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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. [27]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...

    Only state which still conduct emission testing dating back to the 1967 model year unlike other states using EPA classification (a few still conduct test for 1968–present (1968+ testing is for jurisdictions using defined EPA standards for vehicle classification since the '68 model year and beyond automobiles must have an exhaust emission ...

  4. Transportation Technology Center - Wikipedia

    en.wikipedia.org/wiki/Transportation_Technology...

    The Transportation Technology Center (TTC) is a railroad equipment testing and training facility located northeast of Pueblo, Colorado, owned by the Federal Railroad Administration (FRA). It was built in 1971 as the High Speed Ground Test Center ( HSGTC ) for the Department of Transportation (DOT) and its original purpose was to test several ...

  5. Transportation Research Center - Wikipedia

    en.wikipedia.org/wiki/Transportation_Research_Center

    TRC Inc. is ISO 9001 and ISO 14001 registered, and maintains a 17025 accreditation within a given scope for emissions and crash testing. The firm conducts programs designed to test for safety, energy, fuel economy, emissions, durability, noise, crash, crash simulation and performance.

  6. Ford Proving Grounds - Wikipedia

    en.wikipedia.org/wiki/Ford_Proving_Grounds

    Aerial view of the Ford Arizona Proving Ground. Latitude and longitude: The Arizona Proving Ground opened in 1985. The Proving Ground consists of 1,498 acres (6.06 km 2) located less than one hour northwest of the Phoenix Sky Harbor Airport at an elevation of 1,650 feet (500 m).

  7. Colorado lays out vision for lower greenhouse gas emissions ...

    www.aol.com/colorado-lays-vision-lower...

    Colorado aims to have a 65% carbon emission reduction from 2005 to 2035, the report said. Colorado lays out vision for lower greenhouse gas emissions, costs to do so vague Skip to main content

  8. Portable emissions measurement system - Wikipedia

    en.wikipedia.org/wiki/Portable_emissions...

    A CATI PEMS being strapped down inside a vehicle. A portable emissions measurement system (PEMS) is a vehicle emissions testing device that is small and light enough to be carried inside or moved with a motor vehicle that is being driven during testing, rather than on the stationary rollers of a dynamometer that only simulates real-world driving.

  9. Colorado State Highway 139 - Wikipedia

    en.wikipedia.org/wiki/Colorado_State_Highway_139

    State Highway 139 (SH 139) is a 72.065-mile-long (115.977 km) state highway in western Colorado, United States. SH 139's southern terminus is at Interstate 70 (I-70) in Loma , and the northern terminus is at SH 64 in Rangely .