- § 393.1
Scope of the rules in this part.
- § 393.3
Additional equipment and accessories.
- § 393.5
- § 393.7
Matter incorporated by reference.
- § 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
- § 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
- § 393.28
- § 393.29
- § 393.30
- §§ 393.31-393.33
- § 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
- § 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
- § 393.51
Warning signals, air pressure and vacuum gauges.
- § 393.52
- § 393.53
Automatic brake adjusters and brake adjustment indicators.
- § 393.55
Antilock brake systems.
- § 393.60
Glazing in specified openings.
- § 393.61
Truck and truck tractor window construction.
- § 393.62
Emergency exits for buses.
- § 393.63
- § 393.65
All fuel systems.
- § 393.67
Liquid fuel tanks.
- § 393.68
Compressed natural gas fuel containers.
- § 393.69
Liquefied petroleum gas systems.
- § 393.70
Coupling devices and towing methods, except for driveaway-towaway operations.
- § 393.71
Coupling devices and towing methods, driveaway-towaway operations.
- § 393.75
- § 393.76
- § 393.77
- § 393.78
Windshield wiping and washing systems.
- § 393.79
Windshield defrosting and defogging systems.
- § 393.80
- § 393.81
- § 393.82
- § 393.83
- § 393.84
- § 393.85
- § 393.86
Rear impact guards and rear end protection.
- § 393.87
Warning flags on projecting loads.
- § 393.88
- § 393.89
Buses, driveshaft protection.
- § 393.90
Buses, standee line or bar.
- § 393.91
Buses, aisle seats prohibited.
- § 393.92
- § 393.93
Seats, seat belt assemblies, and seat belt assembly anchorages.
- § 393.94
Interior noise levels in power units.
- § 393.95
Emergency equipment on all power units.
- § 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?
- § 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?
- § 393.201
- § 393.203
Cab and body components.
- § 393.205
- § 393.207
- § 393.209
Steering wheel systems.
PARTS AND ACCESSORIES NECESSARY FOR SAFE OPERATION
§ 393.104: What standards must cargo securement devices and systems meet in order to satisfy the requirements of this subpart?
(a) General. All devices and systems used to secure cargo to or within a vehicle must be capable of meeting the requirements of § 393.102.
(b) Prohibition on the use of damaged securement devices. All tiedowns, cargo securement systems, parts and components used to secure cargo must be in proper working order when used to perform that function with no damaged or weakened components, such as, but not limited to, cracks or cuts that will adversely affect their performance for cargo securement purposes, including reducing the working load limit.
(c) Vehicle structures and anchor points. Vehicle structures, floors, walls, decks, tiedown anchor points, headerboards, bulkheads, stakes, posts, and associated mounting pockets used to contain or secure articles of cargo must be strong enough to meet the performance criteria of § 393.102, with no damaged or weakened components, such as, but not limited to, cracks or cuts that will adversely affect their performance for cargo securement purposes, including reducing the working load limit.
(d) Material for dunnage, chocks, cradles, shoring bars, blocking and bracing. Material used as dunnage or dunnage bags, chocks, cradles, shoring bars, or used for blocking and bracing, must not have damage or defects which would compromise the effectiveness of the securement system.
(e) Manufacturing standards for tiedown assemblies. Tiedown assemblies (including chains, wire rope, steel strapping, synthetic webbing, and cordage) and other attachment or fastening devices used to secure articles of cargo to, or in, commercial motor vehicles must conform to the following applicable standards:
|An assembly component of . . .||Must conform to . . .|
|(1) Steel strapping 1 2||Standard Specification for Strapping, Flat Steel and Seals, American Society for Testing and Materials (ASTM) D3953-97, February 1998. 4|
|(2) Chain||National Association of Chain Manufacturers' Welded Steel Chain Specifications, dated September 28, 2005. 4|
|(3) Webbing||Web Sling and Tiedown Association's Recommended Standard Specification for Synthetic Web Tiedowns, WSTDA-T1, 1998. 4|
|(4) Wire rope 3||Wire Rope Technical Board's Wire Rope Users Manual, 2nd Edition, November 1985. 4|
|(5) Cordage||Cordage Institute rope standard:|
|(i) PETRS-2, Polyester Fiber Rope, three-Strand and eight-Strand Constructions, January 1993; 4|
|(ii) PPRS-2, Polypropylene Fiber Rope, three-Strand and eight-Strand Constructions, August 1992; 4|
|(iii) CRS-1, Polyester/Polypropylene Composite Rope Specifications, three-Strand and eight-Strand Standard Construction, May 1979; 4|
|(iv) NRS-1, Nylon Rope Specifications, three-Strand and eight-Strand Standard Construction, May 1979; 4and|
|(v) C-1, Double Braided Nylon Rope Specifications DBN, January 1984. 4|
(f) Use of tiedowns. (1) Tiedowns and securing devices must not contain knots.
(2) If a tiedown is repaired, it must be repaired in accordance with the applicable standards in paragraph (e) of this section, or the manufacturer's instructions.
(3) Each tiedown must be attached and secured in a manner that prevents it from becoming loose, unfastening, opening or releasing while the vehicle is in transit.
(4) Edge protection must be used whenever a tiedown would be subject to abrasion or cutting at the point where it touches an article of cargo. The edge protection must resist abrasion, cutting and crushing.
Although we make every effort to assure that the information we provide is complete and accurate, it is not intended to take the place of published agency regulations. Regulations issued by the U.S. Department of Transportation and its Operating Administrations are published in the Federal Register and compiled in the U.S. Code of Federal Regulations (CFR). Copies of appropriate volumes of the CFR in book format may be purchased from the Superintendent of Documents, U.S. Government Printing Office, or examined at many libraries.
The CFR may also be viewed online at http://ECFR.gpoaccess.gov.