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  2. United States vehicle emission standards - Wikipedia

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

    more than 2 model years old to 24 model years old; motorcycles, diesel-powered, and automobiles 25 model years or older exempt from emission testing – includes motor vehicles registered as an Antique or Classic under Texas law (either displaying state-mandated vanity license plate or vintage-era license plates (this also includes past general ...

  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. Not-To-Exceed - Wikipedia

    en.wikipedia.org/wiki/Not-To-Exceed

    Basically, the HDIUT is an industry agreed to manufacturer run, in-use, on-road testing program. It builds upon the original NTE standard. It is designed to focus on compliance in the real world, and relies on emissions testing, utilizing Portable Emissions Measurement Systems (PEMS) with NOx, HC, CO and PM being the pollutants to be measured. [11]

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

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

    For premium support please call: 800-290-4726 more ways to reach us

  6. Government investigating dozens of vehicle models over diesel ...

    www.aol.com/government-investigating-dozens...

    Dozens of diesel vehicle models are being investigated over concerns their emissions are higher than thought, the Department for Transport (DfT) has confirmed.

  7. Toyota unit Hino Motors reaches $1.6 billion US diesel ... - AOL

    www.aol.com/finance/toyota-unit-hino-motors...

    Toyota Motor unit Hino Motors has agreed to a $1.6 billion settlement with US agencies and will plead guilty over excess diesel engine emissions in more than 105,000 US vehicles, the company and ...

  8. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    Many emissions standards focus on regulating pollutants released by automobiles (motor cars) and other powered vehicles.Others regulate emissions from industry, power plants, small equipment such as lawn mowers and diesel generators, and other sources of air pollution.

  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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