On May 1, 2023, the Biden administration announced that COVID-19 vaccination requirements for federal employees, federal contractors, and international air travelers will end at the end of the day on May 11, 2023. The federally issued COVID-19 public health emergency declaration will end the same day. Also on May 1, the U.S. Department of Homeland Security (DHS) announced it would lift similar requirements that had applied to land ports of entry and ferry terminals.