053-3 Wyo. Code R. § 57.14131
(a) Seat belts shall be provided and worn in haulage trucks.
(b) Seat belts shall be maintained in functional condition, and replaced when necessary to assure proper performance.
(c) Seat belts required under this section shall meet the requirements of SAE J386, "Operator Restraint Systems for Off-Road Work Machines", 1985, which is incorporated by reference in accordance with 5 U.S.C. 552(a).
(d) Publications incorporated by reference in this section have been approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a). Copies are available from the Administrator for Metal and Nonmetal Mine Safety and Health, MSHA, 4015 Wilson Blvd., Arlington, VA 22203, and may be examined at any Metal and Nonmetal District Office. Copies may also be obtained from the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.
053-3 Wyo. Code R. § 57.14131