R.I. Gen. Laws § 23-24.9-10.3
The department shall review the provisions of § 23-24.9-10.2 no later than September 1, 2019 to determine if the provisions of said section shall sunset and the appropriate date for such action or if the approved rates of collection should be revised. The department shall make such a determination based on the best available data pertaining to the remaining number of out-of-service mercury-containing thermostats and the collection rates achieved under the provisions. The department shall report to the general assembly no later than January 1, 2020 as to the determination made by the department. If the department determines that the provisions of § 23-24.9-10.2 shall continue then the department shall subsequently review the provisions of said section no later than September 1, 2022 and every two (2) years thereafter until such provisions are no longer required and the department shall report such findings to the general assembly for purposes of repealing the section.
R.I. Gen. Laws § 23-24.9-10.3