Legal Sidebari 
 
Supreme Court Stays OSHA Vaccination and 
Testing Standard 
January 21, 2022 
On January 13, 2022, the U.S. Supreme Court stayed the enforcement of the Occupational Safety and 
Health Administration’s (OSHA’s) Coronavirus Disease 2019 (COVID-19) vaccination and testing 
emergency temporary standard (ETS) for employers with 100 or more employees. The ETS generally 
requires such employers to establish and enforce mandatory COVID-19 vaccination or testing policies. In 
a per curiam
 opinion, the Court concluded that staying the implementation of the rule was justified 
because the applicants, the National Federation of Independent Business and a coalition of States, were 
likely to succeed on the merits of their claim that OSHA lacks the statutory authority to issue such a 
standard. The Court maintained that the Occupational Safety and Health Act (OSH Act) authorizes the 
agency to establish only workplace safety standards and not “broad public health measures,” which, 
according to OSHA, would impact approximately 84.2 million employees. The Court indicated that, 
although COVID-19 is a risk that occurs in many workplaces, if OSHA were allowed to regulate COVID-
19 when it is transmissible “at home, in schools, during sporting events, and everywhere else that people 
gather,” it is not an occupational hazard in most workplaces and OSHA’s authority would be expanded 
significantly without clear congressional authorization. This Sidebar provides an overview of the ETS and 
the Court’s decision, and concludes with a few considerations for Congress following the Court’s stay. 
The OSH Act and Emergency Temporary Standards 
Congress enacted the OSH Act i
n 1970 to “assure so far as possible every working man and woman in the 
Nation safe and healthful working conditions . . . .” The law seeks to reduce the frequency and severity of 
work-related injuries and illnesses by promoting a “comprehensive, nationwide approach” to workplace 
safety, and authorizes the Secretary of Labor to promulgate occupational safety and health standards to 
protect workers. The Secretary has delegated this authority to the Assistant Secretary of Labor for 
Occupational Safety and Health, who acts as OSHA’s administrator. 
While OSHA’s safety and health standards generally do not become effective until the agency publishes a 
proposed standard in the 
Federal Register and offers interested parties an opportunity to comment, the 
OSH Act authorizes OSHA to promulgate ETSs that have immediate effect when specified conditions 
exist. Section 6(c)(1) of the OSH Act, codified at
 29 U.S.C. § 655(c)(1), authorizes OSHA to issue an 
ETS that takes effect upon publication in the 
Federal Register if the agency determines that employees 
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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.”  
In its November 5, 2021 
Federal Register notice, OSHA explained that a COVID-19 vaccination and 
testing ETS is appropriate because unvaccinated workers face a grave danger from exposure to COVID-
19 in the workplace. The agency contended that its grave danger finding was 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[.]” 
OSHA further indicated that vaccination provides the most effective and efficient control available to 
unvaccinated workers, with regular testing, the use of face coverings, and the removal of infected 
employees from the workplace also protecting workers who remain unvaccinated. 
The COVID-19 vaccination and testing ETS generally requires employers with 100 or more employees to 
establish, implement, and enforce a written mandatory vaccination
 policy. This policy requires employees 
to be fully vaccinated, except those employees for whom a vaccine is medically contraindicated, those for 
whom medical necessity requires a delay in vaccination, and those who are legally entitled to a reasonable 
accommodation under federal civil rights laws because they have a disability or sincerely held religious 
beliefs that conflict with the vaccination requirement. An employer may be exempt from maintaining this 
type of policy if it establishes, implements, and enforces a written policy that allows an employee to 
either be fully vaccinated against COVID-19 or provide proof of regular testing for COVID-19 and wear 
a face covering when indoors or occupying a vehicle with another person for work purposes. 
Under the ETS,
 testing for employees who are not fully vaccinated must occur at least once every seven 
days for individuals who report at least once every seven days to a workplace where others, such as 
coworkers or customers, are present. Employees who do not report to such a workplace during a period of 
seven or more days must be tested within seven days prior to returning to the workplace. Employers are 
required to maintain a record of each test result, but do not have to pay for any costs associated with 
COVID-19 testing. 
The ETS also requires covered employers to determine the vaccinatio
n status of their employees. 
Employees are required to provide proof of vaccination status to their employers, and the employers must 
preserve this proof and maintain a roster of each employee’s vaccination status. Employers are required to 
support COVID-19 vaccination by providing up to four hours of pai
d time to each employee for each 
primary vaccination dose, and must provide paid sick leave to employees who experience side effects 
following any primary vaccination dose. 
National Federation of Independent Business v. OSHA 
Shortly after its publication in the 
Federal Register, the COVID-19 vaccination and testing ETS was 
challenged in federal appellate courts across the country. On November 6, 2021, the U.S. Court of 
Appeals for the Fifth Circuit temporarily stayed the ETS, pending further action by the court. The Fifth 
Circuit reaffirmed its initial stay less than one week later in
 BST Holdings, L.L.C. et al. v. OSHA, stating: 
“OSHA runs afoul of the statute from which it draws its power and, likely, violates the constitutional 
structure that safeguards our collective liberty.” 
In light of the other pending court challenges to the ETS, and consistent wit
h 28 U.S.C. § 2112, which 
sets forth the governing procedures when an agency order is challenged in more than one federal appellate 
court, the ETS cases were consolidated for further consideration by the U.S. Court of Appeals for the 
Sixth Circuit. On December 17, 2021, the Sixth Circuit
 dissolved the Fifth Circuit’s stay, recognizing 
OSHA’s statutory authority to regulate viruses that are not unique to the workplace and refuting the 
constitutional concerns raised by the ETS’s challengers. 
  
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I
n National Federation of Independent Business v. OSHA, the Supreme Court considered two emergency 
applications to stay the ETS following the Sixth Circuit’s decision. Unlike the Sixth Circuit, the Court 
concluded that the OSH Act does not authorize the kind of COVID-19 regulations articulated in the ETS. 
Discussing the transmissibility of COVID-19 everywhere people gather, the Court observed: “Permitting 
OSHA to regulate the hazards of daily life – simply because most Americans have jobs and face those 
same risks while on the clock – would significantly expand OSHA’s regulatory authority without clear 
congressional authorization.” The Court maintained that the OSH Act empowers the agency to establish 
only workplace safety standards and not broad public health measures. 
While the Court criticized the ETS’s breadth, it also indicated that OSHA could regulate occupation-
specific risks related to COVID-19: 
Where the virus poses a special danger because of the particular features of an employee’s job or 
workplace, targeted regulations are plainly permissible. We do not doubt, for example, that OSHA 
could regulate researchers who work with the COVID-19 virus. So too could OSHA regulate risks 
associated with working in particularly crowded or cramped environments. 
According to the Court, this type of regulation would more appropriately address occupational risk rather 
than a general risk of contracting the virus. The Court stayed the enforcement of the ETS pending 
disposition of the appeal currently before the Sixth Circuit. 
In a concurring
 opinion, Justice Neil Gorsuch, joined by Justices Clarence Thomas and Samuel Alito, 
emphasized OSHA’s lack of authority to issue such a broad ETS. The concurring opinion explicitly 
characterized the ETS as defying t
he “major questions” doctrine. The Court has previously explained that, 
under this doctrine, Congress must speak clearly when authorizing an agency to regulate matters of 
significant economic and political significance. Justice Gorsuch contended that OSHA sought to resolve a 
“question of vast national significance” when it issued the ETS and that Congress “nowhere clearly 
assigned so much power to OSHA.” 
In a dissenting
 opinion, Justices Stephen Breyer, Sonia Sotomayor, and Elena Kagan maintained that the 
ETS “perfectly fits” section 6(c)(1) of the OSH Act and that the standard is necessary to address COVID-
19’s dangers in the workplace. The dissenting Justices determined that, pursuant to section 6(c)(1), the 
COVID-19 virus is both a “new hazard” and a “physically harmful” agent, and that the virus poses a 
“grave danger” to millions of employees—a position that, according to the dissenters, was not disputed by 
the Court. The dissenting Justices criticized the Court’s opinion for limiting OSHA’s regulatory authority 
when the OSH Act permits regulating hazards that may exist both in and out of the workplace: “The 
statute does not require that employees are exposed to those dangers only while on the workplace clock. 
And that should settle the matter.” 
Considerations for Congress 
The
 comment period for the ETS, which also acts a notice of proposed rulemaking for a permanent 
standard, remained open through January 19, 2022. As part of this notice-and-comment rulemaking 
process, OSHA may consider the comments, as well as the Court’s decision, and issue a more narrowly 
tailored permanent rule. Given the Court’s seeming approval of more targeted COVID-19 regulation, it 
seems possible that OSHA could explore new requirements that focus on specific industries or risks in 
particularly crowded workplaces. The agency may also opt to withdraw the ETS altogether. In response to 
the Court’s decision in 
National Federation of Independent Business, Secretary of Labor Marty Walsh, in 
a statement, expressed disappointment with the decision and stated that “[r]egardless of the ultimate 
outcome of these proceedings, OSHA will do everything in its existing authority to hold businesses 
accountable for protecting workers . . . .” 
In 
National Federation of Independent Business, the Supreme Court concluded that the OSH Act does not 
authorize OSHA to impose broadly a mandatory vaccination and testing policy for employers with 100 or
  
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more employees. Congress could clarify the scope of the relevant OSH Act provisions if it determines that 
the Court’s interpretation does not appropriately reflect congressional intent and new federal action is 
necessary to address the evolving pandemic. States may also consider new standards to protect employees 
from workplace exposure to the virus. California, for example, adopted n
ew standards that require 
employers to, among other things, develop and implement a process for screening and responding to 
employees with COVID-19 symptoms. The absence of federal COVID-19 workplace safety standards 
could prompt more States to adopt similar requirements. 
 
Author Information 
 Jon O. Shimabukuro 
   
Legislative Attorney  
 
 
 
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