Indiana Code Title 36. Local Government § 36-9-27-104

Sec. 104. (a) Whenever:

the board may join with the proper officials of the other state in a joint effort to construct or reconstruct the drain.

(b) Whenever proceedings are instituted in Indiana under subsection (a), the board shall fix a date, time, and place for a joint meeting with the proper officials of the other state for the purpose of forming an interstate board, and shall have a notice of the meeting served on those officials.

(c) Upon receipt by the board of an acceptance of the offer to meet, or, when the offer to meet has come from the other state, upon acceptance by the board, the board and the officials of the other state shall proceed at the specified date, time, and place to form an interstate board by electing one (1) of their number chair and one (1) of their number clerk.  The chair and the clerk may not be residents of the same state.

(d) Without regard to the number of members of the interstate board who are present, the members from Indiana are entitled to cast one-half ( 1/2 ) of all votes on all questions, and that vote shall be represented equally by the different members from Indiana who are present.