46 C.F.R. § 154.665 Welding procedures.
Title 46 - Shipping
Welding procedure tests for cargo tanks for a design temperature colder than 0 °C (32 °F), process pressure vessels, and piping must meet §54.05–15 and Subpart 57.03 of this chapter.
Title 46: Shipping
PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
Subpart C—Design, Construction and Equipment
Construction
§ 154.665 Welding procedures.

