S.D. Codified Laws § 13-61-5

Any pupil over the age of twenty-one years may, if circumstances warrant or require it, with the approval of a majority of the Board of Regents, be received and taught therein as provided in § 13-61-4. Like pupils may be received from without the state upon payment to the superintendent of the South Dakota School for the Blind and the Visually Impaired, for the use and benefit of such school, of such charges for board, tuition, and care, as shall be fixed by such board. However, no pupil from without the state may be received to the exclusion of any resident of this state.