46 C.F.R. § 182.715 Piping subject to more than 1,034 kPa (150 psig) in non-vital systems.
Title 46 - Shipping
Piping subject to more than 1,034 kPa (150 psig) in a non-vital system must be designed, fabricated, and inspected in accordance with the principles of ANSI B 31.1, or other industry standard acceptable to the Commandant.
Title 46: Shipping
PART 182—MACHINERY INSTALLATION
Subpart G—Piping Systems
§ 182.715 Piping subject to more than 1,034 kPa (150 psig) in non-vital systems.

