R.I. Gen. Laws § 8-4.1-5: Appropriation.

The state of Rhode Island shall bear the expense of incentive payments. The general assembly shall annually appropriate such sums as it may deem necessary to carry out the provisions of this chapter; and the controller is hereby authorized and directed to draw his or her orders upon the general treasurer for the payment of such sum or so much thereof as may be required from time to time upon receipt by him or her of duly authenticated vouchers.