46 CFR 10.101: Purpose.

The regulations in this part provide:

(a) A means of determining and verifying the qualifications an applicant must possess to be eligible for certification to serve on merchant vessels;

(b) A means of determining that an applicant is competent to serve under the authority of their Merchant Mariner Credential (MMC);

(c) A means of confirming that an applicant does not pose a threat to national security through the requirement to hold a Transportation Worker Identification Credential (TWIC); and

(d) A means of determining whether the applicant for an MMC is a safe and suitable person.