Low Emission Vehicle (LEV) Standards
California's LEV II exhaust emissions standards apply to Model Year (MY) 2004 and subsequent model year passenger cars, light-duty trucks, and medium-duty passenger vehicles meeting specified exhaust standards. The LEV II standards represent the maximum exhaust emissions for LEVs, Ultra Low Emission Vehicles, and Super Ultra Low Emission Vehicles, including flexible fuel, bi-fuel, and dual-fuel vehicles when operating on an alternative fuel. New MY 2009 and subsequent model year passenger cars, light-duty trucks, and medium-duty passenger vehicles must meet specified fleet average greenhouse gas (GHG) exhaust emissions requirements. Each manufacturer must comply with these fleet average GHG requirements, which are based on California Air Resources Board calculations. Bi-fuel, flexible fuel, dual-fuel, and grid-connected hybrid electric vehicles may be eligible for an alternative compliance method. Manufacturers may earn credits for fleet average GHG values lower than the fleet average GHG requirement applicable to MY 2012.
As of October 2011, the California Air Resources Board is considering changes to the regulations, referred to as LEV III, which would control smog-causing pollutants and GHG emissions and include efforts to accelerate the production and use of plug-in hybrid electric and zero emission vehicles in the state. See the LEV III Program website for more information.
(Reference California Code of Regulations Title 13, Section 1961-1961.1)