S.D. Codified Laws § 38-21-17.1 (2026)
A commercial applicator's license expires on March thirty-first of the second year following the year of issuance, unless the license is revoked before the expiration, by the secretary, as provided for in § 38-21-44.
Source: SL 2020, ch 175 , § 4; SL 2023, ch 145 , § 2.