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8-Hour Ozone Nonattainment State/Area/County Report
As of March 30, 2012On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule (Court Order). The Subpart 1 areas in the Green Book are listed as "Former Subpart 1" until reclassification of the areas is finalized. Proposed reclassifications were published on January 16, 2009 74 FR 2936.
View NotesArea Name (Category/Classification) (P) Partial County
| ARIZONA (Region IX) | |
| Phoenix-Mesa, AZ (Former Subpart 1) | |
| Maricopa Co (P) [m*] | |
| Pinal Co (P) [*] | |
| CALIFORNIA (Region IX) | |
| Amador and Calaveras Cos (Central Mtn), CA (Former Subpart 1) | |
| Amador Co | |
| Calaveras Co | |
| Chico, CA (Former Subpart 1) | |
| Butte Co [n*] | |
| Imperial Co, CA (Moderate) | |
| Imperial Co [n*] | |
| Kern Co (Eastern Kern), CA (Former Subpart 1) | |
| Kern Co (P) [m*] | |
| Los Angeles South Coast Air Basin, CA (Extreme) | |
| Los Angeles Co (P) [n*] | |
| Orange Co [n*] | |
| Riverside Co (P) [n*] | |
| San Bernardino Co (P) [n*] | |
| Los Angeles-San Bernardino Cos(W Mojave),CA (Moderate) | |
| Los Angeles Co (P) [n*] | |
| San Bernardino Co (P) [n*] | |
| Mariposa and Tuolumne Cos (Southern Mtn),CA (Former Subpart 1) | |
| Mariposa Co | |
| Tuolumne Co | |
| Nevada Co. (Western Part), CA (Former Subpart 1) | |
| Nevada Co (P) | |
| Riverside Co, (Coachella Valley), CA (Severe 15) | |
| Riverside Co (P) [n*] | |
| Sacramento Metro, CA (Severe 15) | |
| El Dorado Co (P) [n*] | |
| Placer Co (P) [n*] | |
| Sacramento Co [n*] | |
| Solano Co (P) [n*] | |
| Sutter Co (P) [n*] | |
| Yolo Co [n*] | |
| San Diego, CA (Former Subpart 1) | |
| San Diego Co (P) [m*] | |
| San Francisco Bay Area, CA (Marginal) | |
| Alameda Co [n*] | |
| Contra Costa Co [n*] | |
| Marin Co [n*] | |
| Napa Co [n*] | |
| San Francisco Co [n*] | |
| San Mateo Co [n*] | |
| Santa Clara Co [n*] | |
| Solano Co (P) [n*] | |
| Sonoma Co (P) [n*] | |
| San Joaquin Valley, CA (Extreme) | |
| Fresno Co [n*] | |
| Kern Co (P) [n*] | |
| Kings Co [n*] | |
| Madera Co [n*] | |
| Merced Co [n*] | |
| San Joaquin Co [n*] | |
| Stanislaus Co [n*] | |
| Tulare Co [n*] | |
| Sutter Co (Sutter Buttes), CA (Former Subpart 1) | |
| Sutter Co (P) [n*] | |
| Ventura Co, CA (Serious) | |
| Ventura Co (P) [n*] | |
| COLORADO (Region VIII) | |
| Denver-Boulder-Greeley-Ft Collins-Love., CO (Former Subpart 1) | |
| Adams Co [m*] | |
| Arapahoe Co [m*] | |
| Boulder Co [m*] | |
| Broomfield Co [m*] | |
| Denver Co [m*] | |
| Douglas Co [m*] | |
| Jefferson Co [m*] | |
| Larimer Co (P) [*] | |
| Weld Co (P) [*] | |
| CONNECTICUT (Region I) | |
| Greater Connecticut, CT (Moderate) | |
| Hartford Co [n*] | |
| Litchfield Co [n*] | |
| New London Co [n*] | |
| Tolland Co [n*] | |
| Windham Co [n*] | |
| New York-N. New Jersey-Long Island,NY-NJ-CT (Moderate) | |
| Fairfield Co [n*] | |
| Middlesex Co [n*] | |
| New Haven Co [n*] | |
| DELAWARE (Region III) | |
| Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE (Moderate) | |
| Kent Co [n*] | |
| New Castle Co [n*] | |
| Sussex Co [n*] | |
| DISTRICT OF COLUMBIA (Region III) | |
| Washington, DC-MD-VA (Moderate) | |
| Entire District [n*] | |
| GEORGIA (Region IV) | |
| Atlanta, GA (Moderate) | |
| Barrow Co [*] | |
| Bartow Co [*] | |
| Carroll Co [*] | |
| Cherokee Co [m*] | |
| Clayton Co [m*] | |
| Cobb Co [m*] | |
| Coweta Co [m*] | |
| De Kalb Co [m*] | |
| Douglas Co [m*] | |
| Fayette Co [m*] | |
| Forsyth Co [m*] | |
| Fulton Co [m*] | |
| Gwinnett Co [m*] | |
| Hall Co [*] | |
| Henry Co [m*] | |
| Newton Co [*] | |
| Paulding Co [m*] | |
| Rockdale Co [m*] | |
| Spalding Co [*] | |
| Walton Co [*] | |
| ILLINOIS (Region V) | |
| Chicago-Gary-Lake County, IL-IN (IL portion) (Moderate) | |
| Cook Co [n*] | |
| Du Page Co [n*] | |
| Grundy Co (P) [n*] | |
| Aux Sable Township, Goose Lake Township | |
| Kane Co [n*] | |
| Kendall Co (P) [n*] | |
| Oswego Township | |
| Lake Co [n*] | |
| Mc Henry Co [n*] | |
| Will Co [n*] | |
| St Louis, MO-IL (Moderate) | |
| Jersey Co [m*] | |
| Madison Co [m*] | |
| Monroe Co [m*] | |
| St Clair Co [m*] | |
| MARYLAND (Region III) | |
| Baltimore, MD (Serious) | |
| Anne Arundel Co [n*] | |
| Baltimore (City) [n*] | |
| Baltimore Co [n*] | |
| Carroll Co [n*] | |
| Harford Co [n*] | |
| Howard Co [n*] | |
| Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE (Moderate) | |
| Cecil Co [n*] | |
| Washington, DC-MD-VA (Moderate) | |
| Calvert Co [n*] | |
| Charles Co [n*] | |
| Frederick Co [n*] | |
| Montgomery Co [n*] | |
| Prince George's Co [n*] | |
| MASSACHUSETTS (Region I) | |
| Boston-Lawrence-Worcester (E. MA), MA (Moderate) | |
| Barnstable Co [n*] | |
| Bristol Co [n*] | |
| Dukes Co [n*] | |
| Essex Co [n*] | |
| Middlesex Co [n*] | |
| Nantucket Co [n*] | |
| Norfolk Co [n*] | |
| Plymouth Co [n*] | |
| Suffolk Co [n*] | |
| Worcester Co [n*] | |
| Springfield (Western MA), MA (Moderate) | |
| Berkshire Co [n*] | |
| Franklin Co [n*] | |
| Hampden Co [n*] | |
| Hampshire Co [n*] | |
| MISSOURI (Region VII) | |
| St Louis, MO-IL (Moderate) | |
| Franklin Co [m*] | |
| Jefferson Co [m*] | |
| St Charles Co [m*] | |
| St Louis [m*] | |
| St Louis Co [m*] | |
| NEVADA (Region IX) | |
| Las Vegas, NV (Former Subpart 1) | |
| Clark Co (P) [*] | |
| NEW HAMPSHIRE (Region I) | |
| Boston-Manchester-Portsmouth(SE),NH (Moderate) | |
| Hillsborough Co (P) [n*] | |
| Merrimack Co (P) [n*] | |
| (includes only the following town): Hooksett | |
| Rockingham Co (P) [n*] | |
| Strafford Co (P) [n*] | |
| NEW JERSEY (Region II) | |
| New York-N. New Jersey-Long Island,NY-NJ-CT (Moderate) | |
| Bergen Co [n*] | |
| Essex Co [n*] | |
| Hudson Co [n*] | |
| Hunterdon Co [n*] | |
| Middlesex Co [n*] | |
| Monmouth Co [n*] | |
| Morris Co [n*] | |
| Passaic Co [n*] | |
| Somerset Co [n*] | |
| Sussex Co [n*] | |
| Union Co [n*] | |
| Warren Co [n*] | |
| Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE (Moderate) | |
| Atlantic Co [n*] | |
| Burlington Co [n*] | |
| Camden Co [n*] | |
| Cape May Co [n*] | |
| Cumberland Co [n*] | |
| Gloucester Co [n*] | |
| Mercer Co [n*] | |
| Ocean Co [n*] | |
| Salem Co [n*] | |
| NEW YORK (Region II) | |
| Albany-Schenectady-Troy, NY (Former Subpart 1) | |
| Albany Co [n*] | |
| Greene Co [n*] | |
| Montgomery Co [n*] | |
| Rensselaer Co [n*] | |
| Saratoga Co [n*] | |
| Schenectady Co [n*] | |
| Schoharie Co | |
| Buffalo-Niagara Falls, NY (Former Subpart 1) | |
| Erie Co [n*] | |
| Niagara Co [n*] | |
| Essex Co (Whiteface Mtn), NY (Former Subpart 1) | |
| Essex Co (P) [n*] | |
| Jamestown, NY (Former Subpart 1) | |
| Chautauqua Co | |
| Jefferson Co, NY (Moderate) | |
| Jefferson Co [n*] | |
| New York-N. New Jersey-Long Island,NY-NJ-CT (Moderate) | |
| Bronx Co [n*] | |
| Kings Co [n*] | |
| Nassau Co [n*] | |
| New York Co [n*] | |
| Queens Co [n*] | |
| Richmond Co [n*] | |
| Rockland Co [n*] | |
| Suffolk Co [n*] | |
| Westchester Co [n*] | |
| Poughkeepsie, NY (Moderate) | |
| Dutchess Co [n*] | |
| Orange Co [n*] | |
| Putnam Co [n*] | |
| Rochester, NY (Former Subpart 1) | |
| Genesee Co | |
| Livingston Co | |
| Monroe Co | |
| Ontario Co | |
| Orleans Co | |
| Wayne Co | |
| NORTH CAROLINA (Region IV) | |
| Charlotte-Gastonia-Rock Hill, NC-SC (Moderate) | |
| Cabarrus Co | |
| Gaston Co [m*] | |
| Iredell Co (P) | |
| Davidson Township Coddle Creek Township | |
| Lincoln Co | |
| Mecklenburg Co [m*] | |
| Rowan Co | |
| Union Co | |
| PENNSYLVANIA (Region III) | |
| Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE (Moderate) | |
| Bucks Co [n*] | |
| Chester Co [n*] | |
| Delaware Co [n*] | |
| Montgomery Co [n*] | |
| Philadelphia Co [n*] | |
| Pittsburgh-Beaver Valley, PA (Former Subpart 1) | |
| Allegheny Co [m*] | |
| Armstrong Co [m*] | |
| Beaver Co [m*] | |
| Butler Co [m*] | |
| Fayette Co [m*] | |
| Washington Co [m*] | |
| Westmoreland Co [m*] | |
| RHODE ISLAND (Region I) | |
| Providence (All RI), RI (Moderate) | |
| Bristol Co [n*] | |
| Kent Co [n*] | |
| Newport Co [n*] | |
| Providence Co [n*] | |
| Washington Co [n*] | |
| SOUTH CAROLINA (Region IV) | |
| Charlotte-Gastonia-Rock Hill, NC-SC (Moderate) | |
| York Co (P) | |
| Portion along MPO lines | |
| TEXAS (Region VI) | |
| Dallas-Fort Worth, TX (Serious) | |
| Collin Co [n*] | |
| Dallas Co [n*] | |
| Denton Co [n*] | |
| Ellis Co | |
| Johnson Co | |
| Kaufman Co | |
| Parker Co | |
| Rockwall Co | |
| Tarrant Co [n*] | |
| Houston-Galveston-Brazoria, TX (Severe 15) | |
| Brazoria Co [n*] | |
| Chambers Co [n*] | |
| Fort Bend Co [n*] | |
| Galveston Co [n*] | |
| Harris Co [n*] | |
| Liberty Co [n*] | |
| Montgomery Co [n*] | |
| Waller Co [n*] | |
| VIRGINIA (Region III) | |
| Washington, DC-MD-VA (Moderate) | |
| Alexandria [n*] | |
| Arlington Co [n*] | |
| Fairfax [n*] | |
| Fairfax Co [n*] | |
| Falls Church [n*] | |
| Loudoun Co [n*] | |
| Manassas [n*] | |
| Manassas Park [n*] | |
| Prince William Co [n*] | |
| WISCONSIN (Region V) | |
| Milwaukee-Racine, WI (Moderate) | |
| Kenosha Co [n*] | |
| Milwaukee Co [n*] | |
| Ozaukee Co [n*] | |
| Racine Co [n*] | |
| Washington Co [n*] | |
| Waukesha Co [n*] | |
| Sheboygan, WI (Moderate) | |
| Sheboygan Co [m*] | |
Notes:
n = area has whole or part county or counties in a previous 1-hr Ozone nonattainment area (as of June 15, 2005) no longer subject to the 1-hour standard
m = area has whole or part county or counties in a previous 1-hr Ozone maintenance area (as of June 15, 2005) no longer subject to the 1-hour standard
* = area has whole or part county or counties in a CO, PM-10, or PM-2.5 nonattainment or maintenance area or previous 1-hr Ozone nonattainment or maintenance area (as of June 15, 2005)
Details about the designations and classifications of previous 1-hour ozone nonattainment and maintenance areas can be found here.
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