R.I. Gen. Laws § 23-27.3-118.2: Ramps for disabled persons.

(a) No municipality shall require that a fee be paid for the construction or repair of an access ramp for disabled persons to a residential R-4 use group.

(b) Notwithstanding the provisions of any zoning ordinance to the contrary, ramps, lifts and other accommodation alternatives necessary for compliance with the provisions of the Americans with Disabilities Act (ADA) relating to accessibility shall be permitted as needed in the front, side or rear yards of existing structures, including those which have been built-out or converted to commercial uses.