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  1. Homepage | California Air Resources Board

    CARB's mission is to promote and protect public health, welfare and ecological resources through the effective and efficient reduction of air pollutants while recognizing and considering the …

  2. About | California Air Resources Board

    CARB is the lead agency for climate change programs and oversees all air pollution control efforts in California to attain and maintain health-based air quality standards.

  3. Truck and Bus Regulation | California Air Resources Board

    The Truck and Bus regulation has been in effect since December 2008, as of January 1, 2023, all diesel-powered vehicles operating in California, with a gross vehicle weight rating over 14,000 …

  4. Our Work | California Air Resources Board

    From guiding the activities of 35 local air pollution control districts, to leading our states efforts to address global climate change, the CARB has pioneered many of the approaches now used …

  5. Select a type of part to check | California Air Resources Board

    The California Air Resources Board is one of six boards, departments, and offices under the umbrella of the California Environmental Protection Agency.

  6. Clean Truck Check (HD I/M) | California Air Resources Board

    Senate Bill 210 (Leyva; Chapter 298, Statutes of 2019) directed CARB to develop and implement a comprehensive heavy-duty vehicle inspection and maintenance (HD I/M) regulation to …

  7. Contact Us | California Air Resources Board

    Air Pollution Complaints File a Complaint Other Environmental Issues CalEPA Environmental Complaint System

  8. CARB Regulations | California Air Resources Board

    The purpose of this tool is to provide a complete picture of CARB's regulatory programs and increase transparency by bringing information together in one location.

  9. Event Calendar | California Air Resources Board

    EVENT TYPE CARB Board Meeting Event Webcast Regulatory Deadlines -Medium- and Heavy-duty Vehicles -Advanced Clean Fleets ACF -Clean Truck Check?

  10. List of CARB-Certified Air Cleaning Devices

    Since 2010, all portable indoor air cleaning devices sold to people or businesses in California are required to be certified by CARB. As of October 2020, electronic in-duct air cleaning devices …