46 C.F.R. § 90.20-1 Marine engineering details.
Title 46 - Shipping
(a) All marine engineering details such as piping, valves, fittings, boilers, pressure vessels, etc., and their appurtenances installed on the vessel, shall be designed, constructed, and installed in accordance with the provisions of subchapter F (Marine Engineering) of this chapter.
Title 46: Shipping
PART 90—GENERAL PROVISIONS
Subpart 90.20—General Marine Engineering Requirements
§ 90.20-1 Marine engineering details.