Green Book

You are here: EPA Home > 8-Hour Ozone (1997) Attainment Date Extensions - NAAQS Revoked

8-Hour Ozone (1997) Attainment Date Extensions - NAAQS Revoked

As of February 13, 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The 1997 8-hour Ozone NAAQS was revoked effective April 6, 2015 (80 FR 12264).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


SERIOUS

Baltimore, MD
Extension from 6/15/2010 to 6/15/2011
Proposed Approval 07/23/2010 75 FR Page 43114
Direct Final 07/23/2010 75 FR Page 43069 Effective: 09/21/2010
Withdrawal 09/08/2010 75 FR Page 54497
Final Approval 03/11/2011 76 FR Page 13289 Effective: 04/11/2011

MODERATE

Atlanta, GA
Extension from 6/15/2010 to 6/15/2011
Proposed Approval 09/17/2010 75 FR Page 56943
Final Approval 11/30/2010 75 FR Page 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 Page 46881
Final Approval 05/31/2011 76 FR Page 31245 Effective: 06/30/2011

Mariposa and Tuolumne Cos (Southern Mtn), CA
Extension from 6/15/2010 to 6/15/2011
Proposed Approval 09/14/2012 77 FR Page 56797
Direct Final 09/14/2012 77 FR Page 56775 Effective: 11/13/2012
Withdrawal 11/07/2012 77 FR Page 66715
Extension from 6/15/2010 to 6/15/2011
Final Approval 12/03/2012 77 FR Page 71551 Effective: 01/02/2013

Nevada Co. (Western part), CA
Extension from 6/15/2010 to 6/15/2011
Proposed Approval 09/14/2012 77 FR Page 56797
Direct Final 09/14/2012 77 FR Page 56775 Effective: 11/13/2012
Withdrawal 11/07/2012 77 FR Page 66715
Extension from 6/15/2010 to 6/15/2011
Final Approval 12/03/2012 77 FR Page 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 Page 68733
Extension from 6/15/2010 to 6/15/2011 (DE, MD, PA portions)
Proposed Approval 11/09/2010 75 FR Page 68736
Extension from 6/15/2010 to 6/15/2011 (NJ portion)
Final Approval 01/21/2011 76 FR Page 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 Page 3840 Effective: 02/22/2011


Go Top