This will give people an extra two years to get an updated driver’s license or ID card; after the deadline, they won’t be allowed to fly without them.The standard was implemented after 9/11 in an attempt to improve security while flying, so getting one of the cards requires providing several pieces of documentation.In hindsight, that was a slightly optimistic timeline, given that the change required working with dozens of state and territorial governments to overhaul the way their DMVs issued IDs and driver’s licenses, especially since some state officials were staunchly against the change.Many of the previous delays came down to states simply not being ready — some didn’t start issuing Real IDs until 2020.Now, all but one American territory is in compliance with the law, which has mostly moved the responsibility from the governments onto citizens."