40 CFR 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 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 PM2.5 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 PM2.5 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 PM2.5 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 PM2.5 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—NO2 (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—NO2 (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.