S.D. Codified Laws § 36-20B-45
If probable cause with respect to a violation by an individual with practice privileges granted under the provisions of § 36-20B-66 or 36-20B-67 has been determined by the board, or upon receipt of notice of a decision by the board of another state furnishing grounds for a determination of probable cause, the board may issue a complaint setting forth appropriate charges and set a date for hearing before the board on such charges. If a complaint is issued and a hearing date set, the board shall, not less than thirty days prior to the date of the hearing, serve a copy of the complaint and notice of the time and place of the hearing upon the individual with practice privileges granted under the provisions of § 36-20B-66 or 36-20B-67, together with a copy of the contested case proceedings under chapter 1-26. Service shall be by certified or registered mail to the address last known to the board, or pursuant to chapter 1-26.
SDCL 36-20B-45