For purposes of this article, the following terms shall have the
following meanings:
1. "motor vehicle" shall mean a passenger vehicle, light-duty truck
with a gross vehicle weight of eighty-five hundred pounds or less, or
any other vehicle determined by the commissioner to be a vehicle whose
primary use is noncommercial personal transportation and which is
manufactured for the model year two thousand ten 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.