Ind. Code § 36-8-26-5

Sec. 5. The board may propose, review, and approve an interoperability agreement. However, the board may not approve an interoperability agreement if the board member who supervises or operates the law enforcement agency whose duties or responsibilities will be increased does not vote in favor of the interoperability agreement (or, in the case of a nonvoting member, does not affirmatively indicate the member's assent to the interoperability agreement). An interoperability agreement expires not later than December 31, 2027.