information on alternate technologies that could be used. See also Maritime Transportation Security Act of 2002 Merchant Mariner Credential SAFE Port Act Common Access Card - A similar card for the US DOD Notes References External links TWIC Program website by TSA Pre-enrollment page TWIC Implementation in the Maritime Sector Final Rule, January 25, 2007 U.S. Coast Guard's NVIC 03-07, "Guidance for the implementation of the TWIC Program in the maritime sector" Threat, Risk, and Vulnerability: The Future of the TWIC Program: Hearing before the Subcommittee on Border and Maritime Security of the Committee on Homeland Security, House of Representatives, One Hundred Thirteenth Congress, First Session, June 18, 2013 Law enforcement in the United States United States Merchant Marine Identity documents of the United States United States Coast Guard Transportation Security Administration Transportation in the United States 2002 establishments in the United States Aftermath of the September 11 attacks