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Last Updated: Wednesday, March 6, 2013 7:25 AM

Key References:
Air Quality Planning, Regulations, and Other Information

Air quality in California is regulated under Federal and State Clean Air Acts. The California Air Resources Board sets and updates State air quality standards, manages statewide air quality regulatory and research programs, and is responsible for submitting the State Implementation Plan (SIP) under the Federal Clean Air Act to the US Environmental Protection Agency. Stationary and area source permitting and regulation, and regional air quality planning including the development of mobile source emission budgets, are carried out by air pollution control districts and air quality management districts. For more air quality information, please consult the following web sites (all ):

• Air Resources Board (ARB)
  • Nonattainment Area Designations
  • Air Districts Directory
  • California Air Quality Laws and Regulations
  • Air Quality and Transportation Planning
  • The California State Implementation Plan (SIP)
  • Modeling Software
• California State and Local Government Links
• Federal Highway Administration
  • Federal Highway Administration Air Quality Web Page
  • Federal Highway Administration Transportation Conformity Web Page
  • Federal Highway Administration Air Toxics Web Page
  • Air Quality Web Page at Federal Highway Administration, California Division
• Federal Transit Administration
• US Environmental Protection Agency (EPA)
  • US EPA, Region 9
    • US EPA Region 9 Air Quality Maps
  • US EPA Transportation Conformity Web Page
  • US EPA Air Quality Modeling Support Web Site
• AASHTO Center for Environmental Excellence Air Quality section
• U.S. Census Urbanized Areas (note: may not yet show areas for 2010 Census)
  • Census Bureau Mapping
  • U.S. EPA Califronia Mapping
  • FHWA Mapping - Northern California
  • FHWA Mapping - Southern California
• Key Laws & Regulations Reference (central link page)

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