Jump to main content.


Adjustments to Original 8-Hr Ozone (1997) 2004 Nonattainment Area Baseline

As of July 02, 2014
Thirteen (13) EAC areas were designated attainment on April 15, 2008. Details can be seen here.
BOUNDARY CHANGE
September 17, 2004 Effective September 13, 2004
Federal Register ( 69 FR Page 55956 )
Las Vegas, NV - NEVADA
The revised designation defines a smaller nonattainment area around the City of Las Vegas and designates the remainder of Clark County with the rest of the State as ``unclassifiable/attainment.''
 
October 13, 2006 Effective October 13, 2006
Federal Register ( 71 FR Page 60429 )
Macon, GA - GEORGIA
This action corrects the 8-hour ozone nonattainment boundary for Monroe County, Georgia by deleting a highway from the boundary description, and clarifies the 8-hour ozone nonattainment boundary for Murray County, Georgia by adding a boundary description.
 
CHANGE TO A LOWER CLASSIFICATION
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
Cass Co, MI - MICHIGAN
Reclassify from Moderate to Marginal
 
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
Detroit-Ann Arbor, MI - MICHIGAN
Reclassify from Moderate to Marginal
 
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
Kent and Queen Anne's Cos, MD - MARYLAND
Reclassify from Moderate to Marginal
 
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
La Porte Co., IN - INDIANA
Reclassify from Moderate to Marginal
 
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
Lancaster, PA - PENNSYLVANIA
Reclassify from Moderate to Marginal
 
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
Memphis, TN-AR - ARKANSAS
Reclassify from Moderate to Marginal
 
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
Memphis, TN-AR - TENNESSEE
Reclassify from Moderate to Marginal
 
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
Muskegon, MI - MICHIGAN
Reclassify from Moderate to Marginal
 
September 22, 2004 Effective November 22, 2004
Federal Register ( 69 FR Page 56697 )
Richmond-Petersburg, VA - VIRGINIA
Reclassify from Moderate to Marginal
 
CHANGE FROM SUBPART 1 TO SUBPART 2
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Albany-Schenectady-Troy, NY - NEW YORK
Reclassify from Former Subpart 1 to Marginal
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Amador and Calaveras Cos. (Central Mountain Cos.), CA - CALIFORNIA
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Buffalo-Niagara Falls, NY - NEW YORK
Reclassify from Former Subpart 1 to Moderate
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Chico, CA - CALIFORNIA
Reclassify from Former Subpart 1 to Marginal
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - COLORADO
Reclassify from Former Subpart 1 to Marginal
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Essex Co (Whiteface Mtn), NY - NEW YORK
Reclassify from Former Subpart 1 to Marginal
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Jamestown, NY - NEW YORK
Reclassify from Former Subpart 1 to Moderate
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Kern Co (Eastern Kern), CA - CALIFORNIA
Reclassify from Former Subpart 1 to Moderate
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Las Vegas, NV - NEVADA
Reclassify from Former Subpart 1 to Marginal
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Mariposa and Tuolumne Cos (Southern Mtn), CA - CALIFORNIA
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Nevada Co. (Western part), CA - CALIFORNIA
Reclassify from Former Subpart 1 to Moderate
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Phoenix-Mesa, AZ - ARIZONA
Reclassify from Former Subpart 1 to Marginal
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Pittsburgh-Beaver Valley, PA - PENNSYLVANIA
Reclassify from Former Subpart 1 to Moderate
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Rochester, NY - NEW YORK
Reclassify from Former Subpart 1 to Marginal
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
San Diego, CA - CALIFORNIA
Reclassify from Former Subpart 1 to Moderate
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Sutter Co (Sutter Buttes), CA - CALIFORNIA
Reclassify from Former Subpart 1 to Marginal
 
CHANGE TO A HIGHER CLASSIFICATION (BUMP-UPS)
February 13, 2008 Effective March 14, 2008
Federal Register ( 73 FR Page 8209 )
Imperial Co, CA - CALIFORNIA
Reclassify from Marginal to Moderate
 
March 06, 2008 Effective April 07, 2008
Federal Register ( 73 FR Page 12013 )
Atlanta, GA - GEORGIA
Reclassify from Marginal to Moderate
 
March 18, 2008 Effective April 17, 2008
Federal Register ( 73 FR Page 14391 )
Beaumont-Port Arthur, TX - TEXAS
Reclassify from Marginal to Moderate
 
March 21, 2008 Effective April 21, 2008
Federal Register ( 73 FR Page 15087 )
Baton Rouge, LA - LOUISIANA
Reclassify from Marginal to Moderate
 
March 28, 2008 Effective April 28, 2008
Federal Register ( 73 FR Page 16547 )
Memphis, TN-AR - ARKANSAS
Reclassify from Marginal to Moderate
 
March 28, 2008 Effective April 28, 2008
Federal Register ( 73 FR Page 16547 )
Memphis, TN-AR - TENNESSEE
Reclassify from Marginal to Moderate
 
May 20, 2008 Effective June 19, 2008
Federal Register ( 73 FR Page 29073 )
Ventura Co, CA - CALIFORNIA
Reclassify from Moderate to Serious
 
October 01, 2008 Effective October 31, 2008
Federal Register ( 73 FR Page 56983 )
Houston-Galveston-Brazoria, TX - TEXAS
Reclassify from Moderate to Severe-15
 
May 05, 2010 Effective June 04, 2010
Federal Register ( 75 FR Page 24409 )
Los Angeles-South Coast Air Basin, CA - CALIFORNIA
Reclassify from Severe-17 to Extreme
 
May 05, 2010 Effective June 04, 2010
Federal Register ( 75 FR Page 24409 )
Riverside Co. (Coachella Valley), CA - CALIFORNIA
Reclassify from Serious to Severe-15
 
May 05, 2010 Effective June 04, 2010
Federal Register ( 75 FR Page 24409 )
Sacramento Metro, CA - CALIFORNIA
Reclassify from Serious to Severe-15
 
May 05, 2010 Effective June 04, 2010
Federal Register ( 75 FR Page 24409 )
San Joaquin Valley, CA - CALIFORNIA
Reclassify from Serious to Extreme
 
December 20, 2010 Effective January 19, 2011
Federal Register ( 75 FR Page 79302 )
Dallas-Fort Worth, TX - TEXAS
Reclassify from Moderate to Serious
 
February 01, 2012 Effective March 02, 2012
Federal Register ( 77 FR Page 4901 )
Baltimore, MD - MARYLAND
Reclassify from Moderate to Serious
 
May 08, 2012 Effective June 07, 2012
Federal Register ( 77 FR Page 26950 )
Los Angeles-San Bernardino Cos. (W Mojave Desert), CA - CALIFORNIA
Reclassify from Moderate to Severe-15
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Amador and Calaveras Cos. (Central Mountain Cos.), CA - CALIFORNIA
Reclassify from Former Subpart 1 to Moderate
 
May 14, 2012 Effective June 13, 2012
Federal Register ( 77 FR Page 28424 )
Mariposa and Tuolumne Cos (Southern Mtn), CA - CALIFORNIA
Reclassify from Former Subpart 1 to Moderate
 
DESIGNATION TO NONATTAINMENT
April 02, 2008 Effective April 15, 2008
Federal Register ( 73 FR Page 17897 )
Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - COLORADO
 


Local Navigation


Jump to main content.