This fall, California's existing mobile-ID (mID) program will expand to support an official state-issued ID within Apple Wallet or Google Wallet. (Currently, CA's mobile-ID only works within the state-issued app.) California will join Arizona, Colorado, Georgia, Maryland, and Ohio in supporting IDs in Apple Wallet. Most of those states also support mID in Google Wallet, as both companies' Wallet apps use the same international standard (ISO/IEC 18013-5) to implement mID. The primary use case today for mID is presenting ID to TSA at select airport checkpoints, including some terminals at LAX and SFO. It can also be used for age verification in some apps. When used in person, your phone stays in your possession. ID is presented by tapping your phone or showing a QR code. Only the limited information required is transferred, and you must give active permission. mID in Apple Wallet works on both iPhones and Apple Watch.