R.I. Gen. Laws § 24-12-29: Trust funds — Trustee.

All money received pursuant to the provisions of this chapter, whether as proceeds from the sale of bonds or as revenues, shall be deemed to be trust funds to be held and applied solely as provided in this chapter. The authority shall, in the resolution authorizing the bonds or in the trust agreement securing the bonds, provide for the payment of the proceeds of the sale of the bonds and the revenues to be received to a trustee, which shall be any trust company or bank having the powers of a trust company within or without the state, who shall act as trustee of the funds, and hold and apply the bonds to the purposes of this chapter, subject to the regulations as this chapter and the resolution or trust agreement may provide.