Subpart A—General11Subpart B—General Operating Requirements11Subpart C—General Handling and Stowage12Subpart D—General Segregation Requirements3Subpart E—Special Requirements for Transport Vehicles Loaded With Hazardous Materials and Transported on Board Ferry Vessels6Subpart F—Special Requirements for Barges5Subpart G—Detailed Requirements for Class 1 (Explosive) Materials37Subpart H—Detailed Requirements for Class 2 (Compressed Gas) Materials6Subpart I—Detailed Requirements for Class 3 (Flammable) and Combustible Liquid Materials5Subpart J—Detailed Requirements for Class 4 (Flammable Solids), Class 5 (Oxidizers and Organic Peroxides), and Division 1.5 Materials4Subpart L—Detailed Requirements for Division 2.3 (Poisonous Gas) and Division 6.1 (Poisonous) Materials2Subpart M—Detailed Requirements for Radioactive Materials6Subpart N—Detailed Requirements for Class 8 (Corrosive Materials) Materials2Subpart O—Detailed Requirements for Cotton and Vegetable Fibers, Motor Vehicles, Polymeric Beads, and Plastic Molding Compounds6
Regulationcurrent
49 CFR 176.180
Watchkeeping.
Current as of 2026-08-18 Government source
eCFR editorial compilationAuthoritative but unofficial
Whenever Class 1 (explosive) materials are on board a vessel in port, there must be sufficient crew on board to maintain a proper watch and to operate the propulsion and firefighting equipment in case of an emergency.#
