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  2. 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.

  3. Ford Proving Grounds - Wikipedia

    en.wikipedia.org/wiki/Ford_Proving_Grounds

    Aerial view of the Ford Arizona Proving Ground. Latitude and longitude: The Arizona Proving Ground opened in 1985. The Proving Ground consists of 1,498 acres (6.06 km 2) located less than one hour northwest of the Phoenix Sky Harbor Airport at an elevation of 1,650 feet (500 m).

  4. Chrysler Proving Grounds - Wikipedia

    en.wikipedia.org/wiki/Chrysler_Proving_Grounds

    The Arizona Proving Ground is a vehicle test facility established in 1955 in Yucca, Arizona. It was owned and operated by Ford Motor Company based in Dearborn, Michigan , until Chrysler LLC announced on November 2, 2007 that it had purchased the facility for $34.9 million.

  5. Treasure Valley vehicle emissions tests are going away. But ...

    www.aol.com/treasure-valley-vehicle-emissions...

    The federal government has removed its testing requirement, ending a regular practice that has been in place for decades. Treasure Valley vehicle emissions tests are going away. But what if you ...

  6. United States vehicle emission standards - Wikipedia

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

    Only state which still conduct emission testing dating back to the 1967 model year unlike other states using EPA classification (a few still conduct test for 1968–present (1968+ testing is for jurisdictions using defined EPA standards for vehicle classification since the '68 model year and beyond automobiles must have an exhaust emission ...

  7. GM's Cruise to start testing robotaxis in Phoenix area with ...

    www.aol.com/news/gms-cruise-start-testing-robot...

    General Motors' troubled Cruise autonomous vehicle unit said Monday it will start testing robotaxis in Arizona this week with human safety drivers on board. Cruise said that during the testing, it ...

  8. General Motors proving grounds - Wikipedia

    en.wikipedia.org/wiki/General_Motors_proving_grounds

    The Lang Lang Proving Ground is a vehicle testing facility located at Lang Lang, Victoria, Australia, approximately 90 kilometers (56 mi) south-east of Melbourne. [3] It was opened in 1957 by Holden on a 2,152 acres (871 ha) site off the Bass Highway. [4] It was used to test every Holden model from the Holden FC onwards.

  9. Vehicle emissions control - Wikipedia

    en.wikipedia.org/wiki/Vehicle_emissions_control

    Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines. The primary emissions studied include hydrocarbons, volatile organic compounds, carbon monoxide, carbon dioxide, nitrogen oxides, particulate matter, and sulfur oxides.