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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

  § 81.328 - Nebraska.  

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  • § 81.328 Nebraska.

    Nebraska - TSP

    Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
    AQCR 085 (Douglas and Sarpy Counties):
    Douglas County:
    OmahaX
    Remainder of Douglas CountyX
    Sarpy County:
    BellevueX
    Remainder of Sarpy CountyX
    AQCR 086 1 X
    AQCR 145X
    AQCR 146:
    Cass CountyX
    Dawson County 1 X
    Remainder of AQCR 146X

    1 EPA designation replaces state designation.

    Nebraska - 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
    Entire StateX

    Nebraska - 2010 Sulfur Dioxide NAAQS

    [Primary]

    Designated area1 Designation
    Date2 Type
    Statewide:Attainment/Unclassifiable.
    Adams County
    Antelope County
    Arthur County
    Banner County
    Blaine County
    Boone County
    Box Butte County
    Boyd County
    Brown County
    Buffalo County
    Burt County
    Butler County
    Cass County
    Cedar County
    Chase County
    Cherry County
    Cheyenne County
    Clay County
    Colfax County
    Cuming County
    Custer County
    Dakota County
    Dawes County
    Dawson County
    Deuel County
    Dixon County
    Dodge County
    Douglas County4/30/2021Attainment/Unclassifiable.
    Dundy County
    Fillmore County
    Franklin County
    Frontier County
    Furnas County
    Gage County
    Garden County
    Garfield County
    Gosper County
    Grant County
    Greeley County
    Hall County
    Hamilton County
    Harlan County
    Hayes County
    Hitchcock County
    Holt County
    Hooker County
    Howard County
    Jefferson County
    Johnson County
    Kearney County
    Keith County
    Keya Paha County
    Kimball County
    Knox County
    Lancaster County8/16/21Attainment/Unclassifiable.
    Lincoln County9/12/16Attainment/Unclassifiable.
    Logan County
    Loup County
    Madison County
    McPherson County
    Merrick County
    Morrill County
    Nance County
    Nemaha County
    Nuckolls County
    Otoe County9/12/16Attainment/Unclassifiable.
    Pawnee County
    Perkins County
    Phelps County
    Pierce County
    Platte County
    Polk County
    Red Willow County
    Richardson County
    Rock County
    Saline County
    Sarpy County
    Saunders County
    Scotts Bluff County
    Seward County
    Sheridan County
    Sherman County
    Sioux County
    Stanton County
    Thayer County
    Thomas County
    Thurston County
    Valley County
    Washington County
    Wayne County
    Webster County
    Wheeler County
    York County

    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.

    Nebraska - Carbon Monoxide

    Designated Area Designation Classification
    Date1 Type Date1 Type
    StatewideUnclassifiable/Attainment
    Adams County
    Antelope County
    Arthur County
    Banner County
    Blaine County
    Boone County
    Box Butte County
    Boyd County
    Brown County
    Buffalo County
    Burt County
    Butler County
    Cass County
    Cedar County
    Chase County
    Cherry County
    Cheyenne County
    Clay County
    Colfax County
    Cuming County
    Custer County
    Dakota County
    Dawes County
    Dawson County
    Deuel County
    Dixon County
    Dodge County
    Douglas County
    Dundy County
    Fillmore County
    Franklin County
    Frontier County
    Furnas County
    Gage County
    Garden County
    Garfield County
    Gosper County
    Grant County
    Greeley County
    Hall County
    Hamilton County
    Harlan County
    Hayes County
    Hitchcock County
    Holt County
    Hooker County
    Howard County
    Jefferson County
    Johnson County
    Kearney County
    Keith County
    Keya Paha County
    Kimball County
    Knox County
    Lancaster County
    Lincoln County
    Logan County
    Loup County
    Madison County
    McPherson County
    Merrick County
    Morrill County
    Nance County
    Nemaha County
    Nuckolls County
    Otoe County
    Pawnee County
    Perkins County
    Phelps County
    Pierce County
    Platte County
    Polk County
    Red Willow County
    Richardson County
    Rock County
    Saline County
    Sarpy County
    Saunders County
    Scotts Bluff County
    Seward County
    Sheridan County
    Sherman County
    Sioux County
    Stanton County
    Thayer County
    Thomas County
    Thurston County
    Valley County
    Washington County
    Wayne County
    Webster County
    Wheeler County
    York County

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

    Nebraska - 1978 Lead NAAQS

    Designated area Designation Classification
    Date Type Date Type
    Douglas County (part):
    Portion of city of Omaha bounded by: Jones Street on the south, Eleventh Street on the west, Avenue H and the Nebraska-Iowa border on the north, and the Missouri River on the east4/20/01Attainment

    Nebraska - Ozone (1-Hour Standard)2

    Designated area Designation Classification
    Date1 Type Date1 Type
    StatewideUnclassifiable/Attainment
    Adams County
    Antelope County
    Arthur County
    Banner County
    Blaine County
    Boone County
    Box Butte County
    Boyd County
    Brown County
    Buffalo County
    Burt County
    Butler County
    Cass County
    Cedar County
    Chase County
    Cherry County
    Cheyenne County
    Clay County
    Colfax County
    Cuming County
    Custer County
    Dakota County
    Dawes County
    Dawson County
    Deuel County
    Dixon County
    Dodge County
    Douglas County
    Dundy County
    Fillmore County
    Franklin County
    Frontier County
    Furnas County
    Gage County
    Garden County
    Garfield County
    Gosper County
    Grant County
    Greeley County
    Hall County
    Hamilton County
    Harlan County
    Hayes County
    Hitchcock County
    Holt County
    Hooker County
    Howard County
    Jefferson County
    Johnson County
    Kearney County
    Keith County
    Keya Paha County
    Kimball County
    Knox County
    Lancaster County
    Lincoln County
    Logan County
    Loup County
    Madison County
    McPherson County
    Merrick County
    Morrill County
    Nance County
    Nemaha County
    Nuckolls County
    Otoe County
    Pawnee County
    Perkins County
    Phelps County
    Pierce County
    Platte County
    Polk County
    Red Willow County
    Richardson County
    Rock County
    Saline County
    Sarpy County
    Saunders County
    Scotts Bluff County
    Seward County
    Sheridan County
    Sherman County
    Sioux County
    Stanton County
    Thayer County
    Thomas County
    Thurston County
    Valley County
    Washington County
    Wayne County
    Webster County
    Wheeler County
    York County

    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 Nebraska.

    Nebraska - 1997 Annual PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    Statewide:
    Adams CountyUnclassifiable/Attainment.
    Antelope CountyUnclassifiable/Attainment.
    Arthur CountyUnclassifiable/Attainment.
    Banner CountyUnclassifiable/Attainment.
    Blaine CountyUnclassifiable/Attainment.
    Boone CountyUnclassifiable/Attainment.
    Box Butte CountyUnclassifiable/Attainment.
    Boyd CountyUnclassifiable/Attainment.
    Brown CountyUnclassifiable/Attainment.
    Buffalo CountyUnclassifiable/Attainment.
    Burt CountyUnclassifiable/Attainment.
    Butler CountyUnclassifiable/Attainment.
    Cass CountyUnclassifiable/Attainment.
    Cedar CountyUnclassifiable/Attainment.
    Chase CountyUnclassifiable/Attainment.
    Cherry CountyUnclassifiable/Attainment.
    Cheyenne CountyUnclassifiable/Attainment.
    Clay CountyUnclassifiable/Attainment.
    Colfax CountyUnclassifiable/Attainment.
    Cuming CountyUnclassifiable/Attainment.
    Custer CountyUnclassifiable/Attainment.
    Dakota CountyUnclassifiable/Attainment.
    Dawes CountyUnclassifiable/Attainment.
    Dawson CountyUnclassifiable/Attainment.
    Deuel CountyUnclassifiable/Attainment.
    Dixon CountyUnclassifiable/Attainment.
    Dodge CountyUnclassifiable/Attainment.
    Douglas CountyUnclassifiable/Attainment.
    Dundy CountyUnclassifiable/Attainment.
    Fillmore CountyUnclassifiable/Attainment.
    Franklin CountyUnclassifiable/Attainment.
    Frontier CountyUnclassifiable/Attainment.
    Furnas CountyUnclassifiable/Attainment.
    Gage CountyUnclassifiable/Attainment.
    Garden CountyUnclassifiable/Attainment.
    Garfield CountyUnclassifiable/Attainment.
    Gosper CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Greeley CountyUnclassifiable/Attainment.
    Hall CountyUnclassifiable/Attainment.
    Hamilton CountyUnclassifiable/Attainment.
    Harlan CountyUnclassifiable/Attainment.
    Hayes CountyUnclassifiable/Attainment.
    Hitchcock CountyUnclassifiable/Attainment.
    Holt CountyUnclassifiable/Attainment.
    Hooker CountyUnclassifiable/Attainment.
    Howard CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Johnson CountyUnclassifiable/Attainment.
    Kearney CountyUnclassifiable/Attainment.
    Keith CountyUnclassifiable/Attainment.
    Keya Paha CountyUnclassifiable/Attainment.
    Kimball CountyUnclassifiable/Attainment.
    Knox CountyUnclassifiable/Attainment.
    Lancaster CountyUnclassifiable/Attainment.
    Lincoln CountyUnclassifiable/Attainment.
    Logan CountyUnclassifiable/Attainment.
    Loup CountyUnclassifiable/Attainment.
    McPherson CountyUnclassifiable/Attainment.
    Madison CountyUnclassifiable/Attainment.
    Merrick CountyUnclassifiable/Attainment.
    Morrill CountyUnclassifiable/Attainment.
    Nance CountyUnclassifiable/Attainment.
    Nemaha CountyUnclassifiable/Attainment.
    Nuckolls CountyUnclassifiable/Attainment.
    Otoe CountyUnclassifiable/Attainment.
    Pawnee CountyUnclassifiable/Attainment.
    Perkins CountyUnclassifiable/Attainment.
    Phelps CountyUnclassifiable/Attainment.
    Pierce CountyUnclassifiable/Attainment.
    Platte CountyUnclassifiable/Attainment.
    Polk CountyUnclassifiable/Attainment.
    Red Willow CountyUnclassifiable/Attainment.
    Richardson CountyUnclassifiable/Attainment.
    Rock CountyUnclassifiable/Attainment.
    Saline CountyUnclassifiable/Attainment.
    Sarpy CountyUnclassifiable/Attainment.
    Saunders CountyUnclassifiable/Attainment.
    Scotts Bluff CountyUnclassifiable/Attainment.
    Seward CountyUnclassifiable/Attainment.
    Sheridan CountyUnclassifiable/Attainment.
    Sherman CountyUnclassifiable/Attainment.
    Sioux CountyUnclassifiable/Attainment.
    Stanton CountyUnclassifiable/Attainment.
    Thayer CountyUnclassifiable/Attainment.
    Thomas CountyUnclassifiable/Attainment.
    Thurston CountyUnclassifiable/Attainment.
    Valley CountyUnclassifiable/Attainment.
    Washington CountyUnclassifiable/Attainment.
    Wayne CountyUnclassifiable/Attainment.
    Webster CountyUnclassifiable/Attainment.
    Wheeler CountyUnclassifiable/Attainment.
    York 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.

    Nebraska - 2012 Annual PM2.5 NAAQS

    [Primary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    Statewide:
    Adams CountyUnclassifiable/Attainment
    Antelope CountyUnclassifiable/Attainment
    Arthur CountyUnclassifiable/Attainment
    Banner CountyUnclassifiable/Attainment
    Blaine CountyUnclassifiable/Attainment
    Boone CountyUnclassifiable/Attainment
    Box Butte CountyUnclassifiable/Attainment
    Boyd CountyUnclassifiable/Attainment
    Brown CountyUnclassifiable/Attainment
    Buffalo CountyUnclassifiable/Attainment
    Burt CountyUnclassifiable/Attainment
    Butler CountyUnclassifiable/Attainment
    Cass CountyUnclassifiable/Attainment
    Cedar CountyUnclassifiable/Attainment
    Chase CountyUnclassifiable/Attainment
    Cherry CountyUnclassifiable/Attainment
    Cheyenne CountyUnclassifiable/Attainment
    Clay CountyUnclassifiable/Attainment
    Colfax CountyUnclassifiable/Attainment
    Cuming CountyUnclassifiable/Attainment
    Custer CountyUnclassifiable/Attainment
    Dakota CountyUnclassifiable/Attainment
    Dawes CountyUnclassifiable/Attainment
    Dawson CountyUnclassifiable/Attainment
    Deuel CountyUnclassifiable/Attainment
    Dixon CountyUnclassifiable/Attainment
    Dodge CountyUnclassifiable/Attainment
    Douglas CountyUnclassifiable/Attainment
    Dundy CountyUnclassifiable/Attainment
    Fillmore CountyUnclassifiable/Attainment
    Franklin CountyUnclassifiable/Attainment
    Frontier CountyUnclassifiable/Attainment
    Furnas CountyUnclassifiable/Attainment
    Gage CountyUnclassifiable/Attainment
    Garden CountyUnclassifiable/Attainment
    Garfield CountyUnclassifiable/Attainment
    Gosper CountyUnclassifiable/Attainment
    Grant CountyUnclassifiable/Attainment
    Greeley CountyUnclassifiable/Attainment
    Hall CountyUnclassifiable/Attainment
    Hamilton CountyUnclassifiable/Attainment
    Harlan CountyUnclassifiable/Attainment
    Hayes CountyUnclassifiable/Attainment
    Hitchcock CountyUnclassifiable/Attainment
    Holt CountyUnclassifiable/Attainment
    Hooker CountyUnclassifiable/Attainment
    Howard CountyUnclassifiable/Attainment
    Jefferson CountyUnclassifiable/Attainment
    Johnson CountyUnclassifiable/Attainment
    Kearney CountyUnclassifiable/Attainment
    Keith CountyUnclassifiable/Attainment
    Keya Paha CountyUnclassifiable/Attainment
    Kimball CountyUnclassifiable/Attainment
    Knox CountyUnclassifiable/Attainment
    Lancaster CountyUnclassifiable/Attainment
    Lincoln CountyUnclassifiable/Attainment
    Logan CountyUnclassifiable/Attainment
    Loup CountyUnclassifiable/Attainment
    McPherson CountyUnclassifiable/Attainment
    Madison CountyUnclassifiable/Attainment
    Merrick CountyUnclassifiable/Attainment
    Morrill CountyUnclassifiable/Attainment
    Nance CountyUnclassifiable/Attainment
    Nemaha CountyUnclassifiable/Attainment
    Nuckolls CountyUnclassifiable/Attainment
    Otoe CountyUnclassifiable/Attainment
    Pawnee CountyUnclassifiable/Attainment
    Perkins CountyUnclassifiable/Attainment
    Phelps CountyUnclassifiable/Attainment
    Pierce CountyUnclassifiable/Attainment
    Platte CountyUnclassifiable/Attainment
    Polk CountyUnclassifiable/Attainment
    Red Willow CountyUnclassifiable/Attainment
    Richardson CountyUnclassifiable/Attainment
    Rock CountyUnclassifiable/Attainment
    Saline CountyUnclassifiable/Attainment
    Sarpy CountyUnclassifiable/Attainment
    Saunders CountyUnclassifiable/Attainment
    Scotts Bluff CountyUnclassifiable/Attainment
    Seward CountyUnclassifiable/Attainment
    Sheridan CountyUnclassifiable/Attainment
    Sherman CountyUnclassifiable/Attainment
    Sioux CountyUnclassifiable/Attainment
    Stanton CountyUnclassifiable/Attainment
    Thayer CountyUnclassifiable/Attainment
    Thomas CountyUnclassifiable/Attainment
    Thurston CountyUnclassifiable/Attainment
    Valley CountyUnclassifiable/Attainment
    Washington CountyUnclassifiable/Attainment
    Wayne CountyUnclassifiable/Attainment
    Webster CountyUnclassifiable/Attainment
    Wheeler CountyUnclassifiable/Attainment
    York 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.

    Nebraska - 1997 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    Statewide:
    Adams CountyUnclassifiable/Attainment.
    Antelope CountyUnclassifiable/Attainment.
    Arthur CountyUnclassifiable/Attainment.
    Banner CountyUnclassifiable/Attainment.
    Blaine CountyUnclassifiable/Attainment.
    Boone CountyUnclassifiable/Attainment.
    Box Butte CountyUnclassifiable/Attainment.
    Boyd CountyUnclassifiable/Attainment.
    Brown CountyUnclassifiable/Attainment.
    Buffalo CountyUnclassifiable/Attainment.
    Burt CountyUnclassifiable/Attainment.
    Butler CountyUnclassifiable/Attainment.
    Cass CountyUnclassifiable/Attainment.
    Cedar CountyUnclassifiable/Attainment.
    Chase CountyUnclassifiable/Attainment.
    Cherry CountyUnclassifiable/Attainment.
    Cheyenne CountyUnclassifiable/Attainment.
    Clay CountyUnclassifiable/Attainment.
    Colfax CountyUnclassifiable/Attainment.
    Cuming CountyUnclassifiable/Attainment.
    Custer CountyUnclassifiable/Attainment.
    Dakota CountyUnclassifiable/Attainment.
    Dawes CountyUnclassifiable/Attainment.
    Dawson CountyUnclassifiable/Attainment.
    Deuel CountyUnclassifiable/Attainment.
    Dixon CountyUnclassifiable/Attainment.
    Dodge CountyUnclassifiable/Attainment.
    Douglas CountyUnclassifiable/Attainment.
    Dundy CountyUnclassifiable/Attainment.
    Fillmore CountyUnclassifiable/Attainment.
    Franklin CountyUnclassifiable/Attainment.
    Frontier CountyUnclassifiable/Attainment.
    Furnas CountyUnclassifiable/Attainment.
    Gage CountyUnclassifiable/Attainment.
    Garden CountyUnclassifiable/Attainment.
    Garfield CountyUnclassifiable/Attainment.
    Gosper CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Greeley CountyUnclassifiable/Attainment.
    Hall CountyUnclassifiable/Attainment.
    Hamilton CountyUnclassifiable/Attainment.
    Harlan CountyUnclassifiable/Attainment.
    Hayes CountyUnclassifiable/Attainment.
    Hitchcock CountyUnclassifiable/Attainment.
    Holt CountyUnclassifiable/Attainment.
    Hooker CountyUnclassifiable/Attainment.
    Howard CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Johnson CountyUnclassifiable/Attainment.
    Kearney CountyUnclassifiable/Attainment.
    Keith CountyUnclassifiable/Attainment.
    Keya Paha CountyUnclassifiable/Attainment.
    Kimball CountyUnclassifiable/Attainment.
    Knox CountyUnclassifiable/Attainment.
    Lancaster CountyUnclassifiable/Attainment.
    Lincoln CountyUnclassifiable/Attainment.
    Logan CountyUnclassifiable/Attainment.
    Loup CountyUnclassifiable/Attainment.
    McPherson CountyUnclassifiable/Attainment.
    Madison CountyUnclassifiable/Attainment.
    Merrick CountyUnclassifiable/Attainment.
    Morrill CountyUnclassifiable/Attainment.
    Nance CountyUnclassifiable/Attainment.
    Nemaha CountyUnclassifiable/Attainment.
    Nuckolls CountyUnclassifiable/Attainment.
    Otoe CountyUnclassifiable/Attainment.
    Pawnee CountyUnclassifiable/Attainment.
    Perkins CountyUnclassifiable/Attainment.
    Phelps CountyUnclassifiable/Attainment.
    Pierce CountyUnclassifiable/Attainment.
    Platte CountyUnclassifiable/Attainment.
    Polk CountyUnclassifiable/Attainment.
    Red Willow CountyUnclassifiable/Attainment.
    Richardson CountyUnclassifiable/Attainment.
    Rock CountyUnclassifiable/Attainment.
    Saline CountyUnclassifiable/Attainment.
    Sarpy CountyUnclassifiable/Attainment.
    Saunders CountyUnclassifiable/Attainment.
    Scotts Bluff CountyUnclassifiable/Attainment.
    Seward CountyUnclassifiable/Attainment.
    Sheridan CountyUnclassifiable/Attainment.
    Sherman CountyUnclassifiable/Attainment.
    Sioux CountyUnclassifiable/Attainment.
    Stanton CountyUnclassifiable/Attainment.
    Thayer CountyUnclassifiable/Attainment.
    Thomas CountyUnclassifiable/Attainment.
    Thurston CountyUnclassifiable/Attainment.
    Valley CountyUnclassifiable/Attainment.
    Washington CountyUnclassifiable/Attainment.
    Wayne CountyUnclassifiable/Attainment.
    Webster CountyUnclassifiable/Attainment.
    Wheeler CountyUnclassifiable/Attainment.
    York 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.

    Nebraska - 2006 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    Statewide:
    Adams CountyUnclassifiable/Attainment.
    Antelope CountyUnclassifiable/Attainment.
    Arthur CountyUnclassifiable/Attainment.
    Banner CountyUnclassifiable/Attainment.
    Blaine CountyUnclassifiable/Attainment.
    Boone CountyUnclassifiable/Attainment.
    Box Butte CountyUnclassifiable/Attainment.
    Boyd CountyUnclassifiable/Attainment.
    Brown CountyUnclassifiable/Attainment.
    Buffalo CountyUnclassifiable/Attainment.
    Burt CountyUnclassifiable/Attainment.
    Butler CountyUnclassifiable/Attainment.
    Cass CountyUnclassifiable/Attainment.
    Cedar CountyUnclassifiable/Attainment.
    Chase CountyUnclassifiable/Attainment.
    Cherry CountyUnclassifiable/Attainment.
    Cheyenne CountyUnclassifiable/Attainment.
    Clay CountyUnclassifiable/Attainment.
    Colfax CountyUnclassifiable/Attainment.
    Cuming CountyUnclassifiable/Attainment.
    Custer CountyUnclassifiable/Attainment.
    Dakota CountyUnclassifiable/Attainment.
    Dawes CountyUnclassifiable/Attainment.
    Dawson CountyUnclassifiable/Attainment.
    Deuel CountyUnclassifiable/Attainment.
    Dixon CountyUnclassifiable/Attainment.
    Dodge CountyUnclassifiable/Attainment.
    Douglas CountyUnclassifiable/Attainment.
    Dundy CountyUnclassifiable/Attainment.
    Fillmore CountyUnclassifiable/Attainment.
    Franklin CountyUnclassifiable/Attainment.
    Frontier CountyUnclassifiable/Attainment.
    Furnas CountyUnclassifiable/Attainment.
    Gage CountyUnclassifiable/Attainment.
    Garden CountyUnclassifiable/Attainment.
    Garfield CountyUnclassifiable/Attainment.
    Gosper CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Greeley CountyUnclassifiable/Attainment.
    Hall CountyUnclassifiable/Attainment.
    Hamilton CountyUnclassifiable/Attainment.
    Harlan CountyUnclassifiable/Attainment.
    Hayes CountyUnclassifiable/Attainment.
    Hitchcock CountyUnclassifiable/Attainment.
    Holt CountyUnclassifiable/Attainment.
    Hooker CountyUnclassifiable/Attainment.
    Howard CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Johnson CountyUnclassifiable/Attainment.
    Kearney CountyUnclassifiable/Attainment.
    Keith CountyUnclassifiable/Attainment.
    Keya Paha CountyUnclassifiable/Attainment.
    Kimball CountyUnclassifiable/Attainment.
    Knox CountyUnclassifiable/Attainment.
    Lancaster CountyUnclassifiable/Attainment.
    Lincoln CountyUnclassifiable/Attainment.
    Logan CountyUnclassifiable/Attainment.
    Loup CountyUnclassifiable/Attainment.
    McPherson CountyUnclassifiable/Attainment.
    Madison CountyUnclassifiable/Attainment.
    Merrick CountyUnclassifiable/Attainment.
    Morrill CountyUnclassifiable/Attainment.
    Nance CountyUnclassifiable/Attainment.
    Nemaha CountyUnclassifiable/Attainment.
    Nuckolls CountyUnclassifiable/Attainment.
    Otoe CountyUnclassifiable/Attainment.
    Pawnee CountyUnclassifiable/Attainment.
    Perkins CountyUnclassifiable/Attainment.
    Phelps CountyUnclassifiable/Attainment.
    Pierce CountyUnclassifiable/Attainment.
    Platte CountyUnclassifiable/Attainment.
    Polk CountyUnclassifiable/Attainment.
    Red Willow CountyUnclassifiable/Attainment.
    Richardson CountyUnclassifiable/Attainment.
    Rock CountyUnclassifiable/Attainment.
    Saline CountyUnclassifiable/Attainment.
    Sarpy CountyUnclassifiable/Attainment.
    Saunders CountyUnclassifiable/Attainment.
    Scotts Bluff CountyUnclassifiable/Attainment.
    Seward CountyUnclassifiable/Attainment.
    Sheridan CountyUnclassifiable/Attainment.
    Sherman CountyUnclassifiable/Attainment.
    Sioux CountyUnclassifiable/Attainment.
    Stanton CountyUnclassifiable/Attainment.
    Thayer CountyUnclassifiable/Attainment.
    Thomas CountyUnclassifiable/Attainment.
    Thurston CountyUnclassifiable/Attainment.
    Valley CountyUnclassifiable/Attainment.
    Washington CountyUnclassifiable/Attainment.
    Wayne CountyUnclassifiable/Attainment.
    Webster CountyUnclassifiable/Attainment.
    Wheeler CountyUnclassifiable/Attainment.
    York 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.

    Nebraska - NO2 (1971 Annual Standard)

    Designated area Does not meet primary standards Cannot be classified or better than national standards
    Entire StateX

    Nebraska - NO2 (2010 1-Hour Standard)

    Designated area Designationa
    Date1 Type
    Adams CountyUnclassifiable/Attainment.
    Antelope CountyUnclassifiable/Attainment.
    Arthur CountyUnclassifiable/Attainment.
    Banner CountyUnclassifiable/Attainment.
    Blaine CountyUnclassifiable/Attainment.
    Boone CountyUnclassifiable/Attainment.
    Box Butte CountyUnclassifiable/Attainment.
    Boyd CountyUnclassifiable/Attainment.
    Brown CountyUnclassifiable/Attainment.
    Buffalo CountyUnclassifiable/Attainment.
    Burt CountyUnclassifiable/Attainment.
    Butler CountyUnclassifiable/Attainment.
    Cass CountyUnclassifiable/Attainment.
    Cedar CountyUnclassifiable/Attainment.
    Chase CountyUnclassifiable/Attainment.
    Cherry CountyUnclassifiable/Attainment.
    Cheyenne CountyUnclassifiable/Attainment.
    Clay CountyUnclassifiable/Attainment.
    Colfax CountyUnclassifiable/Attainment.
    Cuming CountyUnclassifiable/Attainment.
    Custer CountyUnclassifiable/Attainment.
    Dakota CountyUnclassifiable/Attainment.
    Dawes CountyUnclassifiable/Attainment.
    Dawson CountyUnclassifiable/Attainment.
    Deuel CountyUnclassifiable/Attainment.
    Dixon CountyUnclassifiable/Attainment.
    Dodge CountyUnclassifiable/Attainment.
    Douglas CountyUnclassifiable/Attainment.
    Dundy CountyUnclassifiable/Attainment.
    Fillmore CountyUnclassifiable/Attainment.
    Franklin CountyUnclassifiable/Attainment.
    Frontier CountyUnclassifiable/Attainment.
    Furnas CountyUnclassifiable/Attainment.
    Gage CountyUnclassifiable/Attainment.
    Garden CountyUnclassifiable/Attainment.
    Garfield CountyUnclassifiable/Attainment.
    Gosper CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Greeley CountyUnclassifiable/Attainment.
    Hall CountyUnclassifiable/Attainment.
    Hamilton CountyUnclassifiable/Attainment.
    Harlan CountyUnclassifiable/Attainment.
    Hayes CountyUnclassifiable/Attainment.
    Hitchcock CountyUnclassifiable/Attainment.
    Holt CountyUnclassifiable/Attainment.
    Hooker CountyUnclassifiable/Attainment.
    Howard CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Johnson CountyUnclassifiable/Attainment.
    Kearney CountyUnclassifiable/Attainment.
    Keith CountyUnclassifiable/Attainment.
    Keya Paha CountyUnclassifiable/Attainment.
    Kimball CountyUnclassifiable/Attainment.
    Knox CountyUnclassifiable/Attainment.
    Lancaster CountyUnclassifiable/Attainment.
    Lincoln CountyUnclassifiable/Attainment.
    Logan CountyUnclassifiable/Attainment.
    Loup CountyUnclassifiable/Attainment.
    McPherson CountyUnclassifiable/Attainment.
    Madison CountyUnclassifiable/Attainment.
    Merrick CountyUnclassifiable/Attainment.
    Morrill CountyUnclassifiable/Attainment.
    Nance CountyUnclassifiable/Attainment.
    Nemaha CountyUnclassifiable/Attainment.
    Nuckolls CountyUnclassifiable/Attainment.
    Otoe CountyUnclassifiable/Attainment.
    Pawnee CountyUnclassifiable/Attainment.
    Perkins CountyUnclassifiable/Attainment.
    Phelps CountyUnclassifiable/Attainment.
    Pierce CountyUnclassifiable/Attainment.
    Platte CountyUnclassifiable/Attainment.
    Polk CountyUnclassifiable/Attainment.
    Red Willow CountyUnclassifiable/Attainment.
    Richardson CountyUnclassifiable/Attainment.
    Rock CountyUnclassifiable/Attainment.
    Saline CountyUnclassifiable/Attainment.
    Sarpy CountyUnclassifiable/Attainment.
    Saunders CountyUnclassifiable/Attainment.
    Scotts Bluff CountyUnclassifiable/Attainment.
    Seward CountyUnclassifiable/Attainment.
    Sheridan CountyUnclassifiable/Attainment.
    Sherman CountyUnclassifiable/Attainment.
    Sioux CountyUnclassifiable/Attainment.
    Stanton CountyUnclassifiable/Attainment.
    Thayer CountyUnclassifiable/Attainment.
    Thomas CountyUnclassifiable/Attainment.
    Thurston CountyUnclassifiable/Attainment.
    Valley CountyUnclassifiable/Attainment.
    Washington CountyUnclassifiable/Attainment.
    Wayne CountyUnclassifiable/Attainment.
    Webster CountyUnclassifiable/Attainment.
    Wheeler CountyUnclassifiable/Attainment.
    York 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.

    Nebraska - 1997 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designationa Category/classification
    Date1 Type Date1 Type
    Statewide:Unclassifiable/Attainment
    Adams County
    Antelope County
    Arthur County
    Banner County
    Blaine County
    Boone County
    Box Butte County
    Boyd County
    Brown County
    Buffalo County
    Burt County
    Butler County
    Cass County
    Cedar County
    Chase County
    Cherry County
    Cheyenne County
    Clay County
    Colfax County
    Cuming County
    Custer County
    Dakota County
    Dawes County
    Dawson County
    Deuel County
    Dixon County
    Dodge County
    Douglas County
    Dundy County
    Fillmore County
    Franklin County
    Frontier County
    Furnas County
    Gage County
    Garden County
    Garfield County
    Gosper County
    Grant County
    Greeley County
    Hall County
    Hamilton County
    Harlan County
    Hayes County
    Hitchcock County
    Holt County
    Hooker County
    Howard County
    Jefferson County
    Johnson County
    Kearney County
    Keith County
    Keya Paha County
    Kimball County
    Knox County
    Lancaster County
    Lincoln County
    Logan County
    Loup County
    Madison County
    McPherson County
    Merrick County
    Morrill County
    Nance County
    Nemaha County
    Nuckolls County
    Otoe County
    Pawnee County
    Perkins County
    Phelps County
    Pierce County
    Platte County
    Polk County
    Red Willow County
    Richardson County
    Rock County
    Saline County
    Sarpy County
    Saunders County
    Scotts Bluff County
    Seward County
    Sheridan County
    Sherman County
    Sioux County
    Stanton County
    Thayer County
    Thomas County
    Thurston County
    Valley County
    Washington County
    Wayne County
    Webster County
    Wheeler County
    York County

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

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

    Nebraska - 2008 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designation Classification
    Date1 Type Date1 Type
    Statewide:2 Unclassifiable/Attainment
    Adams County
    Antelope County
    Arthur County
    Banner County
    Blaine County
    Boone County
    Box Butte County
    Boyd County
    Brown County
    Buffalo County
    Burt County
    Butler County
    Cass County
    Cedar County
    Chase County
    Cherry County
    Cheyenne County
    Clay County
    Colfax County
    Cuming County
    Custer County
    Dakota County
    Dawes County
    Dawson County
    Deuel County
    Dixon County
    Dodge County
    Douglas County
    Dundy County
    Fillmore County
    Franklin County
    Frontier County
    Furnas County
    Gage County
    Garden County
    Garfield County
    Gosper County
    Grant County
    Greeley County
    Hall County
    Hamilton County
    Harlan County
    Hayes County
    Hitchcock County
    Holt County
    Hooker County
    Howard County
    Jefferson County
    Johnson County
    Kearney County
    Keith County
    Keya Paha County
    Kimball County
    Knox County
    Lancaster County
    Lincoln County
    Logan County
    Loup County
    McPherson County
    Madison County
    Merrick County
    Morrill County
    Nance County
    Nemaha County
    Nuckolls County
    Otoe County
    Pawnee County
    Perkins County
    Phelps County
    Pierce County
    Platte County
    Polk County
    Red Willow County
    Richardson County
    Rock County
    Saline County
    Sarpy County
    Saunders County
    Scotts Bluff County
    Seward County
    Sheridan County
    Sherman County
    Sioux County
    Stanton County
    Thayer County
    Thomas County
    Thurston County
    Valley County
    Washington County
    Wayne County
    Webster County
    Wheeler County
    York County

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

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

    Nebraska - 2015 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area1 Designation Classification
    Date2 Type Date Type
    StatewideAttainment/Unclassifiable
    Adams County
    Antelope County
    Arthur County
    Banner County
    Blaine County
    Boone County
    Box Butte County
    Boyd County
    Brown County
    Buffalo County
    Burt County
    Butler County
    Cass County
    Cedar County
    Chase County
    Cherry County
    Cheyenne County
    Clay County
    Colfax County
    Cuming County
    Custer County
    Dakota County
    Dawes County
    Dawson County
    Deuel County
    Dixon County
    Dodge County
    Douglas County
    Dundy County
    Fillmore County
    Franklin County
    Frontier County
    Furnas County
    Gage County
    Garden County
    Garfield County
    Gosper County
    Grant County
    Greeley County
    Hall County
    Hamilton County
    Harlan County
    Hayes County
    Hitchcock County
    Holt County
    Hooker County
    Howard County
    Jefferson County
    Johnson County
    Kearney County
    Keith County
    Keya Paha County
    Kimball County
    Knox County
    Lancaster County
    Lincoln County
    Logan County
    Loup County
    McPherson County
    Madison County
    Merrick County
    Morrill County
    Nance County
    Nemaha County
    Nuckolls County
    Otoe County
    Pawnee County
    Perkins County
    Phelps County
    Pierce County
    Platte County
    Polk County
    Red Willow County
    Richardson County
    Rock County
    Saline County
    Sarpy County
    Saunders County
    Scotts Bluff County
    Seward County
    Sheridan County
    Sherman County
    Sioux County
    Stanton County
    Thayer County
    Thomas County
    Thurston County
    Valley County
    Washington County
    Wayne County
    Webster County
    Wheeler County
    York County

    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 January 16, 2018, unless otherwise noted.

    Nebraska - 2008 Lead NAAQS

    Designated area Designation for the 2008 NAAQSa
    Date1 Type
    Whole 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 § 81.328, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.