OUPV & 100-Ton Master · Credentials

All mariners working on commercial vessels in the U.S. must hold, in addition to any license/endorsement, a:

Explanation

A TWIC, issued by TSA after a security threat assessment, is required to obtain a Merchant Mariner Credential and to access secure areas of regulated facilities and vessels. The MMC and TWIC are separate but linked requirements.

Authority: 46 CFR Part 10; 49 CFR Part 1572 (TWIC)

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