Major Japanese carrier All Nippon Airways has conducted a trial of digital certificates for coronavirus test results. Airlines hope using such a system could help fully resume international air travel.
Two passengers checking in at Tokyo's Haneda Airport took part in the trial on Monday. They used their smartphones to show negative PCR test results.
The system employs CommonPass, an app developed with the support of the World Economic Forum as part of a global effort.
ANA is the first domestic airline to try CommonPass with real passengers. Seven other carriers worldwide, including Japan Airlines, are also helping with the trials.
They are aiming to help establish a global system that also checks vaccination status using the app.
ANA plans to test a similar digital certificate app developed by the International Air Transport Association.