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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 ...
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.
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).
Testing will start in Phoenix and gradually expand to Scottsdale, Tempe, Mesa, Gilbert, Chandler and Paradise Valley, the company said. GM's Cruise to start testing robotaxis in Phoenix area with ...
Scottsdale is a city in the eastern part of Maricopa County, Arizona, United States, and is part of the Phoenix metropolitan area. Named Scottsdale in 1894 after its founder Winfield Scott, a retired U.S. Army chaplain, the city was incorporated in 1951 with a population of 2,000. At the 2020 census, the population was 241,361, [4] which had ...
The Arizona Proving Ground is a vehicle test facility established in 1955 in Yucca, Arizona. It was owned and operated by Ford Motor Company based in Dearborn, Michigan, until Chrysler LLC announced on November 2, 2007 that it had purchased the facility for $34.9 million. APG is located at the foot of the Hualapai Mountains near Yucca, Arizona ...
Arizona State University partnered with 3M to install PDRC films on local Tempe bus shelters as a pilot program. The film lowered bus shelter temperatures by approximately 4°C. Implementation has also been considered in Phoenix. See also. List of U.S. states and territories by carbon dioxide emissions; Plug-in electric vehicles in Arizona
Coordinates: 33.38°N 111.73°W. The Phoenix Metropolitan Area (Metro Phoenix) consists of a valley that has multiple city regions in it. The East Valley is a multi-city region within the Phoenix Metropolitan Area of Arizona. East Valley is a loosely defined region, with differing definition of what constitutes it. Superstition Mountain.