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 Code of Federal Regulations (Last Updated: November 8, 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

  § 81.335 - North Dakota.  

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  • § 81.335 North Dakota.

    North Dakota - 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
    Metropolitan Fargo-Moorhead (Minn), AQCR 130X
    Rest of State, AQCR 172X

    North Dakota - 2010 Sulfur Dioxide NAAQS

    [Primary]

    Designated area1 Designation
    Date2 Type
    McLean County/Eastern Mercer County, ND9/12/16Attainment/Unclassifiable.
    McLean County
    Mercer County (part)
    Area east of CR-37/ND 31, east/north of ND 200 ALT, west of the eastern border of Mercer County/Missouri River, south of the Knife River National Historic Site.
    Central Mercer County, ND9/12/16Attainment/Unclassifiable.
    Mercer County (part)
    Area west of ND 49/61st Ave SW, north of Co. Rd 15/17th St. SW, east of Co. Rd 13, south and east of the town Zap, south of 8th St. SW/ND 200
    Rest of State:Attainment/Unclassifiable.
    Adams County
    Barnes County
    Benson County
    Billings County
    Bottineau County
    Bowman County
    Burke County
    Burleigh County
    Cass County
    Cavalier County
    Dickey County
    Divide County
    Dunn County
    Eddy County
    Emmons County
    Foster County
    Golden Valley County
    Grand Forks County
    Grant County
    Griggs County
    Hettinger County
    Kidder County
    LaMoure County
    Logan County
    McHenry County
    McIntosh County
    McKenzie County
    Mercer County (part) (remainder)
    Morton County
    Mountrail County
    Nelson County
    Oliver County
    Pembina County
    Pierce County
    Ramsey County
    Ransom County
    Renville County
    Richland County
    Rolette County
    Sargent County
    Sheridan County
    Sioux County
    Slope County
    Stark County
    Steele County
    Stutsman County
    Towner County
    Traill County
    Walsh County
    Ward County
    Wells County
    Williams County4/30/2021

    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.

    North Dakota - Carbon Monoxide

    Designated Area Designation Classification
    Date1 Type Date1 Type
    AQCR 130 Metropolitan Fargo-Moorhead Intrastate
    Cass CountyUnclassifiable/Attainment
    Rest of StateUnclassifiable/Attainment
    Adams County
    Barnes County
    Benson County
    Billings County
    Bottineau County
    Bowman County
    Burke County
    Burleigh County
    Cavalier County
    Dickey County
    Divide County
    Dunn County
    Eddy County
    Emmons County
    Foster County
    Golden Valley County
    Grand Forks County
    Grant County
    Griggs County
    Hettinger County
    Kidder County
    La Moure County
    Logan County
    McHenry County
    McIntosh County
    McKenzie County
    McLean County
    Mercer County
    Morton County
    Mountrail County
    Nelson County
    Oliver County
    Pembina County
    Pierce County
    Ramsey County
    Ransom County
    Renville County
    Richland County
    Rolette County
    Sargent County
    Sheridan County
    Sioux County
    Slope County
    Stark County
    Steele County
    Stutsman County
    Towner County
    Traill County
    Walsh County
    Ward County
    Wells County
    Williams County

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

    North Dakota - Ozone (1-Hour Standard)2

    Designated area Designation Classification
    Date1 Type Date1 Type
    AQCR 130 Metropolitan Fargo-Moorhead Interstate.
    Cass CountyUnclassifiable/Attainment
    Rest of State, AQCR 172Unclassifiable/Attainment
    Adams County
    Barnes County
    Benson County
    Billings County
    Bottineau County
    Bowman County
    Burke County
    Burleigh County
    Cavalier County
    Dickey County
    Divide County
    Dunn County
    Eddy County
    Emmons County
    Foster County
    Golden Valley County
    Grand Forks County
    Grant County
    Griggs County
    Hettinger County
    Kidder County
    La Moure County
    Logan County
    McHenry County
    McIntosh County
    McKenzie County
    McLean County
    Mercer County
    Morton County
    Mountrail County
    Nelson County
    Oliver County
    Pembina County
    Pierce County
    Ramsey County
    Ransom County
    Renville County
    Richland County
    Rolette County
    Sargent County
    Sheridan County
    Sioux County
    Slope County
    Stark County
    Steele County
    Stutsman County
    Towner County
    Traill County
    Walsh County
    Ward County
    Wells County
    Williams 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 North Dakota.

    North Dakota - PM-10

    Designated Area Designation Classification
    Date Type Date Type
    Metropolitan Fargo-Moorhead (Minn.), AQCR 13011/15/90Unclassifiable
    Rest of State, AQCR 1721 11/15/90Unclassifiable

    1 Denotes a single area designation for PSD baseline area purposes.

    North Dakota - 1997 Annual PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    AQCR 130 Metropolitan Fargo-Moorhead Interstate:
    Cass CountyUnclassifiable/Attainment.
    Rest of State, AQCR 172:
    Adams CountyUnclassifiable/Attainment.
    Barnes CountyUnclassifiable/Attainment.
    Benson CountyUnclassifiable/Attainment.
    Billings CountyUnclassifiable/Attainment.
    Bottineau CountyUnclassifiable/Attainment.
    Bowman CountyUnclassifiable/Attainment.
    Burke CountyUnclassifiable/Attainment.
    Burleigh CountyUnclassifiable/Attainment.
    Cavalier CountyUnclassifiable/Attainment.
    Dickey CountyUnclassifiable/Attainment.
    Divide CountyUnclassifiable/Attainment.
    Dunn CountyUnclassifiable/Attainment.
    Eddy CountyUnclassifiable/Attainment.
    Emmons CountyUnclassifiable/Attainment.
    Foster CountyUnclassifiable/Attainment.
    Golden Valley CountyUnclassifiable/Attainment.
    Grand Forks CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Griggs CountyUnclassifiable/Attainment.
    Hettinger CountyUnclassifiable/Attainment.
    Kidder CountyUnclassifiable/Attainment.
    LaMoure CountyUnclassifiable/Attainment.
    Logan CountyUnclassifiable/Attainment.
    McHenry CountyUnclassifiable/Attainment.
    McIntosh CountyUnclassifiable/Attainment.
    McKenzie CountyUnclassifiable/Attainment.
    McLean CountyUnclassifiable/Attainment.
    Mercer CountyUnclassifiable/Attainment.
    Morton CountyUnclassifiable/Attainment.
    Mountrail CountyUnclassifiable/Attainment.
    Nelson CountyUnclassifiable/Attainment.
    Oliver CountyUnclassifiable/Attainment.
    Pembina CountyUnclassifiable/Attainment.
    Pierce CountyUnclassifiable/Attainment.
    Ramsey CountyUnclassifiable/Attainment.
    Ransom CountyUnclassifiable/Attainment.
    Renville CountyUnclassifiable/Attainment.
    Richland CountyUnclassifiable/Attainment.
    Rolette CountyUnclassifiable/Attainment.
    Sargent CountyUnclassifiable/Attainment.
    Sheridan CountyUnclassifiable/Attainment.
    Sioux CountyUnclassifiable/Attainment.
    Slope CountyUnclassifiable/Attainment.
    Stark CountyUnclassifiable/Attainment.
    Steele CountyUnclassifiable/Attainment.
    Stutsman CountyUnclassifiable/Attainment.
    Towner CountyUnclassifiable/Attainment.
    Traill CountyUnclassifiable/Attainment.
    Walsh CountyUnclassifiable/Attainment.
    Ward CountyUnclassifiable/Attainment.
    Wells CountyUnclassifiable/Attainment.
    Williams 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.

    North Dakota - 2012 Annual PM2.5 NAAQS

    [Primary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    AQCR 130 Metropolitan Fargo-Moorhead Interstate:
    Cass CountyUnclassifiable/Attainment
    Rest of State, AQCR 172:
    Adams CountyUnclassifiable/Attainment
    Barnes CountyUnclassifiable/Attainment
    Benson CountyUnclassifiable/Attainment
    Billings CountyUnclassifiable/Attainment
    Bottineau CountyUnclassifiable/Attainment
    Bowman CountyUnclassifiable/Attainment
    Burke CountyUnclassifiable/Attainment
    Burleigh CountyUnclassifiable/Attainment
    Cavalier CountyUnclassifiable/Attainment
    Dickey CountyUnclassifiable/Attainment
    Divide CountyUnclassifiable/Attainment
    Dunn CountyUnclassifiable/Attainment
    Eddy CountyUnclassifiable/Attainment
    Emmons CountyUnclassifiable/Attainment
    Foster CountyUnclassifiable/Attainment
    Golden Valley CountyUnclassifiable/Attainment
    Grand Forks CountyUnclassifiable/Attainment
    Grant CountyUnclassifiable/Attainment
    Griggs CountyUnclassifiable/Attainment
    Hettinger CountyUnclassifiable/Attainment
    Kidder CountyUnclassifiable/Attainment
    LaMoure CountyUnclassifiable/Attainment
    Logan CountyUnclassifiable/Attainment
    McHenry CountyUnclassifiable/Attainment
    McIntosh CountyUnclassifiable/Attainment
    McKenzie CountyUnclassifiable/Attainment
    McLean CountyUnclassifiable/Attainment
    Mercer CountyUnclassifiable/Attainment
    Morton CountyUnclassifiable/Attainment
    Mountrail CountyUnclassifiable/Attainment
    Nelson CountyUnclassifiable/Attainment
    Oliver CountyUnclassifiable/Attainment
    Pembina CountyUnclassifiable/Attainment
    Pierce CountyUnclassifiable/Attainment
    Ramsey CountyUnclassifiable/Attainment
    Ransom CountyUnclassifiable/Attainment
    Renville CountyUnclassifiable/Attainment
    Richland CountyUnclassifiable/Attainment
    Rolette CountyUnclassifiable/Attainment
    Sargent CountyUnclassifiable/Attainment
    Sheridan CountyUnclassifiable/Attainment
    Sioux CountyUnclassifiable/Attainment
    Slope CountyUnclassifiable/Attainment
    Stark CountyUnclassifiable/Attainment
    Steele CountyUnclassifiable/Attainment
    Stutsman CountyUnclassifiable/Attainment
    Towner CountyUnclassifiable/Attainment
    Traill CountyUnclassifiable/Attainment
    Walsh CountyUnclassifiable/Attainment
    Ward CountyUnclassifiable/Attainment
    Wells CountyUnclassifiable/Attainment
    Williams 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.

    North Dakota - 1997 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    AQCR 130 Metropolitan Fargo-Moorhead Interstate:
    Cass CountyUnclassifiable/Attainment.
    Rest of State, AQCR 172:
    Adams CountyUnclassifiable/Attainment.
    Barnes CountyUnclassifiable/Attainment.
    Benson CountyUnclassifiable/Attainment.
    Billings CountyUnclassifiable/Attainment.
    Bottineau CountyUnclassifiable/Attainment.
    Bowman CountyUnclassifiable/Attainment.
    Burke CountyUnclassifiable/Attainment.
    Burleigh CountyUnclassifiable/Attainment.
    Cavalier CountyUnclassifiable/Attainment.
    Dickey CountyUnclassifiable/Attainment.
    Divide CountyUnclassifiable/Attainment.
    Dunn CountyUnclassifiable/Attainment.
    Eddy CountyUnclassifiable/Attainment.
    Emmons CountyUnclassifiable/Attainment.
    Foster CountyUnclassifiable/Attainment.
    Golden Valley CountyUnclassifiable/Attainment.
    Grand Forks CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Griggs CountyUnclassifiable/Attainment.
    Hettinger CountyUnclassifiable/Attainment.
    Kidder CountyUnclassifiable/Attainment.
    LaMoure CountyUnclassifiable/Attainment.
    Logan CountyUnclassifiable/Attainment.
    McHenry CountyUnclassifiable/Attainment.
    McIntosh CountyUnclassifiable/Attainment.
    McKenzie CountyUnclassifiable/Attainment.
    McLean CountyUnclassifiable/Attainment.
    Mercer CountyUnclassifiable/Attainment.
    Morton CountyUnclassifiable/Attainment.
    Mountrail CountyUnclassifiable/Attainment.
    Nelson CountyUnclassifiable/Attainment.
    Oliver CountyUnclassifiable/Attainment.
    Pembina CountyUnclassifiable/Attainment.
    Pierce CountyUnclassifiable/Attainment.
    Ramsey CountyUnclassifiable/Attainment.
    Ransom CountyUnclassifiable/Attainment.
    Renville CountyUnclassifiable/Attainment.
    Richland CountyUnclassifiable/Attainment.
    Rolette CountyUnclassifiable/Attainment.
    Sargent CountyUnclassifiable/Attainment.
    Sheridan CountyUnclassifiable/Attainment.
    Sioux CountyUnclassifiable/Attainment.
    Slope CountyUnclassifiable/Attainment.
    Stark CountyUnclassifiable/Attainment.
    Steele CountyUnclassifiable/Attainment.
    Stutsman CountyUnclassifiable/Attainment.
    Towner CountyUnclassifiable/Attainment.
    Traill CountyUnclassifiable/Attainment.
    Walsh CountyUnclassifiable/Attainment.
    Ward CountyUnclassifiable/Attainment.
    Wells CountyUnclassifiable/Attainment.
    Williams 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.

    North Dakota - 2006 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    AQCR 130 Metropolitan Fargo-Moorhead Interstate:
    Cass CountyUnclassifiable/Attainment.
    Rest of State, AQCR 172:
    Adams CountyUnclassifiable/Attainment.
    Barnes CountyUnclassifiable/Attainment.
    Benson CountyUnclassifiable/Attainment.
    Billings CountyUnclassifiable/Attainment.
    Bottineau CountyUnclassifiable/Attainment.
    Bowman CountyUnclassifiable/Attainment.
    Burke CountyUnclassifiable/Attainment.
    Burleigh CountyUnclassifiable/Attainment.
    Cavalier CountyUnclassifiable/Attainment.
    Dickey CountyUnclassifiable/Attainment.
    Divide CountyUnclassifiable/Attainment.
    Dunn CountyUnclassifiable/Attainment.
    Eddy CountyUnclassifiable/Attainment.
    Emmons CountyUnclassifiable/Attainment.
    Foster CountyUnclassifiable/Attainment.
    Golden Valley CountyUnclassifiable/Attainment.
    Grand Forks CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Griggs CountyUnclassifiable/Attainment.
    Hettinger CountyUnclassifiable/Attainment.
    Kidder CountyUnclassifiable/Attainment.
    LaMoure CountyUnclassifiable/Attainment.
    Logan CountyUnclassifiable/Attainment.
    McHenry CountyUnclassifiable/Attainment.
    McIntosh CountyUnclassifiable/Attainment.
    McKenzie CountyUnclassifiable/Attainment.
    McLean CountyUnclassifiable/Attainment.
    Mercer CountyUnclassifiable/Attainment.
    Morton CountyUnclassifiable/Attainment.
    Mountrail CountyUnclassifiable/Attainment.
    Nelson CountyUnclassifiable/Attainment.
    Oliver CountyUnclassifiable/Attainment.
    Pembina CountyUnclassifiable/Attainment.
    Pierce CountyUnclassifiable/Attainment.
    Ramsey CountyUnclassifiable/Attainment.
    Ransom CountyUnclassifiable/Attainment.
    Renville CountyUnclassifiable/Attainment.
    Richland CountyUnclassifiable/Attainment.
    Rolette CountyUnclassifiable/Attainment.
    Sargent CountyUnclassifiable/Attainment.
    Sheridan CountyUnclassifiable/Attainment.
    Sioux CountyUnclassifiable/Attainment.
    Slope CountyUnclassifiable/Attainment.
    Stark CountyUnclassifiable/Attainment.
    Steele CountyUnclassifiable/Attainment.
    Stutsman CountyUnclassifiable/Attainment.
    Towner CountyUnclassifiable/Attainment.
    Traill CountyUnclassifiable/Attainment.
    Walsh CountyUnclassifiable/Attainment.
    Ward CountyUnclassifiable/Attainment.
    Wells CountyUnclassifiable/Attainment.
    Williams 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.

    North Dakota - NO2 (1971 Annual Standard)

    Designated area Does not meet primary standards Cannot be classified or better than national standards
    Metropolitan Fargo-Moorhead (Minn), AQCR 130X
    Rest of State, AQCR 172X

    North Dakota - NO2 (2010 1-Hour Standard)

    Designated area Designationa
    Date1 Type
    State of North DakotaUnclassifiable/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.

    North Dakota - 1997 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designationa Category/classification
    Date1 Type Date1 Type
    AQCR 130 Metropolitan Fargo-Moorhead Interstate:
    Cass CountyUnclassifiable/Attainment
    Rest of State, AQCR 172Unclassifiable/Attainment
    Adams County
    Barnes County
    Benson County
    Billings County
    Bottineau County
    Bowman County
    Burke County
    Burleigh County
    Cavalier County
    Dickey County
    Divide County
    Dunn County
    Eddy County
    Emmons County
    Foster County
    Golden Valley County
    Grand Forks County
    Grant County
    Griggs County
    Hettinger County
    Kidder County
    LaMoure County
    Logan County
    McHenry County
    McIntosh County
    McKenzie County
    McLean County
    Mercer County
    Morton County
    Mountrail County
    Nelson County
    Oliver County
    Pembina County
    Pierce County
    Ramsey County
    Ransom County
    Renville County
    Richland County
    Rolette County
    Sargent County
    Sheridan County
    Sioux County
    Slope County
    Stark County
    Steele County
    Stutsman County
    Towner County
    Traill County
    Walsh County
    Ward County
    Wells County
    Williams 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.

    North Dakota - 2008 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designation Classification
    Date1 Type Date1 Type
    Statewide and Areas of Indian CountryUnclassifiable/Attainment

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

    North Dakota - 2015 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area1 Designation Classification
    Date2 Type Date Type
    StatewideAttainment/Unclassifiable
    Adams County
    Barnes County
    Benson County
    Billings County
    Bottineau County
    Bowman County
    Burke County
    Burleigh County
    Cass County
    Cavalier County
    Dickey County
    Divide County
    Dunn County
    Eddy County
    Emmons County
    Foster County
    Golden Valley County
    Grand Forks County
    Grant County
    Griggs County
    Hettinger County
    Kidder County
    LaMoure County
    Logan County
    McHenry County
    McIntosh County
    McKenzie County
    McLean County
    Mercer County
    Morton County
    Mountrail County
    Nelson County
    Oliver County
    Pembina County
    Pierce County
    Ramsey County
    Ransom County
    Renville County
    Richland County
    Rolette County
    Sargent County
    Sheridan County
    Sioux County
    Slope County
    Stark County
    Steele County
    Stutsman County
    Towner County
    Traill County
    Walsh County
    Ward County
    Wells County
    Williams 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.

    North Dakota - 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.

    [55 FR 23933, June 13, 1990]

    Editorial Note

    Editorial Note:

    For Federal Register citations affecting § 81.335, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.