Ultra-low-emission vehicle

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,[1] while high emission vehicles may suffer restrictions or additional taxation.[2]

In California
Fuel cell vehicle

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 PZEVs 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).
gollark: I know at least three Spanish words, so I am ABSOLUTELY UNABLE to help unless you use those three Spanish words.
gollark: We've got WebP now from... 10 years ago, after so very long, but it's maybe not actually better than good JPEG encoders.
gollark: Like what?
gollark: Eventually support seems to come from... bored programmers adding it, some big company pushing it, or it just eventually being implemented in a few things with fallbacks.
gollark: Probably just that while people like the idea of better-compressed images, it's not very useful for a browser or whatever to implement it if no sites use it, and not very useful for a site to implement it if no browsers support it.

See also
  • Low-emission vehicle
  • United States emission standards
  1. Cerfication of low emission vehicles (Japanese)
  2. Ultra Low Emission tax classification (Japanese)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.