S.D. Codified Laws § 32-15-13.1
Current with legislation signed by the governor on or before 3/6/2024
Any silage truck or seasonal farm truck, licensed under the provisions of § 32-5-97.1 and having a gross vehicle weight of six to twenty tons, shall be exempt from the provisions of §§ 32-15-1, 32-15-2, 32-15-5, 32-15-7, 32-15-10, and 32-15-13; provided, however, such motor vehicles shall be operated only during daylight hours and only within a twenty-five mile road distance of the main entrance to the farm where such vehicle is ordinarily parked.
SDCL 32-15-13.1