Stricter Covid-19 Testing Requirements for Travelers to U.S. Being Considered to Curb Omicron Spread

WASHINGTON—The Biden administration is weighing stricter Covid-19 testing requirements for travelers entering the U.S., including U.S. citizens, to slow the spread of the emerging Omicron variant.

The Centers for Disease Control and Prevention said rules under consideration would require all travelers, regardless of their vaccination status, to present a negative Covid-19 test within 24 hours of boarding a plane to the U.S., rather than the 72 hours currently allowed for vaccinated travelers. Travelers could also be required to take a second test three to five days after arriving in the U.S.