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Transportation Security Administration

Do I present my common access card at the checkpoint to access the TSA Pre✓® lane?

No. All members of the U.S. Armed Forces must include their DoD ID number in the known traveler number field when making flight reservations and a TSA Pre✓® indicator must be visible on your boarding pass. The airlines will print a TSA Pre✓® indicator (such as TSAPRECHK, TSA PRE, or TSA Pre✓®) on boarding passes to help you recognize when you are eligible for TSA Pre✓® on your flight.

You cannot access the TSA Pre✓® lane by presenting your CAC or other documentation.