46 C.F.R. § 107.258
(a) The Coast Guard may accept current certificates issued by approved organizations as evidence of condition and suitability of cranes. The following organizations are approved by the Coast Guard as crane certifying authorities:
(b) Crane certification must be based upon—
[CGD 73-251, 43 FR 56802, Dec. 4, 1978, as amended by CGD 96-041, 61 FR 50730, Sept. 27, 1996; USCG-2000-7790, 65 FR 58461, Sept. 29, 2000; USCG-2007-29018, 72 FR 53966, Sept. 21, 2007; USCG-2008-0906, 73 FR 56510, Sept. 29, 2008]