US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 32 — SPECIAL EQUIPMENT, MACHINERY, AND HULL REQUIREMENTSSubpart 32.20—Equipment Installations32.20-546 C.F.R. § 32.20-5Pressure vacuum relief valves—TB/ALL.Last amended: 2016Year: 2026Length: 36 wordsOfficial source Cite as 46 C.F.R. § 32.20-5 (2026)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.Previous46 C.F.R. § 32.20-1Next46 C.F.R. § 32.20-10