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  2. Colorado Department of Transportation - Wikipedia

    en.wikipedia.org/wiki/Colorado_Department_of...

    The state adopted a low emission vehicle standard in 2018 and a Zero emission vehicle standard in 2019, which are projected cause a reduction in greenhouse gas emissions of 6 million tons of carbon dioxide equivalent by 2030. [6] This is part of Governor Jared Polis's plan to cut transportation emissions by 40% below 2005 levels by 2030. [7]

  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. 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).

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

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

  6. If you live in the Treasure Valley, your vehicle emissions ...

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

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

  7. List of mountain passes in Colorado - Wikipedia

    en.wikipedia.org/wiki/List_of_mountain_passes_in...

    This is a list of some important mountain passes in the Rocky Mountains of the U.S. State of Colorado. Mountain passes and highway summits traversed by improved roads

  8. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    In-use vehicles in the specified categories must meet 1997/98 emission standards for the respective new vehicle type (in the case of heavy duty engines NO x = 4.5 g/kWh, PM = 0.25 g/kWh). In other words, the 1997/98 new vehicle standards are retroactively applied to older vehicles already on the road.

  9. Metro Council pushes vote on discontinuing vehicle emissions ...

    www.aol.com/news/metro-council-pushes-vote...

    Metro Council will vote on a resolution to discontinue mandatory vehicle emissions testing in Davidson County at its Jan. 4 meeting.