40 CFR 81.337: Oklahoma.

Oklahoma—TSP

Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards

AQCR 017 X

AQCR 022 X

AQCR 184 X

AQCR 185 X

AQCR 186:

Tulsa County X

Portions of Muskogee County X

Portions of Mayes County X

Remainder of AQCR X

AQCR 187 X

AQCR 188 X

AQCR 189:

Portion of Comanche County X

Remainder of AQCR X

Oklahoma—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

AQCR 017 X

AQCR 184 X

AQCR 185 X

AQCR 186 X

AQCR 187 X

AQCR 188 X

AQCR 189 X

Oklahoma—2010 Sulfur Dioxide NAAQS

[Primary]

Designated area 1 Designation

Date 2 Type

Adair County Attainment/Unclassifiable.

Alfalfa County Attainment/Unclassifiable.

Atoka County Attainment/Unclassifiable.

Beaver County Attainment/Unclassifiable.

Beckham County Attainment/Unclassifiable.

Blaine County Attainment/Unclassifiable.

Bryan County Attainment/Unclassifiable.

Caddo County Attainment/Unclassifiable.

Canadian County Attainment/Unclassifiable.

Carter County Attainment/Unclassifiable.

Cherokee County Attainment/Unclassifiable.

Choctaw County 9/12/2016 Attainment/Unclassifiable.

Cimarron County Attainment/Unclassifiable.

Cleveland County Attainment/Unclassifiable.

Coal County Attainment/Unclassifiable.

Comanche County Attainment/Unclassifiable.

Cotton County Attainment/Unclassifiable.

Craig County Attainment/Unclassifiable.

Creek County Attainment/Unclassifiable.

Custer County Attainment/Unclassifiable.

Delaware County Attainment/Unclassifiable.

Dewey County Attainment/Unclassifiable.

Ellis County Attainment/Unclassifiable.

Garfield County 4/30/2021 Attainment/Unclassifiable.

Garvin County Attainment/Unclassifiable.

Grady County Attainment/Unclassifiable.

Grant County Attainment/Unclassifiable.

Greer County Attainment/Unclassifiable.

Harmon County Attainment/Unclassifiable.

Harper County Attainment/Unclassifiable.

Haskell County Attainment/Unclassifiable.

Hughes County Attainment/Unclassifiable.

Jackson County Attainment/Unclassifiable.

Jefferson County Attainment/Unclassifiable.

Johnston County Attainment/Unclassifiable.

Kay County Attainment/Unclassifiable.

Kingfisher County Attainment/Unclassifiable.

Kiowa County Attainment/Unclassifiable.

Latimer County Attainment/Unclassifiable.

Le Flore County Attainment/Unclassifiable.

Lincoln County Attainment/Unclassifiable.

Logan County Attainment/Unclassifiable.

Love County Attainment/Unclassifiable.

McClain County Attainment/Unclassifiable.

McCurtain County Attainment/Unclassifiable.

McIntosh County Attainment/Unclassifiable.

Major County Attainment/Unclassifiable.

Marshall County Attainment/Unclassifiable.

Mayes County 4/30/2021 Attainment/Unclassifiable.

Murray County Attainment/Unclassifiable.

Muskogee County 4/30/2021 Attainment/Unclassifiable.

Noble County 9/12/2016 Attainment/Unclassifiable.

Nowata County Attainment/Unclassifiable.

Okfuskee County Attainment/Unclassifiable.

Oklahoma County Attainment/Unclassifiable.

Okmulgee County Attainment/Unclassifiable.

Osage County Attainment/Unclassifiable.

Ottawa County Attainment/Unclassifiable.

Pawnee County Attainment/Unclassifiable.

Payne County Attainment/Unclassifiable.

Pittsburg County Attainment/Unclassifiable.

Pontotoc County Attainment/Unclassifiable.

Pottawatomie County Attainment/Unclassifiable.

Pushmataha County Attainment/Unclassifiable.

Roger Mills County Attainment/Unclassifiable.

Rogers County Attainment/Unclassifiable.

Seminole County Attainment/Unclassifiable.

Sequoyah County Attainment/Unclassifiable.

Stephens County Attainment/Unclassifiable.

Texas County Attainment/Unclassifiable.

Tillman County Attainment/Unclassifiable.

Tulsa County Attainment/Unclassifiable.

Wagoner County Attainment/Unclassifiable.

Washington County Attainment/Unclassifiable.

Washita County Attainment/Unclassifiable.

Woods County Attainment/Unclassifiable.

Woodward County Attainment/Unclassifiable.

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.

Oklahoma—Carbon Monoxide

Designated Area Designation Classification

Date 1 Type Date 1 Type

AQCR 017 Metropolitan Fort Smith Interstate Unclassifiable/Attainment

Adair County

Cherokee County

Le Flore County

Sequoyah County

AQCR 022 Shreveport-Texarkana-Tyler Interstate Unclassifiable/Attainment

McCurtain County

AQCR 184 Central Oklahoma Intrastate Unclassifiable/Attainment

Canadian County

Cleveland County

Grady County

Kingfisher County

Lincoln County

Logan County

McClain County

Oklahoma County

Pottawatomie County

AQCR 185 North Central Oklahoma Intrastate Unclassifiable/Attainment

Garfield County

Grant County

Kay County

Noble County

Payne County

AQCR 186 Northeastern Oklahoma Intrastate Unclassifiable/Attainment

Craig County

Creek County

Delaware County

Mayes County

Muskogee County

Nowata County

Okmulgee County

Osage County

Ottawa County

Pawnee County

Rogers County

Tulsa County

Wagoner County

Washington County

AQCR 187 Northwestern Oklahoma Intrastate Unclassifiable/Attainment

Alfalfa County

Beaver County

Blaine County

Cimarron County

Custer County

Dewey County

Ellis County

Harper County

Major County

Roger Mills County

Texas County

Woods County

Woodward County

AQCR 188 Southeastern Oklahoma Intrastate Unclassifiable/Attainment

Atoka County

Bryan County

Carter County

Choctaw County

Coal County

Garvin County

Haskell County

Hughes County

Johnston County

Latimer County

Love County

Marshall County

McIntosh County

Murray County

Okfuskee County

Pittsburg County

Pontotoc County

Pushmataha County

Seminole County

AQCR 189 Southwestern Oklahoma Intrastate Unclassifiable/Attainment

Beckham County

Caddo County

Comanche County

Cotton County

Greer County

Harmon County

Jackson County

Jefferson County

Kiowa County

Stephens County

Tillman County

Washita County

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

Oklahoma—Ozone (1-Hour Standard)2

Designated area Designation Classification

Date 1 Type Date 1 Type

AQCR 017 Metropolitan Fort Smith Interstate Unclassifiable/Attainment

Adair County

Cherokee County

Le Flore County

Sequoyah County

AQCR 022 Shreveport-Texarkana-Tyler Intrastate Unclassifiable/Attainment

McCurtain County

AQCR 184 Central Oklahoma Intrastate (part)

Cleveland County Unclassifiable/Attainment

Oklahoma County Unclassifiable/Attainment

AQCR 184 Central Oklahoma Intrastate (Remainder of) Unclassifiable/Attainment

Canadian County

Grady County

Kingfisher County

Lincoln County

Logan County

McClain County

Pottawatomie County

AQCR 185 North Central Oklahoma Intrastate Unclassifiable/Attainment

Garfield County

Grant County

Kay County

Noble County

Payne County

AQCR 186 Northeastern Oklahoma Intrastate Unclassifiable/Attainment

Craig County

Creek County

Delaware County

Mayes County

Muskogee County

Nowata County

Okmulgee County

Osage County

Ottawa County

Pawnee County

Rogers County

Tulsa County

Wagoner County

Washington County

AQCR 187 Northwestern Oklahoma Intrastate Unclassifiable/Attainment

Alfalfa County

Beaver County

Blaine County

Cimarron County

Custer County

Dewey County

Ellis County

Harper County

Major County

Roger Mills County

Texas County

Woods County

Woodward County

AQCR 188 Southeastern Oklahoma Intrastate Unclassifiable/Attainment

Atoka County

Bryan County

Carter County

Choctaw County

Coal County

Garvin County

Haskell County

Hughes County

Johnston County

Latimer County

Love County

Marshall County

McIntosh County

Murray County

Okfuskee County

Pittsburg County

Pontotoc County

Pushmataha County

Seminole County

AQCR 189 Southwestern Oklahoma Intrastate Unclassifiable/Attainment

Beckham County

Caddo County

Comanche County

Cotton County

Greer County

Harmon County

Jackson County

Jefferson County

Kiowa County

Stephens County

Tillman County

Washita 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 Oklahoma.

Oklahoma—1997 Annual PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date 1 Type Date Type

AQCR 017 Metropolitan Fort Smith Interstate:

Adair County Unclassifiable/Attainment

Cherokee County Unclassifiable/Attainment

Le Flore County Unclassifiable/Attainment

Sequoyah County Unclassifiable/Attainment

AQCR 022 Shreveport-Texarkana-Tyler Intrastate:

McCurtain County Unclassifiable/Attainment

AQCR 184 Central Oklahoma Intrastate (part):

Cleveland County Unclassifiable/Attainment

Oklahoma County Unclassifiable/Attainment

AQCR 184 Central Oklahoma Intrastate (remainder of):

Canadian County Unclassifiable/Attainment

Grady County Unclassifiable/Attainment

Kingfisher County Unclassifiable/Attainment

Lincoln County Unclassifiable/Attainment

Logan County Unclassifiable/Attainment

McClain County Unclassifiable/Attainment

Pottawatomie County Unclassifiable/Attainment

AQCR 185 North Central Oklahoma Intrastate:

Garfield County Unclassifiable/Attainment

Grant County Unclassifiable/Attainment

Kay County Unclassifiable/Attainment

Noble County Unclassifiable/Attainment

Payne County Unclassifiable/Attainment

AQCR 186 Northeastern Oklahoma Intrastate:

Craig County Unclassifiable/Attainment

Creek County Unclassifiable/Attainment

Delaware County Unclassifiable/Attainment

Mayes County Unclassifiable/Attainment

Muskogee County Unclassifiable/Attainment

Nowata County Unclassifiable/Attainment

Okmulgee County Unclassifiable/Attainment

Osage County Unclassifiable/Attainment

Ottawa County Unclassifiable/Attainment

Pawnee County Unclassifiable/Attainment

Rogers County Unclassifiable/Attainment

Tulsa County Unclassifiable/Attainment

Wagoner County Unclassifiable/Attainment

Washington County Unclassifiable/Attainment

AQCR 187 Northwestern Oklahoma Intrastate:

Alfalfa County Unclassifiable/Attainment

Beaver County Unclassifiable/Attainment

Blaine County Unclassifiable/Attainment

Cimarron County Unclassifiable/Attainment

Custer County Unclassifiable/Attainment

Dewey County Unclassifiable/Attainment

Ellis County Unclassifiable/Attainment

Harper County Unclassifiable/Attainment

Major County Unclassifiable/Attainment

Roger Mills County Unclassifiable/Attainment

Texas County Unclassifiable/Attainment

Woods County Unclassifiable/Attainment

Woodward County Unclassifiable/Attainment

AQCR 188 Southeastern Oklahoma Intrastate:

Atoka County Unclassifiable/Attainment

Bryan County Unclassifiable/Attainment

Carter County Unclassifiable/Attainment

Choctaw County Unclassifiable/Attainment

Coal County Unclassifiable/Attainment

Garvin County Unclassifiable/Attainment

Haskell County Unclassifiable/Attainment

Hughes County Unclassifiable/Attainment

Johnston County Unclassifiable/Attainment

Latimer County Unclassifiable/Attainment

Love County Unclassifiable/Attainment

McIntosh County Unclassifiable/Attainment

Marshall County Unclassifiable/Attainment

Murray County Unclassifiable/Attainment

Okfuskee County Unclassifiable/Attainment

Pittsburg County Unclassifiable/Attainment

Pontotoc County Unclassifiable/Attainment

Pushmataha County Unclassifiable/Attainment

Seminole County Unclassifiable/Attainment

AQCR 189 Southwestern Oklahoma Intrastate:

Beckham County Unclassifiable/Attainment

Caddo County Unclassifiable/Attainment

Comanche County Unclassifiable/Attainment

Cotton County Unclassifiable/Attainment

Greer County Unclassifiable/Attainment

Harmon County Unclassifiable/Attainment

Jackson County Unclassifiable/Attainment

Jefferson County Unclassifiable/Attainment

Kiowa County Unclassifiable/Attainment

Stephens County Unclassifiable/Attainment

Tillman County Unclassifiable/Attainment

Washita 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.

Oklahoma—2012 Annual PM2.5 NAAQS

[Primary]

Designated area 1 Designation Classification

Date 2 Type Date 2 Type

AQCR 017 Metropolitan Fort Smith Interstate:

Adair County Unclassifiable/Attainment

Cherokee County Unclassifiable/Attainment

Le Flore County Unclassifiable/Attainment

Sequoyah County Unclassifiable/Attainment

AQCR 022 Shreveport-Texarkana-Tyler Intrastate:

McCurtain County Unclassifiable/Attainment

AQCR 184 Central Oklahoma Intrastate:

Canadian County Unclassifiable/Attainment

Cleveland County Unclassifiable/Attainment

Grady County Unclassifiable/Attainment

Kingfisher County Unclassifiable/Attainment

Lincoln County Unclassifiable/Attainment

Logan County Unclassifiable/Attainment

McClain County Unclassifiable/Attainment

Oklahoma County Unclassifiable/Attainment

Pottawatomie County Unclassifiable/Attainment

AQCR 185 North Central Oklahoma Intrastate:

Garfield County Unclassifiable/Attainment

Grant County Unclassifiable/Attainment

Kay County Unclassifiable/Attainment

Noble County Unclassifiable/Attainment

Payne County Unclassifiable/Attainment

AQCR 186 Northeastern Oklahoma Intrastate:

Craig County Unclassifiable/Attainment

Creek County Unclassifiable/Attainment

Delaware County Unclassifiable/Attainment

Mayes County Unclassifiable/Attainment

Muskogee County Unclassifiable/Attainment

Nowata County Unclassifiable/Attainment

Okmulgee County Unclassifiable/Attainment

Osage County Unclassifiable/Attainment

Ottawa County Unclassifiable/Attainment

Pawnee County Unclassifiable/Attainment

Rogers County Unclassifiable/Attainment

Tulsa County Unclassifiable/Attainment

Wagoner County Unclassifiable/Attainment

Washington County Unclassifiable/Attainment

AQCR 187 Northwestern Oklahoma Intrastate:

Alfalfa County Unclassifiable/Attainment

Beaver County Unclassifiable/Attainment

Blaine County Unclassifiable/Attainment

Cimarron County Unclassifiable/Attainment

Custer County Unclassifiable/Attainment

Dewey County Unclassifiable/Attainment

Ellis County Unclassifiable/Attainment

Harper County Unclassifiable/Attainment

Major County Unclassifiable/Attainment

Roger Mills County Unclassifiable/Attainment

Texas County Unclassifiable/Attainment

Woods County Unclassifiable/Attainment

Woodward County Unclassifiable/Attainment

AQCR 188 Southeastern Oklahoma Intrastate:

Atoka County Unclassifiable/Attainment

Bryan County Unclassifiable/Attainment

Carter County Unclassifiable/Attainment

Choctaw County Unclassifiable/Attainment

Coal County Unclassifiable/Attainment

Garvin County Unclassifiable/Attainment

Haskell County Unclassifiable/Attainment

Hughes County Unclassifiable/Attainment

Johnston County Unclassifiable/Attainment

Latimer County Unclassifiable/Attainment

Love County Unclassifiable/Attainment

McIntosh County Unclassifiable/Attainment

Marshall County Unclassifiable/Attainment

Murray County Unclassifiable/Attainment

Okfuskee County Unclassifiable/Attainment

Pittsburg County Unclassifiable/Attainment

Pontotoc County Unclassifiable/Attainment

Pushmataha County Unclassifiable/Attainment

Seminole County Unclassifiable/Attainment

AQCR 189 Southwestern Oklahoma Intrastate:

Beckham County Unclassifiable/Attainment

Caddo County Unclassifiable/Attainment

Comanche County Unclassifiable/Attainment

Cotton County Unclassifiable/Attainment

Greer County Unclassifiable/Attainment

Harmon County Unclassifiable/Attainment

Jackson County Unclassifiable/Attainment

Jefferson County Unclassifiable/Attainment

Kiowa County Unclassifiable/Attainment

Stephens County Unclassifiable/Attainment

Tillman County Unclassifiable/Attainment

Washita 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.

Oklahoma—1997 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date 1 Type Date Type

AQCR 017 Metropolitan Fort Smith Interstate:

Adair County Unclassifiable/Attainment.

Cherokee County Unclassifiable/Attainment.

Le Flore County Unclassifiable/Attainment.

Sequoyah County Unclassifiable/Attainment.

AQCR 022 Shreveport-Texarkana-Tyler Intrastate:

McCurtain County Unclassifiable/Attainment.

AQCR 184 Central Oklahoma Intrastate:

Canadian County Unclassifiable/Attainment.

Cleveland County Unclassifiable/Attainment.

Grady County Unclassifiable/Attainment.

Kingfisher County Unclassifiable/Attainment.

Lincoln County Unclassifiable/Attainment.

Logan County Unclassifiable/Attainment.

McClain County Unclassifiable/Attainment.

Oklahoma County Unclassifiable/Attainment.

Pottawatomie County Unclassifiable/Attainment.

AQCR 185 North Central Oklahoma Intrastate:

Garfield County Unclassifiable/Attainment.

Grant County Unclassifiable/Attainment.

Kay County Unclassifiable/Attainment.

Noble County Unclassifiable/Attainment.

Payne County Unclassifiable/Attainment.

AQCR 186 Northeastern Oklahoma Intrastate:

Craig County Unclassifiable/Attainment.

Creek County Unclassifiable/Attainment.

Delaware County Unclassifiable/Attainment.

Mayes County Unclassifiable/Attainment.

Muskogee County Unclassifiable/Attainment.

Nowata County Unclassifiable/Attainment.

Okmulgee County Unclassifiable/Attainment.

Osage County Unclassifiable/Attainment.

Ottawa County Unclassifiable/Attainment.

Pawnee County Unclassifiable/Attainment.

Rogers County Unclassifiable/Attainment.

Tulsa County Unclassifiable/Attainment.

Wagoner County Unclassifiable/Attainment.

Washington County Unclassifiable/Attainment.

AQCR 187 Northwestern Oklahoma Intrastate:

Alfalfa County Unclassifiable/Attainment.

Beaver County Unclassifiable/Attainment.

Blaine County Unclassifiable/Attainment.

Cimarron County Unclassifiable/Attainment.

Custer County Unclassifiable/Attainment.

Dewey County Unclassifiable/Attainment.

Ellis County Unclassifiable/Attainment.

Harper County Unclassifiable/Attainment.

Major County Unclassifiable/Attainment.

Roger Mills County Unclassifiable/Attainment.

Texas County Unclassifiable/Attainment.

Woods County Unclassifiable/Attainment.

Woodward County Unclassifiable/Attainment.

AQCR 188 Southeastern Oklahoma Intrastate:

Atoka County Unclassifiable/Attainment.

Bryan County Unclassifiable/Attainment.

Carter County Unclassifiable/Attainment.

Choctaw County Unclassifiable/Attainment.

Coal County Unclassifiable/Attainment.

Garvin County Unclassifiable/Attainment.

Haskell County Unclassifiable/Attainment.

Hughes County Unclassifiable/Attainment.

Johnston County Unclassifiable/Attainment.

Latimer County Unclassifiable/Attainment.

Love County Unclassifiable/Attainment.

McIntosh County Unclassifiable/Attainment.

Marshall County Unclassifiable/Attainment.

Murray County Unclassifiable/Attainment.

Okfuskee County Unclassifiable/Attainment.

Pittsburg County Unclassifiable/Attainment.

Pontotoc County Unclassifiable/Attainment.

Pushmataha County Unclassifiable/Attainment.

Seminole County Unclassifiable/Attainment.

AQCR 189 Southwestern Oklahoma Intrastate:

Beckham County Unclassifiable/Attainment.

Caddo County Unclassifiable/Attainment.

Comanche County Unclassifiable/Attainment.

Cotton County Unclassifiable/Attainment.

Greer County Unclassifiable/Attainment.

Harmon County Unclassifiable/Attainment.

Jackson County Unclassifiable/Attainment.

Jefferson County Unclassifiable/Attainment.

Kiowa County Unclassifiable/Attainment.

Stephens County Unclassifiable/Attainment.

Tillman County Unclassifiable/Attainment.

Washita 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.

Oklahoma—2006 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date 1 Type Date Type

AQCR 017 Metropolitan Fort Smith Interstate:

Adair County Unclassifiable/Attainment.

Cherokee County Unclassifiable/Attainment.

Le Flore County Unclassifiable/Attainment.

Sequoyah County Unclassifiable/Attainment.

AQCR 022 Shreveport-Texarkana-Tyler Intrastate:

McCurtain County Unclassifiable/Attainment.

AQCR 184 Central Oklahoma Intrastate:

Canadian County Unclassifiable/Attainment.

Cleveland County Unclassifiable/Attainment.

Grady County Unclassifiable/Attainment.

Kingfisher County Unclassifiable/Attainment.

Lincoln County Unclassifiable/Attainment.

Logan County Unclassifiable/Attainment.

McClain County Unclassifiable/Attainment.

Oklahoma County Unclassifiable/Attainment.

Pottawatomie County Unclassifiable/Attainment.

AQCR 185 North Central Oklahoma Intrastate:

Garfield County Unclassifiable/Attainment.

Grant County Unclassifiable/Attainment.

Kay County Unclassifiable/Attainment.

Noble County Unclassifiable/Attainment.

Payne County Unclassifiable/Attainment.

AQCR 186 Northeastern Oklahoma Intrastate:

Craig County Unclassifiable/Attainment.

Creek County Unclassifiable/Attainment.

Delaware County Unclassifiable/Attainment.

Mayes County Unclassifiable/Attainment.

Muskogee County Unclassifiable/Attainment.

Nowata County Unclassifiable/Attainment.

Okmulgee County Unclassifiable/Attainment.

Osage County Unclassifiable/Attainment.

Ottawa County Unclassifiable/Attainment.

Pawnee County Unclassifiable/Attainment.

Rogers County Unclassifiable/Attainment.

Tulsa County Unclassifiable/Attainment.

Wagoner County Unclassifiable/Attainment.

Washington County Unclassifiable/Attainment.

AQCR 187 Northwestern Oklahoma Intrastate:

Alfalfa County Unclassifiable/Attainment.

Beaver County Unclassifiable/Attainment.

Blaine County Unclassifiable/Attainment.

Cimarron County Unclassifiable/Attainment.

Custer County Unclassifiable/Attainment.

Dewey County Unclassifiable/Attainment.

Ellis County Unclassifiable/Attainment.

Harper County Unclassifiable/Attainment.

Major County Unclassifiable/Attainment.

Roger Mills County Unclassifiable/Attainment.

Texas County Unclassifiable/Attainment.

Woods County Unclassifiable/Attainment.

Woodward County Unclassifiable/Attainment.

AQCR 188 Southeastern Oklahoma Intrastate:

Atoka County Unclassifiable/Attainment.

Bryan County Unclassifiable/Attainment.

Carter County Unclassifiable/Attainment.

Choctaw County Unclassifiable/Attainment.

Coal County Unclassifiable/Attainment.

Garvin County Unclassifiable/Attainment.

Haskell County Unclassifiable/Attainment.

Hughes County Unclassifiable/Attainment.

Johnston County Unclassifiable/Attainment.

Latimer County Unclassifiable/Attainment.

Love County Unclassifiable/Attainment.

McIntosh County Unclassifiable/Attainment.

Marshall County Unclassifiable/Attainment.

Murray County Unclassifiable/Attainment.

Okfuskee County Unclassifiable/Attainment.

Pittsburg County Unclassifiable/Attainment.

Pontotoc County Unclassifiable/Attainment.

Pushmataha County Unclassifiable/Attainment.

Seminole County Unclassifiable/Attainment.

AQCR 189 Southwestern Oklahoma Intrastate:

Beckham County Unclassifiable/Attainment.

Caddo County Unclassifiable/Attainment.

Comanche County Unclassifiable/Attainment.

Cotton County Unclassifiable/Attainment.

Greer County Unclassifiable/Attainment.

Harmon County Unclassifiable/Attainment.

Jackson County Unclassifiable/Attainment.

Jefferson County Unclassifiable/Attainment.

Kiowa County Unclassifiable/Attainment.

Stephens County Unclassifiable/Attainment.

Tillman County Unclassifiable/Attainment.

Washita 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.

Oklahoma—NO2 (1971 Annual Standard)

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

AQCR 017 X

AQCR 184 X

AQCR 185 X

AQCR 186 X

AQCR 187 X

AQCR 188 X

AQCR 189 X

Oklahoma—NO2 (2010 1-Hour Standard)

Designated area Designation a

Date 1 Type

Adair County Unclassifiable/Attainment.

Alfalfa County Unclassifiable/Attainment.

Atoka County Unclassifiable/Attainment.

Beaver County Unclassifiable/Attainment.

Beckham County Unclassifiable/Attainment.

Blaine County Unclassifiable/Attainment.

Bryan County Unclassifiable/Attainment.

Caddo County Unclassifiable/Attainment.

Canadian County Unclassifiable/Attainment.

Carter County Unclassifiable/Attainment.

Cherokee County Unclassifiable/Attainment.

Choctaw County Unclassifiable/Attainment.

Cimarron County Unclassifiable/Attainment.

Cleveland County Unclassifiable/Attainment.

Coal County Unclassifiable/Attainment.

Comanche County Unclassifiable/Attainment.

Cotton County Unclassifiable/Attainment.

Craig County Unclassifiable/Attainment.

Creek County Unclassifiable/Attainment.

Custer County Unclassifiable/Attainment.

Delaware County Unclassifiable/Attainment.

Dewey County Unclassifiable/Attainment.

Ellis County Unclassifiable/Attainment.

Garfield County Unclassifiable/Attainment.

Garvin County Unclassifiable/Attainment.

Grady County Unclassifiable/Attainment.

Grant County Unclassifiable/Attainment.

Greer County Unclassifiable/Attainment.

Harmon County Unclassifiable/Attainment.

Harper County Unclassifiable/Attainment.

Haskell County Unclassifiable/Attainment.

Hughes County Unclassifiable/Attainment.

Jackson County Unclassifiable/Attainment.

Jefferson County Unclassifiable/Attainment.

Johnston County Unclassifiable/Attainment.

Kay County Unclassifiable/Attainment.

Kingfisher County Unclassifiable/Attainment.

Kiowa County Unclassifiable/Attainment.

Latimer County Unclassifiable/Attainment.

Le Flore County Unclassifiable/Attainment.

Lincoln County Unclassifiable/Attainment.

Logan County Unclassifiable/Attainment.

Love County Unclassifiable/Attainment.

Major County Unclassifiable/Attainment.

Marshall County Unclassifiable/Attainment.

Mayes County Unclassifiable/Attainment.

McClain County Unclassifiable/Attainment.

McCurtain County Unclassifiable/Attainment.

McIntosh County Unclassifiable/Attainment.

Murray County Unclassifiable/Attainment.

Muskogee County Unclassifiable/Attainment.

Noble County Unclassifiable/Attainment.

Nowata County Unclassifiable/Attainment.

Okfuskee County Unclassifiable/Attainment.

Oklahoma County Unclassifiable/Attainment.

Okmulgee County Unclassifiable/Attainment.

Osage County Unclassifiable/Attainment.

Ottawa County Unclassifiable/Attainment.

Pawnee County Unclassifiable/Attainment.

Payne County Unclassifiable/Attainment.

Pittsburg County Unclassifiable/Attainment.

Pontotoc County Unclassifiable/Attainment.

Pottawatomie County Unclassifiable/Attainment.

Pushmataha County Unclassifiable/Attainment.

Roger Mills County Unclassifiable/Attainment.

Rogers County Unclassifiable/Attainment.

Seminole County Unclassifiable/Attainment.

Sequoyah County Unclassifiable/Attainment.

Stephens County Unclassifiable/Attainment.

Texas County Unclassifiable/Attainment.

Tillman County Unclassifiable/Attainment.

Tulsa County Unclassifiable/Attainment.

Wagoner County Unclassifiable/Attainment.

Washington County Unclassifiable/Attainment.

Washita County Unclassifiable/Attainment.

Woods County Unclassifiable/Attainment.

Woodward County 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.

Oklahoma—1997 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation a Category/classification

Date 1 Type Date 1 Type

AQCR 017 Metropolitan Fort Smith Interstate Unclassifiable/Attainment

Adair County

Cherokee County

Le Flore County

Sequoyah County

AQCR 022 Shreveport-Texarkana-Tyler Intrastate: McCurtain County Unclassifiable/Attainment

AQCR 184 Central Oklahoma Intrastate (part):

Cleveland County Unclassifiable/Attainment

Oklahoma County Unclassifiable/Attainment

AQCR 184 Central Oklahoma Intrastate (remainder of) Unclassifiable/Attainment

Canadian County

Grady County

Kingfisher County

Lincoln County

Logan County

McClain County

Pottawatomie County

AQCR 185 North Central Oklahoma Intrastate Unclassifiable/Attainment

Garfield County

Grant County

Kay County

Noble County

Payne County

AQCR 186 Northeastern Oklahoma Intrastate Unclassifiable/Attainment

Craig County

Creek County

Delaware County

Mayes County

Muskogee County

Nowata County

Okmulgee County

Osage County

Ottawa County

Pawnee County

Rogers County

Tulsa County

Wagoner County

Washington County

AQCR 187 Northwestern Oklahoma Intrastate Unclassifiable/Attainment

Alfalfa County

Beaver County

Blaine County

Cimarron County

Custer County

Dewey County

Ellis County

Harper County

Major County

Roger Mills County

Texas County

Woods County

Woodward County

AQCR 188 Southeastern Oklahoma Intrastate Unclassifiable/Attainment

Atoka County

Bryan County

Carter County

Choctaw County

Coal County

Garvin County

Haskell County

Hughes County

Johnston County

Latimer County

Love County

Marshall County

McIntosh County

Murray County

Okfuskee County

Pittsburg County

Pontotoc County

Pushmataha County

Seminole County

AQCR 189 Southwestern Oklahoma Intrastate Unclassifiable/Attainment

Beckham County

Caddo County

Comanche County

Cotton County

Greer County

Harmon County

Jackson County

Jefferson County

Kiowa County

Stephens County

Tillman County

Washita 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.

Oklahoma—2008 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area 1 Designation Classification

Date 2 Type Date 2 Type

Adair County Unclassifiable/Attainment

Alfalfa County Unclassifiable/Attainment

Atoka County Unclassifiable/Attainment

Beaver County Unclassifiable/Attainment

Beckham County Unclassifiable/Attainment

Blaine County Unclassifiable/Attainment

Bryan County Unclassifiable/Attainment

Caddo County Unclassifiable/Attainment

Canadian County Unclassifiable/Attainment

Carter County Unclassifiable/Attainment

Cherokee County Unclassifiable/Attainment

Choctaw County Unclassifiable/Attainment

Cimarron County Unclassifiable/Attainment

Cleveland County Unclassifiable/Attainment

Coal County Unclassifiable/Attainment

Comanche County Unclassifiable/Attainment

Cotton County Unclassifiable/Attainment

Craig County Unclassifiable/Attainment

Creek County Unclassifiable/Attainment

Custer County Unclassifiable/Attainment

Delaware County Unclassifiable/Attainment

Dewey County Unclassifiable/Attainment

Ellis County Unclassifiable/Attainment

Garfield County Unclassifiable/Attainment

Garvin County Unclassifiable/Attainment

Grady County Unclassifiable/Attainment

Grant County Unclassifiable/Attainment

Greer County Unclassifiable/Attainment

Harmon County Unclassifiable/Attainment

Harper County Unclassifiable/Attainment

Haskell County Unclassifiable/Attainment

Hughes County Unclassifiable/Attainment

Jackson County Unclassifiable/Attainment

Jefferson County Unclassifiable/Attainment

Johnston County Unclassifiable/Attainment

Kay County Unclassifiable/Attainment

Kingfisher County Unclassifiable/Attainment

Kiowa County Unclassifiable/Attainment

Latimer County Unclassifiable/Attainment

Le Flore County Unclassifiable/Attainment

Lincoln County Unclassifiable/Attainment

Logan County Unclassifiable/Attainment

Love County Unclassifiable/Attainment

Major County Unclassifiable/Attainment

Marshall County Unclassifiable/Attainment

Mayes County Unclassifiable/Attainment

McClain County Unclassifiable/Attainment

McCurtain County Unclassifiable/Attainment

McIntosh County Unclassifiable/Attainment

Murray County Unclassifiable/Attainment

Muskogee County Unclassifiable/Attainment

Noble County Unclassifiable/Attainment

Nowata County Unclassifiable/Attainment

Okfuskee County Unclassifiable/Attainment

Oklahoma County Unclassifiable/Attainment

Okmulgee County Unclassifiable/Attainment

Osage County Unclassifiable/Attainment

Ottawa County Unclassifiable/Attainment

Pawnee County Unclassifiable/Attainment

Payne County Unclassifiable/Attainment

Pittsburg County Unclassifiable/Attainment

Pontotoc County Unclassifiable/Attainment

Pottawatomie County Unclassifiable/Attainment

Pushmataha County Unclassifiable/Attainment

Roger Mills County Unclassifiable/Attainment

Rogers County Unclassifiable/Attainment

Seminole County Unclassifiable/Attainment

Sequoyah County Unclassifiable/Attainment

Stephens County Unclassifiable/Attainment

Texas County Unclassifiable/Attainment

Tillman County Unclassifiable/Attainment

Tulsa County Unclassifiable/Attainment

Wagoner County Unclassifiable/Attainment

Washington County Unclassifiable/Attainment

Washita County Unclassifiable/Attainment

Woods County Unclassifiable/Attainment

Woodward County Unclassifiable/Attainment

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

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

Oklahoma—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area 1 Designation Classification

Date 2 Type Date 2 Type

Adair County 1/16/2018 Attainment/Unclassifiable

Alfalfa County 1/16/2018 Attainment/Unclassifiable

Atoka County 1/16/2018 Attainment/Unclassifiable

Beaver County 1/16/2018 Attainment/Unclassifiable

Beckham County 1/16/2018 Attainment/Unclassifiable

Blaine County 1/16/2018 Attainment/Unclassifiable

Bryan County Attainment/Unclassifiable

Caddo County 1/16/2018 Attainment/Unclassifiable

Canadian County 1/16/2018 Attainment/Unclassifiable

Carter County 1/16/2018 Attainment/Unclassifiable

Cherokee County 1/16/2018 Attainment/Unclassifiable

Choctaw County 1/16/2018 Attainment/Unclassifiable

Cimarron County 1/16/2018 Attainment/Unclassifiable

Cleveland County 1/16/2018 Attainment/Unclassifiable

Coal County 1/16/2018 Attainment/Unclassifiable

Comanche County 1/16/2018 Attainment/Unclassifiable

Cotton County 1/16/2018 Attainment/Unclassifiable

Craig County 1/16/2018 Attainment/Unclassifiable

Creek County 1/16/2018 Attainment/Unclassifiable

Custer County 1/16/2018 Attainment/Unclassifiable

Delaware County 1/16/2018 Attainment/Unclassifiable

Dewey County 1/16/2018 Attainment/Unclassifiable

Ellis County 1/16/2018 Attainment/Unclassifiable

Garfield County 1/16/2018 Attainment/Unclassifiable

Garvin County 1/16/2018 Attainment/Unclassifiable

Grady County 1/16/2018 Attainment/Unclassifiable

Grant County 1/16/2018 Attainment/Unclassifiable

Greer County 1/16/2018 Attainment/Unclassifiable

Harmon County 1/16/2018 Attainment/Unclassifiable

Harper County 1/16/2018 Attainment/Unclassifiable

Haskell County 1/16/2018 Attainment/Unclassifiable

Hughes County 1/16/2018 Attainment/Unclassifiable

Jackson County 1/16/2018 Attainment/Unclassifiable

Jefferson County 1/16/2018 Attainment/Unclassifiable

Johnston County 1/16/2018 Attainment/Unclassifiable

Kay County 1/16/2018 Attainment/Unclassifiable

Kingfisher County 1/16/2018 Attainment/Unclassifiable

Kiowa County 1/16/2018 Attainment/Unclassifiable

Latimer County 1/16/2018 Attainment/Unclassifiable

Le Flore County 1/16/2018 Attainment/Unclassifiable

Lincoln County 1/16/2018 Attainment/Unclassifiable

Logan County 1/16/2018 Attainment/Unclassifiable

Love County 1/16/2018 Attainment/Unclassifiable

McClain County 1/16/2018 Attainment/Unclassifiable

McCurtain County 1/16/2018 Attainment/Unclassifiable

McIntosh County 1/16/2018 Attainment/Unclassifiable

Major County 1/16/2018 Attainment/Unclassifiable

Marshall County 1/16/2018 Attainment/Unclassifiable

Mayes County 1/16/2018 Attainment/Unclassifiable

Murray County 1/16/2018 Attainment/Unclassifiable

Muskogee County 1/16/2018 Attainment/Unclassifiable

Noble County 1/16/2018 Attainment/Unclassifiable

Nowata County 1/16/2018 Attainment/Unclassifiable

Okfuskee County 1/16/2018 Attainment/Unclassifiable

Oklahoma County 1/16/2018 Attainment/Unclassifiable

Okmulgee County 1/16/2018 Attainment/Unclassifiable

Osage County 1/16/2018 Attainment/Unclassifiable

Ottawa County 1/16/2018 Attainment/Unclassifiable

Pawnee County 1/16/2018 Attainment/Unclassifiable

Payne County 1/16/2018 Attainment/Unclassifiable

Pittsburg County 1/16/2018 Attainment/Unclassifiable

Pontotoc County 1/16/2018 Attainment/Unclassifiable

Pottawatomie County 1/16/2018 Attainment/Unclassifiable

Pushmataha County 1/16/2018 Attainment/Unclassifiable

Roger Mills County 1/16/2018 Attainment/Unclassifiable

Rogers County 1/16/2018 Attainment/Unclassifiable

Seminole County 1/16/2018 Attainment/Unclassifiable

Sequoyah County 1/16/2018 Attainment/Unclassifiable

Stephens County 1/16/2018 Attainment/Unclassifiable

Texas County 1/16/2018 Attainment/Unclassifiable

Tillman County 1/16/2018 Attainment/Unclassifiable

Tulsa County 1/16/2018 Attainment/Unclassifiable

Wagoner County 1/16/2018 Attainment/Unclassifiable

Washington County 1/16/2018 Attainment/Unclassifiable

Washita County 1/16/2018 Attainment/Unclassifiable

Woods County 1/16/2018 Attainment/Unclassifiable

Woodward County 1/16/2018 Attainment/Unclassifiable

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 August 3, 2018, unless otherwise noted.

Oklahoma—2008 Lead NAAQS

Designated area Designation for the 2008 NAAQSa

Date1 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.