Primary List  

•  Unexpired U.S. passport or passport card

•  Unexpired Merchant Mariner Document (MMD)

•  Unexpired Free and Secure Trade (FAST) Card

•  Unexpired NEXUS Card

•  Unexpired Secure Electronic Network for Travelers Rapid Inspection (SENTRI) Card

•  Unexpired U.S. Enhanced driver license (EDL)

•  Unexpired Enhanced Tribal Card (ETC)

•  Unexpired Permanent Resident Card (I-551)

•  Unexpired Foreign Passport AND Immigrant visa with I-551 annotation "Upon Endorsement Serves as Temporary I-551 Evidencing Permanent Residence of 1-Year"

•  Unexpired Re-entry Permit (I-327)

Secondary List 

•  U.S. Certificate of Citizenship (N-560 or 561)

•  U.S. Certificate of Naturalization (N-550 or 570)

•  U.S. Citizen Identification Card (I-179 or I-197)

•  Expired U.S. passport (within 12 months of expiration)

•  Consular Report of Birth Abroad (FS-240)

•  Certification of Birth of Abroad (DS-1350 or FS-545)

•  Unexpired driver license issued by a State or outlying possession of the U.S.

•  Unexpired ID card issued by a State or outlying possession of the U.S. Must include a State or State agency seal or logo (such as a State University ID)

•  Original or certified copy of birth certificate issued by a State, county, municipal authority, or outlying possession of the U.S. bearing an official seal

•  Voter's registration card

•  U.S. military ID card or U.S. retired military ID

•  U.S. military dependent's card

•  Native American tribal document (with photo)

•  U.S. social security card

•  U.S. military discharge papers (DD-214)

•  Department of Transportation (DOT) medical card

•  U.S. civil marriage certificate

•  Unexpired Merchant Mariner License (MML) bearing an official seal, or a certified copy

•  Unexpired Department of Homeland Security (DHS) / Transportation Security Administration (TSA) Transportation Worker Identification Credential (TWIC)

•  Unexpired Merchant Mariner Credential