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1-Hour Ozone (1979) Federal Register Notice Classification Changes - NAAQS Revoked

Data is current as of June 20, 2017
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EXTREME

San Joaquin Valley, CA
Reclassify from Serious to Severe 2005
Proposed Approval 06/19/2000 65 FR Page 37926
Proposed Approval 05/18/2001 66 FR Page 27616
Final Approval 11/08/2001 66 FR Page 56476 Effective: 12/10/2001
Reclassify from Severe 2005 to Extreme
Proposed Approval 02/23/2004 69 FR Page 8126
Final Approval 04/16/2004 69 FR Page 20550 Effective: 05/17/2004

SEVERE 15

Atlanta, GA
Reclassify from Serious to Severe
Proposed Approval 12/11/2001 66 FR Page 63972
Final Approval 09/26/2003 68 FR Page 55469 Effective: 01/01/2004

Baton Rouge, LA
Reclassify from Serious to Severe
Proposed Approval 05/09/2001 66 FR Page 23646
Final Approval 06/24/2002 67 FR Page 42687
Withdrawal 08/02/2002 67 FR Page 50391
Final Approval 04/24/2003 68 FR Page 20077 Effective: 06/23/2003

Sacramento Metro, CA
Reclassify from Serious to Severe 2005
Final Approval 04/25/1995 60 FR Page 20237 Effective: 06/01/1995

Washington, DC-MD-VA
Reclassify from Serious to Severe 2005
Proposed Approval 11/13/2002 67 FR Page 68805
Final Approval 01/24/2003 68 FR Page 3410 Effective: 03/25/2003

SERIOUS

Beaumont-Port Arthur, TX
Reclassified from Serious to Moderate
Direct Final 04/02/1996 61 FR Page 14496 Effective: 06/03/1996
Reclassify from Moderate to Serious
Proposed Approval 04/16/1999 64 FR Page 18864
Final Approval 03/30/2004 69 FR Page 16483 Effective: 04/29/2004

Dallas-Fort Worth, TX
Reclassify from Moderate to Serious
Proposed Approval 09/02/1997 62 FR Page 46238
Final Approval 02/18/1998 63 FR Page 8128 Effective: 03/20/1998

Phoenix, AZ
Reclassify from Moderate to Serious
Proposed Approval 09/02/1997 62 FR Page 46229
Final Approval 11/06/1997 62 FR Page 60001 Effective: 12/08/1997

San Diego, CA
Reclassified from Severe to Serious
Final Approval 01/19/1995 60 FR Page 3771 Effective: 02/21/1995

Santa Barbara-Santa Maria-Lompoc, CA
Reclassify from Moderate to Serious
Proposed Approval 09/02/1997 62 FR Page 46234
Final Approval 12/10/1997 62 FR Page 65025 Effective: 01/09/1998

St. Louis, MO-IL
Reclassify from Moderate to Serious
Proposed Approval 03/18/1999 64 FR Page 13384
Final Approval 03/19/2001 66 FR Page 15577
Withdrawal 04/03/2001 66 FR Page 17647
Final Approval 01/30/2003 68 FR Page 4835 Effective: 01/30/2003

MODERATE

Louisville, KY-IN
Reclassify from Moderate to Serious
Proposed Approval 05/21/1999 64 FR Page 27734

Muskegon, MI
Reclassified from Serious to Moderate
Final Approval 11/30/1992 57 FR Page 56762 Effective: 12/30/1992

Portland, ME
Reclassify from Moderate to Serious
Proposed Approval 09/17/2002 67 FR Page 58551

Poughkeepsie, NY
Reclassify from Marginal to Moderate
Proposed Approval 07/28/1994 59 FR Page 38000
Final Approval 10/06/1994 59 FR Page 50848 Effective: 11/07/1994

Sheboygan, WI
Reclassified from Serious to Moderate
Final Approval 11/30/1992 57 FR Page 56762 Effective: 12/30/1992

MARGINAL

Norfolk-Virginia Beach-Newport News (Hampton Roads), VA
Reclassify from Marginal to Moderate
Direct Final 01/17/1995 60 FR Page 3349 Effective: 03/20/1995
Withdrawal 03/13/1995 60 FR Page 13368 Effective: 03/13/1995

Pointe Coupee Parish, LA
Reclassify from Serious to Marginal
Proposed Approval 07/22/1996 61 FR Page 37875
Direct Final 07/22/1996 61 FR Page 37833 Effective: 09/20/1996
Final Approval 01/06/1997 62 FR Page 648 Effective: 12/20/1996

OTHER

San Francisco Bay Area, CA
Change from no classification to Moderate
Proposed Approval 03/18/1999 64 FR Page 13383


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