{"data":{"id":"us/46-cfr-98.30-6","jurisdiction":"us","citation":"46 CFR 98.30-6","heading":"-6 Vessels carrying IBCs.","body":"Intermediate Bulk Containers (IBCs) with a classification of 31A may be used on a vessel to which this part applies and must meet at a minimum the following constructional requirements:\n(a) The shell thickness must be a minimum 6.36 mm (0.25 inches) in reference steel.\n(b) There must be a self-closing relief valve set to open at no less than 5 psig.\n(c) Closures used on fill openings, in excess of 20 square inches, must be equipped with a device to prevent them from fully opening without first relieving internal pressure.\n(d) All venting requirements must be followed in accordance with 49 CFR 178.345-10, Table 1.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER I—CARGO AND MISCELLANEOUS VESSELS","PART 98—SPECIAL CONSTRUCTION, ARRANGEMENT, AND OTHER PROVISIONS FOR CERTAIN DANGEROUS CARGOES IN BULK","Subpart 98.30—Portable Tanks and Intermediate Bulk Containers"],"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":"66594ce90bc83d446e1783dc953ecbb93fe582738e055d2940589398b2a55203","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-98.30-5","next":"us/46-cfr-98.30-7"},"notice":"GroundRules: Original legal text. Not legal advice."}