Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines; Nonconformance Penalties for 1996 and 1998 Model Year Emission Standards for Heavy-Duty Vehicles and EnginesPart II

This final rule makes nonconformance penalties (NCPs) available for the 1998 and later model year Heavy-Duty Engine (HDE) oxides of nitrogen (NO<INF>X) standard for Heavy-Duty Diesel Engines (HDDEs), the 1996 and later model year Light-Duty Truck 3 (LDT3) NO<INF>X standard, and the 1996 and later model year Urban Bus particulate matter (PM) standard. The availability of NCPs will allow manufacturers whose vehicles or engines fail to conform with these emission standards, but do not exceed a designated upper limit, to be issued a certificate of conformity upon payment of a monetary penalty. The associated upper limit will be the previous standard (5.0 grams per brake horsepower-hour (g/BHp-hr) NO<INF>X for HDDEs, 1.7 grams per mile (g/mi) NO<INF>X for LDT3s, and 0.07 g/BHp-hr PM for urban buses). A final rule published elsewhere in this Federal Register document addresses other emission standards for which NCPs have been considered and establishes NCPs for the 1996 PM standard for LDT3.