S.D. Codified Laws § 2-12-4 (2026)
Each lobbyist or employer shall file with the secretary of state, within ten days after the date of registration, a written or electronic authorization for a person to act as a lobbyist for an employer. The format for the authorization shall be prescribed by the secretary of state.
Source: SDC 1939, § 55.0704; SL 1977, ch 23 , § 4; SL 1991, ch 23 , § 5; SL 2012, ch 21 , § 1.