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  2. 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]

  3. 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 ...

  4. United States vehicle emission standards - Wikipedia

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

    Only state which still conduct emission testing dating back to the 1967 model year unlike other states using EPA classification (a few still conduct test for 1968–present (1968+ testing is for jurisdictions using defined EPA standards for vehicle classification since the '68 model year and beyond automobiles must have an exhaust emission ...

  5. North Carolina moves to end vehicle emissions testing in ...

    www.aol.com/north-carolina-moves-end-vehicle...

    The N.C. Division of Air Quality will ask the U.S. EPA to approve a plan to end annual emissions inspections in 18 of the 19 counties where it is still required.

  6. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    Emission standards are the legal requirements governing air pollutants released into the atmosphere. Emission standards set quantitative limits on the permissible amount of specific air pollutants that may be released from specific sources over specific timeframes. They are generally designed to achieve air quality standards and to protect ...

  7. EU countries approve law to slash trucks' CO2 emissions - AOL

    www.aol.com/news/eu-countries-approve-law-slash...

    European Union countries gave their final approval on Monday to a law to cut carbon dioxide emissions from trucks, which will require most new heavy-duty vehicles sold in the EU from 2040 to be ...

  8. 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.

  9. U.S. engine maker facing largest Clean Air Act penalty ever ...

    www.aol.com/news/u-engine-maker-facing-largest...

    Engine manufacturer Cummins Inc. has agreed to pay a $1.675 billion penalty for allegedly installing "defeat devices" on approximately 1 million pickup trucks to cheat emissions tests.