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

This final rule announces the availability of nonconformance penalties (NCPs) for the Light-Duty Truck 3 (LDT3) particulate matter (PM) standard taking effect in the 1996 model year. The availability of these NCPs will allow manufacturers of LDT3 whose vehicles or engines fail to conform with the 1996 PM standard, 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 for the LDT3 PM standard will be the previous standard of 0.13 grams per mile (g/ mi). A concurrent, but separate rulemaking addresses the availability of NCPs for the 1998 and later model year oxides of nitrogen (NO<INF>X) standard for Heavy-Duty Diesel Engines (HDDEs), the 1996 and later model year NO<INF>X standard for LDT3 and the 1996 urban bus PM standard.