R.I. Gen. Laws § 1-3-12: Incorporation in general zoning regulations.

In the event that a political subdivision has adopted, or adopts, a comprehensive zoning ordinance regulating, among other things, the height of buildings, any airport zoning regulations adopted for the same area or portion of the area under this chapter may be incorporated in those general zoning regulations and be administered and enforced in connection with those regulations, but those general zoning regulations shall not limit the effectiveness of the regulations adopted under this chapter.