R.I. Gen. Laws § 42-116-15: Bonds eligible for investment.

Bonds issued by the corporation under this chapter are made securities in which all public officers and agencies of the state and its political subdivisions, all insurance companies, trust companies in their commercial departments, savings banks, cooperative banks, banking associations, investment companies, executors, administrators, trustees, and other fiduciaries may properly invest funds, including capital in their control or belonging to them. These bonds are made securities which may properly be deposited with and received by any state or municipal officer of any corporation or political subdivision of the state for any purpose for which the deposit of bonds or obligations of the state or any political subdivision is now or may hereafter be authorized by law.