Indiana Code Title 36. Local Government § 36-10-3-30

Sec. 30. (a) A joint board shall be organized and shall function in the same manner as a separate board.  The joint board consists of all the members of the separate boards.  Two-thirds ( 2/3 ) of the members constitute a quorum, and official action must be authorized by two-thirds ( 2/3 ) of the members.  The joint board has all of the powers and duties of a separate board under this chapter, including the authority to issue bonds of the joint district.

(b) The joint board may create an executive committee composed of an equal number of members from each participating unit.  The executive committee has all of the authority and limitations of the joint board, except that official action by the executive committee must be authorized by each member of the committee.  In addition, an executive committee member may demand that an issue be submitted to the joint board.