46 CFR § 109.439
Crane certificates
April 15, 2021
The master or person in charge shall insure that the following certificates and records for each crane are maintained on the unit:
(a) Each certificate issued by a crane certifying authority.
(b) Each record and original certificate, or certified copy of a certificate, or manufacturers or testing laboratories, companies or organizations for—
(1) Loose gear;
(2) Wire rope; and
(3) The annealing of wrought iron gear.