Indiana Code Title 36. Local Government § 36-10-16-17

(1) county;  and

(2) city;

(1) The district's designation would encourage collaboration and support development across jurisdictions.

(2) The district's efforts enhance the quality of life, create cultural amenities, and preserve key land and natural resources in at least one (1) eligible unit, a reservation site, and the surrounding region.

(3) The existence of a development plan for the district that includes the development of a trail project and that identifies the trail project's objectives in a clearly focused and measurable fashion.

(4) The district's designation would catalyze new developments and attractions and improve tourism and the tourism industry in the eligible county and Indiana.

(5) The district's efforts would enhance a state park and a state nature preserve in the eligible county.

(1) approve a land use and zoning plan for the district;  and

(2) provide that any change or variance in the land use and zoning plan requires the approval of the commission.