SDCL § 32-19-8: Number of towed farm vehicles limited--Violation as petty offense.

A farm tractor, or other type of farm power unit, may draw not to exceed two other vehicles or implements of husbandry upon the public highways of this state, if such equipment is being used exclusively by the farmer for the purpose of transporting to and from his farm agricultural commodities or products, or is being used for agricultural purposes relating to the operation and maintenance of his farm, any other statute notwithstanding. A violation of this section is a petty offense.