The Centers for Disease Control and Prevention updated its domestic travel guidance for fully vaccinated people on Friday, lifting certain requirements while continuing to advise mitigation measures like mask-wearing and hand-washing.

A traveler walks on a moving walkway in Terminal 4 at John F. Kennedy International Airport (JFK) in New York, U.S., on Friday, March 26, 2021. The TSA screened more than 1.3 million people both Friday and Sunday, setting a new high since the coronavirus outbreak devastated travel a year ago. Airlines say they believe the numbers are heading up, with more people booking flights for spring and summer, reports the Associated Press. Photographer: Angus Mordant/Bloomberg via Getty Images