The TWIC program, administered jointly by the Transportation Security Administration (TSA) and the U.S. Coast Guard, provides biometric identification cards to workers requiring unescorted access to secure areas of ports and vessels. In its report, Transportation Worker Identification Credential: Actions Needed to Address Maritime Security Risks (GAO-26-107521), the watchdog issued seven recommendations to improve oversight, all of which the Department of Homeland Security accepted. GAO also found shortcomings in how the Coast Guard oversees compliance with TWIC requirements at roughly 3,400 Maritime Transportation Security Act-regulated facilities nationwide. GAO also criticized the Coast Guard for not routinely sharing inspection trends with field inspectors, despite collecting detailed data on recurring compliance problems. Broader implementation at additional high-risk facilities is not scheduled until 2029 as the Coast Guard continues revising its rulemaking.