S.D. Codified Laws § 6-8B-28
Any amount of the principal of or interest on any bond anticipation notes which cannot be paid at maturity from any other funds which are properly available and appropriated by the governing body for that purpose shall be paid from the proceeds of the bonds in anticipation of which the notes were issued. The public body shall be obligated to issue and sell such bonds on or before the maturity date of the bond anticipation notes. The holders of bond anticipation notes shall have the right to require the offering of such bonds for sale, and, in the event such bonds are not sold on or before the maturity date of the notes, the holders of the notes shall have the right to require such bonds to be issued to them in exchange for the notes, by lot, on a par for par basis. In the event of any such exchange, the bonds so issued shall bear interest at the maximum rate permitted in the proceedings authorizing their issuance, shall mature serially over the maximum number of years permitted in the proceedings authorizing their issuance, and shall be subject to redemption on any interest payment date without penalty. Thereafter, whenever there is a sufficient amount of money in the sinking fund established for the bonds to prepay and redeem one or more bonds the public body shall prepay and redeem such bond or bonds on the next succeeding interest payment date for which notice of redemption can be duly given.
SDCL 6-8B-28