What is a vaccine passport and will you need one to travel?

Attendees show off their "green passes" (proof of being fully vaccinated against COVID-19 coronavirus disease) as they arrive at Bloomfield Stadium in the Israeli Mediterranean coastal city of Tel Aviv on March 5, 2021, before attending a "green pass concert" for vaccinated seniors, organized by the Tel Aviv municipality. Israel took a step towards normalcy on Sunday, re-opening a raft of businesses and services from pandemic lockdowns, but with some only available to fully vaccinated "green pass" holders. (JACK GUEZ/AFP via Getty Images/TNS)

When travelers venture back out, many — especially those flying overseas — will need to manage new requirements to prove they’ve tested negative for COVID-19 or received a vaccine.