Oregon Revised Statutes Oregon Vehicle Code § 825.601

(1) “Auxiliary power unit” means any device that is installed on a commercial vehicle that provides electrical, mechanical or thermal energy to the vehicle cab, a sleeper berth, a bus passenger compartment or any other vehicle cab, as an alternative to idling the primary engine.

(2) “Cargo temperature control unit” means any device used for controlling the temperature of a cargo transport area.

(3) “Commercial vehicle” means a commercial vehicle with a gross vehicle weight rating that is greater than 10,000 pounds.

(4) “Idle reduction technology” means any device or system of devices that is installed on a commercial vehicle and that is designed to provide heat, air conditioning or electricity that would otherwise require the operation of the primary engine.

(5) “Idling” means operation of the primary engine of a commercial vehicle while the vehicle is stationary.

(6) “Primary engine” means an internal combustion engine attached to a commercial vehicle that provides the power to propel the vehicle into motion and maintain motion.