S.D. Codified Laws § 13-5-33.1
Any cooperative educational service unit shall have the same powers and rights as school boards and school districts under chapter 13-19 except that any notes or other obligations issued by a cooperative educational service unit pursuant to this authorization shall be sold in connection with a program or other financing sponsored by the health and educational facilities authority pursuant to § 1-16A-75 and, in all events, the provisions of chapter 13-19 shall apply to and authorize and govern the issuance of any promissory notes by a cooperative educational service unit pursuant to this authorization. Except to the extent expressly provided to the contrary by the agreement which establishes a cooperative educational service unit, no note or other obligation issued by a cooperative educational service unit pursuant to this section shall be valid unless approved unanimously by the cooperative educational service unit board.
SDCL 13-5-33.1