he Biden administration announced Thursday that its vaccine rules applying to private businesses with 100 or more employees, certain health care workers and federal contractors will take effect January 4.

The rules stipulate that employees that fall into those groups will need to have received the necessary shots to be fully vaccinated, either two doses of Pfizer or Moderna’s vaccine or one dose of Johnson & Johnson’s vaccine, by January 4.

Eighty-four million employees working at large employers and 17 million health care workers at facilities participating in Medicare and Medicaid will be covered by the rules implemented by the Department of Labor’s Occupational Safety and Health Administration and the Centers for Medicare & Medicaid Services…

The January 4 deadline also means that the deadline for the federal contractor vaccine requirement is getting pushed back. It had previously been scheduled to take effect on December 8.