{"data":{"id":"us/46-cfr-154.405","jurisdiction":"us","citation":"46 CFR 154.405","heading":"Design vapor pressure (Po) of a cargo tank.","body":"(a) The design vapor pressure (Po) of a cargo tank must be equal to or greater than the MARVS.\n(b) The Po of a cargo tank must be equal to or greater than the vapor pressure of the cargo at 45 °C (113 °F) if:\n(1) The cargo tank has no temperature control for the cargo; and\n(2) The vapor pressure of the cargo results solely from ambient temperature.\n(c) The Po of a cargo tank may be exceeded under harbor conditions if specially approved by the Commandant (CG-ENG).","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES","PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES","Subpart C—Design, Construction 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":"7cbc5d47fbc3bbe20d295f88dd6febb723136a9b36f28153bb7131fd5b74b412","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-154.401","next":"us/46-cfr-154.406"},"notice":"GroundRules: Original legal text. Not legal advice."}