This section provides detailed information about designations, classifications and the nonattainment area status for the 8-Hour Ozone (2008) National Ambient Air Quality Standards (NAAQS). Original areas were designated July 20, 2012. 
See Ozone Designations and Classifications

1. All Designated Area Selections (Nonattainment and Maintenance) 
   1. Area/State Information
   2. Area Design Values
   3. State/Area and Design Value Information
   4. State/County/Area Information
   5. State/Area/County List
   6. Area/State/County List


2. Nonattainment Area Selections
   1. Areas by Classification
   2. State/County/Area Information
   3. State/Area/County List
   4. Area/State/County List


3. Maintenance Area Selections (Redesignated from Nonattainment)
   1. Areas by Classification
   2. State/County/Area Information
   3. State/Area/County List
   4. Area/State/County List


4. Area Maps
   Map and GIS shapefile downloads are available from the Downloads page (see sidebar link)
    
   1. National Map of Ozone (2008) Nonattainment Areas
   
   
   2. State Maps
      1. Individual State Maps with Ozone (2008) Nonattainment Areas
      2. Individual State Maps with Ozone (2008) Maintenance Areas
   
   
   3. Interactive Map with Current Status of 8-Hour Ozone (2008) Nonattainment/Maintenance Areas


5. Other Information
   1. Summary Reports
      1. Nonattainment Area Summary Report
      2. Maintenance Area Summary Report
      3. Nonattainment Area Summary Report w/ History
   
   
   2. Comparison to Other Standards
      1. 8-Hour Ozone (2008) NAAQS Nonattainment Areas with Prior Ozone NAAQS
         • As of April 6, 2015 (Original)
         • Updated for actions since April 6, 2015
      
      
      2. County Detail Report for 8-Hour (2015), 8-Hour (2008), 8-Hour Ozone (1997-Revoked), and 1-Hour (1979-Revoked)
   
   
   3. Designation and NAAQS Information Related to the 2008 8-Hour Ozone Standard


6. Federal Register Notices Related to 8-Hour Ozone (2008) Areas
   1. Clean Data Determination/Attainment Determinations for Areas with Current Nonattainment Status
   
   
   2. Attainment Date Extensions
   
   
   3. Classification Changes
   
   
   4. All Federal Register Notices
      1. Notices Listed By Category
      2. Notices Listed By Area Name
      3. Notices Listed By State then Area
      4. Notices Listed By Date