page_title: California Air Resources Board
section_title: Air Quality Planning and Science Division
hierarchical_section_title: California Air Resources Board / Organizational structure / Air Quality Planning and Science Division
context_page_description: The California Air Resources Board is the "clean air agency" in the government of California. Established in 1967 when then-governor Ronald Reagan signed the Mulford-Carrell Act, combining the Bureau of Air Sanitation and the Motor Vehicle Pollution Control Board, CARB is a department within the cabinet-level California Environmental Protection Agency.
  The stated goals of CARB include attaining and maintaining healthy air quality; protecting the public from exposure to toxic air contaminants; and providing innovative approaches for complying with air pollution rules and regulations. CARB has also been instrumental in driving innovation throughout the global automotive industry through programs such as its ZEV mandate.
  One of CARB's responsibilities is to define vehicle emissions standards. California is the only state permitted to issue emissions standards under the federal Clean Air Act, subject to a waiver from the United States Environmental Protection Agency. Other states may choose to follow CARB or the federal vehicle emission standards but may not set their own.
context_section_description: The division assesses the extent of California's air quality problems and the progress being made to abate them, coordinates statewide development of clean air plans and maintains databases pertinent to air quality and emissions. The division's technical support work provides a basis for clean air plans and CARB's regulatory programs. This support includes management and interpretation of emission inventories, air quality data, meteorological data and of air quality modeling.
  The Air Quality Planning and Science Division has five branches:
  Emission Inventory Branch
  Modeling & Meteorology Branch
  Air Quality Data Branch
  Air Quality & Transportation Planning Branch
  Mobile Source Analysis Branch
caption: California Air Resources Board Laboratory, Los Angeles, in 1973
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