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  2. California Smog Check Program - Wikipedia

    en.wikipedia.org/wiki/California_Smog_Check_Program

    The program will eliminate tailpipe testing of post-1999 vehicles and instead use the vehicle's own emissions monitoring systems. This system has saved consumers in 22 states time and money. [ 19 ] Vehicles manufactured in the model years between 1976 and 1999 are now required to pass a more stringent dynamometer-based tail-pipe test than was ...

  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 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. United States vehicle emission standards - Wikipedia

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

    Annual testing. OBDII + catalytic converter tamper check + fuel cap leak test for 1996 or later vehicles. Tailpipe/tampering testing for 1995 and older vehicles. Any diesel vehicle with a model year of 1975 and newer and a GVWR of 10,500 lbs or less. Annual testing. OBDII + catalytic converter tamper check + fuel cap leak test for 2002 or later ...

  6. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    All new vehicles manufactured or sold in the country must comply with the standards, which are tested by running the vehicle or engine in a standardized test cycle. [ 78 ] In April 2023, the Australian government released its National Electric Vehicle Strategy, which included a commitment to introduce a Fuel Efficiency Standard to address ...

  7. An odorless gas has been blamed for even more deaths ... - AOL

    www.aol.com/news/odorless-gas-blamed-even-more...

    Never run a vehicle inside an attached garage. For detached garages, leave the door open to allow air to flow. Buy only equipment carrying the seal of a national testing agency, such as ...

  8. 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.

  9. MOT test - Wikipedia

    en.wikipedia.org/wiki/MOT_test

    Approved MOT test stations must display the blue "three triangles" logo. The MOT test (or simply MOT) is an annual test of vehicle safety, roadworthiness aspects and exhaust emissions required in the United Kingdom for most vehicles over three years old.

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