S.D. Codified Laws § 2-5-2 (2026)
The elective officers of the Senate shall be a president pro tempore of the Senate, who shall be a member of that body, one secretary, and such other officers as shall be necessary to properly conduct the business of the Senate.
Source: SDC 1939, § 55.0505; SL 1947, ch 240 ; SL 1968, ch 201 , § 6.