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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.
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).
In 2020, California adopted the Advanced Clean Truck Act, which requires manufacturers to sell an increasing percentage of zero-emission medium- and heavy-duty vehicles between 2024 and 2035.
Arizona emissions testing locations are located primarily in the two largest metropolitan areas (Phoenix and Tucson). People outside of these areas are not required to submit their vehicle for testing as these areas are the only ones that have failed the air quality tests by the state. California's emissions standards are set by the California ...
In contrast to California, the Biden EPA has put in more forgiving vehicle emissions standards, allowing plug-in hybrids — vehicles that combine gas engines and EV-like batteries — to play a ...
Here's what to know about vehicle emission testing requirements in Milwaukee and how to use the new self service kiosks. Traffic travels along on I-94 west of downtown near 35th Street in ...
The first legislated exhaust (tailpipe) emission standards were promulgated by the State of California for 1966 model year for cars sold in that state, followed by the United States as a whole in model year 1968. Also in 1966, the first emission test cycle was enacted in the State of California measuring tailpipe emissions in PPM (parts per ...
AB 42 exempted vehicles manufactured before 1978 from smog check testing. Also required that vehicles 20 years old or older be exempt from the Smog Check program starting in 2004. AB 42 established a brief rolling chassis exemption until it was repealed in 2006 where 1976 and newer vehicles were subjected to emission testing.