46 C.F.R. § 32.20-5 Pressure vacuum relief valves—TB/ALL.
Title 46 - Shipping
The pressure vacuum relief valve shall be of a type and size approved by the Commandant for the purpose intended. For specifications and procedures re approval, see subpart 162.017 of subchapter Q (Specifications) of this chapter.
Title 46: Shipping
PART 32—SPECIAL EQUIPMENT, MACHINERY, AND HULL REQUIREMENTS
Subpart 32.20—Equipment Installations
§ 32.20-5 Pressure vacuum relief valves—TB/ALL.
