SIP Status Reports

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Status of Designated Areas for the Ozone-8Hr (1997) NAAQS

by Area Name, State
As of 10/01/2020




Ozone-8Hr (1997) Areas    Return to NAAQS selection
 
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Area
State Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Albany-Schenectady-Troy NY Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 970,156 2017-2019 0.060 Yes 3 / 3 03/25/2008
73 FR 15672
   
Allegan County Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 111,408 2017-2019 0.072 Yes 4 / 1 09/24/2010
75 FR 58312
05/12/2010 09/24/2010
75 FR 58312
Allentown-Bethlehem-Easton Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 712,481 2017-2019 0.069 Yes 4 / 0  
 
06/26/2007 04/03/2008
73 FR 11557
Altoona Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 127,089 2017-2019 0.063 Yes 4 / 0  
 
02/08/2007 08/01/2007
72 FR 41906
Amador and Calaveras Cos. (Central Mountain Cos.) CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 83,669 2017-2019 0.073 Yes 52 / 0 01/02/2013
77 FR 71551
   
Atlanta Area GA Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 5,260,436 2017-2019 0.073 Yes 54 / 50 04/06/2012
77 FR 13491
04/04/2012 01/02/2014
78 FR 72040
Baltimore Area MD Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Serious 2,662,691 2017-2019 0.075 Yes 58 / 55 06/25/2015
80 FR 29970
   
Baton Rouge Area LA Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 732,587 2017-2019 0.071 Yes 54 / 51 10/12/2010
75 FR 54778
08/31/2010 12/30/2011
76 FR 74000
Beaumont-Port Arthur Area TX Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 388,745 2017-2019 0.070 Yes 53 / 2  
 
12/16/2008 11/19/2010
75 FR 64675
Benton Harbor Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 156,813 2017-2019 0.069 Yes 4 / 0  
 
06/13/2006 05/16/2007
72 FR 27425
Benzie County Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 17,525 2017-2019 0.063 Yes 4 / 0  
 
05/09/2006 05/16/2007
72 FR 27425
Birmingham Area AL Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 853,551 2017-2019 0.067 Yes 4 / 1  
 
11/16/2005 06/12/2006
71 FR 27631
Boston-Lawrence-Worcester (E. Mass) Area MA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 5,723,468 2017-2019 0.069 Yes 53 / 39 06/28/2012
77 FR 31496
   
Boston-Manchester-Portsmouth (SE) Area NH Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 740,556 2017-2019 0.065 Yes 53 / 50 04/18/2011
76 FR 14805
03/02/2012 03/04/2013
78 FR 6741
Buffalo-Niagara Falls NY Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 1,135,509 2017-2019 0.066 Yes 53 / 50 01/06/2010
74 FR 63993
   
Canton-Massillon Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 375,586 2017-2019 0.067 Yes 4 / 0  
 
08/24/2006 06/15/2007
72 FR 27647
Cass County Area MI Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 52,293 2017-2019 0.070 Yes 3 / 0  
 
06/13/2006 05/16/2007
72 FR 27425
Charleston Area WV Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 248,549 2017-2019   Insufficient Data 4 / 0  
 
11/03/2005 08/10/2006
71 FR 39001
Charlotte-Gastonia-Rock Hill Area SC Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 178,913 2017-2019 0.070 Yes 52 / 50 04/06/2012
77 FR 13493
06/01/2011 12/26/2012
77 FR 75862
Charlotte-Gastonia-Rock Hill Area NC Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 1,789,799 2017-2019 0.070 Yes 53 / 51 04/06/2012
77 FR 13493
11/02/2011 01/02/2014
78 FR 72036
Chicago-Gary-Lake County Area IL Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 8,389,546 2017-2019 0.075 Yes 53 / 49 04/12/2010
75 FR 12088
07/23/2009 08/13/2012
77 FR 48062
Chicago-Gary-Lake County Area IN Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 660,348 2017-2019 0.075 Yes 53 / 44 04/12/2010
75 FR 12088
06/05/2009 05/11/2010
75 FR 26113
Chico CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 220,000 2017-2019 0.062 Yes 3 / 1 01/02/2013
77 FR 71551
   
Cincinnati-Hamilton Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 13,516 2017-2019 0.074 Yes 4 / 1 05/11/2010
75 FR 26118
01/21/2010 05/11/2010
75 FR 26118
Cincinnati-Hamilton Area KY Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 368,867 2017-2019 0.074 Yes 4 / 0  
 
01/28/2010 08/05/2010
75 FR 47218
Cincinnati-Hamilton Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 1,622,600 2017-2019 0.074 Yes 4 / 1 05/11/2010
75 FR 26118
12/14/2009 05/11/2010
75 FR 26118
Clarksville-Hopkinsville Area TN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 172,331 2017-2019 0.058 Yes 4 / 0  
 
08/10/2005 11/21/2005
70 FR 55559
Clarksville-Hopkinsville Area KY Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 73,955 2017-2019 0.058 Yes 4 / 0  
 
03/21/2005 02/24/2006
71 FR 4047
Clearfield and Indiana Counties Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 170,522 2017-2019 0.067 Yes 4 / 0  
 
06/14/2007 04/20/2009
74 FR 11674
Cleveland-Akron-Lorain Area OH Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 2,881,937 2017-2019 0.073 Yes 53 / 47 09/15/2009
74 FR 47414
03/17/2009 09/15/2009
74 FR 47414
Columbus Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 1,754,632 2017-2019 0.068 Yes 4 / 0 09/15/2009
74 FR 47404
03/17/2009 09/15/2009
74 FR 47404
Dallas-Fort Worth Area TX Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Serious 6,221,286 2017-2019 0.076 Yes 60 / 59 10/01/2015
80 FR 52630
See Note 12/08/2016
81 FR 78688
Dayton-Springfield Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 937,565 2017-2019 0.069 Yes 4 / 0  
 
11/06/2006 08/13/2007
72 FR 45169
Denver-Boulder-Greeley-Ft. Collins-Loveland CO Nonattainment (NAAQS revoked) 11/20/2007 Subpart 2/Marginal 3,330,139 2017-2019 0.078 Yes 3 / 1  
 
   
Detroit-Ann Arbor Area MI Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 4,804,635 2017-2019 0.072 Yes 3 / 2 06/29/2009
74 FR 30950
03/06/2009 06/29/2009
74 FR 30950
Door County Area WI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 27,785 2017-2019 0.070 Yes 4 / 1 07/12/2010
75 FR 39635
09/11/2009 07/12/2010
75 FR 39635
Erie Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 280,566 2017-2019 0.062 Yes 4 / 0  
 
04/24/2007 11/08/2007
72 FR 57207
Essex County (Whiteface Mtn.) NY Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 465 2017-2019 0.066 Yes 3 / 3 01/06/2010
74 FR 63993
   
Evansville Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 239,392 2017-2019 0.066 Yes 4 / 0  
 
06/02/2005 01/30/2006
70 FR 77026
Flint Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 514,109 2017-2019 0.064 Yes 4 / 0  
 
06/13/2006 05/16/2007
72 FR 27425
Fort Wayne Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 355,329 2017-2019 0.066 Yes 4 / 3  
 
05/30/2006 02/12/2007
72 FR 1292
Franklin County Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 149,618 2017-2019 0.059 Yes 4 / 0  
 
12/14/2006 07/25/2007
72 FR 40746
Fredericksburg Area VA Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 275,644 2017-2019 0.060 Yes 53 / 0  
 
05/02/2005 01/23/2006
70 FR 76165
Grand Rapids Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 866,423 2017-2019 0.067 Yes 4 / 0  
 
05/09/2006 05/16/2007
72 FR 27425
Greater Connecticut Area CT Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 1,629,115 2017-2019 0.075 Yes 53 / 52 09/30/2010
75 FR 53219
   
Greene County Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 33,165 2017-2019 0.065 Yes 4 / 0  
 
07/15/2005 12/29/2005
70 FR 69085
Greene County Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 38,686 2017-2019   Insufficient Data 4 / 0  
 
01/25/2007 04/20/2009
74 FR 11671
Hancock, Knox, Lincoln and Waldo Counties (Central Maine Coast) Area ME Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 97,265 2017-2019 0.069 Yes 4 / 0  
 
08/03/2006 01/10/2007
71 FR 71489
Harrisburg-Lebanon-Carlisle Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 683,043 2017-2019 0.066 Yes 4 / 0  
 
03/27/2007 07/25/2007
72 FR 40749
Haywood and Swain Counties (Great Smoky NP) Area NC Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 4,273 2017-2019 0.063 Yes 4 / 2  
 
07/24/2009 01/06/2010
74 FR 63995
Houston-Galveston-Brazoria Area TX Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Severe 15 5,891,999 2017-2019 0.081 Yes 62 / 61 01/29/2016
80 FR 81466
See Note 12/08/2016
81 FR 78691
Huntington-Ashland Area WV Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 138,800 2017-2019 0.062 Yes 4 / 0  
 
05/17/2006 10/16/2006
71 FR 54421
Huntington-Ashland Area KY Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 49,542 2017-2019 0.062 Yes 4 / 0  
 
09/29/2006 09/04/2007
72 FR 43172
Huron County Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 33,118 2017-2019 0.064 Yes 4 / 0  
 
05/09/2006 05/16/2007
72 FR 27425
Imperial County Area CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 174,528 2017-2019 0.079 Yes 53 / 49 12/22/2014
79 FR 63332
   
Indianapolis Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 1,834,672 2017-2019 0.070 Yes 4 / 0  
 
03/26/2007 10/19/2007
72 FR 59210
Inland Sheboygan County WI Nonattainment (NAAQS revoked) 07/15/2019 Subpart 2/Moderate 53,851 2017-2019 0.066 Yes 52 / 42 03/31/2011
76 FR 11080
10/09/2019  
Jackson County Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 42,376 2017-2019 0.062 Yes 4 / 0  
 
07/15/2005 12/29/2005
70 FR 69085
Jamestown NY Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 134,905 2017-2019 0.067 Yes 52 / 48 01/06/2010
74 FR 63993
   
Jefferson County Area NY Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 116,229 2017-2019 0.063 Yes 53 / 49 03/25/2008
73 FR 15672
   
Johnstown Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 143,679 2017-2019 0.058 Yes 4 / 0  
 
03/27/2007 08/01/2007
72 FR 41903
Kalamazoo-Battle Creek Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 462,735 2017-2019 0.066 Yes 4 / 0  
 
05/09/2006 05/16/2007
72 FR 27425
Kent and Queen Anne's Counties Area MD Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 67,995 2017-2019 0.068 Yes 3 / 2  
 
05/19/2006 01/22/2007
71 FR 76920
Kern County (Eastern Kern) CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 95,314 2017-2019 0.081 Yes 52 / 0 01/02/2013
77 FR 71551
   
Kewaunee County Area WI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 20,574 2017-2019 0.066 Yes 4 / 0  
 
06/12/2007 05/21/2008
73 FR 29436
Knoxville Area TN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 821,883 2017-2019 0.065 Yes 4 / 0 10/12/2010
75 FR 62470
07/14/2010 03/08/2011
76 FR 12587
La Porte County Area IN Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 111,467 2017-2019 0.076 Yes 3 / 0  
 
05/30/2006 07/19/2007
72 FR 39574
Lancaster Area PA Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 519,445 2017-2019 0.067 Yes 3 / 1  
 
08/01/2006 07/06/2007
72 FR 36889
Lansing-East Lansing Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 464,036 2017-2019 0.063 Yes 4 / 0  
 
05/09/2006 05/16/2007
72 FR 27425
Las Vegas NV Maintenance (NAAQS revoked) 09/13/2004 Subpart 2/Marginal 1,918,819 2017-2019 0.073 Yes 3 / 3 05/31/2011
76 FR 17343
04/11/2011 02/07/2013
78 FR 1149
Lima Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 106,331 2017-2019 0.069 Yes 4 / 0  
 
08/24/2006 06/15/2007
72 FR 27647
Los Angeles and San Bernardino Counties (Western Mojave Desert) CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Severe 15 868,350 2017-2019 0.095 No 108 / 63  
 
   
Los Angeles-South Coast Air Basin Area CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Extreme 15,715,184 2017-2019 0.108 No 61 / 47  
 
   
Louisville Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 184,810 2017-2019 0.071 Yes 4 / 0  
 
11/15/2006 07/19/2007
72 FR 39571
Louisville Area KY Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 875,731 2017-2019 0.071 Yes 4 / 0  
 
06/07/2006 08/06/2007
72 FR 36601
Macon Area GA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 158,123 2017-2019 0.064 Yes 4 / 0  
 
06/15/2007 10/19/2007
72 FR 53432
Madison and Page Counties (Shenandoah NP) Area VA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 2,026 2017-2019 0.061 Yes 4 / 0  
 
09/21/2005 02/02/2006
71 FR 24
Manitowoc County Area WI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 81,442 2017-2019 0.071 Yes 4 / 1 07/12/2010
75 FR 39635
09/11/2009 07/12/2010
75 FR 39635
Mariposa and Tuolumne Cos. (Southern Mountain Counties) CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 73,616 2017-2019 0.077 Yes 52 / 0 01/02/2013
77 FR 71551
   
Mason County Area MI Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 28,705 2017-2019 0.063 Yes 4 / 0  
 
05/09/2006 05/16/2007
72 FR 27425
Memphis Area AR Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 50,902 2017-2019 0.069 Yes 54 / 4  
 
02/27/2009 04/23/2010
75 FR 14077
Memphis Area TN Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 927,644 2017-2019 0.069 Yes 54 / 2  
 
02/26/2009 02/03/2010
75 FR 56
Milwaukee-Racine Area WI Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 1,917,742 2017-2019 0.075 Yes 53 / 44 03/31/2011
76 FR 11080
09/11/2009 07/31/2012
77 FR 45252
Morongo Band of Mission Indians CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Severe 17 913 2017-2019 0.101 No 57 / 0  
 
   
Muncie Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 117,671 2017-2019 0.064 Yes 4 / 0  
 
08/25/2005 01/03/2006
70 FR 69443
Murray County (Chattahoochee Nat Forest) Area GA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 6,231 2017-2019 0.065 Yes 4 / 0  
 
06/15/2007 11/15/2007
72 FR 58538
Muskegon Area MI Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 172,188 2017-2019 0.074 Yes 3 / 0  
 
06/13/2006 05/16/2007
72 FR 27425
Nevada County (Western part) CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 82,393 2017-2019 0.085 No 52 / 46 01/02/2013
77 FR 71551
   
New York-N. New Jersey-Long Island Area CT Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 1,944,982 2017-2019 0.082 Yes 53 / 52 07/18/2012
77 FR 36163
   
New York-N. New Jersey-Long Island Area NY Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 12,268,815 2017-2019 0.082 Yes 53 / 51 07/18/2012
77 FR 36163
   
New York-N. New Jersey-Long Island Area NJ Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 6,003,340 2017-2019 0.082 Yes 53 / 44 07/18/2012
77 FR 36163
   
Norfolk-Virginia Beach-Newport News (Hampton Roads) Area VA Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 1,632,100 2017-2019 0.062 Yes 3 / 1  
 
10/16/2006 06/01/2007
72 FR 30490
OTR PA               46 / 41  
 
   
OTR RI               46 / 46  
 
   
OTR VA               46 / 34  
 
   
OTR VT               46 / 46  
 
   
OTR NJ               46 / 38  
 
   
OTR NY               46 / 45  
 
   
OTR CT               46 / 46  
 
   
OTR DE               46 / 46  
 
   
OTR MA               46 / 34  
 
   
OTR NH               46 / 46  
 
   
OTR ME               46 / 46  
 
   
OTR MD               46 / 46  
 
   
OTR DC               46 / 46  
 
   
Parkersburg-Marietta Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 61,778 2017-2019 0.063 Yes 4 / 0  
 
11/17/2006 06/15/2007
72 FR 27651
Parkersburg-Marietta Area WV Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 86,956 2017-2019 0.063 Yes 4 / 0  
 
09/08/2006 06/07/2007
72 FR 25967
Pechanga Band of Luiseņo Mission Indians of the Pechanga Reservation CA Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Severe 17 2,844 2017-2019 0.079 Yes 57 / 0  
 
  04/03/2015
80 FR 18120
Philadelphia-Wilmington-Atlantic City Area DE Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 897,934 2017-2019 0.076 Yes 53 / 53 04/25/2012
77 FR 17341
   
Philadelphia-Wilmington-Atlantic City Area MD Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 101,108 2017-2019 0.076 Yes 53 / 53 04/25/2012
77 FR 17341
   
Philadelphia-Wilmington-Atlantic City Area NJ Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 2,788,554 2017-2019 0.076 Yes 53 / 45 04/25/2012
77 FR 17341
   
Philadelphia-Wilmington-Atlantic City Area PA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 4,008,994 2017-2019 0.076 Yes 53 / 48 04/25/2012
77 FR 17341
   
Phoenix-Mesa AZ Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 3,848,627 2017-2019 0.077 Yes 3 / 1  
 
03/23/2009 10/17/2014
79 FR 55645
Pittsburgh-Beaver Valley PA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 2,356,285 2017-2019 0.068 Yes 53 / 48 05/06/2013
78 FR 20244
   
Portland Area ME Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 481,641 2017-2019 0.064 Yes 3 / 2  
 
08/03/2006 01/10/2007
71 FR 71489
Poughkeepsie Area NY Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 770,011 2017-2019 0.065 Yes 53 / 50 01/06/2010
74 FR 63993
   
Providence (all of RI) Area RI Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 1,052,567 2017-2019 0.073 Yes 53 / 51 11/22/2010
75 FR 64949
   
Raleigh-Durham-Chapel Hill Area NC Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 1,663,630 2017-2019 0.064 Yes 4 / 2  
 
06/07/2007 12/26/2007
72 FR 72948
Reading Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 411,442 2017-2019 0.069 Yes 4 / 0  
 
01/25/2007 09/10/2007
72 FR 48559
Richmond-Petersburg Area VA Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 1,042,651 2017-2019 0.065 Yes 3 / 1  
 
09/25/2006 06/18/2007
72 FR 30485
Riverside County (Coachella Valley) Area CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Extreme 425,425 2017-2019 0.089 No 60 / 44  
 
   
Rochester NY Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 1,114,402 2017-2019 0.065 Yes 3 / 3 03/25/2008
73 FR 15672
   
Rocky Mount Area NC Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 152,392 2017-2019 0.061 Yes 4 / 2  
 
06/19/2006 01/05/2007
71 FR 64891
Sacramento Metro Area CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Severe 15 2,243,911 2017-2019 0.086 No 256 / 212  
 
   
San Diego CA Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 3,093,345 2017-2019 0.082 Yes 53 / 1  
 
12/28/2012 07/05/2013
78 FR 33230
San Francisco Bay Area CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 6,970,997 2017-2019 0.073 Yes 3 / 1  
 
   
San Joaquin Valley Area CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Extreme 3,842,586 2017-2019 0.088 No 61 / 59  
 
   
Scranton-Wilkes-Barre Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 733,473 2017-2019 0.065 Yes 4 / 0  
 
06/12/2007 12/19/2007
72 FR 64948
Shoreline Sheboygan County WI Nonattainment (NAAQS revoked) 07/15/2019 Subpart 2/Moderate 61,656 2017-2019 0.075 Yes 52 / 42 03/31/2011
76 FR 11080
02/11/2020  
South Bend-Elkhart Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 464,490 2017-2019 0.069 Yes 4 / 0  
 
05/30/2006 07/19/2007
72 FR 39577
Springfield (W. Mass) Area MA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 824,161 2017-2019 0.069 Yes 53 / 39 07/19/2012
77 FR 36404
   
St. Louis Area MO Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 1,998,958 2017-2019 0.071 Yes 53 / 49 05/30/2012
77 FR 25363
11/03/2011 02/20/2015
80 FR 9207
St. Louis Area IL Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 595,280 2017-2019 0.071 Yes 53 / 49 07/11/2011
76 FR 33647
05/26/2010 06/12/2012
77 FR 34819
State College Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 153,990 2017-2019 0.062 Yes 4 / 0  
 
06/12/2007 12/14/2007
72 FR 63990
Steubenville-Weirton Area WV Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 54,745 2017-2019 0.062 Yes 4 / 0  
 
08/03/2006 06/13/2007
72 FR 27060
Steubenville-Weirton Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 69,709 2017-2019 0.062 Yes 4 / 0  
 
10/03/2006 06/15/2007
72 FR 27639
Sutter County (part) (Sutter Buttes) CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Marginal 33 2017-2019   Insufficient Data 3 / 0 01/02/2013
77 FR 71551
   
Terre Haute Area IN Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 107,848 2017-2019 0.066 Yes 4 / 0  
 
07/05/2005 02/06/2006
71 FR 541
Tioga County Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 41,981 2017-2019 0.060 Yes 4 / 0  
 
09/01/2006 07/06/2007
72 FR 36892
Toledo Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 567,303 2017-2019 0.070 Yes 4 / 0  
 
12/22/2006 08/09/2007
72 FR 44784
Ventura County (part) Area CA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Serious 823,360 2017-2019 0.076 Yes 59 / 39 01/02/2013
77 FR 71551
   
Washington Area DC Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 601,723 2017-2019 0.072 Yes 53 / 52 03/29/2012
77 FR 11739
   
Washington Area MD Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 2,303,870 2017-2019 0.072 Yes 53 / 53 03/29/2012
77 FR 11739
   
Washington Area VA Nonattainment (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 2,230,623 2017-2019 0.072 Yes 53 / 46 03/29/2012
77 FR 11739
   
Wheeling Area WV Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 77,550 2017-2019 0.063 Yes 4 / 0  
 
07/24/2006 06/14/2007
72 FR 27247
Wheeling Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 70,400 2017-2019 0.063 Yes 4 / 0  
 
08/24/2006 06/15/2007
72 FR 27643
York Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 536,379 2017-2019 0.064 Yes 4 / 0  
 
06/14/2007 02/13/2008
73 FR 2163
Youngstown-Warren-Sharon Area PA Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 116,638 2017-2019 0.067 Yes 4 / 0  
 
03/27/2007 11/19/2007
72 FR 59213
Youngstown-Warren-Sharon Area OH Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 556,976 2017-2019 0.067 Yes 4 / 0  
 
12/04/2006 06/12/2007
72 FR 32190
We have made our best effort to ensure that the data contained in these reports is accurate. We note that there may be brief delays in updating the reports as we receive new state submissions and we take rulemaking action on plans. In order to assist us in providing accurate information, we request that you contact us by clicking on the "Contact Us" link near the top of this page with any comments regarding or corrections to the posted information, including concerns about whether the entries reflect the most recent status.

Current and historical design value data can be found on the EPA Air Quality Design Values website and the EPA Green Book contains comprehensive nonattainment area, designation status, and historical information.