Green Book

You are here: EPA Home > Green Book > Adjustments to Original 8-Hour Ozone (2008) Nonattainment Area Baseline

Adjustments to Original 8-Hour Ozone (2008) Nonattainment Area Baseline

Data is current as of April 30, 2020


Effective October 15, 2019, the initial designation of the SO2 (2010) Williamson County, IL nonattainment area was changed from nonattainment to attainment/unclassifiable (84 FR 48286).

AREA SPLIT
July 15, 2019, Effective July 15, 2019 ( 84 FR 33699 )
Inland Sheboygan County, WI - WISCONSIN
 
July 15, 2019, Effective July 15, 2019 ( 84 FR 33699 )
Shoreline Sheboygan County, WI - WISCONSIN
 
CHANGE TO A HIGHER CLASSIFICATION (BUMP-UPS)
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Atlanta, GA - GEORGIA
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Chicago-Naperville, IL-IN-WI - ILLINOIS
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Chicago-Naperville, IL-IN-WI - INDIANA
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Chicago-Naperville, IL-IN-WI - WISCONSIN
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - COLORADO
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Greater Connecticut, CT - CONNECTICUT
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Imperial County, CA - CALIFORNIA
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Kern Co (Eastern Kern), CA - CALIFORNIA
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Mariposa County, CA - CALIFORNIA
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Nevada Co. (Western part), CA - CALIFORNIA
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
New York-N. New Jersey-Long Island, NY-NJ-CT - CONNECTICUT
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
New York-N. New Jersey-Long Island, NY-NJ-CT - NEW JERSEY
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
New York-N. New Jersey-Long Island, NY-NJ-CT - NEW YORK
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
Phoenix-Mesa, AZ - ARIZONA
Reclassify from Marginal to Moderate
 
May 04, 2016, Effective June 03, 2016 ( 81 FR 26697 )
San Diego County, CA - CALIFORNIA
Reclassify from Marginal to Moderate
 
December 14, 2016, Effective December 14, 2016 ( 81 FR 90207 )
Houston-Galveston-Brazoria, TX - TEXAS
Reclassify from Marginal to Moderate
 
December 19, 2016, Effective December 19, 2016 ( 81 FR 91841 )
Inland Sheboygan County, WI - WISCONSIN
Reclassify from Marginal to Moderate
 
December 19, 2016, Effective December 19, 2016 ( 81 FR 91841 )
Shoreline Sheboygan County, WI - WISCONSIN
Reclassify from Marginal to Moderate
 
July 05, 2018, Effective August 06, 2018 ( 83 FR 31334 )
Kern Co (Eastern Kern), CA - CALIFORNIA
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
Chicago-Naperville, IL-IN-WI - ILLINOIS
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
Chicago-Naperville, IL-IN-WI - INDIANA
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
Chicago-Naperville, IL-IN-WI - WISCONSIN
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
Dallas-Fort Worth, TX - TEXAS
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
Greater Connecticut, CT - CONNECTICUT
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
Houston-Galveston-Brazoria, TX - TEXAS
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
Nevada Co. (Western part), CA - CALIFORNIA
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
New York-N. New Jersey-Long Island, NY-NJ-CT - CONNECTICUT
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
New York-N. New Jersey-Long Island, NY-NJ-CT - NEW JERSEY
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
New York-N. New Jersey-Long Island, NY-NJ-CT - NEW YORK
Reclassify from Moderate to Serious
 
August 23, 2019, Effective September 23, 2019 ( 84 FR 44238 )
San Diego County, CA - CALIFORNIA
Reclassify from Moderate to Serious
 
December 26, 2019, Effective January 27, 2020 ( 84 FR 70897 )
Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - COLORADO
Reclassify from Moderate to Serious