A TWIC card, or Transportation Worker Identification Credential, is a federally issued biometric identification card required for workers who need unescorted access to secure areas of U.S. maritime facilities and vessels. It is mandated by the Maritime Transportation Security Act (MTSA) of 2002 and administered by the Transportation Security Administration (TSA) in conjunction with the U.S. Coast Guard

. The TWIC card contains biometric data such as fingerprints and a digital photograph, stored on a computer chip embedded in the card, which helps verify the identity of the holder. It also includes a magnetic strip and barcode for alternative reading methods. The card grants security clearance specifically for secure maritime facilities and vessels but not for other government- protected facilities

. Workers who typically need a TWIC card include truck drivers accessing ports, maritime security personnel, Coast Guard employees, and other transportation workers requiring access to secure maritime locations. To obtain a TWIC card, applicants must pass a security threat assessment, provide proof of identity and citizenship or lawful status, and undergo fingerprinting and background checks

. The card is valid for five years, with fees for initial application and renewal. It enables authorized personnel to enter secure maritime areas without escort, facilitating their work in transportation and port operations

. In summary, a TWIC card is a secure, biometric ID credential essential for workers needing access to secure maritime ports and vessels in the United States