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![]() Date: 1999-12-13 03:00:00Pollution Air pollution in California Environment of California Air pollution United States emission standards California Air Resources Board Homogeneous charge compression ignition Clean Air Act United States Environmental Protection Agency Emission standards Environment Air pollution in the United States | Source URL: www.arb.ca.govDownload Document from Source WebsiteFile Size: 59,00 KBShare Document on Facebook |