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 130 X Rest of State, AQCR 172 X North Dakota—2010 Sulfur Dioxide NAAQS [Primary] Designated area 1 Designation Date 2 Type McLean County/Eastern Mercer County, ND 9/12/2016 Attainment/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, ND 9/12/2016 Attainment/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 County 4/30/2021 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 Date 1 Type Date 1 Type AQCR 130 Metropolitan Fargo-Moorhead Intrastate Cass County Unclassifiable/Attainment Rest of State Unclassifiable/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 Date 1 Type Date 1 Type AQCR 130 Metropolitan Fargo-Moorhead Interstate. Cass County Unclassifiable/Attainment Rest of State, AQCR 172 Unclassifiable/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 130 11/15/1990 Unclassifiable Rest of State, AQCR 172 1 11/15/1990 Unclassifiable 1 Denotes a single area designation for PSD baseline area purposes. North Dakota—1997 Annual PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type AQCR 130 Metropolitan Fargo-Moorhead Interstate: Cass County Unclassifiable/Attainment. Rest of State, AQCR 172: Adams County Unclassifiable/Attainment. Barnes County Unclassifiable/Attainment. Benson County Unclassifiable/Attainment. Billings County Unclassifiable/Attainment. Bottineau County Unclassifiable/Attainment. Bowman County Unclassifiable/Attainment. Burke County Unclassifiable/Attainment. Burleigh County Unclassifiable/Attainment. Cavalier County Unclassifiable/Attainment. Dickey County Unclassifiable/Attainment. Divide County Unclassifiable/Attainment. Dunn County Unclassifiable/Attainment. Eddy County Unclassifiable/Attainment. Emmons County Unclassifiable/Attainment. Foster County Unclassifiable/Attainment. Golden Valley County Unclassifiable/Attainment. Grand Forks County Unclassifiable/Attainment. Grant County Unclassifiable/Attainment. Griggs County Unclassifiable/Attainment. Hettinger County Unclassifiable/Attainment. Kidder County Unclassifiable/Attainment. LaMoure County Unclassifiable/Attainment. Logan County Unclassifiable/Attainment. McHenry County Unclassifiable/Attainment. McIntosh County Unclassifiable/Attainment. McKenzie County Unclassifiable/Attainment. McLean County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Morton County Unclassifiable/Attainment. Mountrail County Unclassifiable/Attainment. Nelson County Unclassifiable/Attainment. Oliver County Unclassifiable/Attainment. Pembina County Unclassifiable/Attainment. Pierce County Unclassifiable/Attainment. Ramsey County Unclassifiable/Attainment. Ransom County Unclassifiable/Attainment. Renville County Unclassifiable/Attainment. Richland County Unclassifiable/Attainment. Rolette County Unclassifiable/Attainment. Sargent County Unclassifiable/Attainment. Sheridan County Unclassifiable/Attainment. Sioux County Unclassifiable/Attainment. Slope County Unclassifiable/Attainment. Stark County Unclassifiable/Attainment. Steele County Unclassifiable/Attainment. Stutsman County Unclassifiable/Attainment. Towner County Unclassifiable/Attainment. Traill County Unclassifiable/Attainment. Walsh County Unclassifiable/Attainment. Ward County Unclassifiable/Attainment. Wells County Unclassifiable/Attainment. Williams County Unclassifiable/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 PM 2.5 NAAQS [Primary] Designated area 1 Designation Classification Date 2 Type Date 2 Type AQCR 130 Metropolitan Fargo-Moorhead Interstate: Cass County Unclassifiable/Attainment Rest of State, AQCR 172: Adams County Unclassifiable/Attainment Barnes County Unclassifiable/Attainment Benson County Unclassifiable/Attainment Billings County Unclassifiable/Attainment Bottineau County Unclassifiable/Attainment Bowman County Unclassifiable/Attainment Burke County Unclassifiable/Attainment Burleigh County Unclassifiable/Attainment Cavalier County Unclassifiable/Attainment Dickey County Unclassifiable/Attainment Divide County Unclassifiable/Attainment Dunn County Unclassifiable/Attainment Eddy County Unclassifiable/Attainment Emmons County Unclassifiable/Attainment Foster County Unclassifiable/Attainment Golden Valley County Unclassifiable/Attainment Grand Forks County Unclassifiable/Attainment Grant County Unclassifiable/Attainment Griggs County Unclassifiable/Attainment Hettinger County Unclassifiable/Attainment Kidder County Unclassifiable/Attainment LaMoure County Unclassifiable/Attainment Logan County Unclassifiable/Attainment McHenry County Unclassifiable/Attainment McIntosh County Unclassifiable/Attainment McKenzie County Unclassifiable/Attainment McLean County Unclassifiable/Attainment Mercer County Unclassifiable/Attainment Morton County Unclassifiable/Attainment Mountrail County Unclassifiable/Attainment Nelson County Unclassifiable/Attainment Oliver County Unclassifiable/Attainment Pembina County Unclassifiable/Attainment Pierce County Unclassifiable/Attainment Ramsey County Unclassifiable/Attainment Ransom County Unclassifiable/Attainment Renville County Unclassifiable/Attainment Richland County Unclassifiable/Attainment Rolette County Unclassifiable/Attainment Sargent County Unclassifiable/Attainment Sheridan County Unclassifiable/Attainment Sioux County Unclassifiable/Attainment Slope County Unclassifiable/Attainment Stark County Unclassifiable/Attainment Steele County Unclassifiable/Attainment Stutsman County Unclassifiable/Attainment Towner County Unclassifiable/Attainment Traill County Unclassifiable/Attainment Walsh County Unclassifiable/Attainment Ward County Unclassifiable/Attainment Wells County Unclassifiable/Attainment Williams County Unclassifiable/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 PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type AQCR 130 Metropolitan Fargo-Moorhead Interstate: Cass County Unclassifiable/Attainment. Rest of State, AQCR 172: Adams County Unclassifiable/Attainment. Barnes County Unclassifiable/Attainment. Benson County Unclassifiable/Attainment. Billings County Unclassifiable/Attainment. Bottineau County Unclassifiable/Attainment. Bowman County Unclassifiable/Attainment. Burke County Unclassifiable/Attainment. Burleigh County Unclassifiable/Attainment. Cavalier County Unclassifiable/Attainment. Dickey County Unclassifiable/Attainment. Divide County Unclassifiable/Attainment. Dunn County Unclassifiable/Attainment. Eddy County Unclassifiable/Attainment. Emmons County Unclassifiable/Attainment. Foster County Unclassifiable/Attainment. Golden Valley County Unclassifiable/Attainment. Grand Forks County Unclassifiable/Attainment. Grant County Unclassifiable/Attainment. Griggs County Unclassifiable/Attainment. Hettinger County Unclassifiable/Attainment. Kidder County Unclassifiable/Attainment. LaMoure County Unclassifiable/Attainment. Logan County Unclassifiable/Attainment. McHenry County Unclassifiable/Attainment. McIntosh County Unclassifiable/Attainment. McKenzie County Unclassifiable/Attainment. McLean County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Morton County Unclassifiable/Attainment. Mountrail County Unclassifiable/Attainment. Nelson County Unclassifiable/Attainment. Oliver County Unclassifiable/Attainment. Pembina County Unclassifiable/Attainment. Pierce County Unclassifiable/Attainment. Ramsey County Unclassifiable/Attainment. Ransom County Unclassifiable/Attainment. Renville County Unclassifiable/Attainment. Richland County Unclassifiable/Attainment. Rolette County Unclassifiable/Attainment. Sargent County Unclassifiable/Attainment. Sheridan County Unclassifiable/Attainment. Sioux County Unclassifiable/Attainment. Slope County Unclassifiable/Attainment. Stark County Unclassifiable/Attainment. Steele County Unclassifiable/Attainment. Stutsman County Unclassifiable/Attainment. Towner County Unclassifiable/Attainment. Traill County Unclassifiable/Attainment. Walsh County Unclassifiable/Attainment. Ward County Unclassifiable/Attainment. Wells County Unclassifiable/Attainment. Williams County Unclassifiable/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 PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type AQCR 130 Metropolitan Fargo-Moorhead Interstate: Cass County Unclassifiable/Attainment. Rest of State, AQCR 172: Adams County Unclassifiable/Attainment. Barnes County Unclassifiable/Attainment. Benson County Unclassifiable/Attainment. Billings County Unclassifiable/Attainment. Bottineau County Unclassifiable/Attainment. Bowman County Unclassifiable/Attainment. Burke County Unclassifiable/Attainment. Burleigh County Unclassifiable/Attainment. Cavalier County Unclassifiable/Attainment. Dickey County Unclassifiable/Attainment. Divide County Unclassifiable/Attainment. Dunn County Unclassifiable/Attainment. Eddy County Unclassifiable/Attainment. Emmons County Unclassifiable/Attainment. Foster County Unclassifiable/Attainment. Golden Valley County Unclassifiable/Attainment. Grand Forks County Unclassifiable/Attainment. Grant County Unclassifiable/Attainment. Griggs County Unclassifiable/Attainment. Hettinger County Unclassifiable/Attainment. Kidder County Unclassifiable/Attainment. LaMoure County Unclassifiable/Attainment. Logan County Unclassifiable/Attainment. McHenry County Unclassifiable/Attainment. McIntosh County Unclassifiable/Attainment. McKenzie County Unclassifiable/Attainment. McLean County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Morton County Unclassifiable/Attainment. Mountrail County Unclassifiable/Attainment. Nelson County Unclassifiable/Attainment. Oliver County Unclassifiable/Attainment. Pembina County Unclassifiable/Attainment. Pierce County Unclassifiable/Attainment. Ramsey County Unclassifiable/Attainment. Ransom County Unclassifiable/Attainment. Renville County Unclassifiable/Attainment. Richland County Unclassifiable/Attainment. Rolette County Unclassifiable/Attainment. Sargent County Unclassifiable/Attainment. Sheridan County Unclassifiable/Attainment. Sioux County Unclassifiable/Attainment. Slope County Unclassifiable/Attainment. Stark County Unclassifiable/Attainment. Steele County Unclassifiable/Attainment. Stutsman County Unclassifiable/Attainment. Towner County Unclassifiable/Attainment. Traill County Unclassifiable/Attainment. Walsh County Unclassifiable/Attainment. Ward County Unclassifiable/Attainment. Wells County Unclassifiable/Attainment. Williams County Unclassifiable/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—NO 2 (1971 Annual Standard) Designated area Does not meet primary standards Cannot be classified or better than national standards Metropolitan Fargo-Moorhead (Minn), AQCR 130 X Rest of State, AQCR 172 X North Dakota—NO 2 (2010 1-Hour Standard) Designated area Designation a Date 1 Type State of North Dakota Unclassifiable/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 Designation a Category/classification Date 1 Type Date 1 Type AQCR 130 Metropolitan Fargo-Moorhead Interstate: Cass County Unclassifiable/Attainment Rest of State, AQCR 172 Unclassifiable/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 Date 1 Type Date 1 Type Statewide and Areas of Indian Country Unclassifiable/Attainment 1 This date is July 20, 2012, unless otherwise noted. North Dakota—2015 8-Hour Ozone NAAQS [Primary and Secondary] Designated area 1 Designation Classification Date 2 Type Date Type Statewide 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 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 NAAQS a Date 1 Type Whole State Unclassifiable/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: 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.