46 C.F.R. § 109.521 Cranes: General.
Title 46 - Shipping
The master or person in charge shall ensure that each crane is operated and maintained in accordance with the API Recommended Practice for Operation and Maintenance of Offshore Cranes, API RP 2D, First Edition (Oct. 1972) with supplement 1.
Title 46: Shipping
PART 109—OPERATIONS
Subpart F—Cranes
§ 109.521 Cranes: General.