REAL ID now mandatory for air travel in the US.

Starting this week, U.S. domestic air travelers are now required to present a state-issued REAL ID-compliant identification or go through additional security screening at airports. The new rule, which officially took effect on Wednesday, is part of a long-awaited federal effort to tighten travel security. Despite the rollout, operations at major airports like Philadelphia and Atlanta proceeded smoothly, with most passengers arriving prepared with REAL IDs or passports.

However, state Department of Motor Vehicles (DMV) offices in several areas faced heavy crowds, as many last-minute applicants hurried to secure their REAL IDs before upcoming trips. These IDs, which feature a star symbol, are also now mandatory for entry into secure federal facilities.

The Transportation Security Administration (TSA) has confirmed that travelers without a REAL ID can still board domestic flights but should expect longer and more thorough screening procedures. Currently, about 81% of flyers nationwide are compliant with the new ID standards, although some states, including Alabama and North Carolina, report lower rates of adoption.

Originally mandated under a 2005 law aimed at enhancing national security, the REAL ID requirement has faced multiple delays over the years. Now in full effect just ahead of the summer travel rush, officials are reminding passengers that alternative federally accepted IDs—such as U.S. passports and military identification cards—remain valid for air travel. With high demand continuing at DMV offices in many states, travelers are advised to plan early to avoid last-minute hassles.