IATA's Travel Pass will be rolled out in the coming weeks following a successful testing phase.
"We expect to go live out of the testing mode in the next couple of weeks," Reuters reported IATA director general Willie Walsh as saying.
Designed to help travellers store and manage their verified certifications for Covid-19 tests or vaccines, the app is only available to a small number of travellers as a part of testing by airlines globally.
Currently, some 40 airlines are now trialing IATA's digital passport.
This month, the latest airlines joining the trial list are British Airways — which is also trialing digital travel app, VeriFLY on its international routes — as well as Vietjet just last week.
In Asia, airlines trialing the pass also include Thai Airways, Thai Smile Airways, Malaysia Airlines, ANA, Korean Air, Hong Kong Airlines, Philippine Airlines, Royal Brunei Airlines and Vietnam Airlines.
Emirates president Tim Clark, speaking at the Virtual PATA Annual Summit 2021 continued to urge for industry's adoption of the IATA Travel Pass, calling it a "first and right step" to reopen travel.
Singapore Airlines was the first to trial the digital pass, which was also later accepted at the Lion City's Changi Airport from 1 May.