The mandate, set to take effect Jan. 4, would apply to approximately 25% of the US workforce and would affect companies that do business with the federal government - including Google, General Motors, Microsoft and several airlines.
The mandate for businesses providing services for the federal government is part of a suite of Biden administration actions designed to increase vaccination rates. That includes an emergency regulation from the U.S. Occupational Safety and Health Administration that covers private-sector companies with 100 employees or more, a shot requirement for health-care companies paid by Medicare and Medicare, and one for federal workers.
Numerous challenges to those mandates are pending in appellate courts, and the U.S. Court of Appeals for the Fifth Circuit has temporarily halted enforcement of the OSHA regulation. The Sixth Circuit is poised to consider the consolidated challenges to the OSHA rule.