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Significant Changes since the November 6, 1991 Federal Register (56 FR 56694) on Air Quality Designations and Classifications for 1-Hour Ozone Nonattainment Areas
Ordered by Area
As of June 15, 2005
ALLEGAN CO, MI - MICHIGAN
Redesignation to Maintenance
November 24, 2000 Effective January 16, 2001
Federal Register (65 FR 70490)
Previously Incomplete Data
Allegan Co
ATLANTA, GA - GEORGIA
Change to a Higher Classification (Bump-Ups)
September 26, 2003 Effective January 01, 2004
Federal Register (68 FR 55469)
Reclassify from Serious to Severe
Redesignation to Maintenance
June 15, 2005 Effective June 14, 2005
Federal Register (70 FR 34660)
BEAUMONT-PORT ARTHUR, TX - TEXAS
Change to a Lower Classification
April 02, 1996 Effective June 03, 1996
Federal Register (61 FR 14496)
Reclassified from Serious to Moderate
Includes Hardin Co, Jefferson Co, Orange Co
BEAUREGARD PAR, LA - LOUISIANA
Redesignation to Maintenance
August 18, 1995 Effective October 17, 1995
Federal Register (60 FR 43020)
Previously Incomplete Data.
Beauregard Parish
BIRMINGHAM, AL - ALABAMA
Redesignation to Maintenance
March 12, 2004 Effective April 12, 2004
Federal Register (69 FR 11798)
Previously Marginal
Jefferson Co, Shelby Co
CANTON, OH - OHIO
Redesignation to Maintenance
January 31, 1996 Effective April 01, 1996
Federal Register (61 FR 3319)
Previously Marginal.
Stark Co.
CHARLESTON, WV - WEST VIRGINIA
Redesignation to Maintenance
September 06, 1994 Effective September 06, 1994
Federal Register (59 FR 45985)
Previously Moderate.
Kanawha and Putnam Counties
CHARLOTTE-GASTONIA, NC - NORTH CAROLINA
Redesignation to Maintenance
July 05, 1995 Effective July 05, 1995
Federal Register (60 FR 34859)
Previously Moderate.
Gaston and Mecklenburg Counties
CHEROKEE CO, SC - SOUTH CAROLINA
Redesignation to Maintenance
December 15, 1992 Effective February 16, 1993
Federal Register (57 FR 59300)
Previously Marginal.
Cherokee Co
CINCINNATI-HAMILTON, OH-KY - KENTUCKY
Redesignation to Maintenance
July 31, 2002 Effective August 30, 2002
Federal Register (67 FR 49600)
This is different from a normal redesignation: it is a "reinstatement
of the redesignation to attainment." Please review FRN for details.
Boone Co, Campbell Co, Kenton Co
CINCINNATI-HAMILTON, OH-KY - OHIO
Redesignation to Maintenance
June 21, 2005 Effective June 14, 2005
Federal Register (70 FR 35945)
CLEVELAND-AKRON-LORAIN, OH - OHIO
Redesignation to Maintenance
May 07, 1996 Effective May 07, 1996
Federal Register (61 FR 20458)
Previously Moderate.
Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage and Summit
Counties
CLINTON CO, OH - OHIO
Redesignation to Maintenance
March 21, 1996 Effective March 21, 1996
Federal Register (61 FR 11560)
Previously Section 185A
Clinton Co
COLUMBIANA CO, OH - OHIO
Redesignation to Maintenance
February 08, 1995 Effective March 10, 1995
Federal Register (60 FR 7453)
Previously Incomplete Data Area.
Columbiana Co
COLUMBUS, OH - OHIO
Redesignation to Maintenance
February 01, 1996 Effective April 01, 1996
Federal Register (61 FR 3591)
Previously Marginal.
Delaware, Franklin and Licking Counties
DALLAS-FORT WORTH, TX - TEXAS
Change to a Higher Classification (Bump-Ups)
February 18, 1998 Effective March 20, 1998
Federal Register (63 FR 8128)
Reclassify from Moderate to Serious
DAYTON-SPRINGFIELD, OH - OHIO
Redesignation to Maintenance
May 05, 1995 Effective July 05, 1995
Federal Register (60 FR 22289)
Previously Moderate.
Clark, Greene, Miami and Montgomery Counties
Designation Corrections
March 07, 1997 Effective March 07, 1997
Federal Register (62 FR 10463)
Correctly prints the designation for Montgomery Co from moderate
nonattainment to attainment.
DENVER-BOULDER, CO - COLORADO
Redesignation to Maintenance
September 11, 2001 Effective October 11, 2001
Federal Register (66 FR 47086)
Previously Transitional
Adams Co, Arapahoe Co, Boulder Co, Denver Co, Douglas Co, Jefferson Co
DETROIT-ANN ARBOR, MI - MICHIGAN
Redesignation to Maintenance
March 07, 1995 Effective April 06, 1995
Federal Register (60 FR 12459)
Previously Moderate.
Livingston, Macomb, Monroe, Oakland, St. Clair, Washtenaw and Wayne
Counties
DOOR CO, WI - WISCONSIN
Redesignation to Maintenance
April 17, 2003 Effective June 16, 2003
Federal Register (68 FR 18883)
Previously Rural Transport (Marginal)
Door Co
EAST KERN CO, CA - CALIFORNIA
Boundary Change
November 08, 2001 Effective December 10, 2001
Federal Register (66 FR 56476)
Kern Co
Redesignation to Maintenance
April 22, 2004 Effective June 21, 2004
Federal Register (69 FR 21731)
Previously Serious
Kern Co
EDMONSON CO, KY - KENTUCKY
Redesignation to Maintenance
November 03, 1994 Effective January 03, 1995
Federal Register (59 FR 55053)
Previously Marginal.
Edmonson Co
EVANSVILLE, IN - INDIANA
Redesignation to Maintenance
December 09, 1997 Effective December 09, 1997
Federal Register (62 FR 64725)
Previously marginal.
Vanderburgh Co
FLINT, MI - MICHIGAN
Redesignation to Maintenance
November 13, 2000 Effective January 16, 2001
Federal Register (65 FR 67629)
Previously Section 185A
Genesee Co
GRAND RAPIDS, MI - MICHIGAN
Redesignation to Maintenance
June 21, 1996 Effective June 21, 1996
Federal Register (61 FR 31831)
Previously Moderate
Kent Co, Ottawa Co
GRANT PAR, LA - LOUISIANA
Redesignation to Maintenance
August 18, 1995 Effective October 17, 1995
Federal Register (60 FR 43020)
Previously Incomplete Data.
Grant Parish
GREENBRIER CO, WV - WEST VIRGINIA
Redesignation to Maintenance
August 04, 1995 Effective September 18, 1995
Federal Register (60 FR 39857)
Previously Marginal.
Greenbrier Co
GREENSBORO-WINSTON SALEM-HIGH POINT, NC - NORTH CAROLINA
Redesignation to Maintenance
September 09, 1993 Effective November 08, 1993
Federal Register (58 FR 47391)
Previously Moderate.
Davidson, Davie, Forsyth and Guilford Counties
HANCOCK & WALDO COS, ME - MAINE
Redesignation to Maintenance
February 28, 1997 Effective April 27, 1997
Federal Register (62 FR 9081)
Previously Marginal
Hancock Co, Waldo Co
HUNTINGTON-ASHLAND, WV-KY - KENTUCKY
Redesignation to Maintenance
June 29, 1995 Effective June 29, 1995
Federal Register (60 FR 33748)
Previously Moderate.
Boyd County and Greenup County (part)
HUNTINGTON-ASHLAND, WV-KY - WEST VIRGINIA
Redesignation to Maintenance
December 21, 1994 Effective December 21, 1994
Federal Register (59 FR 65719)
Previously Moderate.
Cabell and Wayne Counties
INDIANAPOLIS, IN - INDIANA
Redesignation to Maintenance
October 31, 1994 Effective November 30, 1994
Federal Register (59 FR 54391)
Previously Marginal.
Marion County
JACKSONVILLE, FL - FLORIDA
Redesignation to Maintenance
January 03, 1995 Effective March 06, 1995
Federal Register (60 FR 41)
Previously Transitional.
Duval County
JERSEY CO, IL - ILLINOIS
Redesignation to Maintenance
March 14, 1995 Effective April 13, 1995
Federal Register (60 FR 13634)
Previously Marginal.
Jersey Co
KANSAS CITY, MO-KS - KANSAS
Redesignation to Maintenance
June 23, 1992 Effective July 23, 1992
Federal Register (57 FR 27936)
Previously Sub-marginal.
Johnson and Wyandotte Counties
KANSAS CITY, MO-KS - MISSOURI
Redesignation to Maintenance
June 23, 1992 Effective July 23, 1992
Federal Register (57 FR 27939)
Previously Sub-marginal.
Clay, Jackson and Platte Counties
KENT & QUEEN ANNE'S CO.S, MD - MARYLAND
Redesignation to Maintenance
October 21, 2004 Effective November 22, 2004
Federal Register (69 FR 61766)
KEWAUNEE CO, WI - WISCONSIN
Redesignation to Maintenance
August 26, 1996 Effective August 26, 1996
Federal Register (61 FR 43668)
Previously Moderate
Kewaunee county
KNOXVILLE, TN - TENNESSEE
Redesignation to Maintenance
September 27, 1993 Effective October 27, 1993
Federal Register (58 FR 50271)
Previously Marginal.
Knox County
LAFOURCHE PAR, LA - LOUISIANA
Redesignation to Maintenance
August 18, 1995 Effective October 17, 1995
Federal Register (60 FR 43020)
Previously Incomplete Data.
Lafourche Parish
Designation Corrections
December 05, 1997 Effective January 05, 1998
Federal Register (62 FR 64284)
Lafourche Par
Redesignation to Maintenance
December 26, 2001 Effective February 25, 2002
Federal Register (66 FR 66317)
Previously Incomplete Data
Lafourche Par
LAFAYETTE, LA - LOUISIANA
Redesignation to Maintenance
August 18, 1995 Effective October 17, 1995
Federal Register (60 FR 43020)
Previously Transitional.
Lafayette Parish
LAKE CHARLES, LA - LOUISIANA
Redesignation to Maintenance
May 02, 1997 Effective June 02, 1997
Federal Register (62 FR 24036)
Previously Marginal
Calcasieu Parish
LEXINGTON-FAYETTE, KY - KENTUCKY
Redesignation to Maintenance
September 11, 1995 Effective November 13, 1995
Federal Register (60 FR 47089)
Previously Marginal.
Fayette and Scott Counties
LOS ANGELES SOUTH COAST AIR BASIN, CA - CALIFORNIA
Boundary Change
October 07, 2003 Effective November 06, 2003
Federal Register (68 FR 57820)
LOUISVILLE, KY-IN - INDIANA
Redesignation to Maintenance
October 23, 2001 Effective November 23, 2001
Federal Register (66 FR 53665)
Previously Moderate
Clark Co, Floyd Co
LOUISVILLE, KY-IN - KENTUCKY
Redesignation to Maintenance
October 23, 2001 Effective November 23, 2001
Federal Register (66 FR 53665)
Previously Moderate
Bullitt Co, Jefferson Co, Oldham Co
MANITOWOC CO, WI - WISCONSIN
Redesignation to Maintenance
April 17, 2003 Effective June 16, 2003
Federal Register (68 FR 18883)
Previously Moderate
Manitowoc Co
MEMPHIS, TN - TENNESSEE
Redesignation to Maintenance
January 17, 1995 Effective February 16, 1995
Federal Register (60 FR 3352)
Previously Marginal.
Shelby County
MIAMI-FORT LAUDERDALE-W. PALM BEACH, FL - FLORIDA
Redesignation to Maintenance
February 24, 1995 Effective April 25, 1995
Federal Register (60 FR 10325)
Previously Moderate.
Dade, Broward and Palm Beach Counties
MONTEREY BAY, CA - CALIFORNIA
Redesignation to Maintenance
January 17, 1997 Effective March 18, 1997
Federal Register (62 FR 2597)
Previously Moderate
Monterey Co, San Benito Co, Santa Cruz Co
MUSKEGON, MI - MICHIGAN
Change to a Lower Classification
November 30, 1992 Effective December 30, 1992
Federal Register (57 FR 56762)
Muskegon Co.
Reclassified from Serious to Moderate
Redesignation to Maintenance
August 30, 2000 Effective October 18, 2000
Federal Register (65 FR 52651)
Previously Moderate
Muskegon Co
NASHVILLE, TN - TENNESSEE
Redesignation to Maintenance
October 30, 1996 Effective October 30, 1996
Federal Register (61 FR 55903)
Previously Moderate.
Davidson Co, Rutherford Co, Sumner Co, Williamson Co, Wilson Co
NEW ORLEANS, LA - LOUISIANA
Redesignation to Maintenance
October 02, 1995 Effective December 01, 1995
Federal Register (60 FR 51354)
Previously Transitional.
Jefferson, Orleans, St. Bernard and St. Charles Parishes
NEW YORK-N. NEW JERSEY-LONG ISLAND, NY-NJ-CT - NEW YORK
Boundary Change
November 30, 1992 Effective December 30, 1992
Federal Register (57 FR 56762)
Orange and Putnam Counties: The November 6, 1991 notice indicated that
the State requested time to study the boundaries and classification
for these two counties and that EPA would evaluate the State study.
Both counties are in the New York City CMSA. The following action was
taken in the November 30, 1992 notice:
o Putnam County was placed in the Poughkeepsie Nonattainment Area
(Marginal).
o The portions of Orange County that remain with the New York
nonattainment area (classified Severe-17) are: Blooming Grove,
Chester, Highlands, Monroe, Tuxedo, Warwick, and Woodbury.
o The remaining portions of Orange County (16 towns and cities) are
designated as attainment. See April 21, 1994 notice.
NORFOLK-VIRGINIA BEACH-NEWPORT NEWS (HAMPTON ROADS),VA - VIRGINIA
Redesignation to Maintenance
June 26, 1997 Effective July 28, 1997
Federal Register (62 FR 34408)
Previously Marginal
James City Co, York Co, Chesapeake, Hampton, Newport News, Norfolk,
Poquoson, Portsmouth, Suffolk, Virginia Beach, Williamsburg
OWENSBORO, KY - KENTUCKY
Redesignation to Maintenance
November 03, 1994 Effective January 03, 1995
Federal Register (59 FR 55053)
Previously Marginal.
Daviess County and Hancock Co. (part)
PADUCAH, KY - KENTUCKY
Redesignation to Maintenance
February 07, 1995 Effective April 10, 1995
Federal Register (60 FR 7124)
Previously Marginal.
Livingston (part) and Marshall Counties
PARKERSBURG, WV - WEST VIRGINIA
Redesignation to Maintenance
September 06, 1994 Effective September 06, 1994
Federal Register (59 FR 45978)
Previously Moderate.
Wood County
PHOENIX, AZ - ARIZONA
Change to a Higher Classification (Bump-Ups)
November 06, 1997 Effective December 08, 1997
Federal Register (62 FR 60001)
Reclassify from Moderate to Serious
Redesignation to Maintenance
June 14, 2005 Effective June 14, 2005
Federal Register (70 FR 34362)
PITTSBURGH-BEAVER VALLEY, PA - PENNSYLVANIA
Redesignation to Maintenance
October 19, 2001 Effective November 19, 2001
Federal Register (66 FR 53094)
Previously Moderate
Allegheny Co, Armstrong Co, Beaver Co, Butler Co, Fayette Co,
Washington Co, Westmoreland Co
POINTE COUPEE PARISH, LA - LOUISIANA
Change to a Lower Classification
January 06, 1997 Effective December 20, 1996
Federal Register (62 FR 648)
Corrected from a Serious to a Marginal area, and redesignated to
attainment.
Pointe Coupee Parish
Redesignation to Maintenance
January 06, 1997 Effective December 20, 1996
Federal Register (62 FR 648)
Corrected from a Serious to a Marginal area, and redesignated to
attainment.
Pointe Coupee Parish
PORTLAND-VANCOUVER AQMA, OR-WA - OREGON
Redesignation to Maintenance
May 19, 1997 Effective June 18, 1997
Federal Register (62 FR 27204)
Previously Marginal
Clackamas Co, Multnomah Co, Washington Co
PORTLAND-VANCOUVER AQMA, OR-WA - WASHINGTON
Redesignation to Maintenance
May 19, 1997 Effective June 18, 1997
Federal Register (62 FR 27204)
Previously Marginal
Clark Co
POUGHKEEPSIE, NY - NEW YORK
Boundary Change
April 21, 1994 Effective April 21, 1994
Federal Register (59 FR 18967)
(Marginal) See October 6, 1994 Notice Below
Orange County: Remainder of county (16 towns and cities) joined to
Poughkeepsie.
PREBLE CO, OH - OHIO
Redesignation to Maintenance
February 08, 1995 Effective March 10, 1995
Federal Register (60 FR 7453)
Previously Transitional.
Preble Co
RALEIGH-DURHAM, NC - NORTH CAROLINA
Redesignation to Maintenance
April 18, 1994 Effective June 17, 1994
Federal Register (59 FR 18300)
Previously Moderate.
Durham, Wake and Granville (Dutchville township part) Counties
READING, PA - PENNSYLVANIA
Redesignation to Maintenance
May 07, 1997 Effective June 06, 1997
Federal Register (62 FR 24826)
Previously Moderate
Berks Co
RICHMOND, VA - VIRGINIA
Redesignation to Maintenance
November 17, 1997 Effective December 17, 1997
Federal Register (62 FR 61237)
Previously moderate.
Charles City Co, Chesterfield Co, Hanover Co, Henrico Co, Colonial
Heights, Hopewell, Richmond
SACRAMENTO METRO, CA - CALIFORNIA
Change to a Higher Classification (Bump-Ups)
April 25, 1995 Effective June 01, 1995
Federal Register (60 FR 20237)
Reclassify from Serious to Severe 2005
SAGINAW-BAY CITY-MIDLAND, MI - MICHIGAN
Redesignation to Maintenance
November 13, 2000 Effective January 16, 2001
Federal Register (65 FR 67629)
Previously Incomplete Data
Bay Co, Midland Co, Saginaw Co
SALEM, OR - OREGON
Boundary Change
November 30, 1992 Effective December 30, 1992
Federal Register (57 FR 56762)
Boundary Change from City of Salem to Salem Area Transportation Study
SALT LAKE CITY, UT - UTAH
Redesignation to Maintenance
July 17, 1997 Effective August 18, 1997
Federal Register (62 FR 38213)
Previously Moderate
Davis Co, Salt Lake Co
SAN DIEGO, CA - CALIFORNIA
Change to a Lower Classification
January 19, 1995 Effective February 21, 1995
Federal Register (60 FR 3771)
Reclassified from Severe to Serious
Redesignation to Maintenance
June 26, 2003 Effective July 28, 2003
Federal Register (68 FR 37976)
Previously Serious
San Diego Co
SAN FRANCISCO BAY AREA, CA - CALIFORNIA
Redesignation to Maintenance
May 22, 1995 Effective June 21, 1995
Federal Register (60 FR 27028)
Note: See the later notice, 63 FR 37258, for Designation to
Nonattainment.
Previously Moderate.
Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa
Clara Counties and Solano Co. (Southeastern portion) and Sonoma Co.
(Souther portion)
Designation to Nonattainment
July 10, 1998 Effective August 10, 1998
Federal Register (63 FR 37258)
Alameda Co, Contra Costa Co, Marin Co, Napa Co, San Francisco Co, San
Mateo Co, Santa Clara Co, Solano Co, Sonoma Co
Designation Corrections
July 22, 1999 Effective August 23, 1999
Federal Register (64 FR 39416)
Previously Other
Alameda Co, Contra Costa Co, Marin Co, Napa Co, San Francisco Co, San
Mateo Co, Santa Clara Co, Solano Co, Sonoma Co
SAN JOAQUIN VALLEY, CA - CALIFORNIA
Boundary Change
November 08, 2001 Effective December 10, 2001
Federal Register (66 FR 56476)
Fresno Co, Kern Co, Kings Co, Madera Co, Merced Co, San Joaquin Co,
Stanislaus Co, Tulare Co
Change to a Higher Classification (Bump-Ups)
November 08, 2001 Effective December 10, 2001
Federal Register (66 FR 56476)
Reclassify from Serious to Severe 2005
Change to a Higher Classification (Bump-Ups)
April 16, 2004 Effective May 17, 2004
Federal Register (69 FR 20550)
Reclassify from Severe 2005 to Extreme
SANTA BARBARA-SANTA MARIA-LOMPOC, CA - CALIFORNIA
Change to a Higher Classification (Bump-Ups)
December 10, 1997 Effective January 09, 1998
Federal Register (62 FR 65025)
Reclassify from Moderate to Serious
Redesignation to Maintenance
July 09, 2003 Effective August 08, 2003
Federal Register (68 FR 40789)
Previously Serious
Santa Barbara Co
SEATTLE-TACOMA, WA - WASHINGTON
Boundary Change
November 30, 1992 Effective December 30, 1992
Federal Register (57 FR 56762)
Boundary Change (small reduction)
Redesignation to Maintenance
September 26, 1996 Effective November 25, 1996
Federal Register (61 FR 50438)
Previously Moderate.
King Co, Pierce Co, Snohomish Co
SHEBOYGAN, WI - WISCONSIN
Change to a Lower Classification
November 30, 1992 Effective December 30, 1992
Federal Register (57 FR 56762)
Sheboygan Co.
Reclassified from Serious to Moderate
Redesignation to Maintenance
August 26, 1996 Effective August 26, 1996
Federal Register (61 FR 43668)
Previously Moderate
Sheboygan county
SOUTH BEND-ELKHART, IN - INDIANA
Redesignation to Maintenance
October 31, 1994 Effective November 30, 1994
Federal Register (59 FR 54391)
Previously Marginal.
Elkhart and St. Joseph Counties
SOUTHEAST DESERT MODIFIED AQMA, CA - CALIFORNIA
Boundary Change
October 07, 2003 Effective November 06, 2003
Federal Register (68 FR 57820)
ST JAMES PAR, LA - LOUISIANA
Redesignation to Maintenance
September 12, 1995 Effective November 13, 1995
Federal Register (60 FR 47280)
Previously Incomplete Data.
St James Par
ST LOUIS, MO-IL - ILLINOIS
Redesignation to Maintenance
May 12, 2003 Effective May 12, 2003
Federal Register (68 FR 25442)
Previously Serious
Madison Co, Monroe Co, St Clair Co
ST LOUIS, MO-IL - MISSOURI
Redesignation to Maintenance
May 12, 2003 Effective May 12, 2003
Federal Register (68 FR 25418)
Previously Serious
Franklin Co, Jefferson Co, St Charles Co, St Louis Co, St Louis
ST MARY PAR, LA - LOUISIANA
Redesignation to Maintenance
August 18, 1995 Effective October 17, 1995
Federal Register (60 FR 43020)
Previously Incomplete Data.
St. Mary Parish
STEUBENVILLE, OH - OHIO
Redesignation to Maintenance
February 08, 1995 Effective March 10, 1995
Federal Register (60 FR 7453)
Previously Transitional.
Jefferson County
SUNLAND PARK, NM (NEW AREA 1995) - NEW MEXICO
Designation to Nonattainment
June 12, 1995 Effective July 12, 1995
Federal Register (60 FR 30789)
Dona Ana County (part)
Classified as Marginal
TAMPA-ST. PETERSBURG-CLEARWATER, FL - FLORIDA
Redesignation to Maintenance
December 07, 1995 Effective February 05, 1996
Federal Register (60 FR 62748)
Previously Marginal.
Hillsborough and Pinellas Counties
TOLEDO, OH - OHIO
Redesignation to Maintenance
August 01, 1995 Effective August 01, 1995
Federal Register (60 FR 39115)
Previously Moderate.
Lucas and Wood Counties
VICTORIA, TX - TEXAS
Redesignation to Maintenance
March 07, 1995 Effective May 08, 1995
Federal Register (60 FR 12453)
Previously Incomplete Data.
Victoria Co
WALWORTH CO, WI - WISCONSIN
Redesignation to Maintenance
August 26, 1996 Effective August 26, 1996
Federal Register (61 FR 43668)
Previously Marginal
Walworth county
YOUNGSTOWN-WARREN-SHARON, OH-PA - OHIO
Redesignation to Maintenance
January 31, 1996 Effective April 01, 1996
Federal Register (61 FR 3319)
Previously Marginal.
Mahoning and Trumbull Counties.
The Pennsylvania portion (Mercer Co.) remains nonattainment.