S.D. Codified Laws § 36-26-5
Current with legislation signed by the governor on or before 3/6/2024
Appointments to the board shall be for terms of three years, beginning on October thirty-first. The appointee's term shall expire on October thirtieth in the third year of appointment. No member of the board may serve for more than three successive full terms. However, appointment to an unexpired term is not considered as a full term.
SDCL 36-26-5