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 Code of Federal Regulations (Last Updated: April 5, 2024)
 Title 40 - Protection of Environment
 Chapter I - Environmental Protection Agency
 SubChapter C - Air Programs
 Part 81 - Designation of Areas for Air Quality Planning Purposes
 Subpart C - Section 107 Attainment Status Designations

  § 81.315 - Indiana.  

Latest version.

  • § 81.315 Indiana.

    Indiana—1971 Sulfur Dioxide NAAQS

    [Primary and Secondary]

    Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
    Dearborn CountyX
    Gibson County 1 X
    Jefferson County 1 X
    Lake CountyX
    LaPorte CountyX
    Marion CountyX
    Porter County:
    An area bound on the north by Lake Michigan, on the west by the Lake-Porter County line, on the south by I–80 and 90 and on the east by the LaPorte-Porter County line .....X
    The remainder of Porter County......X
    Vigo CountyX
    Warrick County 1 X
    Wayne CountyX
    All portions of all other Indiana CountiesX

    1 EPA designation replaces State designation.

    Indiana–2010 Sulfur Dioxide NAAQS

    [Primary]

    Designated area1 Designation
    Date2 Type
    Huntington, INNonattainment.
    Huntington County (part)
    Huntington Township
    Indianapolis, IN5/21/20Attainment.
    Marion County (part)
    Wayne Township, Center Township, Perry Township
    Morgan County, IN9/16/2020Attainment.
    Morgan County (part)
    Clay Township, Washington Township
    Southwest Indiana, IN4/30/2021Attainment.
    Daviess County (part)
    Veale Township
    Pike County (part)
    Washington Township
    Terre Haute, IN7/8/2019Attainment.
    Vigo County
    Fayette Township, Harrison Township
    Gibson County, IN9/12/16Attainment/Unclassifiable.
    Gibson County
    Jefferson County, IN9/12/16Attainment/Unclassifiable.
    Jefferson County (part)
    Graham, Lancaster, Madison, Monroe, Republican, Shelby, and Smyrna Townships
    LaPorte County, IN9/12/16Attainment/Unclassifiable
    LaPorte County
    Posey County, IN9/12/16Attainment/Unclassifiable.
    Posey County (part)
    Bethel, Center, Harmony, Lynn, Marrs, Robb, Robinson, and Smith Townships
    Spencer County, IN9/12/16Attainment/Unclassifiable.
    Spencer County (part)
    Ohio Township north of UTM 4187.580 km northing, and Carter, Clay, Grass, Hammond, Harrison, and Jackson Townships
    Adams CountyAttainment/Unclassifiable.
    Allen CountyAttainment/Unclassifiable.
    Bartholomew CountyAttainment/Unclassifiable.
    Benton CountyAttainment/Unclassifiable.
    Blackford CountyAttainment/Unclassifiable.
    Boone CountyAttainment/Unclassifiable.
    Brown CountyAttainment/Unclassifiable.
    Carroll CountyAttainment/Unclassifiable.
    Cass CountyAttainment/Unclassifiable.
    Clark CountyAttainment/Unclassifiable.
    Clay CountyAttainment/Unclassifiable.
    Clinton CountyAttainment/Unclassifiable.
    Crawford CountyAttainment/Unclassifiable.
    Daviess County (part) (remainder)Attainment/Unclassifiable.
    Dearborn CountyAttainment/Unclassifiable.
    Decatur CountyAttainment/Unclassifiable.
    DeKalb CountyAttainment/Unclassifiable.
    Delaware CountyAttainment/Unclassifiable.
    Dubois CountyAttainment/Unclassifiable.
    Elkhart CountyAttainment/Unclassifiable.
    Fayette CountyAttainment/Unclassifiable.
    Floyd CountyAttainment/Unclassifiable.
    Fountain CountyAttainment/Unclassifiable.
    Franklin CountyAttainment/Unclassifiable.
    Fulton CountyAttainment/Unclassifiable.
    Grant CountyAttainment/Unclassifiable.
    Greene CountyAttainment/Unclassifiable.
    Hamilton CountyAttainment/Unclassifiable.
    Hancock CountyAttainment/Unclassifiable.
    Harrison CountyAttainment/Unclassifiable.
    Hendricks CountyAttainment/Unclassifiable.
    Henry CountyAttainment/Unclassifiable.
    Howard CountyAttainment/Unclassifiable.
    Huntington County (part) (remainder)Attainment/Unclassifiable.
    Jackson CountyAttainment/Unclassifiable.
    Jasper CountyAttainment/Unclassifiable.
    Jay CountyAttainment/Unclassifiable.
    Jefferson CountyAttainment/Unclassifiable.
    Jennings CountyAttainment/Unclassifiable.
    Johnson CountyAttainment/Unclassifiable.
    Knox CountyAttainment/Unclassifiable.
    Kosciusko CountyAttainment/Unclassifiable.
    LaGrange CountyAttainment/Unclassifiable.
    Lake CountyAttainment/Unclassifiable.
    Lawrence CountyAttainment/Unclassifiable.
    Madison CountyAttainment/Unclassifiable.
    Marion County (part) (remainder)Attainment/Unclassifiable.
    Marshall CountyAttainment/Unclassifiable.
    Martin CountyAttainment/Unclassifiable.
    Miami CountyAttainment/Unclassifiable.
    Monroe CountyAttainment/Unclassifiable.
    Montgomery CountyAttainment/Unclassifiable.
    Morgan County (part) (remainder)Attainment/Unclassifiable.
    Newton CountyAttainment/Unclassifiable.
    Noble CountyAttainment/Unclassifiable.
    Ohio CountyAttainment/Unclassifiable.
    Orange CountyAttainment/Unclassifiable.
    Owen CountyAttainment/Unclassifiable.
    Parke CountyAttainment/Unclassifiable.
    Perry CountyAttainment/Unclassifiable.
    Pike County (part) (remainder)Attainment/Unclassifiable.
    Porter County4/30/2021Attainment/Unclassifiable.
    Posey CountyAttainment/Unclassifiable.
    Pulaski CountyAttainment/Unclassifiable.
    Putnam CountyAttainment/Unclassifiable.
    Randolph CountyAttainment/Unclassifiable.
    Ripley CountyAttainment/Unclassifiable.
    Rush CountyAttainment/Unclassifiable.
    St. Joseph CountyAttainment/Unclassifiable.
    Scott CountyAttainment/Unclassifiable.
    Shelby CountyAttainment/Unclassifiable.
    Spencer CountyAttainment/Unclassifiable.
    Starke CountyAttainment/Unclassifiable.
    Steuben CountyAttainment/Unclassifiable.
    Sullivan CountyAttainment/Unclassifiable.
    Switzerland CountyAttainment/Unclassifiable.
    Tippecanoe CountyAttainment/Unclassifiable.
    Tipton CountyAttainment/Unclassifiable.
    Union CountyAttainment/Unclassifiable.
    Vanderburgh CountyAttainment/Unclassifiable.
    Vermillion CountyAttainment/Unclassifiable.
    Vigo County (part) (remainder)Attainment/Unclassifiable.
    Wabash CountyAttainment/Unclassifiable.
    Warren CountyAttainment/Unclassifiable.
    Warrick CountyAttainment/Unclassifiable.
    Washington CountyAttainment/Unclassifiable.
    Wayne CountyAttainment/Unclassifiable.
    Wells CountyAttainment/Unclassifiable.
    White CountyAttainment/Unclassifiable.
    Whitley CountyAttainment/Unclassifiable.

    1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

    2 This date is April 9, 2018, unless otherwise noted.

    Indiana—Carbon Monoxide

    Designated Area Designation Classification
    Date1 Type Date1 Type
    East Chicago Area:
    Lake County (part)February 18, 2000Attainment
    Part of City of East Chicago (area bounded by Columbus Drive on the north, the Indiana Harbor Canal on the west, 148th St. if extended, on the south, and Euclid Ave, on the east.
    Indianapolis Area:
    Marion County (part)February 18, 2000Attainment
    Part of City of Indianapolis (area bounded by 11th St, on the north, Capital on the west, Georgia St. on the south, and Delaware on the east).
    Lake County (part):
    The remainder of East Chicago and Lake CountyUnclassifiable/Attainment
    Marion County (part)
    The remainder of Indianapolis and Marion CountyUnclassifiable/Attainment
    Adams CountyUnclassifiable/Attainment
    Allen CountyUnclassifiable/Attainment
    Bartholomew CountyUnclassifiable/Attainment
    Benton CountyUnclassifiable/Attainment
    Blackford CountyUnclassifiable/Attainment
    Boone CountyUnclassifiable/Attainment
    Brown CountyUnclassifiable/Attainment
    Carroll CountyUnclassifiable/Attainment
    Cass CountyUnclassifiable/Attainment
    Clark CountyUnclassifiable/Attainment
    Clay CountyUnclassifiable/Attainment
    Clinton CountyUnclassifiable/Attainment
    Crawford CountyUnclassifiable/Attainment
    Daviess CountyUnclassifiable/Attainment
    De Kalb CountyUnclassifiable/Attainment
    Dearborn CountyUnclassifiable/Attainment
    Decatur CountyUnclassifiable/Attainment
    Delaware CountyUnclassifiable/Attainment
    Dubois CountyUnclassifiable/Attainment
    Elkhart CountyUnclassifiable/Attainment
    Fayette CountyUnclassifiable/Attainment
    Floyd CountyUnclassifiable/Attainment
    Fountain CountyUnclassifiable/Attainment
    Franklin CountyUnclassifiable/Attainment
    Fulton CountyUnclassifiable/Attainment
    Gibson CountyUnclassifiable/Attainment
    Grant CountyUnclassifiable/Attainment
    Greene CountyUnclassifiable/Attainment
    Hamilton CountyUnclassifiable/Attainment
    Hancock CountyUnclassifiable/Attainment
    Harrison CountyUnclassifiable/Attainment
    Hendricks CountyUnclassifiable/Attainment
    Henry CountyUnclassifiable/Attainment
    Howard CountyUnclassifiable/Attainment
    Huntington CountyUnclassifiable/Attainment
    Jackson CountyUnclassifiable/Attainment
    Jasper CountyUnclassifiable/Attainment
    Jay CountyUnclassifiable/Attainment
    Jefferson CountyUnclassifiable/Attainment
    Jennings CountyUnclassifiable/Attainment
    Johnson CountyUnclassifiable/Attainment
    Knox CountyUnclassifiable/Attainment
    Kosciusko CountyUnclassifiable/Attainment
    La Porte CountyUnclassifiable/Attainment
    Lagrange CountyUnclassifiable/Attainment
    Lawrence CountyUnclassifiable/Attainment
    Madison CountyUnclassifiable/Attainment
    Marshall CountyUnclassifiable/Attainment
    Martin CountyUnclassifiable/Attainment
    Miami CountyUnclassifiable/Attainment
    Monroe CountyUnclassifiable/Attainment
    Montgomery CountyUnclassifiable/Attainment
    Morgan CountyUnclassifiable/Attainment
    Newton CountyUnclassifiable/Attainment
    Noble CountyUnclassifiable/Attainment
    Ohio CountyUnclassifiable/Attainment
    Orange CountyUnclassifiable/Attainment
    Owen CountyUnclassifiable/Attainment
    Parke CountyUnclassifiable/Attainment
    Perry CountyUnclassifiable/Attainment
    Pike CountyUnclassifiable/Attainment
    Porter CountyUnclassifiable/Attainment
    Posey CountyUnclassifiable/Attainment
    Pulaski CountyUnclassifiable/Attainment
    Putnam CountyUnclassifiable/Attainment
    Randolph CountyUnclassifiable/Attainment
    Ripley CountyUnclassifiable/Attainment
    Rush CountyUnclassifiable/Attainment
    Scott CountyUnclassifiable/Attainment
    Shelby CountyUnclassifiable/Attainment
    Spencer CountyUnclassifiable/Attainment
    St. Joseph CountyUnclassifiable/Attainment
    Starke CountyUnclassifiable/Attainment
    Steuben CountyUnclassifiable/Attainment
    Sullivan CountyUnclassifiable/Attainment
    Switzerland CountyUnclassifiable/Attainment
    Tippecanoe CountyUnclassifiable/Attainment
    Tipton CountyUnclassifiable/Attainment
    Union CountyUnclassifiable/Attainment
    Vanderburgh CountyUnclassifiable/Attainment
    Vermillion CountyUnclassifiable/Attainment
    Vigo CountyUnclassifiable/Attainment
    Wabash CountyUnclassifiable/Attainment
    Warren CountyUnclassifiable/Attainment
    Warrick CountyUnclassifiable/Attainment
    Washington CountyUnclassifiable/Attainment
    Wayne CountyUnclassifiable/Attainment
    Wells CountyUnclassifiable/Attainment
    White CountyUnclassifiable/Attainment
    Whitley CountyUnclassifiable/Attainment

    1 This date is November 15, 1990, unless otherwise noted.

    Indiana—Ozone (1-Hour Standard)2

    Designated area Designation Classification
    Date1 Type Date1 Type
    Chicago-Gary-Lake County Area:
    Lake County11/15/90Nonattainment11/15/90Severe-17
    Porter County11/15/90Nonattainment11/15/90Severe-17
    Evansville Area:
    Vanderburgh CountyAttainment
    Indianapolis Area:
    Marion CountyAttainment
    Louisville Area:
    Clark County10/23/01Attainment
    Floyd County10/23/01Attainment
    South Bend-Elkhart Area:
    Elkhart CountyAttainment
    St Joseph CountyAttainment
    Allen CountyUnclassifiable/Attainment
    Adams CountyUnclassifiable/Attainment
    Bartholomew CountyUnclassifiable/Attainment
    Benton CountyUnclassifiable/Attainment
    Blackford CountyUnclassifiable/Attainment
    Boone CountyUnclassifiable/Attainment
    Brown CountyUnclassifiable/Attainment
    Carroll CountyUnclassifiable/Attainment
    Cass CountyUnclassifiable/Attainment
    Clay CountyUnclassifiable/Attainment
    Clinton CountyUnclassifiable/Attainment
    Crawford CountyUnclassifiable/Attainment
    Daviess CountyUnclassifiable/Attainment
    De Kalb CountyUnclassifiable/Attainment
    Dearborn CountyUnclassifiable/Attainment
    Decatur CountyUnclassifiable/Attainment
    Delaware CountyUnclassifiable/Attainment
    Dubois CountyUnclassifiable/Attainment
    Fayette CountyUnclassifiable/Attainment
    Fountain CountyUnclassifiable/Attainment
    Franklin CountyUnclassifiable/Attainment
    Fulton CountyUnclassifiable/Attainment
    Gibson CountyUnclassifiable/Attainment
    Grant CountyUnclassifiable/Attainment
    Greene CountyUnclassifiable/Attainment
    Hamilton CountyUnclassifiable/Attainment
    Hancock CountyUnclassifiable/Attainment
    Harrison CountyUnclassifiable/Attainment
    Hendricks CountyUnclassifiable/Attainment
    Henry CountyUnclassifiable/Attainment
    Howard CountyUnclassifiable/Attainment
    Huntington CountyUnclassifiable/Attainment
    Jackson CountyUnclassifiable/Attainment
    Jasper CountyUnclassifiable/Attainment
    Jay CountyUnclassifiable/Attainment
    Jefferson CountyUnclassifiable/Attainment
    Jennings CountyUnclassifiable/Attainment
    Johnson CountyUnclassifiable/Attainment
    Knox CountyUnclassifiable/Attainment
    Kosciusko CountyUnclassifiable/Attainment
    La Porte County11/15/90Unclassifiable/Attainment11/15/90
    Lagrange CountyUnclassifiable/Attainment
    Lawrence CountyUnclassifiable/Attainment
    Madison CountyUnclassifiable/Attainment
    Marshall CountyUnclassifiable/Attainment
    Martin CountyUnclassifiable/Attainment
    Miami CountyUnclassifiable/Attainment
    Monroe CountyUnclassifiable/Attainment
    Montgomery CountyUnclassifiable/Attainment
    Morgan CountyUnclassifiable/Attainment
    Newton CountyUnclassifiable/Attainment
    Noble CountyUnclassifiable/Attainment
    Ohio CountyUnclassifiable/Attainment
    Orange CountyUnclassifiable/Attainment
    Owen CountyUnclassifiable/Attainment
    Parke CountyUnclassifiable/Attainment
    Perry CountyUnclassifiable/Attainment
    Pike CountyUnclassifiable/Attainment
    Posey CountyUnclassifiable/Attainment
    Pulaski CountyUnclassifiable/Attainment
    Putnam CountyUnclassifiable/Attainment
    Randolph CountyUnclassifiable/Attainment
    Ripley CountyUnclassifiable/Attainment
    Rush CountyUnclassifiable/Attainment
    Scott CountyUnclassifiable/Attainment
    Shelby CountyUnclassifiable/Attainment
    Spencer CountyUnclassifiable/Attainment
    Starke CountyUnclassifiable/Attainment
    Steuben CountyUnclassifiable/Attainment
    Sullivan CountyUnclassifiable/Attainment
    Switzerland CountyUnclassifiable/Attainment
    Tippecanoe CountyUnclassifiable/Attainment
    Tipton CountyUnclassifiable/Attainment
    Union CountyUnclassifiable/Attainment
    Vermillion CountyUnclassifiable/Attainment
    Vigo CountyUnclassifiable/Attainment
    Wabash CountyUnclassifiable/Attainment
    Warren CountyUnclassifiable/Attainment
    Warrick CountyUnclassifiable/Attainment
    Washington CountyUnclassifiable/Attainment
    Wayne CountyUnclassifiable/Attainment
    Wells CountyUnclassifiable/Attainment
    White CountyUnclassifiable/Attainment
    Whitley CountyUnclassifiable/Attainment

    1 This date is October 18, 2000, unless otherwise noted.

    2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Indiana. The Evansville, Indianapolis, Louisville, and South Bend-Elkhart areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.

    Indiana—PM–10

    Designated Area Designation Classification
    Date Type Date Type
    Lake County: Cities of East Chicago, Hammond, Whiting, and Gary03/11/03Attainment.
    Vermillion County: Part of Clinton Township, Unclassifiable including sections 15, 16, 21, 22, 27, 28, 33, and 3410/27/97Attainment.
    Rest of State11/15/90Unclassifiable.

    Indiana—1997 Annual PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date2 Type
    Chicago-Gary-Lake County, IL–IN02/06/12Attainment.
    Lake County
    Porter County
    Cincinnati-Hamilton, IN:
    Dearborn County (part): Lawrenceburg Township9/1/17Attainment
    Elkhart, IN:
    Elkhart CountyUnclassifiable/Attainment.
    St. Joseph CountyUnclassifiable/Attainment.
    Evansville, IN10/27/11Attainment.
    Dubois County
    Gibson County (part):
    Montgomery Township
    Pike County (part):
    Washington Township
    Spencer County (part):
    Ohio Township
    Vanderburgh County
    Warrick County
    Indianapolis, IN7/11/13Attainment.
    Hamilton County
    Hendricks County
    Johnson County
    Marion County
    Morgan County
    Louisville, KY-IN9/9/16AttainmentModerate.
    Clark County
    Floyd County
    Jefferson County (part) Madison Township
    Muncie, IN:
    Delaware CountyUnclassifiable/Attainment.
    Rest of State:
    Adams CountyUnclassifiable/Attainment.
    Allen CountyUnclassifiable/Attainment.
    Bartholomew CountyUnclassifiable/Attainment.
    Benton CountyUnclassifiable/Attainment.
    Blackford CountyUnclassifiable/Attainment.
    Boone CountyUnclassifiable/Attainment.
    Brown CountyUnclassifiable/Attainment.
    Carroll CountyUnclassifiable/Attainment.
    Cass CountyUnclassifiable/Attainment.
    Clay CountyUnclassifiable/Attainment.
    Clinton CountyUnclassifiable/Attainment.
    Crawford CountyUnclassifiable/Attainment.
    Daviess CountyUnclassifiable/Attainment.
    Dearborn County (remainder)Unclassifiable/Attainment.
    Decatur CountyUnclassifiable/Attainment.
    De Kalb CountyUnclassifiable/Attainment.
    Fayette CountyUnclassifiable/Attainment.
    Fountain CountyUnclassifiable/Attainment.
    Franklin CountyUnclassifiable/Attainment.
    Fulton CountyUnclassifiable/Attainment.
    Gibson County (remainder)Unclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Greene CountyUnclassifiable/Attainment.
    Hancock CountyUnclassifiable/Attainment.
    Harrison CountyUnclassifiable/Attainment.
    Henry CountyUnclassifiable/Attainment.
    Howard CountyUnclassifiable/Attainment.
    Huntington CountyUnclassifiable/Attainment.
    Jackson CountyUnclassifiable/Attainment.
    Jasper CountyUnclassifiable/Attainment.
    Jay CountyUnclassifiable/Attainment.
    Jefferson County (remainder)Unclassifiable/Attainment.
    Jennings CountyUnclassifiable/Attainment.
    Knox CountyUnclassifiable/Attainment.
    Kosciusko CountyUnclassifiable/Attainment.
    LaGrange CountyUnclassifiable/Attainment.
    La Porte CountyUnclassifiable/Attainment.
    Lawrence CountyUnclassifiable/Attainment.
    Madison CountyUnclassifiable/Attainment.
    Marshall CountyUnclassifiable/Attainment.
    Martin CountyUnclassifiable/Attainment.
    Miami CountyUnclassifiable/Attainment.
    Monroe CountyUnclassifiable/Attainment.
    Montgomery CountyUnclassifiable/Attainment.
    Newton CountyUnclassifiable/Attainment.
    Noble CountyUnclassifiable/Attainment.
    Ohio CountyUnclassifiable/Attainment.
    Orange CountyUnclassifiable/Attainment.
    Owen CountyUnclassifiable/Attainment.
    Parke CountyUnclassifiable/Attainment.
    Perry CountyUnclassifiable/Attainment.
    Pike County (remainder)Unclassifiable/Attainment.
    Posey CountyUnclassifiable/Attainment.
    Pulaski CountyUnclassifiable/Attainment.
    Putnam CountyUnclassifiable/Attainment.
    Randolph CountyUnclassifiable/Attainment.
    Ripley CountyUnclassifiable/Attainment.
    Rush CountyUnclassifiable/Attainment.
    Scott CountyUnclassifiable/Attainment.
    Shelby CountyUnclassifiable/Attainment.
    Spencer County (remainder)Unclassifiable/Attainment.
    Starke CountyUnclassifiable/Attainment.
    Steuben CountyUnclassifiable/Attainment.
    Sullivan CountyUnclassifiable/Attainment.
    Switzerland CountyUnclassifiable/Attainment.
    Tippecanoe CountyUnclassifiable/Attainment.
    Tipton CountyUnclassifiable/Attainment.
    Union CountyUnclassifiable/Attainment.
    Vermillion CountyUnclassifiable/Attainment.
    Vigo CountyUnclassifiable/Attainment.
    Wabash CountyUnclassifiable/Attainment.
    Warren CountyUnclassifiable/Attainment.
    Washington CountyUnclassifiable/Attainment.
    Wayne CountyUnclassifiable/Attainment.
    Wells CountyUnclassifiable/Attainment.
    White CountyUnclassifiable/Attainment.
    Whitley CountyUnclassifiable/Attainment.

    a Includes Indian Country located in each county or area, except as otherwise specified.

    1 This date is 90 days after January 5, 2005, unless otherwise noted.

    2 This date is July 2, 2014, unless otherwise noted.

    Indiana—2012 Annual PM2.5 NAAQS

    [Primary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    Louisville, KY–IN:
    Clark County1/28/2019Unclassifiable/Attainment.
    Floyd County1/28/2019Unclassifiable/Attainment.
    Chicago Area, IL–IN:
    Lake County1/28/2019Unclassifiable/Attainment.
    Porter County1/28/2019Unclassifiable/Attainment.
    Rest of State:
    Adams CountyUnclassifiable/Attainment
    Allen CountyUnclassifiable/Attainment
    Bartholomew CountyUnclassifiable/Attainment
    Benton CountyUnclassifiable/Attainment
    Blackford CountyUnclassifiable/Attainment
    Boone CountyUnclassifiable/Attainment
    Brown CountyUnclassifiable/Attainment
    Carroll CountyUnclassifiable/Attainment
    Cass CountyUnclassifiable/Attainment
    Clay CountyUnclassifiable/Attainment
    Clinton CountyUnclassifiable/Attainment
    Crawford CountyUnclassifiable/Attainment
    Daviess CountyUnclassifiable/Attainment
    DeKalb CountyUnclassifiable/Attainment
    Dearborn CountyUnclassifiable/Attainment
    Decatur CountyUnclassifiable/Attainment
    Delaware CountyUnclassifiable/Attainment
    Dubois CountyUnclassifiable/Attainment
    Elkhart CountyUnclassifiable/Attainment
    Fayette CountyUnclassifiable/Attainment
    Fountain CountyUnclassifiable/Attainment
    Franklin CountyUnclassifiable/Attainment
    Fulton CountyUnclassifiable/Attainment
    Gibson CountyUnclassifiable/Attainment
    Grant CountyUnclassifiable/Attainment
    Greene CountyUnclassifiable/Attainment
    Hamilton CountyUnclassifiable/Attainment
    Hancock CountyUnclassifiable/Attainment
    Harrison CountyUnclassifiable/Attainment
    Hendricks CountyUnclassifiable/Attainment
    Henry CountyUnclassifiable/Attainment
    Howard CountyUnclassifiable/Attainment
    Huntington CountyUnclassifiable/Attainment
    Jackson CountyUnclassifiable/Attainment
    Jasper CountyUnclassifiable/Attainment
    Jay CountyUnclassifiable/Attainment
    Jefferson CountyUnclassifiable/Attainment
    Jennings CountyUnclassifiable/Attainment
    Johnson CountyUnclassifiable/Attainment
    Knox CountyUnclassifiable/Attainment
    Kosciusko CountyUnclassifiable/Attainment
    LaGrange CountyUnclassifiable/Attainment
    La Porte CountyUnclassifiable/Attainment
    Lawrence CountyUnclassifiable/Attainment
    Madison CountyUnclassifiable/Attainment
    Marion CountyUnclassifiable/Attainment
    Marshall CountyUnclassifiable/Attainment
    Martin CountyUnclassifiable/Attainment
    Miami CountyUnclassifiable/Attainment
    Monroe CountyUnclassifiable/Attainment
    Montgomery CountyUnclassifiable/Attainment
    Morgan CountyUnclassifiable/Attainment
    Newton CountyUnclassifiable/Attainment
    Noble CountyUnclassifiable/Attainment
    Ohio CountyUnclassifiable/Attainment
    Orange CountyUnclassifiable/Attainment
    Owen CountyUnclassifiable/Attainment
    Parke CountyUnclassifiable/Attainment
    Perry CountyUnclassifiable/Attainment
    Pike CountyUnclassifiable/Attainment
    Posey CountyUnclassifiable/Attainment
    Pulaski CountyUnclassifiable/Attainment
    Putnam CountyUnclassifiable/Attainment
    Randolph CountyUnclassifiable/Attainment
    Ripley CountyUnclassifiable/Attainment
    Rush CountyUnclassifiable/Attainment
    Scott CountyUnclassifiable/Attainment
    Shelby CountyUnclassifiable/Attainment
    Spencer CountyUnclassifiable/Attainment
    St. Joseph CountyUnclassifiable/Attainment
    Starke CountyUnclassifiable/Attainment
    Steuben CountyUnclassifiable/Attainment
    Sullivan CountyUnclassifiable/Attainment
    Switzerland CountyUnclassifiable/Attainment
    Tippecanoe CountyUnclassifiable/Attainment
    Tipton CountyUnclassifiable/Attainment
    Union CountyUnclassifiable/Attainment
    Vanderburgh CountyUnclassifiable/Attainment
    Vermillion CountyUnclassifiable/Attainment
    Vigo CountyUnclassifiable/Attainment
    Wabash CountyUnclassifiable/Attainment
    Warren CountyUnclassifiable/Attainment
    Warrick CountyUnclassifiable/Attainment
    Washington CountyUnclassifiable/Attainment
    Wayne CountyUnclassifiable/Attainment
    Wells CountyUnclassifiable/Attainment
    White CountyUnclassifiable/Attainment
    Whitley CountyUnclassifiable/Attainment

    1 Includes areas of Indian country located in each county or area, except as otherwise specified.

    2 This date is April 15, 2015, unless otherwise noted.

    Indiana—1997 24-Hour PM2.5

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    Statewide:
    Adams CountyUnclassifiable/Attainment.
    Allen CountyUnclassifiable/Attainment.
    Bartholomew CountyUnclassifiable/Attainment.
    Benton CountyUnclassifiable/Attainment.
    Blackford CountyUnclassifiable/Attainment.
    Boone CountyUnclassifiable/Attainment.
    Brown CountyUnclassifiable/Attainment.
    Carroll CountyUnclassifiable/Attainment.
    Cass CountyUnclassifiable/Attainment.
    Clark CountyUnclassifiable/Attainment.
    Clay CountyUnclassifiable/Attainment.
    Clinton CountyUnclassifiable/Attainment.
    Crawford CountyUnclassifiable/Attainment.
    Daviess CountyUnclassifiable/Attainment.
    Dearborn CountyUnclassifiable/Attainment.
    Decatur CountyUnclassifiable/Attainment.
    De Kalb CountyUnclassifiable/Attainment.
    Elkhart CountyUnclassifiable/Attainment.
    Delaware CountyUnclassifiable/Attainment.
    Dubois CountyUnclassifiable/Attainment.
    Elkhart CountyUnclassifiable/Attainment.
    Fayette CountyUnclassifiable/Attainment.
    Floyd CountyUnclassifiable/Attainment.
    Fountain CountyUnclassifiable/Attainment.
    Franklin CountyUnclassifiable/Attainment.
    Fulton CountyUnclassifiable/Attainment.
    Gibson CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Greene CountyUnclassifiable/Attainment.
    Hamilton CountyUnclassifiable/Attainment.
    Hancock CountyUnclassifiable/Attainment.
    Harrison CountyUnclassifiable/Attainment.
    Hendricks CountyUnclassifiable/Attainment.
    Henry CountyUnclassifiable/Attainment.
    Howard CountyUnclassifiable/Attainment.
    Huntington CountyUnclassifiable/Attainment.
    Jackson CountyUnclassifiable/Attainment.
    Jasper CountyUnclassifiable/Attainment.
    Jay CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Jennings CountyUnclassifiable/Attainment.
    Johnson CountyUnclassifiable/Attainment.
    Knox CountyUnclassifiable/Attainment.
    Kosciusko CountyUnclassifiable/Attainment.
    LaGrange CountyUnclassifiable/Attainment.
    La Porte CountyUnclassifiable/Attainment.
    Lake CountyUnclassifiable/Attainment.
    Lawrence CountyUnclassifiable/Attainment.
    Madison CountyUnclassifiable/Attainment.
    Marion CountyUnclassifiable/Attainment.
    Marshall CountyUnclassifiable/Attainment.
    Martin CountyUnclassifiable/Attainment.
    Miami CountyUnclassifiable/Attainment.
    Monroe CountyUnclassifiable/Attainment.
    Montgomery CountyUnclassifiable/Attainment.
    Morgan CountyUnclassifiable/Attainment.
    Newton CountyUnclassifiable/Attainment.
    Noble CountyUnclassifiable/Attainment.
    Ohio CountyUnclassifiable/Attainment.
    Orange CountyUnclassifiable/Attainment.
    Owen CountyUnclassifiable/Attainment.
    Parke CountyUnclassifiable/Attainment.
    Perry CountyUnclassifiable/Attainment.
    Pike CountyUnclassifiable/Attainment.
    Porter CountyUnclassifiable/Attainment.
    Posey CountyUnclassifiable/Attainment.
    Pulaski CountyUnclassifiable/Attainment.
    Putnam CountyUnclassifiable/Attainment.
    Randolph CountyUnclassifiable/Attainment.
    Ripley CountyUnclassifiable/Attainment.
    Rush CountyUnclassifiable/Attainment.
    St Joseph CountyUnclassifiable/Attainment.
    Scott CountyUnclassifiable/Attainment.
    Shelby CountyUnclassifiable/Attainment.
    Spencer CountyUnclassifiable/Attainment.
    Starke CountyUnclassifiable/Attainment.
    Steuben CountyUnclassifiable/Attainment.
    Sullivan CountyUnclassifiable/Attainment.
    Switzerland CountyUnclassifiable/Attainment.
    Tippecanoe CountyUnclassifiable/Attainment.
    Tipton CountyUnclassifiable/Attainment.
    Union CountyUnclassifiable/Attainment.
    Vandenberg CountyUnclassifiable/Attainment.
    Vermillion CountyUnclassifiable/Attainment.
    Vigo CountyUnclassifiable/Attainment.
    Wabash CountyUnclassifiable/Attainment.
    Warren CountyUnclassifiable/Attainment.
    Warrick CountyUnclassifiable/Attainment.
    Washington CountyUnclassifiable/Attainment.
    Wayne CountyUnclassifiable/Attainment.
    Wells CountyUnclassifiable/Attainment.
    White CountyUnclassifiable/Attainment.
    Whitley CountyUnclassifiable/Attainment.

    a Includes Indian Country located in each county or area, except as otherwise specified.

    1 This date is 90 days after January 5, 2005, unless otherwise noted.

    Indiana—2006 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    Statewide:
    Adams CountyUnclassifiable/Attainment.
    Allen CountyUnclassifiable/Attainment.
    Bartholomew CountyUnclassifiable/Attainment.
    Benton CountyUnclassifiable/Attainment.
    Blackford CountyUnclassifiable/Attainment.
    Boone CountyUnclassifiable/Attainment.
    Brown CountyUnclassifiable/Attainment.
    Carroll CountyUnclassifiable/Attainment.
    Cass CountyUnclassifiable/Attainment.
    Clark CountyUnclassifiable/Attainment.
    Clay CountyUnclassifiable/Attainment.
    Clinton CountyUnclassifiable/Attainment.
    Crawford CountyUnclassifiable/Attainment.
    Daviess CountyUnclassifiable/Attainment.
    Dearborn CountyUnclassifiable/Attainment.
    Decatur CountyUnclassifiable/Attainment.
    De Kalb CountyUnclassifiable/Attainment.
    Elkhart CountyUnclassifiable/Attainment.
    Delaware CountyUnclassifiable/Attainment.
    Dubois CountyUnclassifiable/Attainment.
    Elkhart CountyUnclassifiable/Attainment.
    Fayette CountyUnclassifiable/Attainment.
    Floyd CountyUnclassifiable/Attainment.
    Fountain CountyUnclassifiable/Attainment.
    Franklin CountyUnclassifiable/Attainment.
    Fulton CountyUnclassifiable/Attainment.
    Gibson CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Greene CountyUnclassifiable/Attainment.
    Hamilton CountyUnclassifiable/Attainment.
    Hancock CountyUnclassifiable/Attainment.
    Harrison CountyUnclassifiable/Attainment.
    Hendricks CountyUnclassifiable/Attainment.
    Henry CountyUnclassifiable/Attainment.
    Howard CountyUnclassifiable/Attainment.
    Huntington CountyUnclassifiable/Attainment.
    Jackson CountyUnclassifiable/Attainment.
    Jasper CountyUnclassifiable/Attainment.
    Jay CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Jennings CountyUnclassifiable/Attainment.
    Johnson CountyUnclassifiable/Attainment.
    Knox CountyUnclassifiable/Attainment.
    Kosciusko CountyUnclassifiable/Attainment.
    LaGrange CountyUnclassifiable/Attainment.
    La Porte CountyUnclassifiable/Attainment.
    Lake CountyUnclassifiable/Attainment.
    Lawrence CountyUnclassifiable/Attainment.
    Madison CountyUnclassifiable/Attainment.
    Marion CountyUnclassifiable/Attainment.
    Marshall CountyUnclassifiable/Attainment.
    Martin CountyUnclassifiable/Attainment.
    Miami CountyUnclassifiable/Attainment.
    Monroe CountyUnclassifiable/Attainment.
    Montgomery CountyUnclassifiable/Attainment.
    Morgan CountyUnclassifiable/Attainment.
    Newton CountyUnclassifiable/Attainment.
    Noble CountyUnclassifiable/Attainment.
    Ohio CountyUnclassifiable/Attainment.
    Orange CountyUnclassifiable/Attainment.
    Owen CountyUnclassifiable/Attainment.
    Parke CountyUnclassifiable/Attainment.
    Perry CountyUnclassifiable/Attainment.
    Pike CountyUnclassifiable/Attainment.
    Porter CountyUnclassifiable/Attainment.
    Posey CountyUnclassifiable/Attainment.
    Pulaski CountyUnclassifiable/Attainment.
    Putnam CountyUnclassifiable/Attainment.
    Randolph CountyUnclassifiable/Attainment.
    Ripley CountyUnclassifiable/Attainment.
    Rush CountyUnclassifiable/Attainment.
    St Joseph CountyUnclassifiable/Attainment.
    Scott CountyUnclassifiable/Attainment.
    Shelby CountyUnclassifiable/Attainment.
    Spencer CountyUnclassifiable/Attainment.
    Starke CountyUnclassifiable/Attainment.
    Steuben CountyUnclassifiable/Attainment.
    Sullivan CountyUnclassifiable/Attainment.
    Switzerland CountyUnclassifiable/Attainment.
    Tippecanoe CountyUnclassifiable/Attainment.
    Tipton CountyUnclassifiable/Attainment.
    Union CountyUnclassifiable/Attainment.
    Vandenberg CountyUnclassifiable/Attainment.
    Vermillion CountyUnclassifiable/Attainment.
    Vigo CountyUnclassifiable/Attainment.
    Wabash CountyUnclassifiable/Attainment.
    Warren CountyUnclassifiable/Attainment.
    Warrick CountyUnclassifiable/Attainment.
    Washington CountyUnclassifiable/Attainment.
    Wayne CountyUnclassifiable/Attainment.
    Wells CountyUnclassifiable/Attainment.
    White CountyUnclassifiable/Attainment.
    Whitley CountyUnclassifiable/Attainment.

    a Includes Indian Country located in each county or area, except as otherwise specified.

    1 This date is 30 days after November 13, 2009, unless otherwise noted.

    Indiana—NO2 (1971 Annual Standard)

    Designated area Does not meet primary standards Cannot be classified or better than national standards
    All portions of all Indiana CountiesX

    Indiana—NO2

    [2010 1-Hour standard]

    Designated area Designationa
    Date1 Type
    Adams CountyUnclassifiable/Attainment.
    Allen CountyUnclassifiable/Attainment.
    Bartholomew CountyUnclassifiable/Attainment.
    Benton CountyUnclassifiable/Attainment.
    Blackford CountyUnclassifiable/Attainment.
    Boone CountyUnclassifiable/Attainment.
    Brown CountyUnclassifiable/Attainment.
    Carroll CountyUnclassifiable/Attainment.
    Cass CountyUnclassifiable/Attainment.
    Clark CountyUnclassifiable/Attainment.
    Clay CountyUnclassifiable/Attainment.
    Clinton CountyUnclassifiable/Attainment.
    Crawford CountyUnclassifiable/Attainment.
    Daviess CountyUnclassifiable/Attainment.
    Dearborn CountyUnclassifiable/Attainment.
    Decatur CountyUnclassifiable/Attainment.
    Dekalb CountyUnclassifiable/Attainment.
    Delaware CountyUnclassifiable/Attainment.
    Dubois CountyUnclassifiable/Attainment.
    Elkhart CountyUnclassifiable/Attainment.
    Fayette CountyUnclassifiable/Attainment.
    Floyd CountyUnclassifiable/Attainment.
    Fountain CountyUnclassifiable/Attainment.
    Franklin CountyUnclassifiable/Attainment.
    Fulton CountyUnclassifiable/Attainment.
    Gibson CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Greene CountyUnclassifiable/Attainment.
    Hamilton CountyUnclassifiable/Attainment.
    Hancock CountyUnclassifiable/Attainment.
    Harrison CountyUnclassifiable/Attainment.
    Hendricks CountyUnclassifiable/Attainment.
    Henry CountyUnclassifiable/Attainment.
    Howard CountyUnclassifiable/Attainment.
    Huntington CountyUnclassifiable/Attainment.
    Jackson CountyUnclassifiable/Attainment.
    Jasper CountyUnclassifiable/Attainment.
    Jay CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Jennings CountyUnclassifiable/Attainment.
    Johnson CountyUnclassifiable/Attainment.
    Knox CountyUnclassifiable/Attainment.
    Kosciusko CountyUnclassifiable/Attainment.
    Lagrange CountyUnclassifiable/Attainment.
    Lake CountyUnclassifiable/Attainment.
    La Porte CountyUnclassifiable/Attainment.
    Lawrence CountyUnclassifiable/Attainment.
    Madison CountyUnclassifiable/Attainment.
    Marion CountyUnclassifiable/Attainment.
    Marshall CountyUnclassifiable/Attainment.
    Martin CountyUnclassifiable/Attainment.
    Miami CountyUnclassifiable/Attainment.
    Monroe CountyUnclassifiable/Attainment.
    Montgomery CountyUnclassifiable/Attainment.
    Morgan CountyUnclassifiable/Attainment.
    Newton CountyUnclassifiable/Attainment.
    Noble CountyUnclassifiable/Attainment.
    Ohio CountyUnclassifiable/Attainment.
    Orange CountyUnclassifiable/Attainment.
    Owen CountyUnclassifiable/Attainment.
    Parke CountyUnclassifiable/Attainment.
    Perry CountyUnclassifiable/Attainment.
    Pike CountyUnclassifiable/Attainment.
    Porter CountyUnclassifiable/Attainment.
    Posey CountyUnclassifiable/Attainment.
    Pulaski CountyUnclassifiable/Attainment.
    Putnam CountyUnclassifiable/Attainment.
    Randolph CountyUnclassifiable/Attainment.
    Ripley CountyUnclassifiable/Attainment.
    Rush CountyUnclassifiable/Attainment.
    St. Joseph CountyUnclassifiable/Attainment.
    Scott CountyUnclassifiable/Attainment.
    Shelby CountyUnclassifiable/Attainment.
    Spencer CountyUnclassifiable/Attainment.
    Starke CountyUnclassifiable/Attainment.
    Steuben CountyUnclassifiable/Attainment.
    Sullivan CountyUnclassifiable/Attainment.
    Switzerland CountyUnclassifiable/Attainment.
    Tippecanoe CountyUnclassifiable/Attainment.
    Tipton CountyUnclassifiable/Attainment.
    Union CountyUnclassifiable/Attainment.
    Vanderburgh CountyUnclassifiable/Attainment.
    Vermillion CountyUnclassifiable/Attainment.
    Vigo CountyUnclassifiable/Attainment.
    Wabash CountyUnclassifiable/Attainment.
    Warren CountyUnclassifiable/Attainment.
    Warrick CountyUnclassifiable/Attainment.
    Washington CountyUnclassifiable/Attainment.
    Wayne CountyUnclassifiable/Attainment.
    Wells CountyUnclassifiable/Attainment.
    White CountyUnclassifiable/Attainment.
    Whitley CountyUnclassifiable/Attainment.

    a Includes Indian Country located in each county or area, except as otherwise specified.

    1 This date is 90 days after October 31, 2011, unless otherwise noted.

    Indiana—1997 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designationa Category/classification
    Date1 Type Date1 Type
    Chicago–Gary–Lake County, IL–IN:
    Lake CountyMay 11, 2010Attainment.
    Porter County
    Cincinnati–Hamilton, OH–KY–IN:
    Dearborn County (part)May 11, 2010Attainment
    Evansville, IN:
    Vanderburgh County1/30/06Attainment
    Warrick County1/30/06Attainment
    Fort Wayne, IN:
    Allen County2/12/07Attainment
    Greene Co., IN:
    Greene County12/29/05Attainment
    Indianapolis, IN:October 19, 2007
    Boone CountyAttainment
    Hamilton CountyAttainment
    Hancock CountyAttainment
    Hendricks CountyAttainment
    Johnson CountyAttainment
    Madison CountyAttainment
    Marion CountyAttainment
    Morgan CountyAttainment
    Shelby CountyAttainment
    Jackson Co., IN:
    Jackson County12/29/05Attainment
    LaPorte CO., IN:
    LaPorte County7/19/07Attainment.
    Louisville, KY–IN:
    Clark County.
    Floyd CountyJuly 19, 2007Attainment.
    Muncie, IN:
    Delaware County1/3/06Attainment
    South Bend-Elkhart, IN:7/19/07Attainment
    Elkhart County.
    St. Joseph County.
    Terre Haute, IN:
    Vigo County2/6/06Attainment.
    Rest of State
    Adams CountyUnclassifiable/Attainment
    Bartholomew CountyUnclassifiable/Attainment
    Benton CountyUnclassifiable/Attainment
    Blackford CountyUnclassifiable/Attainment
    Brown CountyUnclassifiable/Attainment
    Carroll CountyUnclassifiable/Attainment
    Cass CountyUnclassifiable/Attainment
    Clay CountyUnclassifiable/Attainment
    Clinton CountyUnclassifiable/Attainment
    Crawford CountyUnclassifiable/Attainment
    Daviess CountyUnclassifiable/Attainment
    De Kalb CountyUnclassifiable/Attainment
    Dearborn County (part) remainderUnclassifiable/Attainment
    Decatur CountyUnclassifiable/Attainment
    Dubois CountyUnclassifiable/Attainment
    Fayette CountyUnclassifiable/Attainment
    Fountain CountyUnclassifiable/Attainment
    Franklin CountyUnclassifiable/Attainment
    Fulton CountyUnclassifiable/Attainment
    Gibson CountyUnclassifiable/Attainment
    Grant CountyUnclassifiable/Attainment
    Harrison CountyUnclassifiable/Attainment
    Henry CountyUnclassifiable/Attainment
    Howard CountyUnclassifiable/Attainment
    Huntington CountyUnclassifiable/Attainment
    Jasper CountyUnclassifiable/Attainment
    Jay CountyUnclassifiable/Attainment
    Jefferson CountyUnclassifiable/Attainment
    Jennings CountyUnclassifiable/Attainment
    Knox CountyUnclassifiable/Attainment
    Kosciusko CountyUnclassifiable/Attainment
    LaGrange CountyUnclassifiable/Attainment
    Lawrence CountyUnclassifiable/Attainment
    Marshall CountyUnclassifiable/Attainment
    Martin CountyUnclassifiable/Attainment
    Miami CountyUnclassifiable/Attainment
    Monroe CountyUnclassifiable/Attainment
    Montgomery CountyUnclassifiable/Attainment
    Newton CountyUnclassifiable/Attainment
    Noble CountyUnclassifiable/Attainment
    Ohio CountyUnclassifiable/Attainment
    Orange CountyUnclassifiable/Attainment
    Owen CountyUnclassifiable/Attainment
    Parke CountyUnclassifiable/Attainment
    Perry CountyUnclassifiable/Attainment
    Pike CountyUnclassifiable/Attainment
    Posey CountyUnclassifiable/Attainment
    Pulaski CountyUnclassifiable/Attainment
    Putnam CountyUnclassifiable/Attainment
    Randolph CountyUnclassifiable/Attainment
    Ripley CountyUnclassifiable/Attainment
    Rush CountyUnclassifiable/Attainment
    Scott CountyUnclassifiable/Attainment
    Spencer CountyUnclassifiable/Attainment
    Starke CountyUnclassifiable/Attainment
    Steuben CountyUnclassifiable/Attainment
    Sullivan CountyUnclassifiable/Attainment
    Switzerland CountyUnclassifiable/Attainment
    Tippecanoe CountyUnclassifiable/Attainment
    Tipton CountyUnclassifiable/Attainment
    Union CountyUnclassifiable/Attainment
    Vermillion CountyUnclassifiable/Attainment
    Wabash CountyUnclassifiable/Attainment
    Warren CountyUnclassifiable/Attainment
    Warrick CountyUnclassifiable/Attainment
    Washington CountyUnclassifiable/Attainment
    Wayne CountyUnclassifiable/Attainment
    Wells CountyUnclassifiable/Attainment
    White CountyUnclassifiable/Attainment
    Whitley CountyUnclassifiable/Attainment

    a Includes Indian Country located in each county or area, except as otherwise specified.

    1 This date is June 15, 2004, unless otherwise noted.

    2 November 22, 2004.

    Indiana—2008 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designation area Designation Classification
    Date1 Type Date1 Type
    Chicago-Naperville, IL-IN-WI2 5/20/22Attainment9/23/2019Serious.
    Lake County.
    Porter County.
    Cincinnati, OH–KY–IN:2 Dearborn County (part) Lawrenceburg Township4/7/17Attainment.
    Adams County3 Unclassifiable/Attainment
    Allen County3 Unclassifiable/Attainment
    Bartholomew County3 Unclassifiable/Attainment
    Benton County3 Unclassifiable/Attainment
    Blackford County3 Unclassifiable/Attainment
    Boone County3 Unclassifiable/Attainment
    Brown County3 Unclassifiable/Attainment
    Carroll County3 Unclassifiable/Attainment
    Cass County3 Unclassifiable/Attainment
    Clark County3 Unclassifiable/Attainment
    Clay County3 Unclassifiable/Attainment
    Clinton County3 Unclassifiable/Attainment
    Crawford County3 Unclassifiable/Attainment
    Daviess County3 Unclassifiable/Attainment
    Dearborn County (remainder)3 Unclassifiable/Attainment
    Decatur County3 Unclassifiable/Attainment
    De Kalb County3 Unclassifiable/Attainment
    Delaware County3 Unclassifiable/Attainment
    Dubois County3 Unclassifiable/Attainment
    Elkhart County3 Unclassifiable/Attainment
    Fayette County3 Unclassifiable/Attainment
    Floyd County3 Unclassifiable/Attainment
    Fountain County3 Unclassifiable/Attainment
    Franklin County3 Unclassifiable/Attainment
    Fulton County3 Unclassifiable/Attainment
    Gibson County3 Unclassifiable/Attainment
    Grant County3 Unclassifiable/Attainment
    Greene County3 Unclassifiable/Attainment
    Hamilton County3 Unclassifiable/Attainment
    Hancock County3 Unclassifiable/Attainment
    Harrison County3 Unclassifiable/Attainment
    Hendricks County3 Unclassifiable/Attainment
    Henry County3 Unclassifiable/Attainment
    Howard County3 Unclassifiable/Attainment
    Huntington County3 Unclassifiable/Attainment
    Jackson County3 Unclassifiable/Attainment
    Jasper County3 Unclassifiable/Attainment
    Jay County3 Unclassifiable/Attainment
    Jefferson County3 Unclassifiable/Attainment
    Jennings County3 Unclassifiable/Attainment
    Johnson County3 Unclassifiable/Attainment
    Knox County3 Unclassifiable/Attainment
    Kosciusko County3 Unclassifiable/Attainment
    LaGrange County3 Unclassifiable/Attainment
    La Porte County3 Unclassifiable/Attainment
    Lawrence County3 Unclassifiable/Attainment
    Madison County3 Unclassifiable/Attainment
    Marion County3 Unclassifiable/Attainment
    Marshall County3 Unclassifiable/Attainment
    Martin County3 Unclassifiable/Attainment
    Miami County3 Unclassifiable/Attainment
    Monroe County3 Unclassifiable/Attainment
    Montgomery County3 Unclassifiable/Attainment
    Morgan County3 Unclassifiable/Attainment
    Newton County3 Unclassifiable/Attainment
    Noble County3 Unclassifiable/Attainment
    Ohio County3 Unclassifiable/Attainment
    Orange County3 Unclassifiable/Attainment
    Owen County3 Unclassifiable/Attainment
    Parke County3 Unclassifiable/Attainment
    Perry County3 Unclassifiable/Attainment
    Pike County3 Unclassifiable/Attainment
    Posey County3 Unclassifiable/Attainment
    Pulaski County3 Unclassifiable/Attainment
    Putnam County3 Unclassifiable/Attainment
    Randolph County3 Unclassifiable/Attainment
    Ripley County3 Unclassifiable/Attainment
    Rush County3 Unclassifiable/Attainment
    St Joseph County3 Unclassifiable/Attainment
    Scott County3 Unclassifiable/Attainment
    Shelby County3 Unclassifiable/Attainment
    Spencer County3 Unclassifiable/Attainment
    Starke County3 Unclassifiable/Attainment
    Steuben County3 Unclassifiable/Attainment
    Sullivan County3 Unclassifiable/Attainment
    Switzerland County3 Unclassifiable/Attainment
    Tippecanoe County3 Unclassifiable/Attainment
    Tipton County3 Unclassifiable/Attainment
    Union County3 Unclassifiable/Attainment
    Vanderburgh County3 Unclassifiable/Attainment
    Vermillion County3 Unclassifiable/Attainment
    Vigo County3 Unclassifiable/Attainment
    Wabash County3 Unclassifiable/Attainment
    Warren County3 Unclassifiable/Attainment
    Warrick County3 Unclassifiable/Attainment
    Washington County3 Unclassifiable/Attainment
    Wayne County3 Unclassifiable/Attainment
    Wells County3 Unclassifiable/Attainment
    White County3 Unclassifiable/Attainment
    Whitley County3 Unclassifiable/Attainment

    1 This date is July 20, 2012, unless otherwise noted.

    2 Excludes Indian country located in each area, unless otherwise noted.

    3 Includes any Indian country in each county or area, unless otherwise specified.

    Indiana—2015 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    Chicago, IL-IN-WINonattainmentNovember 7, 202211/7/22Moderate.
    Lake County (part).
    Calumet Township, Hobart Township, North Township, Ross Township, and St. John Township
    Porter County (part)July 14, 20213
    Center Township, Jackson Township, Liberty Township, Pine Township, Portage Township, Union Township, Washington Township, and Westchester Township
    Louisville, KY-INJuly 5, 2022AttainmentMarginal.
    Clark County
    Floyd County
    Adams County1/16/18Attainment/Unclassifiable
    Allen County1/16/18Attainment/Unclassifiable
    Bartholomew County1/16/18Attainment/Unclassifiable
    Benton County1/16/18Attainment/Unclassifiable
    Blackford County1/16/18Attainment/Unclassifiable
    Boone County1/16/18Attainment/Unclassifiable
    Brown County1/16/18Attainment/Unclassifiable
    Carroll County1/16/18Attainment/Unclassifiable
    Cass County1/16/18Attainment/Unclassifiable
    Clay County1/16/18Attainment/Unclassifiable
    Clinton County1/16/18Attainment/Unclassifiable
    Crawford County1/16/18Attainment/Unclassifiable
    Daviess County1/16/18Attainment/Unclassifiable
    Dearborn CountyAttainment/Unclassifiable
    Decatur County1/16/18Attainment/Unclassifiable
    DeKalb County1/16/18Attainment/Unclassifiable
    Delaware County1/16/18Attainment/Unclassifiable
    Dubois County1/16/18Attainment/Unclassifiable
    Elkhart CountyAttainment/Unclassifiable
    Fayette County1/16/18Attainment/Unclassifiable
    Fountain County1/16/18Attainment/Unclassifiable
    Franklin CountyAttainment/Unclassifiable
    Fulton County1/16/18Attainment/Unclassifiable
    Gibson County1/16/18Attainment/Unclassifiable
    Grant County1/16/18Attainment/Unclassifiable
    Greene County1/16/18Attainment/Unclassifiable
    Hamilton County1/16/18Attainment/Unclassifiable
    Hancock County1/16/18Attainment/Unclassifiable
    Harrison CountyAttainment/Unclassifiable
    Hendricks County1/16/18Attainment/Unclassifiable
    Henry County1/16/18Attainment/Unclassifiable
    Howard County1/16/18Attainment/Unclassifiable
    Huntington County1/16/18Attainment/Unclassifiable
    Jackson County1/16/18Attainment/Unclassifiable
    Jasper CountyAttainment/Unclassifiable
    Jay County1/16/18Attainment/Unclassifiable
    Jefferson CountyAttainment/Unclassifiable
    Jennings County1/16/18Attainment/Unclassifiable
    Johnson County1/16/18Attainment/Unclassifiable
    Knox County1/16/18Attainment/Unclassifiable
    Kosciusko County1/16/18Attainment/Unclassifiable
    LaGrange County1/16/18Attainment/Unclassifiable
    Lake County (part) remainderAttainment/Unclassifiable
    La Porte CountyAttainment/Unclassifiable
    Lawrence County1/16/18Attainment/Unclassifiable
    Madison County1/16/18Attainment/Unclassifiable
    Marion County1/16/18Attainment/Unclassifiable
    Marshall CountyAttainment/Unclassifiable
    Martin County1/16/18Attainment/Unclassifiable
    Miami County1/16/18Attainment/Unclassifiable
    Monroe County1/16/18Attainment/Unclassifiable
    Montgomery County1/16/18Attainment/Unclassifiable
    Morgan County1/16/18Attainment/Unclassifiable
    Newton CountyAttainment/Unclassifiable
    Noble County1/16/18Attainment/Unclassifiable
    Ohio CountyAttainment/Unclassifiable
    Orange County1/16/18Attainment/Unclassifiable
    Owen County1/16/18Attainment/Unclassifiable
    Parke County1/16/18Attainment/Unclassifiable
    Perry County1/16/18Attainment/Unclassifiable
    Pike County1/16/18Attainment/Unclassifiable
    Porter County (part) remainderAttainment/Unclassifiable
    Posey County1/16/18Attainment/Unclassifiable
    Pulaski County1/16/18Attainment/Unclassifiable
    Putnam County1/16/18Attainment/Unclassifiable
    Randolph County1/16/18Attainment/Unclassifiable
    Ripley County1/16/18Attainment/Unclassifiable
    Rush County1/16/18Attainment/Unclassifiable
    St. Joseph CountyAttainment/Unclassifiable
    Scott CountyAttainment/Unclassifiable
    Shelby County1/16/18Attainment/Unclassifiable
    Spencer County1/16/18Attainment/Unclassifiable
    Starke County1/16/18Attainment/Unclassifiable
    Steuben County1/16/18Attainment/Unclassifiable
    Sullivan County1/16/18Attainment/Unclassifiable
    Switzerland County1/16/18Attainment/Unclassifiable
    Tippecanoe County1/16/18Attainment/Unclassifiable
    Tipton County1/16/18Attainment/Unclassifiable
    Union CountyAttainment/Unclassifiable
    Vanderburgh County1/16/18Attainment/Unclassifiable
    Vermillion County1/16/18Attainment/Unclassifiable
    Vigo County1/16/18Attainment/Unclassifiable
    Wabash County1/16/18Attainment/Unclassifiable
    Warren County1/16/18Attainment/Unclassifiable
    Warrick County1/16/18Attainment/Unclassifiable
    Washington CountyAttainment/Unclassifiable
    Wayne County1/16/18Attainment/Unclassifiable
    Wells County1/16/18Attainment/Unclassifiable
    White County1/16/18Attainment/Unclassifiable
    Whitley County1/16/18Attainment/Unclassifiable

    1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

    2 This date is August 3, 2018, unless otherwise noted.

    3 EPA revised the nonattainment boundary in response to a court decision, which did not vacate any designations for the 2015 ozone NAAQS, but which remanded the designation for the identified county. Because this additional area is part of a previously designated nonattainment area, the implementation dates for the overall nonattainment area (e.g., the August 3, 2021 attainment date) remain unchanged regardless of this later designation date.

    Indiana—1978 Lead NAAQS

    Designated area Designation Classification
    Date Type Date Type
    Marion County (Part)—7/10/00Attainment
    Part of Franklin Township: Thompson Road on the south; Emerson Avenue on the west; Five Points Road on the east; and Troy Avenue on the north.
    Marion County (Part)—7/10/00Attainment
    Part of Wayne Township: Rockville Road on the north; Girls School Road on the east; Washington Street on the south; and Bridgeport Road on the west.
    Rest of State Not Designated.

    Indiana—2008 Lead NAAQS

    Designated area Designation for the 2008 NAAQSa
    Date1 Type
    Muncie, IN
    Delaware County (part)May 15, 2020Attainment.
    A portion of the City of Muncie, Indiana bounded to the north by West 26th Street/Hines Road, to the east by Cowan Road, to the south by West Fuson Road, and to the west by a line running south from the eastern edge of Victory Temple's driveway to South Hoyt Avenue and then along South Hoyt Avenue
    Rest of StateUnclassifiable/Attainment.

    a Includes Indian Country located in each county or area, except as otherwise specified.

    1 December 31, 2011 unless otherwise noted.

    [43 FR 8964, Mar. 3, 1978]

    Editorial Note

    Editorial Note:

    For Federal Register citations affecting § 81.315, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.