represents the strongest disagreement (see Table IV.B.3). The O*Net data 
contain the average response to each question for each occupation code. For instance, for occupation “Chief 
Executives” (SOC 11-1011), the average response to the prompt “Performing General Physical Activities is 
very important” was 1.39, indicating that performing general physical activity is not, on average, critical to 
the work of chief executives. The average responses by occupation for other prompts in the relevant 
surveys utilized by Dingel and Neiman are contained in those surveys.

Table IV.B.3. O*Net Survey Questions and Response Thresholds
Question 
ID
Question description
Response 
threshold
Perc. of 
occupations 
that meet 
threshold 
Used to 
estimate 
ability to work 
remotely
Generalized Work Activities Survey
4.A.3.a.1
Performing General Physical Activities is very important
4 to 5
10.8%
Yes
4.A.3.a.2
Handling and Moving Objects is very important
4 to 5
12.7%
Yes
4.A.3.a.3
Controlling Machines and Processes [not computers nor vehicles] is very important
4 to 5
13.1%
Yes
4.A.3.a.4
Operating Vehicles, Mechanized Devices, or Equipment is very important 
4 to 5
9.2%
Yes
4.A.4.a.8
Performing for or Working Directly with the Public is very important
4 to 5
16.2%
Yes
4.A.3.b.4
Repairing and Maintaining Mechanical Equipment is very important 
4 to 5
4.0%
Yes
4.A.3.b.5
Repairing and Maintaining Electronic Equipment is very important
4 to 5
2.1%
Yes
4.A.1.b.2
Inspecting Equipment, Structures, or Materials is very important 
4 to 5
18.6%
Yes
Worker Context Survey
4.C.2.d.1.a
Average respondent says they are sitting almost continually
4.5 to 5
12.2%
No
4.C.2.d.1.b
Average respondent says they are standing almost continually
4.5 to 5
10.1%
No
4.C.2.d.1.g
Majority of time is spent using your hands to handle, control, or feel objects, tools, or controls
3.5 to 5
46.2%
No
4.C.2.a.1.c
Majority of respondents say outdoors every day
4.5 to 5
8.3%
Yes
4.C.1.a.2.h
Average respondent says they use email less than once per month
1 to 2
15.4%
Yes
4.C.1.a.2.f
Average respondent says they use telephone less than once per month
1 to 2
4.1%
No
4.C.2.d.1.c
Average respondent says they spent majority of time climbing ladders, scaffolds, or poles
3.5 to 5
1.2%
No
4.C.2.d.1.d
Average respondent says they spent majority of time walking or running
3.5 to 5
13.4%
Yes
4.C.2.d.1.e
Average respondent says they spent majority of time kneeling, crouching, stooping, or 
crawling
3.5 to 5
2.4%
No
4.C.2.d.1.f
Average respondent says they spent majority of time keeping or regaining their balance
3.5 to 5
0.3%
No
4.C.2.d.1.h
Average respondent says they spent majority of time bending or twisting their body
3.5 to 5
12.1%
No
4.C.2.d.1.i
Average respondent says they spent majority of time making repetitive motions
3.5 to 5
31.1%
No
4.C.2.e.1.d
Average respondent says they spent majority of time wearing common or specialized 
protective or safety equipment
3.5 to 5
43.1%
Yes
4.C.1.a.4
Average respondent says they spent majority of time in contact with others
3.5 to 5
94.3%
No
4.C.1.b.1.f
Average respondent says it is very important for them to deal with external customers
4 to 5
28.7%
No
4.C.1.b.1.g
Average respondent says it is very important for them to coordinate or lead others
4 to 5
21.2%
No
4.C.1.c.1
Average respondent says it is very important for them to be responsible for others' health and 
safety
4 to 5
21.4%
No
4.C.1.d.3
Average respondent says they deal with violent people at least once a week
4 to 5
0.4%
Yes
4.C.2.a.1.b
Average respondent says they work in an environment that is not environmentally controlled 
every day
4.5 to 5
1.5%
No
4.C.2.a.3
Average respondent says they are physically close (at least moderately close) to others
4 to 5
20.9%
No
4.C.2.b.1.b
Average respondent says extreme temperatures every day
4 to 5
9.1%
No
4.C.2.b.1.d
Average respondent says they are exposed to contaminants at least once a week
4 to 5
20.0%
No
4.C.2.b.1.e
Average respondent says they are exposed to cramped work space every day
4.5 to 5
0.1%
No
4.C.2.b.1.f
Average respondent says they are exposed to whole body vibration at least once a week
4 to 5
1.0%
No
4.C.2.c.1.a
Average respondent says they are exposed to radiation at least once a week
4 to 5
1.1%
No
4.C.2.c.1.b
Average respondent says they are exposed to diseases or infection at least once a week
4 to 5
9.0%
Yes
4.C.2.c.1.c
Average respondent says they are exposed to high places at least once a week
4 to 5
2.2%
No
4.C.2.c.1.d
Average respondent says they are exposed to hazardous conditions at least once a week
4 to 5
6.0%
No
4.C.2.c.1.e
Average respondent says they are exposed to hazardous equipment at least once a week
4 to 5
9.9%
No
4.C.2.c.1.f
Average respondent says they are exposed to minor burns, cuts, bites, or stings at least once 
a week
4 to 5
2.6%
Yes
Source: (Dingel and Neiman, July 2020) 


Adjusting Dingel and Neiman to Reflect Current Conditions
While many employees can and are working remotely, many have returned to 
their places of employment. This conclusion is borne out by BLS’s Current Population 
Survey (CPS) (BLS, 2021c). To address the tendency toward employees returning to 
work on site and more accurately reflect current remote work conditions, OSHA made 
two adjustments to Dingel and Neiman’s estimates. In the COVID-19 Healthcare ETS, 
OSHA also used Dingel and Neiman’s paper to estimate the number of workers who 
teleworked in response to the pandemic and the ETS under the assumption that anyone 
who could work remotely would do so in response to the pandemic and the Healthcare 
ETS. Dingel and Neiman’s estimates are therefore framed as the upper-bound of potential 
teleworking.
The adjustments OSHA made reflect changing circumstances. First, based on 
agency expertise, OSHA changed the status of certain occupations in its occupational list 
from working remotely to not working remotely. For example, when Dingel and Neiman 
published their study, many schools were operating virtually so the Dingel and Neiman 
finding that teachers were able to work remotely lined up with the situation where 
teachers were working remotely. At this point in the pandemic, on the other hand, in-
person learning has mostly recommenced. To this end, OSHA changed the status of 
teachers and other employees in the education sector from working remotely to not 
working remotely in this analysis. As another example, many activities that ceased or 
were reduced significantly have now resumed and many locations that were closed to the 
public have reopened (e.g., athletic events, shows, gyms, casinos and places of worship), 
and, since more people have returned to the office, there is more need for 
childcare. Therefore, OSHA also changed the status of these employees and others from 
telework to non-telework.  This has the ultimate effect of increasing costs estimates for 
the rule.  

Appendix A (Table A-1), in the accompanying document in the docket, 
“Vaccination, and Testing ETS: Economic Profile and Cost Chapter Appendices” 
(OSHA, October 2021b), presents Dingel and Neiman’s (July 2020) unmodified 
percentages of workers that can work remotely in each detailed occupation (based on 
BLS’s Standard Occupation Code (SOC)).25  Appendix A also presents, in separate 
columns, percentages reflecting the modifications OSHA made in those occupations 
where OSHA changed the results from telework to non-telework for the reasons stated, as 
well as percentages reflecting the modifications made in occupations where employees 
work exclusively outdoors.
According to the OSHA-adjusted Dingel and Neiman estimates, 14 percent of the 
jobs in the United States are performed entirely at home, with significant variation across 
cities and industries. It should be noted that the Dingel and Neiman analysis does not 
specify a proportion of jobs that can be performed at home part of the time; under the 
analysis, employees are either working remotely full-time or are working on site full 
time. 
The second adjustment OSHA made used monthly COVID-specific teleworking 
data from telework questions added during the pandemic to the CPS to estimate the 
reduction in teleworking since its peak and applied those estimates to further adjust 
downward the number of workers currently teleworking (BLS, 2021c). Specifically, the 
CPS questions asked respondents whether they were teleworking due to COVID-19 (as 
25 Except for the adjustments to Dingel and Neiman discussed above, OSHA used the Dingel and Neiman 
estimates for telework by occupation without change. The agency recognizes that the authors’ methodology 
(i.e., the use of 0-1 thresholds) led to a small number of results that may appear not to reflect real-world 
experiences within an occupation. However, Dingel and Neiman represents the best available evidence for 
determining the percentage of employees, by occupation, who are expected to work remotely. OSHA is 
aware of no other source for this information that contains the level of detail necessary to conduct this 
analysis. Moreover, as explained above, OSHA modified the results for individual occupations when it had 
a reasoned basis for doing so. In any event, every NAICS industry is comprised of many occupations, so 
for every occupation where OSHA suspects remote work is overestimated in Dingel and Neiman’s results, 
there may be another where remote work is underestimated.

opposed to teleworking for other reasons) and OSHA estimated the difference in 
teleworking from the peak of COVID-related teleworking in all industries, which 
occurred in May 2020, through August 2021 (see Table IV.B.4).26 The reduction in 
teleworking was then applied as the change in percentage points to the estimated overall 
level of employees covered by the ETS in each NAICS code estimated based on data 
from Dingel and Neiman (July 2020). OSHA’s final teleworking estimates are provided 
in Appendix B in the accompanying document in the docket, “Vaccination, and Testing 
ETS: Economic Profile and Cost Chapter Appendices” (OSHA, October 2021b).  
Reductions due to employees working exclusively outdoors were applied to reduce the 
percentage of covered employees in Appendix B as well.
26 The CPS data were available only at the 2-digit NAICS level as shown in Table IV.B.4.

Table IV.B.4. Percent of Employees who Teleworked because of COVID-19
Industry
NAICS
May 2020
August 
2021
Change
Agriculture and related industries
11
6.6%
3%
-4%
Nonagricultural industries
 
35.9%
14%
-22%
    Mining, quarrying, and oil and gas extraction
21
33.2%
12%
-21%
    Construction
23
14.7%
4%
-10%
    Manufacturing
 
30.3%
13%
-17%
       Durable goods manufacturing
31, 32
31.7%
14%
-18%
       Nondurable goods manufacturing
33
28.2%
12%
-16%
    Wholesale and retail trade
 
19.5%
6%
-13%
       Wholesale trade
42
31.4%
10%
-21%
       Retail trade
44, 45
16.7%
6%
-11%
    Transportation and utilities
 
15.9%
7%
-9%
       Transportation and warehousing
48, 49
11.8%
5%
-7%
       Utilities
22
36.6%
20%
-17%
    Information
51
61.0%
31%
-30%
    Financial activities
 
60.1%
30%
-30%
       Finance and insurance
52
66.8%
38%
-29%
       Real estate and rental and leasing
53
41.9%
14%
-28%
    Professional and business services
 
50.9%
26%
-25%
       Professional and technical services
54
64.1%
36%
-29%
       Management, administrative, and waste services
55, 56
23.7%
8%
-16%
    Education and health services
 
45.6%
12%
-34%
       Educational services
61
76.3%
14%
-62%
       Health care and social assistance
62
25.4%
10%
-15%
           Hospitals
622
21.2%
10%
-11%
           Social assistance
624
37.8%
14%
-24%
    Leisure and hospitality
 
15.0%
5%
-10%
       Arts, entertainment, and recreation
71
37.9%
11%
-27%
       Accommodation and food services
72
8.0%
3%
-5%
    Other services
81
28.2%
8%
-20%
       Private households
814
11.0%
2%
-9%
    Public administration
92
45.5%
23%
-23%
Source: BLS Current Population Survey (BLS, 2021c)

Other Teleworking Literature
A number of companies have announced plans to allow employees to work from 
home at least through the end of 2021 – suggesting that the levels of remote work will not 
be returning to pre pandemic levels in the near future. Many technology and internet 
based companies, such as Dropbox, Coinbase, VMWare, and Slack, have announced a 
complete, permanent move to fully remote work (Courtney, September 27, 2021). Large 
employers such as Facebook, Amazon, and Siemens plan to maintain some physical 
workspace but now offer their employees who are telework eligible the option to work 
from home at least part of the time on a permanent basis (Id.).  Google, Ford, Amazon, 
Apple and other large employers are expecting their telework eligible workers to return to 
on-site work (in some capacity) no earlier than January 2022 with Lyft anticipating a 
February 2022 return (Cerullo, August 31, 2021). As a final example, a survey of 
businesses in Massachusetts found that about 40 percent of teleworkers anticipate they 
will not be returning to the office in January 2022 or earlier (Chesto, June 22, 2021). 
Additional studies provide qualitative support for the conclusion that a range of 
employees will “predictably” work from home both during the pandemic and beyond. In 
Bick, Blandin, and Martens’s paper, “Work from Home Before and After the COVID-19 
Outbreak” the authors use the following information to establish the physical location of 
employment (home or workplace) of workers: data from the Real-Time Population 
Survey (RPS), a national labor market survey of adults between ages 18-64 that mirrors 
the Current Population Survey (CPS) and collects information used in pandemic analysis, 
such as commuting behavior before and after the World Health Organization declared a 
global pandemic; mobility data on commuting; and information from the CPS since May 
2020 on ‘pandemic-related’ telework (Bick et al., February 2021). 
Based on these data, Bick et al., found that there was a sudden decline in 
commuting trips in the U.S. after the initial COVID-19 outbreak, and that even when 

these trips subsequently began increasing back toward the original number of commuting 
trips, the overall number of trips did not return to normal at the end of 2020 because 
many teleworking employees continued working from home. The authors found that the 
surge in work from home came almost entirely from employees working from home 
every workday in the reference week. The authors also suggest that, for some 
occupations, especially those occupations with more educated workers, the change to 
increased work from home appears to be a long-term change; the data showed that, as of 
December 2020, 12.5 percent of these workers reported they expect to be working from 
home full-time in the future, and 24.5 percent reported they expect to be working from 
home part-time.
In “COVID-19 and Remote Work: An Early Look At U.S. Data,” Brynjolfsson et 
al., noted that some of the shift to working from home seems to be a long-term 
phenomenon (Brynjolfsson et al., June 2020). The authors found, using an online survey, 
that 35.2 percent of workers had switched to working from home. Additionally, 15 
percent of workers reported they were already working from home before COVID-19. 
Therefore, this study finds that about half of workers are now working from home – an 
even greater percentage than estimated by Dingel and Neiman. 
Finally, in “Why Working from Home Will Stick,” Barrero et al. predict that 22 
percent of all full workdays will be performed from home after the pandemic ends, 
compared to 5 percent before (Barrero et al., April 2021). The authors highlight five 
factors contributing towards the more permanent shift to telework: diminished stigma, 
better-than-expected experiences working from home, investments in physical and human 
capital enabling work from home, reluctance to return to pre-pandemic activities, and 
innovation supporting work from home.
d. Affected Entities and Employees.

OSHA used data from the U.S. Census’ 2017 Statistics of U.S. Businesses 
(SUSB) to identify private sector entities and employees affected by this section of the 
ETS (U.S. Census Bureau, 2019), and used the BLS 2017 Quarterly Census of 
Employment and Wages (QCEW) to characterize state and local government entities 
(BLS, 2017). SUSB provides estimates of entities and employees by employer size range, 
which OSHA used to exclude employers with fewer than 100 employees.27 
For rail transportation (NAICS 482), which is not included in SUSB or QCEW 
data, OSHA relied on Federal Railroad Administration and Association of American 
Railroads statistics reported in OSHA’s 2020 final rule, Cranes and Derricks in 
Construction: Railroad Roadway Work. See 85 FR 57109 (September 15, 2020). OSHA 
used these data sources to identify public and private railroad employers with more than 
100 employees.  For agricultural NAICS (111 and 112), OSHA relies on the National 
Agricultural Statistics Service, 2017 Census of Agriculture (NASS, 2017) to obtain 
estimates of total entities, employees, and revenues. Since these data do not indicate the 
number of entities with more than 100 employees, OSHA assumes it is the same as the 
average proportion as the support activity sectors for crop and animal production (NAICS 
114 and 115). OSHA similarly specifies teleworking conditions for NAICS 111 and 112 
using the average result for support activities for agriculture (NAICS 114 and 115). For 
the postal service industry, NAICS 491110, which is not included in SUSB, OSHA 
obtains total entity and employment data for private postal services from the QCEW. 
Since these data do not indicate the number of entities with more than 100 employees, 
OSHA assumes it is the same as the average proportion as the related industries, couriers 
and express delivery (NAICS 492110), and local delivery (NAICS 492120). 
27 SUSB with revenue data is only collected every 5 years. While OSHA could attempt to extrapolate these 
data to more recent years, the results would be imprecise because they would change the revenue-employee 
size distributions. Those distributions are crucial for measuring impacts so the agency has opted to use the 
data as is. The total number of employees in OSHA’s estimate is fairly close to that of SUSB. The 2017 
SUSB data includes a total of 128.6 million employees, while the more recent 2018 SUSB data includes a 
total of 130.9 million.

OSHA used the BLS 2020 Occupational Employment and Wage Statistics 
(OEWS), which provides NAICS-specific estimates of employment and wages by 
occupation, along with the data in Appendix B (discussed earlier), to determine the subset 
of non-teleworking employees affected by the ETS. 
Table IV.B.5 summarizes the set of entities covered by the ETS. OSHA estimates 
a total of approximately 263,879 entities and approximately 1.9 million establishments 
incur costs under the ETS.28 OSHA estimates these entities employ approximately 102.7 
million employees, and of these, OSHA estimates approximately 84.2 million employees 
are covered by the ETS and are not excluded from coverage by working remotely 100 
percent of the time or exclusively outside.29  For the purpose of this analysis, OSHA 
estimates that all employees that OSHA estimated will work remotely will continue to do 
so for the duration of this ETS.30
28 This includes public entities only in states with an approved OSHA State Plan. See Table IV.B.2 above 
for further discussion of state plans.
29 OSHA’s estimate of covered employees is based on the discussion in the text.  For example, as OSHA 
writes above: OSHA assumes for the purpose of its analysis that employers covered under the Contractor 
Guidance will conduct work at least some of the time in workplaces not covered under that Guidance and 
so are fully integrated into the scope of the ETS; and the employers and employees covered by the 
Healthcare ETS are also fully integrated into the scope of the ETS.
30 Conditions are changing rapidly, and though many firms are planning to keep expanded telework to some 
extent, as the rate of vaccinated workers increases, there may be increased movement back to the 
workplace beyond what OSHA has estimated here.

Table IV.B.5. Summary of Covered Entities and Employees, COVID-19 ETS
Entities with 100+ Employees
NAICS
NAICS Description
Entities
Establishments
Total 
Employees
Covered 
Employees*1
0
Total
 263,879 
 1,858,935 
 102,673,913 
 84,194,885 
111
Crop Production
 33,096 
 74,655 
 5,822,469 
 5,311,538 
112
Animal Production and Aquaculture
 16,985 
 38,314 
 2,988,147 
 2,725,932 
113
Forestry and Logging
 53 
 198 
 5,938 
 5,368 
114
Fishing, Hunting and Trapping
 8 
 21 
 972 
 887 
115
Support Activities for Agriculture and Forestry
 256 
 714 
 45,473 
 42,628 
211
Oil and Gas Extraction
 259 
 1,339 
 81,544 
 54,323 
213
Support Activities for Mining
 548 
 2,874 
 206,796 
 177,099 
221
Utilities 
 842 
 13,136 
 594,213 
 457,268 
236
Construction of Buildings
 1,562 
 3,968 
 377,761 
 296,975 
237
Heavy and Civil Engineering Construction
 1,693 
 4,135 
 602,769 
 518,130 
238
Specialty Trade Contractors
 5,465 
 11,908 
 1,317,912 
 1,106,486 
311
Food Manufacturing
 2,649 
 5,899 
 1,283,687 
 1,198,905 
312
Beverage and Tobacco Product Manufacturing
 339 
 976 
 138,587 
 118,372 
313
Textile Mills
 291 
 448 
 73,287 
 66,475 
314
Textile Product Mills
 242 
 393 
 64,522 
 56,349 
315
Apparel Manufacturing
 216 
 256 
 43,856 
 37,266 
316
Leather and Allied Product Manufacturing
 60 
 88 
 16,240 
 13,401 
321
Wood Product Manufacturing
 1,037 
 2,637 
 258,244 
 233,721 
322
Paper Manufacturing
 712 
 2,033 
 299,184 
 267,712 
323
Printing and Related Support Activities
 857 
 1,942 
 238,106 
 177,505 
324
Petroleum and Coal Products Manufacturing
 295 
 1,369 
 96,415 
 83,198 
325
Chemical Manufacturing
 2,211 
 5,063 
 663,493 
 551,194 
326
Plastics and Rubber Products Manufacturing
 2,054 
 4,421 
 627,642 
 565,890 
327
Nonmetallic Mineral Product Manufacturing
 1,045 
 5,684 
 273,490 
 236,634 
331
Primary Metal Manufacturing
 916 
 1,609 
 322,169 
 294,607 
332
Fabricated Metal Product Manufacturing
 3,852 
 6,538 
 776,594 
 680,758 
333
Machinery Manufacturing
 2,727 
 4,324 
 748,064 
 614,838 
334
Computer and Electronic Product 
Manufacturing
 1,706 
 2,653 
 652,153 
 477,811 
335
Electrical Equipment, Appliance, and 
Component Manufacturing
 803 
 1,323 
 276,253 
 228,550 
336
Transportation Equipment Manufacturing
 1,953 
 3,560 
 1,413,486 
 1,239,323 
337
Furniture and Related Product Manufacturing
 719 
 1,095 
 230,143 
 203,844 
339
Miscellaneous Manufacturing
 1,074 
 2,149 
 341,544 
 265,877 
423
Merchant Wholesalers, Durable Goods 
 8,988 
 68,595 
 2,072,944 
 1,385,610 
424
Merchant Wholesalers, Nondurable Goods 
 5,669 
 32,910 
 1,588,892 
 1,063,719 
425
Wholesale Electronic Markets and Agents and 
Brokers 
 342 
 1,753 
 149,629 
 77,323 
441
Motor Vehicle and Parts Dealers 
 3,826 
 37,692 
 1,138,994 
 985,554 
442
Furniture and Home Furnishings Stores 
 415 
 15,295 
 263,232 
 225,025 
443
Electronics and Appliance Stores 
 239 
 10,035 
 209,975 
 182,586 
444
Building Material and Garden Equipment and 
Supplies Dealers 
 1,192 
 22,265 
 890,976 
 781,239 

Table IV.B.5. Summary of Covered Entities and Employees, COVID-19 ETS
Entities with 100+ Employees
NAICS
NAICS Description
Entities
Establishments
Total 
Employees
Covered 
Employees*1
445
Food and Beverage Stores 
 1,927 
 33,222 
 2,356,676 
 2,226,381 
446
Health and Personal Care Stores 
 663 
 50,498 
 726,249 
 658,548 
447
Gasoline Stations 
 1,332 
 41,559 
 524,523 
 503,976 
448
Clothing and Clothing Accessories Stores 
 924 
 82,509 
 1,462,230 
 1,393,288 
451
Sporting Goods, Hobby, Musical Instrument, 
and Book Stores 
 281 
 11,623 
 331,339 
 307,083 
452
General Merchandise Stores 
 141 
 45,771 
 2,666,443 
 1,991,708 
453
Miscellaneous Store Retailers 
 1,009 
 22,875 
 356,750 
 279,509 
454
Nonstore Retailers 
 1,447 
 7,589 
 430,825 
 279,099 
481
Air Transportation
 284 
 2,115 
 452,001 
 412,795 
482
Rail Transportation
 8 
 8 
 182,819 
 162,922 
483
Water Transportation
 158 
 538 
 52,723 
 41,954 
484
Truck Transportation
 2,597 
 15,684 
 878,429 
 739,360 
485
Transit and Ground Passenger Transportation
 927 
 3,775 
 361,731 
 332,064 
486
Pipeline Transportation
 133 
 3,519 
 49,720 
 40,045 
487
Scenic and Sightseeing Transportation
 81 
 173 
 13,055 
 11,407 
488
Support Activities for Transportation
 1,428 
 11,178 
 482,778 
 345,888 
491
Postal Service
 22 
 324 
 5,725 
 5,246 
492
Couriers and Messengers
 195 
 6,232 
 582,624 
 541,677 
493
Warehousing and Storage
 2,585 
 10,555 
 849,269 
 772,759 
511
Publishing Industries (except Internet)
 1,477 
 8,440 
 802,903 
 557,875 
512
Motion Picture and Sound Recording Industries
 406 
 3,518 
 244,844 
 167,652 
515
Broadcasting (except Internet)
 336 
 3,503 
 216,126 
 150,029 
517
Telecommunications
 637 
 47,673 
 986,794 
 660,528 
518
Data Processing, Hosting, and Related 
Services
 1,203 
 7,615 
 428,143 
 305,191 
519
Other Information Services
 431 
 2,393 
 242,159 
 166,421 
521
Monetary Authorities-Central Bank
 12 
 58 
 19,738 
 14,064 
522
Credit Intermediation and Related Activities
 3,950 
 142,258 
 2,491,060 
 1,633,832 
523
Securities, Commodity Contracts, and Other 
Financial Investments and Related Activities
 1,761 
 39,199 
 657,382 
 373,616 
524
Insurance Carriers and Related Activities
 2,333 
 40,887 
 2,025,570 
 1,003,146 
525
Funds, Trusts, and Other Financial Vehicles 
 32 
 43 
 1,148 
 597 
531
Real Estate
 3,619 
 58,080 
 670,589 
 466,656 
532
Rental and Leasing Services
 980 
 30,076 
 340,885 
 261,218 
533
Lessors of Nonfinancial Intangible Assets 
(except Copyrighted Works)
 240 
 432 
 24,333 
 12,725 
541
Professional, Scientific, and Technical Services
 14,480 
 96,947 
 5,041,154 
 3,074,578 
551
Management of Companies and Enterprises
 17,492 
 45,781 
 3,372,010 
 1,809,583 
561
Administrative and Support Services
 13,138 
 72,555 
 9,392,357 
 7,506,733 
562
Waste Management and Remediation Services
 820 
 7,387 
 261,091 
 224,482 
611
Educational Services
 15,228 
 30,172 
 7,796,496 
 7,194,705 
621
Ambulatory Health Care Services
 12,590 
 123,811 
 4,046,787 
 3,387,780 
622
Hospitals
 4,638 
 8,458 
 8,477,383 
 7,365,469 
623
Nursing and Residential Care Facilities
 9,953 
 55,269 
 3,012,595 
 2,702,195 
624
Social Assistance
 10,373 
 42,935 
 1,876,263 
 1,625,123 

Table IV.B.5. Summary of Covered Entities and Employees, COVID-19 ETS
Entities with 100+ Employees
NAICS
NAICS Description
Entities
Establishments
Total 
Employees
Covered 
Employees*1
711
Performing Arts, Spectator Sports, and Related 
Industries
 863 
 1,653 
 317,314 
 236,055 
712
Museums, Historical Sites, and Similar 
Institutions
 389 
 664 
 90,298 
 69,151 
713
Amusement, Gambling, and Recreation 
Industries
 2,743 
 12,532 
 1,025,842 
 912,667 
721
Accommodation
 2,312 
 13,016 
 1,506,093 
 1,341,571 
722
Food Services and Drinking Places
 11,586 
 164,442 
 5,872,006 
 5,771,927 
811
Repair and Maintenance
 1,926 
 16,142 
 328,743 
 280,374 
812
Personal and Laundry Services
 1,202 
 29,202 
 416,083 
 384,695 
813
Religious, Grantmaking, Civic, Professional, 
and Similar Organizations
 3,390 
 9,780 
 728,019 
 478,616 
Sources: OSHA analysis based on SUSB (U.S. Census Bureau, 2019), QCEW (BLS, 2017), Agricultural Census (NASS, 
2017), BLS OEWS (BLS, 2021a), BLS ORS (BLS, 2020), BLS CPS (BLS, 2021c), and (Dingel and Neiman, July, 2020).
*For instances where occupation data was not available at the 4-digit level from BLS, OSHA estimated teleworking for the 4-
digit NAICS based on the average of reported data for other NAICS in the same 3-digit code.
1Derived by multiplying the total employees by the percent of employees covered by ETS in Table B-1

III. Baseline Vaccine Status for Covered Employees.
To estimate the cost of the ETS, OSHA must first estimate the baseline 
vaccination status for the 84.2m covered employees (those who work for employers with 
100 or more employees and are not otherwise excluded from coverage). OSHA 
recognizes that employees’ current vaccination status continues to change on a daily 
basis. When specifying baseline vaccination rates, OSHA used the most recently 
available vaccination data from CDC, reflecting current conditions.  For the remaining set 
of unvaccinated employees covered by the ETS, after accounting for baseline 
vaccinations, OSHA estimates the number of these employees who will be vaccinated 
and the number who will test under the ETS. OSHA’s methodology for this analysis is 
detailed below.
a. Estimate the Current Vaccination Rate for Covered Employees.
To estimate the current vaccinate rate for covered employees, OSHA obtained 
recent vaccination data by age group from the CDC COVID Data Tracker (CDC, October 
4, 2021a).31 For age groups covering 18 – 74 years old, these data include the number of 
people who are fully-vaccinated as well as the number of people of who have initiated 
their first shot in the past two weeks (relative to the October 4, 2021 data).32 OSHA 
estimates the vaccination rate for each group (percent of total population in the age group 
who are vaccinated) based on the total number of people who are fully-vaccinated and 
had their first shot in the past two weeks, as a fraction of the population in each age 
31 The data from the CDC website was retrieved on October 4, 2021.
32 Age groups included: 18-24, 25-39, 40-49, 50-64, and 65-74.  OSHA had not included the group 65-74 in 
the economic analysis of the Healthcare ETS this past spring because for the healthcare sector, using the 
population wide average of workers in this age bracket was felt would overcount the number of such 
workers in this sector.  OSHA is including this group now that more of the other age populations have been 
vaccinated and those concerns are no longer as relevant.  This ETS will therefore indicate that a slightly 
higher percentage of universe of covered employees is vaccinated than if that age group of 65-74 was 
excluded altogether, but it also increases the number of employees for which additional compliance costs 
are factored in.  OSHA interprets the ultimate result as a more accurate reflection of the workplace and 
notes that more costs are included than if the age group had been excluded from the analysis.

group, obtained from the BLS Current Population Survey (CPS) (BLS, 2021d). Then, to 
estimate the overall average vaccination rate across age groups 18 – 74 years old, OSHA 
weighted each group based on the distribution of the labor force by age, also obtained 
from the BLS CPS (BLS, 2021d). As shown in Table IV.B.6, OSHA estimates an overall 
vaccination rate of 61.3 percent for covered employees (and 38.7 percent unvaccinated). 
The healthcare sector had an earlier push to get healthcare workers vaccinated and has a 
higher current rate, estimated to be 70 percent.33
33 The agency takes a recent survey (Lazer et al., August 16, 2021) which breaks out rates for healthcare 
vaccination and non-healthcare, and rather than replacing the CDC base vaccination rate uses the CDC rate 
to make an adjustment upwards to the healthcare rate of 70 percent.

Table IV.B.6. Current Vaccination Rate for Covered Employees
Age Group
# Persons 
Fully 
Vaccinated
# Persons 
initiated 
vaccination 
in Last 14 
Days
Population
Labor Force 
Population
Labor Force % 
Distribution
Vaccination 
Rate
18_24
14,561,608 
 375,202 
28,721,000
18,125,000
12%
52.01%
25_39
35,120,448 
 842,480 
66,219,000
54,114,000
35%
54.31%
40_49
24,269,765 
 409,905 
39,631,000
32,547,000
21%
62.27%
50_64
43,093,957 
 505,140 
62,386,000
42,447,000
27%
69.89%
65_74
25,442,283 
 358,394 
32,388,000
8,626,000
6%
79.66%
Average Vaccination Rate
61.3%
Source: CDC (October 4, 2021a), BLS (2021d)

Based on the above, OSHA estimates that the 84.2m covered employees includes 52.5 
million (62 percent) vaccinated employees and 31.7 million unvaccinated employees (38 
percent). 
b. Adjust Baseline Vaccination for Continuing Trends.
OSHA adjusts the current vaccination rate to account for continuing trends in 
vaccinations among covered employees due to employers’ continued implementation of 
vaccine mandates and other policies (described below), under the ETS. To make this 
adjustment, OSHA requires 1) further characterization of the set of unvaccinated 
employees in terms of their likelihood to receive the vaccine, and 2) specification of the 
extent of employer-mandated and other employer vaccination policies.
Based on vaccine confidence data from CDC (CDC, October 2021a), 13.8 percent 
of the population “probably or definitely will not” get the vaccine; hereafter referred to as 
“vaccine-hesitant”. Since this group is by definition part of the currently unvaccinated, 
OSHA characterizes the currently unvaccinated (37.6 percent) as being comprised of 
those who are vaccine--hesitant (13.8 percent) and the remainder, who while 
unvaccinated, are not hesitant because they are not in the “probably or definitely will not” 
group (23.8 percent).
Among those who are vaccine-hesitant, OSHA estimates that 5 percent of covered 
employees (or about 36 percent of the vaccine-hesitant), are hesitant due to a religious (4 
percent) or medical (1 percent) exemption. The remaining 8.8 percent include those who 
are vaccine-hesitant for other reasons. For the 4 percent estimate for religious 
exemptions, OSHA relies on data from Vermont, which removed its vaccine exemption 
for nonreligious personal beliefs in 2016 and saw the proportion of kindergarten students 
with a religious exemption rise to about 4 percent (Graham, September 15, 2021). In 
analyzing this issue, the agency also reviewed other religious exemption data concerning 
state workers in Oregon and Washington; the agency decided not to rely on these data 

because the Vermont data is a more accurate measure of the correct religious exemption 
rate, although the data does represent parents deciding on whether to claim an exemption 
for their child, not for themselves.  This is because, unlike the Vermont data, the Oregon 
and Washington data contain workers that have applied, but not yet been accepted, for a 
religious exemption (O’Sullivan, September 18, 2021; KEZI News, September 25, 2021).  
In Oregon, 5 percent and in Washington 8 percent of the employees have requested 
accommodations though only a fraction so far have been accepted.  However, the data are 
not inconsistent with the Vermont data even though the process in both Oregon and 
Washington are not yet complete. For the 1 percent estimate for medical exemptions, 
OSHA relied on the Household Pulse Survey (HPS) conducted by the U.S. Census (U.S. 
Census Bureau, 2021). In Table 6a of the Health Tables for Week 31, September 1, 2021 
through September 13, 2021, about 1% of the US population said they would not get the 
vaccine because “Doctor has not recommended it,” and OSHA uses this response as a 
proxy for all medical conditions.34   
Table IV.B.7 presents the number of employees in each vaccination category, 
which informs OSHA’s subsequent estimates of which currently unvaccinated employees 
may be vaccinated by employer-mandates, vaccinated under the ETS, or tested under the 
ETS. 
34 Table 6a presents that 3,884,902 of the population will not take the vaccine because the “doctor has not 
recommended it” out of a total of 38,936,606 who will not get the vaccine for any reason. Medical reasons 
are then about 10% of the general population that will not get the vaccine, and the ones who won’t get the 
vaccine are about 10% of the whole population, giving 1% (.10 * .10).

Table IV.B.7. Summary of Currently Unvaccinated Employees
Baseline Vaccination Status
Percent of Covered 
Employees
Number of Covered 
Employees
All Covered Employees
100%
            84,194,885 
Currently Vaccinated
62.4%
 52,510,781 
Unvaccinated
37.6%
 31,684,103 
Vaccine-Hesitant
13.8%
 11,618,894 
Medical exemption
1.0%
 841,949 
Religious exemption
4.0%
 3,367,795 
Hesitant for other reasons
8.8%
 7,409,150 
Unvaccinated but Not Vaccine-Hesitant
23.8%
 20,065,209 
Sources: OSHA analysis, CDC COVID Data Tracker (CDC, October 4, 2021a), BLS Current Population Survey (CPS) 
(BLS, 2021d), Household Pulse Survey (U.S. Census Bureau, 2021), New York Times (Graham, September 15, 
2021)

Next, OSHA estimates the number of currently unvaccinated employees that are likely to 
become vaccinated while the ETS is in effect, based on their employers’ policies. Based 
on limited data on current vaccine mandate implementation and forecasts for future 
implementation (Mishra and Hartstein, August 23, 2021; ASU COVID-19 Diagnostic 
Commons, October 6, 2021), OSHA estimates that 25 percent of firms in scope currently 
have a mandate, and assumes that this will rise to 60 percent of employers after the ETS 
is in place.  The baseline of 25 percent is based on recent surveys showing a range of 
approximately 13-45 percent of employers currently requiring or planning to require 
vaccination among employees (see Willis Towers Watson, June 23, 2021; Mishra and 
Hartstein, August 23, 2021; ASU COVID-19 Diagnostic Commons, October 6, 2021). 
Absent the ETS, OSHA assumes that the percentage of firms would remain 25 percent 
(with some measure of upward adjustment due to other federal vaccine mandates 
affecting select populations, as discussed above).  To the extent more firms than OSHA 
estimates would mandate vaccination independent of the ETS and thereby increase the 
vaccination rate (again because of factors such as other federal vaccine mandates), then 
the agency’s costs are overestimated because the agency’s baseline vaccination rate is too 
low.  The assumption of an increase from 25 to 60 percent is based on the same set of 
surveys that indicate that the share of employers who will mandate vaccinations after the 
ETS (including those that already mandate vaccinations) range from 25- 75 percent, see 
above references. The agency also assumes that employees are distributed in the same 
proportion across employers with and without a vaccine mandate (e.g., if 60 percent of 
firms mandate vaccination, 60 percent of employees will be vaccinated due to the 
mandate (less those who remain unvaccinated due to religious or medical exemptions).
OSHA assumes that all unvaccinated employees subject to an employer mandate 
will be vaccinated under that employer mandate, except for those seeking a medical or 
religious exemption. For unvaccinated employees not subject to an employer mandate, 

OSHA assumes that they will also be vaccinated at their employer’s request, except for 
employees who are vaccine-hesitant, which includes not only those who remain 
unvaccinated for medical and religious reasons, but also those who are hesitant for any 
other reason.  OSHA carries through its assumptions and estimates into its total cost 
estimates.  For example, OSHA estimates that the 25 percent of firms in scope that 
currently have a vaccination mandate will not need to implement a new written policy on 
vaccination in response to the ETS since they will already have implemented a policy that 
meets the requirements of the ETS.   
In total, OSHA estimates that 27 percent of covered employees (22.7 million) will 
be vaccinated based on employer policies under the ETS; or 72 percent of covered 
employees who are currently unvaccinated. The resulting vaccination rate, adjusted for 
the ETS, is estimated based on the total of those who are currently vaccinated and those 
who will be vaccinated under employer policies, 89.4 percent as shown in Table IV.B.8.  
Calculations of this nature, while not discussed in more detail in this analysis, are 
contained fully in the spreadsheets supporting this analysis (OSHA, October 2021a).35  
35 OSHA notes that these estimates differ for employees covered by the Healthcare ETS.  OSHA calculated 
these estimates separately because, as stated above, OSHA is only taking costs for these employees in the 
last four months of the assumed 6-month period while the ETS remains in effect.  While OSHA does not 
describe in detail how it derived estimates for employees covered by the Healthcare ETS in this analysis, 
the derivation of those estimates run parallel to those described above.  For more information, please see 
the spreadsheets supporting this analysis.  (OSHA, October 2021a).

Table IV.B.8. Summary of Employee Vaccination Status under the ETS
Employee Vaccination Status under the ETS
Percent of All 
Covered 
Employees
Number of 
Covered 
Employees
Total Vaccinated, including ETS
89.4%
 75,262,549 
Vaccinated in the baseline, pre-ETS
62.4%
 52,510,781 
Vaccinated under the ETS
27.0%
 22,751,767 
   Vaccinated under the ETS, Employer Mandates
14.3%
 12,050,322 
   Vaccinated under the ETS, Voluntary Employer Policies
12.7%
 10,701,445 
Total Unvaccinated who Test with ETS
7.5%
 6,341,323 
Employer-Mandates, Vaccine exempt employees who test
1.8%
 1,526,453 
Voluntary Policies, Vaccine exempt employees who test
2.1%
 1,744,518 
Voluntary Policies, Other vaccine-hesitant employees who test
3.6%
 3,070,352 
Religious/medical exempt who Return to Telework
1.1%
 938,773 
Other hesitant who Return to Telework
2.0%
 1,652,240 
TOTAL COVERED EMPLOYEES
100%
 84,194,885 
Source: OSHA analysis 

From Table IV.B.8, OSHA estimates that approximately 75.3 million (89.4 percent) of 
covered employees will be vaccinated when the ETS is in full effect, and that 
approximately 8.9 million employees (10.6 percent, made up of approximately 6.3 
million covered employees who will be tested for COVID under the ETS and 
approximately 2.6 million employees who return to telework (see next paragraph)) will 
remain unvaccinated. This final set of unvaccinated employees includes all employees 
not vaccinated because of religious or medical accommodations or medical 
contraindication, plus the portion of those who are vaccine-hesitant for any other reason, 
who were not vaccinated because their employer has opted for a voluntary vaccination 
policy. 
From the above, OSHA estimates that about 5 percent of all covered employees 
will seek and receive religious or medical accommodations or exemption for medical 
contraindication. While the agency encourages employers to consider the most protective 
accommodations such as telework, which would prevent the employee from being 
exposed at work or from transmitting the virus at work, for cost analysis purposes the 
agency assumes these workers will largely be tested in order for their employers to 
comply with the ETS.  Consistent with the overall average 22 percent of those who 
returned to work after teleworking earlier in the pandemic (see teleworking discussion 
above), OSHA assumes for this cost analysis that only 22 percent of workers needing a 
reasonable accommodation will return to full time telework as a reasonable 
accommodation.  OSHA also assumes that the 78 percent remainder will follow the 
testing/masking protocols in the ETS as a reasonable accommodation.
For hesitant employees who will not seek a religious or medical accommodation, and 
who work in a firm with a testing option, the agency assumes as above that those who 
were teleworking before (again on average 22 percent) will return to telework rather than 
being tested. 

c. Cost of Absenteeism to Employers.
Even mild cases of Covid-19 can be costly to employers as they can induce 
productivity losses due to work absences, both among those infected and their close 
contacts who may be subject to quarantine requirements. While many workers were able 
to engage in telework in March-April 2020, several occupational groups deemed 
essential, including childcare workers, personal care aids, healthcare support occupations, 
and food processing workers, exhibited significantly higher rates of absenteeism during 
that period, which the authors attributed to some workers contracting COVID-19 
(Groenewold et al., July 10, 2020).  Absenteeism can also affect the productivity of 
workers who are present, similar to how turnover can impose costs on incumbent workers 
(Kuhn and Yu, April 2021).
In aggregate, productivity losses from absences can be costly, as evidenced by the 
economic losses from seasonal influenza. One estimate found that the United States loses 
20.1 million days of economic productivity every year due to influenza, an ongoing loss 
equivalent to 80,400 full-time worker-years (Putri et al., June 22, 2018).  Another recent 
study found that higher influenza vaccination rates result in both fewer deaths and 
significantly reduced illness-related work absences (White, 2021).  
OSHA recognizes that absenteeism has been a problem.  However, as explained 
in other sections of the preamble, the ETS vaccination and testing and face covering 
requirements are necessary to reduce the spread of COVID-19 in the workplace, which 
may in part reduce absenteeism.  The ETS might in a limited sense also increase 
absenteeism because the rule requires employers to temporarily remove from the 
workplace any employee who receives a positive COVID-19 test or is diagnosed with 
COVID-19 by a licensed healthcare provider.  However, this provision will also help to 
further reduce absenteeism because, when an infected employee is promptly removed 
from the workplace, that can prevent one employee from infecting other employees in the 

workplace and potentially causing an outbreak or a super-spreader event.  Thus, OSHA 
concludes that the ETS may, on net, help ameliorate absenteeism by reducing illnesses, 
but in any event will not increase absenteeism (see OSHA, October 2021c). 
d. The Effect of Employee Turnover.
One of the primary concerns among employers in imposing vaccination mandates 
is loss of staff, with 60 percent of employers selecting it as a concern with regard to 
mandating COVID-19 vaccination, according to one survey (Mishra and Hartstein, 
August 23, 2021).36  To this end, employer vaccination mandates could lead to employee 
turnover; employees could either leave on their own volition or employers who have 
instituted strict vaccination policies may fire workers who are not vaccinated, or place 
them on unpaid leave.  
On the other hand, there is countervailing evidence to suggest that employers who 
implement a vaccine mandate will be met with an influx of potential workers.  Many 
employees would prefer a mandate in place, and would be more likely to stay with, or 
apply to, a firm that had a vaccine mandate in place.  For example, although Inova health 
system in Northern Virginia, lost 89 workers for noncompliance with the system’s 
vaccination mandate, that loss amounted to less than 0.5 percent of its workforce, 
(Portnoy, October 3, 2021), and, in any event, Inova’s CEO stated that the vaccine 
mandate has helped with recruitment, and that its workers are concerned for their own 
safety and want to know they are working with vaccinated colleagues.  This same article 
listed some other Virginia healthcare systems with higher rates of loss in connection with 
vaccine mandates. Valley Health terminated 1 percent of its employees, while Luminis 
Health had about 2 percent of its workers still unvaccinated at the time of its mandate 
deadline. As another example, although United Airlines had 593 employees (out of the 
36 This survey done in August, 2021, has 1,630 responses, reported by HR staff, attorneys, and executives. 
Described as being “from a variety of industries,” 83 percent of respondents were from companies with 
more than 100 employees.

company’s 67,000 U.S. employees) who had not complied with the company’s 
vaccination mandate at the end of September (a number that dropped below 240 
employees by October 1), the company reported it has received 20,000 applications for 
2,000 flight attendant positions, a much higher ratio than before the pandemic (Chokshi 
and Scheiber, October 2, 2021).  In addition, one survey reports that among employee 
resignations due to COVID-19 workplace policies, 42 percent reported lack of workplace 
safety policies, 17 percent reported that existing workplace policies were not stringent 
enough, and only 39 percent reported overly restrictive workplace policies, suggesting 
that many employees will welcome vaccine mandates (ASU COVID-19 Diagnostic 
Commons, October 6, 2021).37
While employee turnover is a natural part of business in any industry, higher 
employee turnover rate than normal can have a direct impact on profit and revenue. The 
normal range of employee turnover differs widely by industry, with an average turnover 
rate of about 50 percent per year overall for the private sector. 38 For example, between 
2016 and 2020, employee turnover ranged from 55 percent to 70 percent in the retail 
industry and from 40 percent to 60 percent in the transportation industry (the industry 
sectors with the highest employment).39 
OSHA acknowledges that a vaccine mandate may result in increased employee 
turnover, but one recent survey40 suggests it is very unlikely that this potential increase in 
employee turnover will exceed the ranges that industries have experienced over time. The 
survey, though limited because many respondents did not have mandates in place at that 
37 This August 2021 global survey (all results presented here are for the US only) has 1,143 responses. It 
covers 28 industries, including: Technology and Software, Business and Professional Services, 
Manufacturing, Construction, and Healthcare. Ninety percent of respondents were from companies with 
more than 100 employees.
38 BLS (March 11, 2021)
39 Id.
40 Umland, October 13, 2021. This October 2021 survey has 1,059 total respondents, though only 365 have 
implemented a vaccination mandate and answered this turnover question. 

time, shows that there was no impact on turnover for 71 percent of those with mandates 
in place. Only 25 percent saw a slight increase in turnover (1 percent to 5 percent above 
normal) and only 4 percent saw a significant increase (more than 5 percent above 
normal). As such, OSHA does not anticipate that the potentially increased employee 
turnover attributable to vaccine mandates will be substantial enough to negate normal 
profit and revenue.
To this end, an important factor to consider in examining turnover in connection 
with vaccine mandates is the unquantified cost savings and other positive economic 
impacts accruing to employers that institute vaccine mandates. These include reduced 
absenteeism due to fewer COVID-19 illnesses and quarantines, as discussed above.  
Other positive economic impacts of a vaccine mandate are increased retail trade from 
customers that feel less at risk and better relations with suppliers and other business 
partners. These all would contribute to improved business and increased profits.   
The existence of these cost savings and other positive economic impacts accruing 
to employers that comply with the ETS suggests that the actual net costs of the ETS could 
be much lower than the costs reported in this section of the economic analysis.  As 
OSHA discusses above, OSHA has provided evidence to support its estimate that 25 
percent of covered employers already voluntarily require that their employees be 
vaccinated and a much larger percentage are considering a vaccine mandate. This 
supports the conclusion that these businesses agree that doing so will ultimately save 
costs.
In addition, under the ETS, employers may implement a policy that allows for 
testing and face covering instead. Firms will have a tendency to self-select: if a large 
proportion of its work force has indicated concern about a vaccine mandate, the firm is 
more likely to choose the testing option to retain their workers.  This is one factor that led 
the agency to estimate that approximately 40 percent of employers will allow employees 

to choose testing and face coverings in lieu of vaccination.  To the extent employers are 
concerned about employee testing costs, employers can generally absorb testing costs or 
help employees reduce those costs through low-cost assistance such as employer 
proctoring of tests (even though that is not required by this ETS). Departure of personnel 
because of vaccine mandates is also likely to be less common when vaccine mandates are 
more prevalent across employers in a region or industry. One survey reports that 65 
percent of employers state that actions of other companies in their industry are very, or at 
least moderately, important in deciding to mandate vaccination (Mishra and Hartstein, 
August 23, 2021).  
Mandatory vaccinations for COVID-19 are still relatively new because vaccines 
only became available in quantities sufficient to support such mandates only about 6 
months ago, and the FDA has only recently moved past emergency clearance to final 
clearance.  While there is not an abundance of evidence about whether employees have 
actually left or joined an employer based on a vaccine mandate, particularly one with an 
alternative allowing for testing in lieu of vaccination, OSHA has examined the best 
available evidence it could locate in the timeline necessary to respond with urgency to the 
grave danger addressed in this ETS.  Based on that, OSHA is persuaded that the net effect 
of the OSHA ETS on employee turnover will be relatively small, given the option for 
employers to implement a testing and face covering policy and the countervailing forces 
surrounding turnover that will limit those effects, as discussed above.  
Finally, OSHA finds one line of evidence particularly persuasive because it 
involves data instead of polls:  while different surveys may suggest different levels of 
worker intentions (joining or remaining with a safer employer versus leaving an employer 
to avoid vaccination),41 the data suggests that the number of employees who actually 
41  Two polls from June 2021, when the number of COVID-19 cases had dropped dramatically just before 
the Delta Variant led to a surge in cases, indicated that 50% of unvaccinated employees surveyed said that 

leave an employer is much lower than the number who claimed they might:  1% to 3% or 
less actually leave, compared to the 48-50% who claimed they would.42  As discussed 
earlier, this turnover number is well below the average turnover rate in most industries.  
Thus, OSHA concludes that whether or not the ETS proves helpful to recruitment efforts 
for some employers, it will not, on balance, add significant new costs to covered 
employers or threaten the economic feasibility of any industry during a six month period.  
OSHA seeks comments on these estimates and conclusions, as well as further data 
that it could use to refine its estimates.
IV. Cost Analysis for COVID-19 Vaccination and Testing ETS, § 1910.501.
In this section, OSHA provides estimates of the per-entity and total costs for the 
requirements of this ETS. Section 6(c)(3) of the OSH Act states that the Secretary will 
publish a final standard “no later than six months after publication of the emergency 
standard.” Costs are therefore estimated over a six-month time period. Note that the 
estimates are presented in this section at the 3-digit NAICS level, but the analysis was 
conducted at the 6-digit NAICS level and aggregated to the 3-digit level for presentation 
purposes.  The 6-digit NAICS level data is accessible in the supporting spreadsheet. It 
should be noted that this analysis deals strictly with averages. For any given entity, actual 
they would leave their job rather than accept a vaccination mandate from their employer. (KFF et al., June 
30, 2021) (the same percentage also responded that “The number of cases is so low that there is no need for 
more people to get the vaccine.”). A separate poll from the same time also stated that 48% of “vaccine 
hesitant” employees claimed they would quit their jobs rather than be vaccinated.  (Barry et al., September 
24, 2021 – citing yet unpublished June 2021 poll). In a more recent poll, about 44% of workers said that 
they would consider leaving their jobs if they were forced to get vaccinated, while around 38% of workers 
would consider leaving their current employer if the organization did not enact a vaccine mandate.  (Kelly 
August 12, 2021).  Interestingly, in that survey there was a direct correlation between the age of the worker 
and the desire to have a vaccinated workplace:  younger workers, usually the most mobile portion of the 
workforce, had a much higher desire for a vaccinated workforce (50% of Generation Z employees, as 
compared to 33% of Baby Boomers).
42 An article titled “Unvaccinated Workers Say They’d Rather Quit Than Get a Shot, but Data Suggest 
Otherwise” noted the 48%-50% threat to leave, but included hard data showing nothing close to those 
levels actually occurred: Houston Methodist Hospital required its 25,000 workers (including its 3,580 
unvaccinated employees) to get a vaccine by June 7, and only 153  resigned or were fired (4% of the 3,580 
unvaccinated employees; 0.6% of the total number of employees); other examples of the numbers of 
employees who left in response to their employers’ mandatory vaccine policy involved 5 out of 527 (0.9%), 
2 out of 250 (0.8%), 6 out of 260 (3%), and 125 out of 35,800 (0.3%). (Barry et al., September 24, 2021).

costs may be higher or lower than the point estimate shown here, but using an average 
allows OSHA to evaluate feasibility by industry as required by the OSH Act. In addition, 
OSHA has limited data on many of the parameters needed in this analysis and has 
estimated them based on the available data, estimates for similar requirements for other 
OSHA standards, consultation with experts in other government agencies, and internal 
agency judgment where necessary. OSHA’s estimates are therefore based on the best 
evidence available to the agency at the time this analysis of costs and feasibility was 
performed.
As mentioned above, OSHA estimates that approximately 264,000 entities have 
employees who will be subject to the requirements of the ETS, including approximately 
84.2 million employees. Many ETS requirements result in labor burdens that are 
monetized using the labor rates described next.   
a. Wage Rates.
OSHA used occupation-specific wage rates from BLS 2020 OEWS data (BLS, 
2021a). Within each affected 6-digit NAICS industry, OSHA calculated the employee-
weighted average wage to be used in the analysis. OSHA estimated loaded wages using 
the BLS’ Employer Cost for Employee Compensation data (BLS, 2021b), as well as 
OSHA’s standard estimate for overhead of 17 percent times the base wage.
Costs are estimated using three labor rates for each NAICS industry: the average 
labor rate for all employees, the labor rate for General and Operations Managers (SOC 
code 11-1021), and the labor rate for Office Clerks, General (SOC 43-9060). Industry-
specific wage rates are presented in Appendix C in the accompanying document in the 
docket, “Vaccination and Testing ETS: Economic Profile and Cost Chapter Appendices 
(OSHA, October, 2021b).”
b. Rule Familiarization, Employer Policy on Vaccination, and Information Provided to 
Employees.

ETS Requirements
Section 1910.501(d)(1) of the ETS specifies that the employer must establish and 
implement a written mandatory vaccination policy. The employer is exempted from the 
requirement in paragraph (d)(1) only if the employer establishes and implements a 
written policy allowing any employee not subject to a mandatory vaccination policy to 
either choose to be fully vaccinated against COVID-19 or to provide proof of regular 
testing for COVID-19 in accordance with paragraph (g) of the ETS and to wear a face 
covering in accordance with paragraph (i) of the ETS.43   
In addition, under § 1910.501(j), information provided to employees, the ETS 
requires the employer to inform each employee, in a language and at a literacy level the 
employee understand about: 1) the requirements of the ETS as well as any employer 
policies and procedures established to implement the ETS; 2) COVID-19 vaccine 
efficacy, safety, and the benefits of being vaccinated; 3) the requirements of 29 CFR 
1904.35(b)(1)(iv) and Section 11(c) of the OSH Act; and 4) the prohibitions of 18 U.S.C. 
1001 and Section 17(g) of the OSH Act.
As stated, the ETS face covering requirements are contained in paragraph (i) of 
the ETS.  Under that paragraph, the employer, with certain exceptions specified in the 
ETS, must ensure that each employee who is not fully vaccinated wears a face covering 
when indoors and when occupying a vehicle with another person for work purposes.  The 
ETS does not require, nor does it prohibit, the employer to pay for any costs associated 
43 Note to paragraph (d):  Under federal law, including the Americans with Disabilities Act (ADA) and 
Title VII of the Civil Rights Act of 1964, some workers may be entitled to a reasonable accommodation 
from their employer, absent undue hardship.  If the worker requesting a reasonable accommodation cannot 
be vaccinated against COVID-19 and/or wear a face covering because of a disability, as defined by the 
ADA, or if the vaccination, testing, and/or wearing a face covering conflicts with the worker’s sincerely 
held religious belief, practice or observance, the worker may be entitled to a reasonable accommodation.  
For more information about evaluating requests for these types of reasonable accommodations for disability 
or sincerely held religious belief, employers should consult the Equal Employment Opportunity 
Commission’s regulations, guidance, and technical assistance including at:  
https://www.eeoc.gov/wysk/what-you-should-know-about-covid-19-and-ada-rehabilitation-act-and-other-
eeo-laws. 

with face coverings (although employer payment for face coverings may be required by 
other laws, regulations, or collective bargaining agreements or other collectively 
negotiated agreements).  However, the employer must permit the employee to wear a 
respirator instead of a face covering whether required or not. In addition, the employer 
may provide respirators or face coverings to the employee, even if not required.  In such 
circumstances, where the employer provides respirators, the employer must also comply 
with § 1910.504, Mini respiratory protection program.
OSHA estimates no costs associated with an employee voluntarily bringing in 
their own respirator to use instead of a face covering other than those costs that OSHA is 
estimating below in connection with 29 CFR 1910.501(j), information provided to 
employees.  That section provides, again, that the employer must inform each employee, 
in a language and at a literacy level the employee understands about the requirements of 
the ETS as well as any employer policies and procedures established to implement the 
ETS.  One policy the employer would need to establish to implement the ETS is a policy 
to comply with the requirements of 29 CFR 1910.504 when an employee voluntarily 
brings in their own respirator.  Those requirements require only that the employer provide 
certain information to the employee (see 29 CFR 1910.504(c)).
OSHA is also estimating no costs in connection with the employer providing 
respirators to the employee.  The ETS does not require the employer to provide 
respirators to employees.  Therefore, any such provision is voluntary and not relevant to 
economic feasibility of this rule. 
The face covering provisions in paragraph (i) contain several other requirements, 
none of which have costs associated with them.  
Cost Analysis Assumptions
In this section, OSHA estimates the cost for establishing the employer policy on 
vaccination, providing required information to employees, and rule familiarization. 

OSHA assumes each entity will require an average one-time labor burden of 1 hour of 
management labor for rule familiarization.  OSHA based this unit cost on that taken for 
rule familiarization in the Healthcare ETS (86 FR at 32496), but adjusted the time 
downward by a half-hour because this ETS is a simpler standard than the Healthcare 
ETS. 
To establish a written policy in accordance with paragraph (d) of the ETS, OSHA 
assumes a one-time average labor burden of 5 hours of manager time per firm.  OSHA 
bases this estimate on its cost estimates in the Healthcare ETS, where OSHA estimated 
that development of the COVID-19 Plan required by that standard would take between 5 
and 40 hours (see 86 FR at 32496-32497).  OSHA concludes that 5 hours is a reasonable 
estimate because the development of a written policy on vaccination will be much 
simpler than the development of the written COVID-19 Plan required by the Healthcare 
ETS (see 29 CFR 1910.502(c)).44  OSHA notes, that like the Healthcare ETS (id.), the 
cost of implementing the plan for this ETS are included in the costs of implementing the 
corresponding requirements in the ETS, which are discussed below. 
To provide information to employees in accordance with paragraph (j) of the 
ETS, OSHA assumes a one-time average labor burden per firm of 10 minutes of manager 
time. The agency expects activities like posting the information on a community board, 
mass emailing, etc., will satisfy this requirement.  
The total cost for rule familiarization, establishing an employer policy on 
vaccination and providing required information to employees is calculated as the product 
of:
44 The estimates for the time to create the written vaccine policy plan under this ETS may differ from the 
time to create the various processes under the CMS rule published elsewhere in this issue of the Federal 
Register since the requirements of what is needed to be included in the plans differ.  For example, the CMS 
plan requires a process for ensuring the implementation of additional precautions to mitigate the 
transmission and spread of COVID – 19 while OSHA’s vaccination policy requirements do not include this 
requirement.


One-time labor burden for rule familiarization and establishing a policy (a total of 
6 hours of manager time per entity) plus a one-time labor burden for providing 
information to employees (10 minutes of manager time per entity);

The labor rate for General and Operations Managers (SOC code 11-1021, 
NAICS-specific wages); and,

The total number of covered entities.
Cost for Employer Policy on Vaccination and Information Provided to Employees
Costs per entity and total costs for employer policy on vaccination and 
information provided to employees are shown below in Table IV.B.9.

Table IV.B.9. Employer Policy on Vaccination, Information Provided to Employees, and Rule 
Familiarization
NAICS 3
NAICS Description
Cost per Entity
Total Cost
All Industry 
$566 
$149,369,213
111
Crop Production
$488 
$11,567,901
112
Animal Production and Aquaculture
$488 
$12,860,228
113
Forestry and Logging
$488 
$25,852
114
Fishing, Hunting and Trapping
$488 
$3,902
115
Support Activities for Agriculture and Forestry
$502 
$128,465
211
Oil and Gas Extraction
$743 
$192,411
213
Support Activities for Mining
$638 
$349,364
221
Utilities 
$640 
$539,163
236
Construction of Buildings
$608 
$950,407
237
Heavy and Civil Engineering Construction
$629 
$1,065,167
238
Specialty Trade Contractors
$547 
$2,988,530
311
Food Manufacturing
$584 
$1,548,282
312
Beverage and Tobacco Product Manufacturing
$509 
$172,512
313
Textile Mills
$610 
$177,558
314
Textile Product Mills
$492 
$119,184
315
Apparel Manufacturing
$483 
$104,247
316
Leather and Allied Product Manufacturing
$568 
$34,070
321
Wood Product Manufacturing
$527 
$546,550
322
Paper Manufacturing
$653 
$464,645
323
Printing and Related Support Activities
$547 
$468,814
324
Petroleum and Coal Products Manufacturing
$709 
$209,068
325
Chemical Manufacturing
$763 
$1,686,303
326
Plastics and Rubber Products Manufacturing
$645 
$1,324,528
327
Nonmetallic Mineral Product Manufacturing
$669 
$699,290
331
Primary Metal Manufacturing
$667 
$610,824
332
Fabricated Metal Product Manufacturing
$601 
$2,314,763
333
Machinery Manufacturing
$701 
$1,912,094
334
Computer and Electronic Product Manufacturing
$805 
$1,372,646
335
Electrical Equipment, Appliance, and Component Manufacturing
$727 
$583,727
336
Transportation Equipment Manufacturing
$679 
$1,325,802
337
Furniture and Related Product Manufacturing
$651 
$467,981
339
Miscellaneous Manufacturing
$631 
$677,615
423
Merchant Wholesalers, Durable Goods 
$591 
$5,315,935
424
Merchant Wholesalers, Nondurable Goods 
$596 
$3,379,532
425
Wholesale Electronic Markets and Agents and Brokers 
$642 
$219,545
441
Motor Vehicle and Parts Dealers 
$609 
$2,329,166
442
Furniture and Home Furnishings Stores 
$421 
$174,541
443
Electronics and Appliance Stores 
$363 
$86,649
444
Building Material and Garden Equipment and Supplies Dealers 
$401 
$477,583
445
Food and Beverage Stores 
$346 
$667,288
446
Health and Personal Care Stores 
$396 
$262,639
447
Gasoline Stations 
$302 
$402,522
448
Clothing and Clothing Accessories Stores 
$403 
$372,696
451
Sporting Goods, Hobby, Musical Instrument, and Book Stores 
$372 
$104,434
452
General Merchandise Stores 
$443 
$62,519
453
Miscellaneous Store Retailers 
$439 
$443,175
454
Nonstore Retailers 
$596 
$862,946
481
Air Transportation
$638 
$181,108
482
Rail Transportation
$619 
$4,949
483
Water Transportation
$634 
$100,204

NAICS 3
NAICS Description
Cost per Entity
Total Cost
484
Truck Transportation
$543 
$1,409,505
485
Transit and Ground Passenger Transportation
$482 
$446,817
486
Pipeline Transportation
$524 
$69,691
487
Scenic and Sightseeing Transportation
$444 
$35,984
488
Support Activities for Transportation
$552 
$787,947
491
Postal Service
$532 
$11,952
492
Couriers and Messengers
$404 
$78,847
493
Warehousing and Storage
$543 
$1,404,418
511
Publishing Industries (except Internet)
$697 
$1,028,823
512
Motion Picture and Sound Recording Industries
$621 
$252,163
515
Broadcasting (except Internet)
$637 
$214,198
517
Telecommunications
$697 
$443,865
518
Data Processing, Hosting, and Related Services
$738 
$888,047
519
Other Information Services
$763 
$328,677
521
Monetary Authorities-Central Bank
$803 
$9,637
522
Credit Intermediation and Related Activities
$662 
$2,613,092
523
Securities, Commodity Contracts, and Other Financial Investments 
and Related Activities
$783 
$1,378,210
524
Insurance Carriers and Related Activities
$732 
$1,706,718
525
Funds, Trusts, and Other Financial Vehicles 
$804 
$25,740
531
Real Estate
$584 
$2,113,926
532
Rental and Leasing Services
$563 
$551,823
533
Lessors of Nonfinancial Intangible Assets (except Copyrighted Works)
$673 
$161,605
541
Professional, Scientific, and Technical Services
$749 
$10,849,802
551
Management of Companies and Enterprises
$750 
$13,119,146
561
Administrative and Support Services
$549 
$7,212,244
562
Waste Management and Remediation Services
$514 
$421,606
611
Educational Services
$603 
$9,181,242
624
Social Assistance
$552 
$6,952,935
711
Performing Arts, Spectator Sports, and Related Industries
$669 
$3,103,079
712
Museums, Historical Sites, and Similar Institutions
$483 
$4,805,434
713
Amusement, Gambling, and Recreation Industries
$426 
$4,419,467
721
Accommodation
$516 
$445,735
722
Food Services and Drinking Places
$484 
$188,137
811
Repair and Maintenance
$420 
$1,153,298
812
Personal and Laundry Services
$452 
$1,045,225
813
Religious, Grantmaking, Civic, Professional, and Similar 
Organizations
$379 
$4,393,360
Sources: OSHA analysis, BLS 2020 OEWS data (BLS, 2021a), BLS Employer Cost of Compensation (BLS, 2021b)

c. Determining Employee Vaccination Status.
ETS Requirements
Under § 1910.501(e):
Paragraph (e)(1).  The employer must determine the vaccination status of each 
employee. This determination must include whether the employee is fully vaccinated, 
which is 2 weeks after the full required vaccine course is completed. 
Paragraph (e)(2).  The employer must require each vaccinated employee to 
provide acceptable proof of vaccination status, including whether they are fully or 
partially vaccinated. Acceptable proof of vaccination status is:  

The record of immunization from a health care provider or pharmacy; 

A copy of the COVID-19 Vaccination Record Card

A copy of medical records documenting the vaccination; 

A copy of immunization records from a public health, state, or tribal 
immunization information system; or

A copy of any other official documentation that contains the type of vaccine 
administered, date(s) of administration, and the name of the health care 
professional(s) or clinic site(s) administering the vaccine(s).
In instances where an employee is unable to produce acceptable proof of 
vaccination, per above, a signed and dated statement by the employee, subject to criminal 
penalties for knowingly providing false information: 

Attesting to their vaccination status (fully vaccinated or partially vaccinated); and

Attesting that they have lost and are otherwise unable to produce proof required 
by the ETS.
Paragraph (e)(3).  Any employee who does not provide one of the acceptable 
forms of proof of vaccination status in paragraph (e)(2) of the ETS to the employer must 
be treated as not fully vaccinated for the purpose of the ETS. 

Paragraph (e)(4).  The employer must maintain a record of each employee’s 
vaccination status and must preserve acceptable proof of vaccination for each employee 
who is fully or partially vaccinated. The employer must maintain a roster of each 
employee’s vaccination status.  These records and roster are considered to be employee 
medical records and must be maintained as such records in accordance with 29 CFR 
1910.1020 and must not be disclosed except as required or authorized by the ETS or 
other federal law. These records and roster are not subject to the retention requirements 
of 29 CFR 1910.1020(d)(1)(i) but must be maintained and preserved while the ETS 
remains in effect.
Paragraph (e)(5).  Finally, when an employer has ascertained employee 
vaccination status prior to the effective date of this section through another form of 
attestation or proof, and retained records of that ascertainment, the employer is exempt 
from the requirements in paragraphs (e)(1) - (e)(3) only for each employee whose fully 
vaccinated status has been documented prior to the effective date of this section.  For 
purposes of paragraph (e)(4), the employer’s records of ascertainment of vaccination 
status for each such person constitute acceptable proof of vaccination.
The full costs for these provisions are taken under the costs for recordkeeping, 
discussed below, because determining vaccination status, providing acceptable proof of 
vaccination status, and creating and maintaining a roster of each employee’s vaccination 
status will be part and parcel of the recordkeeping process. 
d. Employer Support for Employee Vaccination.
ETS Requirements
Under 29 CFR 1910.501(f):
The employer must support COVID-19 vaccination by providing:  

Time for vaccination. The employer must: (i) provide a reasonable amount of 
time to each employee for each of their primary vaccination series dose(s); and 

(ii) provide up to 4 hours paid time, including travel time, at the employee’s 
regular rate of pay for this purpose.

Time for recovery. The employer must provide reasonable time and paid sick 
leave to recover from side effects experienced following any primary vaccination 
series dose to each employee for each dose.
Under the ETS, fully vaccinated means (i) a person’s status 2 weeks after 
completing primary vaccination with a COVID-19 vaccine with, if applicable, at least the 
minimum recommended interval between doses in accordance with the approval, 
authorization, or listing that is: (A) approved or authorized for emergency use by the 
FDA; (B) listed for emergency use by the World Health Organization (WHO); or (C) 
administered as part of a clinical trial at a U.S. site, if the recipient is documented to have 
primary vaccination with the “active” (not placebo) COVID-19 vaccine candidate, for 
which vaccine efficacy has been independently confirmed (e.g., by a data and safety 
monitoring board), or if the clinical trial participant from the U.S. site had received a 
COVID-19 vaccine that is neither approved nor authorized for use by FDA but is listed 
for emergency use by WHO; or (ii) a person’s status 2 weeks after receiving the second 
dose of any combination of two doses of a COVID-19 vaccine that is approved or 
authorized by the FDA, or listed as a two-dose series by the WHO (i.e., heterologous 
primary series of such vaccines, receiving doses of different COVID-19 vaccines as part 
of one primary series). The second dose of the series must not be received earlier than 17 
days (21 days with a 4-day grace period) after the first dose.
Cost Analysis Assumptions
OSHA assumes there will be no costs to employers or employees associated with 
the vaccine itself.45  However, to provide support for vaccination of employees, OSHA 
45 While there may be some administrative costs borne by the government, such costs are not germane to 
this analysis of whether the ETS is economically feasible for covered employers.

estimates that it will take an average of 15 minutes of travel time, each way, per 
employee to travel to a vaccination site (for a total of 30 minutes). OSHA then estimates 
5 minutes to wait, fill out any necessary paperwork, and receive the shot, and a post-shot 
wait time of 20 minutes, per employee. Some firms, particularly larger ones, will find it 
cheaper to have vaccines administered on site. They may have an on-site health clinic or 
may hire a 3rd party purveyor to come to the facility.46 This will minimize travel and also 
allow the companies to mitigate some of the logistical issues that may be preventing 
employees from receiving a vaccine (finding a convenient appointment time, etc.).  
OSHA estimates that 10 percent of firms with employees between 100 to 500 employees 
will select this option, while, given decreased average costs associated with economies of 
scale, 25 percent of firms with over 500 employees will select this option.  OSHA was 
unable to obtain an estimate of the cost savings associated with on-site vaccination in the 
time allotted to issue this emergency standard, so it is assuming that the costs for off-site 
vaccination are the same as the costs for on-site vaccination.  This results in a likely over-
estimate of costs given that the entities that choose the on-site option will do so as a cost-
saving measure. 
In OSHA’s cost analysis, OSHA assumes that all employees will be vaccinated 
during working hours and employers would adjust the employee work schedule to ensure 
that the employee would not become eligible for overtime pay as a result of the 
vaccination time. However, it should be noted that, if an employee chooses to receive the 
vaccine outside of work hours, OSHA does not require employers to grant paid time to 
the employee for the time spent receiving the vaccine during non-work hours (although 
other laws may include additional requirements for employers, such as those addressing 
46 Prior to the effective date of this rule, some companies offered on-site vaccination according to a limited 
survey. (Willis Towers Watson, June 23, 2021). See also CDC on creating an on-site program (CDC, 
March 25, 2021; CDC, October 4, 2021b).

reasonable accommodations or exemptions).  OSHA’s analysis may be an overestimate 
as it reflects an assumption that all vaccinations are received during work hours.
CDC data indicated that 5 percent of employees vaccinated have received the 
Johnson & Johnson vaccine, and 95 percent have received either Pfizer or Moderna 
(CDC, October 2021b). OSHA applies the same allocation to employees being 
vaccinated under the ETS. For those receiving Pfizer or Moderna, the labor burden 
outlined above occurs twice, since vaccination requires two shots. 
The employer must provide reasonable time and paid sick leave to recover from 
side effects experienced following any vaccination dose to each employee for each 
vaccination dose.  Employers may require employees to use paid sick leave benefits 
otherwise provided by the employer to offset these costs, if available. The average 
amount of time off an employee may need for side effects while receiving the vaccine 
doses necessary to achieve full vaccination (one or two doses, depending on the vaccine) 
depends on several factors. First, the percentage of people who will have side effects that 
are severe enough to require time. Second, the average time duration for those who have 
such a severe reaction. For estimates of these parameters OSHA is using a recent study 
(Levi et al., September 29, 2021) which surveyed workers at a state-wide health care 
system who had been vaccinated. The study found that, for the first dose, 4.9% needed 
administrative leave, with an average length of absence of 1.66 days. For the second 
dose, 19.79% needed leave and their average length of absence was 1.39 days. Together, 
the average time on leave is .36 days (.049 * 1.66 + .1979 * 1.39) for a person receiving 
two doses, which reflects the fact that many people who receive the vaccine do not have 
any side effects for either dose while others have more severe side effects.
In order to determine the amount of paid sick leave that would be available to 
employees, OSHA relied on data from BLS (BLS, 2021e). BLS estimates that for civilian 
workers in establishments with 100+ employees, 88% have access to paid sick leave 

(Table 33).  BLS states that the average number of paid sick leave available is 9 days 
(Table 36). Because there is the same number of days across all levels of employee tenure 
(1 year, 5 years, 10 years, and 20 years), OSHA used 9 days for all covered employees. 
The agency assumes that 75% of the available paid sick leave has been used by the 
current 4th quarter of the calendar year. So the average number of days available is 1.98 
days: 9 (days) * 88% (employees with available paid sick leave) * 25% (amount of leave 
remaining in the year) = 1.98 days available. Given that the average overall time out due 
to side effects is 0.36 days (see above), OSHA concludes that, on average, employees 
should have sufficient existing paid sick leave available to cover the time needed as a 
result of vaccine-related side effects.  As a result, OSHA is taking no costs to employers 
in connection with the ETS’s requirement to provide time for recovery from vaccination 
(except as provided below), as these costs will have been incurred by the employer 
independent of the ETS.
While this analysis is entirely consistent with OSHA’s standard procedure of 
strictly using averages in cost analysis, it nonetheless masks some significant effects 
resulting from the time for recovery requirements.  From the BLS data, OSHA knows 
there are 12% of establishments that have 100+ employees and do not provide paid sick 
leave.  Correspondingly, there is a group of entities with no paid sick leave that will 
obviously incur costs that result directly from these requirements.  In addition, some 
employees may not have, or some other entities may not offer, sufficient paid sick leave 
to cover these costs. 
To account for the 12 percent of firms that do not offer paid sick leave, the agency 
uses the above estimate of average days for two doses, 0.36 days, and multiplies the 
average employee wage by NAICS to calculate the cost per employee. Since OSHA does 
not know which firms make up the 12 percent, the agency spreads this total cost across 

all firms by employee. Since firms without any sick leave are likely to be lower-wage 
firms, this will likely lead to a cost overestimate.  
Therefore, the total cost for paid time off for vaccination is based on the costs for 
providing paid sick leave for the 12 percent of firms that do not offer paid sick leave and:

Travel time per employee of covered firms of 15 minutes each way per 
vaccination dose (total of 30 minutes).

Pre-shot wait time per employee of covered firms of 5 minutes per vaccination 
dose. 

Post-shot wait time per employee of covered firms of 20 minutes per vaccination 
dose.47 

The average labor rate for employees (NAICS-specific wages).

Total number of employees at covered firms getting vaccinated due to the ETS 
with the Johnson & Johnson vaccine.

Total number of employees at covered firms getting vaccinated due to the ETS 
with the Pfizer and Moderna vaccines, multiplied by two to account for two shots.
Cost for Support for Employee Vaccination
Costs per firm and total costs for vaccination are shown below in Table IV.B.10.
47 According to the CDC, people with allergies require a wait time of 30 minutes, but they are a small 
group, and, in any event, the CDC recommends that routine wait time is 15 minutes, so the agency 
considers that its average of 20 minutes is probably an overestimate. (See CDC, October 4, 2021a; CDC, 
March 3,2021)

Table IV.B.10. Support for Employee Vaccination
Vaccine Administration Cost
Paid-Time-Off for Vaccine Side-
Effects
Total Vaccine Cost
NAICS 
3
NAICS Description
Cost per Firm
Total Cost
Cost per Firm
Total Cost
Cost per Firm
Total Cost
All Industry 
$5,986 
$1,579,580,408
$1,256 
$331,315,843
$7,242 
$1,910,896,252 
111
Crop Production
$2,833 
$67,181,467
$575 
$13,625,126
$3,407 
$80,806,593
112
Animal Production and Aquaculture
$2,833 
$74,686,751
$575 
$15,147,279
$3,407 
$89,834,030
113
Forestry and Logging
$1,693 
$89,726
$363 
$19,244
$2,056 
$108,970
114
Fishing, Hunting and Trapping
$1,956 
$15,651
$397 
$3,174
$2,353 
$18,825
115
Support Activities for Agriculture and Forestry
$2,077 
$531,738
$433 
$110,873
$2,510 
$642,611
211
Oil and Gas Extraction
$7,219 
$1,869,832
$1,535 
$397,458
$8,754 
$2,267,290
213
Support Activities for Mining
$6,971 
$3,820,273
$1,460 
$800,110
$8,431 
$4,620,383
221
Utilities 
$16,379 
$13,788,406
$3,469 
$2,920,645
$19,849 
$16,709,050
236
Construction of Buildings
$4,536 
$7,084,919
$942 
$1,470,980
$5,478 
$8,555,899
237
Heavy and Civil Engineering Construction
$6,678 
$11,305,838
$1,386 
$2,346,673
$8,064 
$13,652,511
238
Specialty Trade Contractors
$4,219 
$23,055,535
$867 
$4,739,252
$5,086 
$27,794,787
311
Food Manufacturing
$6,615 
$17,523,367
$1,398 
$3,704,410
$8,014 
$21,227,778
312
Beverage and Tobacco Product Manufacturing
$6,108 
$2,070,576
$1,282 
$434,571
$7,390 
$2,505,147
313
Textile Mills
$3,403 
$990,312
$719 
$209,158
$4,122 
$1,199,470
314
Textile Product Mills
$3,281 
$793,931
$688 
$166,438
$3,968 
$960,370
315
Apparel Manufacturing
$2,601 
$561,851
$537 
$115,986
$3,138 
$677,836
316
Leather and Allied Product Manufacturing
$3,296 
$197,785
$693 
$41,604
$3,990 
$239,389
321
Wood Product Manufacturing
$3,348 
$3,471,552
$700 
$725,624
$4,047 
$4,197,175
322
Paper Manufacturing
$7,104 
$5,057,703
$1,503 
$1,070,265
$8,607 
$6,127,969
323
Printing and Related Support Activities
$3,552 
$3,043,852
$738 
$632,498
$4,290 
$3,676,349
324
Petroleum and Coal Products Manufacturing
$7,752 
$2,286,758
$1,664 
$490,914
$9,416 
$2,777,673
325
Chemical Manufacturing
$6,503 
$14,377,919
$1,382 
$3,055,175
$7,885 
$17,433,095
326
Plastics and Rubber Products Manufacturing
$4,617 
$9,483,784
$972 
$1,995,996
$5,589 
$11,479,780
327
Nonmetallic Mineral Product Manufacturing
$4,919 
$5,140,695
$1,038 
$1,084,668
$5,957 
$6,225,363
331
Primary Metal Manufacturing
$5,949 
$5,449,397
$1,263 
$1,156,901
$7,212 
$6,606,298
332
Fabricated Metal Product Manufacturing
$3,087 
$11,890,030
$647 
$2,493,922
$3,734 
$14,383,952
333
Machinery Manufacturing
$5,082 
$13,858,181
$1,074 
$2,929,438
$6,156 
$16,787,619
334
Computer and Electronic Product 
Manufacturing
$8,278 
$14,122,918
$1,761 
$3,004,199
$10,039 
$17,127,117
335
Electrical Equipment, Appliance, and 
Component Manufacturing
$5,709 
$4,584,456
$1,216 
$976,533
$6,925 
$5,560,988
336
Transportation Equipment Manufacturing
$13,591 
$26,542,815
$2,891 
$5,645,305
$16,481 
$32,188,120
337
Furniture and Related Product Manufacturing
$4,323 
$3,108,499
$901 
$647,680
$5,224 
$3,756,179

Vaccine Administration Cost
Paid-Time-Off for Vaccine Side-
Effects
Total Vaccine Cost
NAICS 
3
NAICS Description
Cost per Firm
Total Cost
Cost per Firm
Total Cost
Cost per Firm
Total Cost
339
Miscellaneous Manufacturing
$5,005 
$5,375,711
$1,053 
$1,131,336
$6,059 
$6,507,047
423
Merchant Wholesalers, Durable Goods 
$3,488 
$31,354,015
$731 
$6,568,296
$4,219 
$37,922,312
424
Merchant Wholesalers, Nondurable Goods 
$3,566 
$20,216,604
$746 
$4,229,315
$4,312 
$24,445,919
425
Wholesale Electronic Markets and Agents and 
Brokers 
$5,834 
$1,995,111
$1,218 
$416,506
$7,052 
$2,411,617
441
Motor Vehicle and Parts Dealers 
$4,271 
$16,339,598
$876 
$3,350,461
$5,146 
$19,690,058
442
Furniture and Home Furnishings Stores 
$7,654 
$3,176,394
$1,606 
$666,527
$9,260 
$3,842,920
443
Electronics and Appliance Stores 
$11,543 
$2,758,856
$2,401 
$573,783
$13,944 
$3,332,639
444
Building Material and Garden Equipment and 
Supplies Dealers 
$8,714 
$10,386,964
$1,805 
$2,151,828
$10,519 
$12,538,791
445
Food and Beverage Stores 
$13,183 
$25,404,044
$2,729 
$5,258,225
$15,912 
$30,662,269
446
Health and Personal Care Stores 
$14,675 
$9,729,400
$3,127 
$2,073,398
$17,802 
$11,802,798
447
Gasoline Stations 
$3,755 
$5,001,552
$780 
$1,038,480
$4,535 
$6,040,032
448
Clothing and Clothing Accessories Stores 
$17,590 
$16,253,205
$3,721 
$3,438,495
$21,311 
$19,691,700
451
Sporting Goods, Hobby, Musical Instrument, 
and Book Stores 
$12,509 
$3,515,167
$2,616 
$735,212
$15,126 
$4,250,379
452
General Merchandise Stores 
$194,153 
$27,375,523
$42,792 
$6,033,656
$236,945 
$33,409,178
453
Miscellaneous Store Retailers 
$3,878 
$3,912,708
$809 
$816,488
$4,687 
$4,729,196
454
Nonstore Retailers 
$4,046 
$5,854,060
$853 
$1,233,752
$4,898 
$7,087,812
481
Air Transportation
$42,231 
$11,993,626
$8,996 
$2,554,740
$51,227 
$14,548,366
482
Rail Transportation
$513,849 
$4,110,795
$104,214 
$833,714
$618,064 
$4,944,509
483
Water Transportation
$6,161 
$973,423
$1,310 
$207,014
$7,471 
$1,180,437
484
Truck Transportation
$5,777 
$15,002,604
$1,211 
$3,143,797
$6,987 
$18,146,401
485
Transit and Ground Passenger Transportation
$5,172 
$4,794,222
$1,073 
$994,672
$6,245 
$5,788,894
486
Pipeline Transportation
$8,133 
$1,081,664
$1,790 
$238,023
$9,922 
$1,319,688
487
Scenic and Sightseeing Transportation
$2,202 
$178,339
$461 
$37,356
$2,663 
$215,695
488
Support Activities for Transportation
$4,650 
$6,640,538
$986 
$1,407,853
$5,636 
$8,048,391
491
Postal Service
$4,781 
$107,477
$970 
$21,798
$5,750 
$129,275
492
Couriers and Messengers
$46,588 
$9,084,734
$9,694 
$1,890,395
$56,283 
$10,975,129
493
Warehousing and Storage
$4,374 
$11,305,759
$932 
$2,410,060
$5,306 
$13,715,818
511
Publishing Industries (except Internet)
$13,446 
$19,859,819
$2,820 
$4,164,965
$16,266 
$24,024,785
512
Motion Picture and Sound Recording 
Industries
$10,509 
$4,266,791
$2,189 
$888,750
$12,698 
$5,155,540
515
Broadcasting (except Internet)
$11,872 
$3,988,882
$2,499 
$839,502
$14,370 
$4,828,384
517
Telecommunications
$31,402 
$20,002,816
$6,561 
$4,179,313
$37,963 
$24,182,129
518
Data Processing, Hosting, and Related 
Services
$8,353 
$10,049,205
$1,765 
$2,123,795
$10,119 
$12,173,000
519
Other Information Services
$13,191 
$5,685,115
$2,780 
$1,198,340
$15,971 
$6,883,455

Vaccine Administration Cost
Paid-Time-Off for Vaccine Side-
Effects
Total Vaccine Cost
NAICS 
3
NAICS Description
Cost per Firm
Total Cost
Cost per Firm
Total Cost
Cost per Firm
Total Cost
521
Monetary Authorities-Central Bank
$42,411 
$508,934
$9,416 
$112,996
$51,828 
$621,930
522
Credit Intermediation and Related Activities
$10,473 
$41,368,383
$2,179 
$8,605,082
$12,652 
$49,973,465
523
Securities, Commodity Contracts, and Other 
Financial Investments and Related Activities
$6,315 
$11,120,669
$1,343 
$2,365,688
$7,658 
$13,486,357
524
Insurance Carriers and Related Activities
$11,366 
$26,517,791
$2,425 
$5,657,214
$13,791 
$32,175,005
525
Funds, Trusts, and Other Financial Vehicles 
$654 
$20,930
$139 
$4,460
$793 
$25,390
531
Real Estate
$2,973 
$10,759,172
$619 
$2,240,979
$3,592 
$13,000,151
532
Rental and Leasing Services
$5,175 
$5,071,063
$1,089 
$1,067,380
$6,264 
$6,138,444
533
Lessors of Nonfinancial Intangible Assets 
(except Copyrighted Works)
$1,568 
$376,385
$337 
$80,792
$1,905 
$457,177
541
Professional, Scientific, and Technical 
Services
$6,842 
$99,074,392
$1,436 
$20,787,377
$8,278 
$119,861,769
551
Management of Companies and Enterprises
$3,260 
$57,025,453
$690 
$12,072,397
$3,950 
$69,097,850
561
Administrative and Support Services
$8,646 
$113,587,118
$1,814 
$23,826,990
$10,459 
$137,414,108
562
Waste Management and Remediation Services
$4,972 
$4,078,939
$1,043 
$855,705
$6,015 
$4,934,643
611
Educational Services
$11,094 
$168,935,399
$2,352 
$35,821,592
$13,447 
$204,756,991
624
Social Assistance
$5,236 
$65,919,369
$1,098 
$13,828,307
$6,334 
$79,747,676
711
Performing Arts, Spectator Sports, and Related 
Industries
$31,037 
$143,960,902
$6,613 
$30,675,269
$37,651 
$174,636,171
712
Museums, Historical Sites, and Similar 
Institutions
$3,516 
$34,997,577
$728 
$7,245,346
$4,244 
$42,242,923
713
Amusement, Gambling, and Recreation 
Industries
$2,019 
$20,939,355
$418 
$4,337,995
$2,437 
$25,277,350
721
Accommodation
$5,076 
$4,380,579
$1,061 
$916,022
$6,137 
$5,296,601
722
Food Services and Drinking Places
$3,006 
$1,169,323
$619 
$240,663
$3,625 
$1,409,986
811
Repair and Maintenance
$4,237 
$11,622,911
$881 
$2,415,571
$5,118 
$14,038,483
812
Personal and Laundry Services
$6,482 
$14,985,584
$1,356 
$3,135,374
$7,838 
$18,120,958
813
Religious, Grantmaking, Civic, Professional, 
and Similar Organizations
$5,028 
$58,254,035
$1,039 
$12,043,048
$6,067 
$70,297,082
Sources: OSHA analysis, BLS 2020 OEWS data (BLS, 2021a), BLS Employer Cost of Compensation (BLS, 2021b), BLS sick leave data (BLS,  2021e), CDC COVID Data 
Tracker (CDC, October 4, 2021a), Levi et al. (September 29, 2021)

e. COVID-19 Testing for Employees who are Not Fully Vaccinated.
ETS Requirements
Section 1910.501(g)(1) of the ETS requires the employer to ensure that each 
employee who is not fully vaccinated do the following: 
An employee who reports at least once every 7 days to a workplace where other 
individuals, such as coworkers or customers, are present:

Must be tested for COVID-19 at least once every 7 days; and

Must provide documentation of the most recent COVID-19 test result to the 
employer no later than the 7th day following the date on which the employee last 
provided a test result.
An employee who does not report during a period of 7 or more days to a 
workplace where other individuals, such as coworkers or customers, are present (e.g., 
teleworking for two weeks prior to reporting to a workplace with others):

Must be tested for COVID-19 within 7 days prior to returning to the workplace; 
and 

Must provide documentation of that test result to the employer upon return to the 
workplace.
Furthermore, if an employee does not provide documentation of a COVID-19 test 
result as required by paragraph (g)(1) of the ETS, the employer must keep that employee 
removed from the workplace until they provide a test result.  In addition, when an 
employee has received a positive COVID-19 test, or has been diagnosed with COVID-19 
by a licensed healthcare provider, the employer must not require that employee to 
undergo COVID-19 testing as required under paragraph (g) of this section for 90 days 
following the date of their positive test or diagnosis.  Finally, the employer must maintain 
a record of each test result provided by each employee under paragraph (g)(1) of this 
section or obtained during tests conducted by the employer.  These records are considered 

to be employee medical records and must be maintained as such records in accordance 
with 29 CFR 1910.1020 and must not be disclosed except as required or authorized by 
this section or other federal law.  These records are not subject to the retention 
requirements of 29 CFR 1910.1020(d)(1)(i) but must be maintained and preserved while 
this section remains in effect.  
OSHA addresses the costs associated with testing in the next section.  The 
remaining costs required by paragraph (g) are taken under the costs for recordkeeping, 
discussed below, because providing documentation of test results to the employer will be 
part and parcel of the recordkeeping process. 
Employees who are partially vaccinated are also required to be tested weekly until 
they are fully vaccinated. Those receiving the J&J vaccine will require two weeks of 
testing after the single shot, employees who received the Pfizer-BioNTech Vaccine will 
require 5 weeks of testing (3 weeks between shots and 2 weeks following the second 
shot), and Moderna recipients require 6 weeks of testing (4 weeks between shots and 2 
weeks following the second shot) (CDC, October 4, 2021b).   Notwithstanding this, in the 
agency’s total cost estimate OSHA accounts for the fact that employers need not comply 
with the requirements of this section in paragraph (g) by 60 days after the rule’s effective 
date, and that employees who have completed the entire primary vaccination series by 
that date do not have to be tested, even if they have not yet completed the 2 week waiting 
period. 
There is no requirement in the rule that the employer pay for this testing so these 
testing-related costs are not included in the main analysis (although, as discussed below 
OSHA takes into account costs for testing in connection with the ETS’s recordkeeping 
requirements). The agency estimates that 6.3 million weekly tests will need to be given 
due to this ETS (see Table IV.B.8).  This 6.3 million is likely an overestimate of new 

costs because it encompasses tests for employees who were already required to conduct 
testing by their employers prior to this ETS. 
OSHA also notes that its cost estimates for testing do not take into account the 90-
day break in testing that occurs following the date of a positive test or diagnosis.  
OSHA’s cost estimates are also potentially overcounting costs in that OSHA does not 
take into account that not all employees for whom testing is required will report at least 
once every 7 days to a workplace where other individuals, such as coworkers or 
customers, are present.  Thus, OSHA’s estimate assumes that employees for whom 
testing is required will need to be tested at least once every 7 days and not less frequently 
as will often be the case.
OSHA notes, in addition, that there are no costs associated with paragraph (g)’s 
removal provision.  The ETS does not require the employer to provide paid time off to 
any employee for removal as a result of the employee’s refusal/failure to provide 
documentation of a COVID-19 test result as required by paragraph (g)(1) of the ETS.
Finally, OSHA notes that a COVID-19 test under the ETS is a test for SARS-
CoV-2 that is:  (i) Cleared, approved, or authorized, including in an Emergency Use 
Authorization (EUA), by the FDA to detect current infection with the SARS-CoV-2 virus 
(e.g., a viral test); (ii) Administered in accordance with the authorized instructions; and 
(iii) Not both self-administered and self-read unless observed by the employer or an 
authorized telehealth proctor. Examples of tests that satisfy this requirement include tests 
with specimens that are processed by a laboratory (including home or on-site collected 
specimens which are processed either individually or as pooled specimens), proctored 
over-the-counter tests, point of care tests, and tests where specimen collection and 
processing is either done or observed by an employer.  Employers may have costs 
associated with doing, observing or proctoring employee testing, if employers choose to 

do so.  However, for economic feasibility purposes, OSHA does not account for these 
costs in its estimates because they are not required for compliance with the ETS.
Costs Associated with Reasonable Accommodation: Testing, Face Coverings, and 
Determinations  
The ETS does not require the employer to pay for any costs associated with 
testing; however employer payment for testing may be required by other laws, 
regulations, or collective bargaining agreements.  Thus, while OSHA does not include 
any costs for reasonable accommodation requests in its main cost analysis in recognition 
that such costs would result from the application of other laws, OSHA notes that even if 
employers were to agree to pay for COVID-19 testing as part of a reasonable 
accommodation or some other reason required by law, such costs would not alter 
OSHA’s findings regarding the economic feasibility of the rule.48  OSHA reached this 
conclusion after conducting a separate analysis of reasonable accommodation costs that 
an employer might assume if they do not represent an undue hardship for the employer.  
This analysis is available in the docket at OSHA, October 2021d.
OSHA notes that this separate analysis is limited to employees who request 
accommodation, and accounts for costs of reviewing medical and/or religious 
accommodation requests, as well as costs for COVID-19 testing and face coverings that 
would satisfy the requirements of this ETS. OSHA expects a reasonable accommodation 
request could lead to a review of the employee’s request by a manager and then a 
conference between the manager and the employee.  OSHA concludes that the 
combination of these costs would not alter OSHA’s findings regarding the economic 
feasibility of the ETS.
48 OSHA notes that while the testing required under this standard might be an option for employees who 
request a reasonable accommodation to avoid vaccination, other alternatives such as telework would be 
more protective to the employee by preventing COVID-19 exposure.  These alternatives may also be 
available at no additional cost to the employer or employee.

f. Employee notification to employer of a positive COVID-19 test and removal.
ETS Requirements
Under § 1910.501(h):
Regardless of COVID-19 vaccination status or any COVID-19 testing required 
under paragraph (g) of the ETS, the employer must: 

Require each employee to promptly notify the employer when they receive a 
positive COVID-19 test or are diagnosed with COVID-19 by a licensed 
healthcare provider; and

Immediately remove from the workplace any employee who receives a positive 
COVID-19 test or is diagnosed with COVID-19 by a licensed healthcare provider 
and keep the employee removed until the employee: (i) receives a negative result 
on a COVID-19 nucleic acid amplification test (NAAT) following a positive 
result on a COVID-19 antigen test if the employee chooses to seek a NAAT test 
for confirmatory testing; (ii) meets the return to work criteria in CDC’s “Isolation 
Guidance” (incorporated by reference, § 1910.509); or (iii)  receives a 
recommendation to return to work from a licensed healthcare provider.
Costs Analysis Assumptions
The ETS does not require employers to provide paid time off to any employee for 
removal from the workplace as a result of a positive COVID-19 test or diagnosis of 
COVID-19; however paid time off may be required by other laws, regulations, or 
collective bargaining agreements or other collectively negotiated agreements.  Therefore, 
there are no costs associated with paragraph (h)’s removal provision.  
With respect to notification, to the extent employee notification is connected to 
the ETS’s testing and documentation requirements in paragraph (g), those costs to the 
employer are taken under the costs for recordkeeping, discussed below, because, as 

explained above, receiving documentation of test results under paragraph (g) will be part 
and parcel of the recordkeeping process.  
OSHA notes also that the costs associated with employee notification by 
vaccinated employees (not required by this ETS to undergo testing) should also be 
negligible because it will not occur with any real frequency. The very low breakthrough 
rates of infection among vaccinated persons suggests that the overwhelming majority of 
COVID-19 cases reported to a covered employer will be in the pool of unvaccinated 
employees.
g. Reporting COVID-19 fatalities and hospitalizations to OSHA.
ETS Requirements
Under § 1910.501(j): 
The employer must report to OSHA:

Each work-related COVID-19 fatality within 8 hours of the employer learning 
about the fatality.       

Each work-related COVID-19 in-patient hospitalization within 24 hours of the 
employer learning about the in-patient hospitalization.
When reporting COVID-19 fatalities and in-patient hospitalizations to OSHA in 
accordance with paragraph (j)(1) of the ETS, the employer must follow the requirements 
in 29 CFR part 1904.39, except for 29 CFR part 1904.39(a)(1) and (2) and (b)(6).
Cost Analysis Assumptions
OSHA estimates a total of 1,464 fatalities and 59,570 hospitalizations for 
employees of covered firms.49 This analysis is broadly consistent, using updated data, 
49 These counts represent hospitalizations and fatalities that would occur to the in-scope labor force despite 
the ETS. The numbers are derived using methodology similar to that used in Health Impacts to generate 
hospitalizations and fatalities prevented. An infection rate and case fatality rate are multiplied by the 
number of unvaccinated workers to derive a total number of fatalities. That number is used to derive 
hospitalizations.  The number of hospitalizations and fatalities to vaccinated employees is calculated in a 
similar fashion, but with a lower infection rate because vaccination makes it considerably less likely that an 

with OSHA’s analysis of a nearly identical provision in 29 CFR 1910.502, the Healthcare 
ETS. OSHA also estimates, based on the Healthcare ETS, that reporting of each fatality 
and hospitalization will require 45 minutes of an employer’s time (86 FR at 32516).  This 
includes hospitalizations and fatalities for employees that remain unvaccinated, as well as 
a small percentage of hospitalizations and fatalities of vaccinated employees due to 
breakthrough cases.  Because of the timing requirements in the rule, the agency assumes 
that a hospitalization followed by a death will need two reports from the employer (i.e., 
the agency assumes that reporting for hospitalizations will occur within 8 hours, before 
reporting for fatalities occurs, within 24 hours). This will result in a slight over-estimate.
The total cost for reporting COVID-19 fatalities and hospitalizations to OSHA is 
calculated as the product of:

One-time labor burden of 45 minutes per report of hospitalization or fatality. 

Wage rage for General and Operations Managers (SOC code 11-1021, NAICS-
specific wages). 

Total number of fatalities for employees at covered firms.

Total number of hospitalizations for employees at covered firms. 
Cost for Reporting COVID-19 Fatalities and Hospitalizations to OSHA
Costs per entity and total costs for vaccination are shown below in Table IV.B.11.
individual will be tested and found to be infected. See (OSHA, October 2021a and OSHA, October 2021c).  
One difference in methodology between these counts and the Health Impacts analysis is that these counts 
use a baseline of the last 19 months of CDC data to estimate the case fatality rate (similar to Alternative C 
in the Health Impacts analysis), rather than a baseline of the last 6 months (which OSHA used for the main 
Health Impacts analysis).  This results in an estimate toward the upper bound for these counts (i.e., an 
overestimate of costs).  

Table IV.B.11. Reporting COVID-19 Fatalities and Hospitalizations to OSHA
NAICS 3
NAICS Description
Cost per Entity
Total Cost
All Industry 
$16 
$4,352,190
111
Crop Production
$7 
$170,598
112
Animal Production and Aquaculture
$7 
$189,656
113
Forestry and Logging
$5 
$241
114
Fishing, Hunting and Trapping
$5 
$40
115
Support Activities for Agriculture and Forestry
$8 
$1,978
211
Oil and Gas Extraction
$14 
$3,708
213
Support Activities for Mining
$19 
$10,375
221
Utilities 
$34 
$28,342
236
Construction of Buildings
$11 
$16,845
237
Heavy and Civil Engineering Construction
$17 
$29,589
238
Specialty Trade Contractors
$10 
$55,724
311
Food Manufacturing
$25 
$66,122
312
Beverage and Tobacco Product Manufacturing
$16 
$5,541
313
Textile Mills
$13 
$3,721
314
Textile Product Mills
$11 
$2,600
315
Apparel Manufacturing
$8 
$1,713
316
Leather and Allied Product Manufacturing
$12 
$726
321
Wood Product Manufacturing
$11 
$11,315
322
Paper Manufacturing
$22 
$15,902
323
Printing and Related Support Activities
$10 
$8,923
324
Petroleum and Coal Products Manufacturing
$18 
$5,418
325
Chemical Manufacturing
$17 
$38,630
326
Plastics and Rubber Products Manufacturing
$16 
$33,463
327
Nonmetallic Mineral Product Manufacturing
$14 
$14,551
331
Primary Metal Manufacturing
$20 
$18,094
332
Fabricated Metal Product Manufacturing
$10 
$37,618
333
Machinery Manufacturing
$15 
$40,284
334
Computer and Electronic Product Manufacturing
$21 
$35,431
335
Electrical Equipment, Appliance, and Component Manufacturing
$19 
$15,232
336
Transportation Equipment Manufacturing
$40 
$77,976
337
Furniture and Related Product Manufacturing
$17 
$12,192
339
Miscellaneous Manufacturing
$15 
$15,807
423
Merchant Wholesalers, Durable Goods 
$8 
$75,973
424
Merchant Wholesalers, Nondurable Goods 
$10 
$57,962
425
Wholesale Electronic Markets and Agents and Brokers 
$13 
$4,561
441
Motor Vehicle and Parts Dealers 
$13 
$50,059
442
Furniture and Home Furnishings Stores 
$21 
$8,596
443
Electronics and Appliance Stores 
$31 
$7,320
444
Building Material and Garden Equipment and Supplies Dealers 
$25 
$29,599
445
Food and Beverage Stores 
$37 
$70,844
446
Health and Personal Care Stores 
$36 
$23,972
447
Gasoline Stations 
$11 
$13,995
448
Clothing and Clothing Accessories Stores 
$55 
$51,222
451
Sporting Goods, Hobby, Musical Instrument, and Book Stores 
$37 
$10,496
452
General Merchandise Stores 
$576 
$81,150
453
Miscellaneous Store Retailers 
$11 
$11,354
454
Nonstore Retailers 
$11 
$15,609
481
Air Transportation
$84 
$23,889
482
Rail Transportation
$1,158 
$9,261
483
Water Transportation
$17 
$2,615
484
Truck Transportation
$14 
$36,874

NAICS 3
NAICS Description
Cost per Entity
Total Cost
485
Transit and Ground Passenger Transportation
$16 
$14,828
486
Pipeline Transportation
$16 
$2,172
487
Scenic and Sightseeing Transportation
$6 
$477
488
Support Activities for Transportation
$12 
$17,088
491
Postal Service
$14 
$308
492
Couriers and Messengers
$127 
$24,809
493
Warehousing and Storage
$15 
$38,579
511
Publishing Industries (except Internet)
$25 
$36,571
512
Motion Picture and Sound Recording Industries
$24 
$9,705
515
Broadcasting (except Internet)
$27 
$9,123
517
Telecommunications
$66 
$41,891
518
Data Processing, Hosting, and Related Services
$17 
$20,702
519
Other Information Services
$27 
$11,662
521
Monetary Authorities-Central Bank
$104 
$1,249
522
Credit Intermediation and Related Activities
$25 
$99,420
523
Securities, Commodity Contracts, and Other Financial 
Investments and Related Activities
$15 
$26,869
524
Insurance Carriers and Related Activities
$30 
$69,815
525
Funds, Trusts, and Other Financial Vehicles 
$1 
$44
531
Real Estate
$7 
$25,048
532
Rental and Leasing Services
$13 
$13,025
533
Lessors of Nonfinancial Intangible Assets (except Copyrighted 
Works)
$3 
$787
541
Professional, Scientific, and Technical Services
$15 
$214,110
551
Management of Companies and Enterprises
$7 
$124,714
561
Administrative and Support Services
$29 
$383,143
562
Waste Management and Remediation Services
$13 
$10,513
611
Educational Services
$27 
$407,919
624
Social Assistance
$14 
$173,515
711
Performing Arts, Spectator Sports, and Related Industries
$103 
$476,929
712
Museums, Historical Sites, and Similar Institutions
$12 
$121,414
713
Amusement, Gambling, and Recreation Industries
$6 
$63,293
721
Accommodation
$13 
$11,382
722
Food Services and Drinking Places
$8 
$3,073
811
Repair and Maintenance
$13 
$35,392
812
Personal and Laundry Services
$25 
$56,676
Sources: OSHA analysis, BLS 2020 OEWS data (BLS, 2021a), BLS Employer Cost of Compensation (BLS, 2021b), CDC Covid 
Data Tracker (CDC, October 4, 2021a)

h. Recordkeeping.
ETS Requirements
As discussed above, the full costs for the requirements in paragraph (e) of the 
ETS are taken under the costs for recordkeeping because determining vaccination status, 
providing acceptable proof of vaccination status, and creating and maintaining a roster of 
each employee’s vaccination status will be part and parcel of the recordkeeping process.  
Under paragraph (e)(4) of the ETS, the employer must maintain a record of each 
employee’s vaccination status and must preserve acceptable proof of vaccination for each 
employee who is fully or partially vaccinated. The employer must also maintain a roster 
of each employee’s vaccination status.  These records and roster are considered to be 
employee medical records and must be maintained in accordance with 29 CFR 1910.1020 
as such records and must not be disclosed except as required or authorized by the ETS or 
other federal law. These records and roster are not subject to the retention requirements 
of 29 CFR 1910.1020(d)(1)(i) but must be maintained and preserved while the ETS 
remains in effect.
With respect to vaccination, it should be noted that, under paragraph (e)(5) of the 
ETS, when an employer has ascertained employee vaccination status prior to the effective 
date of this section through another form of attestation or proof, and retained records of 
that ascertainment, the employer is exempt from the determination of vaccination 
requirements in paragraphs (e)(1) - (e)(3) only for each employee whose fully vaccinated 
status has been documented prior to the effective date of this section.  For purposes of the 
recordkeeping requirements in paragraph (e)(4), the employer’s records of ascertainment 
of vaccination status for each such person constitute acceptable proof of vaccination.  
OSHA estimates, based on this provision, that 60% of employees who were vaccinated 
prior to the promulgation of the ETS will not need to document vaccination status in 
connection with paragraph (e) (ASU COVID-19 Diagnostic Commons, October 6, 2021).  

As also discussed above, the costs for the requirements for documenting test 
results in paragraph (g), including the timing for when recordkeeping costs for testing 
accrue under the ETS, are taken under the costs for recordkeeping because providing 
documentation of test results to the employer will be part and parcel of the recordkeeping 
process. Under paragraph (g)(4) of the ETS, the employer must maintain a record of each 
test result provided by each employee under paragraph (g)(1) of the ETS or obtained 
during tests conducted by the employer. These records must be maintained in accordance 
with 29 CFR 1910.1020 and must not be disclosed except as required or authorized by 
this section or other federal law. These records are not subject to the retention 
requirements of 29 CFR 1910.1020(d)(1)(i) but must be maintained and preserved while 
this section remains in effect.
With respect to testing, it should be noted that, under paragraph (m) of the ETS, 
employers are not required to comply with the requirements in paragraph (g) of the ETS 
until 60 days after the effective date of the ETS, meaning that for cost analysis purposes 
OSHA assumes that employers would not receive any testing records until the end of that 
60-day period.  
Finally, under paragraph 1910.501(l)(1) of the ETS, availability of records, by the 
end of the next business day after a request, the employer must make available, for 
examination and copying, the individual COVID-19 vaccine documentation and any 
COVID-19 test results for a particular employee to that employee and to anyone having 
written authorized consent of that employee.  In addition, under paragraph 1910.501(l)(2) 
of the ETS, by the end of the next business day after a request by an employee or an 
employee representative, the employer must make available to the requester the aggregate 
number of fully vaccinated employees at a workplace along with the total number of 
employees at that workplace. Under paragraph 1910.501(l)(3) of the ETS, the employer 
must also provide to the Assistant Secretary for examination and copying: (i) Within 4 

business hours of a request, the employer’s written policy required by paragraph (d) of 
the ETS, and the aggregate numbers described in paragraph (l)(2) of the ETS; and (ii) By 
the end of the next business day after a request, all other records and other documents 
required to be maintained by the ETS.  
Cost Analysis Assumptions
To fulfill the recordkeeping requirements in the ETS, OSHA estimates that it will 
take an average of 5 minutes of clerical time per employee record.  OSHA bases this cost 
estimate on the estimate for recordkeeping in the Healthcare ETS (86 FR at 32515). 
While OSHA estimated an average of 10 minutes of clerical time per employee record in 
the Healthcare ETS, that standard includes more extensive recordkeeping requirements 
than what is being required under this ETS.  See 29 CFR 1910.502(q)(2)(ii) (Healthcare 
ETS record must contain, for each instance, the employee’s name, one form of contact 
information, occupation, location where the employee worked, the date of the employee’s 
last day at the workplace, the date of the positive test for, or diagnosis of, COVID–19, 
and the date the employee first had one or more COVID–19 symptoms, if any were 
experienced). 
In addition, OSHA includes in this estimate 5 minutes of employee time to 
provide documentation of vaccination status or testing, as applicable, to the employer.  
OSHA notes that, for an employee who is vaccinated, the employer will determine the 
vaccination status of that employees and obtain acceptable proof of vaccination status at 
the same time, thus negating the need to create two separate records for these 
requirements.
OSHA notes that there will be a cost associated with setting up the recordkeeping 
system (e.g., a spreadsheet) used to comply with the ETS. OSHA takes these costs in 
connection with the costs for the employer policy on vaccination, which are described 
above.

Given the relative complexity of recordkeeping in the Healthcare ETS, OSHA has 
simplified its assumptions to reflect a variety of small costs in a combined estimate.  As 
in the Healthcare ETS, the cost estimate of 5 minutes per event is likely much higher than 
necessary to account for just the actions of receiving and maintaining copies of records, 
so retaining this time will yield a tendency toward overestimation.  However, this cost 
also reflects a margin to encompass additional outlier costs such as a second 
documentation of vaccination status for all employees who need to submit documentation 
twice (first for partial vaccination and then for full vaccination) under the ETS. This 5 
minutes for recordkeeping also encompasses the marginal time for creating and 
maintaining a roster of each employee’s vaccination status (paragraph (e)) and making 
aggregate employee data available (paragraph (l)). Since normally the system used for 
recordkeeping will be electronic in businesses with more than 100 employees, the time to 
create an aggregate report and a roster should be de minimis.  Finally, this inflated 
recordkeeping cost encompasses time for employee notification to the employer of a 
positive COVID-19 test connected to the ETS’s testing and documentation requirements 
in paragraph (g),which is a notification under paragraph (h). Finally, the burden of 
making available, for examination and copying, the individual COVID-19 vaccine 
documentation and any COVID-19 test results for a particular employee are included in 
this estimate because this documentation will normally be pulled from the electronic 
recordkeeping system described above.50
The total cost for these requirements is calculated based on:

One-time labor burden of 5 minutes of employee labor to provide documentation 
and 5 minutes of clerk labor per employee record (one record per test 
administered and one record per documentation of vaccination status). 
50 The cost of providing to the Assistant Secretary for examination and copying the employer’s written 
policy required by paragraph (d) of the ETS will be de minimis.


The average labor rate for Office Clerks, General (SOC 43-9060, NAICS-specific 
wages) and employees providing documentation (average wage over all 
employees, NAICS-specific wages)

Total number of employees at covered firms getting vaccinated due to the ETS 
with the Johnson & Johnson vaccine, who receive one shot.

Total number of employees at covered firms getting vaccinated due to the ETS 
with the Pfizer-BioNTech and Moderna vaccines, multiplied by two to account 
for two shots. 

Total number of tests for employees at covered firms who are unvaccinated and 
will get vaccinated by receiving the Johnson and Johnson vaccine.

Total number of tests for employees at covered firms who are unvaccinated and 
will get vaccinated by receiving the Pfizer and Moderna vaccines.

Total number of employees at covered firms who are unvaccinated and will be 
tested weekly. 
Cost for Recordkeeping
Costs per entity and total costs for recordkeeping are shown below in Table 
IV.B.12.

Table IV.B.12. Recordkeeping
Recordkeeping Cost (for test 
results)
Recordkeeping Cost (for 
vaccination status)
NAICS 3
NAICS Description
Cost per 
Entity
Total Cost
Cost per 
Entity
Total Cost
All Industries
$2,287 
$603,531,029
$1,187 
$313,198,683
111
Crop Production
$1,010 
$23,952,624
$529 
$12,551,553
112
Animal Production and Aquaculture
$1,010 
$26,628,530
$529 
$13,953,770
113
Forestry and Logging
$637 
$33,784
$334 
$17,710
114
Fishing, Hunting and Trapping
$698 
$5,580
$366 
$2,924
115
Support Activities for Agriculture and 
Forestry
$959 
$245,521
$503 
$128,693
211
Oil and Gas Extraction
$2,327 
$602,692
$1,220 
$315,925
213
Support Activities for Mining
$2,588 
$1,417,970
$1,357 
$743,429
221
Utilities 
$5,746 
$4,837,466
$3,012 
$2,535,854
236
Construction of Buildings
$1,615 
$2,522,966
$847 
$1,322,291
237
Heavy and Civil Engineering Construction
$2,464 
$4,170,744
$1,292 
$2,186,839
238
Specialty Trade Contractors
$1,535 
$8,386,705
$805 
$4,397,204
311
Food Manufacturing
$2,768 
$7,333,205
$1,449 
$3,838,594
312
Beverage and Tobacco Product 
Manufacturing
$2,359 
$799,570
$1,235 
$418,777
313
Textile Mills
$1,398 
$406,763
$733 
$213,207
314
Textile Product Mills
$1,360 
$329,175
$713 
$172,556
315
Apparel Manufacturing
$1,048 
$226,355
$549 
$118,656
316
Leather and Allied Product Manufacturing
$1,330 
$79,809
$696 
$41,767
321
Wood Product Manufacturing
$1,374 
$1,425,211
$720 
$747,070
322
Paper Manufacturing
$2,724 
$1,939,691
$1,428 
$1,016,731
323
Printing and Related Support Activities
$1,377 
$1,179,867
$722 
$618,513
324
Petroleum and Coal Products 
Manufacturing
$2,658 
$784,148
$1,393 
$410,822
325
Chemical Manufacturing
$2,270 
$5,018,016
$1,185 
$2,619,510
326
Plastics and Rubber Products 
Manufacturing
$1,868 
$3,835,982
$979 
$2,010,681
327
Nonmetallic Mineral Product Manufacturing
$1,790 
$1,870,975
$937 
$979,657
331
Primary Metal Manufacturing
$2,336 
$2,139,736
$1,224 
$1,121,454
332
Fabricated Metal Product Manufacturing
$1,220 
$4,699,701
$639 
$2,463,179
333
Machinery Manufacturing
$1,842 
$5,023,299
$966 
$2,633,020
334
Computer and Electronic Product 
Manufacturing
$2,822 
$4,814,766
$1,479 
$2,523,189
335
Electrical Equipment, Appliance, and 
Component Manufacturing
$2,175 
$1,746,513
$1,140 
$915,547
336
Transportation Equipment Manufacturing
$5,091 
$9,942,644
$2,669 
$5,212,394
337
Furniture and Related Product 
Manufacturing
$1,884 
$1,354,943
$988 
$710,051
339
Miscellaneous Manufacturing
$1,846 
$1,982,223
$966 
$1,038,013
423
Merchant Wholesalers, Durable Goods 
$1,232 
$11,076,712
$646 
$5,804,380
424
Merchant Wholesalers, Nondurable Goods 
$1,325 
$7,512,074
$695 
$3,937,217
425
Wholesale Electronic Markets and Agents 
and Brokers 
$1,965 
$672,177
$1,030 
$352,254
441
Motor Vehicle and Parts Dealers 
$1,625 
$6,217,834
$852 
$3,259,252
442
Furniture and Home Furnishings Stores 
$3,176 
$1,318,080
$1,665 
$690,774
443
Electronics and Appliance Stores 
$4,621 
$1,104,393
$2,423 
$579,107
444
Building Material and Garden Equipment 
and Supplies Dealers 
$3,690 
$4,398,232
$1,934 
$2,305,607
445
Food and Beverage Stores 
$6,014 
$11,589,923
$3,154 
$6,076,966
446
Health and Personal Care Stores 
$6,397 
$4,240,986
$3,224 
$2,137,542

Recordkeeping Cost (for test 
results)
Recordkeeping Cost (for 
vaccination status)
NAICS 3
NAICS Description
Cost per 
Entity
Total Cost
Cost per 
Entity
Total Cost
447
Gasoline Stations 
$1,794 
$2,390,209
$940 
$1,252,737
448
Clothing and Clothing Accessories Stores 
$7,832 
$7,236,459
$4,106 
$3,794,360
451
Sporting Goods, Hobby, Musical 
Instrument, and Book Stores 
$5,607 
$1,575,462
$2,939 
$825,970
452
General Merchandise Stores 
$82,519 
$11,635,150
$43,232 
$6,095,648
453
Miscellaneous Store Retailers 
$1,589 
$1,603,180
$833 
$840,020
454
Nonstore Retailers 
$1,454 
$2,103,588
$759 
$1,098,429
481
Air Transportation
$14,328 
$4,069,189
$7,513 
$2,133,682
482
Rail Transportation
$180,125 
$1,440,996
$94,425 
$755,399
483
Water Transportation
$2,292 
$362,197
$1,202 
$189,872
484
Truck Transportation
$2,178 
$5,657,452
$1,142 
$2,964,963
485
Transit and Ground Passenger 
Transportation
$2,187 
$2,027,722
$1,147 
$1,062,867
486
Pipeline Transportation
$2,955 
$393,080
$1,550 
$206,103
487
Scenic and Sightseeing Transportation
$896 
$72,585
$469 
$38,020
488
Support Activities for Transportation
$1,777 
$2,537,777
$931 
$1,329,808
491
Postal Service
$2,133 
$47,963
$1,119 
$25,150
492
Couriers and Messengers
$19,783 
$3,857,615
$10,373 
$2,022,803
493
Warehousing and Storage
$1,911 
$4,941,215
$1,002 
$2,589,550
511
Publishing Industries (except Internet)
$4,243 
$6,267,417
$2,225 
$3,286,111
512
Motion Picture and Sound Recording 
Industries
$3,511 
$1,425,477
$1,838 
$746,053
515
Broadcasting (except Internet)
$3,917 
$1,316,232
$2,054 
$690,064
517
Telecommunications
$10,085 
$6,424,104
$5,286 
$3,367,055
518
Data Processing, Hosting, and Related 
Services
$2,585 
$3,110,309
$1,356 
$1,630,732
519
Other Information Services
$4,234 
$1,824,667
$2,218 
$955,901
521
Monetary Authorities-Central Bank
$14,505 
$174,061
$7,606 
$91,271
522
Credit Intermediation and Related 
Activities
$3,554 
$14,037,835
$1,863 
$7,359,466
523
Securities, Commodity Contracts, and 
Other Financial Investments and Related 
Activities
$2,127 
$3,745,639
$1,113 
$1,960,350
524
Insurance Carriers and Related Activities
$3,946 
$9,206,638
$2,059 
$4,804,542
525
Funds, Trusts, and Other Financial 
Vehicles 
$213 
$6,826
$112 
$3,571
531
Real Estate
$1,021 
$3,694,899
$535 
$1,935,836
532
Rental and Leasing Services
$1,917 
$1,879,116
$1,005 
$984,414
533
Lessors of Nonfinancial Intangible Assets 
(except Copyrighted Works)
$502 
$120,581
$263 
$63,199
541
Professional, Scientific, and Technical 
Services
$2,211 
$32,018,996
$1,154 
$16,712,840
551
Management of Companies and 
Enterprises
$1,060 
$18,536,501
$554 
$9,690,931
561
Administrative and Support Services
$3,554 
$46,688,782
$1,847 
$24,263,635
562
Waste Management and Remediation 
Services
$1,888 
$1,549,394
$989 
$811,756
611
Educational Services
$3,826 
$58,254,126
$1,995 
$30,381,942
624
Social Assistance
$2,111 
$26,577,503
$1,066 
$13,427,085
711
Performing Arts, Spectator Sports, and 
Related Industries
$13,337 
$61,863,380
$6,634 
$30,769,875

Recordkeeping Cost (for test 
results)
Recordkeeping Cost (for 
vaccination status)
NAICS 3
NAICS Description
Cost per 
Entity
Total Cost
Cost per 
Entity
Total Cost
712
Museums, Historical Sites, and Similar 
Institutions
$1,611 
$16,030,837
$823 
$8,193,657
713
Amusement, Gambling, and Recreation 
Industries
$861 
$8,935,270
$450 
$4,671,160
721
Accommodation
$1,884 
$1,626,234
$985 
$850,192
722
Food Services and Drinking Places
$1,116 
$434,162
$583 
$226,973
811
Repair and Maintenance
$1,784 
$4,893,622
$931 
$2,554,214
812
Personal and Laundry Services
$3,165 
$7,318,444
$1,615 
$3,733,079
813
Religious, Grantmaking, Civic, 
Professional, and Similar Organizations
$2,452 
$28,414,270
$1,282 
$14,852,626

i. Summary of Total Cost.
Total Cost and Total Cost per Entity

Table IV.B.13. Total Costs
NAICS 3
NAICS Description
Cost per Entity
Total Cost
All
$11,298
$2,981,347,368
111
Crop Production
$5,442
$129,049,269
112
Animal Production and Aquaculture
$5,442
$143,466,214
113
Forestry and Logging
$3,520
$186,556
114
Fishing, Hunting and Trapping
$3,909
$31,272
115
Support Activities for Agriculture and Forestry
$4,482
$1,147,268
211
Oil and Gas Extraction
$13,058
$3,382,027
213
Support Activities for Mining
$13,032
$7,141,522
221
Utilities 
$29,281
$24,649,875
236
Construction of Buildings
$8,559
$13,368,408
237
Heavy and Civil Engineering Construction
$12,466
$21,104,850
238
Specialty Trade Contractors
$7,982
$43,622,949
311
Food Manufacturing
$12,840
$34,013,981
312
Beverage and Tobacco Product Manufacturing
$11,509
$3,901,548
313
Textile Mills
$6,875
$2,000,719
314
Textile Product Mills
$6,545
$1,583,885
315
Apparel Manufacturing
$5,226
$1,128,808
316
Leather and Allied Product Manufacturing
$6,596
$395,762
321
Wood Product Manufacturing
$6,680
$6,927,322
322
Paper Manufacturing
$13,434
$9,564,937
323
Printing and Related Support Activities
$6,946
$5,952,466
324
Petroleum and Coal Products Manufacturing
$14,194
$4,187,128
325
Chemical Manufacturing
$12,119
$26,795,553
326
Plastics and Rubber Products Manufacturing
$9,097
$18,684,432
327
Nonmetallic Mineral Product Manufacturing
$9,368
$9,789,836
331
Primary Metal Manufacturing
$11,459
$10,496,406
332
Fabricated Metal Product Manufacturing
$6,204
$23,899,213
333
Machinery Manufacturing
$9,680
$26,396,316
334
Computer and Electronic Product Manufacturing
$15,166
$25,873,149
335
Electrical Equipment, Appliance, and Component Manufacturing
$10,986
$8,822,008
336
Transportation Equipment Manufacturing
$24,960
$48,746,936
337
Furniture and Related Product Manufacturing
$8,764
$6,301,346
339
Miscellaneous Manufacturing
$9,516
$10,220,706
423
Merchant Wholesalers, Durable Goods 
$6,697
$60,195,312
424
Merchant Wholesalers, Nondurable Goods 
$6,938
$39,332,705
425
Wholesale Electronic Markets and Agents and Brokers 
$10,702
$3,660,154
441
Motor Vehicle and Parts Dealers 
$8,245
$31,546,370
442
Furniture and Home Furnishings Stores 
$14,542
$6,034,911
443
Electronics and Appliance Stores 
$21,381
$5,110,108
444
Building Material and Garden Equipment and Supplies Dealers 
$16,569
$19,749,811
445
Food and Beverage Stores 
$25,463
$49,067,290
446
Health and Personal Care Stores 
$27,855
$18,467,936
447
Gasoline Stations 
$7,582
$10,099,493
448
Clothing and Clothing Accessories Stores 
$33,708
$31,146,437
451
Sporting Goods, Hobby, Musical Instrument, and Book Stores 
$24,081
$6,766,742
452
General Merchandise Stores 
$363,714
$51,283,645
453
Miscellaneous Store Retailers 
$7,559
$7,626,924
454
Nonstore Retailers 
$7,718
$11,168,383
481
Air Transportation
$73,790
$20,956,234
482
Rail Transportation
$894,389
$7,155,113
483
Water Transportation
$11,616
$1,835,325
484
Truck Transportation
$10,865
$28,215,195

NAICS 3
NAICS Description
Cost per Entity
Total Cost
485
Transit and Ground Passenger Transportation
$10,077
$9,341,127
486
Pipeline Transportation
$14,968
$1,990,734
487
Scenic and Sightseeing Transportation
$4,479
$362,761
488
Support Activities for Transportation
$8,908
$12,721,011
491
Postal Service
$9,547
$214,648
492
Couriers and Messengers
$86,970
$16,959,204
493
Warehousing and Storage
$8,777
$22,689,579
511
Publishing Industries (except Internet)
$23,455
$34,643,707
512
Motion Picture and Sound Recording Industries
$18,692
$7,588,937
515
Broadcasting (except Internet)
$21,006
$7,058,001
517
Telecommunications
$54,096
$34,459,044
518
Data Processing, Hosting, and Related Services
$14,815
$17,822,789
519
Other Information Services
$23,212
$10,004,362
521
Monetary Authorities-Central Bank
$74,846
$898,148
522
Credit Intermediation and Related Activities
$18,755
$74,083,278
523
Securities, Commodity Contracts, and Other Financial 
Investments and Related Activities
$11,696
$20,597,425
524
Insurance Carriers and Related Activities
$20,558
$47,962,719
525
Funds, Trusts, and Other Financial Vehicles 
$1,924
$61,571
531
Real Estate
$5,739
$20,769,860
532
Rental and Leasing Services
$9,762
$9,566,822
533
Lessors of Nonfinancial Intangible Assets (except Copyrighted 
Works)
$3,347
$803,350
541
Professional, Scientific, and Technical Services
$12,407
$179,657,518
551
Management of Companies and Enterprises
$6,321
$110,569,142
561
Administrative and Support Services
$16,438
$215,961,913
562
Waste Management and Remediation Services
$9,419
$7,727,913
611
Educational Services
$19,897
$302,982,220
624
Social Assistance
$10,078
$126,878,714
711
Performing Arts, Spectator Sports, and Related Industries
$58,393
$270,849,435
712
Museums, Historical Sites, and Similar Institutions
$7,173
$71,394,264
713
Amusement, Gambling, and Recreation Industries
$4,181
$43,366,540
721
Accommodation
$9,537
$8,230,144
722
Food Services and Drinking Places
$5,816
$2,262,332
811
Repair and Maintenance
$8,266
$22,675,008
812
Personal and Laundry Services
$13,094
$30,274,382
813
Religious, Grantmaking, Civic, Professional, and Similar 
Organizations
$10,199
$118,160,993
Sources: OSHA analysis

j. Sensitivity Analysis.
As stated above, based on limited data on current vaccine mandate 
implementation and forecasts for future implementation (Mishra and Hartstein, August 
23, 2021; ASU COVID-19 Diagnostic Commons, October 6, 2021), OSHA estimates that 
25 percent of firms in scope currently have a vaccination mandate, and assumes that this 
will rise to 60 percent of covered employers after the ETS is in place. Because the agency 
has no historic reference on which to base its assumptions regarding vaccine mandates, 
the agency adjusted the percentage of firms that will institute a vaccine mandate because 
of the ETS as part of a sensitivity analysis.  Along with the baseline estimate of 60 
percent of firms having a mandate, the agency looked at a vaccine mandate rate of 40 
percent and 80 percent for covered firms, which OSHA judged to be a reasonable range 
based on the data available. The total costs associated with a 40 percent vaccine mandate 
are $2.998 billion, and the total costs associated with an 80 percent vaccine mandate are 
$2.964 billion. This compares to the baseline costs associated with a 60 percent vaccine 
mandate of $2.981 billion. A higher vaccine mandate increases the share of employees 
who get vaccinated while reducing the share that must get weekly testing. It is this shift 
in shares that causes the costs to change because the total costs associated with weekly 
testing (recordkeeping) are more expensive than the total costs associated with 
vaccination under the ETS (employer support for vaccination, recordkeeping).
References:
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2021)
V. ETS Economic Feasibility Determination.
a. OSHA’s Screening Tests for Economic Feasibility.
As noted in the introduction to the economic analysis, an OSHA standard is 
economically feasible when industries can absorb or pass on the costs of compliance 
without threatening industry’s long-term profitability or competitive structure, Cotton 
Dust, 452 U.S. at 530 n.55, or “threaten[ing] massive dislocation to, or imperil[ing] the 

existence of, the industry.” United Steelworkers of Am. v. Marshall (Lead I), 647 F.2d 
1189, 1272 (D.C. Cir. 1981).
To determine whether a rule is economically feasible, OSHA typically begins by 
using two screening tests to determine whether the costs of the rule are beneath the 
threshold level at which the economic feasibility of an affected industry might be 
threatened. The first screening test is a revenue test. While there is no hard and fast rule 
on which to base the threshold, OSHA generally considers a standard to be economically 
feasible for an affected industry when the annualized costs of compliance are less than 
one percent of annual revenues. The one-percent revenue threshold is intentionally set at 
a low level so that OSHA can confidently assert that the rule is economically feasible for 
industries that are below the threshold (i.e., industries for which the costs of compliance 
are less than one percent of annual revenues). To put the one-percent threshold into 
perspective, OSHA calculated the average compounded annual rate of growth or decay in 
average revenues over the 15-year period from 2002 to 2017 (inflated to 2005 to 2020 
dollars) for firms with 100 or more employees in the 479 NAICS (out of 546) industries 
covered by this ETS for which Census data were available and found that the average 
annual real rate of change in revenues in absolute terms for the average firm was 2.2 
percentage points a year.51 In other words, revenues are generally observed to change by 
well more than one percent per year, on average, for firms with 100 or more employees in 
covered industries, indicating that changes of this magnitude are normal in these 
industries and that covered firms are typically able to withstand such changes over the 
course of a year, much less six months.  As discussed below, the average percentage 
change due to this ETS for all covered NAICS is a fraction of this fluctuation in 
revenues. 
51 These results are presented in the Excel ETS Revenue Threshold Test Tables available in the Docket for 
this ETS.  The data used for six-digit NAICS were from the Bureau of the Census, available every five 
years (2002, 2007, 2012, 2107).

The second screening test that OSHA traditionally uses to consider whether a 
standard is economically feasible for an affected industry is if the costs of compliance are 
less than ten percent of annual profits (see, e.g., OSHA’s economic analysis of its Silica 
standard, 81 FR 16286, 16533 (March 25, 2016); upheld in N. Am.‘s Bldg. Trades Unions 
v. OSHA, 878 F.3d 271, 300 (D.C. Cir. 2017)). The ten-percent profit test is also intended 
to be at a sufficiently low level so as to allow OSHA to identify industries that might 
require further examination. Specifically, the profit screen is primarily used to alert 
OSHA to potential impacts on industries where the price elasticity of demand does not 
allow for ready absorption of new costs in higher prices (e.g., industries with foreign 
competition where the American firms would incur costs that their foreign competitors 
would not because they are not subject to OSHA requirements). In addition, setting the 
threshold for the profit test low permits OSHA to reasonably conclude that the rule would 
be economically feasible for industries below the threshold. To put the ten-percent profit 
threshold test into perspective, evidence used by OSHA in its 2016 OSHA silica rule 
indicates that, for the combined affected manufacturing industries in general industry and 
maritime from 2000 through 2012, the average year-to-year fluctuation in profit rates 
(both up and down) was 138.5 percent (81 FR 16545).52 
When an industry “passes” both the “cost-to-revenue” and “cost-to-profit” 
screening tests, OSHA is assured that the costs of compliance with the rule are 
economically feasible for that industry. The vast majority of the industries covered by the 
ETS fall into this category. 
A rule is not necessarily economically infeasible, however, for the industries that 
do not pass the initial revenue screening test (i.e., those for which the costs of compliance 
52 Profits are subject to the dynamics of the overall economy.  Many factors, including a national or global 
recession, a downturn in a particular industry, foreign competition, or the increased competitiveness of 
producers of close domestic substitutes are all easily capable of causing a decline in profit rates in an 
industry of well in excess of ten percent in one year or for several years in succession (See OSHA, March 
24, 2016). 

with the rule are one percent or more of annual revenues), the initial profit screening test 
(i.e, those for which the costs of compliance are ten percent or more of annual profits), or 
both. Instead, OSHA normally views those industries as requiring additional examination 
as to whether the rule would be economically feasible (see N. Am.‘s Bldg. Trades Unions 
v. OSHA, 878 F.3d at 291). OSHA therefore conducts further analysis of the industries 
that “fail” one or both of the screening tests in order to evaluate whether the rule would 
threaten the existence or competitive structure of those industries (see United 
Steelworkers of Am., AFL-CIO-CLC v. Marshall, 647 F.2d 1189, 1272 (D.C. Cir. 1980)). 
Time parameters for analysis
OSHA’s economic analyses almost always measure the costs of a standard on an 
annual basis, conducting the screening tests by measuring the cost of the standard against 
the annual profits and annual revenues for a given industry. One year is typically the 
minimum period for evaluating the status of a business; for example, most business 
filings for tax or financial purposes are annual in nature.  
Some compliance costs are up-front costs and others are spread over the duration 
of the ETS; regardless, the costs of the rule overall will not typically be incurred or 
absorbed by businesses all at once. However, OSHA does not expect that the ETS will 
require employers to incur initial capital costs for equipment to be used over many years 
(which would typically be addressed through installments over a year or a longer period 
to leverage loans or payment options to allow more time to marshal revenue and 
minimize impacts on reserves).  
The compliance costs for this ETS are for a temporary rule for a period of six 
months (which, again, is the time period that OSHA assumes this ETS will last, solely for 
economic purposes). While OSHA believes the most appropriate screens would be based 
on annual profits and revenue, it has followed the more cautious route of basing the 
screens on 6 months of profits and revenues to avoid any potential uncertainty about 

whether the ETS is economically feasible for the industries covered by this ETS.  Using 
one year of revenues and profits as the denominators in the cost-to-revenue and cost-to-
profit ratios would have resulted in ratios that are half of the estimated ratios presented in 
this analysis.  It is therefore unsurprising that businesses in some number of NAICs have 
edged above the profit-thresholds using a 6 month screen (as will be discussed later), and 
OSHA believes that edging above the screening thresholds is less of an indicator of 
economic peril in this context than in the context of a permanent rulemaking analysis.  
Nevertheless, OSHA has examined each of the NAICS that did not clear either of these 
conservative screening tests and has concluded that the ETS is economically feasible for 
each one. 
Data Used for the Screening Tests
The estimated costs of complying with the ETS, which OSHA relied upon to 
examine feasibility is based on the two tests described above (see OSHA, October 
2021a). The revenue numbers used to determine cost-to-revenue ratios were obtained 
from the 2017 Economic Census for firms with 100 or more employees in covered 
industries. This is the most current information available from this source, which OSHA 
considers to be the best available source of revenue data for U.S. businesses.53 OSHA 
adjusted these figures to 2020 dollars using the Bureau of Economic Analysis’s GDP 
deflator, which is OSHA’s standard source for inflation and deflation analysis.
The profit screening test for feasibility (i.e., the cost-to-profit ratio) was calculated 
as ETS costs divided by profits. Profits were calculated as profit rates multiplied by 
revenues. The before-tax profit rates that OSHA used were estimated using corporate 
balance sheet data from the Internal Revenue Service (IRS), 2013 Corporation Source 
Book (IRS, 2013). The IRS discontinued the publication of these data after 2013, and 
53 For information regarding the standards and practices used by the Census Bureau to ensure the quality 
and integrity of its data, see  (US Census Bureau, October 8, 2021a; US Census Bureau, October 8, 2021b).

therefore the most current years available are 2000-2013.54 The most recent version of the 
Source Book represents the best available evidence for these data on profit rates.55   
For each of the years 2000 through 2013, OSHA calculated profit rates by 
dividing the “net income” from all firms (both profitable and unprofitable) by total 
receipts from all firms (both profitable and unprofitable) for each NAICS56. OSHA then 
averaged these rates across the 14-year (2000 through 2013) period. Since some data 
provided by the IRS were not available at disaggregated levels for all industries and profit 
rates, data at more highly aggregated levels were used for some industries; that is, where 
data were not available for each six-digit NAICS code, data for the corresponding four- 
or five-digit NAICS codes were used. Data were used for all firms in the NAICS (as 
opposed to just firms with 100 or more employees) since data disaggregated by 
employment size-class were not available. Profit rates are expressed as a percentage (see 
OSHA, October 2021a). Profits themselves were used to calculate the cost-to-profit 
estimates for all firms contained in a particular NAICS code (see OSHA, October 2021a).
OSHA has estimated costs over a 6-month timeframe for this ETS. As discussed 
above, OSHA has therefore used six months of revenue to conduct the cost-to-revenue 
tests and six months of profit to conduct the cost-to-profit tests.   
General use of Revenues and Profits to Measure Economic Feasibility
As with other OSHA rulemaking efforts, the agency relies on the two screening 
tests (costs less than one percent of revenue and costs less than ten percent of profit) as an 
initial indicator of economic feasibility. OSHA has generally found that the cost-to-
54 See IRS, 2013
55 OSHA also investigated Bizminer and RMA as potential sources of profit information and determined 
that they do not represent adequate and random samples of the affected industries.  
56 There is one code reported per tax entity and it may not be representative to the six-digit level. See 
Corporation Sourcebook on limitations of the industry classification for details. (IRS, 2013).

revenue test is a more reliable indicator of feasibility simply because the revenue data are 
more accurate than the profit data.  There are several reasons for this.
First, OSHA has been using corporate balance sheet data from the IRS as the best 
available evidence for estimating corporate profits for years.57 Nevertheless, because 
firms typically have an incentive to minimize their tax burden, it is reasonable to expect 
that some of the reported accounting data may have been strategically adjusted to reduce 
reported profits and their associated tax implications. Business profits are much more 
likely to reflect such strategic accounting than business revenues; accordingly, revenues 
are a more accurate measure than profits for evaluating economic feasibility for a 
multitude of reasons.58
Second, because OSHA is using data from both profitable and unprofitable firms, 
the average profit rate for a small number of industries is negative (as described above, 
using 14 years of data that predate the pandemic). This result could have occurred 
because of the way profits are calculated, which unnaturally skews average profit rates 
downward by including firms that have large losses (negative profits) or subnormal 
profits and have already closed or are in the process of closing, irrespective of any action 
by OSHA. The negative rates could also be the result of macroeconomic fluctuations 
during the 14-year period used to determine the average, a period in which some of these 
industries may have experienced unusually adverse financial impacts (see, e.g., the 
57 OSHA funded and accepted a final report by Contractor Henry Beale (Beale Report, 2003) that reviewed 
alternative financial data sources and concluded that the IRS data were the best.  Since then OSHA has 
been relying on IRS data to provide the financial data to support its rulemaking analyses.  See, for example, 
Occupational Safety and Health Administration (OSHA) (2016), Final Economic and Regulatory 
Flexibility Analysis for OSHA's Rule on Occupational Exposure to Respirable Crystalline Silica, Chapter 
VI, pp. VI-2 to VI-3, Docket No. OSHA-2010-0034-4247 (OSHA, March 24, 2016), which includes a 
more recent review of data sources for corporate financial profit data and further support for OSHA’s 
choice of IRS data.
58 In fact, all other Department of Labor agencies rely solely on revenues to assess economic impacts, such 
as Regulatory Flexibility Act certifications, in their rulemakings (see, e.g., Employment and Training 
Administration, Final Rule on Strengthening Wage Protections for the Temporary and Permanent 
Employment of Certain Aliens in the United States, https://www.govinfo.gov/content/pkg/FR-2021-01-
14/pdf/2021-00218.pdf; Wage and Hour Division, Tip Regulations Under the Fair Labor Standards Act 
(FLSA), https://www.govinfo.gov/content/pkg/FR-2020-12-30/pdf/2020-28555.pdf).  

explanation in Chapter VI, pp. VI-20 of the Final Economic and Regulatory Flexibility 
Analysis for OSHA's Rule on Occupational Exposure to Respirable Crystalline Silica, 
Docket No. OSHA-2010-0034-4247, which notes the skew from negative impacts during 
recession years (OSHA, March 24, 2016)). Or they could result from tax-related 
incentives, as previously noted. 
Whatever the reason, the cost-to-profit calculations for NAICS with negative 
profit rates fail to provide reliable information about the long-term profitability of these 
industries, independent of the ETS. Companies and industries that consistently lose 
money do not typically stay in business, and would almost certainly not still be in 
business in 2021 if that loss continued at the same level for each of the 8 years since the 
profit data was published in 2012. Revenue streams are a more dependable measure for 
those firms because those streams tend to be more stable and more indicative of the 
actual capabilities of sustainable firms than reported negative profit margins. As a result, 
for the purposes of this analysis, OSHA has relied more heavily on its cost-to-revenue 
estimates, in lieu of cost-to-profit estimates, as the more reliable indicator for economic 
feasibility for the industries with negative profit rates. 
Third, and similarly, profit rates that are only slightly positive (i.e., less than one 
percent) are inconclusive and not useful for the purpose of OSHA’s cost-to-profit test. In 
economics terms, profit entails a reasonable rate of return on investment, and long-term 
profits of less than one percent a year are not generally reasonable for firms that expect to 
remain in business. Thus data showing industry-wide profits in this range do not measure 
the true ability of companies to pay for the ETS costs. As previously stated, revenue 
streams tend to be more stable and more indicative of the actual capabilities of 
sustainable firms. Therefore, where possible, OSHA prefers to rely on the cost-to-revenue 
test to evaluate economic feasibility for industries that have a less than one percent profit 
rate.

The qualification, and by far the most important reason for the general primacy of 
revenues versus profits as the appropriate metric for determining economic feasibility, for 
most OSHA rules, is that the regulated firms are able to pass on the costs of the rule in 
the form of higher prices.  When they cannot, the profit test functions primarily as a 
screen for a limited purpose: alerting OSHA to potential impacts where unregulated 
competitors can prevent firms from passing costs along to customers.   
To understand this point, some economic background is needed. The price 
elasticity of demand refers to the relationship between the price charged for a product or 
service and the quantity demanded for that product or service: the more elastic the 
relationship, the larger the decrease in the quantity demanded for a product when the 
price goes up. When demand is elastic, establishments have less ability to pass 
compliance costs on to customers in the form of a price increase and must absorb such 
costs in the form of reduced profits. In contrast, when demand is relatively inelastic, the 
quantity demanded for the product or service will be less affected by a change in price. In 
such cases, establishments can recover most of the variable costs of compliance (i.e., 
costs that are highly correlated with the amount of output) by raising the prices they 
charge; under this scenario, if costs are variable rather than fixed, business activity and 
profit rates are largely unchanged for small changes in costs. Ultimately, where demand 
is relatively inelastic, any impacts are primarily borne by those customers who purchase 
the relevant product or service for a slightly higher price. Most of the costs of this ETS 
are variable costs because they depend primarily on the level of production or the number 
of employees at an establishment.  For example, under the ETS, a firm with 500 
employees must determine and record the vaccination status of 500 employees, while a 

firm with 250 employees need determine and record the vaccination status of only 250 
employees.59 
In general, “[w]hen an industry is subjected to a higher cost, it does not simply 
swallow it; it  raises its price and reduces its output, and in this way shifts a part of the 
cost to its consumers and a part to its suppliers” (Am. Dental Ass’n v. Sec’y of Labor, 984 
F.2d 823, 829 (7th Cir. 1993)). A reduction in output could happen in a variety of ways: 
individual establishments could reduce their levels of service (e.g., retail firms) or 
production (e.g., manufacturing), both of which could take the form of a reduction of 
worker hours; some marginal establishments could close; or, in the case of an industry 
with high turnover of establishments, new entry could be delayed until demand equals 
supply. In many cases, a decrease in overall output for an industry will be a combination 
of all three kinds of reductions. The primary means of achieving the reduction in output 
most likely depends on the rate of turnover in the industry and on the form that the costs 
of the regulation take. Further, the temporary nature of the ETS and its associated costs 
suggests that firms may have more flexibility to respond than when facing a permanent 
increase in costs. For example, firms may be able to temporarily increase prices or 
temporarily defer planned capital expenditures or other maintenance to cover compliance 
costs.   
There are two situations typically mentioned when an industry subject to 
regulatory costs might be unable to pass those costs on:  (1) foreign competition not 
subject to the regulation, or (2) domestic competitors in other industries, not subject to 
the regulation, that produce goods or services that are close substitutes.  Otherwise, when 
all affected domestic industries are covered by a rule and foreign businesses must also 
59 While fixed cost can be more limiting in terms of options for businesses, most of the costs of this rule are 
not fixed.  Instead, most of the compliance costs vary with the level of output or employment at a facility.

comply with the rule or are unable to compete effectively, the ability of a competing 
industry to offer a substitute product or service at a lower price is greatly diminished. 
There is a third situation that is relevant to this ETS—when only some firms in a 
domestic industry (in this case, only employers with 100 or more employees) are subject 
to the ETS and its regulatory costs.  In principle, competition from smaller employers in a 
NAICS could prevent the larger employers from passing on their costs in the form of 
higher prices and instead require them to absorb the costs in the form of lost profits.  
There are, however, several important caveats:
1. As a practical matter, it is implausible to expect that covered employers (with 100 
or more employees) would feel constrained by smaller competitors in their 
industry so as not to pass on costs for a rule lasting 6 months that imposes costs 
equal to 0.02 percent of revenues, on average across all NAICS, over that time 
period (see OSHA, October 2021a).  This time period would likely be too short 
for small firms to expand to take business away from the larger firms or for new 
firms to form to take advantage of such minor and transitory business 
opportunities. Furthermore, smaller firms (particularly very small firms--those 
with fewer than 20 employees) typically can’t compete on price with large firms 
that have cost advantages due to various economies of scale; as a result, smaller 
firms often serve a specialized niche market rather than compete directly with 
larger firms. To the extent that this ETS creates new business opportunities for 
these smaller uncovered firms, they would also be covered by the ETS as soon as 
they reached 100 employees.60
2. An important factor to consider in calculating the costs and impacts and economic 
feasibility of this ETS is the unquantified and unmonetized cost savings and other 
60 This cost advantage may be exaggerated or non-existent in many cases (see the discussion directly below 
in the text in Caveat 2).

positive economic impacts accruing to employers that comply with the ETS.  
These include reduced absenteeism due to COVID-19 illnesses61 and quarantine.62   
Other positive economic impacts that compliant employers would enjoy from a 
safer business environment are increased retail trade from customers that feel less 
at risk and better relations with suppliers and other business partners. These all 
would contribute to improved business and increased profits.   
3. The existence of these cost savings and other positive economic impacts accruing 
to employers that comply with the ETS suggests that the actual net costs of the 
ETS will be much lower than the costs reported in the supporting economic 
analysis for this ETS used to estimate cost impacts and demonstrate economic 
feasibility.  In fact, for some share of covered employers, the net costs of the ETS 
may well be negative.  Indeed, this is being confirmed by revealed preference in 
the market.  Elsewhere in the economic analysis for this ETS (Cost Analysis 
section 4.2), OSHA has provided evidence to support its estimate that 25 percent 
of covered employers already voluntarily require that their employees be 
vaccinated and a much larger percentage are considering a vaccine mandate. This 
strongly supports the conclusion that these businesses agree that doing so will 
ultimately save costs. 
b. Economic Feasibility Analysis and Determination.  
61 Several occupational groups less able to avoid exposure to SARS-CoV-2 infection exhibited significantly 
higher rates of absenteeism in March-April 2020 compared to earlier periods (Groenewold et al., July 10, 
2020).
62 For a discussion of turnover (i.e. whether the ETS could affect the likelihood that an employee will 
remain with an employer, either because the imposition of a vaccine requirement will lead some employees 
to leave and find employment at an establishment not subject to the ETS, or, alternatively, to stay due to a 
preference for enhanced COVID-19 safety procedures), please see the cost section (Section III.d.) of this 
economic analysis. 

This section summarizes OSHA’s feasibility findings for industries covered by 
the ETS.  As stated previously, the agency uses two screening tests (costs less than one 
percent of revenue and costs less than ten percent of profit) as an initial indicator of 
economic feasibility. In this section, OSHA discusses the industries that fall above the 
threshold level for either screening test. 
The overall effect of compliance with the general section of the ETS on covered 
industries is very small (see OSHA, October 2021a). The vast majority of the covered 
NAICS have very low cost-to-revenue and cost-to-profit ratios, with the overall averages 
being 0.02 percent of revenues and 0.49 percent of profits.  To put this into perspective, if 
the average firm decided to raise prices to cover the costs of the ETS, the price of a $100 
product or service, for example, would have to be increased by 2 cents (during the six-
month period).  
Based on the information presented here, the costs of the ETS are below both the 
threshold revenue test (1 percent of revenues) and the threshold profit test (10 percent of 
profits) for the vast majority of NAICS industries.63 This indicates that the average firm 
in these industries will be able either to raise prices to cover ETS costs or to absorb the 
costs of the ETS out of available profits.  In either case, OSHA concludes that the ETS is 
economically feasible for all of these industries. 
Critically, there are no industries covered by the general section of the ETS that 
are above OSHA’s cost-to-revenue threshold level of one percent and most are a small 
fraction of this level.  Because OSHA is using data from both profitable and unprofitable 
firms, the average profit rate for a small number of industries is negative.  There are 14 
NAICS with negative cost-to-profit ratios, resulting from negative average profit rates. 
These industries with negative profit rates are domestic service industries that are not 
subject to international competition. 
63 By OSHA’s calculation, 524 out of the 546 six-digit NAICS covered by the ETS.

There are eight six-digit NAICS industries, covering all establishments in those 
industries covered by the general section of the ETS, with cost-to-profit ratios above 10 
percent: 
1. NAICS 221118 – Other Electric Power Generation, 23.97 percent; 
2. NAICS 488119 – Other Airport Operations, 18.41 percent; 
3. NAICS 488410 – Motor Vehicle Towing, 15.75 percent; 
4. NAICS 488490 – Other Support Activities for Road Transportation, 14.32 
percent;
5. NAICS 713920 – Skiing Facilities, 13.16 percent; and
6. NAICS 713940 – Fitness and Recreational Sports Centers, 12.33 percent;
7. NAICS 713120 – Amusement Arcades, 11.18 percent; and
8. NAICS 488320 – Marine Cargo Handling, 10.03 percent.
The average profit rate reported over the 14 years for which OSHA has profit data 
for all the NAICS affected by the ETS is 4.2 percent.  All of the eight NAICS industries 
with a cost-to-profit ratio above the 10 percent threshold report an annual profit rate 
below one percent—75 percent or more below the overall average for all NAICS covered 
by the ETS.  These eight industries all provide domestic services and are not subject to 
international competition. 
The fact that the covered firms in these 22 NAICS industries (the 14 with negative 
cost-to-profit ratios and the 8 with more sustainable cost-to-profit ratios) exceeded the 
profit screen suggests that they might in theory have difficult paying for the costs of the 
ETS out of profits gained over the six-month duration of the ETS if they had no savings 
or access to capital, but even if that were true it would be highly unlikely to place the 
firms in financial jeopardy.  OSHA examines these industries more closely below, but 
before even considering the reasons in NAICs-specific analysis it is important to consider 

the larger context.  For the ETS to threaten the economic solvency of these firms, the 
following 3 conditions must apply:
1. These firms must not enjoy certain cost savings and positive economic impacts 
from the ETS that would partially or totally offset their costs.  This condition is 
questionable because of the estimated 25 percent of employers sampled that 
reported voluntarily imposing a vaccine mandate and the substantial number more 
contemplating the voluntary adoption of such a mandate.  They can be expected to 
base their decisions, partly or entirely, on anticipated cost savings or positive 
economic impacts (which would reduce or eliminate their risk of insolvency due 
to the ETS).
2. These firms (all with 100 or more employees) must not be able to raise prices to 
cover ETS costs because of the threat that smaller firms in their NAICS industry, 
not covered by the ETS, could underprice them and take away their business.  
This condition is unlikely or limited because of the economies of scale the larger 
firms enjoy and the fact that the smaller firms out of necessity tend to serve a 
market niche not in direct competition with the larger firms.  Also, there is a 
severe limit to the extent that firms with fewer than 100 employees can take away 
significant portions of business from the larger firms without becoming subject to 
the requirements of the rule themselves.  If the larger firms do not feel threatened 
by being underpriced by smaller firms in these NAICS industries, then they could 
raise prices an average of less than 0.05 percent64 to cover the cost of the ETS—a 
small fraction of the 1.0 percent of revenues threshold (beneath which OSHA has 
determined that economic feasibility is not a concern).
64 If not underpriced by smaller firms, covered firms in the 8 NAICS industries reporting ETS costs above 
10 percent of profits could cover these costs by raising prices an average of 0.08 percent (highest, 0.11 
percent); covered firms in the 14 NAICS industries reporting negative profits could cover ETS costs with a 
price increase of 0.01 percent (highest, 0.02 percent).

3. These firms must not generate sufficient profits or have adequate borrowing 
capacity during the six months the ETS is in force to cover the costs of the ETS.  
There are several reasons to doubt that this condition broadly applies.  First, the 
estimates of business profits come from corporate balance sheet data that firms 
report to the IRS.  But, as previously noted, it is generally the case that firms have 
an incentive to minimize their tax burden, and it is reasonable to expect that some 
of the reported accounting data may have been strategically adjusted to reduce 
reported profits and their associated tax implications. Another point concerning 
the IRS data is that they include the negative profits of firms that are going out of 
business or have since gone out of business.  To the extent that these points are 
true, many or most of the covered firms in these NAICS industries (still in 
business) actually would generate sufficient profit to cover the cost of the ETS.  A 
related point is that for this condition to. apply, the firms must not be able to 
borrow the money to pay for the costs of the ETS.  Recall, however, that these are 
all large firms with 100+ employees.  It is reasonable to expect that many or most 
firms of this size in the 22 NAICS industries at issue either have available funds 
or could obtain a short-term loan to cover costs equal to the 0.01 to 0.ll percent of 
revenues that these firms would incur over the six-month period that OSHA 
assumes the ETS will remain in effect.  Firms of this size normally have banking 
relationships and some unencumbered assets.  They also have access to national 
and international capital markets. If these firms can borrow funds to pay for the 
ETS, then the profit restriction doesn’t matter. 
Finally, OSHA anticipates concern that limiting the scope of the ETS to 
employers with 100 or more employees will somehow put these larger firms in economic 
jeopardy from the smaller firms to which the ETS does not currently apply. This is highly 
improbable for several reasons discussed earlier, including the fact that these are large 

employers with advantages of economies of scale and access to capital and the fact that 
this is a temporary standard that would result, at most, in marginal impacts over 6 months 
(on average, equal to costs of 0.02 percent of revenues, which, again, translates to a cost 
increase of a penny on a fifty dollar item).    
But even that misses the main point: economic feasibility refers to the industry, 
not to the firm. OSHA must construct a reasonable estimate of compliance costs and 
demonstrate a reasonable likelihood that these costs will not threaten the existence or 
competitive structure of an industry, even if it does portend disaster for some marginal 
firms (Lead I, 647 F.2d at 1272). In the (again) highly unlikely event that individual firms 
exit an industry and are replaced by other firms in the industry, then the ETS would 
preserve the economic feasibility of the covered industries. If an employer covered by 
this standard actually had to increase its prices slightly to account for the cost of this 
standard, there are two potential groups of smaller businesses that could seek to supplant 
the covered firms.  The first group of businesses are much smaller than the covered firms.  
Those businesses, however, will typically have higher costs and prices to begin with due 
to their scale disadvantages to the larger firms.  The larger firm’s small price increases 
attributable to this ETS would not be likely to create an actionable competitive advantage 
for this group of smaller businesses.  The second group of businesses are those closer in 
size to the 100-employee cutoff.  If the marginal price increases did actually cause some 
of the larger firms to fail and the slightly smaller firms to take their place, the industry 
itself would not suffer a massive dislocation or be imperiled. And, of course, if all of the 
firms in an industry are large employers with 100 or more employees, no competitive 
disadvantage from within the industry would exist (even hypothetically), and there would 
be no question that they could cover the cost of ETS by raising prices to customers 
accordingly.

Although the preceding discussion demonstrates that the ETS is economically 
feasible, OSHA has provided an additional examination of each of the NAICS that have 
crossed the profit screen (again noting that none of these failed the revenue screen):
The eight NAICS industries with positive profit ratios but profit rates below 1 percent
1. NAICS 221118 – Other Electric Power Generation, 23.97 percent 
This U.S. industry comprises establishments primarily engaged in operating 
electric power generation facilities (except hydroelectric, fossil fuel, nuclear, solar, wind, 
geothermal, biomass). These facilities convert other forms of energy, such as tidal power, 
into electric energy. The electric energy produced in these establishments is provided to 
electric power transmission systems or to electric power distribution systems.  
Using tides to generate power is not yet economically viable, according to one 
source, because  “[t]otal availability of tidal power is restricted by its relatively high cost 
and limited number of sites having high flow velocities and tidal ranges,” although “with 
[] recent advancements in tidal technologies, the total availability of tidal power in terms 
of turbine technology as well as design may be higher than before, and the economic 
costs may be reduced significantly to competitive levels.” In support, in the same article, 
“recent reports state that the UK, which has the largest tidal and wave resource in Europe, 
is capable of harnessing up to 153GW of tidal power capacity with the help of three types 
of technologies and thus meeting 20% of current UK electricity demand and reducing 
carbon emissions. Hence it is evident that wave and tidal energy could contribute more to 
the increasing electricity demands across the globe.”65  
At the time OSHA obtained the most recent NAICS data, there were 7 affected 
entities in this NAICS industry.  The entities in this NAICS industry include firms like 
Berkshire Hathaway Energy Company, (with annual sales of $19.8 billion, whose 
“portfolio consists of locally managed business that share a vision for a secure and 
65 See Walker, January 22, 2013

sustainable energy future”); Dominion Energy (with annual sales of $13.4 billion); and 
other leading firms in this industry including some of the largest power generation 
companies in the US (See NAICS Association, 2018a; NAICS Association 2018d; and 
NAICS Association 2018e). 
As this NAICS industry is not yet viable, (in the United States, at least), it is to be 
expected that revenues and profits would be low.  In fact, OSHA believes the best way to 
view this industry is as a series of incredibly well-funded start-up companies during the 
investment phase of the business, where short-term losses are expected and offset with 
the anticipation of enormous revenue growth potential (in an acknowledged very limited 
energy market.)  Given these factors, OSHA’s typical revenue and profit screen are a 
poor predictor of future viability with respect to this NAICS industry (although, as 
pointed out, this NAICS industry, like all other NAICS industries, falls well below the 
revenue screen threshold).  The estimated cost of this ETS per firm is $866 in this NAICS 
industry, which equals about 11 cents per hundred dollars of revenue over a limited six-
month duration.  OSHA concludes that this industry will be able to withstand this small 
cost in order to keep its workers protected during the pandemic.
2. NAICS 488119 – Other Airport Operations, 18.41 percent66
The services this industry offers are integrated into a particular geographic 
location and entail specific tasks, such as parking and baggage handling services, that 
must be done to ensure the proper functioning of airports, thus negating the potential for 
substitution during the 6 month period that OSHA is assuming the ETS will be in effect 
for economic purposes.  In addition, because these are services that need to be done in 
particular domestic locations (i.e., airports), there is no risk of international competition. 
66 This U.S. industry comprises establishments primarily engaged in (1) operating international, national, or 
regional airports, or public flying fields or (2) supporting airport operations, such as rental of hangar space, 
and providing baggage handling and/or cargo handling services.

3. NAICS 488410 – Motor Vehicle Towing, 15.75 percent67
The actual cost impacts on this industry are likely significantly overstated to the 
extent that most employees performing towing services ride alone in their trucks and their 
services do not typically require exposure to others.  In the event that individual large 
towing firms are concerned about economic impacts, it would not be difficult to structure 
their employee interactions with the company and customers to take advantage of the 
scope restrictions.  Moreover, the primary services this industry offers involve the use of 
specialized vehicles designed uniquely for towing, thus lowering the risk of 
substitution.  In addition, because these services are geographically based, there is no risk 
of international competition.    
4. NAICS 488490 – Other Support Activities for Road Transportation, 14.32 
percent68
This industry offers services that must be done to ensure proper operation of 
roadways (for example, bridge, tunnel, and highway operations, pilot car services (i.e., 
wide load warning services), driving services (e.g., automobile, truck delivery), and truck 
or weighing station operations), thus negating the potential for substitution.  In addition, 
because these services need to be done in particular domestic locations (i.e., roadways), 
there is no risk of international competition.  
5. NAICS 713920 – Skiing Facilities, 13.16 percent69
67 This industry comprises establishments primarily engaged in towing light or heavy motor vehicles, both 
local and long-distance. These establishments may provide incidental services, such as storage and 
emergency road repair services.
68 This industry comprises establishments primarily engaged in providing services (except motor vehicle 
towing) to road network users. 
69 This industry comprises establishments engaged in (1) operating downhill, cross country, or related 
skiing areas and/or (2) operating equipment, such as ski lifts and tows. These establishments often provide 
food and beverage services, equipment rental services, and ski instruction services. Four season resorts 
without accommodations are included in this industry.

This industry caters to a wealthy clientele who ensure an inelastic demand easily 
capable of absorbing any fractional increases attributable to this ETS.70.  In addition, 
skiing is done outdoors, which will incentivize clientele to continue engaging in this 
particular activity in lieu of indoor substitutions, during the pandemic.  Finally, there is 
little to no risk of international competition from foreign ski resorts because the added 
and substantial costs of international travel outweigh the costs associated with marginally 
higher prices resulting from the ETS. 
6. NAICS 713940 – Fitness and Recreational Sports Centers, 12.33 percent71
As these settings are generally located close to where clients live or work, there is 
no risk of international competition.  Some of the largest employers in this industry have 
already responded to customer feedback by not only requiring employees to be 
vaccinated, but also members.72  This suggests both that the costs estimates attributed to 
the ETS are overstated for these employers because higher levels of compliance may 
have already occurred than projected in OSHA’s analysis, and that the ETS requirements 
reflect more of an industry trend than a threat to the existence of the industry.
7. NAICS 713120 – Amusement Arcades, 11.18 percent73 
This industry caters to a select clientele who have chosen to engage in leisure 
activities in the unique settings offered by the industry, thus negating the likelihood for 
70 See Brown, January 19, 2017, “[o]f the 9.4 million skiers in the U.S., more than half earn a salary higher 
than $100,000. For some context, only 20 percent of American households have a combined income of 
$100K….”)
71 This industry comprises establishments primarily engaged in operating fitness and recreational sports 
facilities featuring exercise and other active physical fitness conditioning or recreational sports activities, 
such as swimming, skating, or racquet sports.
72 See Jackson, August 2, 2021 “Equinox also noted in the press release that ‘an overwhelming majority of 
members’ have expressed support for a vaccination requirement for entry to Equinox clubs.”
73 This industry comprises establishments primarily engaged in operating amusement (except gambling, 
billiard, or pool) arcades and parlors.

substitution.  In addition, because these settings are localized, there is no risk of 
international competition.
8. NAICS 488320 – Marine Cargo Handling, 10.03 percent74
The services this industry offers are integrated into a particular location and entail 
specific tasks, such as loading and unloading services at ports and harbors, longshoremen 
services, marine cargo handling services, ship hold cleaning services, and stevedoring 
services, that must be done to ensure the proper movement of cargo off of and onto ships, 
thus negating the potential for substitution.  In addition, because these are services that 
need to be done in particular domestic locations (e.g., docks), there is no risk of 
international competition.
As with towing, the actual cost impacts on this industry are likely significantly 
overstated to the extent that some of the employees may be able to perform their work 
exclusively outdoors.  
The Fourteen NAICS Industries with Negative Profit Ratios
1. Air Transportation75
NAICS 481111 (Scheduled Passenger Air Transportation), NAICS 481112 
(Scheduled Freight Air Transportation), NAICS 481211 (Nonscheduled Chartered 
74 This industry comprises establishments primarily engaged in providing stevedoring and other marine 
cargo handling services (except warehousing).
75 NAICS 481111 (Scheduled Passenger Air Transportation) provides air transportation of passengers or 
passengers and freight over regular routes and on regular schedules, including commuter and helicopter 
carriers (except scenic and sightseeing).  NAICS 481112 (Scheduled Freight Air Transportation) provides 
air transportation of cargo without transporting passengers over regular routes and on regular schedules, 
including scheduled air transportation of mail on a contract basis.  NAICS 481211 (Nonscheduled 
Chartered Passenger Air Transportation) provides air transportation of passengers or passengers and cargo 
with no regular routes and regular schedules.  NAICS 481212 (Nonscheduled Chartered Freight Air 
Transportation) provides air transportation of cargo without transporting passengers with no regular routes 
and regular schedules. NAICS 481219 (Other Nonscheduled Air Transportation) provides air transportation 
with no regular routes and regular schedules (except nonscheduled chartered passenger and/or cargo air 
transportation). These establishments provide a variety of specialty air transportation or flying services 
based on individual customer needs using general purpose aircraft.

Passenger Air Transportation), NAICS 481212 (Nonscheduled Chartered Freight Air 
Transportation), NAICS 481219 (Other Nonscheduled Air Transportation).  
This group of NAICS industries is comprised of U.S. industries that primarily 
engage in providing air transportation.  There is little to no risk of substitution for this 
group of NAICS industries.  Air transportation provides unique and important benefits 
that cannot be substituted via other forms of transportation (e.g., rail, freight, bus). (See 
ATAG, September 2005). To this end, air transportation is often the speediest means of 
transporting passengers and cargo, giving it a unique purpose that cannot be met by other 
forms of transport.  It should be noted that the five NAICS in this group of industries are 
the only NAICS in NAICS 4811 (Scheduled Air Transportation) and 4812 
(Nonscheduled Air Transportation).  The other industries in NAICS 48 (Transportation) 
do not provide air transportation (See NAICS Association, 2018b).  This further reduces 
the risk of substitution, as all five NAICS at issue have a negative profit ratio and 
therefore face similar challenges that appear to be endemic to air transportation. Firms in 
this industry that have been able to weather the pandemic this long are typically highly 
capitalized or have access to loans, so it is highly likely that they could also weather the 
temporary marginal costs of OSHA’s ETS.  
There is also no risk of international competition with respect to this group of 
NAICS industries because any workers, whether they work for an international company 
or not, who are in the US, are subject to US laws, including the ETS, and foreign air 
carriers will need to follow the ETS for those workers.  In addition, OSHA suspects that 
any smaller foreign air carriers will not have an incentive to expand their routes 
significantly or change their routes to domestic US routes to take advantage of the 100-
employee cutoff in the ETS in the 6-months the ETS is assumed to be in effect. 

2. Telecommunications76
NAICS 517311 (Wired Telecommunications Carriers), NAICS 517312 (Wireless 
Telecommunications Carriers (except Satellite), NAICS 517410 (Satellite 
Telecommunications), NAICS 517911 (Telecommunications Resellers), NAICS 517919 
(All Other Telecommunications).
This group of NAICS industries is entirely comprised of U.S. industries, except 
for NAICS 517410 (Satellite Telecommunications).  All of these industries provide 
specialized unique services in the telecommunications industry that require specialized 
unique knowledge and are thus resistant to substitution.  While it is perhaps possible that 
different forms of telecommunications might be substituted for one another (e.g., the 
substitution of wired telecommunications carriers for wireless telecommunications 
carriers), the reality is that these different forms exist separately and feed different 
markets and customer needs that are independent of the ETS.  Moreover, the five NAICS 
in this group of industries are the only NAICS in NAICS 5173 (Wired and Wireless 
76 NAICS 517311 (Wired Telecommunications Carriers) comprises establishments primarily engaged in 
operating and/or providing access to transmission facilities and infrastructure that they own and/or lease for 
the transmission of voice, data, text, sound, and video using wired telecommunications networks. 
Establishments in this industry use the wired telecommunications network facilities that they operate to 
provide a variety of services, such as wired telephony services, including VoIP services; wired (cable) 
audio and video programming distribution; wired broadband Internet services; and, by exception, 
establishments providing satellite television distribution services using facilities and infrastructure that they 
operate are included in this industry.  NAICS 517312 (Wireless Telecommunications Carriers (except 
Satellite)) comprises establishments primarily engaged in operating and maintaining switching and 
transmission facilities to provide communications via the airwaves. Establishments in this industry have 
spectrum licenses and provide services using that spectrum, such as cellular phone services, paging 
services, wireless Internet access, and wireless video services.  NAICS 517410 (Satellite 
Telecommunications) comprises establishments primarily engaged in providing telecommunications 
services to other establishments in the telecommunications and broadcasting industries by forwarding and 
receiving communications signals via a system of satellites or reselling satellite telecommunications.  
NAICS 517911 (Telecommunications Resellers) comprises establishments engaged in purchasing access 
and network capacity from owners and operators of telecommunications networks and reselling wired and 
wireless telecommunications services (except satellite) to businesses and households. Establishments in this 
industry resell telecommunications; they do not operate transmission facilities and infrastructure.  NAICS 
517919 (All Other Telecommunications) comprises establishments primarily engaged in providing 
specialized telecommunications services, such as satellite tracking, communications telemetry, and radar 
station operation, and also includes establishments primarily engaged in providing satellite terminal stations 
and associated facilities connected with one or more terrestrial systems and capable of transmitting 
telecommunications to, and receiving telecommunications from, satellite systems, as well as establishments 
providing Internet services or Voice over Internet protocol (VoIP) services via client-supplied 
telecommunications connections.  

Telecommunications Carriers), NAICS 5174 (Satellite Telecommunications), and NAICS 
5179 (Other Telecommunications).  The other industries in NAICS 51 (Information) are 
not engaged in telecommunications (NAICS Association, 2018c).  This further reduces 
the risk of one industry substituting for the others, as all five NAICS at issue have a 
negative profit ratio and therefore face similar challenges that appear to be endemic to 
telecommunications.
Moreover, three of the five NAICS industries in this group (NAICS 517311, 
517312, 517410) operate or control the infrastructure needed for engaging in the 
particular type of telecommunications in which those industries engage.  This not only 
fully negates the risk of substitution, but also negates the risk of international competition 
for these industries.  
The other two industries in the group apparently do not operate or control the 
infrastructure needed for telecommunications.  However, the telecommunications 
industry faces strict state and federal licensing requirements, which severely limit the risk 
of competition both internationally and from smaller firms seeking to take advantage of 
the ETS’s 100-employee cutoff. (See FCC, 2014; FCC, October 12, 2021a; FCC, October 
12, 2021b; Caltrans, October 12, 2021; and UTC, October 12, 2021).
3. Car and Equipment Rental77
77 NAICS 532111 (Passenger Car Rental) comprises establishments primarily engaged in renting passenger 
cars without drivers, generally for short periods of time.  NAICS 532112 (Passenger Car Leasing) 
comprises establishments primarily engaged in leasing passenger cars without drivers, generally for long 
periods of time.  NAICS 532120 (Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing 
comprises establishments primarily engaged in renting or leasing, without drivers, one or more of the 
following: trucks, truck tractors, buses, semi-trailers, utility trailers, or RVs (recreational vehicles).  NAICS 
532310 (General Rental Centers) comprises establishments primarily engaged in renting a range of 
consumer, commercial, and industrial equipment. Establishments in this industry typically operate from 
conveniently located facilities where they maintain inventories of goods and equipment that they rent for 
short periods of time. The type of equipment that establishments in this industry provide often includes, but 
is not limited to: audio visual equipment, contractors' and builders' tools and equipment, home repair tools, 
lawn and garden equipment, moving equipment and supplies, and party and banquet equipment and 
supplies.

NAICS 532111 (Passenger Car Rental), NAICS 532112 (Passenger Car Leasing), 
NAICS 532120 (Truck, Utility Trailer), and RV (Recreational Vehicle) Rental and 
Leasing) NAICS 532310 (General Rental Centers).
This group of industries rent motor vehicles (NAICS 532111, 532112, 532120) or 
equipment (NAICS 532310), for example, audio visual equipment, contractors' and 
builders' tools and equipment, home repair tools, lawn and garden equipment, moving 
equipment and supplies, and party and banquet equipment and supplies, to individuals 
and businesses, for personal and professional use.  There is no risk of substitution with 
respect to these industries, as these industries rent specific items to those who want to use 
them.  There is also no risk of foreign competition with respect to these industries, as 
consumers and businesses rent and pick up vehicles, as well as the type of equipment 
offered for rent by NAICS 532310, from specific locations, including car rental and other 
rental centers.  
These industries have not been hard hit by the pandemic, as many consumers have 
turned from group travel to individual transportation. For example, RV rentals and 
leasing has soared during the pandemic, which is not reflected in the pre-pandemic profit 
and revenue data available for this analysis.78
References:
Air Transport Action Group (ATAG). (2005, September). The economic & social 
benefits of air transport. 
https://www.icao.int/meetings/wrdss2011/documents/jointworkshop2005/atag_socialbene
fitsairtransport.pdf. (ATAG, September 2005) 
Beale HBR. (2003). Financial Data Sources. Microeconomic Applications Inc. (Beale 
Report, 2003) 
Brown J. (2017, January 19). Bring More Diversity to Skiing. 
https://www.powder.com/stories/opinion/extend-the-family/. (Brown, January 19, 2017) 
Caltrans. (2021, October 12). Wireless Licensing Program, California Department of 
Transportation. https://dot.ca.gov/programs/right-of-way/wireless-licensing-program. 
(Caltrans, October 12, 2021)
78 See Park, January 23, 2021

Federal Communications Commission (FCC). (2021, October 12a) Licensing. 
https://www.fcc.gov/licensing-databases/licensing. (FCC, October 12, 2021a) 
Federal Communications Commission (FCC). (2021, October 12b) Satellite. 
https://www.fcc.gov/general/satellite. (FCC, October 12, 2021b) 
Groenewold M et al., (2020, July 10). Increases in Health-Related Workplace 
Absenteeism Among Workers in Essential Critical Infrastructure Occupations During the 
COVID-19 Pandemic — United States, March–April 2020. Centers for Disease Control 
and Prevention MMWR Vol. 69, No. 27. (Groenewold et al., July 10, 2020)
Internal Revenue Service (IRS). (2013). 2013 Corporation Source Book. 
https://www.irs.gov/statistics/soi-tax-stats-corporation-source-book-us-total-and-sectors-
listing. (IRS, 2013)
Jackson S. (2021, August 2). Gyms like Equinox and SoulCycle will soon require 
members to show proof of vaccination to use their clubs and studios. 
https://www.businessinsider.com/equinox-soulcycle-will-require-covid-19-vaccines-for-
members-staff-2021-8. (Jackson, August 2, 2021) 
NAICS Association. (2018a). NAICS Codes Description, 2018: 221118 – Other Electric 
Power Generation. https://www.naics.com/naics-code-description/?code=221118. Last 
accessed October 12, 2021. (NAICS Association, 2018a) 
NAICS Association. (2018b). Six Digit NAICS Codes and Titles, 2018: Codes 48-49. 
https://www.naics.com/six-digit-naics/?code=48-49. Last accessed October 12, 2021. 
(NAICS Association, 2018b)
NAICS Association. (2018c). Six Digit NAICS Codes and Titles, 2018: Code 51. 
https://www.naics.com/six-digit-naics/?code=51. Last accessed October 12, 2021. 
(NAICS Association, 2018c)
NAICS Association. (2018d). NAICS Profile Page, 2018: Berkshire Hathaway Energy 
Co. https://www.naics.com/company-profile-page/?co=4973. Last accessed October 12, 
2021. (NAICS Association, 2018d)
NAICS Association. (2018e). NAICS Profile Page, 2018: Dominion Energy Inc. 
https://www.naics.com/company-profile-page/?co=11715. Last accessed October 12, 
2021. (NAICS Association, 2018e) 
Occupational Safety and Health Administration (OSHA). (2016, March 24). Final 
Economic and Regulatory Flexibility Analysis for OSHA's Rule on Occupational 
Exposure to Respirable Crystalline Silica, Chapter VI, pp. VI-20. Docket No. OSHA-
2010-0034-4247. (OSHA, March 24, 2016)
Occupational Safety and Health Administration (OSHA). (2021a, October). Analytical 
Spreadsheets in Support of the COVID-19 Vaccination and Testing ETS. (OSHA, 
October 2021a)

Park S. (2021, January 23). RV sales soar during coronavirus pandemic. 
https://www.foxbusiness.com/lifestyle/rv-sales-soar-during-pandemic-travel-road-trip. 
(Park, January 23, 2021) 
U.S. Census Bureau. (2021, October 8a). Scientific Integrity. 
https://www.census.gov/about/policies/quality/scientific_integrity.html. (US Census 
Bureau, October 8, 2021a) 
U.S. Census Bureau. (2021, October 8b). Statement of Commitment to Scientific 
Integrity by Principal Statistical Agencies. 
https://www.census.gov/content/dam/Census/about/about-the-
bureau/policies_and_notices/scientificintegrity/Scientific_Integrity_Statement_of_the_Pri
ncipal_Statistical_Agencies.pdf. (US Census Bureau, October 8, 2021b) 
Walker C. (2013, January 22). Is Tidal Power a Viable Source of Energy? 
https://www.azocleantech.com/article.aspx?ArticleID=350. (Walker, January 22, 2013) 
Washington Utilities and Transportation Commission (UTC). (2021, October 12). 
Eligible Telecommunications Carriers. https://www.utc.wa.gov/regulated-
industries/utilities/telecommunications/federal-universal-service-funds/eligible-
telecommunications-carriers. (UTC, October 12, 2021) 
V. Additional Requirements
A. Regulatory Flexibility Act
Whenever an agency is required by the Administrative Procedure Act, 5 U.S.C. 
553, or another law, to publish a general notice of proposed rulemaking, the Regulatory 
Flexibility Act (RFA), 5 U.S.C. 601 et seq., requires the agency to prepare an initial 
regulatory flexibility analysis (IRFA). 5 U.S.C. 601(2), 603(a). Since this ETS “shall 
serve as a proposed rule” for a final standard under section 6(c)(3) of the OSH Act, it is 
treated as a general notice of proposed rulemaking under the RFA. An agency may waive 
or defer the IRFA in the event a rule is promulgated in response to an emergency that 
makes compliance with the requirements of section 603 impracticable. 5 U.S.C. 608(a). 
The agency hereby certifies that compliance with the IRFA requirement is impracticable 
under the circumstances. OSHA prepared this ETS on an expedited basis in response to a 
national emergency affecting the lives and health of the nation's workers; the IRFA is 
inherently a relatively lengthy process that would be impracticable to undertake for a 
standard of such broad applicability in the limited time available. Because OSHA is not 

preparing an IRFA for the ETS, the agency is also not required to convene a small entity 
panel under section 609(b).
B. Unfunded Mandates Reform Act (UMRA), 2 U.S.C. 1501 et seq.
Section 202 of the Unfunded Mandates Reform Act of 1995 (UMRA), 2 U.S.C. 
1532, requires agencies to assess the anticipated costs and benefits of a rule before 
issuing “any general notice of proposed rulemaking” that includes a Federal mandate that 
may result in expenditures in any one year by state, local, or Tribal governments, or by 
the private sector, of at least $100 million, adjusted annually for inflation. The assessment 
requirement also applies to “any final rule for which a general notice of proposed 
rulemaking was published.” Although no general notice of proposed rulemaking was 
published, the agency has analyzed the ETS's economic feasibility and health impacts in 
Section IV.B. of this preamble (Economic Analysis) and Health Impacts Appendix 
(OSHA, October 2021c).
C. Executive Order 13175
Section 5 of E.O. 13175, on Consultation and Coordination with Indian Tribal 
Governments, requires agencies to consult with tribal officials early in the process of 
developing regulations that: (1) Have tribal implications, that impose substantial direct 
compliance costs on Indian governments, and that are not required by statute; or (2) have 
tribal implications and preempt tribal law. 65 FR 67249, 67250 (Nov. 6, 2000). E.O. 
13175 requires that such consultation occur to the extent practicable. Given the expedited 
nature of issuing the ETS, it was not practicable for OSHA to consult and incorporate 
non-federal input prior to promulgation of the standard. OSHA commits to meaningful 
consultation with tribal representatives after publication of the ETS and during the 
comment period before finalizing any permanent standard. Such consultation will be 
consistent with the Administrative Procedure Act.
D. National Environmental Policy Act

OSHA has reviewed this ETS according to the National Environmental Policy 
Act (NEPA) of 1969, 42 U.S.C. 4321 et seq., the regulations of the Council on 
Environmental Quality, 40 CFR chapter V, subchapter A, and the Department of Labor's 
NEPA procedures, 29 CFR part 11. As a result of this review, the agency has determined 
that the rule will have no significant impact on air, water, or soil quality; plant or animal 
life; the use of land; or other aspects of the external environment. Although the ETS 
contains testing requirements, and test kits and supplies can generate some additional 
materials that will enter the waste stream, the impact of this ETS will be minimal. As 
discussed in more detail in Technological Feasibility (Section IV.A. of this preamble), 
there is already a surplus of available tests, and projected production of COVID-19 tests 
will be more than sufficient to meet demands for testing created as a result of the rule. 
Therefore, tests used for purposes of or for compliance with this ETS are not being 
produced as a result of this standard, and the standard will not generate significant new 
streams of waste beyond what would be generated in the absence of the standard.
E. Congressional Review Act
This ETS is considered a major rule under the Congressional Review Act (CRA), 
5 U.S.C. 801 et seq. Section 801(a)(3) of the CRA normally requires a 60-day delay in 
the effective date of a major rule. 5 U.S.C. 801(a)(3), 804(2). However, section 808(2) of 
the CRA allows the issuing agency to make a rule effective sooner than otherwise 
provided by the CRA if the agency makes a good cause finding that notice and public 
procedure are impracticable, unnecessary, or contrary to the public interest. 5 U.S.C. 
808(2). OSHA finds that there is good cause to make this rule effective upon publication 
because notice and public procedure with respect to this ETS are both impracticable and 
contrary to the public interest, given the expedited timeline on which this standard was 
developed and the grave danger threatening workers' lives and health (see Grave Danger 
and Need for the ETS, both in Section III. of this preamble). Congress authorized OSHA 

to take swift action in promulgating an ETS to address this type of grave danger, and 
provided explicitly that an ETS is effective upon publication, 29 U.S.C. 655(c)(1); 
delaying the effective date of such an expedited process would thwart that purpose. It is 
specifically because of the emergency nature of this rulemaking that the OSH Act allows 
for OSHA to proceed without the extensive public input the agency normally solicits in 
issuing occupational safety and health standards. 29 U.S.C. 655(c)(1). For rules to which 
section 808(2) applies, the agency may set the effective date. In this case, consistent with 
the OSH Act requirement cited above, the ETS takes immediate effect upon publication 
in the Federal Register.
F. Administrative Procedure Act
The Administrative Procedure Act (APA) normally requires notice and comment, 
and a 30-day delay of the effective date of a final rule, for recordkeeping and reporting 
regulations promulgated under section 8(c) of the OSH Act. 29 U.S.C. 657(c); 5 U.S.C. 
553(b), (d). This ETS contains recordkeeping and reporting requirements tailored to 
address COVID-19 illness. To the extent that these requirements are not already exempt 
from the APA’s requirements for notice and comment under section 6(c) of the Act (29 
U.S.C. 655(c)), OSHA invokes the “good cause” exemption to the APA’s notice 
requirement because the agency finds that notice and public procedure are impracticable 
and contrary to the public interest under 5 U.S.C. 553(b)(B). As explained in more detail 
in Grave Danger and Need for the ETS (both in Section III. of this preamble), this finding 
is based on the critical importance of implementing the requirements in this ETS, 
including the recordkeeping and reporting provisions, as soon as possible to address the 
grave danger that COVID-19 presents to workers. 
As noted above, the ETS is required by the OSH Act to take immediate effect 
upon publication. 29 U.S.C. 655(c)(1). For that reason, and the underlying public health 
emergency that prompted this ETS as discussed above, OSHA finds good cause to waive 

the normal 30-day delay in the effective date of a final rule from the date of its 
publication in the Federal Register. See 5 U.S.C. 553(d)(3).   OSHA notes, however, that 
OSHA does not require compliance with any provision of the ETS within the first 30 
days after it becomes effective.
G. Consensus Standards
OSHA must consider adopting an existing national consensus standard that differs 
substantially from OSHA's standard if the consensus standard would better effectuate the 
purposes of the Act. See section 12(d)(1) of the National Technology Transfer and 
Advancement Act of 1995 (15 U.S.C.A. 272 Note); see also 29 U.S.C. 655(b)(8). 
OSHA considered incorporation of ASTM F3502–21 in this ETS, as required. 
However, the agency has insufficient evidence to make a general finding of feasibility at 
this time.  The agency notes that face coverings that meet ASTM F3502-21 criteria also 
meet the definition of “face coverings” in this ETS (see the discussion of this issue in 
Summary and Explanation, Section VI. of this preamble).  The agency has asked 
questions about this topic to gather additional information.
H. Executive Order 13045
Executive Order 13045, on Protection of Children from Environmental Health 
Risks and Safety Risks, requires that Federal agencies submitting covered regulatory 
actions to OIRA for review pursuant to Executive Order 12866 must provide OIRA with 
(1) an evaluation of the environmental health or safety effects that the planned regulation 
may have on children, and (2) an explanation of why the planned regulation is preferable 
to other potentially effective and reasonably feasible alternatives considered by the 
agency (62 FR 19885 (April 23, 1997)). Executive Order 13045 defines “covered 
regulatory actions” as rules that may (1) be economically significant under Executive 
Order 12866, and (2) concern an environmental health risk or safety risk that an agency 
has reason to believe may disproportionately affect children. Because OSHA has no 

reason to believe that the risk from COVID-19 disproportionately affects children, the 
ETS is not a covered regulatory action and OSHA is not required to provide OIRA with 
further analysis under section 5 of the executive order. However, to the extent children 
are exposed to COVID-19 either as employees or at home as a result of family members' 
workplace exposures to COVID-19, the ETS should provide some protection for 
children.
I. Federalism
The agency reviewed this ETS according to Executive Order 13132, on 
Federalism, which requires that Federal agencies, to the extent possible, refrain from 
limiting State policy options, consult with States before taking actions that would restrict 
States' policy options, and take such actions only when clear constitutional authority 
exists and the problem is of national scope. 64 FR 43255 (August 10, 1999). The 
Executive Order generally allows Federal agencies to preempt State law only as provided 
by Congress or where State law conflicts with Federal law. In such cases, Federal 
agencies must limit preemption of State law to the extent possible.
The Occupational Safety and Health Act is an exercise of Congress's Commerce 
Clause authority, and under Section 18 of the Act, 29 U.S.C. 667, Congress expressly 
provided that States may adopt, with Federal approval, a plan for the development and 
enforcement of occupational safety and health standards. OSHA refers to States that 
obtain Federal approval for such plans as “State Plans.” Occupational safety and health 
standards developed by State Plans must be at least as effective in providing safe and 
healthful employment and places of employment as the Federal standards. As discussed 
below, State Plans must submit to Federal OSHA for approval, standards that differ from 
Federal standards addressing the same issues, in order for such standards to become part 
of the OSHA-approved State Plan. Subject to these requirements, State Plans are free to 
develop and enforce their own occupational safety and health standards.

This ETS complies with E.O. 13132. The problems addressed by this ETS for 
COVID-19 are national in scope. As explained in Grave Danger (Section III.A. of this 
preamble), employees face a grave danger from exposure to COVID-19 in the workplace. 
Employees across the country face the danger of exposure to COVID-19 at work, and as 
explained in Need for the ETS (Section III.B. of this preamble), a national standard is 
needed to protect workers from the grave danger of COVID-19 by strongly encouraging 
vaccination and limiting the presence of COVID-19 positive workers in the workplace 
through testing and to ensure that a clear and consistent baseline approach is taken across 
the country to protect them. The SARS-CoV-2 virus is highly communicable and infects 
workers without regard to state borders, making a national approach necessary. 
Accordingly, the ETS establishes minimum requirements for employers in every State to 
protect employees from the risks of exposure to COVID-19. 
In States without OSHA-approved State Plans, Congress provides for OSHA 
standards to preempt State occupational safety and health standards for issues addressed 
by the Federal standards. In these States, this ETS limits State policy options in the same 
manner as every standard promulgated by the agency. Furthermore, as discussed in the 
Summary and Explanation for Purpose, nothing in the ETS is intended to limit generally 
applicable public health measures instituted by state or local governments that go beyond, 
and are not inconsistent with, the requirements of the ETS. (See Summary and 
Explanation for Purpose, Section VI.A. of this preamble); Gade v. National Solid Wastes 
Management Ass’n, 505 U.S. 88, 107 (1992). In States with OSHA-approved State Plans, 
this ETS does not significantly limit State policy options. Any special workplace 
problems or conditions in a State with an OSHA-approved State Plan may be dealt with 
by that State's standard, provided the standard is at least as effective as this ETS. 
As discussed in the Summary and Explanation for Purpose in this preamble, 
OSHA has included a provision that states the purpose of this ETS, as well as OSHA’s 

intent to preempt all inconsistent State and local requirements that relate to the issues 
addressed by this ETS. (See section 1910.501(a); Summary and Explanation for Purpose, 
Section VI.A. of this preamble). This includes State and local requirements banning or 
limiting the authority of employers to require vaccination, face covering, or testing. As 
discussed in that section, such State and local bans would be preempted by this ETS, 
even in States with OSHA-approved State Plans, because such bans are not approved by 
federal OSHA as part of the State Plan and could not be approved, because such bans are 
clearly not as effective – and, indeed, are contrary to – the federal ETS. See Indust. Truck 
Ass’n v. Henry, 125 F.3d 1305, 1311 (9th Cir. 1997). 
J. State Plans
When Federal OSHA promulgates an emergency temporary standard, States and 
U.S. Territories with their own OSHA-approved occupational safety and health plans 
(“State Plans”) must either amend their standards to be identical or “at least as effective 
as” the new standard, or show that an existing State Plan standard covering this area is “at 
least as effective” as the new Federal standard. 29 CFR 1953.5(b). This ETS imposes 
new requirements to protect workers across the nation from COVID-19. Adoption of this 
ETS, or an ETS that is at least as effective as this ETS, by State Plans must be completed 
within 30 days of the promulgation date of the final Federal rule, and State Plans must 
notify Federal OSHA of the action they will take within 15 days. The State Plan standard 
must remain in effect for the duration of the Federal ETS. As noted above in Federalism 
(Section V.I. of this preamble), this ETS preempts all State and local requirements, 
including in States with State Plans, that ban or limit the authority of employers to require 
vaccination, face covering, or testing. (See also the Summary and Explanation for 
Purpose, Section VI.A. of this preamble). As with all non-identical State Plan standards, 
OSHA will review any comparable State standards to determine whether they are at least 
as effective as this ETS. A State Plan standard that prohibits employers from requiring 

vaccination would not be at least as effective as this ETS because OSHA has recognized 
in this ETS that vaccination is the most protective policy choice for employers to adopt to 
protect their workplaces.
Of the 28 States and Territories with OSHA-approved State Plans, 22 cover both 
public and private-sector employees: Alaska, Arizona, California, Hawaii, Indiana, Iowa, 
Kentucky, Maryland, Michigan, Minnesota, Nevada, New Mexico, North Carolina, 
Oregon, Puerto Rico, South Carolina, Tennessee, Utah, Vermont, Virginia, Washington, 
and Wyoming. The remaining six States and Territories cover only state and local 
government employees: Connecticut, Illinois, Maine, New Jersey, New York, and the 
Virgin Islands.
K. Paperwork Reduction Act
I.  Overview.
The Emergency Temporary Standard (ETS) for COVID-19 Vaccination and 
Testing contains collection of information requirements that are subject to review by the 
Office of Management and Budget (OMB) under the Paperwork Reduction Act of 1995 
(PRA), 44 U.S.C. 3501, et seq., and OMB’s regulations at 5 CFR part 1320. The PRA 
defines a collection of information to mean the obtaining, causing to be obtained, 
soliciting, or requiring the disclosure to third parties or the public, of facts or opinions 
by or for an agency, regardless of form or format (44 U.S.C. 3502(3)(A)). OSHA has 
determined an ETS is necessary to protect workers from the grave danger posed by 
COVID-19 and is issuing an ETS that amends 29 CFR 1910 subpart U to provide 
COVID-19 protections to workers of employers with 100 or more employees. Section 
1910.501 contains collections of information necessary to effectuate the purpose of the 
ETS. The collections of information appear in paragraphs 1910.501(d), (e)(2), (e)(4), 
(f)(1), (g)(1), (g)(4), (h)(1), (j), (k)(1), (k)(2), (l)(1), and (l)(2). For a more comprehensive 
discussion of these provisions, see the sectional analysis earlier in this preamble. These 

information collections are applied by cross reference to other industries in regulations 29 
CFR 1915.1501 (Shipyard Employment), 1917.31 (Marine Terminals), 1918.110 
(Longshoring), 1926.58 (Construction), 1928.21 (Agriculture).79
Under the PRA, a Federal agency cannot conduct or sponsor a collection of 
information unless OMB approves it and the agency displays a currently valid OMB 
control number (44 U.S.C. 3507). Notwithstanding any other provision of law, if a 
collection of information does not display a currently valid control number, an employer 
shall not be subject to penalty for failing to comply with the collection of information (44 
U.S.C. 3512). The PRA has special provisions for emergency situations that are 
applicable to this ETS. OMB may authorize a collection of information without regard to 
the normal clearance procedures if either (a) the relevant agency determines that the 
collection of information is essential to the mission of the agency and public harm is 
reasonably likely to result if normal clearance procedures are followed, or (b) the use of 
normal clearance procedures is reasonably likely to cause a statutory or court ordered 
deadline to be missed (44 U.S.C. 3507(j) and 5 CFR 1320.13). Because COVID-19 
presents an ongoing public health threat to workers and American businesses, OSHA has 
requested the use of these emergency procedures for this ETS. In accordance with 44 
U.S.C. 3507(j)(1), OMB approved the request and assigned this ETS an OMB control 
number that is valid for 180 days. Therefore, the information collection provisions 
contained within this ETS will take effect at the same time as all other provisions. 
II. Summary of Information Collection Requirements.
This information collection is summarized as follows.
79 The ETS applies to agricultural establishments with 11 or more employees engaged on any day in hand-
labor occupations in the field and agricultural establishments that maintain a temporary labor camp, 
regardless of how many employees are engaged on any day in hand-labor occupations in the field).

1. Title:  COVID-19 Vaccination and Testing Emergency Temporary Standard (29 
CFR 1910, subpart U; 1915, subpart Z; 1917, subpart B; 1918, subpart K; 1926, 
subpart D; 1928, subpart B).
2. Type of Review: Emergency.
3. OMB Control Number: 1218-0278. 
4. Affected Public: This rule applies to employers with a total of 100 or more 
employees except where the workplace is covered under the Safer Federal 
Workforce Task Force COVID-19 Workplace Safety: Guidance for Federal 
Contractors and Subcontractors; or in setting where the employee provides 
healthcare services or healthcare support services that falls under the requirements 
of 29 CFR 1910.502. This rule does not apply to employees of covered employers 
who work from home, exclusively outdoors, or who do not report to a workplace 
where other individuals such as coworkers or customers are present.
5. Description of the ICR. This ICR contains collections of information requirements 
for employers with 100 or more employees. The employer must establish, 
implement, and enforce a written mandatory vaccination policy that requires each 
employee to be fully vaccinated against COVID-19 unless the employer 
implements a policy that allows employees to choose between being fully 
vaccinated or both tested and wearing a face covering. Employers must determine 
employee vaccination status, and must require than any employees who are not 
vaccinated be tested for COVID-19 at least once every 7 days. Employers must 
provide specified information to employees regarding COVID-19 vaccine 
efficacy, safety, and the benefits of being vaccinated, and must maintain a record 
of the COVID-19 vaccination status, proof of vaccination, and copies of 
employee COVID-19 test results, and the aggregate number of fully vaccinated 

employees at a workplace along with the total number of employees at that 
workplace.
6. Number of respondents: 1,858,935.
7. Frequency: Varies.
8. Number of Responses: 205,262,803.
9. Estimated Burden Hours: 79,720,444.
10. Estimated Cost (Capital-operation and maintenance): $1,383,751,520.
These totals are explained and supported in the agency's Supporting Statement as 
required by the PRA.
III. Request for Comment.
Although the ETS takes effect immediately, with implementation dates specified 
in the Dates provision of this publication, it also serves as a temporary standard that can 
only be made permanent following an opportunity for public notice and comment. OSHA 
therefore invites the public to submit comments to OSHA on the proposed collections of 
information with regard to the following. 

Whether the proposed collections of information are necessary for the proper 
performance of the Agency’s functions, including whether the information is 
useful. 

The accuracy of OSHA’s estimate of the burden (time and cost) of the collections 
of information, including the validity of the methodology and assumptions used.

The quality, utility, and clarity of the information collected. 

Ways to minimize the compliance burden on employers, for example, by using 
automated or other technological techniques for collecting and transmitting 
information.
Please submit comments related to the Paperwork Act analysis to OSHA in  the 
PRA docket (Docket Number OSHA–2021-0008).  Comments related to other parts of 

the ETS should be submitted to the rulemaking docket (Docket Number OSHA-2021-
0007).  OSHA will accept comments for 60 days on the information collection aspects of 
the rule. For instructions on submitting these comments to the rulemaking and/or PRA 
docket, see the sections of this Federal Register notice titled DATES and ADDRESSES.
References:
Occupational Safety and Health Administration (OSHA). (2021c, October). Health 
Impacts of the COVID-19 Vaccination and Testing ETS. (OSHA, October 2021c)
VI. Summary and Explanation 
A. Purpose
The ETS includes a sentence that states the purpose of the rule. The first part of 
the sentence in the paragraph indicates that the standard addresses the grave danger of 
COVID-19 in the workplace by establishing workplace vaccination, vaccination 
verification, face covering and testing requirements. 
The second part of the sentence addresses the preemption of State and local laws, 
regulations, executive orders, and other requirements, by this Federal standard. It 
indicates OSHA’s intention that the ETS address comprehensively the occupational 
safety and health issues of vaccination, wearing face coverings, and testing for COVID-
19, and thus that the standard is intended to preempt States, and political subdivisions of 
States, from adopting and enforcing workplace requirements relating to these issues, 
except under the authority of a Federally-approved State Plan. In particular, OSHA 
intends to preempt any State or local requirements that ban or limit an employer’s 
authority to require vaccination, face covering, or testing.
Preemption of such State and local requirements derives from section 18 of OSH 
Act and general principles of conflict preemption. See Gade v. National Solid Wastes 

Management Ass'n, 505 U.S. 88 (1992).80 Gade clarified two important principles. First, 
section 18 expresses Congress’ intent to preempt State workplace safety or health laws 
relating to issues on which Federal OSHA has promulgated occupational safety and 
health standards. Under section 18, a State can avoid preemption of such laws only if it 
submits and receives Federal approval for a State Plan for the development and 
enforcement of standards. OSHA-approved State Plans operate under authority of State 
law and must adopt occupational safety and health standards which, among other things, 
must be at least as effective in providing safe and healthful employment and places of 
employment as Federal standards. 29 U.S.C. 667. 
Second, State and local laws that do not constitute occupational safety or health 
laws because they are “laws of general applicability” that regulate workers and 
nonworkers alike are preempted only if they conflict with the federal standard. Laws of 
general applicability that are consistent with the federal standard are not preempted. 
Gade, 505 U.S. at 107.
While section 18 applies to every occupational safety and health standard that 
OSHA promulgates, this ETS raises particular concerns because of the current landscape 
of existing State and local requirements that may overlap with, or directly conflict with, 
the requirements of this ETS. As discussed in Need for the ETS (Section III.B. of this 
preamble), OSHA is adopting this ETS in response to an unprecedented health crisis that 
has resulted in a global pandemic severely impacting the health and wellbeing of people 
in the United States, and globally. This ETS is issued based on OSHA’s determination 
that employees in the United States face a grave danger from workplace exposures to 
SARS-CoV-2, that the ETS is necessary to protect those workers, and that the measures 
80 The Court held that the dual impact licensing statutes were preempted; however, no rationale 
commanded a majority. A four-justice plurality found that supplementary State regulation is 
impliedly preempted. Id. at 98-99. Justice Kennedy’s concurrence would have found express preemption 
rather than implied preemption, Id. at 110-111, but otherwise agreed that “in the OSH statute Congress 
intended to pre-empt supplementary state regulation.” Id. at 113. 

for vaccination, vaccine verification, face coverings, and testing that this ETS requires 
will help ensure that workers covered by the ETS are protected from severe illness and 
death resulting from contracting COVID-19 in the workplace. 
As explained in Need for the ETS (Section III.B. of this preamble), the lack of a 
national standard on this hazard has led to disparate State and local requirements, and this 
underscores the need for OSHA’s ETS to provide clear and consistent protection to 
employees across the country. Over the past months, an increasing number of States have 
passed laws or enacted other requirements banning workplace vaccination policies that 
would mandate vaccination or require proof of vaccination status, thus prohibiting 
employers operating in those jurisdictions from implementing this proven method of 
protecting workers from the hazard of COVID-19 that is at the core of this ETS (see, e.g., 
Texas Executive Order GA-40, October 11, 2021; Montana H.B. 702, July 1, 2021; 
Arkansas S.B. 739, October 4, 2021 and Arkansas H.B. 1977, October 1, 2021; AZ 
Executive Order 2021-18, Aug. 16, 2021). While some States’ bans have focused on 
preventing local governments from requiring their public employees to be vaccinated or 
show proof of vaccination, the Texas, Montana, and Arkansas requirements apply to 
private employers as well. Likewise, some States and localities have enacted 
requirements that prohibit businesses, government offices, schools or other public spaces 
from requiring that face coverings be worn (see, e.g., Florida Executive Order 21-102, 
May 3, 2021; Texas Executive Order GA-34, March 2, 2021; Texas Executive Order GA-
36, May 18, 2021). State and local requirements that prohibit employers from 
implementing employee vaccination mandates, or from requiring face coverings in 
workplaces, serve as a barrier to OSHA’s implementation of this ETS, and to the 
protection of America’s workforce from this deadly virus.
As discussed below, state restrictions of this kind are clearly preempted whether 
they take the form of direct workplace regulation or are part of a law of general 

applicability because they relate to the issues addressed by this standard and conflict with 
it. Gade, 505 U.S. at 99, 107. As is also discussed below, this is true even for State or 
local requirements that may not prevent employers from compliance with the ETS, but 
that prescribe or limit the employer’s ability to mandate vaccination for its workforce as 
the employer’s chosen means of compliance. See Gade, 505 at 107; see also Geier v. 
American Honda, 529 U.S. 861, 869, 875-886 (2000) (finding Department of 
Transportation (DOT) regulations preempted a State tort action where the state action 
“upset the careful regulatory scheme established by federal law” and placing weight on 
DOT’s interpretation that such tort suit would be “an obstacle to the accomplishment and 
execution” of Agency objectives). An employer’s choice to mandate vaccination is a 
critical aspect of this ETS, and state laws that remove that choice conflict with it.  
Thus, to ensure that the ETS supplants the existing State and local vaccination 
bans and other requirements that could undercut its effectiveness, and to foreclose the 
possibility of future bans, OSHA has clearly defined the issues addressed by this section 
to encompass vaccination, face covering, and testing needed to protect against 
transmission of COVID-19 to employees in the workplace. To avoid ambiguity, OSHA 
has stated expressly that it intends this ETS to preempt all State and local workplace 
requirements that “relate” to these issues, except pursuant to a State Plan.  29 U.S.C. 
667(b). 
The “unavoidable implication” of section 18 is that because OSHA has adopted 
this ETS, States may no longer regulate these issues except with OSHA’s approval and 
the authority of a Federally-approved State Plan. Gade, 505 U.S. at 99. As the Court 
explained, section 18 preempts States without approved plans from adopting or enforcing 
any laws that constitute, “in a direct, clear and substantial way regulation of worker 
health and safety” relating to an issue addressed by an OSHA standard. Id. at 107. 

State and local requirements that ban or otherwise limit workplace vaccination, 
face covering, or testing clearly “relate” to the occupational safety and health “issues” 
that OSHA is regulating in this ETS. 29 U.S.C. 667(b). Such bans regulate key workplace 
COVID-19 protections that are encompassed by this ETS “in a direct, clear and 
substantial way.” Gade, 505 U.S. at 107. The direct effect of such bans is to prohibit 
employers from requiring employees to implement measures, such as vaccination 
requirements, face coverings, or testing. These workplace protective measures are 
covered by, and, in many circumstances required by, this ETS. For example, vaccination 
mandate bans directed at employers specifically bar them from requiring employee 
vaccination requirements for the purposes of protecting their workforce. Prohibitions on 
face covering mandates likewise directly prohibit individuals in positions of authority, 
including employers, from requiring face covering use. 
Although the expressly stated purposes for State and local requirements banning 
or limiting employers from requiring vaccinations, face coverings, or testing may not be 
occupational safety and health,81 this does not control their preemption under section 18 
of the OSH Act. In assessing State and local requirements’ impact on a federal statutory 
scheme, courts “have refused to rely solely on the legislature's professed purpose and 
have looked as well to the effects of the law.” Gade, 505 U.S. at 105; see also, e.g., 
Perez v. Campbell, 402 U. S. 637, 651-652 (1971) (“[A]ny state legislation which 
frustrates the full effectiveness of federal law is rendered invalid by the Supremacy 
Clause”); Napier v. Atlantic Coast Line R. Co., 272 U.S. 605, 612 (1926) (pre-emption 
analysis does not depend on whether federal and State laws "are aimed at distinct and 
different evils" but whether they "operate upon the same object"). 
81 The express purposes of such requirements banning or limiting employers from requiring vaccination, 
face coverings, or testing may often not relate to occupational safety and health. For example, Governor 
Greg Abbott’s Texas face covering mandate ban in Executive Order GA-16, is based on alleged decreasing 
COVID-19 rates and the need to alleviate “confusion,” (Texas Executive Order GA-36, May 18, 2021); the 
stated purpose of Montana’s vaccination mandate ban is to address health care privacy interests (Montana 
H.B. 702, July 1, 2021).

That a State has articulated a purpose other than, or in addition to, workplace 
health and safety would not divest the OSH Act of its preemptive force, because 
preemption law looks to the effects as well as the purpose of a State law, and thus a dual-
impact State law cannot avoid OSH Act preemption simply because the regulation serves 
several objectives. Gade, 505 U.S. at 107 (holding “a law directed at workplace safety is 
not saved from pre-emption simply because the State can demonstrate some additional 
effect outside of the workplace” and “[t]hat such law may also have a nonoccupational 
impact does not render it any less of an occupational standard for purposes of pre-
emption analysis”). Thus, to the extent that the stated purpose of a requirement that bans 
or limits employers from requiring vaccinations, face coverings, or testing is something 
other than, or in addition to, occupational health, such laws, which have a specific and 
direct impact on worker health, are nevertheless preempted.
Further, section 18 preempts even “nonconflicting” State and local occupational 
safety and health requirements relating to the issues addressed by this standard. Gade, 
505 U.S. at 98-99, 103; see id. at 100 (“state laws regulating the same issue as federal 
laws are not saved, even if they merely supplement the federal standard”). This is because 
OSHA “’pre-empts the field’ for any nonapproved State law regulating the same safety 
and health issue.” See Gade, 505 U.S. at 104, n. 2, citing English v. General Electric. 
Co., 496 U.S. 72, 79-80, n.5 (“[F]ield preemption may be understood as a species of 
conflict pre-emption: A State law that falls within a pre-empted field conflicts with 
Congress’ intent (either express or plainly implied) to exclude state regulation”); see also 
id. at 105 (discussing effect of field preemption). See generally Geier, 529 U.S. at 869, 
875-886 (finding State law preemption where it “upset the careful regulatory scheme 
established by federal law”); Williamson v. Mazda Motor of Am., Inc., 562 U.S. 323, 330-
36 (2011) (affirming the conflict pre-emption principle that “a state law that stands as an 
obstacle to the accomplishment and execution of the full purposes and objectives of a 

federal law is pre-empted” and finding preemption where State law interfered with 
“significant objective” of the federal regulation). 
For example, the ETS would preempt State or local governments from dictating 
that employers adopt a scheme of testing and face coverings that complies with 
1910.501(g) and (i) of the ETS, but that bars employers from electing the preferred 
vaccine mandate alternative in paragraph (d), because this interferes with OSHA’s 
significant regulatory objectives and its preemption of the field.82 (See Need for the ETS 
(Section III.B. of this preamble) discussing that vaccination is the preferred compliance 
option under this rule because it is the most effective method of protecting workers from 
COVID-19).  Likewise, the ETS would preempt such State or local occupational 
requirements, even to the extent that they may regulate employers with fewer than 100 
employees, notwithstanding that the requirements in this ETS only apply to employers 
with more than 100 employees.
Case law is instructive on this point. In Gade, the Supreme Court found 
regulations implementing a State statute that required training for workers handling 
hazardous waste that went beyond, but did not conflict with, OSHA’s hazardous waste 
training requirements to be preempted by the OSHA requirements. Id. Likewise, in 
Industrial Truck Association Incorporated v. Henry, the Ninth Circuit found that OSHA’s 
hazard communication standard preempted California’s Hazard Communication 
regulations that were not submitted to OSHA for approval through its State Plan, even to 
the extent that California’s Hazard Communication rule regulated manufacturers and 
distributers who were excluded from coverage under federal OSHA’s rule. Indust. Truck 
Ass’n v. Henry, 125 F.3d 1305, 1311-14 (9th Cir. 1997).  In the same way, the ETS 
82 OSHA is aware that some States have adopted or are considering adopting such requirements, which this 
ETS would preempt (see, e.g., Arkansas S.B. 739, October 4, 2021 and Arkansas H.B. 1977, October 1, 
2021, which Arkansas Governor Asa Hutchinson allowed to became law without his signature, and which 
require employers in Arkansas to allow employees to opt out of vaccination for purposes of complying with 
federal vaccination requirements; see also Governor Hutchinson, October 13, 2021; Marr, October 7, 2021 
(describing the Arkansas legislation and noting that other states may contemplate similar legislation)).

preempts all State and local requirements that bar or limit the ability of an employer to 
require workplace vaccination, testing, and face coverings to protected employees against 
COVID-19 in any respect, since OSHA has occupied the entire field of regulation on 
these issues. 
OSHA’s definition of the “issue” in this rule should be afforded weight, since the 
OSH Act vests OSHA with standard-setting responsibility and, therefore, the authority to 
determine which “issues” to address with occupational safety and health standards. See 
Indust. Truck, 125 F.3d at 1311 (relying on OSHA’s regulation and statements in the 
preamble to identify the relevant “issue” for preemption purposes in OSHA’s Hazard 
Communication standard).
Importantly, although OSHA’s stated intention is to preempt conflicting State and 
local requirements relating to the issues addressed by this standard, OSHA recognizes 
that the OSH Act does not allow, and OSHA does not intend, for the ETS to preempt 
non-conflicting State or local requirements of general applicability. In Gade, the Supreme 
Court qualified its ruling by saving from preemption non-conflicting State and local 
“laws of general applicability (such as laws regarding traffic safety or fire safety) that do 
not conflict with OSHA standards and that regulate the conduct of workers and 
nonworkers alike.” Gade, 505 U.S. at 107. The Majority reasoned that, “[a]lthough some 
laws of general applicability may have a ‘direct and substantial’ effect on worker safety, 
they cannot fairly be characterized as ‘occupational’ standards, because they regulate 
workers simply as members of the general public.” Id.
During the pandemic, many States and municipal governments have adopted 
requirements intended to protect public health by helping to prevent the spread of 
COVID-19 in public spaces. These have included requirements mandating face coverings 
in indoor public spaces, including businesses, government buildings, and schools (see, 
e.g., Baltimore City Health Department, August 10, 2021; Illinois Executive Order 2021-

20, August 26, 2021; Hawai’i Emergency Proclamation, October 1, 2021).  In addition, in 
recent months, some States and municipal governments have adopted requirements 
mandating that members of the public provide proof of vaccination or recent COVID-19 
testing in order to enter restaurants, bars, or other businesses or public spaces (see, e.g., 
NYC Emergency Executive Order 225, August 16, 2021 (mandating COVID-19 
vaccination for most individuals for indoor entertainment, recreation, dining and fitness 
settings)). Requirements such as these apply to “workers and nonworkers alike” and 
“regulate workers simply as member of the general public” and are accordingly not 
preempted. Gade, 505 U.S.at 107. 
Based on OSHA’s observations and experience during the past year and a half 
that the pandemic has been ongoing, OSHA is confident that protective State and local 
regulations of general applicability that mandate face coverings or vaccination will 
complement, rather than interfere with OSHA’s enforcement of the ETS, and also does 
not intend to preempt such requirements. Indeed, OSHA believes that such measures 
have significantly reduced the harmful effects of the pandemic and total fatalities. See 
Steel Institute of NY v. The City of NY, 716 F.3d 31, 38 (affording some weight to 
OSHA’s view that municipal regulations governing construction cranes did not interfere 
with OSHA’s regulatory scheme in its crane standards and ultimately adopted OSHA’s 
view in finding these municipal regulations were not preempted by OSHA crane 
standards).83  
83 OSHA’s Cranes and Derricks in Construction rule directly discussed its expectations and intent regarding 
the preemptive effect of the rule, including that it was not intended to preempt generally applicable 
municipal regulations, such as building codes, which serve public safety purposes. Cranes and Derricks in 
Construction, 75 FR 47,906, 48,128 (August 9, 2010). This rule also includes a provision that requires 
employers to comply with State crane operator licensing requirements that meet the federal floor for crane 
operator certification in the rule. 29 CFR 1926.1427(c)(1).  OSHA has also indicated that its rule would not 
preempt State or local requirements in other rulemakings.  See e.g., 72 FR 7136, 7188 (Feb. 14, 2007) 
(Preamble to OSHA's most recent electrical safety standard) (“State and local fire and building codes, 
which are designed to protect a larger group of persons than employees,” are not preempted); 29 CFR 
1910.134(e) (requiring compliance with State and local laws by requiring “a licensed health care 
professional” to perform a medical evaluation of an employee's ability to use a respirator).

In Steel Institute, the Second Circuit held that OSHA’s crane regulations did not 
preempt New York City municipal regulations governing construction cranes, finding 
that such regulations were requirements of general applicability, notwithstanding their 
direct bearing on worker safety, because their primary purpose and effect was to preserve 
the safety of the general public, and they regulated workers and nonworkers alike. Id. The 
Steel Institute court noted the “strong presumption against preemption when states and 
localities “exercise[ ] their police powers to protect the health and safety of their 
citizens.” Id. at 36, citing Medtronic, Inc. v. Lohr, 518 U.S. 470, 475 (1996). The Second 
Circuit was also influenced by the clear danger presented to the public by unsafe crane 
operation. This is analogous to the situation here, because exposure to COVID-19 is a 
hazard that directly impacts everyone. Thus, generally applicable State and local 
mandates requiring face coverings or vaccination should not be preempted and should 
remain in effect, notwithstanding this ETS.84
On the other hand, as noted above, this standard will preempt requirements that 
conflict with it, regardless of whether the requirements are part of a law of general 
applicability.85 
The effect of the ETS on State law requirements in State Plan States works 
somewhat differently.  As previously noted, under section 18 of the OSH Act States that 
wish to assume responsibility for the development and enforcement of “occupational 
84 In addition, some State and local governments have adopted vaccination mandates directed at State 
and/or local government employees. The OSH Act and OSHA’s standards would not preempt such 
requirements since State or local government employers and employees are exempt from OSHA coverage 
under the OSH Act. 29 U.S.C. 652 (5) (defining employer to exclude “any State or political subdivision of 
a State”). However, many State and local government employers in States with OSHA-approved State 
Plans will be covered by State occupational safety and health requirements, and State Plans must adopt 
requirements for State and local government employers, as well as covered private sector employers, that 
are at least as effective as federal OSHA’s requirements; State Plans may also choose to adopt more 
protective occupational safety and health requirements. 29 U.S.C. 667(c).
85 As previously discussed, bans on mandating vaccinations or face coverings have not typically been 
generally applicable, but even the least workplace-specific, most generally applied bans will not survive 
preemption because they directly interfere with the ETS’s regulatory scheme. 

safety and health standards relating to any occupational safety or health issue with respect 
to which a Federal standard has been promulgated” may submit a State Plan to OSHA for 
approval.  Id. section 667(b); see also id. section 667(c) (describing requirements for 
OSHA approval of State Plans on issues for which OSHA has adopted standards). There 
are 22 States and territories that have OSHA-approved State Plans for private employers, 
and 6 additional States and territories that have OSHA-approved State Plans for public 
employers only. 
Under section 18(c)(2) of the OSH Act, State Plans are required to adopt and 
enforce occupational safety and health standards that are at least as effective as federal 
OSHA’s requirements. Id. section 667(c)(2). In addition, the OSH Act requires that State 
Plans must cover State and local government employees (including, e.g., State and local 
school systems within the scope of this rule), even though federal OSHA does not have 
coverage over such employees in States without OSHA-approved State Plans. 
Once OSHA promulgates an ETS, OSHA’s regulations provide that those States 
have “30 days after the date of promulgation of the Federal standard to adopt a State 
emergency temporary standard,” or to demonstrate “that promulgation of an emergency 
temporary standard is not necessary because the State standard is already the same or at 
least as effective as the Federal standard change.”  29 CFR § 1953.5(b)(1). The new ETS 
becomes part of the OSHA-approved State Plan through the State Plan’s submission to 
OSHA documentation showing it adopted an identical ETS or a “Plan Change 
Supplement” showing that it has adopted requirements that are “at least as effective” as 
federal OSHA’s ETS. 29 CFR 1953.5(b)(3); 1953.4.
Even in States with OSHA-approved State Plans, any State law relating to an 
occupational safety and health issue that OSHA regulates is preempted unless it is 
submitted for OSHA’s approval as a supplement to the State Plan.  Indust. Truck Ass’n, 
125 F.3d at 1311 (“If a State wishes to regulate an issue of worker safety for which a 

federal standard is in effect, its only option is to obtain the prior approval of the Secretary 
of Labor . . . [and] [i]t would make the state plan approval requirement superfluous if a 
state could pick and choose which occupational health and safety regulations to submit to 
OSHA”). Thus, a State or local requirement banning or limiting employer vaccine 
mandates would similarly be preempted because it has not been approved by federal 
OSHA as part of the State Plan.  And, indeed, it could not be approved by federal OSHA, 
because such bans or limitations undercut the ETS’s requirements and are clearly not as 
effective as the federal ETS.  See 29 U.S.C. 667(c)(2).86
Finally, this provision includes a note that this section establishes minimum 
requirements for employers, that nothing in this section prevents employers from 
agreeing with their employees to implement additional measures, and that this section 
does not supplant collective bargaining agreements or other collectively negotiated 
agreements in effect that may have negotiated terms that exceed the requirements herein. 
It also references the National Labor Relations Act of 1935, which protects most private-
sector employees’ right to take collective action. The purpose of this note is to remind 
employers and employees that OSHA’s ETS establishes a floor for protections, and that it 
does not preclude bargaining for additional protective measures. For example, employers 
might agree to cover the costs of face coverings or medical removal, or to a requirement 
that all employees, regardless of vaccination status, wear face coverings while working 
indoors. 
References:
An Act Prohibiting Discrimination Based on a Person’s Vaccination Status or Possession 
of an Immunity Passport; Montana H.B. 702. (2021, July 1). 
https://leg.mt.gov/bills/2021/billpdf/HB0702.pdf. (Montana H.B. 702, July 1, 2021)
Arizona Executive Order 2021-18. (2021, August 16). 
https://azgovernor.gov/sites/default/files/eo_2021-18.pdf. (AZ Executive Order 2021-18, 
August 16, 2021)
86 For example, Arizona has an OSHA-approved State Plan, but its vaccination ban, which is not part of its 
State Plan, is preempted by this ETS (see AZ Executive Order 2021-18, Aug. 16, 2021).

Arkansas H.B. 1977. (2021, October 1). To Provide Employee Exemptions From Federal 
Mandates and Employer Mandates Related to Coronavirus 2019 (COVID-19); and to 
Declare an Emergency. 
https://www.arkleg.state.ar.us/Bills/FTPDocument?path=%2FAMEND%2F2021R%2FP
ublic%2FHB1977-H1.pdf. (Arkansas H.B. 1977, October 1, 2021)
Arkansas S.B. 739. (2021, October 4). An Act Concerning Employment Issues Related to 
Coronavirus 2019 (COVID-19); To Provide Employee Exemptions From Federal 
Mandates and Employer Mandates Related to Coronavirus 2019 (COVID-19); To 
Declare and Emergency; and For Other Purposes. 
https://www.arkleg.state.ar.us/Bills/FTPDocument?path=%2FBills%2F2021R%2FPubli
c%2FSB739.pdf. (Arkansas S.B. 739, October 4, 2021)
Arkansas Governor Asa Hutchinson. (2021, October 13). Press Release: Governor 
Hutchinson Allows Vaccine Mandate, Redistricting Bills to Become Law Without His 
Signature. https://governor.arkansas.gov/news-media/press-releases/governor-
hutchinson-allows-vaccine-mandate-redistricting-bills-to-become-la. (Governor 
Hutchinson, October 13, 2021)
Baltimore City Health Department. (2021, August 10). Health Commissioner Updated 
Directive and Order for Face Coverings. 
https://www.baltimorecity.gov/sites/default/files/HEALTH%20COMMISSIONER%20AU
GUST%2010,%202021%20DIRECTIVE%20AND%20ORDER%20FOR%20FACE%20C
OVERINGS_FINAL.pdf. (Baltimore City Health Department, August 10, 2021)
Emergency Executive Order 225. (2021, August 16). Key to NYC: Requiring COVID-19 
Vaccination for Indoor Entertainment, Recreation, Dining and Fitness Settings. 
https://www1.nyc.gov/office-of-the-mayor/news/225-001/emergency-executive-order-225. 
(NYC Emergency Executive Order 225, August 16, 2021)
Florida Executive Order 21-102. (2021, May 3). https://www.flgov.com/wp-
content/uploads/orders/2021/EO_21-102.pdf. (Florida Executive Order 21-102, May 3, 
2021)
Hawai’i Emergency Proclamation Related to the State’s COVID-19 Delta Response. 
(2021, October 1). https://governor.hawaii.gov/wp-content/uploads/2021/10/2109152-
ATG_Emergency-Proclamation-Related-to-the-States-COVID-19-Delta-Response-
distribution-signed.pdf. (Hawai’i Emergency Proclamation, October 1, 2021)
Illinois Executive Order 2021-20. (2021, August 26). 
https://www.illinois.gov/government/executive-orders/executive-order.executive-order-
number-20.2021.html. (Illinois Executive Order 2021-20, August 26, 2021)
Marr C. (2021, October 7). Workplace Vaccine Exemption Bills Sent to Arkansas 
Governor. Bloomberg Law. https://news.bloomberglaw.com/daily-labor-
report/workplace-vaccine-exemption-bills-sent-to-arkansas-governor. (Marr, October 7, 
2021)
Texas Executive Order GA-34. (2021, March 2). Executive Order No. GA-34 relating to 
the opening of Texas in response to the COVID-19 disaster. 
https://open.texas.gov/uploads/files/organization/opentexas/EO-GA-34-opening-Texas-

response-to-COVID-disaster-IMAGE-03-02-2021.pdf. (Texas Executive Order GA-34, 
March 2, 2021)
Texas Executive Order GA-36. (2021, May 18). Executive Order No. GA-36 relating to 
the prohibition of governmental entities and officials from mandating face coverings or 
restricting activities in response to the COVID-19 disaster. 
https://gov.texas.gov/uploads/files/press/EO-GA-
36_prohibition_on_mandating_face_coverings_response_to_COVID-
19_disaster_IMAGE_05-18-2021.pdf. (Texas Executive Order GA-36, May 18, 2021)
Texas Executive Order GA-40. (2021, October 11). Executive Order No. GA-40 relating 
to prohibiting vaccine mandates, subject to legislative action. 
https://gov.texas.gov/uploads/files/press/EO-GA-
40_prohibiting_vaccine_mandates_legislative_action_IMAGE_10-11-2021.pdf. (Texas 
Executive Order GA-40, October 11, 2021)
B. Scope and Application
 
Paragraph (b)(1) of this ETS provides that the ETS applies to all employers that 
have a total of at least 100 employees at any time the ETS is in effect. OSHA has 
determined that the unvaccinated employees of these employers face a grave danger of 
exposure to SARS-CoV-2, including the Delta variant, while they are at work (see Grave 
Danger, Section III.A. of this preamble). Because this grave danger finding applies to all 
unvaccinated employees who come into contact with other people in indoor work settings 
as part of their employment, this ETS is not limited by industrial sector or NAICS code. 
Therefore, this standard generally covers employers in all workplaces that are under 
OSHA’s authority and jurisdiction, including industries as diverse as manufacturing, 
retail, delivery services, warehouses, meatpacking, agriculture, construction, logging, 
maritime, and healthcare.  
I. Decision to limit coverage of this ETS to employers with 100 or more employees.
This ETS applies to employers with a total of 100 or more employees at any time 
the standard is in effect.  In light of the unique occupational safety and health dangers 
presented by COVID-19, and against the backdrop of the uncertain economic 
environment of a pandemic, OSHA established this coverage threshold for four reasons.  
First, OSHA is confident that employers with 100 or more employees will be able to meet 

the standard’s requirements promptly, as the emergency addressed by the standard 
necessitates. OSHA is less confident that smaller employers can do so without undue 
disruption. Second, this coverage threshold will enable the standard to reach two-thirds of 
all private-sector workers in the nation, providing them with prompt protection. Third, 
the standard will reach the largest facilities, where the most deadly outbreaks of COVID-
19 can occur. Fourth, the 100-employee threshold in this standard is comparable with the 
size thresholds established by congressional and agency decisions in analogous contexts.
a. Challenges to feasibility analysis for small businesses. 
 An OSHA standard, including an ETS, must be both economically and 
technologically feasible.  A standard is economically feasible under the OSH Act if it 
neither threatens “massive dislocation to” nor upsets the “competitive stability of” the 
regulated industries.  United Steelworkers of Am., AFL-CIO-CLC v. Marshall, 647 F.2d 
1189, 1265 (D.C. Cir. 1980).  Technological feasibility has been interpreted broadly to 
mean “capable of being done” Am. Textile Mfrs. Inst. v. Donovan, 452 U.S. 490, 509–510 
(1981).   
As shown in Economic Analysis, Section IV.B. of this preamble, OSHA is 
confident that this standard is feasible for employers with 100 or more employees. OSHA 
is not at this time making any determination about whether it would be appropriate to 
extend the ETS to cover smaller employers. Put simply, the agency is requiring that 
employers it is confident can implement the provisions of the standard without delay do 
so. At the same time, the agency is soliciting public comment and seeking additional 
information to assess the ability of smaller employers to do so in the rulemaking 
commenced by this ETS.  OSHA will determine the issue on the basis of the record, after 
receiving public comment.87 The SARS-CoV--2 virus continues to spread rapidly, and 
87 If OSHA receives information suggesting that a broader scope would be appropriate, the agency could 
expand the scope of the ETS quickly through a supplemental action. Fla. Peach Growers Ass’n, Inc. v. U. 

each day that passes, tens of thousands more people are infected. The employees of larger 
firms should not have to wait for the protections of this standard while OSHA takes the 
additional time necessary to assess the feasibility of the standard for smaller employers.
The pandemic has presented special challenges for small businesses. According to 
a survey conducted during its early stages, 66% of businesses with fewer than 100 
employees had suffered revenues losses exceeding 30%. (SHRM, May 6, 2020a). By 
contrast, only 27% of larger businesses with more than 100 employees had seen revenue 
drops of more than 30% (SHRM, May 6, 2020b).  More recently, 61% of the members of 
the National Federation of Independent Businesses, mostly very small businesses, 
responded to a survey reported that they were experiencing staff shortages, with half of 
that group reporting a moderate to significant loss of sales because of unfilled positions 
(NFIB, July 12, 2021).  
The requirements of the ETS could have a differential impact on small businesses 
compared with larger firms.  Many small businesses lack separate human resources 
departments and struggle to carry out HR functions. A study found that some 70% of 
small businesses (with 5 to 49 employees) handle HR tasks in an ad hoc way. (ADP, 
December 2016). Only 23% of ad hoc managers believed they had the tools and 
resources necessary to perform HR tasks well, and only 19% were fully confident in their 
ability to handle HR tasks without making mistakes (ADP, December 2016). Another 
survey found that HR functions are proportionally far more expensive for smaller firms 
than for larger (small firms defined as up to 250 workers) (SHRM, 2015). The ETS 
requires employers to establish new systems to track vaccination status among workers, 
to keep related records, and for firms that allow the testing option, to keep records of each 
test. These records must be treated as confidential medical records subject to detailed 
S. Dep’t of Labor, 489 F.2d 120, 127 (5th Cir. 1974) (“It is inconceivable that Congress, having granted the 
Secretary the authority to react quickly in fast-breaking emergency situations, intended to limit his ability 
to react to developments subsequent to his initial response.”)

regulations, which is not something most smaller employers typically need to do or have 
existing systems in place to address.  29 CFR 1910.1020.  While OSHA has imposed 
similar requirements on smaller employers before, it has typically done so in highly 
regulated industries, such as healthcare, or in industries involving complicated industrial 
processes, which already require a certain degree of administrative capacity even when 
not responding to a grave danger, through a rulemaking process that provides additional 
time for notice and implementation, and when there is more time to assess the impact that 
the standard would have on small business. This emergency standard by contrast applies 
across the board to all industries, including less regulated retail and service sectors. 
Moreover, OSHA estimates that some 5% of employees may have a medical 
contraindication or request an accommodation from the rule’s requirements for disability 
or sincerely held religious belief reasons. (Please see Economic Analysis, Section IV.B. 
of this preamble). Assessing these requests may require more resources for smaller firms 
with less experience in this area, particularly if they lack HR staff. By the same token, a 
delay in applying the ETS to businesses with fewer than 100 employees would allow 
those businesses the benefit of learning from the models established by larger businesses 
with respect to accommodations. Similarly, implementing the ETS’s testing provisions in 
a stepwise fashion will allow OSHA the time necessary to assess any impact the new 
requirements may have on the testing infrastructure and related supply chains before 
considering extending those requirements to additional employers. 
b. The ETS provides prompt protection for most of America’s workforce.
The 100 employee threshold means the ETS will reach two-thirds of the nation’s 
private sector workforce, providing protection to millions of workers while issues 
regarding smaller firms are reviewed. OSHA considered that a 100 employee threshold 
was superior to a 150 employee threshold in this respect, because it would protect more 
employees: 67% rather than 63%, which is a difference of 4.856 million workers. (US 

Census Bureau, May 2021). And while a 50 employee threshold would have covered 
more employees (78%), it would have required additional feasibility analysis, while still 
leaving many employees outside the standard. (US Census Bureau, May 2021).
c. The ETS will help prevent large outbreaks of COVID-19. 
The ETS’s focus on employers with more than 100 employees will also help 
prevent large-scale outbreaks. As addressed in more detail in the discussion of Grave 
Danger (Section III.A. of this preamble), all unvaccinated employees who work in indoor 
settings face a grave danger from COVID-19, which is why the scope of the ETS is not 
limited to worksites of a specific size.  The standard is based on employer size primarily 
because administrative capacity is more closely related to employer size. In addition, 
employer size provides a clear measure that is easy for employers (and OSHA) to track, 
as opposed to an alternative such as a workplace-based approach, which could fluctuate 
from day to day and mean more places and information for the employer to track. But 
OSHA also chose the 100 employee size threshold in recognition of the fact that larger 
employers are more likely to have many employees gathered in the same location. For 
employers with 100 or more employees, the median number of employees at any one 
location is approximately 50 (the average is also 50). (US Census Bureau, May 2021). 
For employers with fewer than 100 employees, the median number of any one location is 
approximately 2 (with an average number of 7)  (US Census Bureau, May 2021).   
Employees at larger locations are statistically more likely to be exposed to 
someone with COVID-19 during the course of their shifts, and thus face a heightened risk 
of virus transmission. Studies indicate that introduction of infection and the risk of 
infection transmission is increased with the size of a gathering (Champredon et al., April, 
2021), and with larger populations (Shacham et al., July 5, 2021).  See also (Contreras et 
al., July, 2021) (concluding that outbreaks were larger and lasted longer at facilities with 
more onsite staff).  It is therefore not surprising that significant COVID-19 outbreaks 

have occurred at large facilities of employers with 100 or more employees88 (Oregon 
Health Authority, October 6, 2021; CDPHE, October 6, 2021). A study of outbreaks in 
Los Angeles County found that the median number of employees in an establishment in 
which an outbreak occurred was 95, well above the 50 employee median for locations of 
employers covered by this rule, indicating that the rule will protect employees in the 
places where outbreaks are most likely to occur.  (Contreras et al., July, 2021). And those 
outbreaks occurred even before the emergence of the SARS-CoV-2 Delta variant, which 
the CDC says “causes more infections and spreads faster than early forms of SARS-CoV-
2.” (CDC, August 26, 2021)  In fact, the studies noted earlier in this paragraph were 
published just as the Delta variant was emerging, meaning that the risk of transmission 
cited in those studies has likely increased. 
While virus transmission is certainly not limited to large facilities, the potential 
scope of an outbreak is inherently more limited when fewer employees are present.  In 
limiting the scope of the ETS to employers with 100 or more employees, OSHA is 
prioritizing coverage of those businesses in which the spread of the virus could 
potentially affect the largest number of employees and for which the agency is most 
confident that it is feasible to apply the standard.   
d. Analogous regulatory regimes use comparable employee size thresholds.
Congress and federal agencies have frequently recognized that an employee size 
threshold may be appropriate in different regulatory contexts. They have not settled on 
any one number as the most appropriate, presumably because that depends on balancing 
88 See, e.g., Oregon Health Authority, October 6, 2021,  (publishing data on outbreaks in large workplaces 
including two Amazon facilities, several hospitals, and a Walmart distribution center); CDPHE, Oct. 6, 
2021, (identifying an active Covid outbreak in Cargill’s Fort Morgan, CO meat processing plant, which 
employs more than 2,000 workers).  While some have speculated that clusters of infections among 
employees at the same facility might result initially from shared exposures outside of work, the original 
source of the infection would have little bearing on the statistical probability of exposure and transmission 
once the infected people are together in the workplace with unvaccinated co-workers.  The most effective 
way to prevent further transmission is to protect the other workers through vaccination or, when that is not 
possible, identify and remove the infected workers from the workplace as quickly as possible.

different considerations that are relevant to the particular context, as OSHA has done 
here.  But several analogous regulatory regimes use employee size thresholds comparable 
to the one selected here, in light of similar concerns about administrative feasibility.
For example, the EEOC has issued regulations requiring employers with 100 or 
more employees to submit annual reports related to equal employment opportunity in 
their workforce, in recognition that larger employers are better equipped to absorb the 
types of administrative burdens imposed by surveying, tracking and recordkeeping 
requirements.  See 42 U.S.C. 2000e-8(c), 29 CFR 1602.7-.14 and 41 CFR 60-1.7(a). In 
earlier measures adopted in response to the COVID-19 pandemic, Congress adopted 
special protections and exemptions based on employee counts.  The Families First 
Coronavirus Response Act, Pub. L. No. 116-127 (2020), sections 7001 and 7003 
provided tax credits to businesses with fewer than 500 employees to assist compliance 
with the Act’s expansion of paid sick and family leave, in recognition of the challenges 
facing smaller employers.  Congress again relied on the same 500 employee threshold 
when it later extended tax credits only to employers who granted employees paid time off 
to be vaccinated, implicitly acknowledging the financial obstacles that can exist for 
smaller employers for the same activity that this ETS promotes (and without the vaccine 
policy and verification requirement in this ETS).  American Rescue Plan Act, Pub. L. No. 
117-2, Sec. 9641 (2021).   
In the Affordable Care Act, Congress set the maximum size of a “small 
employer” at 100 employees for purposes of allowing greater flexibility to these 
employers. 42 U.S.C.A. 18024(b)(3). Likewise, private employers with fewer than 50 
employees are exempt from complying with the Family and Medical Leave Act, in 
recognition of smaller employers’ decreased administrative capacity, as well as their 
inability to easily accommodate employee absences.  29 U.S.C.A. 2611(2)(b)(2).

e. The 100 employee coverage provision is a reasonable exercise of the Secretary’s 
authority. 
OSHA’s choice of a 100 employee threshold is based on balancing the 
fundamentally incommensurable considerations described above. Under the statute 
OSHA “shall” issue an ETS when employees are exposed to grave danger, and is not to 
follow normal notice and comment procedures to build a record. 29 U.S.C. 655(e). But 
OSHA may not issue an ETS unless it shows that the rule is feasible for the employers 
covered, and it has not yet made a feasibility determination for smaller employers. In the 
circumstances of this case, OSHA considered that an ETS was urgently needed to protect 
employees, that a 100 employee threshold would protect the great majority of them and 
prevent the largest outbreaks, that it would avoid the delays that would be needed if the 
agency were required to gather information and analyze feasibility for smaller employers, 
and that a comparable size threshold has been found appropriate in similar contexts. 
Where employees are dying every day, it is not unreasonable for the agency to prioritize 
doing what it can to address the problem quickly, regardless of whether there are further 
actions it might be able to take later.
 Doing so implements the statutory delegation of authority to the agency to 
establish priorities for issuing standards by giving “due regard to the urgency of the need” 
for standards for particular workplaces. 29 U.S.C. 655(g). The courts have recognized 
that this provision authorizes the Secretary to make reasonable decisions limiting the 
scope of a standard, particularly where as here the agency has said it will address the 
reserved issue in subsequent rulemaking. Forging Indus. Assoc. v. Donovan, 773 F.2d 
1436, 1454 (4th Cir. 1985) (hearing conservation standard); United Steelworkers of Am. 
v. Marshall, 647 F.2d 1189, 1309-1310 (D.C. Cir. 1980) (lead standard). 
Where competing considerations are in play and there is no clear perfect 
choice, OSHA has a degree of discretion to draw a reasonable line.  Courts have 

consistently recognized that agencies have discretion to draw reasonable lines. As 
the D.C. Circuit has explained: An agency has “wide discretion” in making line-
drawing decisions and “[t]he relevant question is whether the agency's numbers are 
within a zone of reasonableness, not whether its numbers are precisely 
right.” WorldCom, Inc. v. FCC, 238 F.3d 449, 462 (D.C.Cir. 2001) (quotation 
marks omitted). An agency “is not required to identify the optimal threshold with 
pinpoint precision. It is only required to identify the standard and explain its 
relationship to the underlying regulatory concerns.” Id. at 461–62.  Nat’l Shooting 
Sports Found. v. Jones, 716 F.3d. 200, 214-215 (D.C. Cir 2013). See also 
Providence Yakima Med. Ctr. v. Sebelius, 611 F.3d 1181, 1190-1191 (9th Cir. 
2010).
For the reasons discussed above, the balance the agency struck here falls 
well within this zone of reasonableness. 
II. Explanation of who is included in the 100-employee threshold.
The applicability of this ETS is based on the size of an employer, in terms of 
number of employees, rather than on the type or number of workplaces.  In determining 
the number of employees, employers must include all employees across all of their U.S. 
locations, regardless of employees’ vaccination status or where they perform their work. 
Part-time employees do count towards the company total, but independent contractors do 
not.  As discussed above, OSHA has not found that the standard is feasible for firms with 
fewer than 100 employees, because it needs additional time to assess the impact of the 
standard on these employers, particularly as many smaller firms lack separate human 
resources departments and may face additional challenges when carrying out human 
resources functions.  In contrast, OSHA has determined that the standard is feasible for 
firms with 100 or more employees, regardless of where those employees report to work.  
These firms generally have greater administrative capacities, and including all such 

employers in the scope of this ETS ensures that OSHA can cover two-thirds of all 
workers in the private sector as quickly as possible.   
For a single corporate entity with multiple locations, all employees at all locations 
are counted for purposes of the 100-employee threshold for coverage under this ETS. In a 
traditional franchisor-franchisee relationship in which each franchise location is 
independently owned and operated, the franchisor and franchisees would be separate 
entities for coverage purposes, such that the franchisor would only count “corporate” 
employees, and each franchisee would only count employees of that individual 
franchise. In other situations, two or more related entities may be regarded as a single 
employer for OSH Act purposes if they handle safety matters as one company, in which 
case the employees of all entities making up the integrated single employer must be 
counted.   
In scenarios in which employees of a staffing agency are placed at a host 
employer location, only the staffing agency would count these jointly employed workers 
for purposes of the 100-employee threshold for coverage under this ETS. Although the 
staffing agency and the host employer would normally share responsibility for these 
workers under the OSH Act, this ETS raises unique concerns in that OSHA has set the 
threshold for coverage based primarily on administrative capacity for purposes of 
protecting workers as quickly as possible, as discussed above, and the staffing agency 
would typically handle administrative matters for these workers.  Thus, for purposes of 
the 100-employee threshold, only the staffing agency would count the jointly employed 
employees.  The host employer, however, would still be covered by this ETS if it has 100 
or more employees in addition to the employees of the staffing agency.  For enforcement 
purposes, traditional joint employer principles would apply where both employers are 
covered by the ETS, as illustrated further by the examples below.  See also 
https://www.osha.gov/temporaryworkers/.

On a typical multi-employer worksite such as a construction site, each company 
represented – the host employer, the general contractor, and each subcontractor – would 
only need to count its own employees, and the host employer and general contractor 
would not need to count the total number of workers at each site. That said, each 
employer must count the total number of workers it employs regardless of where they 
report for work on a particular day. Thus, for example, if a general contractor has more 
than 100 employees spread out over multiple construction sites, that employer is covered 
under this ETS even if it does not have 100 or more employees present at any one 
worksite.  Covering the employees of larger employers at multi-employer worksites 
would mitigate the spread of COVID-19 at the workplace even where not all employees 
are covered by this ETS because fully vaccinated employees (or unvaccinated employees 
wearing face coverings and submitting to weekly testing) would be less likely to spread 
the virus to unvaccinated workers at the site who are not covered by this ETS.
The determination as to whether a particular employer is covered by the standard 
should be made separately from whether individual employees are covered by the 
standard’s requirements, as described by paragraph (b)(3) (e.g., some employers may be 
covered but have no duties with respect to some of their employees under this standard). 
Some additional examples include:

If an employer has 75 part-time employees and 25 full-time employees, the 
employer would be within the scope of this ETS because it has 100 employees.

If an employer has 150 employees, 100 of whom work from their homes full-time 
and 50 of whom work in the office at least part of the time, the employer would 
be within the scope of this ETS because it has more than 100 employees.  

If an employer has 102 employees and only 3 ever report to an office location, 
that employer would be covered.  


If an employer has 150 employees, and 100 of them perform maintenance work in 
customers’ homes, primarily working from their company vehicles (i.e., mobile 
workplaces), and rarely or never report to the main office, that employer would 
also fall within the scope.   

If an employer has 200 employees, all of whom are vaccinated, that employer 
would be covered.

If an employer has 125 employees, and 115 of them work exclusively outdoors, 
that employer would be covered.

If a single corporation has 50 small locations (e.g., kiosks, concession stands) 
with at least 100 total employees in its combined locations, that employer would 
be covered even if some of the locations have no more than one or two employees 
assigned to work there.

If a host employer has 80 permanent employees and 30 temporary employees 
supplied by a staffing agency, the host employer would not count the staffing 
agency employees for coverage purposes and therefore would not be covered.  
(So long as the staffing agency has at least 100 employees, however, the staffing 
agency would be responsible for ensuring compliance with the ETS for the jointly 
employed workers.)

If a host employer has 110 permanent employees and 10 temporary employees 
from a small staffing agency (with fewer than 100 employees of its own), the host 
employer is covered under this ETS and the staffing agency is not.  

If a host employer has 110 permanent employees and 10 employees from a large 
staffing agency (with more than 100 employees of its own), both the host 
employer and the staffing agency are covered under this standard, and traditional 
joint employer principles apply.


Generally, in a traditional franchisor-franchisee relationship, if the franchisor has 
more than 100 employees but each individual franchisee has fewer than 100 
employees, the franchisor would be covered by this ETS but the individual 
franchises would not be covered.
As explained earlier, part of OSHA’s rationale in adopting the 100-employee 
threshold is to focus the ETS on companies that OSHA is confident will have sufficient 
administrative systems in place to comply quickly with the ETS. Thus, the ETS applies to 
all employers who have the requisite number of employees at any time this ETS is in 
effect. Along with employers that always have more than 100 employees, OSHA intends 
to cover employers that fluctuate above and below the 100-employee threshold during the 
term of the ETS because those employers will typically have already developed systems 
and capabilities for compliance; a decrease in the number of employees is therefore 
unlikely to make them less capable of compliance.  
The determination of whether an employer falls within the scope of this ETS 
based on number of employees should initially be made as of the effective date of the 
standard, as set out in paragraph (m)(1). If the employer has 100 or more employees on 
the effective date, this ETS applies for the duration of the standard. If the employer has 
fewer than 100 employees on the effective date of the standard, the standard would not 
apply to that employer as of the effective date. However, if that same employer 
subsequently hires more workers and hits the 100-employee threshold for coverage, the 
employer would then be expected to come into compliance with the standard’s 
requirements. Once an employer has come within the scope of the ETS, the standard 
continues to apply for the remainder of the time the standard is in effect, regardless of 
fluctuations in the size of the employer’s workforce. For example, an employer that has 
103 employees on the effective date of the standard, but then loses four within the next 
month, would continue to be covered by the ETS.  OSHA is confident that employers 

with 100 or more employees at any point while this ETS is in effect have the 
administrative capacity to comply with the ETS, even if the number of employees 
fluctuates somewhat above and below 100.
Paragraph (b)(2) of this ETS sets forth two exemptions to the standard.89 Under 
paragraph (b)(2)(i), this ETS does not apply to workplaces covered by the Safer Federal 
Workforce Task Force COVID-19 Workplace Safety: Guidance for Federal Contractors 
and Subcontractors (see Safer Federal Workforce Task Force, September 24, 2021). With 
limited exceptions, such as where a medical contraindication, disability, or sincerely held 
religious belief would prevent an employee from complying with certain provisions, 
those guidelines require covered contractors to ensure that all covered contractor 
employees (1) are fully vaccinated by December 8, 2021; (2) follow CDC guidelines for 
masks and physical distancing, including masking and distancing requirements based on 
the employee’s vaccination status and the level of community transmission of COVID-19 
where the workplace is located; and (3) designate a person to coordinate COVID-19 
workplace safety efforts at covered workplaces. Because covered contractor employees 
are already covered by the protections in those guidelines, OSHA has determined that 
complying with this standard in addition to the federal contractor guidelines is not 
necessary to protect covered contractor employees from a grave danger posed by 
COVID-19. Although there may be some respects in which the OSHA standard is 
somewhat more protective, such as providing paid leave for vaccination, the federal 
contractor guidelines are somewhat more protective in other respects, such as requiring 
89 Note that, in addition to the scope exceptions contained in the ETS itself, which are discussed in this 
section, there may be situations where the ETS does not apply by operation of the OSH Act. For example, 
the OSH Act does not apply to working conditions of employees with respect to which other Federal 
agencies have exercised their statutory authority to prescribe or enforce standards or regulations affecting 
occupational safety or health (see 29 U.S.C. 653(b)(1)). Moreover, the ETS does not apply where states 
with OSHA-approved occupational safety and health programs (“State Plans”) have coverage (see 29 
U.S.C. 667). State Plans must adopt and enforce COVID-19 requirements that are at least as effective as 
this ETS.  Finally, the ETS does not apply to state and local government employers in states without State 
Plans (see 29 U.S.C. 652(5)).

vaccination for everyone who does not have a right to an accommodation rather than 
allowing employees to submit to testing in lieu of vaccination. In essence, they are 
similar but slightly different schemes that provide roughly equivalent protection, and 
OSHA has determined that imposing a second set of similar protections on covered 
federal contractors by subjecting them to this ETS in addition to the federal contractor 
guidance is not necessary at this time to reduce a grave danger to covered contractor 
employees from COVID-19.
Under Executive Order 14043, every federal agency must implement a program 
requiring each of its federal employees to be vaccinated against COVID-19, except as 
required by law.  86 FR 50989. OSHA will regard a federal agency’s compliance with 
this requirement, and the related Safer Federal Workforce Task Force guidance issued 
under section 4(e) of Executive Order 13991 and section 2 of Executive Order 14043 
(including guidance on employer support in the form of paid time for vaccination and 
paid leave for post-vaccination recovery), as sufficient to meet its obligation to comply 
with this ETS under Section 19 of the OSH Act and Executive Order 12196. In essence, 
the federal government has chosen the mandatory vaccination option of this rule, and all 
federal employees are required to be fully vaccinated by the compliance date of this 
standard, except where entitled to a reasonable accommodation. The Safer Federal 
Workforce Task Force’s guidelines for vaccination verification are consistent with the 
ETS’s (see Safer Federal Workforce Task Force, October 11, 2021). Note, however, that 
under the OSH Act, the U.S. Postal Service is treated as a private employer, see 29 
U.S.C. 652(5), and it is therefore required to comply with this ETS in the same manner as 
any other employer covered by the Act. 
For similar reasons, paragraph (b)(2)(ii) provides that this ETS does not apply in 
settings where any employee provides healthcare services or healthcare support services 
while they are covered by the requirements of 29 CFR 1910.502. Section 1910.502 

requires a multi-layered suite of protections for employees covered by its requirements, 
including patient screening and management, facemasks or respirators, other personal 
protective equipment (PPE), limiting exposure to aerosol-generating procedures, physical 
distancing, physical barriers, cleaning, disinfection, ventilation, health screening and 
medical management, access to vaccination, and medical removal protection. Section 
1910.502 was carefully tailored to the healthcare workplaces it covers and, given the full 
suite of protections it requires, including (like this ETS) the provision of paid time for 
vaccination, OSHA has determined that it adequately protects the employees covered by 
its requirements from the grave danger posed by COVID-19. Therefore, complying with 
the additional requirements of this ETS is not necessary to protect those employees while 
they are covered by that standard’s protections. 
OSHA’s intent was to leave no coverage gaps between section 1910.502 and this 
ETS.  In other words, the purpose of paragraph (b)(2)(ii) is to ensure that all workers in 
healthcare and healthcare support jobs who are at grave danger from exposure to SARS-
CoV-2 are protected by either section 1910.502 or this ETS while performing their jobs. 
Therefore, it will be necessary for employers with employees covered by section 
1910.502 to determine if they also have employees covered by this ETS. For example, a 
healthcare employer with more than 100 employees that has non-hospital ambulatory 
care facilities that are exempt under section 1910.502(a)(2)(iii) (for non-hospital 
ambulatory care settings where all non-employees are screened prior to entry and those 
with suspected or confirmed COVID-19 are prohibited from entry) would be required to 
protect the employees in those ambulatory care facilities under this ETS. Similarly, a 
retail pharmacy chain that operates a series of ambulatory care clinics embedded in its 
stores, where those embedded clinics are the only areas in the store that are covered under 
1910.502 (see section 1910.502(a)(3)(i)), would have to ensure that the remainder of its 

employees in other parts of its stores are protected under this ETS if the company has 100 
or more employees company-wide, including those covered under 1910.502.
Paragraph (b)(3) provides that, even where the standard applies to a particular 
employer, its requirements do not apply to employees: (i) who do not report to a 
workplace where other individuals such as coworkers or customers are present; (ii) while 
working from home; or (iii) who work exclusively outdoors.  OSHA intends these 
provisions to exempt workplace settings where workers do not interact indoors with other 
individuals, and to exempt work performed in the employee’s home regardless of 
whether other individuals may be present in the home.  
OSHA has determined that the provisions of this ETS are not necessary to protect 
employees from COVID-19 when they are working alone, or when they are working 
from home (see Grave Danger, Section III.A. of this preamble). These two provisions 
may overlap in some cases, but also can apply to slightly different situations. Paragraph 
(b)(3)(i) would apply to work in a solitary location, such as a research station where only 
one person (the employee) is present at a time. In that situation, the employee is not 
exposed to any potentially infectious individuals at work. Paragraph (b)(3)(ii) would 
apply to employees working in their homes, regardless of whether other individuals who 
are not employees of the same employer are present. In a home telework environment, 
many factors – such as the presence of family members and other individuals unrelated to 
the employee’s work, who may not be fully vaccinated or wearing face coverings – may 
be beyond the employer’s control. Employees are typically in the best position to manage 
COVID-19 risks in their homes. Note that the exemption in paragraph (b)(3)(ii) only 
applies to employees while they are working from home. An employee who switches 
back and forth from teleworking to working in a setting where other people are present 
(e.g., an office) is covered by this ETS and must be vaccinated if required by the 
employer.  If the employer does not require vaccination, the teleworking employee must 

either be vaccinated or complete testing and wear a face covering in accordance with 
their employer’s policy under paragraph (d). How often such an employee must be tested 
for COVID-19 and wear a face covering, however, depends on how often they report to 
the office (see, e.g., paragraph (g)(1)(ii)). 
Paragraph (b)(3)(iii) provides that, even if a particular employer is covered by the 
standard, the requirements of the standard do not apply to employees who work 
exclusively outdoors. OSHA has determined that COVID-19 does not pose a grave 
danger to employees who work exclusively outdoors because of the significantly reduced 
likelihood of transmission in outdoor settings. As discussed in more detail in Grave 
Danger (Section III.A. of this preamble), the record contains very little evidence of 
COVID-19 transmission in outdoor settings. And, in studies where clusters were 
identified in worksites characterized as being outdoors, the study authors were not able to 
identify specific incidents that led to transmission. In addition, workplaces characterized 
as “outdoors” may in fact involve significant time spent indoors. For example, on a 
construction site, workers inside a partially complete structure are not truly outdoors, and 
some individuals on a construction site may spend significant amounts of time in a 
construction trailer where other individuals are present. Workers at outdoor locations may 
also routinely share work vehicles. These indoor exposures could account for COVID-19 
clusters among employees at worksites otherwise characterized as being outdoors.  And 
employees whose outdoor time is interrupted by the indoor periods will still be subject to 
the requirements in this ETS.
Studies of athletic teams further indicate that evidence of COVID-19 clusters 
among workers characterized as working outdoors could actually be caused by indoor 
exposures. Even where athletes were in very close contact during outdoor exposures on 
the playing field, the study authors could not identify a single case of COVID-19 
transmission between teams that occurred outdoors (see Mack et al., January 29, 2021; 

Egger et al., March 18, 2021; Jones et al., February 11, 2021). For all of these reasons, 
and as discussed more fully in Grave Danger (Section III.A. of this preamble), OSHA 
has determined that COVID-19 does not pose a grave danger to employees who work 
exclusively outdoors.
As a practical matter, determining the applicability of paragraph (b)(3)(iii) 
depends on the working conditions of individual employees. For example, if a 
landscaping contractor has at least 100 employees and is not covered by the exemptions 
in paragraph (b)(2), the standard applies to that employer even if a majority of the 
company’s employees work exclusively outdoors. The standard’s protections would only 
apply to employees working in indoor settings around other individuals (other than 
telework in their own homes), not to those employees working exclusively outdoors. In 
some cases, it may be true that the standard applies to an employer but the employer 
would not have to implement its provisions at all because all of its employees fall within 
exemptions in paragraph (b)(3). Going back to the example of the large landscaping 
contractor, if all indoor workers either work from home or in locations where no other 
individuals are present, and all outdoors workers work exclusively outdoors and do not 
drive to worksites together in a company vehicle, the employer would be covered by the 
ETS but not required to comply with its provisions.
An employee will only be covered by the exemption in paragraph (b)(3)(iii) if the 
employee works exclusively outdoors. Thus, an employee who works indoors on some 
days and outdoors on other days would not be exempt from the requirements of this ETS. 
Likewise, if an employee works primarily outdoors but routinely occupies vehicles with 
other employees as part of work duties, that employee is not covered by the exemption in 
paragraph (b)(3)(iii). However, if an employee works outdoors for the duration of every 
workday except for de minimis use of indoor spaces where other individuals may be 
present – such as a multi-stall bathroom or an administrative office – that employee 

would be considered to work exclusively outdoors and covered by the exemption under 
paragraph (b)(3)(iii) as long as time spent indoors is brief, or occurs exclusively in the 
employee’s home (e.g., a lunch break at home).  Extremely brief periods of indoor work 
would not normally expose employees to a high risk of contracting COVID-19; however, 
OSHA will look at cumulative time spent indoors to determine whether that time is de 
minimis.  Thus, if there are several brief periods in a day when an employee goes inside, 
OSHA will total those periods of time when determining whether the exception for 
exclusively outdoors work applies.
Finally, to qualify for this exception, the employee’s work must truly occur 
“outdoors,” which would not include buildings under construction where substantial 
portions of the structure are in place, such as walls and ceiling elements that would 
impede the natural flow of fresh air at the worksite. Workplaces that are truly outdoors 
typically do not include any of the characteristics that normally enable transmission of 
SARS-CoV-2 to occur, such as poor ventilation, enclosed spaces, and crowding. As 
discussed in Bulfone et al. (November 29, 2020), the lower risk of transmission in 
outdoor settings (i.e., open air or structures with only one wall) is likely due to increased 
ventilation with fresh air and a greater ability to maintain physical distancing (see Grave 
Danger, Section III.A. of this preamble, for more information on risk of transmission 
outdoors).  
References:
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Bulfone TC et al. (2020, November 29). Outdoor Transmission of SARS-CoV-2 and 
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29, 2020)
Centers for Disease Control and Prevention (CDC). (2021, August 26). Delta Variant: 
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Champredon D et al. (2021, May 12). Modelling approach to assessing risk of 
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Bureau, May 2021)
C.  Definitions
Paragraph (c) of the ETS provides definitions of terms used in the section.
 “Assistant Secretary” means the Assistant Secretary of Labor for Occupational 
Safety and Health, U.S. Department of Labor, or designee. This definition provides 
clarification about who can request and receive records specified in paragraph (l)(3) of 
this section. A designee includes a representative conducting an inspection or an 
investigation.
“COVID-19 (Coronavirus Disease 2019)” means the disease caused by SARS-
CoV-2 (severe acute respiratory syndrome coronavirus 2). SARS-CoV-2 is a highly 
transmissible virus that spreads primarily through the respiratory droplets that are 
produced when an infected person coughs, sneezes, sings, talks, or breathes. The nature 
of the disease, variants of SARS-CoV-2, disease transmission, and associated health 
effects are all described in great detail in Grave Danger (Section III.A. of this preamble). 

For clarity and ease of reference, the ETS also uses the term “COVID-19” when 
describing exposures or potential exposures to SARS-CoV-2. The requirements of the 
ETS are intended to address the grave danger of exposure to COVID-19 in the 
workplace.
A “COVID-19 test” means a test for SARS-CoV-2 that is: (1) cleared, approved, 
or authorized, including in an Emergency Use Authorization (EUA), by the U.S. Food 
and Drug Administration (FDA) to detect current infection with the SARS-CoV-2 virus 
(e.g., a viral test); (2) administered in accordance with the authorized instructions; and (3) 
not both self-administered and self-read unless observed by the employer or an 
authorized telehealth proctor. Examples of tests that satisfy this requirement include tests 
with specimens that are processed by a laboratory (including home or on-site collected 
specimens which are processed either individually or as pooled specimens), proctored 
over-the-counter tests, point of care tests, and tests where specimen collection and 
processing is either done or observed by an employer. 
Under paragraph (g), employees who are not fully vaccinated must be tested for 
COVID-19. When an employee must be tested, the test is considered acceptable only if 
the test and the administration of the test satisfy the definition of COVID-19 test in this 
standard. 
COVID-19 tests can broadly be divided into two categories, diagnostic tests and 
antibody tests. Diagnostic tests detect parts of the SARS-CoV-2 virus and can be used to 
diagnose current infection. On the other hand, antibody tests look for antibodies in the 
immune system produced in response to SARS-CoV-2, and are not used to diagnose an 
active COVID-19 infection. Antibody tests do not meet the definition of COVID-19 test 
for the purposes of this ETS. 
Diagnostic tests for current infection fall into two categories: nucleic acid 
amplification tests (NAATs) and antigen tests. NAATs are a type of molecular test that 

detect genetic material (nucleic acids); NAATs for COVID-19 identify the ribonucleic 
acid (RNA) sequences that comprise the genetic material of the virus. NAATs can 
reliably detect small amounts of SARS-CoV-2 and are unlikely to return a false-negative 
result. NAATs use many different methods to detect the virus, including reverse 
transcription-polymerase chain reaction (RT-PCR), which is a high-sensitivity, high-
specificity90 test for diagnosing SARS-CoV-2 infection. Other types of NAATs that use 
isothermal amplification methods include nicking endonuclease amplification reaction 
(NEAR), transcription mediated amplification (TMA), loop-mediated isothermal 
amplification (LAMP), helicase-dependent amplification (HDA), clustered regularly 
interspaced short palindromic repeats (CRISPR), and strand displacement amplification 
(SDA) (CDC, June 14, 2021).
Most NAATs need to be processed in a laboratory with variable time to receive 
results (approximately 1–2 days), but some NAATs are point-of-care tests with results 
available in about 15–45 minutes. As of October 14, 2021, 264 molecular tests (NAATs) 
and collection devices have EUA from the FDA for COVID-19 (FDA, October 14, 
2021b). These tests may be acceptable under the ETS.  
Antigen tests may also meet the definition of COVID-19 test under this standard. 
Antigen tests indicate current infection by detecting the presence of a specific viral 
antigen. Most can be processed at the point of care with results available in about 15-30 
minutes. Antigen tests generally have similar specificity to, but are less sensitive than, 
NAATs (CDC, October 7, 2021). As of October 14, 2021, thirty-seven antigen tests have 
EUA from the FDA for COVID-19 (FDA, October 14, 2021a). These tests may be 
acceptable under the ETS.
90 Test sensitivity indicates the ability of a test to correctly identify people who have a disease.  Test 
specificity indicates the ability of a test to correctly identify people who do not have a disease. A test with 
high sensitivity and high specificity minimizes inaccurate results.

Most antigen tests and some NAATs are conducted at the point of care, which 
means the test processing and result reading is performed at or near the place where a 
specimen is collected so that results can be obtained within minutes rather than hours or 
days. Rapid point-of-care tests are administered in various settings operating under a 
Clinical Laboratory Improvement Amendments of 1988 (CLIA) certificate of waiver, 
such as physician offices, urgent care facilities, pharmacies, school health clinics, 
workplace health clinics, long-term care facilities and nursing homes, and at temporary 
locations, such as drive-through sites managed by local health organizations (FDA, 
November 16, 2020).
To be a valid COVID-19 test under this standard, a test may not be both self-
administered and self-read unless observed by the employer or an authorized telehealth 
proctor. OSHA included the requirement for some type of independent confirmation of 
the test result in order to ensure the integrity of the result given the “many social and 
financial pressures for test-takers to misrepresent their results” (Schulte et al., May 19, 
2021). This independent confirmation can be accomplished in multiple ways, including 
through the involvement of a licensed healthcare provider or a point-of-care test provider. 
If an over-the-counter (OTC) test is being used, it must be used in accordance with the 
authorized instructions. The employer can validate the test through the use of a proctored 
test that is supervised by an authorized telehealth provider. Alternatively, the employer 
could proctor the OTC test itself.   
Employers have the flexibility to select the testing scenario that is most 
appropriate for their workplace. Some employees and employers may rely on testing that 
is conducted by a healthcare provider (e.g., doctor or nurse) who arranges for the 
specimen to be analyzed at a laboratory or at a point-of-care testing location (e.g., a 
pharmacy). The involvement of licensed or accredited healthcare providers allows 
employers to have a high degree of confidence in the suitability of the test and the test 

results. Some large employers who set up their own on-site testing program may partner 
with a healthcare organization (e.g., a local hospital or clinic) or rely on a licensed 
healthcare provider to help obtain a CLIA certificate of waiver. Other employers may 
simply require that employees perform and read their own OTC test while an authorized 
employee observes the administration and reading of the test to ensure that a new test kit 
was used and that the test was administered properly (e.g., nostrils were swabbed), and to 
witness the test result. 
Due to the potential for employee misconduct (e.g., falsified results), tests that are 
both self-administered and self-read are not acceptable unless they are observed by the 
employer or an authorized telehealth proctor. Some COVID-19 tests are authorized by 
the FDA to be performed only with the supervision of a telehealth proctor, which is 
someone who is trained to observe sample collection and provide instructions and result 
interpretation assistance to individuals using the test. The term “authorized telehealth 
proctor” refers to proctors who follow the requirements for proctoring specified by the 
FDA authorization. For a more detailed discussion on COVID-19 testing requirements 
under this ETS, see the Summary and Explanation for paragraph (g) (Section VI.G. of 
this preamble). 
A “face covering” means a covering that: (1) completely covers the nose and 
mouth; (2) is made with two or more layers of a breathable fabric that is tightly woven 
(i.e., fabrics that do not let light pass through when held up to a light source); (3) is 
secured to the head with ties, ear loops, or elastic bands that go behind the head. If gaiters 
are worn, they should have two layers of fabric or be folded to make two layers; (4) fits 
snugly over the nose, mouth, and chin with no large gaps on the outside of the face; and 
(5) is a solid piece of material without slits, exhalation valves, visible holes, punctures, or 
other openings. This definition includes clear face coverings or cloth face coverings with 
a clear plastic panel that, despite the non-cloth material allowing light to pass through, 

otherwise meet this definition and which may be used to facilitate communication with 
people who are deaf or hard-of-hearing or others who need to see a speaker’s mouth or 
facial expressions to understand speech or sign language respectively.  Face coverings 
can be manufactured or homemade, and they can incorporate a variety of designs, 
structures, and materials.  Face coverings provide variable levels of protection based on 
their design and construction.
As explained in paragraph (i), face covering use is required based on an 
employee’s vaccination status. The criteria in the definition help to ensure that face 
coverings that are worn by workers who are not fully vaccinated will provide effective 
source control and some degree of personal protection. Source control means reducing 
the spread of large respiratory droplets to others by covering a person’s mouth and nose. 
The personal protection afforded by face coverings, as well as the benefits and necessity, 
are described in the Summary and Explanation for paragraph (i) (Section VI.I. of this 
preamble).
Face coverings differ from facemasks and respirators, which are also defined in 
paragraph (c) of this section. Face coverings, unlike facemasks and respirators, are not 
considered to be personal protective equipment (PPE) under OSHA’s general PPE 
standard (29 CFR 1910.132), as discussed in the Summary and Explanation for paragraph 
(i) (Section VI.I. of this preamble).   
Lastly, face coverings as required by this standard do not have to meet a 
consensus standard, although face coverings that adhere to such consensus standards, 
with design and construction specifications, meet the definition and may offer both 
greater protection and the confidence that at least a minimum level of protection has been 
provided. The National Institute for Occupational Safety and Health (NIOSH) 
recommends that employers and workers who want a face covering that provides a 
known level of protection use face coverings that meet a new standard, called Workplace 

Performance and Workplace Performance Plus masks, for workplaces. As discussed in 
the Summary and Explanation for paragraph (i) (Section VI.I. of this preamble), the new 
NIOSH criteria and the ASTM Specification for Barrier Face Coverings, F3502-21 
(ASTM Standard) provide a greater level of source control performance for workers 
when wearing the face covering according to manufacturer’s instructions.  The NIOSH 
criteria require that face coverings conform to the ASTM Standard and meet additional 
quantitative leakage criteria. Although not required by the standard, OSHA notes that 
face coverings that meet ASTM F3502-21 requirements and the new NIOSH criteria may 
offer a higher level of source control and wearer protection than those face coverings that 
do not meet a consensus standard.  
A “facemask” means a surgical, medical procedure, dental, or isolation mask that 
is FDA-cleared, authorized by an FDA EUA, or offered or distributed as described in an 
FDA enforcement policy. Facemasks may also be referred to as “medical procedure 
masks.” This definition provides clarification about the exception to the face covering 
requirement under paragraph (i)(1)(iii) that permits facemask use in lieu of face 
coverings. OSHA notes that facemasks are not respirators, which are also defined in this 
section.
Facemasks provide protection against exposure to splashes, sprays, and spatter of 
body fluids. Facemasks offer both source control, as defined in this section under face 
coverings, and protection for the wearer. OSHA has previously established that 
facemasks are essential PPE for employees in healthcare, under both the general PPE 
standard (29 CFR part 1910.132) and the Bloodborne Pathogens standard (29 CFR part 
1910.1030). Although not required, the Summary and Explanation for paragraph (i) 
(Section VI.I. of this preamble) addresses their inclusion in this standard. Additional 
information on such facemasks can be found in relevant FDA guidance. 

“Fully vaccinated” means (i) a person’s status 2 weeks after completing primary 
vaccination with a COVID-19 vaccine with, if applicable, at least the minimum 
recommended interval between doses in accordance with the approval, authorization, or 
listing that is: (A) approved or authorized for emergency use by the FDA; (B) listed for 
emergency use by the World Health Organization (WHO); or (C) administered as part of 
a clinical trial at U.S. site, if the recipient is documented to have of primary vaccination 
with the “active” (not placebo) COVID-19 vaccine candidate, for which vaccine efficacy 
has been independently confirmed (e.g., by a data and safety monitoring board) or if the 
clinical trial participant from the U.S. sites had received a COVID-19 vaccine that is 
neither approved nor authorized for use by the FDA but is listed for emergency use by the 
WHO. Currently-authorized FDA vaccines include Janssen (Johnson & Johnson), which 
is a single-dose primary vaccination, and Pfizer-BioNTech and Moderna, which have a 
two-dose primary vaccination series. This definition is consistent with the CDC definition 
of fully vaccinated (CDC, September 16, 2021).
The definition of “fully vaccinated” also means a person’s status 2 weeks after 
receiving the second dose of any combination of two doses of a COVID-19 vaccine that 
is approved or authorized by the FDA, or listed as a two-dose series by the WHO (i.e., 
heterologous primary series of such vaccines, receiving doses of different COVID-19 
vaccines as part of one primary series). The second dose of the series must not be 
received earlier than 17 days (21 days with a 4-day grace period) after the first dose 
(CDC, October 15, 2021). OSHA has included this because people who have received a 
heterologous primary vaccination series (including mixing of mRNA, adenoviral, and 
mRNA plus adenoviral products) are considered by the CDC to also meet this definition. 
OSHA considers a vaccination series that meets the definition in subparagraph (ii) to be a 
primary vaccination for purposes of the requirements to support vaccination in paragraph 
(f). 

The employer obligations under the ETS differ based on whether each employee 
is fully vaccinated. This definition is relevant to the definition of mandatory vaccination 
policy, in this paragraph (c), as well as the provisions under paragraph (d) regarding 
written vaccination policy requirements and relevant procedures for workers who are 
fully vaccinated. Paragraph (e)(2) also addresses fully vaccinated employees, including 
the determination of vaccination status and acceptable forms of proof. Lastly, the 
definition provides clarity with regard to the requirements of paragraphs (g) and (i) 
respectively, which contain requirements for regular COVID-19 testing and face covering 
use among employees who are not fully vaccinated. 
Paragraph (e) requires employers to determine each employee’s vaccination 
status, including whether they are fully or partially vaccinated. By “partially vaccinated,” 
OSHA means someone who has started a primary vaccination series but not completed it 
(e.g., has received one dose of a two-dose series) or has completed their primary 
vaccination and two weeks have not elapsed since the last dose of the primary 
vaccination.
A “mandatory vaccination policy” is an employer policy requiring each 
employee to be fully vaccinated. To meet the definition of a mandatory vaccination 
policy, the policy must require: vaccination of all employees, including vaccination of all 
new employees as soon as practicable, other than those employees (1) for whom a 
vaccine is medically contraindicated, (2) for whom medical necessity requires a delay in 
vaccination,91 or (3) who are legally entitled to a reasonable accommodation under 
federal civil rights laws because they have a disability or sincerely held religious beliefs, 
practices, or observances that conflict with the vaccination requirement. OSHA intends 
that “employee,” as used in this definition, includes only employees that are covered by 
91 As defined by CDC’s informational document, Summary Document for Interim Clinical Considerations 
for Use of COVID-19 Vaccines Currently Authorized in the United States (CDC, September 29, 2021).

this ETS and does not include employees who are excluded from coverage under 
paragraph (b)(3). 
Paragraph (d)(1) of the standard requires an employer to establish, implement, 
and enforce a written mandatory vaccination policy that meets this definition. The 
benefits of vaccination, including the effectiveness of vaccination mandates, are 
discussed in Grave Danger (Section III.A. of this preamble) and Need for the ETS 
(Section III.B. of this preamble). 
OSHA recognizes that vaccination policies may vary, as indicated in paragraph 
(d)(2). Any policy that permits the employee to choose between vaccination and COVID-
19 testing and face covering use would not be considered a mandatory vaccination policy 
under paragraph (d)(1), although such policy is permissible under paragraph (d)(2). In 
some cases, employers may implement vaccination policies that differ by location or type 
of business operation and thus the application of paragraph (d)(2) might vary across an 
employer’s workforce. This is discussed in greater detail in the Summary and 
Explanation for paragraph (d) (Section VI.D. of this preamble). 
A “respirator” is a type of PPE that is certified by NIOSH under 42 CFR part 84 
or is authorized under an EUA by the FDA. These specifications are intended to ensure 
some consistent level of testing, approval, and protection and to prevent the use of 
counterfeit respirators that will not offer adequate protection, which is important because 
respirators are intended to protect the wearer when directly exposed to hazards. 
Respirators protect against airborne hazards by removing specific air contaminants from 
the ambient (surrounding) air or by supplying breathable air from a safe source. Common 
types of respirators include filtering facepiece respirators (e.g., N95), elastomeric 
respirators, and powered air-purifying respirators (PAPRs). Face coverings, facemasks, 
and face shields are not respirators.

As stated above, there are various types of respirators that would fall within this 
definition. A filtering facepiece respirator (FFR) is a negative-pressure particulate 
respirator with a non-replaceable filter as an integral part of the facepiece or with the 
entire facepiece composed of the non-replaceable filtering medium. N95 FFRs are the 
most common type of FFR and are the type of respirator most often used to control 
exposures to infections transmitted via the airborne route. When properly worn, N95 
FFRs filter at least 95% of airborne particles. An elastomeric respirator is a tight-fitting 
respirator with a facepiece that is made of synthetic or rubber material that permits it to 
be disinfected, cleaned, and reused according to the manufacturer’s instructions. 
Elastomeric respirators are equipped with replaceable cartridges, canisters, or filters. 
Lastly, a powered air-purifying respirator (PAPR) is an air-purifying respirator that uses 
a blower to force the ambient air through air-purifying elements to the inlet covering. 
This standard does not require the use of respirators. This definition is included 
because it relates to paragraph (i)(1)(iii), which exempts employees from wearing face 
coverings when they are wearing respirators or facemasks. In addition, paragraph (i)(4) 
requires employers to permit employees to wear a respirator instead of a face covering 
and permits employers to provide respirators to their employees, instead of face 
coverings. When respirators are used pursuant to paragraph (i)(4), the employer must also 
comply with § 1910.504, the Mini Respiratory Protection Program.
NIOSH has developed a set of regulations in 42 CFR part 84 for testing and 
certifying non-powered, air-purifying, particulate-filter respirators. To help address 
concerns about availability during the COVID-19 pandemic, the FDA has issued EUAs 
for certain PPE products, including respiratory protective devices such as respirators. For 
the purposes of this standard, respirators certified by NIOSH, under 42 CFR part 84 or 
authorized under an EUA by the FDA meet the definition. Additional information on 
such respirators can be found in relevant FDA and NIOSH guidance. 

A “workplace” is a physical location (e.g., fixed, mobile) where the employer’s 
work or operations are performed. It does not include an employee’s residence, even if 
the employee is teleworking from their residence. Examples of fixed locations include: 
offices, retail establishments, co-working facilities, and factories or manufacturing 
facilities. A workplace includes the entire site (including outdoor and indoor areas, a 
structure or a group of structures) or an area within a site where work or any work-related 
activity occurs (e.g., taking breaks, going to the restroom, eating, entering or exiting 
work). The workplace includes the entirety of any space associated with the site (e.g., 
workstations, hallways, stairwells, breakrooms, bathrooms, elevators) and any other 
space that an employee might occupy in arriving, working, or leaving. Examples of 
employees who have mobile workplaces include maintenance and repair technicians who 
go to homes or businesses to provide repair services, or those who provide delivery 
services. 
References:
Centers for Disease Control and Prevention (CDC). (2021, June 14). Nucleic Acid 
Amplification Tests. https://www.cdc.gov/coronavirus/2019-ncov/lab/naats.html. (CDC, 
June 14, 2021).
Centers for Disease Control and Prevention (CDC). (2021, September 16). When You’ve 
Been Fully Vaccinated: How to Protect Yourself and Others. 
https://www.cdc.gov/coronavirus/2019-ncov/vaccines/fully-vaccinated.html. (CDC, 
September 16, 2021)
Centers for Disease Control and Prevention (CDC). (2021, September 29). Summary 
Document for Interim Clinical Considerations for Use of COVID-19 Vaccines Currently 
Authorized in the United States. https://www.cdc.gov/vaccines/covid-
19/downloads/summary-interim-clinical-considerations.pdf. (CDC, September 29, 2021)
Centers for Disease Control and Prevention (CDC). (2021, October 7). Interim Guidance 
for SARS-CoV-2 Testing in Non-Healthcare Workplaces. 
https://www.cdc.gov/coronavirus/2019-ncov/community/organizations/testing-non-
healthcare-workplaces.html. (CDC, October 7, 2021)
Centers for Disease Control and Prevention (CDC). (2021, October 15). Interim Public 
Health Recommendations for Fully Vaccinated People. 
https://www.cdc.gov/coronavirus/2019-ncov/vaccines/fully-vaccinated-guidance.html. 
(CDC, October 15, 2021)

Equal Employment Opportunity Commission (EEOC). (2021, October 25). What You 
Should Know About COVID-19 and the ADA, the Rehabilitation Act, and Other EEO 
Laws. https://www.eeoc.gov/wysk/what-you-should-know-about-covid-19-and-ada-
rehabilitation-act-and-other-eeo-laws. (EEOC, October 25, 2021)
Food and Drug Administration (FDA). (2020, November 16). COVID-19 Test Settings: 
FAQs on Testing for SARS-CoV-2. https://www.fda.gov/medical-devices/coronavirus-
covid-19-and-medical-devices/covid-19-test-settings-faqs-testing-sars-cov-2. (FDA, 
November 16, 2020) 
Food and Drug Administration (FDA). (2021a, October 14). In Vitro Diagnostics EUAs - 
Antigen Diagnostic Tests for SARS-CoV-2. https://www.fda.gov/medical-
devices/coronavirus-disease-2019-covid-19-emergency-use-authorizations-medical-
devices/in-vitro-diagnostics-euas-antigen-diagnostic-tests-sars-cov-2. (FDA, October 14, 
2021a)
Food and Drug Administration (FDA). (2021b, October 14)). In Vitro Diagnostics EUAs 
- Molecular Diagnostic Tests for SARS-CoV-2. https://www.fda.gov/medical-
devices/coronavirus-disease-2019-covid-19-emergency-use-authorizations-medical-
devices/in-vitro-diagnostics-euas-molecular-diagnostic-tests-sars-cov-2. (FDA, October 
14, 2021b)
Schulte P et al. (2021, May 19). Proposed Framework for Considering SARS-CoV-2 
Antigen Testing of Unexposed Asymptomatic Workers in Selected Workplaces. J Occup 
Environ Med. 2021 Aug; 63(8): 646–656. Published online 2021, May 19. 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8327768/. (Schulte et al., May 19, 2021)
D. Employer Policy on Vaccination
Vaccination is a vital tool to reduce the presence and severity of COVID-19 cases 
in the workplace, in communities, and in the nation as a whole. Despite the robust 
protection against COVID-19 that vaccination affords, millions of eligible individuals 
have not yet been vaccinated. Current efforts to increase the proportion of the U.S. 
population that is fully vaccinated against COVID-19 are critical to ending the COVID-
19 pandemic (CDC, September 15, 2021). As described more fully in Need for the 
ETS (Section III.B. of this preamble), mandatory vaccination policies work. Therefore, 
OSHA has determined that requiring or strongly encouraging vaccination – the most 
effective and efficient control for reducing COVID-19 – is key to ensuring the protection 
of workers against the grave danger of exposure to SARS-CoV-2 in the workplace (see 
Grave Danger, Section III.A. of this preamble). Therefore, this ETS requires employers 
to adopt mandatory vaccination policies for their workplaces, with an exception for 

employers that instead adopt a policy allowing employees to elect to undergo regular 
COVID-19 testing and wear a face covering at work in lieu of vaccination.  In Need for 
the ETS (Section III.B of this preamble), OSHA explains its rationale for providing the 
exception.
Paragraph (d) of this ETS is a critical element in ensuring employees’ protection, 
as it requires covered employers to develop, implement, and enforce written policies on 
COVID-19 vaccination for their workforces. Paragraph (d)(1) requires the employer to 
establish, implement, and enforce a written mandatory vaccination policy. As defined in 
paragraph (c), a mandatory vaccination policy is an employer policy requiring each 
employee to be fully vaccinated. Such a policy must require vaccination of all employees, 
other than those employees who fall into one of three categories: (1) those for whom a 
vaccine is medically contraindicated, (2) those for whom medical necessity requires a 
delay in vaccination, or (3) those who are legally entitled to a reasonable accommodation 
under federal civil rights laws because they have a disability or sincerely held religious 
beliefs, practices, or observances that conflict with the vaccination requirement. The 
policy must also require all new employees to be vaccinated as soon as practicable. 
Paragraph (d)(2) is a limited exemption from the mandatory vaccination policy 
requirement. As discussed in Need for the ETS (Section III.B. of this preamble), 
vaccination mandates are effective at increasing overall vaccination rates and protecting 
employees and, therefore, the agency encourages all employers to implement a 
mandatory vaccination policy. Under paragraph (d)(2), however, employers can avoid the 
mandate in paragraph (d)(1) if the employer establishes, implements, and enforces a 
written policy allowing any employee not subject to a mandatory vaccination policy to 
choose either to: (1) be fully vaccinated against COVID-19 or (2) provide proof of 
regular testing for COVID-19 in accordance with paragraph (g) of this section and wear a 
face covering in accordance with paragraph (i). An employer who chooses to operate 

under paragraph (d)(2), however, must still offer the support for vaccination required 
under paragraph (f) and may not prevent employees from getting vaccinated. Adopting a 
policy under paragraph (d)(2) simply means that employees themselves may choose not 
to get vaccinated, in which case they must get tested and wear face coverings per the 
requirements of the standard.
OSHA recognizes there may be employers who develop and implement partial 
mandatory vaccination policies, i.e., that apply to only a portion of their workforce. An 
example might be a retail corporation employer who has a mixture of staff working at the 
corporate headquarters, performing intermittent telework from home, and working in 
stores serving customers. In this type of situation, the employer may choose to require 
vaccination of only some subset of its employees (e.g., those working in stores), and to 
treat vaccination as optional for others (e.g., those who work from headquarters or who 
perform intermittent telework). This approach would comply with the standard so long as 
the employer complies in full with paragraph (d)(1) and (d)(2) for the respective groups.  
OSHA uses the terms establish, implement, and enforce in paragraph (d) to 
emphasize that it is necessary for an employer to first determine its policy and create a 
written record of that policy. After determining the policy, an employer must then ensure 
that it is following the policy, as laid out in its written plan. Finally, employers must 
ensure that they enforce the requirements of their policies with respect to their workforce, 
through training and the use of such mechanisms as work rules and the workplace 
disciplinary system, if necessary. These requirements apply to the written policy required 
under paragraph (d), whether employers choose to implement the mandatory vaccination 
policy under paragraph (d)(1) or utilize the exemption under paragraph (d)(2) for all or a 
portion of their workforce.
To ensure that employers’ vaccination policies under paragraph (d) are 
comprehensive and effective, the policies should address all of the applicable 

requirements in paragraphs (e)-(j) of this standard, including: requirements for COVID-
19 vaccination; applicable exclusions from the written policy (e.g., medical 
contraindications, medical necessity requiring delay in vaccination, or reasonable 
accommodations for workers with disabilities or sincerely held religious beliefs); 
information on determining an employee’s vaccination status and how this information 
will be collected (as described in paragraph (e)); paid time and sick leave for vaccination 
purposes (as described in paragraph (f)); notification of positive COVID-19 tests and 
removal of COVID-19 positive employees from the workplace (as described in paragraph 
(h)); information to be provided to employees (pursuant to paragraph (j) – e.g., how the 
employer is making that information available to employees); and disciplinary action for 
employees who do not abide by the policy. In addition to addressing the requirements of 
paragraphs (e)-(j) of this standard, the employer should include all relevant information 
regarding the policy’s effective date, who the policy applies to, deadlines (e.g., for 
submitting vaccination information, for getting vaccinated), and procedures for 
compliance and enforcement, all of which are necessary components of an effective plan. 
Having a comprehensive written policy will provide a solid foundation for an effective 
COVID-19 vaccination program, while making it easier for employers to inform 
employees about the program-related policies and procedures, as required under 
paragraph (j)(1). 
If an employer utilizes the exemption under paragraph (d)(2), its workplace may 
contain employees who are vaccinated and unvaccinated. This might be the case even for 
employers who establish a mandatory vaccination policy under paragraph (d)(1); for 
example, an employer with a mandatory vaccination policy might have employees who 
cannot be vaccinated for medical reasons. Given the additional safety protocols under this 
standard for individuals who are not fully vaccinated (see paragraphs (g) and (i)), an 
employer who has both vaccinated and unvaccinated employees will have to develop and 

include the relevant procedures for two sets of employees in the written policy. The 
procedures for those who are fully vaccinated should contain all the information 
previously discussed relevant to establishing, implementing, and enforcing a 
comprehensive written policy. However, the procedures applicable to employees who are 
not fully vaccinated (i.e., those who decline vaccination, those who are unable to receive 
vaccination and are, absent undue hardship to their employers, entitled to reasonable 
accommodation) and those who are unable to provide proof of vaccination as required by 
paragraph (e) (who must be treated as not fully vaccinated), must include COVID-19 
testing and face covering use as required by paragraphs (g) and (i), respectively, unless 
the reasonable accommodation from vaccination removes the employee from the scope of 
§ 1910.501 (e.g., full time telework consistent with one of the exceptions in § 
1910.501(b)(3)). OSHA intends that such an employer will develop one written plan that 
includes different policies and procedures for vaccinated and unvaccinated employees. 
The requirements of paragraphs (e), (f), (h), and (j) should be addressed in the policy 
regardless of the vaccination requirements adopted by the employer. 
As with all elements of the written plan, an effective written plan will explain the 
testing requirements contained in paragraph (g) for unvaccinated employees, and how the 
employer will implement and enforce those policies. As described in paragraph (g)(1), 
the testing requirements differ for employees who report at least once every 7 days to a 
workplace compared to those who do not. Thus, the policy may describe different testing 
procedures for those different groups of employees, depending on how often they 
physically report to a workplace where other individuals are present. As described in 
paragraph (g)(3), the testing requirements are temporarily suspended for 90 days 
following a positive COVID-19 test or diagnosis.  Thus, the employer’s policy and 
procedures to implement this temporary suspension of testing should be included in their 
written workplace policy. In addition to the testing requirements in paragraph (g), an 

effective policy must address mandatory face covering use as described in paragraph (i), 
including procedures for employee compliance. Employers can get more information on 
the requirements for paragraphs (e) through (j), and what they must do to comply with 
those provisions of the standard, in the relevant Summary and Explanation sections (see 
Section VI. of this preamble). 
As an employer develops their written policy, they must address how the policy 
will apply to new employees. Although many new hires will be fully vaccinated, there 
should be procedures within the plan to collect information about the new employee’s 
vaccination status, and determine when an unvaccinated new hire must be vaccinated 
and, for employers using a plan under paragraph (d)(2), when COVID-19 testing and face 
covering use will commence if an employee remains unvaccinated. All new hires should 
be treated similarly to any employee who has not entered the workplace in the last seven 
days and will need to be fully vaccinated or provide proof of a negative COVID-19 test 
within the last seven days prior to entering the workplace for the first time. It is not 
OSHA’s intention to discourage employers from hiring new employees, but rather to 
ensure that new employees are as well-protected from COVID-19 hazards in the 
workplace as current employees and are less likely to spread the virus to other 
employees.
An employer may have already developed and implemented a written policy on 
vaccination, testing, and/or face covering use to protect employees from COVID-19. It is 
not OSHA’s intent for employers to duplicate current effective policies covering the 
requirements of this ETS; however, each employer with a current policy must evaluate 
that policy to ensure it satisfies all of the requirements of this rule. Employers with 
existing policies must modify and/or update their current policies to incorporate any 
missing required elements, and must provide information on these new updates or 
modifications to all employees in accordance with paragraph (j)(1). Once the employer 

has developed its policy pursuant to paragraph (d), the policy must be reduced to writing 
in order to be compliant with paragraph (d).  
The note to paragraph (d) was included in recognition that, under federal law, 
some employees may be entitled to a reasonable accommodation from their employer, 
absent undue hardship. If the worker requesting a reasonable accommodation cannot be 
vaccinated and/or wear a face covering because of a disability, as defined by the 
Americans with Disabilities Act (ADA), that worker may be entitled to a reasonable 
accommodation. In addition, if the vaccination, and/or testing for COVID-19, and/or 
wearing a face covering conflicts with a sincerely held religious belief, practice or 
observance, a worker may be entitled to a reasonable accommodation. Such 
accommodations exist independently of the Occupational Safety and Health Act and, 
therefore, OSHA does not administer or enforce these laws. Examples of relevant federal 
laws under which an accommodation can be requested include the Americans with 
Disabilities Act (ADA) and Title VII of the Civil Rights Act of 1964. 
For more information, the note refers to a resource produced by the Equal 
Employment Opportunity Commission (EEOC), which is responsible for enforcing 
federal laws that prohibit employment-related discrimination based on a person's race, 
color, religion, sex (including pregnancy, gender identity, and sexual orientation), 
national origin, age (40 or older), disability, or genetic information. The EEOC resource 
listed in the note, What You Should Know About COVID-19 and the ADA, the 
Rehabilitation Act, and Other EEO Laws, available at https://www.eeoc.gov/wysk/what-
you-should-know-about-covid-19-and-ada-rehabilitation-act-and-other-eeo-laws, should 
be helpful to employers in navigating employees’ requests for accommodations, 
including the process for determining a reasonable accommodation and information on 
undue hardship (EEOC, October 25, 2021). An additional resource that might be helpful 
is the CDC’s informational document, Summary Document for Interim Clinical 

Considerations for Use of COVID-19 Vaccines Currently Authorized in the United States 
(CDC, September 29, 2021), which lists the recognized clinical contraindications to 
receiving a COVID-19 vaccine. 
References: 
Centers for Disease Control and Prevention (CDC). (2021, September 15). Science Brief: 
Background rationale and evidence for public health recommendations for fully 
vaccinated people. https://www.cdc.gov/coronavirus/2019-ncov/science/science-
briefs/fully-vaccinated-people.html. (CDC, September 15, 2021)
Centers for Disease Control and Prevention (CDC). (2021, September 29). Summary 
Document for Interim Clinical Considerations for Use of COVID-19 Vaccines Currently 
Authorized in the United States. https://www.cdc.gov/vaccines/covid-
19/downloads/summary-interim-clinical-considerations.pdf. (CDC, September 29, 2021)
Equal Employment Opportunity Commission (EEOC). (2021, October 25). What You 
Should Know About COVID-19 and the ADA, the Rehabilitation Act, and Other EEO 
Laws. https://www.eeoc.gov/wysk/what-you-should-know-about-covid-19-and-ada-
rehabilitation-act-and-other-eeo-laws. (EEOC, October 25, 2021)
E. Determination of Employee Vaccination Status
To comply with the requirements of the standard, it is essential that employers are 
aware of each employee’s vaccination status. As discussed in the Summary and 
Explanation for paragraph (d) (Section VI.D. of this preamble), effective implementation 
and enforcement of a written vaccination policy requires the employer to know the 
vaccination status of all employees. Furthermore, the employer must know each 
employee’s vaccination status in order to ensure that the vaccination, testing, and face 
covering requirements of the standard are met. As such, paragraph (e) includes provisions 
for determining each employee’s vaccination status. The standard requires employers to 
determine the vaccination status of each employee (paragraph (e)(1)), and also to 
maintain records of each employee’s vaccination status, preserve acceptable proof of 
vaccination for each employee who is fully or partially vaccinated, and maintain a roster 
of each employee’s vaccination status (paragraph (e)(4)). As discussed more fully below, 
maintenance of records in accordance with this paragraph is subject to applicable legal 
requirements for confidentiality of medical information.  Additional provisions in 

paragraph (e) define acceptable proof of vaccination status for vaccinated employees 
(paragraph (e)(2)) and provide that any employee who does not submit an acceptable 
form of proof of vaccination status must be treated as not fully vaccinated (paragraph 
(e)(3)).  
Paragraph (e)(1) requires the employer to determine the vaccination status of each 
employee, including whether the employee is fully vaccinated. Under paragraph 
(e)(2), the employer must require each vaccinated employee to provide acceptable proof 
of vaccination status, including whether they are fully or partially vaccinated. This is an 
ongoing requirement for the employer (i.e., the employer needs to update this information 
as employees proceed through the vaccination process). 
Paragraph (e)(2) defines what “acceptable proof of vaccination status” means for 
purposes of the ETS, and employers must accept any of the proofs listed in accordance 
with the terms of the standard and as explained more fully below. Under paragraph (e)(2), 
the following are acceptable for proof of vaccination: (i) the record of immunization from 
a health care provider or pharmacy; (ii) a copy of the U.S. CDC COVID-19 Vaccination 
Record Card (CDC Form MLS-319813_r, published on September 3, 2020) (CDC, 
October 5, 2021); (iii) a copy of medical records documenting the vaccination; (iv) a 
copy of immunization records from a public health, state, or tribal immunization 
information system; or (v) a copy of any other official documentation that contains the 
type of vaccine administered, date(s) of administration, and the name of the health care 
professional(s) or clinic site(s) administering the vaccine(s). 
To be acceptable as proof of vaccination, any documentation should generally 
include the employee’s name, type of vaccine administered, date(s) of administration, and 
the name of the health care professional(s) or clinic site(s) administering the vaccine(s). 
In some cases, state immunization records may not include one or more of these data 
fields, such as clinic site; in those circumstances, an employer can still rely upon the State 

immunization record as acceptable proof of vaccination. OSHA notes that clinic sites can 
include temporary vaccination facilities used during large vaccine distribution campaigns, 
such as schools, churches, or sports stadiums. Copies, including digital copies, of the 
listed forms of proof are acceptable means of documentation so long as they clearly and 
legibly display the necessary information. Digital copies can include, for example, a 
digital photograph, scanned image, or PDF of an acceptable form of proof. Some state 
governments are utilizing digital COVID-19 vaccine records showing the same 
information as the U.S. CDC COVID-19 Vaccination Record Card (CDC Form MLS-
319813_r, published on September 3, 2020) and providing quick response (QR) codes 
that when scanned will provide the same information (see, e.g., New York State 
Government, n.d., Retrieved October 4, 2021). In certain states, the QR code confirms the 
vaccine record as an official record of the state (see, e.g., State of California, n.d., 
Retrieved October 7, 2021) and therefore would provide acceptable proof of vaccination 
under the ETS (see paragraph (e)(2)(iv)).  However, as discussed later, the employer must 
retain a copy of the vaccination information retrieved when the QR code is scanned, not 
just the QR code itself, to comply with paragraph (e)(4). In requesting proof of 
vaccination, the employer must take care to comply with any applicable Federal laws, 
including requirements under the Privacy Act, 5 U.S.C. 552a, and the Americans with 
Disabilities Act (ADA), 42 U.S.C. 12101 et seq. 
Each employee who has been partially or fully vaccinated should be able to 
provide one of the forms of acceptable proof listed above (paragraphs (e)(2)(i)-(e)(2)(v)). 
An employee who does not possess their COVID-19 vaccination record (e.g., because it 
was lost or stolen) should contact their vaccination provider (e.g., local pharmacy, 
physician’s office) to obtain a new copy or utilize their state health department’s 
immunization information system. In instances where an employee is unable to produce 
acceptable proof of vaccination under paragraphs (e)(2)(i) - (e)(2)(v), paragraph (e)(2)(vi) 

provides that a signed and dated statement by the employee will be acceptable. The 
employee’s statement must: (A) attest to their vaccination status (fully vaccinated or 
partially vaccinated); (B) attest that they have lost or are otherwise unable to produce 
proof required by the standard; and (C) include the following language: “I declare (or 
certify, verify, or state) that this statement about my vaccination status is true and 
accurate. I understand that knowingly providing false information regarding my 
vaccination status on this form may subject me to criminal penalties.” The note to 
paragraph (e)(2)(vi) explains that an employee who attests to their vaccination status 
should, to the best of their recollection, include the following information in their 
attestation: the type of vaccine administered; date(s) of administration; and the name of 
the health care professional(s) or clinic site(s) administering the vaccine(s).  For example, 
some of the information may be easier to recall, such as receiving a vaccine at a mass 
vaccination site or local pharmacy, while the dates of administration might only be 
remembered as falling within a particular month or months.  OSHA understands that 
employees may not be able to recall certain information, such as the type of vaccine 
received.  Employees providing attestations should include as much of this information as 
they can remember to the best of their ability.
Any statement provided under paragraph (e)(2)(vi) must include an attestation 
that the employee is unable to produce another type of proof of vaccination (paragraph 
(e)(2)(vi)(B)). Thus, before an employee statement will be acceptable for proof of 
vaccination under paragraph (e)(2)(vi), the employee must have attempted to secure 
alternate forms of documentation via other means (e.g., from the vaccine administrator or 
their state health department) and been unsuccessful in doing so. The agency recognizes 
that securing vaccination documentation may be challenging for some members of the 
workforce, such as migrant workers, employees who do not have access to a computer, or 
employees who may not recall who administered their vaccines (e.g., if the vaccination 

was provided at a temporary location, such as a church, or during a state or local mass 
vaccination campaign). Thus, for employees who have no other means of obtaining proof 
of vaccination, the standard permits employers to accept attestations meeting the 
requirements in paragraph (e)(2)(vi) as proof of vaccination. However, employers should 
explain to their employees that they need to produce vaccination proof through the other 
means listed in paragraph (e)(2), such as by contacting the vaccination administrator, if 
they are able to do so. Once the employee has provided a signed and dated attestation that 
meets the requirements of paragraph (e)(2)(vi), the employer no longer needs to seek out 
one of the other forms of vaccination proof for that employee and, depending on the 
content of the attestation, the employer may consider that employee either fully or 
partially vaccinated for purposes of the ETS.
Recently, there has been evidence of fraud associated with people attesting to 
their vaccination status (Bergal, September 16, 2021). While employers may not invite or 
facilitate fraud, the ETS does not require employers to monitor for or detect fraud. By 
defining what constitutes acceptable proof of vaccination under the ETS, OSHA is 
ensuring that employers can accept proof meeting the requirements of paragraph (e) for 
purposes of compliance with the standard. However, the standard’s requirements for 
proof of vaccination are integral to ensuring that employees are protected appropriately, 
either through vaccination (the preferred and most effective workplace control in this 
ETS), or through regular testing and use of face coverings. Thus, it is paramount that 
employees provide truthful information regarding their vaccination status. 
As discussed in more detail in the Summary and Explanation for paragraph (j) 
(Section VI.J. of this section), 18 U.S.C. 1001(a), which provides for fines or 
imprisonment of generally up to 5 years for any person who “in any matter within the 
jurisdiction” of the executive branch U.S. Government “knowingly and willfully” 
engages in any of the following:   

(1) falsifies, conceals, or covers up by any trick, scheme, or device a material fact; 
(2) makes any materially false, fictitious, or fraudulent statement or representation; or 
(3) makes or uses any false writing or document knowing the same to contain any 
materially false, fictitious, or fraudulent statement or entry.  
Similarly, the OSH Act recognizes that OSHA’s ability to protect workers’ safety and 
health hinges on truthful reporting. For that reason section 17(g) of the OSH Act subjects 
anyone who “knowingly makes any false statement, representation, or certification in any 
application, record, report, plan, or other document filed or required to be maintained 
pursuant to this chapter” to criminal penalties. 29 U.S.C. 666(g). False statements made 
in any proof submitted under paragraph (e)(2) of the standard could fall under either or 
both of 18 U.S.C. 1001 or section 17(g) of the OSH Act. And by requiring a specific 
declaration about the truth and accuracy of employee statements provided under 
paragraph (e)(2)(vi), employees who are unable to provide any means of proof other than 
their own attestation are being made aware that their words are being held to the same 
standard of truthfulness as any other record presented for proof of vaccination. 
OSHA notes that these same prohibitions on false statements and documentation 
can apply to employers. If an employer knows that proof submitted by an employee is 
fraudulent, and even with this knowledge, accepts and maintains the fraudulent proof as a 
record of compliance with this ETS, it may be subject to the penalties in 18 U.S.C. 1001 
and 17(g) of the OSH Act. 
Paragraph (e)(3) provides the mechanism for employers to determine vaccination 
status for employees who do not submit any of the acceptable forms of proof of 
vaccination status. Under paragraph (e)(3), any employee who does not provide their 
employer with one of the acceptable forms of proof of vaccination status in paragraph 
(e)(2) must be treated as not fully vaccinated for the purpose of the standard. An 
unvaccinated employee does not need to provide any documentation regarding 

vaccination status under this ETS; however, failing to provide acceptable proof of 
vaccination status will signal the employer to consider the employee as not fully 
vaccinated and to note that as their status in the roster. For employers that include 
COVID-19 testing in their written policies under paragraph (d), employees without 
acceptable proof of vaccination status must submit to weekly tests (as required by 
paragraph (g)) and wear a face covering (as required by paragraph (i)). 
Paragraph (e)(4) requires the employer to maintain a record of each employee’s 
vaccination status and preserve acceptable proof of vaccination for each employee who is 
fully or partially vaccinated. As discussed previously, the employer has various options 
for acquiring proof of vaccination from each employee. An employer may allow 
employees to provide a digital copy of acceptable records, including, for example, a 
digital photograph, scanned image, or PDF of such a record that clearly and legibly 
displays the necessary vaccination information. However, to be in compliance with 
paragraph (e)(4), the employer must ensure they are able to maintain a record of each 
employee’s vaccination status. Therefore, obtaining an employee’s vaccination 
information verbally would not comply with paragraph (e)(2) or satisfy the record 
maintenance requirements of the standard. Similarly, the record maintenance 
requirements of paragraph (e)(4) cannot be fulfilled by an employee merely showing the 
employer their vaccination status (e.g., by bringing the CDC COVID-19 vaccination card 
to the workplace and showing it to an employer representative or showing an employer 
representative a picture of the immunization records on a personal cellphone). To satisfy 
paragraph (e)(4), the employer must retain a copy of the documentation. As mentioned 
above, some states and local governments utilize QR codes to facilitate proof of 
vaccination. This can be an acceptable form of proof for compliance with the standard so 
long as the employer retains a copy of the information retrieved by scanning the QR code 
and maintains that record. Required records of vaccination status can be maintained 

physically or electronically, but the employer must ensure they have access to the records 
at all times. 
In addition to obtaining and maintaining individual records of each employee’s 
vaccination status and preserving acceptable proof of vaccination for each employee who 
is partially or fully vaccinated, under paragraph (e)(4) the employer must maintain a 
roster of each employee’s vaccination status, subject to applicable confidentiality 
requirements. The roster must list all employees and clearly indicate for each one whether 
they are fully vaccinated, partially (not fully) vaccinated, not fully vaccinated because of 
a medical or religious accommodation (see Note to paragraph (d)), or not fully vaccinated 
because they have not provided acceptable proof of their vaccination status. As noted 
previously, any employee that has not provided acceptable proof of their vaccination 
status must be treated as not fully vaccinated. Although unvaccinated employees will not 
have proof of vaccination status, the standard requires the employer to include all 
employees, regardless of vaccination status, on the roster. 
The roster allows the employer to easily access the vaccination status for any 
employee quickly and easily. This will be useful should the employer need to respond to 
a request from an employee or employee representative for the aggregate number of fully 
vaccinated employees at a workplace (along with the total number of employees at that 
workplace), as required under paragraph (l)(2). Additionally, the roster will help the 
employer implement the written policy developed in accordance with paragraph (d) and 
comply with other requirements of the ETS. And finally, the roster, which must be 
provided to OSHA on request (paragraph (l)(3)), will aid OSHA’s ability to effectively 
and efficiently enforce this ETS.
The records and roster required by paragraph (e)(4) are considered to be employee 
medical records and must be maintained as such records in accordance with 29 CFR 
1910.1020 and must not be disclosed except as required or authorized by this ETS or 

other federal law, including the Americans with Disabilities Act (ADA), 42 U.S.C. 12101 
et seq. These records and roster are not subject to the retention requirements of 29 CFR 
1910.1020(d)(1)(i) but must be maintained and preserved while this ETS remains in 
effect. OSHA considers vaccination records required by paragraphs (e)(2) and (e)(4) of 
the ETS to be employee medical records concerning the health status of an employee and 
is requiring this personally identifiable medical information to be maintained in a 
confidential manner. OSHA notes that under paragraph (e)(4), vaccination records and 
rosters are employee medical records, and must be treated as employee medical records 
under 29 CFR 1910.1020, without regard to whether the records satisfy the definition of 
employee medical record at 29 CFR 1910.1020(c)(6)(i).
Paragraph (e) in 29 CFR 1910.1020 includes requirements for access to employee 
medical records by employees, their designated representatives, and OSHA. However, as 
discussed in more detail below, paragraph (l) of the ETS includes specific timeframes 
within which employers must make vaccine records available to employees, OSHA, and 
other specified individuals. Accordingly, the timeframes for providing access to 
employee medical records in 29 CFR 1910.1020(e) do not apply, and employers must 
follow the specific timeframes set forth in paragraph (l) of the ETS for providing access 
to vaccination records.     
Additionally, 29 CFR 1910.1020(d) addresses the preservation of employee 
exposure and medical records. Paragraph (d)(1)(i) in section 1910.1020 generally 
provides that unless a specific occupational safety and health standard provides a 
different period of time, each employer must preserve and maintain employee medical 
records for at least the duration of employment plus thirty (30) years. Paragraph (e)(4) of 
the ETS specifically provides that the vaccination records required by the ETS are not 
subject to the retention requirements of 29 CFR 1910.1020(d)(1)(i). Instead, paragraph 

(e)(4) states that vaccination records must be maintained and preserved only so long as 
the ETS remains in effect. 
Finally, while the provisions on timeframes for access to records and the retention 
provisions of 29 CFR 1910.1020 do not apply to vaccine records required by the ETS, 
other provisions in that regulation can still apply. For example, 29 CFR 1910.1020(h) 
includes requirements for the transfer of employee medical records when an employer 
ceases to do business.
OSHA recognizes the possibility that an employer may have already collected 
information about the vaccination status of employees, including proof of vaccination, 
prior to the effective date of this ETS. Under paragraph (e)(5), when an employer has 
ascertained employee vaccination status prior to the effective date of the ETS through 
another form of attestation or proof, and retained records of that ascertainment, the 
employer is exempt from the requirements in paragraphs (e)(1) - (e)(3). The exemption 
applies only for each employee whose fully vaccinated status has been documented prior 
to the effective date of the standard. For example, an employer may have asked each 
employee to self-report their vaccination status without requiring the employee to provide 
any form of proof. If that self-reporting was through oral conversation only, and not 
documented in some way, the employer is not considered to have retained records of that 
ascertainment for the purposes of this ETS.  However, if, for example, the employer had 
the employees provide their vaccine information on a dated form, or through individual 
emails retained by the employer, or on an employer portal specifically created for 
employees to provide documentation status, or the employer created and retained some 
other means of documentation, the employer is considered to have retained records of 
ascertainment for the purposes of this ETS. Even if the record does not have all of the 
elements of the acceptable forms of proof listed in paragraph (e)(2), so long as the 
employer has ascertained employee vaccination status prior to the effective date of the 

ETS through another form of attestation or proof, and retained records of that 
ascertainment, the employer does not need to re-determine vaccination status (paragraph 
(e)(1)) or obtain proof of vaccination status (paragraph (e)(2)) for fully vaccinated 
employees.  For purposes of paragraph (e)(4), the employer’s records of vaccination 
status for each employee whose fully vaccinated status was previously documented 
constitute acceptable proof of vaccination. However, the employer must still develop a 
roster of each employee’s vaccination status and include on that roster the employees for 
whom it had previously determined and retained records of vaccination status. OSHA 
notes that if the employer has not ascertained employee vaccination status for employees 
prior to the effective date of the ETS, then all requirements of paragraph (e) would apply. 
And all requirements of paragraph (e) also apply with respect to employees for whom the 
employer ascertained only partial vaccination status prior to the effective date of the ETS.
References:
Bergal J. (2021, September 16). Fake Vaccine Card Sales Have Skyrocketed Since Biden 
Mandate. https://www.pewtrusts.org/en/research-and-
analysis/blogs/stateline/2021/09/16/fake-vaccine-card-sales-have-skyrocketed-since-
biden-mandate. (Bergal, September 16, 2021). 
Centers for Disease Control and Prevention (CDC). (2021, October 5). Getting Your 
CDC COVID-19 Vaccination Record Card. https://www.cdc.gov/coronavirus/2019-
ncov/vaccines/vaccination-card.html. (CDC, October 5, 2021)
New York State Government. (n.d.) Excelsior Pass and Excelsior Pass Plus. Retrieved 
October 4, 2021 from https://covid19vaccine.health.ny.gov/excelsior-pass-and-excelsior-
pass-plus. (New York State Government, n.d., Retrieved October 4, 2021) 
State of California. (n.d.) Frequently Asked Questions. Retrieved October 7, 2021 
from https://myvaccinerecord.cdph.ca.gov/faq. (State of California, n.d., Retrieved 
October 7, 2021) 
F.  Employer Support for Employee Vaccination 
As discussed in the Summary and Explanation for paragraph (d) (Section VI.D. of 
this preamble), as well as in Grave Danger and Need for the ETS (Sections III.A. and 
III.B. of this preamble), vaccination is the single most efficient and effective method for 
protecting unvaccinated workers from the grave danger posed by COVID-19. This 

emergency temporary standard is therefore designed to strongly encourage vaccination. 
As discussed in detail below, paragraph (f) requires employers to support vaccination by 
providing employees reasonable time, including up to four hours of paid time, to receive 
each primary vaccination dose, and reasonable time and paid sick leave to recover from 
side effects experienced following each primary vaccination dose. For purposes of the 
requirements to support vaccination in paragraph (f), OSHA considers a vaccination 
series that meets the criteria in subparagraph (ii) of the definition of “fully-vaccinated” 
(i.e., a heterologous primary series of such vaccines, receiving doses of different COVID-
19 vaccines as part of one primary series) to be a primary vaccination series, along with 
the primary vaccination described in subparagraph (i) of that definition (see the Summary 
and Explanation for paragraph (c), Section VI.C. of this preamble, for more information 
on the definition of fully vaccinated).
Removing logistical barriers to obtaining vaccination is essential to increasing 
workforce vaccination rates, and one such barrier for many employees is their lack of 
time off of work to receive the vaccine and recover from any potential side effects (SEIU 
Healthcare, February 8, 2021). Employees’ concerns about missing work to obtain and 
recover from a COVID-19 vaccination dose are well documented. In a McKinsey survey, 
12% of respondents stated that the time spent away from work to get vaccinated or due to 
vaccine side effects was a barrier to vaccination (Azimi et al., April 9, 2021). In a survey 
conducted of unvaccinated adults in April 2021, a fifth of respondents said they were 
very or somewhat concerned that they may need to take time off to go and get the 
vaccine, and 48% of respondents said that they were very or somewhat concerned that 
they might miss work if the vaccine side effects make them feel sick (KFF, May 6, 2021). 
Black and Hispanic adults were particularly worried about the potential time necessary to 
receive the vaccine and to recover from vaccine side effects; 64% of unvaccinated 
Hispanic adults and 55% of unvaccinated Black adults expressed concern that they might 

have to miss work due to the side effects of a COVID-19 vaccine, and 30% of Hispanic 
adults and 23% of Black adults were concerned that they might need to take time off 
work to get a COVID-19 vaccine (KFF, May 6, 2021; KFF, May 17, 2021). News and 
journal articles further evince this concern (Roy et al., December 29, 2020; Cleveland 
Documenters, 2021; Rosenberg and Stein, August 18, 2021).
This concern reflects the fact that many workers do not have access to paid time 
off to receive vaccination or to recover from side effects. A KFF survey found that only 
half of all workers reported that their employer provided them with paid time off either to 
get a COVID-19 vaccine or to recover from any side effects (KFF, June 30, 2021). A 
subsequent KFF survey found that only about one-third of workers were sure that their 
employer offered them paid time off to get a COVID-19 vaccine and recover from side 
effects (KFF, September 28, 2021). Although employee access to paid sick leave is less 
of a concern for employers with 100 or more employees, approximately 12% of 
employees in these situations do not have paid sick leave (BLS, September 2021) and in 
some cases, employees may have already exhausted paid sick leave they have received 
and would need additional time from their employers to recover from vaccine side 
effects.
The scarcity of paid time off for vaccination and side effect recovery is 
particularly acute for certain demographic groups. The June 2021 KFF survey found that 
only 38% of Black workers reported getting either paid time off to get a COVID-19 
vaccine or to recover from side effects, and that only 41% of workers with household 
incomes less than $40,000 annually had access to such paid time off (KFF, June 30, 
2021). Similarly, the September 2021 KFF survey found that lower-wage workers were 
particularly unlikely to report access to paid time off for vaccination or recovery, with 
only 23% of workers whose household incomes was less than $40,000 reporting that they 
could take paid time off to get vaccinated, and only 28% of that group reporting that they 

could take paid time off to recover from side effects (KFF, September 28, 2021). Lower-
wage workers’ lack of access to paid time off for vaccination comports with a different 
report indicating that, before the pandemic, about 65% of the lowest-wage workers had 
no access to paid sick leave, meaning that any time off for vaccination or recovery would 
result in lost wages for those who can least afford those losses (BLS, September 2021). 
The need for paid time off to receive vaccination is also particularly important for 
workers with disabilities and workers in rural areas because travel to and from 
vaccination sites may take more time or be more logistically difficult for those 
populations (National Safety Council, 2021). 
Paying workers for the time spent to receive vaccination and to recover from side 
effects has proven to be an effective method for increasing vaccination rates. In June 
2021, KFF found that approximately 75% of employed adults surveyed who received 
paid time off to get the vaccine or to recover from side effects had received at least one 
dose of the vaccine compared to only 51% of those surveyed who did not receive paid 
time off from their employer (KFF, June 30, 2021). KFF also found that employees who 
are provided paid time off and are encouraged by their employers to get vaccinated are 
more likely to get vaccinated, even after controlling for demographic characteristics that 
may impact vaccination uptake (KFF, June 30, 2021). Another KFF survey found that 
28% of unvaccinated respondents who did not want to get the vaccine as soon as possible 
said that they would be more likely to obtain vaccination if their employer gave them 
paid time off to get vaccinated and recover from any side effects (KFF, May 6, 2021). 
KFF has also found that increasing access to paid leave for vaccination or recovery from 
side effects can also help further reduce disparities in vaccination by age and income 
(KFF, September 28, 2021).
In a different survey, paid time off for vaccination and the recovery period post-
vaccination was the single most-influential action for encouraging employee vaccination, 

with 75% of respondents indicating that such paid time off would significantly or 
moderately increase the likelihood that they would get vaccinated (Azimi et al., April 9, 
2021). Another survey of nearly 9,000 service workers across large grocery, retail, food 
service, pharmacy, and delivery firms, found that vaccination rates were lower than other 
frontline workers who also regularly work in-person and indoors, and when employers 
supported and facilitated vaccination, such as through providing paid time off or paid sick 
leave for vaccination or for recovery from side effects, employee vaccination rates were 
higher than if no support was provided, and in May 2021, workers with paid sick leave 
were 15% more likely to have gotten the vaccine than workers without such leave 
(Bellew et al., June 2021). 
To address this barrier to vaccination, paragraph (f) requires employers to support 
COVID-19 vaccination by providing each employee with reasonable time, including up 
to four hours of paid time, to receive each primary vaccination dose, and reasonable time 
and paid sick leave to recover from side effects experienced following any primary 
vaccination dose. Providing this time is essential for all unvaccinated employees who are 
covered by this rule to ensure that they can receive primary vaccination dose(s) and 
recover from side effects without sacrificing pay or their jobs. In workplaces where 
employers implement a mandatory vaccination policy in accordance with paragraph 
(d)(1) of this rule, the requirements of paragraph (f) ensure that employees are able to 
comply with the mandatory vaccination policy without concern about missing work to do 
so. In workplaces where the employer opts out of implementing a mandatory vaccination 
policy in accordance with paragraph (d)(2), the requirements of paragraph (f) encourage 
employees to choose vaccination, and ensure that employees who choose to obtain 
vaccination, rather than be regularly tested for COVID-19 and wear a face covering in 
most situations when they work near others, are not penalized for making that choice. 

Paragraph (f)(1) requires employers to support COVID-19 vaccination for each 
employee by providing reasonable time to each employee during work hours for each of 
their primary vaccination dose(s), including up to four hours of paid time, at the 
employee’s regular rate of pay, for the purposes of vaccination. Reasonable time may 
include, but is not limited to, time spent during work hours related to the vaccination 
appointment(s), such as registering, completing required paperwork, all time spent at the 
vaccination site (e.g., receiving the vaccination dose, post-vaccination monitoring by the 
vaccine provider), and time spent traveling to and from the location for vaccination 
(including travel to an off-site location (e.g., a pharmacy), or situations in which an 
employee working remotely (e.g., telework) or in an alternate location must travel to the 
workplace to receive the vaccine).
Employers are not, however, obligated by this ETS to reimburse employees for 
transportation costs (e.g., gas money, train/bus fare, etc.) incurred to receive the 
vaccination. This could include the costs of travel to an off-site vaccination location (e.g., 
a pharmacy) or travel from an alternate work location (e.g., telework) to the workplace to 
receive a vaccination dose.
Because employers are required to provide reasonable time for vaccination during 
work hours, if an employee chooses to receive a primary vaccination dose outside of 
work hours, employers are not required to grant paid time to the employee for the time 
spent receiving the vaccine during non-work hours. However, even if employees receive 
a primary vaccination dose outside of work hours, employers must still afford them 
reasonable time and paid sick leave to recover from side effects that they experience 
during scheduled work time in accordance with paragraph (f)(2).
An employer may make other efforts to facilitate vaccination of its employees by, 
for example, hosting a vaccine clinic at the workplace (e.g., mobile trailer) or partnering 
with another entity, such as a pharmacy or healthcare provider, so that employees can be 

vaccinated at the workplace or at an off-site location. If an employer chooses to make the 
vaccine available to its employees, it must support full vaccination (i.e., provide all doses 
in a primary vaccination, as applicable), and assure the availability of reasonable time 
and paid time to each employee to receive the full primary vaccination, and reasonable 
time and paid sick leave to recover from side effects that they may experience. Any 
additional costs incurred by the employer to bring vaccination on-site would be covered 
by the employer, though such an approach would likely reduce the amount of paid time 
needed for vaccine administration (but not side effects) because of reduced employee 
travel time. 
Paragraph (f)(1) specifies that the amount of paid time that an employer is 
required to provide each employee to receive each primary vaccination dose is capped at 
four hours. OSHA has determined that four hours would provide reasonable time for 
most employees to get each vaccination dose. Vaccines are widely available to the public 
at clinics, pharmacies, and other locations across the country (see CDC, October 8, 2021).  
Providing four hours of paid time to receive each primary vaccination dose is consistent 
with OSHA’s presumption of the amount of time needed to receive a vaccination dose in 
the June 2021 Healthcare ETS (86 FR 32598), and with the U.S. Office of Personnel 
Management’s guidance to federal government agencies on the use of the emergency 
paid leave created for federal employees in the American Rescue Plan Act of 2021 
(Public Law 117-2), which encouraged agencies to offer up to four hours of 
administrative leave per dose to cover time spent getting a vaccine dose, plus additional 
time if reasonably necessary, instead of having employees use emergency paid leave 
(OPM, April 29, 2021). OSHA expects that most employees will need less than four 
hours to receive a vaccination dose. 
The maximum of four hours of paid time that employers must provide under 
paragraph (f)(1)(ii) for the administration of each primary vaccination dose cannot be 

offset by any other leave that the employee has accrued, such as sick leave or vacation 
leave. OSHA is concerned that employees forced to use their sick leave or vacation leave 
for vaccination would have a disincentive to gaining the health protection of vaccination. 
Employers must pay employees for up to four hours of time at the employee’s regular 
rate of pay. This may be achieved by paying for the time to be vaccinated as work hours 
for up to four hours. Requiring employers to pay for vaccine administration is consistent 
with OSHA’s normal approach of requiring employers to bear the costs of compliance 
with safety and health standards.
OSHA understands that employees may need much less than four hours to receive 
a primary vaccination dose, for example, if vaccinations are offered on-site. However, 
OSHA also understands that, in some circumstances, an employee may need more than 
four hours to receive a primary vaccination dose, in which case the additional time, as 
long as it is reasonable, would be considered unpaid but protected leave. The employer 
cannot terminate the employee if they use a reasonable amount of time to receive their 
primary vaccination doses. The employee may use other leave time that they have 
available (e.g., sick leave or vacation time) to cover the additional time needed to receive 
a vaccination dose that would otherwise be unpaid. 
Paragraph (f)(2) also requires employers to support COVID-19 vaccination for 
each employee by providing reasonable time and paid sick leave to recover from side 
effects experienced following any primary vaccination dose to each employee for each 
dose. The paid sick leave can be in the form of an employee’s accrued sick leave, if 
available.  If the employee does not have available sick leave, leave must be provided for 
this purpose.
Although some individuals experience no side effects from COVID-19 
vaccination doses, the CDC has identified a range of side effects that other individuals 
may experience following a vaccination dose (CDC, April 2, 2021; CDC, September 30, 

2021). Side effects may affect individuals’ ability to engage in daily activities, are 
typically mild-to-moderate in severity, and usually go away in a few days. Common side 
effects include pain, redness, and swelling at the site of injection, and systemic side 
effects throughout the body, including tiredness, headache, muscle pain, chills, fever, and 
nausea. Side effects may be sufficiently severe to require the employee to take sick leave 
from work, but will rarely extend beyond a few days.  One study found that 
“unanticipated paid administrative leave was only required for 4.9% and 19.79% of 
individuals after the first and second doses of vaccine, respectively” (Levi et al., 
September 25, 2021). Employees would not typically be expected to need leave solely to 
address redness or swelling at the site of injection, but it is not uncommon for vaccine 
recipients to require some recovery time for many of the other side effects. The CDC 
notes, however, that cough, shortness of breath, runny nose, sore throat, or loss of taste or 
smell are not consistent with post-vaccination symptoms and instead may be symptoms 
of COVID-19 or another infection (CDC, April 2, 2021). 
If an employee already has accrued paid sick leave, an employer may require the 
employee to use that paid sick leave when recovering from side effects experienced 
following a primary vaccination dose. Additionally, if an employer does not specify 
between different types of leave (i.e., employees are granted only one type of leave), the 
employer may require employees to use that leave when recovering from vaccination side 
effects. If an employer provides employees with multiple types of leave, such as sick 
leave and vacation leave, the employer can only require employees to use the sick leave 
when recovering from vaccination side effects. Employers cannot require employees to 
use advanced sick leave to cover reasonable time needed to recover from vaccination side 
effects under paragraph (f)(2). An employer may not require an employee to accrue 
negative paid sick leave or borrow against future paid sick leave to recover from 
vaccination side effects. In other words, the employer cannot require an employee to go 

into the negative for paid sick leave if the employee does not have accrued paid sick 
leave when they need to recover from side effects experienced following a primary 
vaccination dose. Neither the paid time required to receive any vaccine dose(s) nor the 
paid sick leave required to recover from side effects experienced following any 
vaccination dose are retroactive requirements for vaccine dose(s) received prior to the 
promulgation of this ETS. 
Paragraph (f)(2) requires employers to provide reasonable time and paid sick 
leave to employees to recover from side effects experienced following a primary 
vaccination dose, but does not specify the amount of paid sick leave that the employer is 
required to provide for that purpose. Employers may set a cap on the amount of paid sick 
leave available to employees to recover from any side effects, but the cap must be 
reasonable. CDC notes that although some people have no side effects, side effects, if 
experienced, should go away in a few days (CDC, September 30, 2021). Another study 
found that the average unanticipated paid administrative leave required by individuals 
experiencing side effects was around two days (1.66 days for the first dose and 1.39 days 
for the second dose) (Levi et al., September 25, 2021). Generally, OSHA presumes that, 
if an employer makes available up to two days of paid sick leave per primary vaccination 
dose for side effects, the employer would be in compliance with this requirement. When 
setting the cap, an employer would not be expected to account for the unlikely possibility 
of the vaccination resulting in a prolonged illness in the vaccinated employee (e.g., a 
severe allergic reaction).
OSHA is aware that other federal, state, or local laws, or collective bargaining 
agreements, may require employers to provide employees additional paid time for 
vaccination and/or paid sick leave to recover from vaccination side effects. Where such 
an overlap exists, the requirements of this standard are satisfied so long as the employer 
provides each employee reasonable time and four hours of paid time to receive each 

primary vaccination dose, and reasonable time and paid sick leave to recover from side 
effects experienced following a primary vaccination dose. 
References:
Azimi T et al.  (2021, April 9). Getting to work: Employers’ role in COVID-19 
vaccination.  https://www.mckinsey.com/industries/pharmaceuticals-and-medical-
products/our-insights/getting-to-work-employers-role-in-covid-19-vaccination#.  (Azimi 
et al., April 9, 2021)
Bellew E et al. (2021, June). Half of service sector workers are not yet vaccinated for 
COVID-19: What gets in the way? The Shift Project: Research Brief. 
https://shift.hks.harvard.edu/wp-content/uploads/2021/06/Vax_Brief_6.28.21-2.pdf. 
(Bellew et al., June 2021) 
Centers for Disease Control and Prevention (CDC). (2021, April 2). Post-vaccination 
considerations for workplaces. https://www.cdc.gov/coronavirus/2019-
ncov/community/workplaces-businesses/vaccination-considerations-for-workplaces.html. 
(CDC, April 2, 2021)
Centers for Disease Control and Prevention (CDC). (2021, September 30). Possible side 
effects after getting a COVID-19 vaccine. https://www.cdc.gov/coronavirus/2019-
ncov/vaccines/expect/after.html. (CDC, September 30, 2021)
Centers for Disease Control and Prevention (CDC). (2021, accessed October 8). We can 
do this: Vaccines.gov website. https://www.vaccines.gov/. (CDC, October 8, 2021)
Cleveland Documenters. (2021). Why some Clevelanders are still on the fence or not 
getting vaccinated: Voices on the vaccine. The Cleveland 
Observer. https://www.freshwatercleveland.com/street-
level/VaccineVoice050521.aspx. (Cleveland Documenters, 2021)
Kaiser Family Foundation (KFF). (2021, May 6). KFF COVID-19 Vaccine Monitor: 
April 2021. https://www.kff.org/coronavirus-covid-19/poll-finding/kff-covid-19-vaccine-
monitor-april-2021/. (KFF, May 6, 2021)
Kaiser Family Foundation (KFF). (2021, May 17). How employer actions could facilitate 
equity in COVID-19 vaccinations. https://www.kff.org/policy-watch/how-employer-
actions-could-facilitate-equity-in-covid-19-vaccinations/. (KFF, May 17, 2021)
Kaiser Family Foundation (KFF). (2021, June 30). KFF COVID-19 Vaccine Monitor: 
June 2021. https://www.kff.org/report-section/kff-covid-19-vaccine-monitor-june-2021-
findings/. (KFF, June 30, 2021)
Kaiser Family Foundation (KFF). (2021, September 28). KFF COVID-19 Vaccine 
Monitor: September 2021. https://www.kff.org/coronavirus-covid-19/poll-finding/kff-
covid-19-vaccine-monitor-september-2021/. (KFF, September 28, 2021)
Levi ML et al. (2021, September 25). COVID-19 mRNA vaccination, reactogenicity, 
work-related absences and the impact on operating room staffing: A cross-sectional 

study. Perioperative Care and Operating Room Management preprint. 
https://doi.org/10.1016/j.pcorm.2021.100220. (Levi et al., September 25, 2021)  
National Safety Council. (2021). A Year in Review, and What’s Next: COVID-19 
Employer Approaches and Worker Experiences. https://www.nsc.org/faforms/safer-year-
one-final-report. (National Safety Council, 2021)
Rosenberg E and Stein J. (2021, August 18). America’s failure to pay workers time off 
undermines vaccine campaign, according to surveys, policy experts. Washington Post. 
https://www.washingtonpost.com/us-policy/2021/08/16/paid-leave-covid-vaccine/. 
(Rosenberg and Stein, August 18, 2021)
Roy B et al. (2020, December 29). Health Care Workers’ Reluctance to Take the 
COVID-19 Vaccine: A Consumer-Marketing Approach to Identifying and Overcoming 
Hesitancy. NEJM Catalyst. https://catalyst.nejm.org/doi/pdf/10.1056/CAT.20.0676. (Roy 
et al., December 29, 2020)
SEIU Healthcare. (2021, February 8). Research shows 81% of healthcare workers willing 
to take COVID-19 vaccines but personal financial pressures remain a significant barrier 
for uptake. https://www.newswire.ca/news-releases/research-shows-81-of-healthcare-
workers-willing-to-take-covid-19-vaccines-but-personal-financial-pressures-remain-a-
significant-barrier-for-uptake-888810789.html. (SEIU Healthcare, February 8, 2021) 
United States Bureau of Labor Statistics (BLS). (2021, September). National 
Compensation Survey: Employee Benefits in the United States, March 2021. 
https://www.bls.gov/ncs/ebs/benefits/2021/employee-benefits-in-the-united-states-march-
2021.pdf. (BLS, September, 2021)
United States Office of Personnel Management (OPM). (2021, April 29). American 
Rescue Plan: COVID-19 Emergency Paid Leave for Federal Employees. 
https://chcoc.gov/sites/default/files/Attachment%205%20COVID-
19%20Emergency%20Paid%20Leave%20Questions%20and%20Answers_0.pdf. (OPM, 
April 29, 2021)
G. COVID-19 Testing for Employees Who are Not Fully Vaccinated
Paragraph (g) of this ETS addresses employers’ obligations with respect to 
employees who are not fully vaccinated, including the requirement to ensure 
unvaccinated employees are tested for COVID-19. As explained in Need for the ETS 
(Section III.B. of this preamble), OSHA strongly prefers that employers implement 
written mandatory vaccination policies because that is the most effective and efficient 
workplace control available for preventing the spread of COVID-19. However, this ETS 
is also necessary to protect workers who remain unvaccinated through required regular 
testing, use of face coverings, and removal of infected employees from the workplace, 

and to protect other workers from the greater likelihood that unvaccinated workers may 
spread COVID-19 in the workplace. People who are unvaccinated are at increased risk of 
becoming infected with COVID-19 and are more likely to spread the disease when 
compared to people who are fully vaccinated (CDC, September 15, 2021). Additionally, 
people who are unvaccinated are more likely to experience severe clinical outcomes if 
they become infected than people who are vaccinated (Lopez Bernal et al., July 21, 
2021). Therefore, routine COVID-19 testing of unvaccinated employees is necessary to 
identify employees with COVID-19 so they can be removed from the workplace to 
prevent transmission to other employees and to facilitate early medical intervention for 
infected employees when appropriate. 
Routine testing of unvaccinated employees is necessary regardless of whether the 
unvaccinated employees have symptoms because SARS-CoV-2 infection is often 
attributable to asymptomatic and/or pre-symptomatic transmission (i.e., individuals who 
are not exhibiting symptoms) (Bender et al., February 18, 2021; Klompas, September 
2021; Johansson et al., January 7, 2021; Byambasuren et al., December 11, 2020). 
Although less effective and efficient than vaccination, the CDC has recognized regularly 
testing unvaccinated employees for COVID-19 as a useful tool for identifying 
asymptomatic and/or pre-symptomatic infected individuals so that they can be isolated 
(CDC, May 4, 2021; CDC, October 7, 2021). In contrast, the CDC recommends that fully 
vaccinated employees with no symptoms and no known exposure should be exempt from 
routine testing programs (CDC, May 4, 2021). Additional information about the risks of 
COVID-19 transmission in vaccinated and unvaccinated workers is discussed in Grave 
Danger (Section III.A. of this preamble).
Testing for COVID-19 can broadly be divided into two categories: diagnostic 
testing and screening testing. The purpose of diagnostic testing is to identify current 
infection when a person has signs or symptoms consistent with COVID-19, or when a 

person is asymptomatic but has recent known or suspected exposure to SARS-CoV-2. 
The information provided by diagnostic testing can be used by a healthcare provider to 
diagnose or treat a patient. The purpose of screening testing is to identify infected people 
who are asymptomatic and do not have known, suspected, or reported exposure to 
COVID-19. Screening testing helps to identify unknown cases both so that measures can 
be taken to prevent further transmission to others (e.g., removal from the workplace and 
home isolation) and also to allow infected, but asymptomatic, people to begin medical 
treatment, as appropriate, so they can better avoid the most severe outcomes of COVID-
19 (e.g., high risk individuals seeking monoclonal antibody treatment or anti-viral 
medication). Although the testing required in paragraph (g)(1) of this ETS is screening 
testing, both screening and diagnostic testing can help prevent the spread of COVID-19. 
Paragraph (g) does not preclude additional diagnostic testing if an employee shows signs 
or symptoms consistent with COVID-19 or has recent known or suspected exposure to 
SARS-CoV-2.
Both screening and diagnostic testing involve the use of viral COVID-19 tests to 
detect current infection, as opposed to antibody COVID-19 tests, which are used to detect 
whether a person has antibodies for COVID-19. A positive antibody test indicates 
someone has antibodies to SARS-CoV-2, the virus that causes COVID-19, which could 
either be the result of a prior infection with the virus or vaccination against COVID-19 
(FDA, May 19, 2021; CDC, September 10, 2021). Viral tests for current infection fall 
into two categories: nucleic acid amplification tests (NAATs) and antigen tests. The Food 
and Drug Administration (FDA) (October 6, 2021) has issued a number of Emergency 
Use Authorizations (EUAs) for viral COVID-19 tests. It is important to note that OSHA’s 
definition of “COVID-19 test” requires that COVID-19 tests be cleared, approved, or 
authorized by the FDA and administered in accordance with authorized instructions, with 
the noted exception of not allowing tests that are both self-administered and self-read by 

the employee unless observed by the employer or an authorized telehealth proctor. In this 
regard, OSHA recognizes that it is within FDA’s authority and jurisdiction to help to 
assure the appropriate safety, efficacy, and accuracy of COVID-19 tests. The definition 
of “COVID-19 test” has previously been discussed in the Summary and Explanation for 
paragraph (c) (Section VI.C. of this preamble). Additional information about the type of 
COVID-19 tests that would satisfy the requirements of paragraph (g) are available in that 
section of this preamble.  
As explained above, the most effective and efficient workplace control for 
preventing the spread of COVID-19 is vaccination and OSHA strongly prefers that 
employers implement written mandatory vaccination policies. However, where 
employers have unvaccinated employees, regular COVID-19 screening tests are 
necessary so infected employees can be identified and removed from the workplace to 
prevent workplace transmission and to facilitate early medical intervention, when 
appropriate. In addition to being more likely to become infected with COVID-19, people 
who are unvaccinated are more likely to experience severe clinical outcomes from 
COVID-19 than fully vaccinated people (see Grave Danger, Section III.A. of this 
preamble). In a recent CDC Morbidity and Mortality Weekly Report (MMWR) out of 
Los Angeles County, the SARS-CoV-2 infection rate among unvaccinated persons was 
4.9 times and the hospitalization rate was 29.2 times the rates among fully vaccinated 
persons (Griffin et al., August 27, 2021). As explained below, regular screening testing of 
individuals for COVID-19 is an effective method of identifying asymptomatic and pre-
symptomatic infections. Screening testing of unvaccinated employees is necessary 
because symptom and temperature checks will miss both asymptomatic and pre-
symptomatic infections, which is a serious problem because pre-symptomatic and 
asymptomatic transmission are significant drivers of the continued spread of COVID-19 

(Johansson et al., January 7, 2021). Once infected employees are identified, they can be 
removed from the workplace, thereby reducing virus transmission to other employees.
Several studies have indicated that the time from exposure to becoming 
contagious for COVID-19 is shorter than the time for symptoms to develop (incubation 
period), meaning that individuals can transmit SARS-CoV-2 before they begin to feel ill 
(i.e., pre-symptomatic transmission) (Nishiura et al., March 4, 2020; Tindale et al., June 
22, 2020). Pre-symptomatic individuals can transmit the virus to others before they know 
they are sick. These individuals should isolate but would not know to do so if they are 
unaware of their infection. It is also possible for individuals to be infected and 
subsequently transmit the virus without ever exhibiting symptoms. This is called 
asymptomatic transmission. A meta-analysis of 351 studies from January 1, 2020, to 
April 2, 2021, estimated that 42.8% of those infected with the SARS-CoV-2 virus 
exhibited no symptoms at the time of testing and so had either asymptomatic or pre-
symptomatic infections (Sah et al., August 10, 2021). In another meta-analysis of studies, 
which included people of all ages at risk of contracting COVID-19 who were tested 
regardless of presence or absence of symptoms, seventeen percent of cases never 
developed symptoms during entire COVID-19 infection (i.e., asymptomatic infection). In 
those studies, a diagnosis was confirmed with a positive result on a RT-PCR and all 
positive cases had a follow-up period of at least seven days to distinguish asymptomatic 
cases from pre-symptomatic cases (Byambasuren et al., December 11, 2020). In another 
study, researchers used a decision analytical model to assess the proportion of SARS-
CoV-2 transmission from pre-symptomatic, never symptomatic, and symptomatic 
individuals in the community. Based on their modeling, they predicted that 59% of 
transmission came from asymptomatic transmission, including 35% from pre-
symptomatic individuals and 24% from individuals who never develop symptoms 
(Johansson et al., January 7, 2021).

The existence of pre-symptomatic and asymptomatic infections pose serious 
challenges to containing the spread of SARS-CoV-2. Although the risk of asymptomatic 
transmission is 42% lower than from symptomatic COVID-19 patients (Byambasuren et 
al., December 11, 2020), asymptomatic transmission may result in more transmissions 
than symptomatic cases because asymptomatic persons are less likely to be aware of their 
infection and can unknowingly continue to spread the disease to others (Sah et al., August 
10, 2021). The challenge of containing pre-symptomatic and asymptomatic SARS-CoV-2 
transmission is amplified among unvaccinated individuals because, as explained above, 
they are more likely to become infected with COVID-19 in the first place.
Because unvaccinated employees are at higher risk of COVID-19 infection and 
COVID-19 transmission among individuals without symptoms is a significant driver of 
the spread of COVID-19, OSHA has determined it is necessary to prevent the pre-
symptomatic and asymptomatic transmission of COVID-19 from unvaccinated workers, 
through a requirement for weekly screening testing. Screening testing with antigen tests 
is a rapidly evolving and important tool that can be used to reduce the spread of SARS-
CoV-2 in the workplace, particularly when coupled with other COVID-19 prevention and 
control measures (e.g., workplace removal of infected persons, proper use of face 
coverings) (Schulte et al., May 19, 2021). The CDC recommends screening testing of 
unvaccinated asymptomatic workers as a useful tool to detect COVID-19 and stop 
transmission quickly. Screening testing is particularly useful in areas with moderate to 
high community transmission of COVID-19, which is currently the overwhelming 
majority of the United States (CDC, October 7, 2021). In a study with a well-defined 
population of SARS-CoV-2 infected individuals, researchers found that frequent testing 
(i.e., at least twice per week) maximizes the likelihood of detecting infected individuals. 
However, even when used weekly, rapid antigen tests still had a 76% probability of 
detection (i.e., weekly rapid antigen tests correctly identified 76% of true positive 

infected COVID-19 individuals) (Smith et al., September 15, 2021). By identifying pre-
symptomatic and asymptomatic unvaccinated employees, employers can remove them 
from the workplace to prevent those employees from spreading SARS-CoV-2 to other 
employees. More information about the removal requirements in this ETS is available in 
the Summary and Explanation for paragraph (h) (Section VI.H. of this preamble).
Since the incubation period for COVID-19 can be up to 14 days, the CDC 
recommends that screening testing be conducted at least weekly in non-healthcare 
workplaces (CDC, October 7, 2021; CDC, May 4, 2021). Other researchers also 
recognize the effectiveness of weekly screening testing to control surges of COVID-19 
infections (Larremore, January 1, 2021). Consequently, in workplaces with unvaccinated 
employees, OSHA has set the minimum frequency of testing unvaccinated workers at 
seven days because the agency expects that it will be effective in slowing the spread of 
COVID-19 in those workplaces, when used in tandem with face coverings (paragraph (i)) 
and removal of infected individuals (paragraph (h)). OSHA emphasizes that each of these 
infection controls provides some protection from COVID-19 by itself, but that they work 
best when used together, layering their protective impact to boost overall effectiveness. 
Although some studies have shown that more regular screening testing (e.g., twice 
weekly) would identify even more cases, OSHA has decided to require testing only on a 
weekly basis.  This is in line with the CDC recommendations, and as noted above the 
evidence shows that this frequency is effective in detecting asymptomatic and pre-
symptomatic cases. A more frequent testing schedule would result in significant 
additional costs, and OSHA is hesitant to impose these costs and depart from CDC 
recommendations without a fuller record generated through the benefit of notice and 
comment rulemaking.  OSHA seeks comment on this issue. Nonetheless, it should be 
noted that nothing in this rule prevents screening testing from being conducted more 
frequently based on factors such as the level of community transmission, workplace 

experience with outbreaks, and type of workplace (e.g., specific workplace factors such 
as high volume retail or critical infrastructure sector). 
Early detection of COVID-19-positive employees through screening testing of 
unvaccinated employees also facilitates early medical intervention, when appropriate, to 
avoid the most severe health outcomes associated with COVID-19. Early effective 
treatment of disease can help avert progression to more serious illness, especially for 
patients at high risk of disease progression and severe illness, with the additional benefit 
of reducing the burden on healthcare systems (CDC, December 4, 2021). For example, 
anti-SARS-CoV-2 monoclonal antibodies have been shown to reduce the risk of 
hospitalization and death in the outpatient setting in those with mild to moderate COVID-
19 symptoms and certain risk factors for disease progression. Treatment should be started 
as soon as possible after the patient receives a positive result on a COVID-19 test and 
within 10 days of symptom onset (NIH, September 24, 2021). Any COVID-19 medical 
treatment should be used in accordance with a licensed healthcare provider.  The 
screening tests required by this rule will facilitate such treatment.
Pursuant to paragraph (g)(1)(i), covered employers must ensure that each 
employee who is not fully vaccinated and reports at least once every seven days to a 
workplace where other individuals (e.g., coworkers, customers) are present: (A) is tested 
for COVID-19 at least once every seven days; and (B) provides documentation of the 
most recent COVID-19 test result to the employer no later than the 7th day following the 
date on which the employee last provided a test result. Employers must ensure these 
unvaccinated employees are tested at least once every seven calendar days, regardless of 
their work schedule. For example, an unvaccinated part-time employee who is scheduled 
to work only every Monday and Tuesday must still be tested at least once every seven 
days. Because employees must provide documentation of their most recent COVID-19 
test results to their employers no later than the 7th day following the date on which they 

last provided a test result, employees may want to set a schedule for their testing (e.g., get 
a COVID-19 test every Wednesday). A consistent testing day may help employees ensure 
their documentation is provided every seven calendar days. 
Paragraph (g)(1)(ii) addresses situations where an employee does not report to a 
workplace where other individuals, such as coworkers or customers, are present during a 
period of seven or more days (e.g., when an employee is teleworking for an extended 
period of time). In such cases, the employer must ensure the employee is tested for 
COVID-19 within seven days prior to returning to the workplace and provides 
documentation of that test result to the employer upon return to the workplace. For 
example, if an unvaccinated office employee has been teleworking for two weeks but 
must report to the office, where other employees will be present (e.g., coworkers, security 
officers, mailroom workers), on a specific Monday to copy and fax documents, that 
employee must receive a COVID-19 test within the seven days prior to the Monday and 
provide documentation of that test result to the employer upon return to the workplace. 
The employee’s test must occur within the seven days before the Monday the employee is 
scheduled to report to the office, but it also must happen early enough to allow time for 
the results to be received before returning to the workplace. Similarly, unvaccinated new 
hires would need to be tested for COVID-19 within seven days prior to reporting to a 
workplace where other employees will be present and provide documentation of their test 
results no later than arrival on their first day of work. Since point-of-care testing that uses 
an antigen test allows for results within minutes, OSHA does not expect that scheduling 
tests or providing results to employers will be an impediment.   
OSHA chose the seven-day period for employees returning to work after more 
than a week away from the workplace based on the evidence noted above about the 
effectiveness of testing at seven-day intervals.  While it considered using a shorter time 
period in this situation, OSHA concluded that it would be less confusing for employers to 

use a uniform time period for both situations.  OSHA was concerned that requiring 
different time periods in the two situations would cause confusion among both employees 
and supervisors implementing the program that would undermine the effectiveness of the 
testing scheme.  OSHA seeks comment on this issue.
An employer has some discretion regarding how to satisfy its obligations under 
paragraph (g)(1), but those policies and procedures must be detailed in the employer’s 
written policy pursuant to paragraph (d)(2) of this ETS. For example, the employer must 
specify how testing will be conducted (e.g., testing provided by the employer at the 
workplace, employees independently scheduling tests at point-of-care locations, etc.). 
The employer must also specify in their policy how employees should provide their 
COVID-19 test results to the employer (e.g., an online portal, to the human resources 
department). The Summary and Explanation for paragraph (d) (Section VI.D. of this 
preamble) provides additional information regarding the requirements of paragraph (d)(2) 
of this ETS. Test results given to the employer must contain information that identifies 
the worker (i.e., full name plus at least one other identifier, such as date of birth), the 
specimen collection date, the type of test, the entity issuing the result (e.g., laboratory, 
healthcare entity), and the test result.
If an employer is notified that an employee has a positive screening test, the 
employer must remove that employee from the workplace pursuant to paragraph (h)(2) of 
this ETS. The employee should quarantine and the employer must not allow the 
employee to return to the workplace until they meet the requirements in paragraphs 
(h)(2)(i) through (iii). More discussion of employee notification to their employer of a 
COVID-19 positive status and removal requirements is available in the Summary and 
Explanation for paragraph (h) (Section VI.H. of this preamble).
OSHA expects that most screening testing will be antigen testing that is 
conducted at point-of-care locations due to the reduced cost and faster processing time 

when compared to NAAT testing in laboratories. Most NAATs need to be processed in a 
laboratory with variable time to results (approximately 1–2 days). In contrast, most 
antigen tests can be processed at the point of care with results available in about 15-30 
minutes (CDC, October 7, 2021). Rapid point-of-care tests are administered in various 
settings, such as: physician offices, urgent care facilities, pharmacies, school health 
clinics, workplace health clinics, long-term care facilities and nursing homes, and at 
temporary locations, such as drive-through sites managed by local organizations. As 
explained above, COVID-19 tests that are both self-administered and self-read do not 
meet the definition of “COVID-19 test” in this ETS (unless observed by the employer or 
an authorized telehealth proctor) and therefore do not satisfy the testing requirements of 
paragraph (g). 
Because antigen testing in point-of-care locations will typically produce results 
within minutes, the use of antigen testing should not result in an inability to provide the 
employer with test results in a timely fashion. However, the agency recognizes that where 
the employee or employer uses an off-site laboratory for testing, there may be delays 
beyond the employee’s or employer’s control. In the event that there is a delay in the 
laboratory reporting results and the employer permits the employee to continue working, 
OSHA will look at the pattern and practice of the individual employee or the employer’s 
testing verification process and consider refraining from enforcement where the facts 
show good faith in attempting to comply with the standard. 
OSHA has determined that employers may use pooling procedures to satisfy the 
requirements of screening testing under paragraph (g)(1). Pooling (also referred to as 
pool testing or pooled testing) means combining the same type of specimen from several 
people and conducting one laboratory test on the combined pool of specimens to detect 
SARS-CoV-2 (e.g., four samples may be tested together, using only the resources needed 
for a single test). The advantages of pooling include preserving testing resources, 

reducing the amount of time required to test large numbers of specimens (increasing 
throughput), and lowering the overall cost of testing (CDC, June 30, 2021). 
If pooling procedures are used and a pooled test result comes back negative, then 
all the specimens can be presumed negative with the single test. In other words, all of the 
employees who provided specimens for that pool test can be assumed to have a negative 
test result for SARS-CoV-2 infection. Therefore, documentation of the negative pooled 
test result would satisfy the paragraph (g)(1) documentation requirement for each 
employee in the pool and no additional testing is necessary. However, if the pooled test 
result is positive, immediate additional testing would be necessary to determine which 
employees are positive or negative. Each of the original specimens collected in the pool 
must be tested individually to determine which specimen(s) is (are) positive. If original 
specimens from the workers in a pooled test with a positive result are insufficient to be 
subsequently tested individually, those workers in the positive pool would need to be 
immediately re-swabbed and tested. The individual employee test results would be 
necessary to satisfy the employee documentation requirements of paragraph (g)(1). 
Where pooled testing is used (in accordance with paragraph (g)(1)), CDC and FDA 
procedures and recommendations for implementing screening pooled tests should be 
followed (CDC, June 30, 2021; FDA, August 24, 2020).  OSHA notes that only some 
tests are authorized for pooled testing, and should be performed per the authorization.
In a note to paragraph (g)(1), OSHA explains that this section does not require the 
employer to pay for any costs associated with testing.  As explained in Pertinent Legal 
Authority, Section II. of this preamble, the OSH Act authorizes OSHA to require 
employers to bear the costs of compliance with occupational safety and health standards, 
but OSHA has discretion to decide whether to impose certain costs—such as those 
related to medical examinations or other tests—on employers “[w]here [it determines that 
such costs are] appropriate.” 29 U.S.C. 655(b)(7).  OSHA has commonly required 

employers to bear the costs of compliance with standards as a cost of doing business, 
including requiring employers to bear the costs of medical examinations and procedures 
(see, e.g., 29 CFR 1910.1018(n)(1)(i) (inorganic arsenic standard requires employers to 
ensure that medical examinations and procedures are provided “without cost to the 
employee”); see also United Steelworkers, 647 F.2d at 1229-31 (discussing Lead 
standard’s medical removal provisions and OSHA’s authority for imposing cost of 
medical removal on employers)).  Requiring employers to bear the costs of compliance 
makes it more likely that employees will take advantage of workplace protections (see 86 
FR 32605).  For example, employees are more likely to use personal protective 
equipment (PPE) when employers provide the PPE to their employees at no cost (see 72 
FR 64342, 64344). 
In this ETS, OSHA has largely required employers to bear the costs of 
compliance, including the typical costs associated with vaccination, but has determined 
that it would not be appropriate to impose on employers any costs associated with 
COVID-19 testing for employees who choose not to be vaccinated.  As explained in Need 
for the ETS, Section III.B. of this preamble, this ETS is designed to strongly encourage 
vaccination because vaccination is the most efficient and effective control for protecting 
unvaccinated workers from the grave danger posed by COVID-19.  COVID-19 testing is 
only required under the ETS where an employee has made an individual choice to forgo 
vaccination and pursue a less protective option.  Given the superior protectiveness of 
vaccination, and OSHA’s intent for this ETS to strongly encourage vaccination, requiring 
employers to bear the costs of COVID-19 testing would be counter-productive.  As 
mentioned above, requiring employers to pay for workplace protections makes it more 
likely that employees will take advantage of that protection, and in this ETS, OSHA 
intends to strongly encourage employees to choose vaccination, not regular COVID-19 
testing.  Because employees who choose to remain unvaccinated will generally be 

required to pay for their own COVID-19 testing, this standard creates a financial 
incentive for those employees to become fully vaccinated and avoid that cost.
Although this ETS does not require employers to pay for testing, employer 
payment for testing may be required by other laws, regulations, or collective bargaining 
agreements or other collectively negotiated agreements. This section also does not 
prohibit the employer from paying for costs associated with testing required by paragraph 
(g)(1) of this section. Otherwise, the agency leaves the decision regarding who pays for 
the testing to the employer. Because OSHA does not specify who pays for the testing, 
OSHA expects that some workers and/or their representatives will negotiate the terms of 
payment. OSHA has also considered that some employers may choose to pay for some or 
all of the costs of testing as an inducement to keep employees in a tight labor market. 
Other employers may choose to put the full cost of testing on employees in recognition of 
the employee’s decision not to become fully vaccinated. It is also possible that some 
employers may be required to cover the cost of testing for employees pursuant to other 
laws or regulations. OSHA notes, for instance, that in certain circumstances, the 
employer may be required, under the Fair Labor Standards Act, to pay for the time it 
takes an employee to be tested  (e.g., if employee testing is conducted in the middle of a 
work shift). The subject of payment for the costs associated with testing pursuant to other 
laws or regulations not associated with the OSH Act is beyond OSHA’s authority and 
jurisdiction. As explained in a note to paragraph (d) of this ETS, under various anti-
discrimination laws, workers who cannot be  tested because of a sincerely held religious 
belief may ask for a reasonable accommodation from their employer. For more 
information about evaluating requests for reasonable accommodation for a sincerely held 
religious belief, employers should consult the Equal Employment Opportunity 
Commission’s website: https://www.eeoc.gov/wysk/what-you-should-know-about-covid-
19-and-ada-rehabilitation-act-and-other-eeo-laws.  

Pursuant to paragraph (g)(2), if an employee does not provide the result of a 
COVID-19 test as required by paragraph (g)(1), the employer must keep the employee 
removed from the workplace until the employee provides a test result. This provision is 
imperative because workers with asymptomatic or pre-symptomatic SARS-CoV-2 
infection are significant contributors to COVID-19 transmission, and screening testing 
will help to identify and remove those individuals from the workplace. Employees 
providing accurate and weekly test results to their employer is of utmost importance for 
preventing and reducing the transmission of COVID-19 in the workplace. 
Paragraph (g)(3) provides that when an employee has received a positive COVID-
19 test, or has been diagnosed with COVID-19 by a licensed healthcare provider, the 
employer must not require that employee to undergo COVID-19 testing for 90 days 
following the date of their positive test or diagnosis. This provision is specifically 
intended to prohibit screening testing for 90 days because of the high likelihood of false 
positive results that do not indicate active infection but are rather a reflection of past 
infection. Studies of patients who were hospitalized and recovered indicate that SARS-
CoV-2 RNA can be detected in upper respiratory tract specimens for up to three months 
(90 days) after symptom onset (CDC, August 2, 2021; CDC, September 14, 2021). If 
employees were to be subjected to screening tests in such a situation it would both 
undermine the confidence in the COVID-19 screening tests and could result in a harm to 
the worker of being unnecessarily removed from the workplace and subjected to the 
additional burden of unnecessary tests. Where employers implement a vaccination policy 
that allows employees to choose to provide proof of regular testing and wear a face 
covering rather than getting vaccinated, the employer’s policy and procedures to 
implement this temporary suspension of testing must be included in their written 
workplace policy as required by paragraph (d)(2) of this ETS.

Paragraph (g)(4) provides that the employer must maintain a record of each test 
result required to be provided by each employee under paragraph (g)(1) of this ETS or 
obtained during tests conducted by the employer. These records must be maintained in 
accordance with 29 CFR 1910.1020 as an employee medical record and must not be 
disclosed except as required by this ETS or other federal law. However, these records are 
not subject to the retention requirements of 29 CFR 1910.1020(d)(1)(i) (Employee 
medical records), but must be maintained and preserved while this ETS remains in effect. 
Additionally, paragraph (l) of this ETS includes specific timeframes for providing 
access to records, including the COVID-19 test results required by paragraph (g)(1). As a 
result, the timeframes for providing access to employee medical records in 29 CFR 
1910.1020(e) do not apply. Instead, when providing access to an employee, anyone with 
written authorized consent from that employee, and OSHA, employers must follow the 
access timeframes set forth in paragraph (l) of this ETS. The Summary and Explanation 
for paragraph (l) (Section VI.L. of this preamble) contains additional information about 
accessing records gathered pursuant to paragraph (g)(1).
Finally, while the access timeframes in 29 CFR 1910.1020(e) and retention 
requirements of 29 CFR 1910.1020(d)(1)(i) do not apply to test result records required by 
this ETS, the other provisions in 29 CFR 1910.1020 do apply. For example, 29 CFR 
1910.1020(h) includes requirements for the transfer of employee medical records when 
an employer ceases to do business. Like the vaccine records required by paragraph (e)(4) 
of this ETS, and because they concern the health status of an employee, test result records 
required by paragraph (g)(1) are employee medical records for purposes of 29 CFR 
1910.1020. These test result records contain personally identifiable medical information 
and must be maintained in a confidential manner. The Summary and Explanation for 
paragraph (e) (Section VI.E. of this preamble) contains additional information about the 
interplay between this ETS and OSHA’s regulation at 29 CFR 1910.1020.    

References: 
Bender et al., (2021, February 18). Analysis of Asymptomatic and Presymptomatic 
Transmission in SARS-CoV-2 Outbreak, Germany, 2020. 
https://wwwnc.cdc.gov/eid/article/27/4/20-4576_article. (Bender et al., February 18, 
2021).
Byambasuren O et al. (2020, December 11). Estimating the extent of asymptomatic 
COVID-19 and its potential for community transmission: Systematic review and meta-
analysis. Official Journal of the Association of Medical Microbiology and Infectious 
Disease Canada. 5(4): 223-234 doi:10.3138/jammi-2020-0030. (Byambasuren et al., 
December 11, 2020). 
Centers for Disease Control and Prevention (CDC). (2020, December 4). Information for 
Clinicians on Investigational Therapeutics for Patients with COVID-19. 
https://www.cdc.gov/coronavirus/2019-ncov/hcp/therapeutic-options.html. (CDC, 
December 4, 2020). 
Centers for Disease Control and Prevention (CDC). (2021, May 4). Antigen Testing for 
Screening in Non-Healthcare Workplaces: A tool to prevent the spread of COVID-19. 
https://www.cdc.gov/coronavirus/2019-ncov/community/workplaces-businesses/antigen-
testing.html. (CDC, May 4, 2021). 
Centers for Disease Control and Prevention (CDC). (2021, June 30). Interim Guidance 
for Use of Pooling Procedures in SARS-CoV-2 Diagnostic and Screening Testing. 
https://www.cdc.gov/coronavirus/2019-ncov/lab/pooling-procedures.html. (CDC, June 
30, 2021).
Centers for Disease Control and Prevention (CDC). (2021, August 2). COVID-19 Testing 
Overview. https://www.cdc.gov/coronavirus/2019-ncov/symptoms-testing/testing.html. 
(CDC, August 2, 2021).
Centers for Disease Control and Prevention (CDC). (2021, September 10). Using 
Antibody Tests for COVID-19. https://www.cdc.gov/coronavirus/2019-
ncov/lab/resources/antibody-tests.html. (CDC, September 10, 2021). 
Centers for Disease Control and Prevention (CDC). (2021, September 14). Ending 
Isolation and Precautions for People with COVID-19: Interim Guidance. 
https://www.cdc.gov/coronavirus/2019-ncov/hcp/duration-isolation.html. (CDC, 
September 14, 2021).
Centers for Disease Control and Prevention (CDC). (2021, September 15). Science 
Brief:COVID-19 Vaccines and Vaccination. https://www.cdc.gov/coronavirus/2019-
ncov/science/science-briefs/fully-vaccinated-people.html. (CDC, September 15, 2021). 
Centers for Disease Control and Prevention (CDC). (2021, October 7) Interim Guidance 
for SARS-CoV-2 Testing in Non-Healthcare Workplaces. 
https://www.cdc.gov/coronavirus/2019-ncov/community/organizations/testing-non-
healthcare-workplaces.html. (CDC, October 7, 2021).
Food and Drug Administration (FDA). (2020, August 24). Pooled Sample Testing and 
Screening Testing for COVID-19. https://www.fda.gov/medical-devices/coronavirus-

covid-19-and-medical-devices/pooled-sample-testing-and-screening-testing-covid-19. 
(FDA, August 24, 2020).
Food and Drug Administration (FDA). (2021, May 19). Antibody Testing Is Not 
Currently Recommended to Assess Immunity After COVID-19 Vaccination: FDA Safety 
Communication. https://www.fda.gov/medical-devices/safety-communications/antibody-
testing-not-currently-recommended-assess-immunity-after-covid-19-vaccination-fda-
safety. (FDA, May 19, 2021). 
Food and Drug Administration (FDA). (2021, October 6). In Vitro Diagnostics EUAs. 
https://www.fda.gov/medical-devices/coronavirus-disease-2019-covid-19-emergency-use-
authorizations-medical-devices/in-vitro-diagnostics-euas. (FDA, October 6, 2021).
Griffin JB et al. (2021, August 27). SARS-CoV-2 infections and hospitalizations among 
persons aged ≥16 years, by vaccination status — Los Angeles County, California, May 
1–July 25, 2021. MMWR 70: 1170–1176. http://dx.doi.org/10.15585/mmwr.mm7034e5. 
(Griffin et al., August 27, 2021). 
Johansson MA et al. (2021, January 7). SARS-CoV-2 transmission from people without 
COVID-19 symptoms. JAMA Network Open. 4(1): e2035057. 
doi:10.1001/jamanetworkopen.2020.35057. (Johansson et al., January 7, 2021).
Klompas M et al., (2021, September). The case for mandating COVID-19 vaccines for 
health care workers. Annals of Internal Medicine. https://doi.org/10.7326/M21-2366. 
(Klompas et al., September 2021).
Larremore DB et al. (2021, January 1). Test sensitivity is secondary to frequency and 
turnaround time for COVID-19 screening. Sci Adv 2021; 7(1): eabd5393. 
https://doi.org/10.1126/sciadv.abd5393. (Larremore, January 1, 2021).
Lopez Bernal et al. (2021, July 21). Effectiveness of Covid-19 vaccines against the 
B.1.617.2 (Delta) variant. The New England Journal of Medicine, 385(7), 585–594. 
https://doi.org/10.1056/NEJMoa2108891. (Lopez Bernal, July 21, 2021). 
National Institutes of Health (NIH). (2021, September 24). Therapeutic Management of 
Nonhospitalized Adults With COVID-19. 
https://www.covid19treatmentguidelines.nih.gov/management/clinical-
management/nonhospitalized-adults--therapeutic-management/. (NIH, September 24, 
2021). 
Nishiura H et al. (2020, March 4). Serial interval of novel coronavirus (COVID-19) 
infections. Int J Infect Dis. 2020 Apr; 93: 284-286. doi:10.1016/j.ijid.2020.02.060. Epub 
2020 Mar 4. PMID: 32145466; PMCID: PMC7128842. (Nishiura et al., March 4, 2020). 
Sah P et al. (2021, August 10). Asymptomatic sars-cov-2 infection: A systematic review 
and meta-analysis. Proceedings of the National Academy of Sciences, 118(34), 1–12. 
https://doi.org/10.1073/pnas.2109229118. (Sah et al., August 10, 2021).
Schulte P et al. (2021, May 19). Proposed Framework for Considering SARS-CoV-2 
Antigen Testing of Unexposed Asymptomatic Workers in Selected Workplaces. J Occup 
Environ Med. 2021 Aug; 63(8): 646–656. Published online 2021, May 19. 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8327768/. (Schulte et al., May 19, 2021). 

Smith R et al. (2021, September 15). Longitudinal assessment of diagnostic test 
performance over the course of acute SARS-CoV-2 infection. The Journal of Infectious 
Diseases; 224(6), 976–982. https://doi.org/10.1093/infdis/jiab337. (Smith et al., 
September 15, 2021). 
Tindale LC et al. (2020, June 22). Evidence for transmission of COVID-19 prior to 
symptom onset. Elife. 2020; 9: e57149. Published 2020 Jun 22. doi:10.7554/eLife.57149. 
(Tindale et al., June 22, 2020).
H. Employee Notification to Employer of a Positive COVID-19 Test and Removal
Employers can substantially reduce disease transmission in the workplace by 
removing employees who are confirmed to have COVID-19 based on a COVID-19 test 
or diagnosis by a healthcare provider. It is necessary that employees who are confirmed 
to have COVID-19 be removed from the workplace to prevent transmission to other 
employees. Several studies have focused on the impact of isolating persons with COVID-
19 from others during their likely known infectious period, and those studies show that 
isolation is a strategy that reduces the transmission of infections. For example, Kucharski 
et al. (2020) found that transmission of SARS-CoV-2 would decrease by 29% with self-
isolation within the household, which would extend to 37% if the entire household 
quarantined. Similarly, Wells et al. (2021) found that isolation of individuals at symptom 
onset would decrease the reproductive rate (R0) of COVID-19 from 2.5 to 1.6. Lastly, 
Moghadas et al. (2020) reported results that highlight the role of silent transmission, from 
a combination of the pre-symptomatic stage and asymptomatic infections, as the primary 
driver of COVID-19 outbreaks and underscore the need for mitigation strategies, 
including those that detect and isolate infectious individuals prior to the onset of 
symptoms. Isolating contagious employees from their co-workers can prevent further 
spread at the workplace and safeguard the health of other employees.
Paragraph (h) provides that employers must require each employee to promptly 
notify the employer when the employee receives a positive COVID-19 test or is 
diagnosed with COVID-19 by a licensed healthcare provider. This notification must 

occur regardless of employee vaccination status. As discussed in Grave Danger (Section 
III.A. of this preamble), exposure to SARS-CoV-2 in the workplace presents a grave 
danger to employees; removing those who are confirmed to have COVID-19 from the 
workplace mitigates that grave danger. This is true even for fully vaccinated employees 
since they also have the potential to transmit COVID-19 to other individuals, including 
other employees. Because the goal of this ETS, and the notification requirements in this 
paragraph, is to reduce transmission of COVID-19 in the workplace, employees are 
required to notify the employer of any COVID-19 positive test or diagnosis that they 
receive, not just positive results that are received from testing required under paragraph 
(g) of this ETS. 
Paragraph (h)(1) states that the employer must require each employee who is 
COVID-19 positive to notify the employer of their COVID-19 test result or diagnosis 
“promptly.” For employees who are not at the workplace when they receive a positive 
COVID-19 test result or diagnosis, “promptly” notifying the employer means notifying 
the employer as soon as practicable before the employee is scheduled to start their shift or 
return to work. In the event that the employee is in the workplace when they receive a 
positive COVID-19 test result or diagnosis of COVID-19, “promptly” notifying the 
employer means notifying the employer as soon as safely possible while avoiding 
exposing any other individuals in the workplace. 
The employer should establish notification procedures and inform employees 
about these procedures (see paragraph (j)(1)), so that employees are aware of the 
appropriate method for providing this notification to their employer. These notification 
procedures can be based on the employer’s current protocols for employees to notify the 
employer if they are not able to come to work or need to leave work because of illness or 
injury. However the employer chooses to implement its notification procedures, it must 
ensure that an employee notification of a positive COVID-19 test or diagnoses results in 

the employee’s immediate removal from the workplace, as required under paragraph 
(h)(2).  For example, the employer may require employees to report any positive COVID-
19 test or diagnosis to a company supervisor with the authority to temporarily remove the 
employee from the workplace. If an employer takes all steps required under this 
paragraph but an employee fails to report required information, the ETS does not dictate 
that any disciplinary action be taken against the employee. If an employer is cited by 
OSHA under this provision under such circumstances, the employer is entitled to contest 
the citation if it can establish an employee misconduct defense in accordance with 
applicable case law.  
The notification requirement in paragraph (h)(1) is an important measure to 
ensure employers can take adequate steps to protect their employees from the hazard of 
COVID-19 because it is connected to a parallel requirement in paragraph (h)(2) to 
remove, from the workplace, any employee who receives a positive COVID-19 test or is 
diagnosed with COVID-19. It is important to remove employees who test positive or are 
diagnosed with COVID-19 from the workplace as soon as possible to prevent the 
transmission of COVID-19 to other employees. Therefore, the requirement that 
employees promptly inform their employer of a positive COVID-19 test result or 
COVID-19 diagnosis is necessary because this information allows the employer to take 
actions to protect other employees, including most critically by removing employees 
whose illness poses a direct threat of infection to other employees in the workplace. 
 Paragraph (h)(2) requires employers to immediately remove from the workplace 
any employee, regardless of vaccination status, who receives a positive COVID-19 test or 
is diagnosed with COVID-19 by a licensed healthcare provider. OSHA determined that 
directing an employee who tests positive or is diagnosed with COVID-19 to stay home 
until return to work criteria are achieved is critical to preventing the transmission of 
COVID-19 in the workplace. Similar to the notification required in paragraph (h)(1), this 

removal must occur regardless of employee vaccination status since someone who is fully 
vaccinated can still transmit COVID-19 to others, including other employees (see Grave 
Danger, Section III.A. of this preamble). 
OSHA notes that, in most circumstances, any positive COVID-19 test would 
result in removal. However, this is not necessarily the case where an employer uses 
pooled COVID-19 testing, a method where one laboratory test is conducted using the 
specimens of several people to detect the virus that causes COVID-19 (CDC, June 30, 
2021). If an employer conducts pooled testing for COVID-19, a positive pooled test 
result would trigger a need to immediately re-test those employees in the pool using an 
individual COVID-19 test because the positive pooled result would not satisfy the 
requirements of paragraph (g). Only those employees who test positive on their 
individual re-test would need to be removed from the workplace. 
OSHA intends “removal” under paragraph (h)(2) to refer only to the temporary 
removal from the workplace of an employee while that employee is infectious. The 
requirement in paragraph (h)(2) to temporarily remove a COVID-19 positive employee 
from the workplace does not mean permanent removal of an employee from their 
position. Any time an employee is required to be removed from the workplace under 
paragraph (h)(2) of this section, the employer can require the employee to work remotely 
or in isolation if suitable work is available and if the employee is not too ill to work. In 
cases where working remotely or in isolation is not possible, OSHA encourages 
employers to consider flexible and creative solutions, such as a temporary reassignment 
to a different position that can be performed by telework. However, if an employee is too 
ill to work, remote work should not be required, and sick leave or other leave should be 
made available as consistent with the employer’s general policies and practices, and as 
may be required under applicable laws.

 After an employee has been removed from the workplace as required by 
paragraph (h)(2), the employer must ensure that they do not return to the workplace until 
the employee meets one of three criteria outlined in paragraphs (h)(2)(i) through 
(h)(2)(iii). The purpose of these provisions is to ensure that an employee who has 
COVID-19 does not return to work until the risk that they will transmit the disease to 
others in the workplace has been minimized. Each of these provisions is based on the best 
scientific evidence available on when a person with COVID-19 is no longer likely to 
transmit the virus.
Under paragraph (h)(2)(i), the employee can return to work if they receive a 
negative result on a COVID-19 nucleic acid amplification test (NAAT) following a 
positive result on a COVID-19 antigen test (the most common screening test). There is a 
small possibility for employees to receive false positive test results when conducting 
regular screening with an antigen test. Positive results are usually highly accurate at 
moderate-to-high peak viral load, but false positives can occur, depending on the course 
of infection (FDA, April 2021). OSHA recognizes that an employee might choose to seek 
a NAAT test for confirmatory testing. NAATs are considered the “gold standard” for 
clinical diagnosis of SARS-CoV-2 and may have a higher sensitivity (i.e., ability to 
correctly generate a positive result) than antigen tests (CDC, September 9, 2021). If an 
employee tested positive for COVID-19 via an antigen test, but then received follow-up 
confirmatory testing via a NAAT and the NAAT was negative, the positive antigen test 
can be considered a false positive and the employee can return to work (CDC, September 
9, 2021). For a more detailed discussion of COVID-19 tests, see the Summary and 
Explanation for paragraph (c) (Section VI.C. of this preamble).
The employee may also return to work if they meet the return to work criteria in 
CDC’s “Isolation Guidance” (incorporated by reference, § 1910.509) (CDC, February 18, 
2021) as described in paragraph (h)(2)(ii). CDC’s guidance states that a COVID-19 

positive person can stop isolating when three criteria are met: (1) at least ten days have 
passed since the first appearance of the person’s symptoms; (2) the person has gone at 
least 24 hours without a fever (without the use of fever-reducing medication); and (3) the 
person’s other symptoms of COVID-19 are improving (excluding loss of taste and smell).  
If a person has tested positive but never experiences symptoms, then the person can stop 
isolating after ten days from the date of their positive test. These recommendations are 
based on scientific evidence reviewed by CDC, which indicates that levels of viral RNA 
in upper respiratory tract samples begin decreasing after the onset of symptoms (CDC, 
September 14, 2021). The rationale for including CDC’s “Isolation Guidance” in the ETS 
was addressed in detail in Need for Specific Provisions in the agency’s prior rulemaking 
on 1910.502 (see 86 FR 32376, 32455). 
Finally, the employee may return to work, per paragraph (h)(2)(iii), if the 
employee receives a return-to-work recommendation from a licensed healthcare provider. 
The appropriate duration of removal from work for any given individual may differ 
depending on factors such as disease severity or the health of the employee’s immune 
system. For this reason, the ETS permits employers to make decisions about an 
employee’s return to work in accordance with guidance from a licensed healthcare 
provider (who would be better acquainted with a particular employee’s condition). If a 
licensed healthcare provider recommends a longer period of isolation for a particular 
employee than the CDC’s “Isolation Guidance” would otherwise recommend, then the 
employer would need to abide by that longer period rather than returning the employee to 
work after ten days.
OSHA’s removal requirements as outlined in paragraph (h)(2) are intended to set 
the floor for what is required; however, OSHA encourages employers who are able to do 
so to have a more robust program of medical removal, as indeed some employers have 
already done. In addition to removal from the workplace based on a positive COVID-19 

test or diagnosis of COVID-19, employers may consider removal based on COVID-19 
symptoms or certain exposure or close contacts employees have had outside of the 
workplace. Similarly, employers may consider removing employees from the workplace 
if the employer learns that the employee was notified by a state or local public health 
authority to quarantine or isolate; the employer might even be contacted by such an 
authority directly. Although this ETS does not require removal from the workplace in 
those situations, the employer might choose to remove employees from the workplace, 
above and beyond what is required by this ETS. 
Finally, the note to paragraph (h)(2) clarifies that this ETS does not require 
employers to provide paid time to any employee for removal as a result of a positive 
COVID-19 test or diagnosis of COVID-19; however, paid time may be required by other 
laws, regulations, or collective bargaining agreements or other collectively negotiated 
agreements. On the other hand, the ETS does not preclude employers from choosing to 
pay employees for time required for removal under this standard. Additionally, 
employers should allow their employees to make use of any accrued leave in accordance 
with the employer’s policies and practices on use of leave. This provision, while not 
placing the burden on the employer to provide paid time, should not be read as depriving 
employees of the benefits they are normally entitled to as part of their employment.
Because it does not require employers to provide paid time to employees who are 
removed for a positive COVID-19 test or diagnosis of COVID-19, this ETS differs from 
OSHA’s COVID-19 Healthcare ETS, which applies to employees in the healthcare 
industry who are expected to be exposed to COVID-19, and requires paid medical 
removal protection benefits (§ 1910.502(l)(5)) for most employees. This difference 
reflects the structure and focus of this ETS relative to the Healthcare ETS.  The 
Healthcare ETS requires employees to report symptoms of COVID-19 to their employers, 
as well as positive COVID-19 tests or diagnoses (see § 1910.502(l)(2)), but does not 

require employees to be regularly tested for COVID-19. A primary function of the 
payment for medical removal in that standard is, therefore, to remove the potential for 
financial disincentives that might deter employees from reporting any signs or symptoms 
of COVID-19 that they experience. Because this ETS already requires testing for 
unvaccinated workers, which should result in employers learning of cases of COVID-19 
in unvaccinated workers, and does not otherwise require employees to report signs and 
symptoms of COVID-19 to their employers, OSHA found that requiring employer 
payment for removal was not necessary in this standard.
As the note to paragraph (h) indicates, the employer may be required to follow 
other laws or regulations that would require paid medical removal. For example, if an 
employee covered by this ETS believes they were exposed to COVID-19 in the 
workplace and then tested positive, that employee may be entitled to workers’ 
compensation benefits. Workers’ compensation is a system already in place to provide 
benefits to employees who get sick or injured on the job from occupational disease or a 
work-related injury. Some states have expressly clarified or expanded their workers 
compensation rules to allow for COVID-19 claims during the pandemic (see, e.g., 
Industrial Commission of Arizona, May 15, 2020; Connecticut Executive Order No. 7JJJ, 
July 24, 2020; Minn. Stat. Ann. § 176.011 Subd. (15)(f), 2020)). 
Finally, the ETS does not contain specific requirements under this paragraph for 
the employer to establish or maintain records of employee notifications of a positive 
COVID-19 test or diagnosis of COVID-19 by a licensed healthcare provider.  However, 
should an employer determine that a reported case of COVID-19 is work-related, the 
employer must continue to record that information on the OSHA Forms 300, 300A, and 
301, or on equivalent forms, if required to do so under 29 CFR part 1904. This also 
includes confirmed cases of COVID-19 identified under paragraph (h) that an employer 
determines are work-related. Under 29 CFR part 1904, COVID-19 is a recordable illness 

and employers are responsible for recording cases of COVID-19 if: (1) the case is a 
confirmed case of COVID-19 as defined by the Centers for Disease Control and 
Prevention (CDC); (2) the case is work-related as defined by 29 CFR part 1904.5; and (3) 
the case involves one or more of the general recording criteria in set forth in 29 CFR part 
1904.7 (e.g., medical treatment beyond first aid, days away from work). Under 29 CFR 
part 1904, employers must generally provide access to the 300 log to employees, former 
employees, and their representatives with the names of injured or ill employees included 
on the form. If, however, the employee requests that their name not be entered on the 300 
log, the employer must treat their illness as a privacy concern case and may not enter 
their name on the log (see 29 CFR 1904.29(b)(6), (b)(7)(vi)).  
References: 
Centers for Disease Control and Prevention (CDC). (2021, February 18). Isolate if you 
are sick. https://www.cdc.gov/ coronavirus/2019-ncov/if-you-are-sick/ isolation.html. 
(CDC, February 18, 2021).
Centers for Disease Control and Prevention (CDC). (2021, June 30). Interim Guidance 
for Use of Pooling Procedures in SARS-CoV-2 Diagnostic and Screening Testing. 
https://www.cdc.gov/coronavirus/2019-ncov/lab/pooling-procedures.html. (CDC, June 
30, 2021) 
Centers for Disease Control and Prevention (CDC). (2021, September 9). Interim 
Guidance for Antigen Testing for SARS-CoV-2. https://www.cdc.gov/coronavirus/2019-
ncov/lab/resources/antigen-tests-guidelines.html. (CDC, September 9, 2021).
Centers for Disease Control and Prevention (CDC). (2021, September 14). Ending 
Isolation and Precautions for People with COVID-19: Interim Guidance. 
https://www.cdc.gov/coronavirus/2019-ncov/hcp/duration-isolation.html. (CDC, 
September 14, 2021). 
Connecticut Executive Order No. 7JJJ. (2020, July 24). Executive Order No. 7JJJ 
Protection of public health and safety during COVID-19 pandemic and response – 
rebuttable presumption regarding workers compensation benefits related to contraction of 
COVID-19. https://portal.ct.gov/-/media/Office-of-the-Governor/Executive-
Orders/Lamont-Executive-Orders/Executive-Order-No-7JJJ.pdf. (Connecticut Executive 
Order No. 7JJJ, July 24, 2020). 
Food and Drug Administration (FDA). (2021, April). Coronavirus Disease 2019 Testing 
Basics. https://www.fda.gov/media/140161/download. (FDA, April 2021).

Industrial Commission of Arizona. (2020, May 15). COVID-19 Workers’ Compensation 
Claims. https://www.azica.gov/sites/default/files/SPS%20-COVID-19%20FINAL.pdf. 
(Industrial Commission of Arizona, May 15, 2020). 
Kucharski AJ et al. (2020). Effectiveness of isolation, testing, contact tracing, and 
physical distancing on reducing transmission of SARS-CoV-2 in different settings: a 
mathematical modelling study. The Lancet Infectious Disease. 2020 Oct; 20(10): 1151-
1160. doi:10.1016/S1473-3099(20)30457-6. Epub 2020 Jun 16. PMID: 32559451; 
PMCID: PMC7511527. (Kucharski et al., 2020)  
Minnesota Statutes Annotated, Section 176.011 Definitions. Subd. 15(f). (2020). 
https://www.revisor.mn.gov/statutes/cite/176.011/pdf. (Minn. Stat. Ann. § 176.011 Subd. 
(15)(f), 2020)
Moghadas S et al. (2020, July 6). The implications of silent transmission for the control of 
COVID-19 outbreaks. Proceedings of the National Academy of Sciences of the United 
States of America, 117(30), 17513-17515. doi:https://doi.org/10.1073/pnas.2008373117. 
(Moghadas et al., July 6, 2020)  
Wells CR et al. (2021). Optimal COVID-19 quarantine and testing strategies. 
Nature Communications 2021 Jan 7; 12(1): 356. doi:10.1038/s41467-020-20742-8. 
PMID: 33414470; PMCID: PMC7788536. (Wells et al., 2021)
I. Face Coverings  
 Paragraph (i) of this standard addresses the use of face coverings.  As previously 
discussed in Grave Danger (Section III.A. of this preamble), COVID-19 spreads when an 
infected person breathes out droplets and very small particles that contain the virus. 
These droplets and particles can be breathed in by other people or land on their eyes, 
noses, or mouth. Face coverings reduce the risk of droplet transmission of COVID-19. 
The CDC recommends that people who are not fully vaccinated wear a face covering 
(e.g., a mask) in indoor public places. (CDC, July 14, 2021). Additional discussion on the 
efficacy of face coverings is provided below.
Face coverings are simple bi-directional barriers that tend to keep droplets, and to 
a lesser extent airborne particulates, on the side of the filter from which they originate. 
An explanation of the term “face covering”, as used in this ETS, can be found in the 
Summary and Explanation for paragraph (c) (Section VI.C. of this preamble). The CDC 
(August 13, 2021) recommends unvaccinated people wear face coverings when indoors 
to prevent getting and spreading COVID-19 mostly by blocking large respiratory droplets 

from either leaving the face covering of the wearer (source control) or by preventing 
someone else’s droplets from reaching the wearer (personal protection). The need for 
face coverings in workplaces applies particularly to unvaccinated workers due to their 
increased potential for asymptomatic and pre-symptomatic transmission of COVID-19. 
The CDC Healthcare Infection Control Practices Advisory Committee’s 
(HICPAC) “Isolation Guidance” for healthcare settings has long recommended 
facemasks, among other controls, to prevent the transmission of viruses that cause 
respiratory illnesses (Siegel et al., 2007). Face coverings play an important dual role in 
protecting workers from droplet transmission of COVID-19. One of their key purposes is 
to function as source control.  In this role, the face covering helps protect people around 
the wearer by reducing the number of infectious droplets released into the air by the 
wearer and limiting the distance traveled by any particles that are released. As a result, 
anyone near the wearer is exposed to fewer (if any) droplets and the transmission risk is 
lowered (OSHA, January 28, 2021; Siegel et al., 2007). Face coverings also provide a 
degree of particulate filtration to reduce the amount of inhaled particulate matter, 
meaning face coverings can help protect the wearer themselves, by reducing their 
inhalation of droplets produced by an infected person nearby (CDC, May 7, 2021; Brooks 
et al., February 10, 2021). 
The efficacy of any given face covering in either functioning as source control or 
protecting the wearer will depend on the construction, design, and material used for the 
face covering. The CDC has stated that “masks are primarily intended to reduce the 
emission of virus-laden droplets (“source control”), which is especially relevant for 
asymptomatic or presymptomatic infected wearers who feel well and may be unaware of 
their infectiousness to others, and who are estimated to account for more than 50% of 
transmissions” (CDC, May 7, 2021). The CDC has also stated that:  “Multi-layer cloth 
masks block release of exhaled respiratory particles into the environment, along with the 

microorganisms these particles carry. Cloth masks not only effectively block most large 
droplets (i.e., 20-30 microns and larger) but they can also block the exhalation of fine 
droplets and particles (also often referred to as aerosols) smaller than 10 microns; which 
increase in number with the volume of speech and specific types of phonation. Multi-
layer cloth masks can both block up to 50-70% of these fine droplets and particles and 
limit the forward spread of those that are not captured. Upwards of 80% blockage has 
been achieved in human experiments that have measured blocking of all respiratory 
droplets, with cloth masks in some studies performing on par with surgical masks as 
barriers for source control” (CDC, May 7, 2021).  Thus, the construction of the face 
covering is a significant factor in determining its efficacy at reducing COVID-19 
transmission.
While face coverings are generally effective as source control, because of the 
potential variations in protective properties, OSHA has not considered face coverings that 
are not certified to a consensus standard to be personal protective equipment (PPE) under 
OSHA’s general PPE standard (29 CFR 1910.132), as there is insufficient assurance that 
any given face covering is of safe design and construction for the work to be performed, 
which is required by the PPE standard. Despite these limitations, many of the available 
face coverings have proven to be effective at providing source control, and where a face 
covering is also effective in providing personal protection, the wearer will be at reduced 
risk of, and could be protected from, infection.  Accordingly, over the course of the 
pandemic, through its guidance, OSHA has strongly encouraged workers to wear face 
coverings when they are in close contact with others to reduce the risk of spreading 
COVID-19 despite the shortcomings that have prevented the agency from considering 
them to be PPE that complies with the requirement of the PPE standard.  To enhance the 
effectiveness of any face covering required by this standard, this ETS imposes certain 
minimum design criteria, consistent with CDC recommendations. Thus, the face covering 

must consist of at least two layers of material that is either tightly woven or non-woven, 
and the face covering must not have visible holes or openings.  CDC has found face 
coverings that are tightly woven and made with at least two layers are more effective at 
filtering droplets than face coverings that are loosely woven or consist of a single layer of 
fabric (CDC, May 7, 2021; Ueki et al., June 25, 2020).
OSHA’s determination on the importance of face coverings is supported by a 
substantial body of evidence. As described in further detail below, consistent and correct 
use of face coverings is widely recognized and scientifically supported as an important 
evidence-based strategy for COVID-19 control. Accordingly, with specific exceptions 
relevant to outdoor areas and vaccinated persons, the CDC recommends everyone two 
years of age and older wear a face covering in public settings and when around people 
outside of their household (CDC, August 13, 2021). And, on January 21, 2021, President 
Biden issued Executive Order 13998, which recognizes the use of face coverings or 
facemasks as a necessary, science-based public health measure to prevent the spread of 
COVID-19, and therefore directed regulatory action to require that they be worn in 
compliance with CDC guidance while traveling on public transportation (e.g., buses, 
trains, subway) and while at airports (Executive Order 13998, 86 FR 7205, 7205 (Jan. 21, 
2021); CDC, February 2, 2021). Similarly, the World Health Organization (WHO) has 
recognized face coverings as a key measure in suppressing COVID-19 transmission, and 
thus, saving lives. The WHO observes that face coverings serve two purposes, to both 
protect healthy people from acquiring COVID-19 and to prevent sick people from further 
spreading it. Since December of 2020, the WHO has recommended that the general 
public wear face coverings in indoor settings and in outdoor settings where physical 
distancing cannot be maintained (WHO, December 1, 2020). 
In the United States, several states have imposed statewide face covering 
mandates in order to mitigate the spread of COVID-19. One study examined data on 

statewide face covering mandates during March 1–October 22, 2020, and found that 
statewide face covering mandates were associated with a decline in weekly COVID-19–
associated hospitalization growth rates by up to 5.6 percentage points for adults aged 18–
64 years after mandate implementation, compared with growth rates during the 4 weeks 
preceding implementation of the mandate (Joo et al., February 12, 2021). Similarly, 
another study examined the association of state-issued face covering mandates with 
COVID-19 cases and deaths during March 1–December 31, 2020, and found mandating 
face coverings was associated with a decrease in daily COVID-19 case and death growth 
rates within 20 days of implementation (Guy et al., March 12, 2021).
School face covering policies for students, staff members, faculty, and visitors are 
associated with a reduction in COVID-19 outbreaks. Between July 15 and August 31, 
2021, schools in Arizona were analyzed for school mask policies, which provided that all 
persons, regardless of vaccination status, were required to wear a mask indoors. The odds 
of a school-associated COVID-19 outbreak in schools without a mask requirement were 
3.5 times higher than those in schools with an early mask requirement (Odds Ratio = 3.5; 
95% Confidence Interval = 1.8–6.9) (Jehn et al., October 1, 2021). 
The effectiveness of face coverings in limiting the emission and spread of droplets 
has also been demonstrated in numerous studies. For example, multiple studies in which 
droplets were visualized while individuals were talking or a manikin was used to simulate 
coughs and sneezes demonstrated that two-layer face coverings limited the number of 
droplets released into the air, and limited the forward spread of those not captured 
(Fischer et al., September 2, 2020; Verma et al., June 30, 2020; CDC, May 7, 2021). 
The effectiveness of face coverings in preventing infections was also observed in 
a number of epidemiological studies. For example, in June of 2020 an outbreak was 
studied aboard the USS Theodore Roosevelt, an environment notable for congregate 
living quarters, close working environments, and a sample of mostly young, healthy 

adults. The investigation found that use of face coverings on board was associated with a 
70% reduced risk of transmission, which demonstrates that the use of face coverings, 
especially among asymptomatic cases, can help mitigate future transmission (Payne et al., 
June 12, 2020). Another publication, released in July of 2020, included an investigation 
of a high-exposure event among 139 clients exposed to two symptomatic hair stylists 
with confirmed cases of COVID-19. Both of the stylists and all of their clients wore face 
coverings during their interactions. Among 67 clients subsequently tested for COVID-19, 
all test results were negative; no symptomatic secondary cases were reported by any 
clients, including those who were not tested. The study concluded that the strict use of 
face coverings likely mitigated the spread of COVID-19 (Hendrix et al., July 17, 2020). 
Several other observational epidemiological studies have reviewed data regarding 
the “real-world” effectiveness of face covering usage. First, in a study of 124 Beijing 
households with one or more laboratory-confirmed case of COVID-19, face covering use 
by both the index patient and all family contacts before the index patient developed 
symptoms reduced secondary transmission (i.e., infections occurring within two weeks of 
symptom onset in the index case) within the households by 79% (Wang et al., May 11, 
2020). Second, a retrospective case-control study from Thailand documented that, among 
more than 1,000 persons interviewed as part of contact tracing investigations, those who 
reported having always worn a face covering during high-risk exposures experienced a 
greater than 70% reduced risk of infection compared with persons who did not wear face 
coverings under these circumstances. The risk for infection was not significantly lower in 
those who reported only sometimes wearing face coverings compared to those who did 
not wear face coverings at all. This evidence supports the conclusion that face coverings 
must be worn consistently and correctly to meaningfully reduce the risk of infection 
(Doung-ngern et al., September 14, 2020). 

Community-level analyses have also confirmed the benefit of universal face 
covering use in: a unified hospital system (Wang et al., July 14, 2020); a German city 
(Mitze et al., June 1, 2020); a U.S. state (Gallaway et al., October 6, 2020); a panel of 15 
U.S. states and Washington, D.C. (Lyu and Wehby, June 16, 2020; Hatzius et al., June 
29, 2020); as well as both Canada (Karaivanov et al., October 1, 2020) and the U.S. 
(Chernozhukov et al., September 15, 2020) nationally. Each community analysis 
demonstrated that, following universal face covering directives from both organizational 
and political leadership, new infections were shown to fall significantly. These analyses 
have also shown reductions in mortality and the need for lockdowns, with their associated 
monetary/gross domestic product losses (Leffler et al., December 2, 2020; Hatzius et al., 
June 29, 2020). Additionally, multiple investigations involving infected passengers 
aboard flights longer than ten hours strongly suggest that face covering usage prevented 
in-flight transmissions, as demonstrated by the absence of infection developing in other 
passengers and crew in the 14 days following exposure (Schwartz et al., April 14, 2020; 
Freedman and Wilder-Smith, September 25, 2020).
Researchers from the COVID-19 Systematic Urgent Review Group Effort 
investigated the effects of face coverings and eye protection on virus transmission in both 
healthcare and non-healthcare settings. They identified 172 observational studies for their 
systematic review and 44 comparative studies for their meta-analysis, including data on 
25,697 COVID-19, SARS, or MERS patients. They concluded for the general public, 
based mainly on evidence from face covering use within households and among contacts 
of cases, that disposable surgical masks or face coverings (reusable multi-layer cotton 
face coverings) are associated with protection from viral transmission. Through the meta-
analysis, combining 39 of the studies’ results, they found a 14.3% reduction in the 
difference of anticipated absolute effect (e.g., the chance of viral infection or 

transmission) between no face covering and face covering groups (Chu et al., June 27, 
2020).
Ueki et al. (June 25, 2020) evaluated the effectiveness of cotton face coverings, 
facemasks, and N95s (a commonly used respirator) in preventing transmission of SARS-
CoV-2 using a laboratory experimental setting with manikins. The researchers found that 
all offerings provided some measure of protection as source control, limiting droplets 
expelled from both infected and uninfected wearers. For instance, when spaced roughly 
20 inches apart, an uninfected person can reduce inhalation of infectious virus by 37% by 
wearing a cotton face covering. If only the infected person wears a cotton face covering, 
the amount breathed in by the uninfected recipient is reduced by 57%. However, if both 
individuals wear a cotton face covering, the exposure is reduced 67%. If both are wearing 
facemasks, exposure is reduced by 76%. When an infected individual wore an N95 
respirator, exposure was reduced by 96% or, when the seams were taped, 99.7%.
As demonstrated by the studies above, proper face covering usage leads to a 
substantial reduction in the emission of virus-containing droplets and consequent 
transmission of the virus. This is especially critical for asymptomatic or pre-symptomatic 
infected wearers who feel well and may not be taking other preventative measures—like 
self-isolation—because they are unaware of their infectiousness to others. Combined, 
these individuals are estimated to account for more than 50% of COVID-19 transmissions 
(Honein et al., December 11, 2020; Moghadas et al., July 6, 2020; Johansson et al., 
January 7, 2021). This figure could be substantially reduced if face coverings are 
required, even for individuals who do not feel sick. Face covering use is also especially 
important in indoor spaces (Honein et al., December 11, 2020). The studies reviewed 
above show that face coverings reduce the release of droplets but do not completely 
eliminate them. CDC guidance affirms that COVID-19 pandemic control requires face 
covering use (Honein et al., December 11, 2020; CDC, May 7, 2021). Similarly, the 

WHO advises face covering use as a critical measure of a comprehensive package of 
prevention and control measures to limit the spread of COVID-19 (WHO, December 1, 
2020).
Although increasing COVID-19 vaccination coverage remains the most effective 
means to achieve control of the pandemic, additional layered prevention strategies will be 
needed in the short term to minimize preventable morbidity and mortality among 
unvaccinated individuals. Unvaccinated individuals remain at substantial risk for 
infection, severe illness, and death, especially in areas where the level of SARS-CoV-2 
community transmission is high (discussed in detail in Grave Danger (Section III.A. of 
this preamble)). Among strategies to prevent COVID-19, CDC recommends all 
unvaccinated individuals wear face coverings in public indoor settings. A proven 
effective strategy against SARS-CoV-2 transmission, beyond vaccination, includes using 
face coverings consistently and correctly (Christie et al., July 30, 2021). 
The agency is not requiring the use of face coverings by workers who are fully 
vaccinated because vaccination is sufficient to reduce the grave danger to themselves or 
others. While vaccination is sufficient to reduce grave danger to the workers themselves, 
the agency recognizes that there may still be residual risk (e.g., breakthrough infections); 
severe health outcomes among vaccinated workers, however, are unlikely. Vaccination is 
also sufficient to reduce the grave danger that fully vaccinated workers present to others 
given the reduced likelihood of transmission (see Grave Danger in Section III.A. of this 
preamble). Nonetheless, the use of face coverings by fully vaccinated workers, while not 
required by this ETS, is strongly encouraged in a wide range of circumstances to reduce 
the overall risk of transmitting COVID-19, particularly in areas of substantial or high 
transmission, when indoors and when in crowded outdoor areas.  The use of face 
coverings by customers and visitors to workplaces is also beneficial in reducing the 
overall risk of workplace transmission of COVID-19.   

OSHA has always considered recognized consensus standards, with design and 
construction specifications, when determining the PPE requirements of the agency’s 
standards. The OSH Act (29 U.S.C. 655(b)(8)) requires the agency to generally give 
deference to consensus standards unless setting its own specifications would better 
effectuate the purposes of the Act. The agency’s standards generally require PPE to 
conform to the specifications in consensus standards through incorporation by reference 
(e.g., eye and face protection, head protection, foot protection). ASTM released a 
specification standard on February 15, 2021, to establish a national standard baseline for 
barrier face coverings (ASTM F3502-21). OSHA considered, as required, incorporation 
of ASTM F3502-21 in this ETS. However, the agency has determined that it is infeasible 
for the timeframe of this ETS to incorporate this consensus standard or to otherwise 
establish additional criteria for face coverings beyond that already recommended by the 
CDC due to the time needed to manufacture and distribute any new product. OSHA notes 
the CDC’s guidance on types of masks, including those that meet ASTM F3502-21 
requirements, and respirators as helpful to employers and workers in selecting an 
appropriate product (CDC, September 23, 2021). 
Relatedly, OSHA has previously established that medical facemasks are essential 
PPE for workers in healthcare and associated industries, and are already used by workers 
under both the general PPE standard (29 CFR 1910.132), and more specifically, the 
Bloodborne Pathogens standard (29 CFR 1910.1030). Facemasks are intended for a 
medical purpose, such as prevention of infectious disease transmission (including uses 
related to COVID-19). Facemasks can function as a barrier to protect the wearer from 
hazards such as splashes or large droplets of blood and bodily fluids. Facemasks, such as 
surgical masks, must be FDA-cleared or authorized by FDA, including  under an EUA 
and provide a similar or greater level of protection when serving the purposes of a face 

covering. Respirators are another type of personal protective device that OSHA has 
regulated under the Respiratory Protection standard (29 CFR 1910.134).
The best available experimental and epidemiological data support consistent use 
of face coverings by unvaccinated workers in work settings to reduce the spread of 
COVID-19 through droplet transmission. As discussed in Need for the ETS (Section 
III.B. of this preamble), adopting face covering policies is necessary, as part of a strategy 
combined with testing, to protect employees from exposure to COVID-19. Requiring 
unvaccinated workers to wear face coverings in the workplace will reduce the likelihood 
that, in conjunction with the testing (paragraph (g)) and removal, of infected workers, 
(paragraph (h)) requirements, they will spread the virus to others, including other 
unvaccinated coworkers. Based on the proven effectiveness of face covering use, 
OSHA’s COVID-19 ETS includes necessary provisions for required use of face 
coverings by unvaccinated workers and provisions to allow vaccinated workers and 
customers and visitors to wear face coverings or respirators as a component of reducing 
the overall risk of COVID-19 transmission in the workplace. 
The benefits that result from the use of face coverings for preventing transmission 
of COVID-19 are derived from the combination of source control (i.e., reducing the 
spread of large respiratory droplets to others by covering an infected person’s mouth and 
nose) and some personal protection for the wearer, as was discussed above in the Need 
for Face Coverings section. Face coverings are a vital layer of protection, and the benefit 
to any given individual increases with increasing community use. Paragraph (i) contains 
requirements for the use of face coverings by each employee who is not fully vaccinated, 
as well as alternatives to face coverings (e.g., facemasks, respirators) that may be 
acceptable in some situations (described in detail below). As defined in paragraph (c), a 
face covering means a covering that completely covers the nose and mouth of the wearer, 
excluding face shields, which is made with two or more layers of a breathable fabric that 

is tightly woven, is secured to the wearer’s head with ties, ear loops, or elastic bands that 
go behind the head, and is a solid piece of material without slits, exhalation valves, 
visible holes, or other openings in the material. This definition encompasses face 
coverings that otherwise meet the definition of face covering under paragraph (c), but 
include clear plastic windows, such as those utilized by persons communicating with 
those who are deaf or hard-of-hearing or when seeing a person’s mouth is otherwise 
important. Face coverings can be manufactured or homemade, and they can incorporate a 
variety of designs, structures, and materials. Face coverings can be disposable or 
reusable. Face coverings do not have to meet a consensus standard, although they might. 
Apart from any applicable FDA or NIOSH regulatory requirements that might otherwise 
apply, such requirements are not required solely for the purposes of meeting the 
requirements of this standard.
As a general rule, OSHA has authority to, and does, require employers to bear the 
costs for protective equipment, among other worker protections, required by an OSHA 
standard. See, e.g., 29 CFR 1910.1018(j) (requiring the employer to provide protective 
clothing at no cost to the employee). However, in limited circumstances, OSHA has 
chosen not to require employers to pay for some forms of non-specialized protective 
equipment, such as every-day clothing, products providing weather-related protection, 
and non-specialized equipment that the employee wears off the job site. See 29 CFR 
1910.132(h)(2)-(5).  Like the analogous situations listed above, here employees may use 
their personal face coverings in a variety of circumstances on and off the job site as part 
of their every-day protection. Because the types of face coverings permitted under this 
ETS are widely used and readily available, (see Technological Feasibility (Section IV.A. 
of this preamble)), employees will have no difficulty obtaining them. OSHA is requiring 
employers to bear the costs for employee vaccination, because it is the more protective 
control, (Need for the ETS (Section III.B. of this preamble).  OSHA does not believe it 

appropriate to impose the costs of personal face coverings on an employer where an 
employee has made an individual choice to pursue a less protective option. For these 
reasons, OSHA has determined not to impose the costs of face coverings on the employer 
as a requirement under this ETS.
Paragraph (i)(1) requires employers to ensure that each employee who is not fully 
vaccinated wears a face covering when indoors or when occupying a vehicle with another 
person for work purposes, except (i) when an employee is alone in a room with floor to 
ceilings windows and a closed door. However, if that employee exits the room or another 
individual enters the room, they are required to wear a face covering. The second 
exception is (ii) for a limited time while an employee is eating or drinking at the 
workplace or for identification purposes in compliance with safety and security 
requirements. Under this exception, employees are not required to wear face coverings 
during the limited time while eating or drinking at the workplace. Employers may also let 
employees eat or drink outside where there may be more space and reduced risk of 
transmission. Additionally, under the exception in paragraph (i)(1)(ii), employees are not 
required to wear a face covering for a limited time for identification purposes  in 
compliance with safety and security requirements. This means that an unvaccinated 
employee can temporarily remove their face covering when at a security checkpoint 
within their worksite and when identification is otherwise required. 
Another exception for required face coverings is under paragraph (i)(1)(iii) for 
when an employee is wearing a respirator or facemask in accordance with other OSHA 
standards (e.g., 1910.134, 1910.504, 1910.1030, 1910.502). Facemask or respirator use in 
accordance with other OSHA standards takes precedence over face covering use in this 
ETS. For example, OSHA standard 1910.1030 has requirements for facemasks in 
healthcare settings and requires that workers should continue to use the required 
facemask appropriate for that setting. Another example may include a worker who is 

required to use a respirator under 1910.134 for workplace exposure to harmful dusts, 
where effective engineering controls are not feasible; that worker should continue to use 
the required respirator. Employees must resume wearing a face covering when not 
engaged in the activity where a facemask or respirator is required as an essential part of 
their job. The last exception, contained in paragraph (i)(1)(iv), is for a very limited set of 
circumstances where employers can show that the use of the face covering is infeasible or 
creates a greater hazard. Situations where it is important to see an employee’s mouth for 
reasons related to their job duties, or their job requires the use of their uncovered mouth, 
or when the use of a face covering presents a risk of serious injury or death to the 
employee, would also be covered under this provision. As has been previously discussed 
in Summary and Explanation for paragraph (d) (Section VI.D. of this preamble), OSHA 
recognizes that there may be certain workers who may not be able to wear a face 
covering due to a disability or sincerely held religious belief and are entitled to an 
accommodation.  
If employers receive accommodation requests relating to face coverings or other 
protective gear, for example due to disability or religious garb or grooming, they should 
evaluate those requests under applicable laws (EEOC, October 25, 2021).
Paragraph (i)(2) requires that employers ensure that any face covering required to 
be worn by this section is: (i) worn by the employee to fully cover the employee’s nose 
and mouth; and (ii) replaced when wet, soiled, or damaged (e.g., is ripped, has holes, or 
has broken ear loops). To be worn properly, face coverings must completely cover the 
wearer’s mouth and nose and must fit snugly against the sides of the face without gaps. 
Gaps can let air with respiratory droplets leak in and out around the edges of the mask. 
Face coverings with a nose wire help to avoid issues with glasses fogging and create a 
snug fit. Workers can also use a mask fitter or brace over a disposable mask or a cloth 
mask to prevent air from leaking around the edges of the mask. To ensure face coverings 

are worn properly, an employer might appoint a manager or senior employee to check 
that each unvaccinated employee is properly wearing a face covering at the start of and 
throughout each shift. Many aspects of proper mask use are easily observable (e.g., 
covering the mouth and nose, as well as no observable gaps). Additionally, employers 
may consider utilizing workplace announcements (e-mail messages, safety talks, etc.) or 
displaying signs or posters throughout the facility about proper face covering usage. 
The employer must ensure that employees replace face coverings when wet, 
soiled, or damaged (paragraph (i)(2)(ii)). Face coverings can become soiled by splashes, 
sprays, or splatters, from contact with a contaminated surface, or by touching/adjusting 
them with contaminated hands. Damaged face coverings may not fit properly and thus 
will have reduced effectiveness. Employees who work where there is potential for spills, 
sprays, or splashes may need to change or replace their face coverings more frequently 
(e.g., in food, meat, or poultry processing plants; water, sanitation, or wastewater 
treatment facilities; or restaurants). As note 1 to paragraph (i) addresses, face shields may 
be worn in addition to face coverings to prevent them from getting wet and soiled. For 
work where face coverings are expected to become dirty or soiled less frequently, 
employees may only need to replace their face coverings daily (e.g., in retail or office 
buildings). Regardless of work location, reusable face coverings can become soiled after 
each use and may be contaminated with bacteria and viruses, including the virus that 
causes COVID-19. To ensure performance and minimize the risk of contaminating 
employees after contact with a soiled face covering, as described previously, the CDC 
recommends washing them whenever they get dirty, but at least once a day. The CDC 
also has guidance on the selection, proper wearing, cleaning, and storage of face 
coverings (CDC, August 13, 2021). 
The employer must not prevent any employee, regardless of vaccination status, 
from voluntarily wearing a face covering or facemask unless the employer can 

demonstrate that doing so would create a hazard (paragraph (i)(3)). While vaccination 
greatly reduces the risk of the most severe consequences of COVID-19 (e.g. 
hospitalizations and fatalities) to workers, it does not reduce the risk to zero and thus 
workers must be permitted to wear face coverings or facemasks even when not required 
to in order to allow the workers to further address residual risk. The agency has 
determined this provision is necessary because employees may themselves have 
additional medical risk factors that employers may or may not be aware of, and which 
require enhanced precautions. Similarly, employees may live with or have frequent 
contact with family members or others who have enhanced risk if infected with COVID-
19 and thus justify assuring the employees’ ability to take reasonable precautions to 
protect their own health and safety or that of loved ones. 
Paragraph (i)(4) states that the employer must permit the employee to wear a 
respirator instead of a face covering whether required or not (i.e., without regard to 
vaccination status), and the employer may provide respirators to the employee, even if 
not required. This means that when a face covering is not required by paragraph (i)(1), 
the employer must permit the employee to wear a respirator or the employer may even 
provide a respirator; in such circumstances, the employer must also comply with 
1910.504 (the mini respiratory protection program). Respirators, as defined in paragraph 
(c), are a type of PPE that are certified by NIOSH or authorized under an Emergency Use 
Authorization (EUA) by the FDA, and protect against airborne hazards by removing 
specific air contaminants from the ambient (surrounding) air or by supplying breathable 
air from a safe source. Respirator use can provide an additional level of comfort and 
protection beyond that provided by face coverings for employees in circumstances that do 
not require a respirator to be used. As discussed previously, the agency has determined 
that workers need the ability to wear PPE, even when it is not required, in order to 
address residual risk and due to health conditions that either they or their close contacts 

may have that warrant enhanced precautions. For a more in-depth description of the mini 
respiratory protection program, see the preamble to the Healthcare ETS (86 FR 32615-
32617).  OSHA intends the mini respirator protection program to be preserved for the 
duration of this ETS, and any references relied upon by OSHA in those sections of the 
Healthcare ETS are also incorporated explicitly into the rulemaking docket for this ETS.
The mini respiratory protection program is designed to strengthen employee 
protections with a small set of provisions for the safe use of respirators designed to be 
easier and faster to implement than the more comprehensive respiratory protection 
program under 29 CFR 1910.134. This ETS is addressing an emergency health crisis, so 
it is critical for employers to be able to get more employee protection in place quickly. 
OSHA expects that this approach will facilitate additional employee choice for the 
additional protection provided by respirators while reducing disincentives that may have 
discouraged employers from allowing or voluntarily providing respirators. A mini 
respirator program is therefore an important control to protect employees from the hazard 
posed by COVID–19. 
The mini respiratory protection program is primarily intended to be used for 
addressing circumstances where employees are not exposed to suspected or confirmed 
sources of COVID–19, but where respirator use could offer enhanced protection to 
employees. Examples include when a respirator could offer enhanced protection in 
circumstances where a less protective (in terms of filtering and fit) face covering is 
required under the ETS (See 29 CFR 1910.501(i)(1)). The decision to use a respirator in 
place of a face covering could be due to the higher filter efficiency and better sealing 
characteristics of respirators when compared to face coverings. For additional discussion, 
the rationale for the mini respiratory protection program was addressed in detail in Need 
for Specific Provisions in the agency’s prior rulemaking on 1910.504, and the 

requirements of the mini respiratory protection program section are discussed in 
Summary and Explanation in the agency’s prior rulemaking on 1910.504.
As required by paragraph (i)(5), the employers must not prohibit customers or 
visitors from wearing face coverings. Face coverings are a vital layer of protection 
against the risk of COVID-19.  (See the discussion earlier in this section on the benefits 
to individuals associated with increased community use.) This provision is necessary 
because increased use of face coverings also reduces the overall risk of COVID-19 
transmission from the customers and visitors to workers, both unvaccinated and 
vaccinated alike. Additionally, it allows customers and visitors to protect their own health 
and safety. Employers may even want to create a policy encouraging the use of face 
coverings by anyone who enters the business; they are encouraged to coordinate with 
state and local health officials to obtain and respond appropriately to timely and accurate 
information (e.g., level of community transmission, health system capacity, vaccination 
coverage, capacity for early detection of increases in COVID-19 cases, and populations at 
risk for severe outcomes from COVID-19). Local conditions will influence the decisions 
that public health officials make regarding community-level strategies.  Additionally, 
workers and their representatives may also negotiate additional face covering measures 
not required by the ETS through collective bargaining agreements or other collectively 
negotiated agreements.  
Lastly, for the reasons explained above, note 2 to paragraph (i) clarifies that this 
section does not require the employer to pay for any costs associated with face coverings. 
However, the note also makes clear that this section does not prohibit the employer from 
paying for costs associated with face coverings required by this section. OSHA notes that 
employer payment for face coverings may be required by other laws, regulations, or 
collective bargaining agreements or other collectively negotiated agreements.  
Additionally, workers and their representatives may also negotiate employer payment for 

face coverings not required by the ETS through collective bargaining agreements or other 
collectively negotiated agreements.  
References:  
Brooks J et al. (2021, February 10). Maximizing fit for cloth and medical procedure 
masks to improve performance and reduce SARS-CoV-2 transmission and exposure. 
MMWR. doi:http://dx.doi.org/10.15585/mmwr.mm7007e1. (Brooks et al., February 10, 
2021) 
 
Centers for Disease Control and Prevention (CDC). (2021, February 2). Order under 
Section 361 of the Public Health Service Act (42 U.S.C. 264) and 42 Code of Federal 
Regulations 70.2, 71.31(b), 71.32(b). Federal register notice: wearing of face masks 
while on conveyances and at transportation hubs. 
https://www.cdc.gov/quarantine/masks/mask-travel-guidance.html. (CDC, February 2, 
2021) 
Centers for Disease Control and Prevention (CDC). (2021, May 7). Scientific brief: 
Community Use of Cloth Masks to Control the Spread of SARS-CoV-2.  
https://www.cdc.gov/coronavirus/2019-ncov/more/masking-science-sars-cov2.html. 
(CDC, May 7, 2021) 
Centers for Disease Control and Prevention (CDC). (2021, July 14). How COVID-19 
spreads. https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-covid-
spreads.html. (CDC, July 14, 2021) 
 
Centers for Disease Control and Prevention (CDC). (2021, August 13). Your Guide to 
Masks. https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/about-face-
coverings.html. (CDC, August 13, 2021) 
Centers for Disease Control and Prevention (CDC). (2021, September 23). Types of 
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J. Information Provided to Employees 
In order to successfully implement the provisions of the ETS, it is critical that 
employers provide relevant information to employees. Employers must provide 
employees with the information specified in paragraph (j), an essential part of this ETS, 
because it helps to ensure that employees understand both their rights and responsibilities 
under the ETS and their employer’s policies and procedures. The ETS cannot be effective 
if employees do not have sufficient knowledge and understanding of the requirements of 
the ETS, their employers’ policies and procedures, information about available COVID-
19 vaccines, their protections against retaliation and discrimination, and the potential 
penalties for knowingly providing false information to their employer. 
Paragraph (j) provides that employers must provide the required information to 
each employee in a language and at a literacy level the employee understands. This 
means that if an employer has employees that speak different languages or are at different 
literacy levels, the employer must present information in a way that ensures each 
employee can understand it. This may require an employer to create different materials 
for different groups of employees (e.g., materials in different languages). When 
information must be translated into different languages, employers must ensure the 
translation is one the employees can understand. When an employer provides employees 

with the required information in a manner employees understand, they help ensure that 
their implementation of this ETS is successful. 
The manner in which employers provide the required information to employees 
may vary based on the size and type of workplace. Employers have flexibility to 
communicate this information to employees using any effective methods that are 
typically used in their workplaces, and may choose any method of informing employees 
so long as each employee receives the information specified in the standard in a language 
and at a literacy level they understand. For example, an employer may provide this 
information to employees through email communications, printed fact sheets, or during a 
discussion at a regularly scheduled team meeting. To ensure comprehension of the 
information provided, employers can identify a point-of-contact for employees who have 
questions about the information provided.  
Paragraphs (j)(1)-(4) specify the information that employers must provide to 
employees. Paragraph (j)(1) requires employers to provide each employee with 
information regarding the requirements of § 1910.501 and any policies and procedures 
the employer establishes to implement this ETS. The information provided to employees 
must cover any employer policies under paragraph (d), including the details of the 
employer’s vaccination policy. Employers must also inform employees about the process 
that will be used to determine employee vaccination status, as required under paragraph 
(e). In addition, employers must inform employees about the time and pay/leave they are 
entitled to for vaccinations and any side effects experienced following vaccinations, as 
required by paragraph (f). And employers must also inform employees about the 
procedures they need to follow to provide notice of a positive COVID-19 test or 
diagnosis of COVID-19 by a licensed healthcare provider, as required under paragraph 
(h), as well as the procedures to be used for requesting records under paragraph (l). 
Employers must provide additional information to unvaccinated employees, including 

information about the employer’s policies and procedures for COVID-19 testing and face 
coverings, as required by paragraphs (g) and (i), respectively. 
Some employers may have informed employees about their COVID-related 
workplace-specific policies, e.g., policies on vaccination, testing, and face coverings, 
prior to the effective date of this ETS. Employers may rely on any such prior 
communications for purposes of complying with paragraph (j)(1) to the extent that the 
prior communications meet the relevant requirements of paragraph (j) and there have 
been no changes to the relevant policies. Employers must review and evaluate the 
information already provided to determine whether it covers all of the information 
necessary under paragraph (j)(1). If previous information provided to employees did not 
cover all of the required elements, the employer must provide employees the information 
on those missing elements to come into compliance with the ETS. For example, if an 
employer has a mandatory vaccination policy and has already provided information to the 
employees on the policies and procedures the employer has established to implement that 
policy, and provided that information in a language and at a literacy level each employee 
can understand, the employer would not need to expend resources to provide that 
information again to meet the requirements under this ETS. However, the employer 
would still need to provide information to its employees about other new policies and 
procedures established to implement the ETS.  
When an employer’s policies or procedures change, the employer must provide 
any updated or supplemental information to employees. For example, an employer may 
initially opt to allow only paper copies as proof of COVID-19 test results. Over time, 
however, the employer may decide that it wants to accept electronic proof of test results. 
If that employer modifies its policy to permit employees to submit electronic proof of test 
results, the employer must inform employees of any new or altered policies and 
procedures that the employer implements as a result. 

Paragraph (j)(2) requires employers to provide information to each employee 
about COVID-19 vaccine efficacy, safety, and the benefits of being vaccinated. To meet 
this requirement, employers must provide the CDC’s document, “Key Things to Know 
About COVID-19 Vaccines,” available at https://www.cdc.gov/coronavirus/2019-
ncov/vaccines/keythingstoknow.html (CDC,October 7, 2021), to each employee. The 
employer may choose to provide this information to employees in either an electronic or 
print format. The CDC currently provides this document in multiple languages; however, 
employers may need to provide additional translations if necessary to inform each 
employee of the contents of the document in a language they understand. Employers do 
not have any further obligations to create or provide information on vaccine efficacy, 
safety, or the benefits of being vaccinated beyond providing the aforementioned CDC 
document to each employee.
Paragraph (j)(3) requires employers to inform each employee about the 
requirements of 29 CFR 1904.35(b)(1)(iv) and section 11(c) of the OSH Act. These two 
provisions work together to protect employees from retaliation for engaging in activities 
protected by OSHA statute or regulation. The first of these provisions, section 
1904.35(b)(1)(iv), prohibits employers from discharging or in any manner discriminating 
against any employee for reporting a work-related injury or illness. The second provision, 
section 11(c) of the OSH Act, prohibits employers from discriminating against employees 
for exercising rights under, or as a result of actions required by, the ETS.  Section 11(c) 
also protects employees from retaliation for filing an occupational safety or health 
complaint, reporting a work-related injury or illness, or otherwise exercising any rights 
afforded by the OSH Act. 
Retaliation takes many forms; it occurs when an employer (through a manager, 
supervisor, or administrator) fires an employee or takes any other type of adverse 
employment action against an employee for engaging in a protected activity. Adverse 

employment actions include discipline, reducing pay or hours, reassignment to a less 
desirable position, denying overtime or promotion, intimidation or harassment, and any 
other action that would dissuade a reasonable employee from raising a concern about a 
possible violation or engaging in other protected activity (see Burlington Northern & 
Santa Fe Railway Co. v. White, 548 U.S. 53, 57 (2006) holding, in the Title VII context, 
that the test for determining whether a particular employment action is materially adverse 
is whether it “could well dissuade” a reasonable person from engaging in protected 
activity).
The ETS does not change employers’ substantive obligations under either 29 CFR 
1904.35(b)(1)(iv) or section 11(c) of the OSH Act. Rather, it simply requires employers 
to make employees aware of these provisions and their requirements. By increasing 
awareness, OSHA believes that paragraph (j)(3) will prevent acts of retaliation from 
occurring in the workplace, encourage employees to exercise their right to the protections 
of the ETS, and engage employees in actions required by the ETS.
It is critically important for employees to be aware of, and to be able to exercise, 
their rights under the ETS. Employee participation is essential to mitigating the spread of 
COVID-19 in the workplace, and fear of retaliation would undermine the effectiveness of 
the ETS. For example, per paragraph (f) of this ETS, employers must provide employees 
up to 4 hours of paid time at the employee’s regular rate of pay for each vaccination dose, 
as well as reasonable time and paid sick leave for employees to recover from side effects 
experienced following any vaccination dose. If an employer fails to comply with 
paragraph (f) and then retaliates against employees who object, employees may be 
deterred from being vaccinated. Similarly, if employees fear retaliation, they will be less 
likely to voice concerns about unvaccinated co-workers who do not wear required face 
coverings (see paragraph (i)(1)). A workplace free from the threat of retaliation promotes 

collaboration between employers and employees and allows employers to more 
effectively implement the various requirements of this ETS.  
OSHA has received a record number of complaints of retaliation during the 
COVID-19 pandemic. The agency's website shows that, as of September 26, 2021, 
OSHA had received 5,788 complaints of retaliation related to workplace protections from 
COVID-19 (OSHA, September 29, 2021). These figures indicate that some employers 
need to be reminded that they are legally prohibited from engaging in retaliatory actions. 
Additionally, employees likely need reassurance of their legal right to engage in 
protected activity without fear of suffering from adverse employment actions. As such, it 
is critical for employers to inform employees of the prohibitions against retaliation in 29 
CFR 1904.35(b)(1)(iv) and section 11(c) after the effective date of the ETS, without 
regard to any information they may have provided previously on these anti-retaliation 
provisions. As with the other parts of paragraph (j), employers have flexibility regarding 
how they will provide the required information. 
Paragraph (j)(4) requires employers to provide each employee with information regarding 
the prohibitions of 18 U.S.C. 1001 and Section 17(g) of the OSH Act, which provide for 
criminal penalties associated with knowingly supplying false statements or 
documentation. The first of these two provisions, 18 U.S.C. 1001(a) is described earlier 
in this preamble and provides for fines or imprisonment for persons who “knowingly and 
willfully” (1) falsifies, conceals, or covers up by any trick, scheme, or device a material 
fact; (2) makes any materially false, fictitious, or fraudulent statement or representation; 
or (3) makes or uses any false writing or document knowing the same to contain any 
materially false, fictitious, or fraudulent statement or entry.  And section 17(g) of the 
OSH Act provides for fines up to $10,000, and imprisonment for not more than six 
months, or both, for anyone who “knowingly makes any false statement, representation, 
or certification” in any application, record, report, plan, or other document “filed or 

required to be maintained pursuant to this chapter.”  False statements or documents made 
or submitted for purposes of complying with policies required by this ETS could fall 
under either or both of these statutory provisions.
This ETS requires that each employee provide their employer either COVID-19 
vaccination documentation (paragraph (e)), or, if applicable, regular COVID-19 test 
results (paragraph (g)). There is a significant public health interest in ensuring employees 
provide this information truthfully to the employer. Employers cannot effectively 
implement the requirements of this ETS based on false information. By increasing 
awareness of the possible penalties an employee may face for misrepresenting their 
vaccination status or test results, OSHA intends to discourage such behavior.  Employers 
can satisfy the requirement of paragraph (j)(4) by providing each employee with the text 
of the two statutory provisions in hard copy or via electronic communication (e.g., e-
mail), translated as necessary into other languages, emphasizing the importance of 
providing truthful information about vaccine status and test results, and explaining that 
providing false information could be punishable under the two provisions. Employers are 
not required to provide further explanation of the statutory provisions or to provide legal 
advice.
Information requirements are routine components of OSHA standards. The 
inclusion of information requirements in this ETS reflects the agency's conviction, as 
noted above, that informed employees are essential to the implementation of any 
effective occupational safety and health policy or procedure. OSHA believes that 
informing employees about their rights and responsibilities under the ETS; the 
employer’s policies and procedures; and the safety, efficacy, and benefits of vaccination 
will help increase the number of employees vaccinated and will facilitate effective 
implementation of the standard by employers.
References: 

Centers for Disease Control and Prevention (CDC). (2021, October 7). Key Things to 
Know About COVID-19 Vaccines. https://www.cdc.gov/coronavirus/2019-
ncov/vaccines/keythingstoknow.html. (CDC, October 7, 2021). 
Occupational Safety and Health Administration (OSHA). (2021, September 29). COVID-
19 Response Summary: Summary Data for Federal Programs--
Whistleblower Data. https://www.whistleblowers.gov/covid-19-data. 
(OSHA, September 29, 2021).
K. Reporting COVID-19 Fatalities and Hospitalizations to OSHA
OSHA has required employers to report work-related fatalities and certain work-
related hospitalizations under its recordkeeping regulation since 1971. These 
requirements have been an important part of the agency’s statutory mission to assure safe 
and healthful working conditions for all working people. All employers covered by the 
OSH Act, including employers who are partially exempt from maintaining injury and 
illness records, are required to comply with OSHA reporting requirements at 29 CFR 
1904.39. Under OSHA’s current reporting regulation, employers are required to report 
each work-related fatality to OSHA within 8 hours of the event, and each work-related 
in-patient hospitalization, amputation, and loss of an eye within 24 hours of the event.   
The purpose of the reporting requirement in § 1904.39 is to provide OSHA with 
information to determine whether it is necessary for the agency to conduct an immediate 
investigation at a specific establishment. Employer reports of work-related COVID-19 
fatalities and in-patient hospitalizations are an important element of the agency’s efforts 
to reduce occupational exposure to the virus. After receiving an employer report, OSHA 
decides whether an inspection is needed to determine the cause of a work-related 
COVID-19 fatality or in-patient hospitalization, and whether any OSHA standards may 
have been violated. These reports are critical for the agency to respond quickly to 
COVID-19 exposure that may pose an ongoing risk to other employees at the worksite. 
Timely investigation also allows OSHA to view evidence at a workplace soon after a 
work-related COVID-19 fatality or in-patient hospitalization has occurred, and can make 
it easier for the agency to gather relevant information from others at the worksite that 

might be useful in protecting other employees. Moreover, prompt inspection enables 
OSHA to gather information to evaluate whether its current standards adequately 
address the workplace hazard presented from COVID-19. The information gathered from 
employer reports is also used by the agency to form the basis of statistical data on the 
causes and remediation of work-related COVID-19 fatalities and in-patient 
hospitalizations.   
In order to address the unique circumstances presented by COVID-19, and to 
facilitate OSHA investigation and better workplace health surveillance, paragraph (k)(1) 
requires covered employers to report each work-related COVID-19 fatality to OSHA 
within 8 hours of the employer learning about the fatality, and each work-related 
COVID-19 in-patient hospitalization to OSHA within 24 hours of the employer learning 
about the in-patient hospitalization. As described in more detail in the following 
discussion, OSHA is adding these additional COVID-19 reporting requirements because 
the delay in the manifestation and progression of symptoms of COVID-19 can lead to 
hospitalization or fatality outside the normal window for reporting those workplace 
events.      
Paragraph (k)(1)(i) provides that employers must report each work-related 
COVID-19 fatality to OSHA within 8 hours of the employer learning about the 
fatality. Under this paragraph, an employer must make a report to OSHA within 8 hours 
of learning both (1) that an employee has died from a confirmed case of COVID-19, and 
(2) that the cause of death was the result of a work-related exposure to COVID-19. 
Employers are only required to report confirmed cases of COVID-19 as defined by the 
Centers for Disease Control and Prevention (CDC) (CDC, May 20, 2020). Typically, the 
cause of death is determined by the physician who was responsible for a patient who died 
in a hospital, although the cause of death can also be determined by others such as 
medical examiners or coroners (Pappas, May 19, 2020).  

The requirement in paragraph (k)(1)(i) is similar to the fatality reporting 
requirement in OSHA’s regulation at 29 CFR 1904.39(a)(1), which requires an employer 
to report to OSHA within 8 hours after the death of any employee as the result of a work-
related incident. However, 29 CFR 1904.39(b)(6) requires employers to report a work-
related fatality to OSHA only if the fatality occurs within 30 days of “the work-related 
incident.” Prior to this ETS, for purposes of reporting events involving COVID-19, 
OSHA interpreted the phrase “the work-related incident” to mean “exposure” in the work 
environment. Therefore, in order to be reportable under 29 CFR 1904.39(a)(1), a work-
related fatality due to COVID-19 needed to have occurred within 30 days of an 
employee’s exposure in the work environment. Given the possibility of long-term illness 
before death, the 30-day limitation for reporting fatalities to OSHA could restrict 
OSHA’s ability to receive information about work-related COVID-19 fatalities.              
To address these issues, OSHA has chosen not to apply the 30-day limitation 
period from 29 CFR 1904.39(b)(6) to the reporting provision in paragraph (k) (see 
paragraph (k)(2)). Therefore, the requirement to report these fatalities is not limited by 
the length of time between workplace exposure and death. The reporting of work-related 
COVID-19 fatalities that occur beyond 30 days from the time of exposure will enable the 
agency to evaluate more work-related COVID-19 fatalities to determine whether 
immediate investigations are needed to prevent other employees at the same worksite 
from being exposed to the virus. The report of these fatalities to OSHA facilitates the 
agency’s timely tracking of this data. Accordingly, paragraph (k)(1)(i) requires employers 
to report each work-related COVID-19 fatality to OSHA within 8 hours of the employer 
learning about the fatality regardless of when the exposure in the work environment 
occurred.            
Paragraph (k)(1)(ii) of the standard requires an employer to report each work-
related COVID-19 in-patient hospitalization to OSHA within 24 hours of the employer 

learning about the in-patient hospitalization. Under this paragraph, and similar to 
OSHA’s reporting regulation at 29 CFR 1904.39, an employer must make a report to 
OSHA within 24 hours of learning that (1) an employee has been in-patient hospitalized 
due to a confirmed case of COVID-19, and (2) the reason for the hospitalization was the 
result of a work-related exposure to the illness. 
OSHA’s current reporting regulation at 29 CFR 1904.39(a)(2) provides that, 
within 24 hours after the in-patient hospitalization of one or more employees, as the 
result of a work-related incident, an employer must report the in-patient hospitalization to 
OSHA. 29 CFR 1904.39(b)(6) requires employers to only report in-patient 
hospitalizations to OSHA if the hospitalization occurs within 24 hours of the work-
related incident. For example, if an employee trips in the workplace and sustains an 
injury on Monday, but is not hospitalized until Thursday, the employer does not need to 
report the event. In this example, “the work-related incident” occurred on Monday when 
the employee tripped and was injured in the workplace. Also, under § 1904.39, 
employers must report in-patient hospitalizations to OSHA within 24 hours of knowing 
both that the employee has been in-patient hospitalized and that the reason for the 
hospitalization was the result of “the work-related incident” (see 29 CFR 1904.39(a)(2), 
(b)(7)-(b)(8)). In non-COVID cases, the work-relatedness of the injury is typically 
apparent immediately. 
Since the beginning of the pandemic, the reporting of work-related COVID-19 in-
patient hospitalizations under 29 CFR 1904.39 has presented unique challenges. As noted 
above, for purposes of reporting COVID-19 fatalities and in-patient hospitalizations, 
OSHA has interpreted the phrase “the work-related incident” in 29 CFR 1904.39(b)(6) to 
mean an employee’s “exposure” to COVID-19 in the work environment. Thus, in order 
to be reportable, an in-patient hospitalization needed to occur within 24 hours of an 
employee’s exposure to COVID-19 in the work environment. Given the incubation 

period of the virus, and the typical timeframe between exposure and the emergence of 
symptoms serious enough to require hospitalization, it is extremely unlikely for an in-
patient hospitalization to occur within 24 hours of an employee’s exposure to the virus.  
To address these issues, paragraph (k)(1)(ii) does not limit the COVID-19 
reporting requirement to only those hospitalizations that occur within 24 hours of 
exposure, as in 29 CFR 1904.39(b)(6). This change in the reporting requirement will 
result in OSHA making more determinations as to whether immediate investigations are 
needed at additional worksites. Given the severity of the disease, and how quickly it can 
spread, it is essential that remediation efforts at a workplace be undertaken immediately. 
As noted above, it is critical for OSHA to respond quickly to hazardous conditions where 
employees have been hospitalized. The elimination of the 24-hour limitation period will 
not only allow OSHA to receive more employer reports about work-related COVID-19 
in-patient hospitalizations and, as a result, shed light on where severe COVID-19 events 
are occurring, but it will also enable the agency to respond more quickly and effectively 
to these situations. Accordingly, employers must report each work-related COVID-19 in-
patient hospitalization to OSHA regardless of when the employee’s exposure in 
the workplace occurred (paragraph (k)(1)(ii)). But consistent with OSHA’s normal 
reporting requirements, when hospitalization for a work-related case of COVID-19 does 
occur, the employer must report it within 24 hours of learning about the hospitalization.  
Additionally, for purposes of this section, OSHA defines in-patient hospitalization 
as a formal admission to the in-patient services of a hospital or clinic for care or treatment 
(see 29 CFR 1904.39(b)(9) and (b)(10)). The determination as to whether an employee is 
formally admitted into the in-patient service is made by the hospital or clinic. Treatment 
in an Emergency Room only is not reportable.   
I. Work-Relatedness Determinations. 

Given the nature of the disease, and the extent of community spread, in some 
cases, it may be difficult for an employer to determine whether an employee’s COVID-19 
illness is work-related, especially when an employee has experienced potential exposure 
both in and out of the workplace. For purposes of this ETS, when evaluating whether a 
fatality or in-patient hospitalization is the result of a work-related case of COVID-19, 
employers must follow the criteria in OSHA’s recordkeeping regulation at 29 CFR 
1904.5 for determining work-relatedness. Applying the criteria in 29 CFR 1904.5 under 
paragraph (k) of this ETS is consistent with how employers make work-relatedness 
determinations when reporting fatalities and other serious events under 29 CFR 
1904.39.        
Under § 1904.5, employers must consider an injury or illness to be work-related if 
an event or exposure in the work environment either caused or contributed to the 
resulting condition, or significantly aggravated a pre-existing injury or illness. An injury 
or illness is presumed work-related if it results from events or exposures occurring in the 
work environment, unless an exception in § 1904.5(b)(2) specifically applies. Under this 
language, an injury or illness is presumed work-related if an event or exposure in the 
work environment is a discernable cause of the injury or illness (see 66 FR 66,943 
(December 27, 2001)).   
According to 29 CFR 1904.5(b)(3), the “work environment” includes the 
employer’s establishment and any other location where work is performed or where 
employees are present as a condition of their employment. Under 29 CFR 1904.5(b)(3), 
employers should evaluate the employee’s work duties and environment and determine 
whether it is more likely than not that exposure at work caused or contributed to the 
illness (see 66 FR 5958-59 (January 19, 2001)).  
Because of the typical incubation period of 3 to 14 days, an employee’s exposure 
to COVID-19 will usually be determined after the fact. Employers must make reasonable 

efforts to acquire the necessary information to make good-faith work-relatedness 
determinations under this section. In addition, the employer should rely on information 
that is reasonably available at the time of the fatality or in-patient hospitalization.   
A work-related exposure in the work environment would likely include close 
contact with a person known to be infected with COVID-19. For example, although 
work-relatedness must be determined on a case-by-case basis, if a number of COVID-19 
illnesses develop among coworkers who work closely together without an alternative 
explanation, it is reasonable to conclude that an employee’s fatality or in-patient 
hospitalization is work-related. On the other hand, if there is not a known exposure to 
COVID-19 that would trigger the presumption of work-relatedness, the employer must 
evaluate the employee’s work duties and environment to determine whether it is more 
likely than not that the employee was exposed to COVID-19 during the course of their 
employment. Employers should consider factors such as: 

The type, extent, and duration of contact the employee had at the work 
environment with other people, particularly the general public. 

Physical distancing and other controls that impact the likelihood of work-related 
exposure. 

The extent and duration of time spent in a shared indoor space with limited 
ventilation.  

Whether the employee had work-related contact with anyone who exhibited signs 
and symptoms of COVID-19.   
Since 1971, under OSHA’s recordkeeping system, employers have been making 
work-relatedness determinations regarding workplace fatalities, injuries, and illnesses. In 
general, employers are in the best position to obtain information, both from the employee 
and the workplace, necessary to make a work-relatedness determination. Although 

employers may rely on experts and healthcare professionals for guidance, the 
determination of work-relatedness ultimately rests with the employer. 
Finally, OSHA wishes to emphasize that, under OSHA’s recordkeeping 
regulation at 29 CFR 1904, employers must record on the OSHA 300 log each work-
related fatality, injury, and illness reported to OSHA under § 1904.39. The work-
relatedness determination for fatality and in-patient hospitalization is no different than the 
requirement to determine work-relatedness when entering fatalities, injuries and illness 
on the OSH 300 log. Accordingly, the work-relatedness determination for reporting 
COVID-19 fatalities and in-patient hospitalizations is a determination that is already 
required to be made by the employer.             
II. Time Periods for Reporting COVID-19 Fatalities and In-Patient Hospitalizations. 
As noted above, under paragraph (k), employers must report each work-related 
COVID-19 fatality or hospitalization to OSHA within the specified timeframes based on 
when any agent or employee of the employer becomes aware of the reportable event. For 
example, an employer “learns” of a COVID-19 fatality or in-patient hospitalization when 
a supervisor, receptionist, or other employee at the company receives information from a 
family member or medical professional about an employee fatality or in-patient 
hospitalization. It is the employer’s responsibility to ensure that appropriate instructions 
and procedures are in place so that managers, supervisors, medical personnel, as well as 
other employees or agents of the company, who learn of an employee’s death or in-
patient hospitalization due to COVID-19 know that the company must make a report to 
OSHA.  
Consistent with OSHA’s regulation at 29 CFR 1904.39, the reporting clock 
begins to run with the occurrence of the reportable event. Under paragraph (k), in 
situations where the employer or the employer’s agent does not learn about the work-
related COVID-19 fatality or in-patient hospitalization right away, the employer must 

make the report to OSHA within 8 hours for a fatality, or 24 hours for an in-patient 
hospitalization, from the time the employer (or the employer’s agent) learns about the 
reportable event. For example, if an employee dies from a work-related case of COVID-
19 on Sunday at 6:00 a.m., but the employer does not learn about the death until Monday 
at 8:00 a.m., the employer has until 4:00 p.m. that day to make the report to OSHA. 
Similarly, if an employee is in-patient hospitalized for a work-related case of COVID-19 
at 8:30 p.m. on Monday, but the employer or the employer’s agent(s) does not learn about 
the hospitalization until 9:00 a.m. the next day (Tuesday), then the employer would be 
required to make the report to OSHA within 24 hours of learning of the in-patient 
hospitalization (i.e., by 9:00 a.m. on Wednesday) (see 29 CFR 1904.39(b)(7)). 
Likewise, if an employer does not learn right away that a reportable fatality or in-
patient hospitalization is work-related, the employer must make the report to OSHA 
within 8 hours or 24 hours of learning that the death or in-patient hospitalization was the 
result of a work-related COVID-19 exposure. For example, if an employee is in-patient 
hospitalized for a case of COVID-19 at 9:00 a.m. on Monday, but the employer does not 
have enough information to make a work-relatedness determination until 11:00 a.m. on 
Monday, then the employer would be required to report the hospitalization within 24 
hours of learning that the hospitalization was work-related (i.e., by 11:00 a.m. on 
Tuesday) (see 29 CFR 1904.39(b)(8)).   
Finally, if an employer makes a report to OSHA concerning a work-related 
COVID-19 in-patient hospitalization and that employee subsequently dies from the 
illness, the employer does not need to make an additional fatality report to OSHA.   
III. How to Report COVID-19 Fatalities and In-Patient Hospitalizations and What 
Information Must be Included in the Report. 
Paragraph (k)(2) of the standard provides that when reporting work-related 
COVID-19 fatalities and in-patient hospitalizations to OSHA in accordance with 

paragraph (k)(1), the employer must follow the requirements in 29 CFR 1904.39, except 
for 29 CFR parts 1904.39(a)(1)-(2) and (b)(6). As explained above, OSHA has included 
specific provisions for the reporting of work-related COVID-19 fatalities and in-patient 
hospitalizations that differ from 29 CFR 1904.39. However, when making COVID-19 
fatality and in-patient hospitalization reports to OSHA, employers must follow the other 
reporting procedures set forth in § 1904.39. Specifically, under § 1904.39(a)(3), 
employers have three options for reporting work-related fatalities and in-patient 
hospitalizations to OSHA: 
1. by telephone to the OSHA Area Office that is nearest to the site of the incident; 
2. by telephone to the OSHA toll-free central telephone number, 1-800-321-OSHA 
(1-800-321-6742); 
3. by electronic submission using the reporting application located on OSHA's 
public website at www.osha.gov.   
Section 1904.39(a)(3) also allows employers to report work-related fatalities and 
in-patient hospitalizations to OSHA in person to the OSHA Area Office that is nearest to 
the site of the incident. However, because many OSHA Area Offices are closed to the 
public during the COVID-19 pandemic, employers must use one of the three options 
listed above. In addition, § 1904.39(b)(1) makes clear that, if the OSHA Area Office is 
closed, an employer may not report a work-related fatality or in-patient hospitalization by 
leaving a message on OSHA’s answering machine, faxing the Area Office, or sending an 
email. Instead, the employer must make the report by using the 800 number or the 
reporting application located on OSHA's public website at www.osha.gov.   
The other provisions in 29 CFR 1904.39 (except for 29 CFR 1904.39(a)(1)-(2) 
and (b)(6)) also apply to the reports required by paragraph (k). For example, employers 
should consult 29 CFR 1904.39(b)(2) to determine what information employers must 
give to OSHA when making COVID-19 fatality or in-patient hospitalization reports. Per 

that provision, employers must give OSHA the following information for each fatality or 
in-patient hospitalization: the establishment name, the location of the work-related 
incident, the time of the work-related incident, the type of reportable event (i.e., fatality 
or in-patient hospitalization), the number of employees who suffered a fatality or in-
patient hospitalization, the names of the employees who suffered a fatality or in-patient 
hospitalization, the employer’s contact person and his or her phone number, and a brief 
description of the work-related incident.   
References:  
Centers for Disease Control and Prevention. (2020, May 20). Reporting and Coding 
Deaths Due to COVID-19. https://www.cdc.gov/nchs/covid19/coding-and-reporting.htm. 
(CDC, May 20, 2020).  
Pappas, S. (2020, May 19). How COVID-19 Deaths are Counted. Scientific American. 
https://www.scientificamerican.com/article/how-covid-19-deaths-are-counted1/. (Pappas, 
May 19, 2020). 
L. Availability of Records
Section 8(c)(1) of the Act requires employers to “make, keep and preserve, and 
make available to the Secretary [of Labor] or the Secretary of Health and Human 
Services, such records regarding his activities relating to this Act as the Secretary, in 
cooperation with the Secretary of Health and Human Services, may prescribe by 
regulation as necessary or appropriate for the enforcement of this Act or for developing 
information regarding the causes and prevention of occupational accidents and 
illnesses.”  Section 8(c)(2) of the Act specifically directs the Secretary of Labor to 
promulgate regulations requiring employers to maintain accurate records of work-related 
injuries and illnesses. Section 8(c)(3) of the Act requires employers to “maintain accurate 
records of employee exposures to potentially toxic materials or harmful physical agents 
which are required to be monitored or measured under section 6 [of the Act.]” In 
accordance with section 8(c), paragraph (l) of the ETS includes availability of records 
requirements for certain COVID-19-related records required to be created and maintained 

by the ETS. This paragraph provides a right of access to records by employees, employee 
representatives, and OSHA.   
Paragraph (l)(1) specifies that the employer must make available, for examination 
and copying, the individual COVID-19 vaccine documentation and any COVID-19 test 
results required by the ETS for a particular employee to that employee and to anyone 
having written authorized consent of that employee by the end of the next business day 
after a request. Prompt employee access to this information ensures that employees have 
the information necessary to take an active role in their employers’ efforts to prevent 
COVID-19 transmission in the workplace. In particular, in circumstances where 
employers or employees choose to have the employee’s COVID-19 test results go 
directly to the employer, paragraph (l)(1) gives the employee access to their own records. 
Access to COVID-19 test results may be helpful for a requesting employee in evaluating 
information relevant to COVID-19 exposure, including if that exposure occurred at the 
workplace. Prompt production of these records can also assist employees in making 
personal medical decisions and seeking care from a licensed healthcare provider if 
necessary.  
Employers should note that employee privacy is protected under the access to 
records provisions in paragraph (l)(1). Specifically, as noted above, paragraph (l)(1) 
requires employers to provide access to the vaccination records or COVID-19 test results 
for a particular employee to that employee or to anyone having that employee’s written 
permission. However, it does not authorize employers to allow anyone other than the 
particular employee to access their records or results without the written consent of that 
employee (except as provided for under paragraph (l)(3)). 
Paragraph (l)(2) requires the employer to make the following information 
available to an employee or an employee representative on request: (1) the aggregate 
number of fully vaccinated employees at a workplace and (2) the total number of 

employees at that workplace. This information must be made available to these 
individuals by the end of the next business day after a request. Employers will be able to 
utilize the roster of each employee’s vaccination status they are required to maintain 
under paragraph (e)(4) of this section to provide this information promptly to a requester.  
Since the aggregate totals of fully vaccinated employees and total employees 
made available by request in paragraph (l)(2) do not contain any personal identifiable 
information or personal medical information, OSHA does not believe that access to these 
records raises any serious confidentiality or privacy concern if disclosed to employees or 
their representatives.
OSHA believes that access to this information will allow employees and 
employee representatives to calculate a percentage of fully vaccinated employees at a 
workplace, evaluate the efficacy of the employer’s vaccination policy, raise any concerns 
identified to OSHA, and actively participate in the employer’s vaccination efforts. 
Without the provision of this information to employees and their representatives, the only 
potential check on whether the employer is complying with the requirements of the ETS 
would be OSHA inspections. The agency believes that making this information available 
to employee representatives will help ensure compliance with the requirements of the 
ETS and thereby protect workers.
Consistent with 29 CFR 1904.35(a)(3), OSHA interprets the term “employee” as 
used in paragraph (l) to include former employees. In addition, for purposes of paragraph 
(l)(2), the term “representative” is intended to have the same meanings as in 29 CFR 
1904.35(b)(2), which encompasses two types of employee representatives. The first is a 
personal representative of the employee, who is a person the employee designates, in 
writing, as his or her personal representative, or is a legal representative of a deceased or 
legally incapacitated employee. The second is an authorized representative, which is 
defined as an authorized collective bargaining agent of one or more employees working 

at the employer’s worksite. In accordance with these interpretations, OSHA also 
interprets the phrase “employee representative,” as used in paragraph (l)(2), to include the 
personal and authorized representatives of former employees. These interpretations are 
limited to these provisions.
Under paragraphs (l)(1) and (l)(2), requesters are entitled to one free copy of each 
requested record, which is consistent with OSHA’s recordkeeping regulation at 29 CFR 
1904.35. The cost of providing one free copy to employees, former employees, and/or 
their representatives is minimal, and these individuals are more likely to access the 
records if it is without cost. Allowing the employer to charge for a copy of the record 
would only delay the production of the information. After receiving an initial, free copy 
of a requested record or document, an employee, former employee, or representative may 
be charged a reasonable fee for copying duplicative records. However, no fee may be 
charged for an update to a previously requested record. It should be noted that each 
COVID-19 test is a separate record, and, as such, the employee or the representative is 
entitled to one free copy of each COVID-19 test record.
Paragraph (l)(3) provides OSHA with a specific right of access. Under paragraph 
(l)(3)(i), employers must provide the written policy required by paragraph (d), and the 
aggregate numbers described in paragraph (l)(2) of this section (both the aggregate 
number of fully vaccinated employees at a workplace and the total number of employees 
at that workplace), to the Assistant Secretary for examination and copying within 4 
business hours of a request. Consistent with the requirements in 29 CFR 1904.40(b)(2), if 
the records are maintained at a location in a different time zone, the employer may use 
the business hours of the establishment at which the records are located when calculating 
the deadline.  
Providing OSHA with prompt access to the written policy and the aggregate 
numbers allows the agency to more rapidly focus inspections on employers that may not 

be in compliance with the requirements of this ETS. In addition, this information will 
help OSHA determine what to focus on in an investigation. For example, if an employer 
has established, implemented, and is enforcing a written mandatory vaccination policy 
under paragraph (d)(1) and their aggregate numbers indicate that their entire workforce is 
fully vaccinated against COVID-19, the agency might approach the investigation 
differently than in a workplace where the employer’s written policy (under paragraph 
(d)(2)) allows employees to provide proof of regular testing for COVID-19 in accordance 
with paragraph (g) and wear a face covering in accordance with paragraph (i), instead of 
being fully vaccinated. This information also provides OSHA representatives with the 
ability to quickly check any vaccination claims made by an employer without 
undertaking an employee-by-employee assessment and assists OSHA representatives in 
their evaluation of the effectiveness of the employer’s written policy.  
Having this information within 4 business hours of the request helps the agency 
act more quickly to protect employees and preserves agency resources. In addition, the 4-
hour response time is consistent with similar obligations under other OSHA 
recordkeeping requirements, such as the recordkeeping requirement in 29 CFR 
1904.40(a).
Paragraph (l)(3)(ii) requires employers to provide all other records and other 
documents that are required to be maintained by this section to the Assistant Secretary for 
examination and copying by the end of the next business day after a request. This means 
that employers must allow OSHA representatives to examine and copy each 
employee’s COVID-19 vaccine documentation (required to be maintained under 
paragraph (e)(4)), the roster of employee vaccination status (required to be maintained 
under paragraph (e)(4)), and each employee’s COVID-19 test results (required to be 
maintained under paragraph (g)(4)), upon request.  

As indicated in paragraph (c), the term Assistant Secretary includes the Assistant 
Secretary’s designees. Consequently, the records and information required to be provided 
to the Assistant Secretary under paragraph (l)(3) must be given to the Assistant Secretary 
or their representatives, such as OSHA’s Compliance Safety and Health Officers.
As noted above, section 8 of the OSH Act recognizes OSHA’s right of access to 
records relating to employer compliance with occupational safety and health standards 
and regulations, including access to relevant employee medical records. OSHA does not 
believe that its inspectors need to obtain employee permission to access and 
review personally identifiable information. Gaining this permission would essentially 
make it impossible to obtain full access to the records in a timely manner, which is 
needed by OSHA to perform a meaningful workplace investigation. OSHA also has 
policies and procedures in place to ensure the privacy and confidentiality of employee 
records it accesses during inspections. Finally, without complete and timely access to 
the vaccine and testing records, agency efforts to conduct immediate interventions to 
ensure employees are protected from COVID-19 at a specific workplace would be 
limited.
OSHA does not prescribe specific methods for requests for records in this ETS. 
Employees, employee representatives, and the Assistant Secretary and designees can 
submit requests in any manner that provides adequate notice of the request to the 
employer. This may include requests by in writing (e.g., email, fax, letter), by phone, or 
in person.  
M. Dates
To minimize transmission of COVID-19 in the workplace, it is essential that 
employers ensure that the provisions of this ETS are implemented as quickly as possible, 
but no later than the dates outlined in paragraph (m). This paragraph sets forth the 
effective date of the section and the compliance dates for specific requirements of the 

standard. The effective date for this ETS, as required by section 6(c)(1) of the OSH Act 
(29 U.S.C. 655(c)(1)), is the date of publication in the Federal Register. The compliance 
date for all provisions in the ETS is 30 days after the effective date, except for paragraph 
(g) (COVID-19 testing for employees who are not fully vaccinated), which requires 
compliance within 60 days of the effective date. Given the grave danger to employees 
from occupational exposure to COVID-19, as previously described, the effective date and 
compliance dates provided for this ETS are reasonable and appropriate. 
For over a year and a half—since at least January 2020, when the Secretary of 
Health and Human Services declared COVID-19 to be a public health emergency for the 
entire United States—all employers have been made acutely aware of the importance of 
minimizing employees’ exposure to COVID-19 and many have willingly joined the 
global response to stop the spread of COVID-19 and to protect their employees. 
Therefore, many employers have already been encouraging their employees to get 
vaccinated against COVID-19. Many employers have also instituted vaccination 
mandates (see Technological Feasibility, Section IV.A. of this preamble, for more 
information).  
OSHA has published this ETS because there is great urgency in instituting the 
workplace protections OSHA has found to be necessary as quickly as possible. 
Unvaccinated workers are being hospitalized with COVID-19 every day, and many are 
dying, so it is particularly critical to remove obstacles as soon as possible for those who 
wish to be vaccinated.  At the same time, OSHA has set the compliance dates to allow 
enough time for employers to obtain and read the standard, become knowledgeable about 
the standard’s requirements, and undertake the necessary steps for compliance.
OSHA anticipates that employers will be able to implement measures to comply 
with most provisions of the ETS well within 30 days, pursuant to paragraph (m)(2)(i). 
Even in situations where an employer has not previously taken the required actions to 

address COVID–19 hazards in the workplace, steps such as developing a vaccination 
policy, determining employee vaccination status, providing support for employee 
vaccination, ensuring employees who are not fully vaccinated wear face coverings, and 
most other measures required under the standard can readily be completed within the 30-
day time period. These measures do not require extensive lead times for large employers 
to implement.  The scope of the standard is limited to employers with more than 100 
employees largely because OSHA is especially confident that these employers will have 
the ability to implement the standard.
Paragraph (m)(2)(ii) of the ETS provides a longer period of time – 60 days – for 
employers to comply with the requirements for COVID-19 testing in paragraph (g). 
Paragraph (g) requires employers to implement COVID-19 testing and reporting of 
results for employees who are not fully vaccinated.  One reason for this extended period 
of time for testing is that employers may need additional time to develop policies and 
procedures regarding COVID-19 testing and associated recordkeeping.  
Perhaps more critically, this ETS is intended to incentivize vaccination, so this 
delayed compliance date was established to allow sufficient time for employees to 
complete a COVID-19 primary vaccination before it is necessary to comply with the 
testing requirements in paragraph (g).  The 60-day compliance period in paragraph 
(m)(2)(ii) provides employees with sufficient time to receive one dose of a single-dose 
primary vaccination (e.g., Janssen (Johnson & Johnson)) or both doses of a two-dose 
primary vaccination series (e.g., Pfizer-BioNTech, Moderna). For the Janssen COVID-19 
vaccine, the primary vaccination takes 1 day to complete (CDC, August 10, 2021). 
Employees who receive the Janssen vaccine could therefore begin their primary 
vaccination at any time up to and including the 60th day from the date of publication in 
the Federal Register in order to be exempt from the testing requirements of paragraph 
(g).  For the Pfizer-BioNTech COVID-19 vaccine, the primary vaccination series takes 

21 days to complete (CDC, August 25, 2021).  Employees receiving the Pfizer-BioNTech 
series could begin their primary vaccination series up to 39 days from the date of 
publication in the Federal Register. Finally, for the Moderna COVID-19 vaccine, the 
primary vaccination series takes 28 days to complete (CDC, August 23, 2021). 
Employees receiving the Moderna series could therefore begin their primary vaccination 
series up to 32 days from the date of publication in the Federal Register.  
As specified in paragraph (m)(2)(ii), if an employee completes the entire primary 
vaccination within 60 days following publication in the Federal Register, that employee 
does not have to be tested under paragraph (g), even if they have not yet completed the 
two week waiting period that is required to meet the definition of fully vaccinated in 
paragraph (c).  Employers must begin compliance with the testing requirements of 
paragraph (g) only for employees who have not yet completed primary vaccination (i.e., 
employees who have not received any doses, employees who have received only one 
dose of a two-dose series) within 60 days from the date of publication in the Federal 
Register.  And because employers must have their vaccination support processes (as 
required by paragraph (f)) in place before employees would need to initiate their primary 
vaccination in time to avoid testing under this section, employees will be able to avoid all 
testing costs required by this ETS.  
Compliance with the requirements of the ETS within the specified dates is 
achievable. Many employers are likely already in compliance with at least some of the 
provisions of the ETS. Resources are also readily available to help employers achieve 
compliance. These resources include guidance issued by OSHA, the CDC, state and local 
governments, trade associations, and other organizations to help employers successfully 
implement vaccination, testing, and face covering requirements to minimize the 
transmission of COVID-19 in the workplace. OSHA therefore concludes that the 

compliance dates in this ETS strike a reasonable balance between incentivizing 
vaccination and allowing enough time for employers to comply.  
Although employers are not required to comply with the requirements of this ETS 
until 30 days from the date of publication in the Federal Register (60 days for paragraph 
(g)), OSHA strongly encourages employers to implement the required measures to 
support employee vaccination as soon as practicable.  Providing support for employees to 
receive the COVID-19 vaccine and recover from side effects, as required in paragraph (f) 
of the ETS, prior to the compliance date may encourage employees to receive a COVID-
19 vaccination at the earliest possible date.  This would not only reduce the grave danger 
of COVID-19 in the workplace but also reduce burdens on both employers and 
employees when the compliance dates for the additional requirements for employees who 
are not fully vaccinated arrive.
References:
Centers for Disease Control and Prevention (CDC). (2021, August 10). Janssen COVID-
19 Vaccine (Johnson & Johnson). https://www.cdc.gov/vaccines/covid-19/info-by-
product/moderna/index.html. (CDC, August 10, 2021)
Centers for Disease Control and Prevention (CDC). (2021, August 23). Moderna 
COVID-19 Vaccine. https://www.cdc.gov/vaccines/covid-19/info-by-
product/moderna/index.html. (CDC, August 23, 2021)
Centers for Disease Control and Prevention (CDC). (2021, August 25). Pfizer-BioNTech 
COVID-19 Vaccine. https://www.cdc.gov/vaccines/covid-19/info-by-
product/pfizer/index.html. (CDC, August 25, 2021)
N. Severability
OSHA’s amendment to its COVID-19 ETS, Part 1910, Subpart U, includes a 
republication of § 1910.505, Severability.  Section 1910.505 contains a severability 
clause, the primary purpose of which is to express OSHA’s intent that if any section or 
provision of the COVID-19 ETS is held invalid or unenforceable or is stayed or enjoined 
by any court of competent jurisdiction, the remaining sections or provisions should 
remain effective and operative.  OSHA is including 29 CFR 1910.505 as part of this ETS 

for the same reasons the agency included the provision in the Healthcare ETS, and OSHA 
intends for it to have the same purposes and effects as those expressed in the preamble to 
the Healthcare ETS (86 FR 32617-32618), which is hereby included in the record for this 
ETS.
Because subpart U is the result of two separate ETSs published at different times 
and subject to different time frames, but OSHA intends for both ETSs to be subject to the 
same principles of severability, OSHA has relied on the same centralized severability 
section for both for efficiency.  For the benefit of the reader and for administrative 
convenience, this centralized severability section is located in the same subpart as the 
other provisions of the ETS. While either ETS remains in effect, it is OSHA’s intent that 
29 CFR 1910.505 remain in subpart U and operative as to either ETS still in effect.  If 
both ETSs are not made permanent, 29 CFR 1910.505 will cease to have effect along 
with the rest of subpart U.  If either ETS is made permanent, OSHA will provide notice at 
that time of the agency’s intended application of 29 CFR 1910.505 to the newly 
permanent standard.  For example, if 29 CFR 1910.502 becomes permanent because it 
has been finalized, but 29 CFR 1910.501 remains a temporary requirement because it is 
not yet finalized, 29 CFR 1910.505 would remain in subpart U and operative as to 29 
CFR 1910.501 and the agency would separately provide notice of how severability is 
intended to apply to the newly permanent 29 CFR 1910.502. 
O. Incorporation by Reference
    OSHA's amendment to its COVID-19 ETS, Part 1910, Subpart U, includes the 
addition of § 1910.501, Vaccination, Testing, and Face Coverings. This section 
incorporates by reference CDC’s “Isolation Guidance.” 
This document, listed below, will be fixed in time and made publicly available. 
OSHA had previously incorporated this same document into 29 CFR 1910.502 and listed 
it in subpart U’s incorporation by reference (IBR) section, 29 CFR 1910.509. Because 

subpart U is the result of two separate ETSs published at different times and subject to 
different time frames, but both incorporate documents by reference, OSHA has relied on 
the same centralized IBR section for both.  For the benefit of the reader and for 
administrative convenience, this centralized IBR section is located in the same subpart as 
the other provisions of the ETS. 
While either ETS remains in effect, it is OSHA’s intent that 29 CFR 1910.509 
remain in subpart U.  If both ETSs are not made permanent, 29 CFR 1910.509 will cease 
to have effect along with the rest of subpart U. If either ETS is made permanent, OSHA 
intends to recodify the relevant standards for that ETS from 29 CFR 1910.509 into 29 
CFR 1910.6, the centralized IBR section for part 1910.  For example, if 29 CFR 1910.502 
becomes permanent because it has been finalized, but 29 CFR 1910.501 remains a 
temporary requirement because it is not yet finalized, OSHA would relocate all of 29 
CFR 1910.502’s incorporated documents into 29 CFR 1910.6, but 29 CFR 1910.509 
would remain in subpart U and would list the one document incorporated by reference 
into 29 CFR 1910.501.
In this section, OSHA includes a list of the titles, editions/versions, and years of 
the incorporated documents. Stakeholders may consult 29 CFR 1910.509 both to locate 
all of the documents incorporated by reference in subpart U (the paragraph in which the 
document is incorporated is listed there) and to find more details regarding how to locate 
the specific consensus standard and guidelines that have been incorporated by reference 
in the ETS.
OSHA recognizes that the Centers for Disease Control and Prevention (CDC) 
may update their guidelines based on the most current available scientific evidence, but 
OSHA is only requiring compliance with CDC’s “Isolation Guidance” as incorporated by 
reference, which is fixed in time as of February 18, 2021.

As discussed in the preamble of the Healthcare ETS at 86 FR 32619, CDC’s 
guidance, including its “Isolation Guidance,” is not expressed in mandatory terms. As 
such, OSHA has determined it is not sufficiently protective or a meaningful alternative to 
a mandatory standard. OSHA has reviewed this guidance and determined that compliance 
with the safety measures and specific instructions in CDC’s “Isolation Guidance” is 
important to protect workers who work for employees with over 100 employees. For the 
same reasons as described in the Healthcare ETS (86 FR 32619), OSHA is incorporating 
this guidance by reference, and compliance with the recommendations will be mandatory. 
OSHA will be able to cite employers who do not follow them. Compliance with all 
applicable provisions of the incorporated document is required where the provisions into 
which they are incorporated are mandatory, whether the incorporated document sets out 
its directions in mandatory language or recommendations. OSHA recognizes that this 
document incorporated by reference into the ETS may become outdated when newer 
versions are published or other entities revise those documents. In that case, OSHA will 
work quickly to update the ETS through a new rulemaking or issue enforcement 
guidance, as appropriate. But OSHA also has a longstanding de minimis enforcement 
policy to allow employers to rely on documents that are at least as protective.
OSHA is incorporating by reference (in 29 CFR 1910.509) the material below. A 
brief description of the guidance is provided in the text below. A description of its use 
can be found in the Regulatory Text, and Summary and Explanation (Section VI. of this 
preamble), where the guidance is referenced.
Regulatory Text-- §§ 1910.501(h); 1910.502(l)
CDC's Isolation Guidance (2021): This guidance provides steps to take when 
someone is experiencing COVID-19 symptoms and/or tested positive for COVID-19. 
This document is available at www.osha.gov/coronavirus/ets/ibr.    

The CDC document is available at no cost through the contact information listed 
above. In addition, in accordance with § 1910.509(a)(1), this guidance is available for 
inspection at any Regional Office of the Occupational Safety and Health Administration 
(OSHA), or at the OSHA Docket Office, U.S. Department of Labor, 200 Constitution 
Avenue, NW, Room N-3508, Washington, DC 20210; telephone: 202-693-2350 (TTY 
number: 877-889-5627). Due to copyright issues, OSHA cannot post consensus standards 
on the OSHA website or through www.regulations.gov.
List of Subjects 
29 CFR Part 1910
COVID-19, Disease, Health, Health care, Health facilities, Incorporation by 
reference, Occupational safety and health, Public health, Quarantine, Reporting and 
recordkeeping requirements, Respirators, SARS-CoV-2, Telework, Vaccines, Viruses
29 CFR Parts 1915, 1917, 1918, 1926, and 1928
COVID -19, Disease, Health, Health care, Health facilities, Occupational safety 
and health, Public health, Quarantine, Reporting and recordkeeping requirements, 
Respirators, SARS-CoV-2, Telework, Vaccines, Viruses.
Authority and Signature
James S. Frederick, Acting Assistant Secretary of Labor for Occupational 
Safety and Health, U.S. Department of Labor, authorized the preparation of this 
document pursuant to the following authorities: Sections 4, 6, and 8 of the Occupational 
Safety and Health Act of 1970 (29 U.S.C. 653, 655, 657); Secretary of Labor’s Order 8–
2020 (85 FR 58393 (Sept. 18, 2020)); 29 CFR part 1911; and 5 U.S.C. 553.
______________________________
James S. Frederick,

Acting Assistant Secretary of Labor for Occupational Safety and Health.
For the reasons set forth in the preamble, chapter XVII of title 29 of the Code of 
Federal Regulations is amended as follows:  
PART 1910—OCCUPATIONAL SAFETY AND HEALTH STANDARDS
Subpart U — COVID-19 
1. Revise the heading for Subpart U to read as set forth above.
2. The authority citation for subpart U continues to read as follows:
Authority: 29 U.S.C. 653, 655, and 657; Secretary of Labor’s Order No. 8-2020 
(85 FR 58393); 29 CFR part 1911; and 5 U.S.C. 553.
3. Add § 1910.501 to subpart U to read as follows:
§ 1910.501 Vaccination, testing, and face coverings.
(a) Purpose.  This section is intended to establish minimum vaccination, vaccination 
verification, face covering, and testing requirements to address the grave danger of 
COVID-19 in the workplace, and to preempt inconsistent state and local requirements 
relating to these issues, including requirements that ban or limit employers’ authority to 
require vaccination, face covering, or testing, regardless of the number of employees. 
Note 1 to paragraph (a):  This section establishes minimum requirements that employers 
must implement.  Nothing in this section prevents employers from agreeing with workers 
and their representatives to additional measures not required by this section and this 
section does not supplant collective bargaining agreements or other collectively 
negotiated agreements in effect that may have negotiated terms that exceed the 
requirements herein.  The National Labor Relations Act of 1935 (NLRA) protects 
the right of most private-sector employees to take collective action to improve their 
wages and working conditions.  
(b) Scope and application. (1) This section covers all employers with a total of 100 or 
more employees at any time this section is in effect.

(2) The requirements of this section do not apply to:
(i) Workplaces covered under the Safer Federal Workforce Task Force COVID-
19 Workplace Safety: Guidance for Federal Contractors and Subcontractors; 
or
(ii) Settings where any employee provides healthcare services or healthcare 
support services when subject to the requirements of § 1910.502.
(3) The requirements of this section do not apply to the employees of covered 
employers:
(i) Who do not report to a workplace where other individuals such as coworkers 
or customers are present;
(ii) While working from home; or
(iii) Who work exclusively outdoors.
(c) Definitions.  The following definitions apply to this section.
Assistant Secretary means the Assistant Secretary of Labor for Occupational Safety 
and Health, U.S. Department of Labor, or designee.
COVID-19 (Coronavirus Disease 2019) means the disease caused by SARS-CoV-2 
(severe acute respiratory syndrome coronavirus 2).  For clarity and ease of reference, this 
section also uses the term “COVID-19” when describing exposures or potential 
exposures to SARS-CoV-2.
COVID-19 test means a test for SARS-CoV-2 that is:
(i) Cleared, approved, or authorized, including in an Emergency Use 
Authorization (EUA), by the FDA to detect current infection with the SARS-
CoV-2 virus (e.g., a viral test); 
(ii) Administered in accordance with the authorized instructions; and
(iii) Not both self-administered and self-read unless observed by the employer or 
an authorized telehealth proctor. Examples of tests that satisfy this 

requirement include tests with specimens that are processed by a laboratory 
(including home or on-site collected specimens which are processed either 
individually or as pooled specimens), proctored over-the-counter tests, point 
of care tests, and tests where specimen collection and processing is either 
done or observed by an employer.
Face covering means a covering that:
(i)(A) completely covers the nose and mouth;
(B) Is made with two or more layers of a breathable fabric that is tightly 
woven (i.e., fabrics that do not let light pass through when held up to a 
light source);
(C) Is secured to the head with ties, ear loops, or elastic bands that go behind 
the head. If gaiters are worn, they should have two layers of fabric or be 
folded to make two layers; 
(D) Fits snugly over the nose, mouth, and chin with no large gaps on the 
outside of the face; and
(E) Is a solid piece of material without slits, exhalation valves, visible holes, 
punctures, or other openings.
(ii) This definition includes clear face coverings or cloth face coverings with a 
clear plastic panel that, despite the non-cloth material allowing light to pass 
through, otherwise meet this definition and which may be used to facilitate 
communication with people who are deaf or hard-of-hearing or others who 
need to see a speaker’s mouth or facial expressions to understand speech or 
sign language respectively.  
Facemask means a surgical, medical procedure, dental, or isolation mask that is FDA-
cleared, authorized by an FDA EUA, or offered or distributed as described in an FDA 
enforcement policy. Facemasks may also be referred to as ‘‘medical procedure masks.’’

Fully vaccinated means:
(i) A person’s status 2 weeks after completing primary vaccination with a 
COVID-19 vaccine with, if applicable, at least the minimum recommended 
interval between doses in accordance with the approval, authorization, or 
listing that is:
(A) Approved or authorized for emergency use by the FDA; 
(B) Listed for emergency use by the World Health Organization (WHO); or 
(C) Administered as part of a clinical trial at a U.S. site, if the recipient is 
documented to have primary vaccination with the active (not placebo) 
COVID-19 vaccine candidate, for which vaccine efficacy has been 
independently confirmed (e.g., by a data and safety monitoring board) or if 
the clinical trial participant at U.S. sites had received a COVID-19 vaccine 
that is neither approved nor authorized for use by FDA but is listed for 
emergency use by WHO; or
(ii) A person’s status 2 weeks after receiving the second dose of any combination 
of two doses of a COVID-19 vaccine that is approved or authorized by the 
FDA, or listed as a two-dose series by the WHO (i.e., a heterologous primary 
series of such vaccines, receiving doses of different COVID-19 vaccines as 
part of one primary series). The second dose of the series must not be received 
earlier than 17 days (21 days with a 4-day grace period) after the first dose.  
Mandatory Vaccination Policy is an employer policy requiring each employee to be 
fully vaccinated. To meet this definition, the policy must require: vaccination of all 
employees, including vaccination of all new employees as soon as practicable, other than 
those employees: 
(i) For whom a vaccine is medically contraindicated; 
(ii) For whom medical necessity requires a delay in vaccination; or 

(iii) Who are legally entitled to a reasonable accommodation under federal civil 
rights laws because they have a disability or sincerely held religious beliefs, 
practices, or observances that conflict with the vaccination requirement.
Respirator means a type of personal protective equipment (PPE) that is certified by 
the National Institute for Occupational Safety and Health (NIOSH) under 42 CFR part 84 
or is authorized under an EUA by the FDA. Respirators protect against airborne hazards 
by removing specific air contaminants from the ambient (surrounding) air or by 
supplying breathable air from a safe source. Common types of respirators include 
filtering facepiece respirators (e.g., N95), elastomeric respirators, and powered air 
purifying respirators (PAPRs). Face coverings, facemasks, and face shields are not 
respirators.
Workplace means a physical location (e.g., fixed, mobile) where the employer’s work 
or operations are performed.  It does not include an employee’s residence. 
(d) Employer policy on vaccination.  (1) The employer must establish, implement, and 
enforce a written mandatory vaccination policy.  
(2) The employer is exempted from the requirement in paragraph (d)(1) of this 
section only if the employer establishes, implements, and enforces a written 
policy allowing any employee not subject to a mandatory vaccination policy to 
choose either to be fully vaccinated against COVID-19 or provide proof of regular 
testing for COVID-19 in accordance with paragraph (g) of this section and wear a 
face covering in accordance with paragraph (i) of this section.
Note 1 to paragraph (d):  Under federal law, including the Americans with Disabilities 
Act (ADA) and Title VII of the Civil Rights Act of 1964, workers may be entitled to a 
reasonable accommodation from their employer, absent undue hardship.  If the worker 
requesting a reasonable accommodation cannot be vaccinated and/or wear a face 
covering because of a disability, as defined by the ADA, the worker may be entitled to a 

reasonable accommodation.  In addition, if the vaccination, and/or testing for COVID-19, 
and/or wearing a face covering conflicts with a worker’s sincerely held religious belief, 
practice or observance, the worker may be entitled to a reasonable accommodation.  For 
more information about evaluating requests for reasonable accommodation for disability 
or sincerely held religious belief, employers should consult the Equal Employment 
Opportunity Commission’s regulations, guidance, and technical assistance including at:  
https://www.eeoc.gov/wysk/what-you-should-know-about-covid-19-and-ada-
rehabilitation-act-and-other-eeo-laws. 
(e) Determination of employee vaccination status. (1) The employer must determine the 
vaccination status of each employee.  This determination must include whether the 
employee is fully vaccinated.
(2) The employer must require each vaccinated employee to provide acceptable proof 
of vaccination status, including whether they are fully or partially vaccinated.  
Acceptable proof of vaccination status is:   
(i) The record of immunization from a health care provider or pharmacy; 
(ii) A copy of the COVID-19 Vaccination Record Card; 
(iii) A copy of medical records documenting the vaccination; 
(iv) A copy of immunization records from a public health, state, or tribal 
immunization information system; or 
(v) A copy of any other official documentation that contains the type of vaccine 
administered, date(s) of administration, and the name of the health care 
professional(s) or clinic site(s) administering the vaccine(s);
(vi) In instances where an employee is unable to produce acceptable proof of 
vaccination under paragraphs (e)(2)(i) through (v) of this section, a signed and 
dated statement by the employee: 

(A) Attesting to their vaccination status (fully vaccinated or partially 
vaccinated);
(B) Attesting that they have lost and are otherwise unable to produce proof 
required by this section; and  
(C) Including the following language: “I declare (or certify, verify, or state) 
that this statement about my vaccination status is true and accurate. I 
understand that knowingly providing false information regarding my 
vaccination status on this form may subject me to criminal penalties.”
Note 1 to paragraph (e)(2)(vi): An employee who attests to their vaccination 
status should, to the best of their recollection, include the following information in 
their attestation: the type of vaccine administered; date(s) of administration; and 
the name of the health care professional(s) or clinic site(s) administering the 
vaccine(s).
(3) Any employee who does not provide one of the acceptable forms of proof of 
vaccination status in paragraph (e)(2) of this section to the employer must be 
treated as not fully vaccinated for the purpose of this section.
(4) The employer must maintain a record of each employee’s vaccination status and 
must preserve acceptable proof of vaccination for each employee who is fully or 
partially vaccinated. The employer must maintain a roster of each employee’s 
vaccination status.  These records and roster are considered to be employee 
medical records and must be maintained as such records in accordance with 
§1910.1020 and must not be disclosed except as required or authorized by this 
section or other federal law.  These records and roster are not subject to the 
retention requirements of § 1910.1020(d)(1)(i) but must be maintained and 
preserved while this section remains in effect.

(5) When an employer has ascertained employee vaccination status prior to the 
effective date of this section through another form of attestation or proof, and 
retained records of that ascertainment, the employer is exempt from the 
requirements in paragraphs (e)(1) through (3) of this section only for each 
employee whose fully vaccinated status has been documented prior to the 
effective date of this section.  For purposes of paragraph (e)(4) of this section, the 
employer’s records of ascertainment of vaccination status for each such person 
constitute acceptable proof of vaccination.
(f) Employer support for employee vaccination. The employer must support COVID-19 
vaccination as described in this paragraph.  
(1) Time for vaccination. The employer must: 
(i) Provide a reasonable amount of time to each employee for each of their 
primary vaccination dose(s); and 
(ii) Provide up to 4 hours paid time, including travel time, at the employee’s 
regular rate of pay for this purpose.
(2)  Time for recovery. The employer must provide reasonable time and paid sick 
leave to recover from side effects experienced following any primary vaccination 
dose to each employee for each dose.
(g) COVID-19 testing for employees who are not fully vaccinated.  (1) The employer 
must ensure that each employee who is not fully vaccinated complies with paragraph 
(g)(1)(i) or (ii) of this section:
(i)  An employee who reports at least once every 7 days to a workplace where 
other individuals such as coworkers or customers are present: 
(A)Must be tested for COVID-19 at least once every 7 days; and

(B) Must provide documentation of the most recent COVID-19 test result to 
the employer no later than the 7th day following the date on which the 
employee last provided a test result.
(ii) An employee who does not report during a period of 7 or more days to a 
workplace where other individuals such as coworkers or customers are present 
(e.g., teleworking for two weeks prior to reporting to a workplace with 
others): 
(A)Must be tested for COVID-19 within 7 days prior to returning to the 
workplace; and
(B) Must provide documentation of that test result to the employer upon return 
to the workplace.
Note 1 to paragraph (g)(1):  This section does not require the employer to pay for any 
costs associated with testing; however employer payment for testing may be required 
by other laws, regulations, or collective bargaining agreements or other collectively 
negotiated agreements.  This section also does not prohibit the employer from paying 
for costs associated with testing required by paragraph (g)(1) of this section.  
(2)  If an employee does not provide documentation of a COVID-19 test result as 
required by paragraph (g)(1) of this section, the employer must keep that 
employee removed from the workplace until the employee provides a test result.    
(3) When an employee has received a positive COVID-19 test, or has been diagnosed 
with COVID-19 by a licensed healthcare provider, the employer must not require 
that employee to undergo COVID-19 testing as required under paragraph (g) of 
this section for 90 days following the date of their positive test or diagnosis.
(4) The employer must maintain a record of each test result provided by each 
employee under paragraph (g)(1) of this section or obtained during tests 
conducted by the employer.  These records are considered to be employee 

medical records and must be maintained as such records in accordance with § 
1910.1020 and must not be disclosed except as required or authorized by this 
section or other federal law.  These records are not subject to the retention 
requirements of § 1910.1020(d)(1)(i) but must be maintained and preserved while 
this section remains in effect.
(h) Employee notification to employer of a positive COVID-19 test and removal.  
Regardless of COVID-19 vaccination status or any COVID-19 testing required under 
paragraph (g) of this section, the employer must: 
(1) Require each employee to promptly notify the employer when they receive a 
positive COVID-19 test or are diagnosed with COVID-19 by a licensed 
healthcare provider; and
(2) Immediately remove from the workplace any employee who receives a positive 
COVID-19 test or is diagnosed with COVID-19 by a licensed healthcare provider 
and keep the employee removed until the employee:
 (i) Receives a negative result on a COVID-19 nucleic acid amplification test 
(NAAT) following a positive result on a COVID-19 antigen test if the 
employee chooses to seek a NAAT test for confirmatory testing;
(ii)  meets the return to work criteria in CDC’s “Isolation Guidance” (incorporated 
by reference, § 1910.509); or 
(iii)  Receives a recommendation to return to work from a licensed healthcare 
provider. 
Note 1 to paragraph (h)(2):  This section does not require employers to provide paid 
time to any employee for removal as a result of a positive COVID-19 test or 
diagnosis of COVID-19; however, paid time may be required by other laws, 
regulations, or collective bargaining agreements or other collectively negotiated 
agreements.    

(i) Face coverings.  (1) The employer must ensure that each employee who is not fully 
vaccinated wears a face covering when indoors and when occupying a vehicle with 
another person for work purposes, except:
(i) When an employee is alone in a room with floor to ceiling walls and a closed 
door. 
(ii) For a limited time while the employee is eating or drinking at the workplace 
or for identification purposes in compliance with safety and security 
requirements.
(iii) When an employee is wearing a respirator or facemask. 
(iv) Where the employer can show that the use of face coverings is infeasible or 
creates a greater hazard that would excuse compliance with this paragraph 
(e.g., when it is important to see the employee’s mouth for reasons related to 
their job duties, when the work requires the use of the employee’s uncovered 
mouth, or when the use of a face covering presents a risk of serious injury or 
death to the employee).
(2) The employer must ensure that any face covering required to be worn by this 
section:
(i) Is worn by the employee to fully cover the employee’s nose and mouth; and
(ii) Is replaced when wet, soiled, or damaged (e.g., is ripped, has holes, or has 
broken ear loops).
(3) The employer must not prevent any employee from voluntarily wearing a face 
covering or facemask unless the employer can demonstrate that doing so would 
create a hazard of serious injury or death, such as interfering with the safe 
operation of equipment.  
(4) The employer must permit the employee to wear a respirator instead of a face 
covering whether required or not. In addition, the employer may provide 

respirators to the employee, even if not required.  In such circumstances, the 
employer must also comply with § 1910.504.
(5) The employer must not prohibit customers or visitors from wearing face 
coverings.
Note 1 to paragraph (i)(5): Nothing in this section precludes employers from 
requiring customers or visitors to wear face coverings.
Note 1 to paragraph (i):  Face shields may be worn in addition to face coverings to 
prevent them from getting wet and soiled.
Note 2 to paragraph (i): This section does not require the employer to pay for any costs 
associated with face coverings; however employer payment for face coverings may be 
required by other laws, regulations, or collective bargaining agreements or other 
collectively negotiated agreements.  This section also does not prohibit the employer 
from paying for costs associated with face coverings required by this section.  
(j) Information provided to employees.  The employer must inform each employee, in a 
language and at a literacy level the employee understands, about: 
(1) The requirements of this section as well as any employer policies and procedures 
established to implement this section;
(2) COVID-19 vaccine efficacy, safety, and the benefits of being vaccinated, by 
providing the document, “Key Things to Know About COVID-19 Vaccines,” 
available at https://www.cdc.gov/coronavirus/2019-
ncov/vaccines/keythingstoknow.html;
(3) The requirements of 29 CFR 1904.35(b)(1)(iv), which prohibits the employer 
from discharging or in any manner discriminating against an employee for 
reporting a work-related injuries or illness, and section 11(c) of the OSH Act, 
which prohibits the employer from discriminating against an employee for 
exercising rights under, or as a result of actions that are required by, this section. 

Section 11(c) also protects the employee from retaliation for filing an 
occupational safety or health complaint, reporting a work-related injuries or 
illness, or otherwise exercising any rights afforded by the OSH Act; and
(4) The prohibitions of 18 U.S.C. 1001 and of section 17(g) of the OSH Act, which 
provide for criminal penalties associated with knowingly supplying false 
statements or documentation. 
(k)  Reporting COVID-19 fatalities and hospitalizations to OSHA. (1) The employer must 
report to OSHA:
(i) Each work-related COVID-19 fatality within 8 hours of the employer learning 
about the fatality.       
(ii) Each work-related COVID-19 in-patient hospitalization within 24 hours of the 
employer learning about the in-patient hospitalization.
(2) When reporting COVID-19 fatalities and in-patient hospitalizations to OSHA in 
accordance with paragraph (j)(1) of this section, the employer must follow the 
requirements in 29 CFR part 1904.39, except for 29 CFR part 1904.39(a)(1) and 
(2) and (b)(6).
(l) Availability of records.  (1) By the end of the next business day after a request, the 
employer must make available, for examination and copying, the individual COVID-19 
vaccine documentation and any COVID-19 test results for a particular employee to that 
employee and to anyone having written authorized consent of that employee.
(2) By the end of the next business day after a request by an employee or an 
employee representative, the employer must make available to the requester the 
aggregate number of fully vaccinated employees at a workplace along with the 
total number of employees at that workplace.
(3) The employer must provide to the Assistant Secretary for examination and 
copying:

(i) Within 4 business hours of a request, the employer’s written policy required by 
paragraph (d) of this section, and the aggregate numbers described in 
paragraph (l)(2) of this section; and
(ii) By the end of the next business day after a request, all other records and other 
documents required to be maintained by this section.
(m) Dates—(1) Effective date.  This section is effective as of [INSERT DATE OF 
PUBLICATION IN THE FEDERAL REGISTER].
(2) Compliance dates.  (i) Employers must comply with all requirements of this 
section, except for requirements in paragraph (g) of this section, by [INSERT 
DATE 30 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL 
REGISTER].
(ii) Employers must comply with the requirements of this section in paragraph (g) 
by [INSERT DATE 60 DAYS AFTER DATE OF PUBLICATION IN THE 
FEDERAL REGISTER], but employees who have completed the entire 
primary vaccination by that date do not have to be tested, even if they have 
not yet completed the 2-week waiting period.
4. Amend § 1910.504 by revising paragraph (a) to read as follows:
§ 1910.504 Mini Respiratory Protection Program.
(a) Scope and application. This section applies only to respirator use in accordance with 
§§ 1910.501(i)(4) and 1910.502(f)(4). 
* * * * *
5. Republish § 1910.505  to read as follows:
§ 1910.505 Severability.
Each section of this subpart U, and each provision within those sections, is separate and 
severable from the other sections and provisions. If any provision of this subpart is held 
to be invalid or unenforceable on its face, or as applied to any person, entity, or 

circumstance, or is stayed or enjoined, that provision shall be construed so as to continue 
to give the maximum effect to the provision permitted by law, unless such holding shall 
be one of utter invalidity or unenforceability, in which event the provision shall be 
severable from this subpart and shall not affect the remainder of the subpart.
6. Amend § 1910.509 by revising paragraph (b)(5) to read as follows:
§ 1910.509 Incorporation by reference.
* * * * *
(b) * * *
(5) Isolation Guidance. COVID-19: Isolation If You Are Sick; Separate yourself from 
others if you have COVID-19, updated February 18, 2021, IBR approved for §§ 
1910.501(h) and 1910.502(l).
* * * * *
PART 1915—OCCUPATIONAL SAFETY AND HEALTH STANDARDS FOR 
SHIPYARD EMPLOYMENT
7. The authority citation for part 1915 is revised to read as follows:
Authority: 33 U.S.C. 941; 29 U.S.C. 653, 655, 657; Secretary of Labor's Order 
No. 12-71 (36 FR 8754); 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-
96 (62 FR 111), 3-2000 (65 FR 50017), 5-2002 (67 FR 65008), 5-2007 (72 FR 31160), 4-
2010 (75 FR 55355), 1-2012 (77 FR 3912), or 8-2020 (85 FR 58393); 29 CFR part 1911; 
and 5 U.S.C. 553, as applicable.
Subpart Z – Toxic and Hazardous Substances
8. Add § 1915.1501 to subpart Z to read as follows: 
§ 1915.1501 COVID-19. 
The requirements applicable to shipyard employment under this section are identical to 
those set forth at 29 CFR 1910.501.
PART 1917—MARINE TERMINALS

9. The authority citation for part 1917 is revised to read as follows:
Authority:  33 U.S.C. 941; 29 U.S.C. 653, 655, 657; Secretary of Labor's Order 
No. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-
96 (62 FR 111), 3-2000 (65 FR 50017), 5-2002 (67 FR 65008), 5-2007 (72 FR 31160), 4-
2010 (75 FR 55355), 1-2012 (77 FR 3912), or 8-2020 (85 FR 58393), as applicable; and 
29 CFR part 1911.
Sections 1917.28 and 1917.31 also issued under 5 U.S.C. 553.
Section 1917.29 also issued under 49 U.S.C. 1801-1819 and 5 U.S.C. 553.
Subpart B – Marine Terminal Operations
10. Add § 1917.31 to subpart B to read as follows:
§ 1917.31 COVID-19. 
The requirements applicable to marine terminal work under this section are identical to 
those set forth at 29 CFR 1910.501.
PART 1918—SAFETY AND HEALTH REGULATIONS FOR LONGSHORING
11. The authority citation for part 1918 is revised to read as follows:
Authority:  33 U.S.C. 941; 29 U.S.C. 653, 655, 657; Secretary of Labor's Order 
No. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-
96 (62 FR 111), 3-2000 (65 FR 50017), 5-2002 (67 FR 65008), 5-2007 (72 FR 31160), 4-
2010 (75 FR 55355), 1-2012 (77 FR 3912), or 8-2020 (85 FR 58393), as applicable; and 
29 CFR 1911.
Sections 1918.90 and 1918.110 also issued under 5 U.S.C. 553.
Section 1918.100 also issued under 49 U.S.C. 5101 et seq. and 5 U.S.C. 553.
12. Add subpart K to part 1918 to read as follows:
Subpart K – COVID-19.
Sec.
 1918.107 -- 1918.109  [Reserved]

1918.110 COVID-19. 
1918.107 through 1918.109 [Reserved]
§ 1918.110 COVID-19. 
The requirements applicable to longshoring work under this section are identical to those 
set forth at 29 CFR 1910.501.
PART 1926—SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION
13. The authority citation for part 1926 is revised to read as follows:
Authority:  40 U.S.C. 3704; 29 U.S.C. 653, 655, and 657; and Secretary of 
Labor's Order No. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 
(55 FR 9033), 6-96 (62 FR 111), 3-2000 (65 FR 50017), 5-2002 (67 FR 65008), 5-2007 
(72 FR 31159), 4-2010 (75 FR 55355), 1-2012 (77 FR 3912), or 8-2020 (85 FR 58393), 
as applicable; and 29 CFR part 1911.
Sections 1926.58, 1926.59, 1926.60, and 1926.65 also issued under 5 U.S.C. 553 
and 29 CFR part 1911.
Section 1926.61 also issued under 49 U.S.C. 1801-1819 and 5 U.S.C. 553.
Section 1926.62 also issued under sec. 1031, Public Law 102-550, 106 Stat. 3672 
(42 U.S.C. 4853).
Section 1926.65 also issued under sec. 126, Public Law 99-499, 100 Stat. 1614 
(reprinted at 29 U.S.C.A. 655 Note) and 5 U.S.C. 553.
Subpart D – Occupational Health and Environmental Controls
14. Add § 1926.58 to read as follows:
§ 1926.58 COVID-19. 
The requirements applicable to construction work under this section are identical to those 
set forth at 29 CFR 1910.501 Subpart U.
PART 1928—OCCUPATIONAL SAFETY AND HEALTH STANDARDS FOR 
AGRICULTURE

15. The authority citation for part 1928 is revised to read as follows:
Authority:  Sections 4, 6, and 8 of the Occupational Safety and Health Act of 
1970 (29 U.S.C. 653, 655, 657); Secretary of Labor's Order No. 12-71 (36 FR 8754), 8-
76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-96 (62 FR 111), 3-2000 (65 
FR 50017), 5-2002 (67 FR 65008), 4-2010 (75 FR 55355), or 8-2020 (85 FR 58393), as 
applicable; and 29 CFR 1911.
Section 1928.21 also issued under 49 U.S.C. 1801-1819 and 5 U.S.C. 553.
Subpart B – Applicability of Standards
16. Amend § 1928.21 by adding paragraph (a)(8) to read as follows:  
§ 1928.21 Applicable standards in 29 CFR part 1910.
(a) * * * 
(8) COVID-19- §1910.501, but only with respect to - 
(i) Agricultural establishments where eleven (11) or more employees are engaged 
on any given day in hand-labor operations in the field; and 
(ii) Agricultural establishments that maintain a temporary labor camp, regardless 
of how many employees are engaged on any given day in hand-labor 
operations in the field.  
* * * * * 
[FR Doc. 2021-23643 Filed: 11/4/2021 8:45 am; Publication Date:  11/5/2021]

 
BOYDEN GRAY & ASSOCIATES PLLC 
801 17TH STREET, NW, SUITE 350  
WASHINGTON, DC 20006 
(202) 955-0620  
 
 
 
 
Honorable Michael E. Gans 
Clerk of the Court 
U.S. Court of Appeals for the Eighth Circuit 
Thomas F. Eagleton Courthouse 
111 South 10th Street 
St. Louis, MO 63102  
 
 
 
 
 
 
 
Dear Mr. Gans: 
 
I am attaching, as one combined PDF: (1) a petition for judicial 
review (including, as an exhibit, the challenged agency action, which is 
490 pages long); and (2) beginning on page 497 of this combo PDF, a 
motion for an administrative stay and stay pending judicial review 
(which has its own exhibits, including another copy of the 490-page 
challenged agency action, per Federal Rule of Appellate Procedure 
27(a)(2)(B)(iii)).  
 
An attorney with my firm contacted your office on October 25, 2021, 
and was told that we could file these documents together, and your office 
would then enter the petition and motion as separate docket entries. 
 
Respectfully, 
 
/S/ R. TRENT MCCOTTER 
 
BOYDEN GRAY & ASSOCIATES PLLC 
801 17th Street NW, Suite 350 
Washington, DC 20006 
202-706-5488 
mccotter@boydengrayassociates.com

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