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  2. California Smog Check Program - Wikipedia

    en.wikipedia.org/wiki/California_Smog_Check_Program

    The program will eliminate tailpipe testing of post-1999 vehicles and instead use the vehicle's own emissions monitoring systems. This system has saved consumers in 22 states time and money. [ 19 ] Vehicles manufactured in the model years between 1976 and 1999 are now required to pass a more stringent dynamometer-based tail-pipe test than was ...

  3. Vehicle inspection in the United States - Wikipedia

    en.wikipedia.org/wiki/Vehicle_inspection_in_the...

    Vehicle emissions inspection station in Wisconsin. Arizona – biennially, in Phoenix and Tucson metro areas only, depending on age and type of vehicle. [28]California – biennially for all vehicles from out-of-state, regardless of age; and all vehicles made after 1975 which are more than six years old in all or some zip codes in 41 out of 58 counties.

  4. United States vehicle emission standards - Wikipedia

    en.wikipedia.org/wiki/United_States_vehicle...

    California's Low-emission vehicle (LEV) program defines six automotive emission standards which are stricter than the United States' national Tier regulations. Each standard has several targets depending on vehicle weight and cargo capacity; the regulations cover vehicles with test weights up to 14,000 pounds (6,400 kg).

  5. Maker of Jeep, Dodge and Ram vehicles to follow California's ...

    www.aol.com/news/automaker-dodge-chrysler-jeep...

    Stellantis, one of the largest automakers in the world, agreed Tuesday to comply with California's vehicle emissions standards that are the toughest in the nation and require zero-emission and ...

  6. US Supreme Court to hear dispute over California tailpipe ...

    www.aol.com/news/us-supreme-court-hear-dispute...

    The EPA's action in March 2022 reinstated a waiver for California to set its own tailpipe emissions limits and zero-emission vehicle mandate through 2025, reversing a 2019 decision under ...

  7. Pollution in California - Wikipedia

    en.wikipedia.org/wiki/Pollution_in_California

    In terms of proper functionality, these states examine the vehicle check engine light and in some cases conduct a two-speed idle test in which vehicle emissions are examined at a standstill state of the vehicle. However, in California even if the vehicle is so-called "functioning properly" it will not pass smog if any emissions components are ...

  8. EPA grants California waiver to ban sales of new gas ... - AOL

    www.aol.com/news/epa-grants-california-waiver...

    The U.S. Environmental Protection Agency on Wednesday granted California its request to enforce vehicle emissions standards stricter than federal rules, including the state's ban on sales of new ...

  9. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    The California ARB standard for light vehicle emissions is a regulation of equipment first, with verification of emissions second. The property owner of the vehicle is not permitted to modify, improve, or innovate solutions in order to pass a true emissions-only standard set for their vehicle driven on public highways.

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