Starting Monday, the U.S. is accepting fully vaccinated travelers at airports and land borders, doing away with a COVID-19 restriction that dates back to the Trump administration. The new rules allow air travel from previously restricted countries as long as the traveler has proof of vaccination and a negative COVID-19 test. Land travel from Mexico and Canada will require proof of vaccination but no test.

Source: https://katakenya.org/2021/11/12/the-u-s-lifts-the-pandemic-travel-ban-and-opens-the-doors-to-international-visitors/