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8-Hour Ozone (1997) Attainment Date Extensions - NAAQS Revoked
8-Hour Ozone (1997) Attainment Date Extensions - NAAQS Revoked
Data is current as of October 31, 2024Previous Ordered by Classification
The 1997 8-hour Ozone NAAQS was revoked effective April 6, 2015 (80 FR 12264).
Click on the 'FR' link to view the Federal Register Notice
SERIOUS | |||
Baltimore, MD | |||
Extension from 6/15/2010 to 6/15/2011 | |||
Proposed Approval | 07/23/2010 | 75 FR 43114 | |
Direct Final | 07/23/2010 | 75 FR 43069 | Effective: 09/21/2010 |
Withdrawal | 09/08/2010 | 75 FR 54497 | |
Final Approval | 03/11/2011 | 76 FR 13289 | Effective: 04/11/2011 |
MODERATE | |||
Atlanta, GA | |||
Extension from 6/15/2010 to 6/15/2011 | |||
Proposed Approval | 09/17/2010 | 75 FR 56943 | |
Final Approval | 11/30/2010 | 75 FR 73969 | Effective: 12/30/2010 |
Charlotte-Gastonia-Rock Hill, NC-SC | |||
Extension from 6/15/2010 to 6/15/2011 | |||
Proposed Approval | 08/04/2010 | 75 FR 46881 | |
Final Approval | 05/31/2011 | 76 FR 31245 | Effective: 06/30/2011 |
Mariposa and Tuolumne Cos. (Southern Mountain Counties), CA | |||
Extension from 6/15/2010 to 6/15/2011 | |||
Proposed Approval | 09/14/2012 | 77 FR 56797 | |
Direct Final | 09/14/2012 | 77 FR 56775 | Effective: 11/13/2012 |
Withdrawal | 11/07/2012 | 77 FR 66715 | Effective: 11/07/2012 |
Extension from 6/15/2010 to 6/15/2011 | |||
Final Approval | 12/03/2012 | 77 FR 71551 | Effective: 01/02/2013 |
Nevada County (Western part), CA | |||
Extension from 6/15/2010 to 6/15/2011 | |||
Proposed Approval | 09/14/2012 | 77 FR 56797 | |
Direct Final | 09/14/2012 | 77 FR 56775 | Effective: 11/13/2012 |
Withdrawal | 11/07/2012 | 77 FR 66715 | Effective: 11/07/2012 |
Extension from 6/15/2010 to 6/15/2011 | |||
Final Approval | 12/03/2012 | 77 FR 71551 | Effective: 01/02/2013 |
Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | |||
Extension from 6/15/2010 to 6/15/2011 (NJ portion) | |||
Proposed Approval | 11/09/2010 | 75 FR 68733 | |
Extension from 6/15/2010 to 6/15/2011 (DE, MD, PA portions) | |||
Proposed Approval | 11/09/2010 | 75 FR 68736 | |
Extension from 6/15/2010 to 6/15/2011 (NJ portion) | |||
Final Approval | 01/21/2011 | 76 FR 3838 | Effective: 02/22/2011 |
Extension from 6/15/2010 to 6/15/2011 (DE, MD, PA portions) | |||
Final Approval | 01/21/2011 | 76 FR 3840 | Effective: 02/22/2011 |
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