§ 10.207 Identification number.

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Title 46—Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER B—MERCHANT MARINE OFFICERS AND SEAMEN > PART 10—MERCHANT MARINER CREDENTIAL > Subpart B—General Requirements for All Merchant Mariner Credentials

This text was captured on Sep 22, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

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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]

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