With no more federal Covid mask mandate on airplanes and other forms of public transportation, you might be wondering: Where in the U.S. am I still required to wear a face covering?

On Monday, a federal judge in Tampa, Florida, struck down the requirement, ruling that the Centers for Disease Control and Prevention overstepped its authority when it created the mandate. The Biden administration said Tuesday that it would likely appeal the decision — but in the meantime, airlines and local transit authorities are responsible for creating and enforcing their own mask policies.