MozaicID’s Transportation Worker Identification Credential (TWIC) Mobile Biometric Reader fully complies with the U.S. Coast Guard TWIC Reader Rule. MozaicID TWIC Mobile Biometric Reader meets full compliance with U.S. Coast Guard TWIC Reader Rule. The U.S. Coast Guard TWIC Reader Rule December 31, 2020 enforcement date applies to facilities that receive vessels certificated to carry more than 1,000 passengers and vessels.