S.D. Codified Laws § 39-1-17
The provisions of South Dakota law and rules preempt any local legislation adopted by any political subdivision of the state that is related to the production, use, advertising, sale, distribution, storage, transportation, formulation, packaging, labeling, certification, registration, application, planting, or disposal of seed as defined in § 38-12A-1, commercial fertilizer as defined in § 38-19-1, commercial feed as defined in § 39-14-39, animal remedies as defined in § 39-18-1, and pesticide as defined in § 38-20A-1. No political subdivision may adopt or continue in effect any such local legislation regardless of whether a statute or a rule adopted by the state specifically preempts the local legislation. Local legislation in violation of this section is void and unenforceable. For purposes of this section, the term, local legislation, means any ordinance, motion, resolution, amendment, regulation, or rule adopted by a political subdivision of the state.
Nothing in this section preempts or otherwise limits the authority of any county or municipality to adopt and enforce zoning regulations, fire codes, building codes, or waste disposal restrictions.
SDCL 39-1-17