Occupational Safety and Health Administration (OSHA): COVID-19 Emergency Temporary Standards (ETS) on Health Care Employment and Vaccinations and Testing for Large Employers [Updated January 5, 2022] [open pdf - 1MB]
From the Executive Summary: "On June 21, 2021, the Occupational Safety and Health Administration (OSHA) promulgated an Emergency Temporary Standard (ETS) for the prevention of the transmission of SARS-CoV-2 [severe acute respiratory syndrome coronavirus 2], the virus that causes COVID-19 [coronavirus disease 2019] in health care employment settings. On December 27, 2021, OSHA announced that it was withdrawing all provisions of this ETS, with the exception of certain COVID-19 reporting requirements. On November 5, 2021, OSHA promulgated a separate ETS that requires employers with 100 or more employees to require that all employees either be fully vaccinated against COVID-19 by January 4, 2022, or test negative for COVID-19 weekly in order to work onsite. On November 6, 2021, the U.S. Court of Appeals for the Fifth Circuit ordered a stay on the OSHA COVID-19 vaccination and testing ETS pending additional judicial review and reaffirmed this stay on November 12, 2021. On December 17, 2021, the U.S. Court of Appeals for the Sixth Circuit dissolved the stay. After this ruling, OSHA announced that it would not issue any citations for noncompliance with any provision of the ETS until January 10, 2022, and for noncompliance with the testing requirements of the ETS until February 9, 2022, provided employers are exercising good faith efforts to comply with the ETS. On January 7, 2022, the U.S. Supreme Court is scheduled to hear oral arguments on challenges to the ETS filed by several states and other groups."
CRS Report for Congress, R46288
Congressional Research Service: https://crsreports.congress.gov/