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Adjustments to Original 1991 1-Hour Ozone Nonattainment Areas

As of June 15, 2005
BOUNDARY CHANGE

  November 30, 1992  Effective December 30, 1992
  Federal Register (57 FR 56762)
    New York-N. New Jersey-Long Island, NY-NJ-CT - NEW YORK
         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.

  November 30, 1992  Effective December 30, 1992
  Federal Register (57 FR 56762)
    Salem, OR - OREGON
         Boundary Change from City of Salem to Salem Area Transportation Study

  November 30, 1992  Effective December 30, 1992
  Federal Register (57 FR 56762)
    Seattle-Tacoma, WA - WASHINGTON
         Boundary Change (small reduction)

  April 21, 1994  Effective April 21, 1994
  Federal Register (59 FR 18967)
    Poughkeepsie, NY - NEW YORK
         (Marginal) See October 6, 1994 Notice Below
         Orange County: Remainder of county (16 towns and cities) joined to
         Poughkeepsie.

  November 08, 2001  Effective December 10, 2001
  Federal Register (66 FR 56476)
    East Kern Co, CA - CALIFORNIA
         Kern Co

  November 08, 2001  Effective December 10, 2001
  Federal Register (66 FR 56476)
    San Joaquin Valley, CA - CALIFORNIA
         Fresno Co, Kern Co, Kings Co, Madera Co, Merced Co, San Joaquin Co,
         Stanislaus Co, Tulare Co

  October 07, 2003  Effective November 06, 2003
  Federal Register (68 FR 57820)
    Los Angeles South Coast Air Basin, CA - CALIFORNIA

  October 07, 2003  Effective November 06, 2003
  Federal Register (68 FR 57820)
    Southeast Desert Modified AQMA, CA - CALIFORNIA

  September 23, 2013  Effective October 23, 2013
  Federal Register (78 FR 58189)
    Morongo Band of Mission Indians - CALIFORNIA
		Corrected a boundary for the land of the Morongo Band of Mission Indians,
		identifying it as a separately designated area for the
		one-hour Ozone standard, independent of the Los Angeles-South Coast Air Basin Area,
		with a Severe-17 classification.

CHANGE TO A LOWER CLASSIFICATION

  November 30, 1992  Effective December 30, 1992
  Federal Register (57 FR 56762)
    Muskegon, MI - MICHIGAN
         Muskegon Co.
         Reclassified from Serious to Moderate

  November 30, 1992  Effective December 30, 1992
  Federal Register (57 FR 56762)
    Sheboygan, WI - WISCONSIN
         Sheboygan Co.
         Reclassified from Serious to Moderate

  January 19, 1995  Effective February 21, 1995
  Federal Register (60 FR 3771)
    San Diego, CA - CALIFORNIA
         Reclassified from Severe to Serious

  April 02, 1996  Effective June 03, 1996

  Federal Register (61 FR 14496)
    Beaumont-Port Arthur, TX - TEXAS
         Reclassified from Serious to Moderate
         Includes Hardin Co, Jefferson Co, Orange Co

  January 06, 1997  Effective December 20, 1996
  Federal Register (62 FR 648)
    Pointe Coupee Parish, LA - LOUISIANA
         Corrected from a Serious to a Marginal area, and redesignated to
         attainment.
         Pointe Coupee Parish

CHANGE TO A HIGHER CLASSIFICATION (BUMP-UPS)

  April 25, 1995  Effective June 01, 1995
  Federal Register (60 FR 20237)
    Sacramento Metro, CA - CALIFORNIA
         Reclassify from Serious to Severe 2005

  November 06, 1997  Effective December 08, 1997
  Federal Register (62 FR 60001)
    Phoenix, AZ - ARIZONA
         Reclassify from Moderate to Serious

  December 10, 1997  Effective January 09, 1998
  Federal Register (62 FR 65025)
    Santa Barbara-Santa Maria-Lompoc, CA - CALIFORNIA
         Reclassify from Moderate to Serious

  February 18, 1998  Effective March 20, 1998
  Federal Register (63 FR 8128)
    Dallas-Fort Worth, TX - TEXAS
         Reclassify from Moderate to Serious

DESIGNATION TO NONATTAINMENT

  June 12, 1995  Effective July 12, 1995
  Federal Register (60 FR 30789)
    Sunland Park, NM (New Area 1995) - NEW MEXICO
         Dona Ana County (part)
         Classified as Marginal

  July 10, 1998  Effective August 10, 1998
  Federal Register (63 FR 37258)
    San Francisco Bay Area, CA - CALIFORNIA
         Alameda Co, Contra Costa Co, Marin Co, Napa Co, San Francisco Co, San
         Mateo Co, Santa Clara Co, Solano Co, Sonoma Co


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