1. Regulations
  2. title 40
  3. chapter I-i19
  4. part 81
  5. subpart C
  6. § 81.328

View all text of Subpart C [§ 81.300 - § 81.356]

§ 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 0861 X AQCR 145X AQCR 146: Cass CountyX Dawson County1 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 area 1Designation Date 2Type 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 Date 1Type Date 1Type 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 Date 1Type Date 1Type 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 Designation aClassification Date 1Type 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 area 1Designation Classification Date 2Type Date 2Type 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 Designation aClassification Date 1Type 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 Designation aClassification Date 1Type 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 Designation aDate 1Type 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 Designation aCategory/classification Date 1Type Date 1Type 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 Date 1Type Date 1Type Statewide: 2Unclassifiable/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 area 1Designation Classification Date 2Type 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 NAAQS aDate 1Type 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: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.

AUTHORITY: 42 U.S.C. 7401,

SOURCE: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.

CITE AS: 40 CFR 81.328