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  2. United States vehicle emission standards - Wikipedia

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

    Two sets, or tiers, of emission standards for light-duty vehicles in the United States were defined as a result of the Clean Air Act Amendments of 1990. The Tier I standard was adopted in 1991 and was phased in from 1994 to 1997. Tier II standards were phased in from 2004 to 2009. Within the Tier II ranking, there is a subranking ranging from ...

  3. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    In Canada, the Canadian Environmental Protection Act, 1999 (CEPA 1999) transfers the legislative authority for regulating emissions from on-road vehicles and engines to Environment Canada from Transport Canada's Motor Vehicle Safety Act. The Regulations align emission standards with the U.S. federal standards and apply to light-duty vehicles (e ...

  4. FTP-75 - Wikipedia

    en.wikipedia.org/wiki/FTP-75

    The EPA Federal Test Procedure, commonly known as FTP-75 for the city driving cycle, are a series of tests defined by the US Environmental Protection Agency (EPA) to measure tailpipe emissions and fuel economy of passenger cars (excluding light trucks and heavy-duty vehicles). The testing was mandated by the Energy Tax Act of 1978 [1] in order ...

  5. United States Environmental Protection Agency - Wikipedia

    en.wikipedia.org/wiki/United_States...

    The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental protection matters. [2] President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. [3] The order establishing the EPA was ...

  6. Cummins Receives First EPA Certification for Meeting 2014 ...

    www.aol.com/2012/10/01/cummins-receives-first...

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  7. Not-To-Exceed - Wikipedia

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

    The Not-To-Exceed (NTE) standard promulgated [when?] by the United States Environmental Protection Agency (EPA) ensures that heavy-duty truck engine emissions are controlled over the full range of speed and load combinations commonly experienced in use. NTE establishes an area (the "NTE zone") under the torque curve of an engine where emissions ...

  8. Worldwide Harmonised Light Vehicles Test Procedure - Wikipedia

    en.wikipedia.org/wiki/Worldwide_Harmonised_Light...

    t. e. The Worldwide Harmonised Light vehicles Test Procedure (WLTP) [1] is a global driving cycle standard for determining the levels of pollutants, CO 2 emission standards and fuel consumption of conventional internal combustion engine (ICE) and hybrid automobiles, as well as the all-electric range of plug-in electric vehicles.

  9. GE Receives Key EPA 'Mobile Certification' for Waukesha ... - AOL

    www.aol.com/2013/08/26/ge-receives-key-epa...

    GE Receives Key EPA 'Mobile Certification' for Waukesha Natural Gas Engines for Oilfield Power Generation GE's Technology Enables Firms to Replace Diesel Units with Lower Cost, Cleaner Gas Engines ...