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  2. 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.

  3. United States vehicle emission standards - Wikipedia

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

    The CAA was amended in 1965 with the Motor Vehicle Air Pollution Control Act (MVAPCA) which gave the HEW Secretary authority to set federal standards for vehicle emissions as early as 1967. [1] By 1967, this authority empowered the federal government to establish enforceable emission standards, setting a precedent for addressing transportation ...

  4. 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.

  5. California Smog Check Program - Wikipedia

    en.wikipedia.org/wiki/California_Smog_Check_Program

    Under the Roadside Inspection Program vehicles are randomly inspected at checkpoints set up by the California Highway Patrol (CHP). One objective of the evaluation was to compare the post smog check performance of pre-1996 (1974–1995) vehicles to the post smog check performance determined from a previous evaluation collected in 2000–2002. [31]

  6. Nevada Department of Public Safety - Wikipedia

    en.wikipedia.org/wiki/Nevada_Department_of...

    The Nevada State Police Division is responsible for law enforcement on state highways and waterways, criminal investigations, criminal laboratory analysis, motor vehicle and commercial vehicle inspections, boat inspections, and public education about safety issues.

  7. Nevada Department of Motor Vehicles - Wikipedia

    en.wikipedia.org/wiki/Nevada_Department_of_Motor...

    DMV headquarters in Carson City. The Nevada Department of Motor Vehicles (DMV) is a Nevada state agency responsible for issuing driver licenses and vehicle registration.The DMV operates a total of 20 offices across the state, with five in Las Vegas, two in Reno, and one each in Henderson, Sparks, Carson City, Elko, Ely, Fallon, Hawthorne, Laughlin, Mesquite, Pahrump, Tonopah, Winnemucca, and ...

  8. 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 ...

  9. 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.