46 CFR § 10.207 - Identification number.

§ 10.207 Identification number.

For recordkeeping purposes only, a mariner's official MMC identification number is the individual's social security number. However, a unique serial number, called the mariner reference number, and not the social security number, will appear on the credential.

[USCG–2006–24371, 74 FR 11216, Mar. 16, 2009, as amended by USCG–2004–17914, 78 FR 77888, Dec. 24, 2013]