Section 61-8-312 - Special speed limitations on trucks, truck tractors, and motor-driven cycles(1) Except as provided in 61-8-303, 61-8-309, 61-8-310, and subsection (2) of this section, the speed limit for a truck or truck tractor of more than 1 ton "manufacturer's rated capacity" traveling on: (a) an interstate highway, as defined in 60-1-103, is 70 miles an hour; and(b) any other public highway is 65 miles an hour.(2) Except as provided in 61-8-303, 61-8-309, and 61-8-310, the speed limit for a vehicle subject to a term permit under 61-10-124(2)(d) or a truck-trailer-trailer or truck tractor-semitrailer-trailer-trailer combination of vehicles subject to special permits under 61-10-124(3) is 65 miles an hour unless otherwise stated in the permit.(3) A person may not operate a motor-driven cycle at any time mentioned in 61-9-201 at a speed greater than 35 miles an hour unless the motor-driven cycle is equipped with a headlamp or lamps that are adequate to reveal a person or vehicle at a distance of 300 feet ahead.(4) A person who violates this section is subject to the penalties provided in 61-8-725.Amended by Laws 2023, Ch. 161,Sec. 3, eff. 10/1/2023.Amended by Laws 2021, Ch. 89,Sec. 2, eff. 10/1/2021.Amended by Laws 2019, Ch. 438,Sec. 1, eff. 10/1/2019.Amended by Laws 2019, Ch. 299,Sec. 30, eff. 10/1/2019.Amended by Laws 2015, Ch. 395, Sec. 3, eff. 10/1/2015.En. Sec. 45, Ch. 263, L. 1955; amd. Sec. 1, Ch. 241, L. 1957; amd. Sec. 1, Ch. 119, L. 1961; amd. Sec. 1, Ch. 253, L. 1971; R.C.M. 1947, 32-2148; amd. Sec. 1, Ch. 474, L. 1987; amd. Sec. 1, Ch. 437, L. 1989; amd. Sec. 48, Ch. 16, L. 1991; amd. Sec. 1, Ch. 232, L. 1997; amd. Sec. 6, Ch. 43, L. 1999; amd. Sec. 4, Ch. 352, L. 2003.