R.I. Gen. Laws § 23-19-18: Trust funds.

All money received pursuant to the authority of this chapter, whether as provided from the sale of bonds or notes or as revenues, receipts, or income, shall be trust funds to be held and applied solely as provided in the proceedings under which the bonds or notes are authorized. Any officer with whom or any bank or trust company with which moneys shall be deposited as trustee, shall hold and apply the trust funds for the purposes for which the bonds or notes are authorized, subject to the applicable provisions of this chapter, the proceedings authorizing the bonds or notes, and the trust agreement securing the bonds or notes, if any.