Low Emission Vehicle (LEV) StandardsCalifornia'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. MY2009 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.
In December 2012, ARB finalized new regulatory requirements, referred to as LEV III, which allows vehicle manufacturer compliance with the U.S. Environmental Protection Agency's GHG requirements for model years 2017-2025 to serve as compliance with California's adopted GHG emissions requirements for those same model years. See the LEVII and LEV III Program website for more information. (Reference California Code of Regulations Title 13, Section 1961-1961.3)