{"data":{"id":"us/46-cfr-148.280","jurisdiction":"us","citation":"46 CFR 148.280","heading":"Magnesia, unslaked (lightburned magnesia, calcined magnesite, caustic calcined magnesite).","body":"(a) This part does not apply to the transport of natural magnesite, magnesium carbonate, or magnesia clinkers.\n(b) When transported by barge, unslaked magnesia must be carried in an unmanned, all-steel, double-hulled barge equipped with weathertight hatches or covers. The barge may not carry any other cargo while unslaked magnesia is on board.\n(c) The shipping paper requirements in § 148.60 of this part and the dangerous cargo manifest requirements in § 148.70 of this part do not apply to unslaked magnesia transported under the requirements of paragraph (b) of this section.","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 E—Special Requirements for Certain Materials"],"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":"f02459be3ae5c80e908fba25bcf323bb9783ef9d12a767177f148ecbb772813c","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-148.275","next":"us/46-cfr-148.285"},"notice":"GroundRules: Original legal text. Not legal advice."}