California's air pollution control program is one of the most effective in the world. Coordinated state, regional, and local efforts have steadily improved our air quality. As a result, the air is the cleanest in years. Since its formation, the ARB has worked with the public, the business sector, and local governments to protect the public's health, the economy, and the state's ecological resources through the most cost-effective reduction of air pollution
Department of Consumer Affairs Bureau of Automotive Repair information on smog requirements in the state of California.
San Joaquin Valley Clean Cities is a partnership of public and private agencies and businesses who want to improve air quality in California's Central Valley. Our goal is to provide a network of cleaner alternative fuels to area fleet operators helping them achieve local, state, and federal vehicle emission standards
A-Z Bus Sales is the largest and most established bus sales dealer and full service facility in the Western United States.
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Unless otherwise noted, this chapter applies to all diesel-powered and gasoline-powered heavy-duty vehicles,
including pre-1974 model-year vehicles, operating in the State of California.
