{"data":{"id":"us/46-cfr-148.135","jurisdiction":"us","citation":"46 CFR 148.135","heading":"Stowage and segregation for materials of Class 4.3.","body":"(a) Class 4.3 materials listed in Table 148.10 of this part which, in contact with water, emit flammable gases, must—\n(1) Be kept as cool and dry as practical before loading;\n(2) Not be loaded or transferred between vessels during periods of rain or snow;\n(3) Be stowed separate from foodstuffs and all Class 8 liquids; and\n(4) Be stowed in a mechanically ventilated hold. Exhaust gases must not penetrate into accommodation, work or control spaces. Unmanned barges that have adequate natural ventilation need not have mechanical ventilation.\n(b) The bulkhead between a hold containing a Class 4.3 material and incompatible materials must have cable and conduit penetrations sealed against the passage of gas and vapor.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER N—DANGEROUS CARGOES","PART 148—CARRIAGE OF BULK SOLID MATERIALS THAT REQUIRE SPECIAL HANDLING","Subpart D—Stowage and Segregation"],"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":"85e8072af2afed50dbaa62b3acdc73b4b752a9288d671ef71e890bf454dd7919","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-148.130","next":"us/46-cfr-148.140"},"notice":"GroundRules: Original legal text. Not legal advice."}