"The Supreme Court on Thursday blocked the Biden administration from enforcing a vaccine-or-testing mandate for large employers..."

"... dealing a blow to a key element of the White House’s plan to address the pandemic as cases resulting from the Omicron variant are on the rise. But the court allowed a more modest mandate requiring health care workers at facilities receiving federal money to be vaccinated. The vote in the employer mandate case was 6 to 3, with liberal justices in dissent. The vote in the health care case was 5 to 4, with Chief Justice John G. Roberts Jr. and Justice Brett M. Kavanaugh joining the liberal justices to form a majority...."

The NYT reports.

Here are the opinions — NFIB v. OSHA and Biden v. Missouri.

From the OSHA case:

This is no “everyday exercise of federal power.” In re MCP No. 165, 20 F. 4th, at 272 (Sutton, C. J., dissenting). It is instead a significant encroachment into the lives—and health—of a vast number of employees. “We expect Congress to speak clearly when authorizing an agency to exercise powers of vast economic and political significance.” Alabama Assn. of Realtors v. Department of Health and Human Servs., 594 U. S. ___, ___ (2021) (per curiam) (slip op., at 6) (internal quotation marks omitted). There can be little doubt that OSHA’s mandate qualifies as an exercise of such authority. 

The question, then, is whether the Act plainly authorizes the Secretary’s mandate. It does not. The Act empowers the Secretary to set workplace safety standards, not broad public health measures. See 29 U. S. C. §655(b) (directing the Secretary to set “occupational safety and health standards” (emphasis added)); §655(c)(1) (authorizing the Secretary to impose emergency temporary standards necessary to protect “employees” from grave danger in the workplace)....

From Biden v. Missouri:

[H]ealthcare facilities that wish to participate in Medicare and Medicaid have always been obligated to satisfy a host of conditions that address the safe and effective provision of healthcare.... [T]he Secretary routinely imposes conditions of participation that relate to the qualifications and duties of healthcare workers themselves.... Of course the vaccine mandate goes further than what the Secretary has done in the past to implement infection control. But he has never had to address an infection problem of this scale and scope before.... Vaccination requirements are a common feature of the provision of healthcare in America: Healthcare workers around the country are ordinarily required to be vaccinated for diseases such as hepatitis B, influenza, and measles, mumps, and rubella....

We accordingly conclude that the Secretary did not exceed his statutory authority in requiring that, in order to remain eligible for Medicare and Medicaid dollars, the facilities covered by the interim rule must ensure that their employees be vaccinated against COVID–19.

From the dissent in the Biden case. This is by Justice Thomas (joined by Justices Alito, Gorsuch, and Barrett):

“We expect Congress to speak clearly when authorizing an agency to exercise powers of vast economic and political significance.” Alabama Assn. of Realtors v. Department of Health and Human Servs., 594 U. S. ___, ___ (2021) (per curiam) (slip op., at 6) (internal quotation marks omitted). And we expect Congress to use “exceedingly clear language if it wishes to significantly alter the balance between state and federal power.” Ibid. (internal quotation marks omitted). The omnibus rule is undoubtedly significant—it requires millions of healthcare workers to choose between losing their livelihoods and acquiescing to a vaccine they have rejected for months. Vaccine mandates also fall squarely within a State’s police power, see Zucht v. King, 260 U. S. 174, 176 (1922), and, until now, only rarely have been a tool of the Federal Government. If Congress had wanted to grant CMS authority to impose a nationwide vaccine mandate, and consequently alter the state-federal balance, it would have said so clearly. It did not.