R.I. Gen. Laws § 45-38.1-14

The exercise of the powers granted by this chapter are in all respects for the benefit of the people of the state, for the increase of their commerce, welfare, and prosperity, and for the improvement of their health and living conditions, and constitutes the performance of an essential governmental function, and neither the corporation nor its agent nor the lessee shall or may be required to pay any taxes or assessments upon or in respect of a project or any property acquired or used by the corporation or its agent or the lessee under the provisions of this chapter, or upon the income therefrom, and any bonds issued under the provisions of this chapter, their transfer, and the income from the bonds, including any profit made on the sale of the bonds, shall at all times be free from taxation of every kind by the state and by the municipalities and all other political subdivisions of the state.