With iOS 15.1, you can also choose to add your verifiable COVID-19 vaccination records to the Apple Wallet app to present at businesses and venues.
“With iOS 15, users can download and store verifiable health records, including COVID-19 vaccinations and test results, in the Health app. Verifiable health records in the Health app are based on the SMART Health Cards specification. Users can choose to share verifiable health records stored in the Health app with approved third-party apps requesting this information, like airlines, event venues, and other businesses that facilitate in-person interactions. And in an upcoming software update, they can also choose to add verifiable COVID-19 vaccination records as a vaccination card in Apple Wallet to present to businesses, venues, and more.”