S.D. Codified Laws § 36-4-20.3
A member of the Board of Examiners, when satisfied that all requirements have been met and that the circumstances require the issuance, may issue a locum tenens certificate to the applicant, provided however, all other members of the board shall be notified by mail within three days of the issuance of any such certificate and any member of the board may within five days after receiving notice of the issuance of such certificate file written objections with the president of the board; the president shall within twenty-four hours after the receipt of any such objection mail copies thereof to all members of the board for their consideration and if within three days after the mailing of such copies a majority of the board file objections to the issuance thereof in writing with the president, such certificate shall be deemed canceled.
SDCL 36-4-20.3