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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. 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. Vehicle emissions control - Wikipedia

    en.wikipedia.org/wiki/Vehicle_emissions_control

    Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines. The primary emissions studied include hydrocarbons, volatile organic compounds, carbon monoxide, carbon dioxide, nitrogen oxides, particulate matter, and sulfur oxides. Starting in the 1950s and 1960s, various ...

  5. American Automobile Association - Wikipedia

    en.wikipedia.org/wiki/American_Automobile...

    The American Automobile Association (the "AAA" or "Triple-A") was founded on March 4, 1902, in Chicago, Illinois, in response to a lack of roads and highways suitable for automobiles. [4][5] At that time, nine motor clubs with a total of 1,500 members banded together to form the AAA. Those individual motor clubs included the Chicago Automobile ...

  6. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    The California ARB standard for light vehicle emissions is a regulation of equipment first, with verification of emissions second. The property owner of the vehicle is not permitted to modify, improve, or innovate solutions in order to pass a true emissions-only standard set for their vehicle driven on public highways.

  7. Vehicle inspection - Wikipedia

    en.wikipedia.org/wiki/Vehicle_inspection

    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. Inspection can be required at various times, e.g., periodically or on the transfer of title to a vehicle.

  8. United States Environmental Protection Agency - Wikipedia

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

    On April 12, 2023, EPA proposed new federal vehicle tailpipe emissions standards that would accelerate the transition to electric vehicles (EVs). The standards would require at least two-thirds of all new cars sold in the United States to be zero-emissions vehicles by 2032. The rules seek to reduce air pollution and climate change.

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

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

    Ian Max Stevenson, Rachel Spacek. June 30, 2022 at 3:00 AM. After years of compliance, the Idaho Department of Environmental Quality wants to get rid of Ada County’s emissions testing program ...