Indiana Code Title 8. Utilities and Transportation § 8-21-9-30

Sec. 30. All money received from any facility, pursuant to the authority of this chapter, whether as proceeds from the sale of bonds, from revenues, or otherwise, shall be held and accounted for by the department separate and apart from any other money of the department and shall be deemed to be trust funds to be held and applied solely and exclusively for the benefit of that facility as provided in this chapter, but prior to the time when needed for use by that facility may be invested by the department to the extent and in the manner provided by IC 5-13, insofar as applicable.  Such funds shall be kept in depositories designated as depositories for funds of the state as selected by the department, in the manner provided by the governing statutes insofar as applicable.  The resolution authorizing the issuance of bonds or the trust agreement securing such bonds shall provide that any officer to whom, or any bank or trust company to which money shall be entrusted, shall act as trustees of such money and shall hold and apply the same for the purposes of this chapter, subject to the provisions of this chapter and of the authorizing resolution or trust agreement.