S.D. Codified Laws § 13-10-12.1
Any school district employee who is employed by more than one school district is only required to obtain one criminal background investigation, if the background investigation was conducted no more than five years before the person is first employed by the additional school district. The results of the background investigation shall be transferred to any additional school district from the initial school district that obtained the criminal background investigation if the additional school district or the school district employee requests in writing to the initial school district that the results be transferred and the school district employee who was the subject of the criminal background investigation signs a written release authorizing the transfer.
SDCL 13-10-12.1