Now digital IDs made from passports and state issued IDs can be used as valid forms of identification at certain Transportation Security Administration (TSA) checkpoints at some US airports. Now you won’t have to play Beat the Clock with all of your pockets frantically searching for your wallet as you slowly approach a TSA agent in line.

This new digital ID feature won’t work at every airport. As of Thursday, 21 states and the commonwealth of Puerto Rico have at least one airport that accepts digital ID. You can consult the TSA’s digital map on its website to find out if the state you’re leaving or flying to accepts digital IDs at security checkpoints.

Digital ID adoption has grown across the country for both Android and iPhone users even if it’s not available in every state. Major airports in Arizona, Colorado and Georgia started accepting state IDs from Google Wallet users. Last month, California started accepting IDs in Apple Wallet and Google Wallet at some airports.