Supreme Court blocks nationwide vaccine and testing mandate for large businesses, allows health care vaccine mandate to take effect

(CNN) -- The Supreme Court blocked President Joe Biden's vaccine or testing requirement aimed at large businesses, but it allowed a vaccine mandate for certain health care workers to go into effect nationwide.

The ruling blocking the rule for large businesses was based on the argument that Congress has not given the Occupational Safety and Health Administration the power to enact such a mandate.

"Although Congress has indisputably given OSHA the power to regulate occupational dangers, it has not given that agency the power to regulate public health more broadly. Requiring the vaccination of 84 million Americans, selected simply because they work for employers with more than 100 employees, certainly falls in the latter category," the unsigned opinion says.

Liberal Justices Stephen Breyer, Sonia Sotomayor and Elena Kagan dissented.

This story is breaking and will be updated.