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It has been suggested that this article or section be merged into US emission standard. (Discuss) |
An ultra low emission vehicle is a vehicle that emits extremely low levels of air pollutants compared to other vehicles. The term may be used in a general sense, but in some jurisdictions it is defined in law; low and ultra low emission vehicles may be given tax or other advantages, while high emission vehicles may suffer restrictions or additional taxation.
In California
A ULEV or Ultra-Low Emissions Vehicle is a vehicle that has been verified by the Air Resources Board of California, USA to emit 50% less polluting emissions than the average for new cars released in that model year. The ULEV is one of a number of designations given by the CARB to signify the level of emissions that car-buyers can expect their new vehicle to produce and forms part of a whole range of designations, listed here in order of decreasing emissions:
TLEV: Transitional Low Emission Vehicle. This is the least stringent emissions standard in California. TLEVs are phased out as of 2004.
LEV: Low Emission Vehicle. All new cars sold in California starting in 2004 have at least a LEV emissions rating.
SULEV: Super Ultra Low Emission Vehicle. SULEVs are 90% cleaner than the average new model year car.
PZEV: Partial Zero Emission Vehicle.
PZEVs meet SULEV tailpipe emission standards, have zero evaporative emissions and a 15 year / 150,000 mile warranty on its emission control components. No evaporative emissions means no unburnt fuel escapes from the fueling system.
AT PZEV: Advanced Technology Partial Zero Emission Vehicle.
AT PZEVs meet the PZEV requirements and have additional "ZEV-like" characteristics. A dedicated compressed natural gas vehicle, or a hybrid vehicle with engine emissions that meet the PZEV standards would be an AT PZEV.
ZEV - Zero Emission Vehicle.
ZEVs have zero tailpipe emissions and are 98% cleaner than the average new model year vehicle. These include battery electric vehicles and hydrogen fuel cell vehicles.
See also
External links
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