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  2. Vehicle inspection in the United States - Wikipedia

    en.wikipedia.org/wiki/Vehicle_inspection_in_the...

    Striped: Both safety and emissions testing required. In the United States, vehicle safety inspection and emissions inspection are governed by each state individually. Fifteen states have a periodic (annual or biennial) safety inspection program, while Maryland requires a safety inspection and Alabama requires a VIN inspection on sale or transfer of vehicles which were previously registered in ...

  3. United States vehicle emission standards - Wikipedia

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

    No emissions testing required West Virginia: No emissions testing required No emissions testing required Wisconsin [76] Testing required for vehicles model years 1996 and later in Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and Waukesha counties (model years 1996 to 2006 up to 8,500 pounds; model years 2007 or newer up to 14,000 ...

  4. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    Some states have areas within the state that require emissions testing while other cities within the state do not require emission testing. 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 ...

  5. Rocky Mountain high: U.S. looks to Colorado for methane ...

    www.aol.com/news/rocky-mountain-high-u-looks...

    While drillers from major producing states like Texas and North Dakota are bracing for a raft of new requirements, for companies in Colorado, stiffer government rules around methane emissions are ...

  6. 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]

  7. 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.

  8. Idaho wants to end vehicle emissions testing. How will that ...

    www.aol.com/news/idaho-wants-end-vehicle...

    The emissions testing program in Canyon County and Kuna began in 2010 because of an Idaho law that required vehicle emissions tests in airsheds where an ambient air pollutant is at or above 85% of ...

  9. 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]