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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. United States vehicle emission standards - Wikipedia

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

    A representative dynamometer-based emissions test station. For model years prior to 1996, emissions tests were performed using a chassis dynamometer-based test; The vehicle is driven so that the wheels of its main driven axle (front or rear) sit atop the dynamometer rotors, when then are unlocked to rotate freely. A special collections line is ...

  4. Illinois Environmental Protection Agency - Wikipedia

    en.wikipedia.org/wiki/Illinois_Environmental...

    The Illinois EPA was established in July 1970, shortly after the first Earth Day. Governor Richard Ogilvie signed into law the Illinois Environmental Protection Act (PA 76-2429), which became effective on July 1, 1970, and created the Illinois EPA. Illinois was the first US state with a comprehensive environmental protection act.

  5. EPA sets strict emissions standards for heavy-duty ... - AOL

    www.aol.com/news/epa-sets-strict-emissions...

    The Environmental Protection Agency on Friday set strict emissions standards for heavy-duty trucks, buses and other large vehicles, an action that officials said will help clean up some of the ...

  6. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    In the United States, emissions standards are managed by the Environmental Protection Agency (EPA). It uses tiers to identify emission standards for cars, trucks and other motor vehicles. [ 8 ] In 2014, the EPA published its "Tier 3" standards for these vehicles, which tightened air pollution emission requirements and lowered the sulfur content ...

  7. FTP-75 - Wikipedia

    en.wikipedia.org/wiki/FTP-75

    The EPA Federal Test Procedure, commonly known as FTP-75 for the city driving cycle, are a series of tests defined by the US Environmental Protection Agency (EPA) to measure tailpipe emissions and fuel economy of passenger cars (excluding light trucks and heavy-duty vehicles). The testing was mandated by the Energy Tax Act of 1978 [1] in order ...

  8. 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 ...

  9. Vehicle inspection - Wikipedia

    en.wikipedia.org/wiki/Vehicle_inspection

    An inspection sticker from the Commonwealth of Massachusetts A Warrant of Fitness certificate issued to vehicles in New Zealand. Vehicle inspection is a procedure mandated by national or subnational governments in many countries, in which a vehicle is inspected to ensure that it conforms to regulations governing safety, emissions, or both.

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