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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...

   United States vehicle emission standards are set through a combination of legislative mandates enacted by Congress through Clean Air Act (CAA) amendments from 1970 onwards, and executive regulations managed nationally by the Environmental Protection Agency (EPA), and more recently along with the National Highway Traffic Safety Administration (NHTSA).

4. Vehicle inspection - Wikipedia

   en.wikipedia.org/wiki/Vehicle_inspection

   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. Inspection can be required at various times, e.g., periodically or on the transfer of title to a vehicle.

5. Milwaukee just opened self-service kiosks for vehicle ... - AOL

   www.aol.com/milwaukee-just-opened-self-kiosks...

   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 ...

6. Supreme Court declines to hear challenge to California’s ...

   www.aol.com/news/supreme-court-declines-hear...

   The Supreme Court declined Monday to take up an appeal from conservative states challenging California’s ability to establish strict vehicle emission rules that effectively set the standard for ...

7. Emission standard - Wikipedia

   en.wikipedia.org/wiki/Emission_standard

   An emission performance standard is a limit that sets thresholds above which a different type of vehicle emissions control technology might be needed. While emission performance standards have been used to dictate limits for conventional pollutants such as oxides of nitrogen and oxides of sulphur (NO x and SO x ), [ 3 ] this regulatory ...