Indiana Code Title 36. Local Government § 36-7.6-2-3

Sec. 3.(a) A development authority may be established by any of the following:

(b) A county or qualified city may participate in the establishment of a development authority under this section and become a member of the development authority only if the fiscal body of the county or qualified city adopts an ordinance authorizing the county or qualified city to participate in the establishment of the development authority.

(c) When a county establishes a development authority with another unit as provided in this chapter, each qualified city and third class city in the county also becomes a member of the development authority, without further action by the qualified city, third class city, or the development authority.

(d) Notwithstanding any other provision of this article, a county or municipality may be a member of only one (1) development authority.

(e) Notwithstanding any other provision of this article, a county or municipality that is a member of the northwest Indiana regional development authority under IC 36-7.5 may not be a member of a development authority under this article.

(f) A development authority shall notify the Indiana economic development corporation in writing promptly after the development authority is established.