S.D. Codified Laws § 50-6A-45
Public agencies acting jointly pursuant to §§ 50-6A-42 to 50-6A-51, inclusive, shall create a joint board which shall consist of members appointed by the governing body of each participating public agency. The number to be appointed, their term and compensation, if any, shall be provided for in the joint agreement. Each joint board shall organize, select officers for such terms as are fixed by the agreement, and adopt and amend from time to time rules for its own procedure. The joint board may, as agent of the participating public agencies, to plan, acquire, establish, develop, construct, enlarge, improve, maintain, equip, operate, regulate, protect and police any airport, airport facility, or airport hazard to be jointly acquired, controlled and operated. The board may be authorized by the participating public agencies to exercise on behalf of its constituent public agencies all the powers of each with respect to the airport, airport facility, or airport hazard, subject to the limitations of §§ 50-6A-46 to 50-6A-51, inclusive.
SDCL 50-6A-45