On December 21, 2021, the U.S. Supreme Court took its first step into the fray over federal vaccine mandates. As we have previously posted, legal challenges to the Biden administration’s various vaccine mandates have been working their way through the courts since November. Most recently, the U.S. Court of Appeals for the Sixth Circuit ruled last Friday that OSHA’s Emergency Temporary Standard (ETS) for COVID-19, which includes a vaccine-or-testing mandate, could continue after it was halted by another court the day after it went into effect. In an unusual move, the Supreme Court announced it will hold a special hearing on January 7 to hear arguments on both the ETS and a regulation from the Centers for Medicare and Medicaid Services (CMS) requiring vaccines for health care workers. The Supreme Court has not yet issued any rulings to stay either requirement. Both requirements are set to go into effect in January.

The January 7 hearing will occur just before the Supreme Court is set to begin its regularly scheduled term. The hearing also moves these legal challenges from the so-called “shadow docket,” which has been subject to criticism lately. The Supreme Court has repeatedly upheld state-implemented vaccine mandates in a variety of circumstances. However, the future of OSHA’s ETS and the federal contractor vaccine mandate will likely turn on whether Congress authorized the executive branch to institute these types of requirements. While the Justices’ questions during the January 7 hearing will likely give some insight into how they may rule, the date of a ruling on the future of these requirements is not known.