Indiana Code Title 36. Local Government § 36-10-9-13

Sec. 13. (a) Revenue bonds issued under this chapter may be secured by a trust agreement by and between the board and a corporate trustee, which may be any trust company or bank having the powers of a trust company in Indiana.  Any resolution adopted by the board providing for the issuance of revenue bonds and any trust agreement under which the revenue bonds are issued may pledge or assign, subject only to valid prior pledges, all or a part of the amounts authorized by this chapter, but the board may not convey or mortgage any capital improvement or any part of a capital improvement.

(b) In authorizing the issuance of revenue bonds, the board may:

Additional revenue bonds shall be issued on the terms and conditions provided in the bond resolution or resolutions adopted by the board and in the trust agreement or any agreement supplemental to the trust agreement.  Additional revenue bonds may be secured equally and ratably without preference, priority, or distinction with the original issue of revenue bonds or may be made junior to the original issue of revenue bonds.

(c) Any pledge or assignment made by the board under this section is valid and binding from the time that the pledge or assignment is made, and the amounts pledged and received by the board are immediately subject to the lien of the pledge or assignment without physical delivery of those amounts or further act.  The lien of the pledge or assignment is valid and binding against all parties having claims of any kind in tort, contract, or otherwise against the board irrespective of whether these parties have notice of the lien.  Neither the resolution nor any trust agreement by which a pledge is created or an assignment need be filed or recorded in order to perfect the resulting lien against third parties.  However, a copy of the pledge or assignment shall be filed in the records of the board.

(d) Any trust agreement or resolution providing for the issuance of revenue bonds may contain provisions for protecting and enforcing the rights and remedies of the bondholders that are reasonable and proper and not in violation of law.  The provisions may include convenants   1 stating the duties of the board in relation to:

(e) It is lawful for any bank or trust company incorporated under statute, and any national banking association that may act as depository of the proceeds of bonds or other funds of the board, to furnish indemnifying bonds or to pledge securities that are required by the board.

(f) Any trust agreement entered into under this section may state the rights and remedies of the bondholders and of the trustee, and may restrict the individual right of action by bondholders as is customary in trust agreements or trust indentures securing bonds or debentures of private corporations.  In addition, the trust agreement may contain other provisions that the board considers reasonable and proper for the security of the bondholders.

(g) All expenses incurred in carrying out a trust agreement entered into under this section may be treated as a part of the necessary operating expenses of the board.