An innovative approach for cross-border travel has been proposed by China President Xi Jinping.
Xi says an international quick response code system would track the health status of all travelers.
The deployment of an international mechanism would enable governments to recognize all health certificates, Xi said. This includes nucleic acid test results and other COVID-19 detection processes.
"We hope more countries will join this mechanism...We need to further standardize policies and establish fast tracks to facilitate the orderly flow of people," Xi said.
Xi told Group of 20 members this past weekend China will be sharing all of its information from the development of a vaccine.
It is not yet clear how many of the G-20 countries are on board. While an international QR code might be beneficial in helping the resumption of international travel some critics have said some countries may not approve of their citizens' being tracked.
Countries have imposed different quarantine and entry restrictions for international passengers. This has made it difficult for travelers, particularly business passengers.
In China, mobile QR codes are now being used in some cities to prove health status and travel records before boarding. A green QR code means that a person is healthy and can travel while a red code means quarantine.
Travelers from Hong Kong to the mainland, for example, no longer need to undergo the country's mandatory 14-day quarantine if they have a green QR code. Residents would need to undergo a nucleic acid test before getting QR codes for travel.