CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER B—MERCHANT MARINE OFFICERS AND SEAMEN (parts 10 to 16) > PART 12—REQUIREMENTS FOR RATING ENDORSEMENTS > SUBPART 12.05—Able Seamen (§12.05-1 to §12.05-11) > 12.05-1—Certification required.

12.05-1—Certification required.

(a) Every person serving under the authority of a rating endorsement as able seaman on any United States vessel requiring certificated able seamen, before signing articles of agreement, shall present to the master, his or her certificate as able seaman (issued in the form of an MMC or MMD endorsement).
(b) No MMD or MMC endorsed as able seaman is required of any person employed on any tug or towboat on the bays and sounds connected directly with the seas, or on any unrigged vessel except seagoing barges or tank barges.
(c) The following categories of able seaman are established:
(1) Able Seaman—Any Waters, Unlimited.
(2) Able Seaman—Limited.
(3) Able Seaman—Special.
(4) Able Seaman—Special (OSV).
[CGD 80-131, 45 FR 69240, Oct. 20, 1980, as amended by USCG-2006-24371, 74 FR 11256, Mar. 16, 2009]