S.D. Codified Laws § 9-41A-40
The principal of and interest upon any bonds or notes issued by a municipal power agency shall be payable solely from the revenues or funds pledged or available for their payment as authorized in this chapter. Each bond and note shall contain a statement that the principal thereof or interest thereon is payable solely from revenues or funds of the municipal power agency and that neither the state nor any political subdivision thereof, other than the municipal power agency, nor any first or second class municipality which is a member of the municipal power agency is obligated to pay the principal or interest and that neither the faith and credit nor the taxing power of the state or any political subdivision thereof or of any such municipality is pledged to the payment of the principal of or the interest on the bonds or notes. Nothing herein precludes the use of tax or other revenue by a municipality for payment of amounts due and performance of covenants under any contract of the municipality as provided in § 9-39-4.1.
SDCL 9-41A-40