Jump to main content or area navigation.

Contact Us

Green Book Nonattainment Areas

Classifications of 1-Hour Ozone (1979) Maintenance Areas (Redesignated from Nonattainment) - NAAQS Revoked

As of June 15, 2005
View Notes

     Atlanta, GA
     East Kern Co, CA
     Phoenix, AZ
     San Diego, CA
     Santa Barbara-Santa Maria-Lompoc, CA
     St Louis, MO-IL
     Charleston, WV
     Charlotte-Gastonia, NC
     Cincinnati-Hamilton, OH-KY
     Cleveland-Akron-Lorain, OH
     Dayton-Springfield, OH
     Detroit-Ann Arbor, MI
     Grand Rapids, MI
     Huntington-Ashland, WV-KY
     Kewaunee Co, WI
     Louisville, KY-IN
     Manitowoc Co, WI
     Miami-Fort Lauderdale-W. Palm Beach, FL
     Monterey Bay, CA
     Muskegon, MI
     Parkersburg, WV
     Pittsburgh-Beaver Valley, PA
     Raleigh-Durham, NC
     Reading, PA
     Richmond, VA
     Salt Lake City, UT
     Sheboygan, WI
     Toledo, OH
     Birmingham, AL
     Canton, OH
     Cherokee Co, SC
     Columbus, OH
     Evansville, IN
     Greenbrier Co, WV
     Hancock & Waldo Cos, ME
     Indianapolis, IN
     Jersey Co, IL
     Kent & Queen Anne's Co.s, MD
     Knoxville, TN
     Lake Charles, LA
     Lexington-Fayette, KY
     Memphis, TN
     Norfolk-Virginia Beach-Newport News (Hampton Roads),VA
     Owensboro, KY
     Paducah, KY
     Pointe Coupee Parish, LA
     Portland-Vancouver AQMA, OR-WA
     Seattle-Tacoma, WA
     South Bend-Elkhart, IN
     Tampa-St. Petersburg-Clearwater, FL
     Walworth Co, WI
     Youngstown-Warren-Sharon, OH portion
     Door Co, WI
     Edmonson Co, KY
     Kansas City, MO-KS


The Kansas City, MO-KS area has a sub-marginal classification. 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 antibacksliding 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.

Two 1-Hour Ozone Maintenance Areas (that were previously nonattainment areas) became Early Action Compact (EAC) areas. As EAC areas, their maintenance plans no longer applied, and they are not listed in the "Previous Maintenance Areas No Longer Subject to the 1-Hour Standard" reports. The areas are: Greensboro Winston Salem High Point, NC (initially classified as a Moderate 1-Hour Ozone area), and Denver Boulder, CO (initially classified as a Section 185 1-Hour Ozone area).

Go Top

Jump to main content.