Indiana Code Title 8. Utilities and Transportation § 8-4-7-11

Sec. 11. Any such union railway company may, by agreement in writing with any railroad company not being one of said proprietary companies, and owning or operating a railroad which extends to, into, through or near the town or city in or near which such union railroad is or may be situated, admit said last-mentioned railroad company to such use of the tracks, side-tracks, switches, depots, depot grounds, yards, sheds and other structures or railroad facilities and appliances (including the use of its belt railroad and belt railroad facilities, if any) during such time, on such terms and conditions, and for such compensation or rent as may be agreed upon.  The right of any associate company to continue in the use and enjoyment of the property and facilities of the union company may be made to depend upon the faithful performance of such terms and conditions by such associate company as may be inserted in said agreement.  The companies which may be so admitted are herein designated as associate companies:  Provided, That no such associate company shall be admitted to the use of the property and facilities of such union railway company except upon the unanimous vote of the directors of such union company.