The Transportation Security Administration (TSA) began enforcing this new ID law for air travel at security screening checkpoints on May 7, 2025. If you try to go through security without a REAL ID-compliant form of identification, you may still be allowed to fly ─ but there’s no guarantee. At the very least, TSA officers will give you a warning letter and clear verbal direction to obtain proper identification as soon as possible. Read through the TSA’s info on acceptable identification. Eventually, there will be no exceptions to this requirement.