Sec. 2. As used in this chapter, "designating body" means the following:
(1) For an area located in an unincorporated area in a county that does not contain a consolidated city, the county fiscal body.
(2) For an area located in a city or town in a county that does not contain a consolidated city, the city or town fiscal body.
(3) For an area located in a county containing a consolidated city, the metropolitan development commission.