S.D. Codified Laws § 36-20B-23
A certificate shall be initially issued, and renewed, for a period of one year. However, certificates shall expire on the renewal date as established by the board, by rule promulgated pursuant to chapter 1-26. Applications for such certificates shall be made in such form, and in the case of applications for renewal, between such dates, as the board shall specify by rule promulgated pursuant to chapter 1-26. The board shall grant or deny any such application no later than ninety days after the application is filed in proper form. If the applicant seeks the opportunity to show that issuance or renewal of a certificate was mistakenly denied, or if the board is not able to determine whether it should be granted or denied, the board may issue to the applicant a provisional certificate, which shall expire ninety days after its issuance or when the board determines whether to issue or renew the certificate for which application was made, whichever occurs first.
The failure of an applicant to renew under this chapter does not deprive the applicant of the right of renewal thereafter if the applicant is otherwise qualified.
SDCL 36-20B-23