CDC’s Order requiring proof of COVID-19 vaccination does not apply to Ukrainians who are approved as part of the Uniting for Ukraine program. While CDC’s Order does not apply to Ukrainians who are approved under the Uniting for Ukraine program, the U.S. Department of Homeland Security (DHS) has identified health requirements as a component of the program, which include receiving measles, polio, and at least one dose of COVID-19 vaccine. For more information about the health requirements of the program, how to apply to the program, and the processes to receive travel authorization to come to the United States please visit DHS’ website for the Uniting for Ukraine program. For information not found on DHS’ website, please contact the USCIS Contact Center.