{"data":{"id":"us/46-cfr-153.404","jurisdiction":"us","citation":"46 CFR 153.404","heading":"Standards for containment systems having required closed gauges.","body":"When Table 1 requires a cargo's containment system to have a closed gauge, the containment system must have the following:\n(a) A permanently installed closed gauging system.\n(b) A vapor return connection.\n(c) The high level alarm described in § 153.409.\n(d) Either a closed cargo sampling system or a cargo sampling arrangement allowing the retrieval of a sample through an orifice not exceeding:\n(1) 0.635 cm (approx. 0.25 in.) diameter when the cargo's vapor pressure is 28 kPa gauge (approx. 4 psig) or less; or\n(2) 0.140 cm (approx. 0.055 in.) diameter when the cargo's vapor pressure exceeds 28 kPa (approx. 4 psig).","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":"05d037da0836f8c1cec65a49a07a784483302e39d59b90fd0f2bb0d185aa63fd","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-153.400","next":"us/46-cfr-153.406"},"notice":"GroundRules: Original legal text. Not legal advice."}