You can help expand this article with text translated from the corresponding article in Japanese. (October 2011) Click for important translation instructions.
|
The topic of this article may not meet Misplaced Pages's general notability guideline. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted. Find sources: "Ultra-low-emission vehicle" – news · newspapers · books · scholar · JSTOR (November 2022) (Learn how and when to remove this message) |
An ultra-low-emission vehicle (ULEV) is a motor vehicle that emits extremely low levels of motor vehicle emissions compared to other vehicles. 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
California defines a ULEV as a vehicle that has been verified by the California Air Resources Board (CARB), United States to emit 50% less polluting emissions than the average for new cars released in that model year. Under LEV II regulations, the Tier I and TLEV classifications were removed for 2004. 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)
- The least stringent emissions standard in California. California phased-out TLEVs in 2004.
- LEV (low-emission vehicle)
- The minimum standard for all new cars sold in California as of 2004.
- ULEV (ultra-low-emission vehicle)
- SULEV (super-ultra-low-emission vehicle)
- SULEV emissions are 90% cleaner than the average new model year car.
- PZEV (partial-zero-emission vehicle)
- A PZEV meets SULEV tailpipe emission standards, but has no evaporative emissions (i.e., no unburned fuel leaves the fuel system). A PZEV has a 15-year / 150,000-mile warranty on its emission control components.
- AT PZEV (advanced technology partial-zero-emission vehicle)
- An AT PZEV meets the PZEV requirements but also meets some of the necessary conditions of a ZEV. AT PZEV include dedicated compressed natural gas vehicles and hybrid vehicles with engine emissions that meet PZEV standards.
- ZEV (zero-emissions vehicle)
- A ZEV has no tailpipe emissions. These include battery electric vehicles and hydrogen vehicles (fuel cell vehicles).