Part 393 — Parts and Accessories Necessary for Safe Operation
Subpart A — General
Subpart B — Lamps, Reflective Devices, and Electrical Wiring
- § 393.9— Lamps operable, prohibition of obstructions of lamps and reflectors.
- § 393.11— Lamps and reflective devices.
- § 393.13— Retroreflective sheeting and reflex reflectors, requirements for semitrailers and trailers manufactured before December 1, 1993.
- § 393.17— Lamps and reflectors—combinations in driveaway-towaway operation.
- § 393.19— Hazard warning signals.
- § 393.22— Combination of lighting devices and reflectors.
- § 393.23— Power supply for lamps.
- § 393.24— Requirements for head lamps, auxiliary driving lamps and front fog lamps.
- § 393.25— Requirements for lamps other than head lamps.
- § 393.26— Requirements for reflectors.
- § 393.28— Wiring systems.
- § 393.30— Battery installation.
Subpart C — Brakes
- § 393.40— Required brake systems.
- § 393.41— Parking brake system.
- § 393.42— Brakes required on all wheels.
- § 393.43— Breakaway and emergency braking.
- § 393.44— Front brake lines, protection.
- § 393.45— Brake tubing and hoses; hose assemblies and end fittings.
- § 393.47— Brake actuators, slack adjusters, linings/pads and drums/rotors.
- § 393.48— Brakes to be operative.
- § 393.49— Control valves for brakes.
- § 393.50— Reservoirs required.
- § 393.51— Warning signals, air pressure and vacuum gauges.
- § 393.52— Brake performance.
- § 393.53— Automatic brake adjusters and brake adjustment indicators.
- § 393.55— Antilock brake systems.
Subpart D — Glazing and Window Construction
Subpart E — Fuel Systems
Subpart F — Coupling Devices and Towing Methods
Subpart G — Miscellaneous Parts and Accessories
- § 393.75— Tires.
- § 393.76— Sleeper berths.
- § 393.77— Heaters.
- § 393.78— Windshield wiping and washing systems.
- § 393.79— Windshield defrosting and defogging systems.
- § 393.80— Rear-vision mirrors.
- § 393.81— Horn.
- § 393.82— Speedometer.
- § 393.83— Exhaust systems.
- § 393.84— Floors.
- § 393.86— Rear impact guards and rear end protection.
- § 393.87— Warning flags on projecting loads.
- § 393.88— Television receivers.
- § 393.89— Buses, driveshaft protection.
- § 393.90— Buses, standee line or bar.
- § 393.91— Buses, aisle seats prohibited.
- § 393.93— Seats, seat belt assemblies, and seat belt assembly anchorages.
- § 393.94— Interior noise levels in power units.
Subpart H — Emergency Equipment
Subpart I — Protection Against Shifting and Falling Cargo
- § 393.100— Applicability and general requirements of cargo securement standards.
- § 393.102— Minimum performance criteria for cargo securement devices and systems.
- § 393.104— Standards for cargo securement devices and systems.
- § 393.106— General requirements for securing articles of cargo.
- § 393.108— Determining the working load limit of a tiedown or the load restraining value of a friction mat.
- § 393.110— Additional requirements for determining the minimum number of tiedowns.
- § 393.112— Adjustability of tiedowns.
- § 393.114— Requirements for front end structures used as part of a cargo securement system.
- § 393.116— Specific securement requirements for logs.
- § 393.118— Specific securement requirements for dressed lumber and similar building products.
- § 393.120— Specific securement requirements for metal coils.
- § 393.122— Specific securement requirements for paper rolls.
- § 393.124— Specific securement requirements for concrete pipe.
- § 393.126— Specific securement requirements for intermodal containers.
- § 393.128— Specific securement requirements for automobiles, light trucks, and vans.
- § 393.130— Specific securement requirements for heavy vehicles, equipment, and machinery.
- § 393.132— Specific securement requirements for flattened or crushed vehicles.
- § 393.134— Specific securement requirements for roll-on/roll-off and hook lift containers.
- § 393.136— Specific securement requirements for large boulders.