Do Merchant Marine Academy cadets receive free TSA PreCheck Benefits?

Yes, U.S. citizens and/or lawful permanent resident cadets and students of the U.S. Merchant Marine Academy and six State Maritime Academies are eligible to receive free TSA PreCheck benefits through the Transportation Worker Identification Credential (TWIC) program.  Students enrolled at these academies are eligible to enroll for TWIC, and most U.S. Merchant Mariners are required to maintain a valid TWIC to obtain their Merchant Mariner Credential. When making an airline reservation, enter the Credential Identification Number (CIN) which is the eight-digit number printed under the bottom left of the barcode on the back of the TWIC® card in the Known Traveler Number (KTN) field. For cardholders with the newest version of the TWIC card, the CIN is also embossed on the front of the card.