46 CFR § 182.715
Piping subject to more than 1,034 kPa (150 psig) in non-vital systems
April 15, 2021
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.