A sign at the airport reminds travelers to wear face marks Oct. 2, 2020, in Honolulu. Hawaii officials announced April 20, 2021, that they are implementing a vaccination verification program to let fully vaccinated state residents skip pre-travel coronavirus testing and quarantine requirements for flights between the islands. (Caleb Jones/AP)
Another use for vaccine passports: Hawaii residents can skip testing, quarantine for interisland flights
