FMSCA Regulation 393

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 reflex reflectors.
393.27	[Reserved]
393.28	Wiring systems.
393.29	[Reserved]
393.30	Battery 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
393.60	Glazing in specified openings.
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?
393.116	What are the rules for securing logs?
49 CFR 393 Subpart I .116 -.136	Specific securement requirements by commodity type
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.