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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. Regulation of greenhouse gases under the Clean Air Act

    en.wikipedia.org/wiki/Regulation_of_greenhouse...

    The United States Environmental Protection Agency (EPA) began regulating greenhouse gases (GHGs) under the Clean Air Act ("CAA" or "Act") from mobile and stationary sources of air pollution for the first time on January 2, 2011. Standards for mobile sources have been established pursuant to Section 202 of the CAA, and GHGs from stationary ...

  4. Clean Air Act (United States) - Wikipedia

    en.wikipedia.org/wiki/Clean_Air_Act_(United_States)

    Ohio v. EPA, No. 23A349, 603 U.S. ___ (2024) The Clean Air Act (CAA) is the United States' primary federal air quality law, intended to reduce and control air pollution nationwide. Initially enacted in 1963 and amended many times since, it is one of the United States' first and most influential modern environmental laws.

  5. House passes bill blocking Biden admin attempt to require two ...

    www.aol.com/news/house-passes-bill-blocking...

    The Environmental Protection Agency (EPA) announced a final rule in March under the Clean Air Act to set new emissions standards that would require up to two-thirds of new cars sold to be electric ...

  6. As ExxonMobil asks for handouts, startups get to work on ...

    www.aol.com/news/exxonmobil-asks-handouts...

    Earlier this week, ExxonMobil, a company among the largest producers of greenhouse gas emissions and a longtime leader in the corporate fight against climate change regulations, called for a ...

  7. 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.

  8. Net zero emissions - Wikipedia

    en.wikipedia.org/wiki/Net_zero_emissions

    Global net zero emissions describe the state where emissions of greenhouse gases due to human activities and removals of these gases are in balance over a given period. It is often called simply net zero. [2] In some cases, emissions refers to emissions of all greenhouse gases, and in others it refers only to emissions of carbon dioxide (CO 2). [2]

  9. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    Emission Standards. The NO x and PM Law introduces emission standards for specified categories of in-use highway vehicles including commercial goods (cargo) vehicles such as trucks and vans, buses, and special purpose motor vehicles, irrespective of the fuel type. The regulation also applies to diesel powered passenger cars (but not to gasoline ...