S.D. Codified Laws § 38-34-18

Any grower subject to the assessment provided in this chapter, within sixty days following the assessment, may apply to the council for a refund of the assessment. Upon return of the refund application accompanied by a record of the assessment by the first purchaser, the grower shall, within sixty days, be refunded the net amount of the assessment collected. Additionally, a grower, who for any reason, pays the assessment more than once on the same pulse crops, upon furnishing proof of this to the council, is entitled to a refund of the overpayment.