This section provides detailed information about designations, classifications and the nonattainment area status for the PM-2.5 (2012) National Ambient Air Quality Standards (NAAQS). Original areas were designated April 15, 2015.

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 (No areas are redesignated from Nonattainment to Maintenance at this time)


4. Area Maps
   Map and GIS shapefile downloads are available from the Downloads page (see sidebar link)
    
   1. National Maps
      1. National Map of PM-2.5 (2012) Nonattainment Areas
      2. Counties Designated Nonattainment for the 1997, 2006 and/or 2012 PM-2.5 Standards - U.S. Map
   
   
   2. State Maps
      1. Individual State Maps with 2012 PM-2.5 (2012) Nonattainment Areas
   
   
   3. Interactive Map with Current Status of PM-2.5 (2012) Nonattainment/Maintenance Areas


5. Other Information
   1. Summary Reports
      1. Nonattainment Area Summary Report
      2. Nonattainment Area Summary Report w/ History
   
   
   2. Comparison to Other Standards
      1. Areas Designated Nonattainment for the 1997, 2006 and/or 2012 PM-2.5 Standards
   
   
   3. Designation and NAAQS Information Related to the 2012 PM-2.5 Standard