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8-Hour Ozone Maintenance Area/State/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
| Allegan Co, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Allegan Co [m*] | |
| Allentown-Bethlehem-Easton, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Carbon Co [n*] | |
| Lehigh Co [n*] | |
| Northampton Co [n*] | |
| Altoona, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Blair Co [n*] | |
| Baton Rouge, LA (Moderate) | |
| LOUISIANA (Region VI) | |
| Ascension Par [n*] | |
| East Baton Rouge Par [n*] | |
| Iberville Par [n*] | |
| Livingston Par [n*] | |
| West Baton Rouge Par [n*] | |
| Beaumont-Port Arthur, TX (Moderate) | |
| TEXAS (Region VI) | |
| Hardin Co [n*] | |
| Jefferson Co [n*] | |
| Orange Co [n*] | |
| Benton Harbor, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Berrien Co | |
| Benzie Co, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Benzie Co | |
| Birmingham, AL (Former Subpart 1) | |
| ALABAMA (Region IV) | |
| Jefferson Co [m*] | |
| Shelby Co [m*] | |
| Canton-Massillon, OH (Former Subpart 1) | |
| OHIO (Region V) | |
| Stark Co [m*] | |
| Cass Co, MI (Marginal) | |
| MICHIGAN (Region V) | |
| Cass Co | |
| Charleston, WV (Former Subpart 1) | |
| WEST VIRGINIA (Region III) | |
| Kanawha Co [m*] | |
| Putnam Co [m*] | |
| Chicago-Gary-Lake County, IL-IN (IN portion) (Moderate) | |
| INDIANA (Region V) | |
| Lake Co [n*] | |
| Porter Co [n*] | |
| Cincinnati-Hamilton, OH-KY-IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Dearborn Co (P) | |
| Lawrenceburg Township | |
| KENTUCKY (Region IV) | |
| Boone Co [m*] | |
| Campbell Co [m*] | |
| Kenton Co [m*] | |
| OHIO (Region V) | |
| Butler Co [m*] | |
| Clermont Co [m*] | |
| Clinton Co [m*] | |
| Hamilton Co [m*] | |
| Warren Co [m*] | |
| Clarksville-Hopkinsville, TN-KY (Former Subpart 1) | |
| KENTUCKY (Region IV) | |
| Christian Co | |
| TENNESSEE (Region IV) | |
| Montgomery Co | |
| Clearfield and Indiana Cos, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Clearfield Co | |
| Indiana Co [*] | |
| Cleveland-Akron-Lorain, OH (Moderate) | |
| OHIO (Region V) | |
| Ashtabula Co [m*] | |
| Cuyahoga Co [m*] | |
| Geauga Co [m*] | |
| Lake Co [m*] | |
| Lorain Co [m*] | |
| Medina Co [m*] | |
| Portage Co [m*] | |
| Summit Co [m*] | |
| Columbus, OH (Former Subpart 1) | |
| OHIO (Region V) | |
| Delaware Co [m*] | |
| Fairfield Co [*] | |
| Franklin Co [m*] | |
| Knox Co | |
| Licking Co [m*] | |
| Madison Co | |
| Dayton-Springfield, OH (Former Subpart 1) | |
| OHIO (Region V) | |
| Clark Co [m*] | |
| Greene Co [m*] | |
| Miami Co [m*] | |
| Montgomery Co [m*] | |
| Detroit-Ann Arbor, MI (Marginal) | |
| MICHIGAN (Region V) | |
| Lenawee Co | |
| Livingston Co [m*] | |
| Macomb Co [m*] | |
| Monroe Co [m*] | |
| Oakland Co [m*] | |
| St Clair Co [m*] | |
| Washtenaw Co [m*] | |
| Wayne Co [m*] | |
| Door Co, WI (Former Subpart 1) | |
| WISCONSIN (Region V) | |
| Door Co [m*] | |
| Erie, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Erie Co [n*] | |
| Evansville, IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Vanderburgh Co [m*] | |
| Warrick Co | |
| Flint, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Genesee Co [m*] | |
| Lapeer Co | |
| Fort Wayne, IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Allen Co | |
| Franklin Co, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Franklin Co [n*] | |
| Fredericksburg, VA (Moderate) | |
| VIRGINIA (Region III) | |
| Fredericksburg | |
| Spotsylvania Co | |
| Stafford Co [n*] | |
| Grand Rapids, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Kent Co [m*] | |
| Ottawa Co [m*] | |
| Greene Co, IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Greene Co | |
| Greene Co, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Greene Co [n*] | |
| Hancock, Knox, Lincoln & Waldo Cos, ME (Former Subpart 1) | |
| MAINE (Region I) | |
| Hancock Co (P) [m*] | |
| Knox Co (P) [n*] | |
| Lincoln Co (P) [n*] | |
| Waldo Co (P) [m*] | |
| (includes only the following town):Islesboro | |
| Harrisburg-Lebanon-Carlisle, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Cumberland Co [n*] | |
| Dauphin Co [n*] | |
| Lebanon Co [n*] | |
| Perry Co [n*] | |
| Haywood and Swain Cos (Great Smoky NP), NC (Former Subpart 1) | |
| NORTH CAROLINA (Region IV) | |
| Haywood Co (P) | |
| Great Smoky Mountain National Park | |
| Swain Co (P) | |
| Great Smoky Mountain National Park | |
| Huntington-Ashland, WV-KY (Former Subpart 1) | |
| KENTUCKY (Region IV) | |
| Boyd Co [m*] | |
| WEST VIRGINIA (Region III) | |
| Cabell Co [m*] | |
| Wayne Co [m*] | |
| Huron Co, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Huron Co | |
| Indianapolis, IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Boone Co | |
| Hamilton Co [*] | |
| Hancock Co | |
| Hendricks Co [*] | |
| Johnson Co [*] | |
| Madison Co | |
| Marion Co [m*] | |
| Morgan Co [*] | |
| Shelby Co | |
| Jackson Co, IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Jackson Co | |
| Johnstown, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Cambria Co [n*] | |
| Kalamazoo-Battle Creek, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Calhoun Co | |
| Kalamazoo Co | |
| Van Buren Co | |
| Kent and Queen Anne's Cos, MD (Marginal) | |
| MARYLAND (Region III) | |
| Kent Co [m*] | |
| Queen Annes Co [m*] | |
| Kewaunee Co, WI (Former Subpart 1) | |
| WISCONSIN (Region V) | |
| Kewaunee Co [m*] | |
| Knoxville, TN (Former Subpart 1) | |
| TENNESSEE (Region IV) | |
| Anderson Co [*] | |
| Blount Co [*] | |
| Cocke Co (P) | |
| (Great Smoky Mtn Park) | |
| Jefferson Co | |
| Knox Co [m*] | |
| Loudon Co [*] | |
| Sevier Co | |
| La Porte, IN (Marginal) | |
| INDIANA (Region V) | |
| La Porte Co | |
| Lancaster, PA (Marginal) | |
| PENNSYLVANIA (Region III) | |
| Lancaster Co [n*] | |
| Lansing-East Lansing, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Clinton Co | |
| Eaton Co | |
| Ingham Co | |
| Lima, OH (Former Subpart 1) | |
| OHIO (Region V) | |
| Allen Co | |
| Louisville, KY-IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Clark Co [m*] | |
| Floyd Co [m*] | |
| KENTUCKY (Region IV) | |
| Bullitt Co [m*] | |
| Jefferson Co [m*] | |
| Oldham Co [m*] | |
| Macon, GA (Former Subpart 1) | |
| GEORGIA (Region IV) | |
| Bibb Co [*] | |
| Monroe Co (P) [*] | |
| Madison and Page Cos (Shenandoah NP), VA (Former Subpart 1) | |
| VIRGINIA (Region III) | |
| Madison Co (P) | |
| Page Co (P) | |
| Manitowoc Co, WI (Former Subpart 1) | |
| WISCONSIN (Region V) | |
| Manitowoc Co [m*] | |
| Mason Co, MI (Former Subpart 1) | |
| MICHIGAN (Region V) | |
| Mason Co | |
| Memphis, TN-AR (Moderate) | |
| ARKANSAS (Region VI) | |
| Crittenden Co | |
| TENNESSEE (Region IV) | |
| Shelby Co [m*] | |
| Muncie, IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Delaware Co | |
| Murray Co (Chattahoochee Nat Forest), GA (Former Subpart 1) | |
| GEORGIA (Region IV) | |
| Murray Co (P) | |
| Muskegon, MI (Marginal) | |
| MICHIGAN (Region V) | |
| Muskegon Co [m*] | |
| Norfolk-Virginia Beach-Newport News (HR),VA (Marginal) | |
| VIRGINIA (Region III) | |
| Chesapeake [m*] | |
| Gloucester Co | |
| Hampton [m*] | |
| Isle Of Wight Co | |
| James City Co [m*] | |
| Newport News [m*] | |
| Norfolk [m*] | |
| Poquoson [m*] | |
| Portsmouth [m*] | |
| Suffolk [m*] | |
| Virginia Beach [m*] | |
| Williamsburg [m*] | |
| York Co [m*] | |
| Parkersburg-Marietta, WV-OH (Former Subpart 1) | |
| OHIO (Region V) | |
| Washington Co [*] | |
| WEST VIRGINIA (Region III) | |
| Wood Co [m*] | |
| Portland, ME (Marginal) | |
| MAINE (Region I) | |
| Androscoggin Co (P) [n*] | |
| (includes only the following town): Durham | |
| Cumberland Co (P) [n*] | |
| Sagadahoc Co [n*] | |
| York Co (P) [n*] | |
| Raleigh-Durham-Chapel Hill, NC (Former Subpart 1) | |
| NORTH CAROLINA (Region IV) | |
| Chatham Co (P) | |
| Baldwin Township, Center Township, New Hope Township, Williams Township | |
| Durham Co [m*] | |
| Franklin Co | |
| Granville Co [m*] | |
| Johnston Co | |
| Orange Co | |
| Person Co | |
| Wake Co [m*] | |
| Reading, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Berks Co [m*] | |
| Richmond-Petersburg, VA (Marginal) | |
| VIRGINIA (Region III) | |
| Charles City Co [m*] | |
| Chesterfield Co [m*] | |
| Colonial Heights [m*] | |
| Hanover Co [m*] | |
| Henrico Co [m*] | |
| Hopewell [m*] | |
| Petersburg | |
| Prince George Co | |
| Richmond [m*] | |
| Rocky Mount, NC (Former Subpart 1) | |
| NORTH CAROLINA (Region IV) | |
| Edgecombe Co | |
| Nash Co | |
| Scranton-Wilkes-Barre, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Lackawanna Co [n*] | |
| Luzerne Co [n*] | |
| Monroe Co [n*] | |
| Wyoming Co [n*] | |
| South Bend-Elkhart, IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Elkhart Co [m*] | |
| St Joseph Co [m*] | |
| State College, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Centre Co | |
| Steubenville-Weirton, OH-WV (Former Subpart 1) | |
| OHIO (Region V) | |
| Jefferson Co [m*] | |
| WEST VIRGINIA (Region III) | |
| Brooke Co [*] | |
| Hancock Co [*] | |
| Terre Haute, IN (Former Subpart 1) | |
| INDIANA (Region V) | |
| Vigo Co | |
| Tioga Co, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Tioga Co | |
| Toledo, OH (Former Subpart 1) | |
| OHIO (Region V) | |
| Lucas Co [m*] | |
| Wood Co [m*] | |
| Wheeling, WV-OH (Former Subpart 1) | |
| OHIO (Region V) | |
| Belmont Co [*] | |
| WEST VIRGINIA (Region III) | |
| Marshall Co [*] | |
| Ohio Co [*] | |
| York, PA (Former Subpart 1) | |
| PENNSYLVANIA (Region III) | |
| Adams Co [n*] | |
| York Co [n*] | |
| Youngstown-Warren-Sharon, OH-PA (Former Subpart 1) | |
| OHIO (Region V) | |
| Columbiana Co [m*] | |
| Mahoning Co [m*] | |
| Trumbull Co [m*] | |
| PENNSYLVANIA (Region III) | |
| Mercer Co [n*] | |
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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