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Areas With a Maintenance Plan Requirement Under Section 110(A)(1) of the CAA
State/Area/County Report
Areas with a Maintenance Plan Requirement Under Section 110(a)(1) of the CAA
Data is current as of June 15, 2005
| CALIFORNIA(Region IX) |
| East Kern Co, CA (Serious) |
| Kern Co (P) |
| Monterey Bay, CA (Moderate) |
| Monterey Co |
| San Benito Co |
| Santa Cruz Co |
| San Diego, CA (Serious) |
| San Diego Co (P) |
| Santa Barbara-Santa Maria-Lompoc, CA (Serious) |
| Santa Barbara Co |
| Yuba City, CA (Section 185A) |
| Sutter Co (P) |
| Yuba Co |
| FLORIDA(Region IV) |
| Jacksonville, FL (Section 185A) |
| Duval Co |
| Miami-Fort Lauderdale-W. Palm Beach, FL (Moderate) |
| Broward Co |
| Miami-Dade Co |
| Palm Beach Co |
| Tampa-St. Petersburg-Clearwater, FL (Marginal) |
| Hillsborough Co |
| Pinellas Co |
| KANSAS(Region VII) |
| Kansas City, MO-KS (Other) |
| Johnson Co |
| Wyandotte Co |
| KENTUCKY(Region IV) |
| Edmonson Co, KY (Marginal RT) |
| Edmonson Co |
| Huntington-Ashland, WV-KY (Moderate*) |
| Greenup Co (P) |
| Lexington-Fayette, KY (Marginal) |
| Fayette Co |
| Scott Co |
| Owensboro, KY (Marginal) |
| Daviess Co |
| Hancock Co (P) |
| Paducah, KY (Marginal) |
| Livingston Co (P) |
| Marshall Co |
| LOUISIANA(Region VI) |
| Beauregard Par, LA (Incomplete Data) |
| Beauregard Par |
| Grant Par, LA (Incomplete Data) |
| Grant Par |
| Lafayette, LA (Section 185A) |
| Lafayette Par |
| Lafourche Par, LA (Incomplete Data) |
| Lafourche Par |
| Lake Charles, LA (Marginal) |
| Calcasieu Par |
| New Orleans, LA (Section 185A) |
| Jefferson Par |
| Orleans Par |
| St Bernard Par |
| St Charles Par |
| Pointe Coupee Parish, LA (Marginal) |
| Pointe Coupee Par |
| St James Par, LA (Incomplete Data) |
| St James Par |
| St Mary Par, LA (Incomplete Data) |
| St Mary Par |
| MAINE(Region I) |
| Hancock & Waldo Cos, ME (Marginal) |
| Hancock Co (P) |
| Waldo Co (P) |
| Knox & Lincoln Co.s, ME (Moderate*) |
| Knox Co (P) |
| Lincoln Co (P) |
| Lewiston-Auburn, ME (Moderate*) |
| Androscoggin Co (P) |
| Kennebec Co |
| Portland, ME (Moderate) |
| Cumberland Co (P) |
| York Co (P) |
| MICHIGAN(Region V) |
| Saginaw-Bay City-Midland, MI (Incomplete Data) |
| Bay Co |
| Midland Co |
| Saginaw Co |
| MISSOURI(Region VII) |
| Kansas City, MO-KS (Other) |
| Clay Co |
| Jackson Co |
| Platte Co |
| NEVADA(Region IX) |
| Reno, NV (Marginal) |
| Washoe Co |
| NEW HAMPSHIRE(Region I) |
| Boston-Lawrence-Worcester (E. MA), MA-NH (Serious) |
| Hillsborough Co (P) |
| Manchester, NH (Marginal) |
| Hillsborough Co (P) |
| Merrimack Co (P) |
| Rockingham Co (P) |
| Portsmouth-Dover-Rochester, NH (Serious) |
| Strafford Co (P) |
| Cheshire Co, NH (Incomplete Data) |
| Cheshire Co |
| NEW MEXICO(Region VI) |
| Sunland Park, NM (New Area 1995) (Marginal) |
| Dona Ana Co (P) |
| NORTH CAROLINA(Region IV) |
| Greensboro-Winston Salem-High Point, NC (Moderate) |
| Davidson Co |
| Davie Co (P) |
| Forsyth Co |
| Guilford Co |
| OHIO(Region V) |
| Preble Co, OH (Section 185A) |
| Preble Co |
| OREGON(Region X) |
| Portland-Vancouver AQMA, OR-WA (Marginal) |
| Clackamas Co (P) |
| Air Quality Maintenance Area |
| Multnomah Co (P) |
| Air Quality Maintenance Area |
| Washington Co (P) |
| Air Quality Maintenance Area |
| Salem, OR (Incomplete Data) |
| Marion Co (P) |
| Salem Area Transportation Study |
| Polk Co (P) |
| Salem Area Transportation Study |
| PENNSYLVANIA(Region III) |
| Crawford Co, PA (Incomplete Data) |
| Crawford Co |
| Johnstown, PA (Marginal) |
| Somerset Co |
| Juniata Co, PA (Incomplete Data) |
| Juniata Co |
| Lawrence Co, PA (Incomplete Data) |
| Lawrence Co |
| Northumberland Co, PA (Incomplete Data) |
| Northumberland Co |
| Pike Co, PA (Incomplete Data) |
| Pike Co |
| Schuylkill Co, PA (Incomplete Data) |
| Schuylkill Co |
| Scranton-Wilkes-Barre, PA (Marginal) |
| Columbia Co |
| Snyder Co, PA (Incomplete Data) |
| Snyder Co |
| Susquehanna Co, PA (Incomplete Data) |
| Susquehanna Co |
| Warren Co, PA (Incomplete Data) |
| Warren Co |
| Wayne Co, PA (Incomplete Data) |
| Wayne Co |
| SOUTH CAROLINA(Region IV) |
| Cherokee Co, SC (Marginal) |
| Cherokee Co |
| TENNESSEE(Region IV) |
| Nashville, TN (Moderate) |
| Davidson Co |
| Rutherford Co |
| Sumner Co |
| Williamson Co |
| Wilson Co |
| TEXAS(Region VI) |
| El Paso, TX (Serious) |
| El Paso Co |
| Victoria, TX (Incomplete Data) |
| Victoria Co |
| UTAH(Region VIII) |
| Salt Lake City, UT (Moderate) |
| Davis Co |
| Salt Lake Co |
| VIRGINIA(Region III) |
| Smyth Co, VA (White Top Mtn) (Marginal RT) |
| Smyth Co (P) |
| WASHINGTON(Region X) |
| Portland-Vancouver AQMA, OR-WA (Marginal) |
| Clark Co (P) |
| Seattle-Tacoma, WA (Marginal) |
| King Co (P) |
| Pierce Co |
| Snohomish Co (P) |
| WEST VIRGINIA(Region III) |
| Greenbrier Co, WV (Marginal) |
| Greenbrier Co |
| WISCONSIN(Region V) |
| Walworth Co, WI (Marginal) |
| Walworth Co |
The 1-Hour Ozone standard, as well as designations and classifications for all 1-Hour Ozone nonattainment and maintenance areas, have been revoked except for the Greensboro, NC, Nashville, TN, and Denver, CO maintenance areas.
The former 1-Hour Ozone designations and classifications as of June 15, 2004, are being retained in subpart C of Part 81 for purposes of the anti backsliding provisions of 40 CFR 51.905. 40 CFR 51.905(c) references subpart C of part 81 for the areas affected by the anti-backsliding regulation.