Officials from the U.S. Customs and Border Protection and Centers for Disease Control and Prevention observed the arrival of Flight 15 at Newark Liberty International on Wednesday. The plane carried several passengers who were tested prior to boarding at London’s Heathrow Airport, the results of which were uploaded to the mobile app.

The first CommonPass attempt took place earlier this month on a flight operated by Cathay Pacific Airways Ltd. from Hong Kong to Singapore. Airlines and airports around the world have developed pilot programs to open air travel corridors on certain routes where travelers can avoid strict quarantines by demonstrating a negative test result.

Airlines for America, a trade group representing major US airlines, has campaigned with the Trump administration to allow such a corridor between New York and London, as well as airports and other travel companies on both sides of the Atlantic.

The digital framework for the detection of virus tests and future vaccinations “gives countries more flexibility and the ability to avoid closing borders and put in place mandatory quarantines for all arriving countries,” said Dr. Brad Perkins, co-founder of the Commons Project Foundation and his chief medical officer.

The foundation was established in 2018 with funding from the Rockefeller Foundation to democratize digital documentation. Initial efforts focused on giving East African truck drivers the opportunity to show their vaccinations when crossing national borders.