R.I. Gen. Laws § 31-24-52: Hazard switch for flashing lights.

(a) All new automobiles and automobiles for hire sold in Rhode Island beginning with the 1969 models shall be provided with a hazard switch so as to produce a constant flashing light when the switch is activated. The switch shall be activated by the operator whenever any vehicle becomes disabled on any street or highway. The switch may be attached to the directional signal apparatus.

(b) Nothing in this section shall affect regulations of the interstate commerce commission.

(c) Violations of this section are subject to fines enumerated in § 31-41.1-4.