(1) "Alternative fuel" means biofuels, biogas, natural gas, liquefied petroleum gas, hydrogen and electricity.

(2) "Best available exhaust control technology" means the most effective exhaust controls to reduce diesel particulate that rely on passively regenerated diesel particulate control technology supported in a vehicle’s normal duty cycle.

(3) "Cost-effectiveness threshold" means the cost, in dollars, per ton of diesel particulate matter reduced, as established by rule of the Environmental Quality Commission.

(4) "Diesel engine" means a compression ignition engine.

(5) "Environmental Mitigation Trust Agreement" means the fully executed Environmental Mitigation Trust Agreement for State Beneficiaries effective October 2, 2017, and issued pursuant to Paragraph 17 of the Volkswagen "Clean Diesel" Marketing, Sales Practices and Products Liability Litigation partial consent decree dated October 25, 2016.

(6) "Equivalent equipment" means a piece of equipment that performs the same function and has the equivalent horsepower to a piece of equipment subject to a replacement.

(7) "Equivalent motor vehicle" means a motor vehicle that performs the same function and is in the same weight class as a motor vehicle subject to a replacement.

(8) "Gross vehicle weight rating" means the value specified by the manufacturer as the maximum loaded weight of a single or a combination vehicle.

(9) "Heavy-duty truck" means a motor vehicle or combination of vehicles operated as a unit that has a gross vehicle weight rating that is greater than 26,000 pounds.

(10) "Incremental cost" means the cost of a qualifying repower or retrofit less a baseline cost that would otherwise be incurred in the normal course of business.

(11) "Medium-duty truck" means a motor vehicle or combination of vehicles operated as a unit that has a gross vehicle weight rating that is greater than 14,000 pounds but less than or equal to 26,000 pounds.

(12) "Motor vehicle" has the meaning given that term in ORS 825.005.

(13) "Nonroad diesel engine" means a diesel engine of 25 horsepower or more that is not designed primarily to propel a motor vehicle on public highways.

(14) "Oregon diesel truck engine" means a diesel engine in a truck at least 50 percent of the use of which, as measured by miles driven or hours operated, has occurred in Oregon for the two years preceding the scrapping of the engine.

(15) "Public highway" has the meaning given that term in ORS 825.005.

(16)(a) "Replacement" means:

(A) To scrap a motor vehicle powered by a diesel engine and replace the motor vehicle with an equivalent motor vehicle; or

(B) To scrap a piece of equipment powered by a nonroad diesel engine and replace the equipment with equivalent equipment.

(b) "Replacement" does not mean ordinary maintenance, repair or replacement of a diesel engine.

(17) "Repower" means to scrap an old diesel engine and substitute it with a new engine, a used engine or a remanufactured engine, or with electric motors, drives or fuel cells, with a minimum useful life of seven years.

(18) "Retrofit" means to equip a diesel engine with new emissions-reducing parts or technology after the manufacture of the original engine or to convert the diesel engine into an engine capable of being powered by alternative fuel. A retrofit must use the greatest degree of emissions reduction available for the particular application of the equipment retrofitted that meets the cost-effectiveness threshold.

(19) "Scrap" means to destroy, render inoperable and recycle.

(20) "Truck" means a motor vehicle or combination of vehicles operated as a unit that has a gross vehicle weight rating that is greater than 14,000 pounds. [2007 c.855 §6; 2007 c.855 §6a; 2017 c.742 §§1,2; 2019 c.645 §1]