{"data":{"id":"us/46-cfr-153.368","jurisdiction":"us","citation":"46 CFR 153.368","heading":"Pressure-vacuum valves.","body":"(a) The pressure side of a required pressure-vacuum relief valve must begin to open only at a pressure exceeding 3.5 kPa gauge (approx. 0.5 psig).\n(b) A pressure-vacuum relief valve must meet the requirements of Subpart 162.017 of this chapter.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES","PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS","Subpart B—Design and Equipment"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"be5567b743fb35d45eec642c1ec7925d16011eff4b2271f4cedc2414cf35d33f","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-153.365","next":"us/46-cfr-153.370"},"notice":"GroundRules: Original legal text. Not legal advice."}