Which businesses must require workers get vaccinated for COVID-19 or be regularly tested? How long do they have to comply? Who pays for the testing? Those are some of the questions that can be answered now that the federal government has released details on the vaccination requirement President Joe Biden announced in September for larger businesses. The rules from the Occupational Safety and Health Administration also apply to state and local government workers, including teachers and school staff, in about half the states. Here's what you need to know: #oshavaccinemandate #covidvacccine