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The American flag stands against the backdrop of a smoggy Los Angeles in 1972. The California Smog Check Program is an attempt to reduce smog in California. The California Smog Check Program requires vehicles that were manufactured in 1976 or later to participate in the biennial (every two years) smog check program in participating counties. [1]
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A view of Los Angeles covered in smog. Pollution in California relates to the degree of pollution in the air, water, and land of the U.S. state of California.Pollution is defined as the addition of any substance (solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a faster rate than it can be dispersed, diluted, decomposed, recycled, or ...
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Various U.S. and Canadian government agencies collaborate to produce real-time air quality maps and forecasts. [103] To combat smog conditions, localities may declare "smog alert" days, such as in the Spare the Air program in the San Francisco Bay Area. By 1970, Congress enacted the Clean Air Act to regulate air pollutant emissions. [104]
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.
San Mateo: A Centennial History. San Francisco: Scottwall Associates. ISBN 978-0-942087-08-6. OCLC 31092074. Ringler, Donald P (1975). San Mateo, U.S.A.: the golden years; an early background and sixty years of the city of San Mateo's history from its beginning at the Polhemus Plat in 1862 up through World War I. San Mateo: San Mateo ...
Get the San Mateo, CA local weather forecast by the hour and the next 10 days.