Bill Would Reform Enrollment Process in Flawed TWIC Program. U.S. Senator Kelly Ayotte (R-NH) introduced legislation today that would reform the burdensome enrollment process of the Department of Homeland Security’s Transportation Worker Identification Card (TWIC) program, which provides biometric identification cards to mariners and other transportation workers in order to allow them unescorted access to secure areas of ports, vessels, and other maritime facilities. Under current rules, merchant mariners, port employees, truck drivers, and other workers are required to make repeated visits to a TWIC enrollment center in order to apply for and obtain credentials.