Code of Federal Regulations > Title 49 > Chapter I > Part 178 > Subpart J - Subpart J—Specifications for Containers for Motor Vehicle Transportation

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

§ 178.318 - Specification MC 201; container for detonators and percussion caps.

§ 178.318-1 - Scope.

§ 178.318-2 - Container.

§ 178.318-3 - Marking.

§ 178.320 - General requirements applicable to all DOT specification cargo tank motor vehicles.

§ 178.337 - Specification MC 331; cargo tank motor vehicle primarily for transportation of compressed gases as defined in subpart G of part 173 of this subchapter.

§ 178.337-1 - General requirements.

§ 178.337-2 - Material.

§ 178.337-3 - Structural integrity.

§ 178.337-4 - Joints.

§ 178.337-5 - Bulkheads, baffles and ring stiffeners.

§ 178.337-6 - Closure for manhole.

§ 178.337-7 - Overturn protection.

§ 178.337-8 - Openings, inlets, and outlets.

§ 178.337-9 - Pressure relief devices, piping, valves, hoses, and fittings.

§ 178.337-10 - Accident damage protection.

§ 178.337-11 - Emergency discharge control.

§ 178.337-12 - [Reserved]

§ 178.337-13 - Supporting and anchoring.

§ 178.337-14 - Gauging devices.

§ 178.337-15 - Pumps and compressors.

§ 178.337-16 - Testing.

§ 178.337-17 - Marking.

§ 178.337-18 - Certification.

§ 178.338 - Specification MC-338; insulated cargo tank motor vehicle.

§ 178.338-1 - General requirements.

§ 178.338-2 - Material.

§ 178.338-3 - Structural integrity.

§ 178.338-4 - Joints.

§ 178.338-5 - Stiffening rings.

§ 178.338-6 - Manholes.

§ 178.338-7 - Openings.

§ 178.338-8 - Pressure relief devices, piping, valves, and fittings.

§ 178.338-9 - Holding time.

§ 178.338-10 - Accident damage protection.

§ 178.338-11 - Discharge control devices.

§ 178.338-12 - Shear section.

§ 178.338-13 - Supporting and anchoring.

§ 178.338-14 - Gauging devices.

§ 178.338-15 - Cleanliness.

§ 178.338-16 - Inspection and testing.

§ 178.338-17 - Pumps and compressors.

§ 178.338-18 - Marking.

§ 178.338-19 - Certification.

§§ 178.340-178.343 - §[Reserved]

§ 178.345 - General design and construction requirements applicable to Specification DOT 406 (DOT 407 (and DOT 412 (cargo tank motor vehicles.

§ 178.345-1 - General requirements.

§ 178.345-2 - Material and material thickness.

§ 178.345-3 - Structural integrity.

§ 178.345-4 - Joints.

§ 178.345-5 - Manhole assemblies.

§ 178.345-6 - Supports and anchoring.

§ 178.345-7 - Circumferential reinforcements.

§ 178.345-8 - Accident damage protection.

§ 178.345-9 - Pumps, piping, hoses and connections.

§ 178.345-10 - Pressure relief.

§ 178.345-11 - Tank outlets.

§ 178.345-12 - Gauging devices.

§ 178.345-13 - Pressure and leakage tests.

§ 178.345-14 - Marking.

§ 178.345-15 - Certification.

§ 178.346 - Specification DOT 406; cargo tank motor vehicle.

§ 178.346-1 - General requirements.

§ 178.346-2 - Material and thickness of material.

§ 178.346-3 - Pressure relief.

§ 178.346-4 - Outlets.

§ 178.346-5 - Pressure and leakage tests.

§ 178.347 - Specification DOT 407; cargo tank motor vehicle.

§ 178.347-1 - General requirements.

§ 178.347-2 - Material and thickness of material.

§ 178.347-3 - Manhole assemblies.

§ 178.347-4 - Pressure relief.

§ 178.347-5 - Pressure and leakage test.

§ 178.348 - Specification DOT 412; cargo tank motor vehicle.

§ 178.348-1 - General requirements.

§ 178.348-2 - Material and thickness of material.

§ 178.348-3 - Pumps, piping, hoses and connections.

§ 178.348-4 - Pressure relief.

§ 178.348-5 - Pressure and leakage test.