As of Sept. 30, 2001Chapter III, Subchapter B — Federal Motor Carrier Safety Regulations
Part 393 Parts and Accessories Necessary for Safe Operation
76 sections · What changed since this date
Subpart A—General
Subpart B—Lighting Devices, Reflectors, and Electrical Equipment
- § 393.9Lamps operable.2 versions
- § 393.11Lighting devices and reflectors.11 versions
- § 393.13Retroreflective sheeting and reflex reflectors, requirements for semitrailers and trailers manufactured before December 1, 1993.3 versions
- § 393.17Lamps and reflectors—combinations in driveaway-towaway operation.4 versions
- § 393.19Requirements for turn signaling systems.2 versions
- § 393.20Clearance lamps to indicate extreme width and height.2 versions
- § 393.22Combination of lighting devices and reflectors.
- § 393.23Lighting devices to be electric.2 versions
- § 393.24Requirements for head lamps and auxiliary road lighting lamps.2 versions
- § 393.25Requirements for lamps other than head lamps.2 versions
- § 393.26Requirements for reflectors.2 versions
- § 393.27Wiring specifications.2 versions
- § 393.28Wiring to be protected.2 versions
- § 393.29Grounds.2 versions
- § 393.30Battery installation.
- § 393.31Overload protective devices.
- § 393.32Detachable electrical connections.
- § 393.33Wiring, installation.
Subpart C—Brakes
- § 393.40Required brake systems.4 versions
- § 393.41Parking brake system.2 versions
- § 393.42Brakes required on all wheels.6 versions
- § 393.43Breakaway and emergency braking.2 versions
- § 393.44Front brake lines, protection.
- § 393.45Brake tubing and hose, adequacy.3 versions
- § 393.46Brake tubing and hose connections.2 versions
- § 393.47Brake lining.7 versions
- § 393.48Brakes to be operative.4 versions
- § 393.49Single valve to operate all brakes.3 versions
- § 393.50Reservoirs required.2 versions
- § 393.51Warning devices and gauges.2 versions
- § 393.52Brake performance.6 versions
- § 393.53Automatic brake adjusters and brake adjustment indicators.2 versions
- § 393.55Antilock brake systems.3 versions
Subpart D—Glazing and Window Construction
Subpart E—Fuel Systems
Subpart F—Coupling Devices and Towing Methods
Subpart G—Miscellaneous Parts and Accessories
- § 393.75Tires.9 versions
- § 393.76Sleeper berths.
- § 393.77Heaters.4 versions
- § 393.78Windshield wipers.2 versions
- § 393.79Defrosting device.2 versions
- § 393.80Rear-vision mirrors.3 versions
- § 393.81Horn.2 versions
- § 393.82Speedometer.2 versions
- § 393.83Exhaust systems.
- § 393.84Floors.
- § 393.85[Reserved]
- § 393.86Rear impact guards and rear end protection.8 versions
- § 393.87Flags on projecting loads.2 versions
- § 393.88Television receivers.
- § 393.89Buses, driveshaft protection.
- § 393.90Buses, standee line or bar.2 versions
- § 393.91Buses, aisle seats prohibited.
- § 393.92Buses, marking emergency doors.2 versions
- § 393.93Seats, seat belt assemblies, and seat belt assembly anchorages.2 versions
- § 393.94Vehicle interior noise levels.3 versions