R.I. Gen. Laws § 31-5.5-2: Definitions.

For the purposes of this chapter, the following definitions shall apply:

(1) “Motor Vehicle” shall mean a new passenger vehicle, new light-duty truck with a gross vehicle weight of eighty-five hundred pounds (8500 lbs) or less, or any other new vehicle determined by the commissioner to be a vehicle whose primary use is noncommercial personal transportation and which is manufactured for the model year 2010 or subsequent model year; and

(2) “Motor Vehicle global warming gases” or “global warming gases” shall mean carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.