R.I. Gen. Laws § 23-27.3-128.1: Scope.

(a) The provisions of this section shall define the responsibility required of the owner, architect, engineer, contractor, and building official during the design, construction, and testing process for new or renovated buildings or structures.

(b) One and two (2) family dwellings design and construction are exempt from the provisions of this section, unless the building official determines that the dwelling or related structures are of an unusual design and require the use of the provisions.