This educational guide is based on the linked primary sources. It is not a Court publication, is not affiliated with the Court, and is not legal advice.
In brief
Overview
Applicants argue the mandate exceeds OSHA’s statutory authority.
The Agency says the mandate is necessary to protect workers from a grave danger of COVID‑19.
The Court held that OSHA’s authority is limited to work‑related dangers and does not extend to general public health.
The Court granted the applicants’ stay.
According to Court, chief Judge Sutton (dissent) dissented, joined by seven of his colleagues.
Justice Kagan (dissent) argued that the standard falls within OSHA’s core mission to protect employees from grave danger.
Violations of the mandate can result in fines up to $13,653 for standard violations and $136,532 for willful violations.
- [1] 557c80887a8688327a50-r1-797cd667f062a7e0.pdf, p. 6
- [2] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 99
- [3] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 102
- [4] 557c80887a8688327a50-r1-797cd667f062a7e0.pdf, p. 11
- [5] 557c80887a8688327a50-r1-797cd667f062a7e0.pdf, p. 13
- [6] 557c80887a8688327a50-r1-797cd667f062a7e0.pdf, p. 9
- [7] 557c80887a8688327a50-r1-797cd667f062a7e0.pdf, p. 20
- [8] 557c80887a8688327a50-r1-797cd667f062a7e0.pdf, p. 9
Background and question before the Court
OSHA published its COVID‑19 vaccine mandate on November 5, 2021.
Covered employers must develop, implement, and enforce a mandatory COVID‑19 vaccination policy.
According to Agency, the Agency characterizes COVID‑19 as a grave danger that justifies the emergency standard.
The Court considered whether OSHA’s emergency temporary standard exceeds its authority because the Act addresses only work‑related hazards.
What each side argues
Applicants
According to Applicants, applicants seek emergency relief, arguing the OSHA mandate exceeds statutory authority.
According to Scott A. Keller (Applicants), according to Scott A. Keller (Applicants), applicants request an immediate stay because they must submit compliance plans and vaccinate employees by early February.
Scott A. Keller argued that OSHA’s economy‑wide mandate is not a necessary use of its emergency power.
Agency
According to Agency, the Agency announced that for employers acting in good faith, enforcement will not begin until January 10.
According to Agency, the Agency described COVID‑19 as a grave danger that makes the measures essential to protect workers.
According to Agency, OSHA commonly issues nationwide standards that address risks existing throughout the nation, including COVID‑19.
Respondents
According to Respondents, OSHA presented substantial evidence of widespread workplace outbreaks and heightened risk to unvaccinated employees.
Solicitor General
The Solicitor General acknowledges OSHA is limited to regulating work‑related dangers but argues COVID‑19 qualifies as such a danger.
What happened at oral argument
Justice Alito asked whether the question is whether the ETS is necessary to protect the general public’s health or only unvaccinated employees.
Justice Alito further asked whether the focus should be on protecting unvaccinated employees specifically.
Justice Sotomayor asked whether “necessary” imports a strict‑scrutiny standard.
Justice Sotomayor asked how the rule differs from a workplace mask requirement.
Justice Kagan asked who decides the scope of the rule.
According to Justice Kagan, justice Kagan noted that regulators constantly weigh risk‑risk tradeoffs, with one risk vastly outweighing another.
Justice Kavanaugh asked what the Court should look at in evaluating the rule.
Justice Kavanaugh asked how to resolve a statutory provision that is broad but does not speak specifically to the issue.
Justice Thomas asked whether OSHA’s first step is to identify the workforce and the problem before regulating.
Justice Gorsuch asked who decides the scope of the rule.
Justice Barrett asked two questions about the status of this rule as an emergency temporary standard.
- [1] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 24
- [2] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 25
- [3] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 26
- [4] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 30
- [5] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 31
- [6] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 108
- [7] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 36
- [8] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 37
- [9] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 44
- [10] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 69
- [11] e68babe665a786c2af9c-r1-53aeb924bcde3513.pdf, p. 130
What the Court decided
The Court held that OSHA’s authority is limited to work‑related dangers and does not extend to general public health.
The Court granted the applicants’ stay.
According to Court, chief Judge Sutton (dissent) dissented, joined by seven of his colleagues.
Justice Kagan (dissent) argued that the standard falls within OSHA’s core mission to protect employees from grave danger.
Violations of the mandate can result in fines up to $13,653 for standard violations and $136,532 for willful violations.
Why it matters
Violations of the mandate can result in fines up to $13,653 for standard violations and $136,532 for willful violations.
The Federal Government estimates the mandate will save over 6,500 lives and prevent hundreds of thousands of hospitalizations.
According to Justice Kagan, OSHA estimates the standard will save over 6,500 lives and prevent over 250,000 hospitalizations in six months.
Terms to know
No glossary terms are available for this guide.
Primary sources
Read the source materials on the official site or open the immutable repository copy used for this guide.
- 557c80887a8688327a50-r1-797cd667f062a7e0.pdfopinion
- e68babe665a786c2af9c-r1-53aeb924bcde3513.pdforal argument transcript
Guide generated September 29, 2026. Automated validation accepted this version.