A retail dealer, holding any license issued by this chapter may apply for and obtain a refund of taxes paid to this state on undyed special fuel, delivered into a motor carrier refrigeration unit which is not attached to engine fuel supply tank of the vehicle. The claim shall indicate the sales tax due on the sales transactions. The claim shall be supported by sales invoices which have "reefer" noted on them and state the amount of sales tax due on the sale.
SDCL 10-47B-131