46 C.F.R. § 10.497 Mate (OSV).
Title 46 - Shipping
(a) Except as provided by paragraph (b) of this section, to qualify for a license as Mate (OSV), an applicant shall present evidence that he or she meets the appropriate requirements of STCW Regulation II/1. (b) The OCMI may exempt an applicant from meeting any requirement under STCW Regulation II/1 that the OCMI determines to be inappropriate or unnecessary for service on an OSV, or that the applicant meets under the equivalency provisions of Article IX of STCW. [CGD 95–062, 62 FR 34532, June 26, 1997]
Title 46: Shipping
PART 10—LICENSING OF MARITIME PERSONNEL
Subpart D—Professional Requirements for Deck Officers' Licenses
§ 10.497 Mate (OSV).