If you're a U.S. citizen, the ID you present must be federal- or state-issued. It must contain a photograph and include your name, gender, date of birth and the date of expiration. It must also have some form of tamper-proof feature. If you occasionally travel abroad, your US passport or passport card is acceptable as a form of ID for domestic flights at the country's airport security checkpoints.
If you don't have a passport, there are several other forms of ID you can use when flying within the U.S., including any photo-identity card issued by your state. Your driver's license is acceptable, as is a Department of Homeland Security (DHS) Enhanced Driver's License. Security personnel also accept "Trusted Traveler" cards issued by the DHS such as NEXUS (the northern border program), SENTRI (the southern border program) or FAST (Free and Secure Trade), the commercial equivalent for truck drivers. A member of the U.S. military will be allowed to proceed by showing his military ID. This applies to a person on active duty, retired, his dependents and Department of Defense civilian workers.
A DHS-designated enhanced driver's license or driver's license is accepted, along with other state photo-identity cards. Native Americans can use their tribal photo ID. Airline and airport workers can use their employment ID.
Other documents accepted at airport checkpoints are the Permanent Resident Card and the Border Crossing Card. A tribal photo ID held by native Americans is also valid as are employment ID cards used by airline and airport workers. Canadian citizens can present either their provincial driver's license or an Indian and Northern Affairs Canada Card. A Transportation Worker Identification Credential (TWIC) will also allow its holder access to her flight.
Non-U.S. citizens traveling on flights within the country must show either their passport or a document issued by the U.S. government, such as a Permanent Resident Card. Canadian citizens can present either their provincial driver's license or an Indian and Northern Affairs Canada card.
