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Code of Federal Regulations (Last Updated: October 10, 2024) |
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Title 49 - Transportation |
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Subtitle B - Other Regulations Relating to Transportation |
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Chapter III - Federal Motor Carrier Safety Administration, Department of Transportation |
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SubChapter B - Federal Motor Carrier Safety Regulations |
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Part 393 - Parts and Accessories Necessary for Safe Operation |
| Subpart A - General |
| § 393.1 - Scope of the rules in this part. |
| § 393.3 - Additional equipment and accessories. |
| § 393.5 - Definitions. |
| § 393.7 - Matter incorporated by reference. |
| 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. |
| § 393.20 - [Reserved] |
| § 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. |
| § 393.27 - [Reserved] |
| § 393.28 - Wiring systems. |
| § 393.29 - [Reserved] |
| § 393.30 - Battery installation. |
| § 393.31 - Overload protective devices. |
| § 393.32 - Detachable electrical connections. |
| § 393.33 - Wiring, installation. |
| §§ 393.31--393.33 - [Reserved] |
| 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. |
| § 393.46 - [Reserved] |
| § 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 |
| § 393.61 - Truck and truck tractor window construction. |
| § 393.62 - Emergency exits for buses. |
| § 393.63 - [Reserved] |
| Subpart E - Fuel Systems |
| § 393.65 - All fuel systems. |
| § 393.67 - Liquid fuel tanks. |
| § 393.68 - Compressed natural gas fuel containers. |
| § 393.69 - Liquefied petroleum gas systems. |
| Subpart F - Coupling Devices and Towing Methods |
| § 393.70 - Coupling devices and towing methods, except for driveaway-towaway operations. |
| § 393.71 - Coupling devices and towing methods, driveaway-towaway operations. |
| 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. |
| § 393.85 - [Reserved] |
| § 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. |
| § 393.92 - [Reserved] |
| § 393.93 - Seats, seat belt assemblies, and seat belt assembly anchorages. |
| § 393.94 - Interior noise levels in power units. |
| Subpart H - Emergency Equipment |
| § 393.95 - Emergency equipment on all power units. |
| Subpart I - Protection Against Shifting and Falling Cargo |
| § 393.100 - Which types of commercial motor vehicles are subject to the cargo securement standards of this subpart, and what general requirements apply? |
| § 393.102 - What are the minimum performance criteria for cargo securement devices and systems? |
| § 393.104 - What standards must cargo securement devices and systems meet in order to satisfy the requirements of this subpart? |
| § 393.106 - What are the general requirements for securing articles of cargo? |
| § 393.108 - How is the working load limit of a tiedown, or the load restraining value of a friction mat, determined? |
| § 393.110 - What else do I have to do to determine the minimum number of tiedowns? |
| § 393.112 - Must a tiedown be adjustable? |
| § 393.114 - What are the requirements for front end structures used as part of a cargo securement system? |
| Specific Securement Requirements by Commodity Type |
| § 393.116 - What are the rules for securing logs? |
| § 393.118 - What are the rules for securing dressed lumber or similar building products? |
| § 393.120 - What are the rules for securing metal coils? |
| § 393.122 - What are the rules for securing paper rolls? |
| § 393.124 - What are the rules for securing concrete pipe? |
| § 393.126 - What are the rules for securing intermodal containers? |
| § 393.128 - What are the rules for securing automobiles, light trucks and vans? |
| § 393.130 - What are the rules for securing heavy vehicles, equipment and machinery? |
| § 393.132 - What are the rules for securing flattened or crushed vehicles? |
| § 393.134 - What are the rules for securing roll-on/roll-off or hook lift containers? |
| § 393.136 - What are the rules for securing large boulders? |
| Subpart J - Frames, Cab and Body Components, Wheels, Steering, and Suspension Systems |
| § 393.201 - Frames. |
| § 393.203 - Cab and body components. |
| § 393.205 - Wheels. |
| § 393.207 - Suspension systems. |
| § 393.209 - Steering wheel systems. |