Oklahoma—TSP

Open Table
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]

Open Table
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]

Open Table
Designated area1 3 Designation
Date2 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 9/12/16 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.
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.
Murray County Attainment/Unclassifiable.
Noble County 9/12/16 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.

1Includes 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.

2This date is April 9, 2018, unless otherwise noted.

3Garfield and Mayes Counties will be designated by December 31, 2020.

Oklahoma—Carbon Monoxide

Open Table
Designated Area Designation Classification
Date1 Type Date1 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

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

Oklahoma—Ozone (1-Hour Standard)2

Open Table
Designated area Designation Classification
Date1 Type Date1 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

1This date is October 18, 2000, unless otherwise noted.

2The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Oklahoma.

Oklahoma—1997 Annual PM2.5 NAAQS

[Primary and Secondary]

Open Table
Designated area Designationa Classification
Date1 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

aIncludes Indian Country located in each county or area, except as otherwise specified.

1This date is 90 days after January 5, 2005, unless otherwise noted.

Oklahoma—2012 Annual PM2.5 NAAQS

[Primary]

Open Table
Designated area1 Designation Classification
Date2 Type Date2 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

1Includes areas of Indian country located in each county or area, except as otherwise specified.

2This date is April 15, 2015, unless otherwise noted.

Oklahoma—1997 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Open Table
Designated area Designationa Classification
Date1 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.

aIncludes Indian Country located in each county or area, except as otherwise specified.

1This date is 90 days after January 5, 2005, unless otherwise noted.

Oklahoma—2006 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Open Table
Designated area Designationa Classification
Date1 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.

aIncludes Indian Country located in each county or area, except as otherwise specified.

1This date is 30 days after November 13, 2009, unless otherwise noted.

Oklahoma—NO2 (1971 Annual Standard)

Open Table
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)

Open Table
Designated area Designationa
Date1 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.

aIncludes Indian Country located in each county or area, except as otherwise specified.

1This date is 90 days after October 31, 2011, unless otherwise noted.

Oklahoma—1997 8-Hour Ozone NAAQS

[Primary and Secondary]

Open Table
Designated area Designationa Category/classification
Date1 Type Date1 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

aIncludes Indian Country located in each county or area, except as otherwise specified.

1This date is June 15, 2004, unless otherwise noted.

Oklahoma—2008 8-Hour Ozone NAAQS

[Primary and Secondary]

Open Table
Designated area1 Designation Classification
Date2 Type Date2 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

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

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

Oklahoma—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Open Table
Designated area1 Designation Classification
Date2 Type Date2 Type
Adair County 1/16/18 Attainment/Unclassifiable
Alfalfa County 1/16/18 Attainment/Unclassifiable
Atoka County 1/16/18 Attainment/Unclassifiable
Beaver County 1/16/18 Attainment/Unclassifiable
Beckham County 1/16/18 Attainment/Unclassifiable
Blaine County 1/16/18 Attainment/Unclassifiable
Bryan County Attainment/Unclassifiable
Caddo County 1/16/18 Attainment/Unclassifiable
Canadian County 1/16/18 Attainment/Unclassifiable
Carter County 1/16/18 Attainment/Unclassifiable
Cherokee County 1/16/18 Attainment/Unclassifiable
Choctaw County 1/16/18 Attainment/Unclassifiable
Cimarron County 1/16/18 Attainment/Unclassifiable
Cleveland County 1/16/18 Attainment/Unclassifiable
Coal County 1/16/18 Attainment/Unclassifiable
Comanche County 1/16/18 Attainment/Unclassifiable
Cotton County 1/16/18 Attainment/Unclassifiable
Craig County 1/16/18 Attainment/Unclassifiable
Creek County 1/16/18 Attainment/Unclassifiable
Custer County 1/16/18 Attainment/Unclassifiable
Delaware County 1/16/18 Attainment/Unclassifiable
Dewey County 1/16/18 Attainment/Unclassifiable
Ellis County 1/16/18 Attainment/Unclassifiable
Garfield County 1/16/18 Attainment/Unclassifiable
Garvin County 1/16/18 Attainment/Unclassifiable
Grady County 1/16/18 Attainment/Unclassifiable
Grant County 1/16/18 Attainment/Unclassifiable
Greer County 1/16/18 Attainment/Unclassifiable
Harmon County 1/16/18 Attainment/Unclassifiable
Harper County 1/16/18 Attainment/Unclassifiable
Haskell County 1/16/18 Attainment/Unclassifiable
Hughes County 1/16/18 Attainment/Unclassifiable
Jackson County 1/16/18 Attainment/Unclassifiable
Jefferson County 1/16/18 Attainment/Unclassifiable
Johnston County 1/16/18 Attainment/Unclassifiable
Kay County 1/16/18 Attainment/Unclassifiable
Kingfisher County 1/16/18 Attainment/Unclassifiable
Kiowa County 1/16/18 Attainment/Unclassifiable
Latimer County 1/16/18 Attainment/Unclassifiable
Le Flore County 1/16/18 Attainment/Unclassifiable
Lincoln County 1/16/18 Attainment/Unclassifiable
Logan County 1/16/18 Attainment/Unclassifiable
Love County 1/16/18 Attainment/Unclassifiable
McClain County 1/16/18 Attainment/Unclassifiable
McCurtain County 1/16/18 Attainment/Unclassifiable
McIntosh County 1/16/18 Attainment/Unclassifiable
Major County 1/16/18 Attainment/Unclassifiable
Marshall County 1/16/18 Attainment/Unclassifiable
Mayes County 1/16/18 Attainment/Unclassifiable
Murray County 1/16/18 Attainment/Unclassifiable
Muskogee County 1/16/18 Attainment/Unclassifiable
Noble County 1/16/18 Attainment/Unclassifiable
Nowata County 1/16/18 Attainment/Unclassifiable
Okfuskee County 1/16/18 Attainment/Unclassifiable
Oklahoma County 1/16/18 Attainment/Unclassifiable
Okmulgee County 1/16/18 Attainment/Unclassifiable
Osage County 1/16/18 Attainment/Unclassifiable
Ottawa County 1/16/18 Attainment/Unclassifiable
Pawnee County 1/16/18 Attainment/Unclassifiable
Payne County 1/16/18 Attainment/Unclassifiable
Pittsburg County 1/16/18 Attainment/Unclassifiable
Pontotoc County 1/16/18 Attainment/Unclassifiable
Pottawatomie County 1/16/18 Attainment/Unclassifiable
Pushmataha County 1/16/18 Attainment/Unclassifiable
Roger Mills County 1/16/18 Attainment/Unclassifiable
Rogers County 1/16/18 Attainment/Unclassifiable
Seminole County 1/16/18 Attainment/Unclassifiable
Sequoyah County 1/16/18 Attainment/Unclassifiable
Stephens County 1/16/18 Attainment/Unclassifiable
Texas County 1/16/18 Attainment/Unclassifiable
Tillman County 1/16/18 Attainment/Unclassifiable
Tulsa County 1/16/18 Attainment/Unclassifiable
Wagoner County 1/16/18 Attainment/Unclassifiable
Washington County 1/16/18 Attainment/Unclassifiable
Washita County 1/16/18 Attainment/Unclassifiable
Woods County 1/16/18 Attainment/Unclassifiable
Woodward County 1/16/18 Attainment/Unclassifiable

1Includes 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.

2This date is August 3, 2018, unless otherwise noted.

Oklahoma—2008 Lead NAAQS

Open Table
Designated area Designation for the 2008 NAAQSa
Date1 Type
Whole State Unclassifiable/Attainment.

aIncludes Indian Country located in each county or area, except as otherwise specified.

1December 31, 2011 unless otherwise noted.

[43 FR 8964, Mar. 3, 1978]


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