A federal judge in Florida on Monday declared the Biden administration’s mask mandate for public transportation unlawful.

U.S. District Judge Kathryn Kimball Mizelle, who was appointed by former President Donald Trump, ruled that the U.S. Centers for Disease Control and Prevention exceeded its statutory authority by imposing masking requirements on airplanes, airports, and other forms of public transportation and transportation hubs. Mizelle wrote in a 59-page opinion that the agency did not follow proper procedure in issuing the masking order and failed to adequately explain its decisions.