SDCL § 32-9-53: Gross weight of tow trucks and wreckers.

For the purposes of this chapter, the gross weight, as defined in subdivision 32-9-1(6), for tow trucks or wreckers, as defined and operated in §§ 31-8-15 and 31-8-15.1, is the actual weight of the equipped motor vehicle and does not include the weight of the motor vehicle being towed or hauled.