Ind. Code § 8-22-5-1

Sec. 1. The governing body of a county, city, village, town, or other political subdivision of an adjoining state whose statutes permit may acquire, establish, construct, own, control, lease, equip, improve, maintain, and operate airports, landing fields, or other air navigation facilities in Indiana, subject to statutes, rules, and regulations of Indiana applicable to its political subdivisions in aeronautical projects, but subject to the laws of the adjoining state in matters relating to financing the projects. The aeronautics commission of Indiana must approve the acquisition and establishment of the airports, landing fields, or other air navigation facilities before commencement of proceedings for acquisition or establishment.