Starting December 6, 2021, adjusted COVID-19 testing requirements will apply for travel to the United States. All air passengers 2 years or older – regardless of citizenship and vaccination status – with a flight departing to the United States from a foreign country are required to show a negative COVID-19 viral test result taken no more than one day before travel, or documentation of having recovered from COVID-19 in the past 90 days, before they board their flight.