The United States will allow fully vaccinated legal travelers to enter the country through land borders in Canada and Mexico, Homeland Security Secretary Alejandro Mayorkas is expected to announce Wednesday.

Beginning early next month, nonessential travelers, such as those entering for tourism or to visit family members, will be required to show proof of Covid vaccination to Customs and Border Protection officers when they cross land borders. A similar, previously announced policy will also take effect at the same time for air travelers entering the U.S.

Around the start of the new year, essential travelers, such as truck drivers crossing U.S. land borders, will also be required to be fully vaccinated. The officials said the delay will allow essential workers time to get vaccinated without disrupting trade.

Since the start of the coronavirus pandemic in March 2020, only “essential travel” has been allowed across the Canadian and Mexican borders, keeping many family members and loved ones separated. Essential travel, however, has been allowed regardless of vaccination status.

Source: NBC News