| Part |
Regulation |
Guidance |
|
Subpart A - General
|
| 393.1 |
Scope of the rules in this part
|
|
| 393.3 |
Additional equipment and accessories
|
|
| 393.5 |
Definitions
|
|
| 393.7 |
Matters 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.
|
Yes
|
| 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
|
Yes
|
| 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.
|
Yes
|
| 393.25 |
Requirements for lamps other than head lamps
|
Yes
|
| 393.26 |
Requirements for reflex reflectors.
|
|
| 393.27 |
[Reserved]
|
|
| 393.28 |
Wiring systems.
|
Yes
|
| 393.29 |
[Reserved]
|
|
| 393.30 |
Battery installation
|
|
| 393.31 |
[Reserved]
|
Yes
|
| 393.32 |
[Reserved]
|
|
| 393.33 |
[Reserved]
|
|
|
Subpart C - Brakes
|
| 393.40 |
Required brake systems
|
Yes
|
| 393.41 |
Parking brake system
|
Yes
|
| 393.42 |
Brakes required on all wheels
|
Yes
|
| 393.43 |
Breakaway and emergency braking
|
Yes
|
| 393.44 |
Front brake lines, protection
|
Yes
|
| 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
|
Yes
|
| 393.49 |
Control valves for brakes
|
Yes
|
| 393.50 |
Reservoirs required
|
|
| 393.51 |
Warning signals, air pressure and vacuum gauges.
|
Yes
|
| 393.52 |
Brake performance
|
Yes
|
| 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
|
Yes
|
| 393.61 |
Truck and truck tractor window construction.
|
Yes
|
| 393.62 |
Emergency exits for buses.
|
Yes
|
| 393.63 |
[Reserved]
|
|
|
Subpart E - Fuel Systems
|
| 393.65 |
All fuel systems
|
Yes
|
| 393.67 |
Liquid fuel tanks
|
Yes
|
| 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 operation.
|
Yes
|
| 393.71 |
Coupling devices and towing methods, driveaway-towaway operations.
|
Yes
|
|
Subpart G - Miscellaneous Parts and Accessories
|
| 393.75 |
Tires
|
Yes
|
| 393.76 |
Sleeper berths
|
Yes
|
| 393.77 |
Heaters
|
|
| 393.78 |
Windshield wiping and washing systems.
|
Yes
|
| 393.79 |
Windshield defrosting and defogging systems.
|
|
| 393.80 |
Rear vision mirrors
|
|
| 393.81 |
Horn
|
Yes
|
| 393.82 |
Speedometer
|
Yes
|
| 393.83 |
Exhaust systems
|
Yes
|
| 393.84 |
Floors
|
|
| 393.85 |
[Reserved]
|
|
| 393.86 |
Rear impact guards and Rear end protection
|
|
| 393.87 |
Warning flags on projecting loads.
|
Yes
|
| 393.88 |
Television receivers
|
Yes
|
| 393.89 |
Buses, driveshaft protection
|
Yes
|
| 393.90 |
Buses, standee line or bar
|
|
| 393.91 |
Buses, aisle seats prohibited
|
|
| 393.92 |
[Reserved]
|
Yes
|
| 393.93 |
Seats, seat belt assemblies, and seat belt assembly anchorages
|
Yes
|
| 393.94 |
Interior noise levels in power units.
|
|
|
Subpart H - Emergency Equipment
|
| 393.95 |
Emergency equipment on all power units
|
Yes
|
|
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?
|
Yes
|
| 393.102 |
What are the minimum performance criteria for cargo securement devices and systems?
|
Yes
|
| 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?
|
Yes
|
| 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?
|
|
| 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?
|
Yes
|
| 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
|
Yes
|
| 393.203 |
Cab and body components
|
|
| 393.205 |
Wheels
|
|
| 393.207 |
Suspension systems
|
|
| 393.209 |
Steering wheel systems
|
|
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