California Air Resources Board

In April 2004, CARB submitted the 1-hour Ozone plan to United States Environmental Protection Agency (U.S. EPA) for approval. 

CARB Documents

• Plan Submittal Letter to U.S. EPA (April 21, 2004)
• Executive Order G-125-321 (April 21, 2004)
• Letter Parallel Processing to U.S. EPA (April 13. 2004)
• Motor Vehicle Emissions Budgets and Documentation
  • Budget Derivation Summary
  • Summary of Methods Used to Develop Baseline Planning Inventories
  • Inventory Summary and Budget Derivation Spreadsheet

District Document

• Ventura County 2004 Air Quality Management Plan

U.S. EPA Documents

• Approval of 1-Hour Ozone Plan (January 8, 1997)
• Final Approval of Attainment (May 27, 2009)