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8-Hour Ozone (1997) Federal Register Notice Classification Changes - NAAQS Revoked

Data is current as of June 20, 2017
Previous Ordered by Classification
The 1997 8-hour Ozone NAAQS was revoked effective April 6, 2015 (80 FR 12264).

Click on the 'FR Page' link to view the Federal Register Notice


EXTREME

Los Angeles-South Coast Air Basin, CA
Reclassify from Severe-17 to Extreme
Proposed Approval 08/27/2009 74 FR Page 43654
Final Approval 05/05/2010 75 FR Page 24409 Effective: 06/04/2010

San Joaquin Valley, CA
Reclassify from Serious to Extreme
Proposed Approval 08/27/2009 74 FR Page 43654
Final Approval 05/05/2010 75 FR Page 24409 Effective: 06/04/2010

SEVERE 17

Morongo Band of Mission Indians
Reclassify from Severe-17 to Extreme
Proposed Approval 08/27/2009 74 FR Page 43654
Withdrawal 09/23/2013 78 FR Page 58266 Effective: 09/23/2013

Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation
Reclassify from Severe-17 to Extreme
Proposed Approval 08/27/2009 74 FR Page 43654
Withdrawal 04/03/2015 80 FR Page 18184 Effective: 04/03/2015

SEVERE 15

Houston-Galveston-Brazoria, TX
Reclassify from Moderate to Severe-15
Proposed Approval 12/31/2007 72 FR Page 74252
Final Approval 10/01/2008 73 FR Page 56983 Effective: 10/31/2008

Los Angeles-San Bernardino Cos. (W Mojave Desert), CA
Reclassify from Moderate to Severe-15
Final Approval 05/08/2012 77 FR Page 26950 Effective: 06/07/2012

Riverside Co. (Coachella Valley), CA
Reclassify from Serious to Severe-15
Proposed Approval 08/27/2009 74 FR Page 43654
Final Approval 05/05/2010 75 FR Page 24409 Effective: 06/04/2010

Sacramento Metro, CA
Reclassify from Serious to Severe-15
Proposed Approval 08/27/2009 74 FR Page 43654
Final Approval 05/05/2010 75 FR Page 24409 Effective: 06/04/2010

SERIOUS

Baltimore, MD
Reclassify from Moderate to Serious
Proposed Approval 09/01/2011 76 FR Page 54412
Final Approval 02/01/2012 77 FR Page 4901 Effective: 03/02/2012

Dallas-Fort Worth, TX
Reclassify from Moderate to Serious
Proposed Approval 08/09/2010 75 FR Page 47746
Final Approval 12/20/2010 75 FR Page 79302 Effective: 01/19/2011
Reclassify from Serious to Severe
Proposed Approval 02/17/2015 80 FR Page 8274

Ventura Co, CA
Reclassify from Moderate to Serious
Final Approval 05/20/2008 73 FR Page 29073 Effective: 06/19/2008

MODERATE

Amador and Calaveras Cos. (Central Mountain Cos.), CA
Change from Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Atlanta, GA
Reclassify from Marginal to Moderate
Proposed Approval 10/16/2007 72 FR Page 58572
Final Approval 03/06/2008 73 FR Page 12013 Effective: 04/07/2008

Baton Rouge, LA
Reclassify from Marginal to Moderate
Proposed Approval 10/30/2007 72 FR Page 61315
Final Approval 03/21/2008 73 FR Page 15087 Effective: 04/21/2008

Beaumont-Port Arthur, TX
Reclassify from Marginal to Moderate
Proposed Approval 10/30/2007 72 FR Page 61310
Final Approval 03/18/2008 73 FR Page 14391 Effective: 04/17/2008

Buffalo-Niagara Falls, NY
Change from Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Imperial Co, CA
Reclassify from Marginal to Moderate
Proposed Approval 11/23/2007 72 FR Page 65682
Final Approval 02/13/2008 73 FR Page 8209 Effective: 03/14/2008

Jamestown, NY
Change from Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Kern Co (Eastern Kern), CA
Change from Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Mariposa and Tuolumne Cos (Southern Mtn), CA
Change from Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Memphis, TN-AR
Reclassify from Moderate to Marginal
Final Approval 09/22/2004 69 FR Page 56697 Effective: 11/22/2004
Reclassify from Marginal to Moderate
Proposed Approval 10/16/2007 72 FR Page 58577
Final Approval 03/28/2008 73 FR Page 16547 Effective: 04/28/2008

Nevada Co. (Western part), CA
Change from Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Pittsburgh-Beaver Valley, PA
Change from Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

San Diego, CA
Change from Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

MARGINAL

Albany-Schenectady-Troy, NY
Change from Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Cass Co, MI
Reclassify from Moderate to Marginal
Final Approval 09/22/2004 69 FR Page 56697 Effective: 11/22/2004

Chico, CA
Change from Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Denver-Boulder-Greeley-Ft. Collins-Loveland, CO
Change from Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Detroit-Ann Arbor, MI
Reclassify from Moderate to Marginal
Final Approval 09/22/2004 69 FR Page 56697 Effective: 11/22/2004

Essex Co (Whiteface Mtn), NY
Change from Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Kent and Queen Anne's Cos, MD
Reclassify from Moderate to Marginal
Final Approval 09/22/2004 69 FR Page 56697 Effective: 11/22/2004

La Porte Co., IN
Reclassify from Moderate to Marginal
Final Approval 09/22/2004 69 FR Page 56697 Effective: 11/22/2004

Lancaster, PA
Reclassify from Moderate to Marginal
Final Approval 09/22/2004 69 FR Page 56697 Effective: 11/22/2004

Las Vegas, NV
Change from Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Muskegon, MI
Reclassify from Moderate to Marginal
Final Approval 09/22/2004 69 FR Page 56697 Effective: 11/22/2004

Phoenix-Mesa, AZ
Change from Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Richmond-Petersburg, VA
Reclassify from Moderate to Marginal
Final Approval 09/22/2004 69 FR Page 56697 Effective: 11/22/2004

Rochester, NY
Change from Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

Sutter Co (Sutter Buttes), CA
Change from Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936
Final Approval 05/14/2012 77 FR Page 28424 Effective: 06/13/2012

FORMER SUBPART 1

Allegan Co, MI
From Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936

Cincinnati-Hamilton, OH-KY-IN
From Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936

Clearfield and Indiana Cos, PA
From Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936

Columbus, OH
From Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936

Door Co, WI
From Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936

Greene Co, PA
From Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936

Haywood and Swain Cos (Great Smoky NP), NC
From Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936

Knoxville, TN
From Former Subpart 1 to Moderate
Proposed Approval 01/16/2009 74 FR Page 2936

Manitowoc Co, WI
From Former Subpart 1 to Marginal
Proposed Approval 01/16/2009 74 FR Page 2936


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