R.I. Gen. Laws § 23-27.3-108.1.3
The building official shall accept duly authenticated reports from the committee on all new materials and methods of construction proposed for use which are not specifically provided for in this code. Wherever there is insufficient evidence that any material or method of construction conforms to the requirements of this code, or there is insufficient evidence to substantiate claims for alternative materials or construction, the committee may require tests to determine whether the proposal meets the functional requirements of this code, and the tests shall be conducted by a laboratory, agency, and/or personnel approved by the committee. The costs of all the tests or other investigations required under these provisions shall be paid by the applicant.
R.I. Gen. Laws § 23-27.3-108.1.3