{"data":{"id":"us/40-cfr-81.337","jurisdiction":"us","citation":"40 CFR 81.337","heading":"Oklahoma.","body":"Oklahoma—TSP\nDesignated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards\nAQCR 017 X\nAQCR 022 X\nAQCR 184 X\nAQCR 185 X\nAQCR 186:\nTulsa County X\nPortions of Muskogee County X\nPortions of Mayes County X\nRemainder of AQCR X\nAQCR 187 X\nAQCR 188 X\nAQCR 189:\nPortion of Comanche County X\nRemainder of AQCR X\nOklahoma—1971 Sulfur Dioxide NAAQS\n[Primary and Secondary]\nDesignated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards\nAQCR 017 X\nAQCR 184 X\nAQCR 185 X\nAQCR 186 X\nAQCR 187 X\nAQCR 188 X\nAQCR 189 X\nOklahoma—2010 Sulfur Dioxide NAAQS\n[Primary]\nDesignated area 1 Designation\nDate 2 Type\nAdair County Attainment/Unclassifiable.\nAlfalfa County Attainment/Unclassifiable.\nAtoka County Attainment/Unclassifiable.\nBeaver County Attainment/Unclassifiable.\nBeckham County Attainment/Unclassifiable.\nBlaine County Attainment/Unclassifiable.\nBryan County Attainment/Unclassifiable.\nCaddo County Attainment/Unclassifiable.\nCanadian County Attainment/Unclassifiable.\nCarter County Attainment/Unclassifiable.\nCherokee County Attainment/Unclassifiable.\nChoctaw County 9/12/2016 Attainment/Unclassifiable.\nCimarron County Attainment/Unclassifiable.\nCleveland County Attainment/Unclassifiable.\nCoal County Attainment/Unclassifiable.\nComanche County Attainment/Unclassifiable.\nCotton County Attainment/Unclassifiable.\nCraig County Attainment/Unclassifiable.\nCreek County Attainment/Unclassifiable.\nCuster County Attainment/Unclassifiable.\nDelaware County Attainment/Unclassifiable.\nDewey County Attainment/Unclassifiable.\nEllis County Attainment/Unclassifiable.\nGarfield County 4/30/2021 Attainment/Unclassifiable.\nGarvin County Attainment/Unclassifiable.\nGrady County Attainment/Unclassifiable.\nGrant County Attainment/Unclassifiable.\nGreer County Attainment/Unclassifiable.\nHarmon County Attainment/Unclassifiable.\nHarper County Attainment/Unclassifiable.\nHaskell County Attainment/Unclassifiable.\nHughes County Attainment/Unclassifiable.\nJackson County Attainment/Unclassifiable.\nJefferson County Attainment/Unclassifiable.\nJohnston County Attainment/Unclassifiable.\nKay County Attainment/Unclassifiable.\nKingfisher County Attainment/Unclassifiable.\nKiowa County Attainment/Unclassifiable.\nLatimer County Attainment/Unclassifiable.\nLe Flore County Attainment/Unclassifiable.\nLincoln County Attainment/Unclassifiable.\nLogan County Attainment/Unclassifiable.\nLove County Attainment/Unclassifiable.\nMcClain County Attainment/Unclassifiable.\nMcCurtain County Attainment/Unclassifiable.\nMcIntosh County Attainment/Unclassifiable.\nMajor County Attainment/Unclassifiable.\nMarshall County Attainment/Unclassifiable.\nMayes County 4/30/2021 Attainment/Unclassifiable.\nMurray County Attainment/Unclassifiable.\nMuskogee County 4/30/2021 Attainment/Unclassifiable.\nNoble County 9/12/2016 Attainment/Unclassifiable.\nNowata County Attainment/Unclassifiable.\nOkfuskee County Attainment/Unclassifiable.\nOklahoma County Attainment/Unclassifiable.\nOkmulgee County Attainment/Unclassifiable.\nOsage County Attainment/Unclassifiable.\nOttawa County Attainment/Unclassifiable.\nPawnee County Attainment/Unclassifiable.\nPayne County Attainment/Unclassifiable.\nPittsburg County Attainment/Unclassifiable.\nPontotoc County Attainment/Unclassifiable.\nPottawatomie County Attainment/Unclassifiable.\nPushmataha County Attainment/Unclassifiable.\nRoger Mills County Attainment/Unclassifiable.\nRogers County Attainment/Unclassifiable.\nSeminole County Attainment/Unclassifiable.\nSequoyah County Attainment/Unclassifiable.\nStephens County Attainment/Unclassifiable.\nTexas County Attainment/Unclassifiable.\nTillman County Attainment/Unclassifiable.\nTulsa County Attainment/Unclassifiable.\nWagoner County Attainment/Unclassifiable.\nWashington County Attainment/Unclassifiable.\nWashita County Attainment/Unclassifiable.\nWoods County Attainment/Unclassifiable.\nWoodward County Attainment/Unclassifiable.\n1 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.\n2 This date is April 9, 2018, unless otherwise noted.\nOklahoma—Carbon Monoxide\nDesignated Area Designation Classification\nDate 1 Type Date 1 Type\nAQCR 017 Metropolitan Fort Smith Interstate Unclassifiable/Attainment\nAdair County\nCherokee County\nLe Flore County\nSequoyah County\nAQCR 022 Shreveport-Texarkana-Tyler Interstate Unclassifiable/Attainment\nMcCurtain County\nAQCR 184 Central Oklahoma Intrastate Unclassifiable/Attainment\nCanadian County\nCleveland County\nGrady County\nKingfisher County\nLincoln County\nLogan County\nMcClain County\nOklahoma County\nPottawatomie County\nAQCR 185 North Central Oklahoma Intrastate Unclassifiable/Attainment\nGarfield County\nGrant County\nKay County\nNoble County\nPayne County\nAQCR 186 Northeastern Oklahoma Intrastate Unclassifiable/Attainment\nCraig County\nCreek County\nDelaware County\nMayes County\nMuskogee County\nNowata County\nOkmulgee County\nOsage County\nOttawa County\nPawnee County\nRogers County\nTulsa County\nWagoner County\nWashington County\nAQCR 187 Northwestern Oklahoma Intrastate Unclassifiable/Attainment\nAlfalfa County\nBeaver County\nBlaine County\nCimarron County\nCuster County\nDewey County\nEllis County\nHarper County\nMajor County\nRoger Mills County\nTexas County\nWoods County\nWoodward County\nAQCR 188 Southeastern Oklahoma Intrastate Unclassifiable/Attainment\nAtoka County\nBryan County\nCarter County\nChoctaw County\nCoal County\nGarvin County\nHaskell County\nHughes County\nJohnston County\nLatimer County\nLove County\nMarshall County\nMcIntosh County\nMurray County\nOkfuskee County\nPittsburg County\nPontotoc County\nPushmataha County\nSeminole County\nAQCR 189 Southwestern Oklahoma Intrastate Unclassifiable/Attainment\nBeckham County\nCaddo County\nComanche County\nCotton County\nGreer County\nHarmon County\nJackson County\nJefferson County\nKiowa County\nStephens County\nTillman County\nWashita County\n1 This date is November 15, 1990, unless otherwise noted.\nOklahoma—Ozone (1-Hour Standard)2\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nAQCR 017 Metropolitan Fort Smith Interstate Unclassifiable/Attainment\nAdair County\nCherokee County\nLe Flore County\nSequoyah County\nAQCR 022 Shreveport-Texarkana-Tyler Intrastate Unclassifiable/Attainment\nMcCurtain County\nAQCR 184 Central Oklahoma Intrastate (part)\nCleveland County Unclassifiable/Attainment\nOklahoma County Unclassifiable/Attainment\nAQCR 184 Central Oklahoma Intrastate (Remainder of) Unclassifiable/Attainment\nCanadian County\nGrady County\nKingfisher County\nLincoln County\nLogan County\nMcClain County\nPottawatomie County\nAQCR 185 North Central Oklahoma Intrastate Unclassifiable/Attainment\nGarfield County\nGrant County\nKay County\nNoble County\nPayne County\nAQCR 186 Northeastern Oklahoma Intrastate Unclassifiable/Attainment\nCraig County\nCreek County\nDelaware County\nMayes County\nMuskogee County\nNowata County\nOkmulgee County\nOsage County\nOttawa County\nPawnee County\nRogers County\nTulsa County\nWagoner County\nWashington County\nAQCR 187 Northwestern Oklahoma Intrastate Unclassifiable/Attainment\nAlfalfa County\nBeaver County\nBlaine County\nCimarron County\nCuster County\nDewey County\nEllis County\nHarper County\nMajor County\nRoger Mills County\nTexas County\nWoods County\nWoodward County\nAQCR 188 Southeastern Oklahoma Intrastate Unclassifiable/Attainment\nAtoka County\nBryan County\nCarter County\nChoctaw County\nCoal County\nGarvin County\nHaskell County\nHughes County\nJohnston County\nLatimer County\nLove County\nMarshall County\nMcIntosh County\nMurray County\nOkfuskee County\nPittsburg County\nPontotoc County\nPushmataha County\nSeminole County\nAQCR 189 Southwestern Oklahoma Intrastate Unclassifiable/Attainment\nBeckham County\nCaddo County\nComanche County\nCotton County\nGreer County\nHarmon County\nJackson County\nJefferson County\nKiowa County\nStephens County\nTillman County\nWashita County\n1 This date is October 18, 2000, unless otherwise noted.\n2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Oklahoma.\nOklahoma—1997 Annual PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 017 Metropolitan Fort Smith Interstate:\nAdair County Unclassifiable/Attainment\nCherokee County Unclassifiable/Attainment\nLe Flore County Unclassifiable/Attainment\nSequoyah County Unclassifiable/Attainment\nAQCR 022 Shreveport-Texarkana-Tyler Intrastate:\nMcCurtain County Unclassifiable/Attainment\nAQCR 184 Central Oklahoma Intrastate (part):\nCleveland County Unclassifiable/Attainment\nOklahoma County Unclassifiable/Attainment\nAQCR 184 Central Oklahoma Intrastate (remainder of):\nCanadian County Unclassifiable/Attainment\nGrady County Unclassifiable/Attainment\nKingfisher County Unclassifiable/Attainment\nLincoln County Unclassifiable/Attainment\nLogan County Unclassifiable/Attainment\nMcClain County Unclassifiable/Attainment\nPottawatomie County Unclassifiable/Attainment\nAQCR 185 North Central Oklahoma Intrastate:\nGarfield County Unclassifiable/Attainment\nGrant County Unclassifiable/Attainment\nKay County Unclassifiable/Attainment\nNoble County Unclassifiable/Attainment\nPayne County Unclassifiable/Attainment\nAQCR 186 Northeastern Oklahoma Intrastate:\nCraig County Unclassifiable/Attainment\nCreek County Unclassifiable/Attainment\nDelaware County Unclassifiable/Attainment\nMayes County Unclassifiable/Attainment\nMuskogee County Unclassifiable/Attainment\nNowata County Unclassifiable/Attainment\nOkmulgee County Unclassifiable/Attainment\nOsage County Unclassifiable/Attainment\nOttawa County Unclassifiable/Attainment\nPawnee County Unclassifiable/Attainment\nRogers County Unclassifiable/Attainment\nTulsa County Unclassifiable/Attainment\nWagoner County Unclassifiable/Attainment\nWashington County Unclassifiable/Attainment\nAQCR 187 Northwestern Oklahoma Intrastate:\nAlfalfa County Unclassifiable/Attainment\nBeaver County Unclassifiable/Attainment\nBlaine County Unclassifiable/Attainment\nCimarron County Unclassifiable/Attainment\nCuster County Unclassifiable/Attainment\nDewey County Unclassifiable/Attainment\nEllis County Unclassifiable/Attainment\nHarper County Unclassifiable/Attainment\nMajor County Unclassifiable/Attainment\nRoger Mills County Unclassifiable/Attainment\nTexas County Unclassifiable/Attainment\nWoods County Unclassifiable/Attainment\nWoodward County Unclassifiable/Attainment\nAQCR 188 Southeastern Oklahoma Intrastate:\nAtoka County Unclassifiable/Attainment\nBryan County Unclassifiable/Attainment\nCarter County Unclassifiable/Attainment\nChoctaw County Unclassifiable/Attainment\nCoal County Unclassifiable/Attainment\nGarvin County Unclassifiable/Attainment\nHaskell County Unclassifiable/Attainment\nHughes County Unclassifiable/Attainment\nJohnston County Unclassifiable/Attainment\nLatimer County Unclassifiable/Attainment\nLove County Unclassifiable/Attainment\nMcIntosh County Unclassifiable/Attainment\nMarshall County Unclassifiable/Attainment\nMurray County Unclassifiable/Attainment\nOkfuskee County Unclassifiable/Attainment\nPittsburg County Unclassifiable/Attainment\nPontotoc County Unclassifiable/Attainment\nPushmataha County Unclassifiable/Attainment\nSeminole County Unclassifiable/Attainment\nAQCR 189 Southwestern Oklahoma Intrastate:\nBeckham County Unclassifiable/Attainment\nCaddo County Unclassifiable/Attainment\nComanche County Unclassifiable/Attainment\nCotton County Unclassifiable/Attainment\nGreer County Unclassifiable/Attainment\nHarmon County Unclassifiable/Attainment\nJackson County Unclassifiable/Attainment\nJefferson County Unclassifiable/Attainment\nKiowa County Unclassifiable/Attainment\nStephens County Unclassifiable/Attainment\nTillman County Unclassifiable/Attainment\nWashita County Unclassifiable/Attainment\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is 90 days after January 5, 2005, unless otherwise noted.\nOklahoma—2012 Annual PM2.5 NAAQS\n[Primary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nAQCR 017 Metropolitan Fort Smith Interstate:\nAdair County Unclassifiable/Attainment\nCherokee County Unclassifiable/Attainment\nLe Flore County Unclassifiable/Attainment\nSequoyah County Unclassifiable/Attainment\nAQCR 022 Shreveport-Texarkana-Tyler Intrastate:\nMcCurtain County Unclassifiable/Attainment\nAQCR 184 Central Oklahoma Intrastate:\nCanadian County Unclassifiable/Attainment\nCleveland County Unclassifiable/Attainment\nGrady County Unclassifiable/Attainment\nKingfisher County Unclassifiable/Attainment\nLincoln County Unclassifiable/Attainment\nLogan County Unclassifiable/Attainment\nMcClain County Unclassifiable/Attainment\nOklahoma County Unclassifiable/Attainment\nPottawatomie County Unclassifiable/Attainment\nAQCR 185 North Central Oklahoma Intrastate:\nGarfield County Unclassifiable/Attainment\nGrant County Unclassifiable/Attainment\nKay County Unclassifiable/Attainment\nNoble County Unclassifiable/Attainment\nPayne County Unclassifiable/Attainment\nAQCR 186 Northeastern Oklahoma Intrastate:\nCraig County Unclassifiable/Attainment\nCreek County Unclassifiable/Attainment\nDelaware County Unclassifiable/Attainment\nMayes County Unclassifiable/Attainment\nMuskogee County Unclassifiable/Attainment\nNowata County Unclassifiable/Attainment\nOkmulgee County Unclassifiable/Attainment\nOsage County Unclassifiable/Attainment\nOttawa County Unclassifiable/Attainment\nPawnee County Unclassifiable/Attainment\nRogers County Unclassifiable/Attainment\nTulsa County Unclassifiable/Attainment\nWagoner County Unclassifiable/Attainment\nWashington County Unclassifiable/Attainment\nAQCR 187 Northwestern Oklahoma Intrastate:\nAlfalfa County Unclassifiable/Attainment\nBeaver County Unclassifiable/Attainment\nBlaine County Unclassifiable/Attainment\nCimarron County Unclassifiable/Attainment\nCuster County Unclassifiable/Attainment\nDewey County Unclassifiable/Attainment\nEllis County Unclassifiable/Attainment\nHarper County Unclassifiable/Attainment\nMajor County Unclassifiable/Attainment\nRoger Mills County Unclassifiable/Attainment\nTexas County Unclassifiable/Attainment\nWoods County Unclassifiable/Attainment\nWoodward County Unclassifiable/Attainment\nAQCR 188 Southeastern Oklahoma Intrastate:\nAtoka County Unclassifiable/Attainment\nBryan County Unclassifiable/Attainment\nCarter County Unclassifiable/Attainment\nChoctaw County Unclassifiable/Attainment\nCoal County Unclassifiable/Attainment\nGarvin County Unclassifiable/Attainment\nHaskell County Unclassifiable/Attainment\nHughes County Unclassifiable/Attainment\nJohnston County Unclassifiable/Attainment\nLatimer County Unclassifiable/Attainment\nLove County Unclassifiable/Attainment\nMcIntosh County Unclassifiable/Attainment\nMarshall County Unclassifiable/Attainment\nMurray County Unclassifiable/Attainment\nOkfuskee County Unclassifiable/Attainment\nPittsburg County Unclassifiable/Attainment\nPontotoc County Unclassifiable/Attainment\nPushmataha County Unclassifiable/Attainment\nSeminole County Unclassifiable/Attainment\nAQCR 189 Southwestern Oklahoma Intrastate:\nBeckham County Unclassifiable/Attainment\nCaddo County Unclassifiable/Attainment\nComanche County Unclassifiable/Attainment\nCotton County Unclassifiable/Attainment\nGreer County Unclassifiable/Attainment\nHarmon County Unclassifiable/Attainment\nJackson County Unclassifiable/Attainment\nJefferson County Unclassifiable/Attainment\nKiowa County Unclassifiable/Attainment\nStephens County Unclassifiable/Attainment\nTillman County Unclassifiable/Attainment\nWashita County Unclassifiable/Attainment\n1 Includes areas of Indian country located in each county or area, except as otherwise specified.\n2 This date is April 15, 2015, unless otherwise noted.\nOklahoma—1997 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 017 Metropolitan Fort Smith Interstate:\nAdair County Unclassifiable/Attainment.\nCherokee County Unclassifiable/Attainment.\nLe Flore County Unclassifiable/Attainment.\nSequoyah County Unclassifiable/Attainment.\nAQCR 022 Shreveport-Texarkana-Tyler Intrastate:\nMcCurtain County Unclassifiable/Attainment.\nAQCR 184 Central Oklahoma Intrastate:\nCanadian County Unclassifiable/Attainment.\nCleveland County Unclassifiable/Attainment.\nGrady County Unclassifiable/Attainment.\nKingfisher County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nLogan County Unclassifiable/Attainment.\nMcClain County Unclassifiable/Attainment.\nOklahoma County Unclassifiable/Attainment.\nPottawatomie County Unclassifiable/Attainment.\nAQCR 185 North Central Oklahoma Intrastate:\nGarfield County Unclassifiable/Attainment.\nGrant County Unclassifiable/Attainment.\nKay County Unclassifiable/Attainment.\nNoble County Unclassifiable/Attainment.\nPayne County Unclassifiable/Attainment.\nAQCR 186 Northeastern Oklahoma Intrastate:\nCraig County Unclassifiable/Attainment.\nCreek County Unclassifiable/Attainment.\nDelaware County Unclassifiable/Attainment.\nMayes County Unclassifiable/Attainment.\nMuskogee County Unclassifiable/Attainment.\nNowata County Unclassifiable/Attainment.\nOkmulgee County Unclassifiable/Attainment.\nOsage County Unclassifiable/Attainment.\nOttawa County Unclassifiable/Attainment.\nPawnee County Unclassifiable/Attainment.\nRogers County Unclassifiable/Attainment.\nTulsa County Unclassifiable/Attainment.\nWagoner County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nAQCR 187 Northwestern Oklahoma Intrastate:\nAlfalfa County Unclassifiable/Attainment.\nBeaver County Unclassifiable/Attainment.\nBlaine County Unclassifiable/Attainment.\nCimarron County Unclassifiable/Attainment.\nCuster County Unclassifiable/Attainment.\nDewey County Unclassifiable/Attainment.\nEllis County Unclassifiable/Attainment.\nHarper County Unclassifiable/Attainment.\nMajor County Unclassifiable/Attainment.\nRoger Mills County Unclassifiable/Attainment.\nTexas County Unclassifiable/Attainment.\nWoods County Unclassifiable/Attainment.\nWoodward County Unclassifiable/Attainment.\nAQCR 188 Southeastern Oklahoma Intrastate:\nAtoka County Unclassifiable/Attainment.\nBryan County Unclassifiable/Attainment.\nCarter County Unclassifiable/Attainment.\nChoctaw County Unclassifiable/Attainment.\nCoal County Unclassifiable/Attainment.\nGarvin County Unclassifiable/Attainment.\nHaskell County Unclassifiable/Attainment.\nHughes County Unclassifiable/Attainment.\nJohnston County Unclassifiable/Attainment.\nLatimer County Unclassifiable/Attainment.\nLove County Unclassifiable/Attainment.\nMcIntosh County Unclassifiable/Attainment.\nMarshall County Unclassifiable/Attainment.\nMurray County Unclassifiable/Attainment.\nOkfuskee County Unclassifiable/Attainment.\nPittsburg County Unclassifiable/Attainment.\nPontotoc County Unclassifiable/Attainment.\nPushmataha County Unclassifiable/Attainment.\nSeminole County Unclassifiable/Attainment.\nAQCR 189 Southwestern Oklahoma Intrastate:\nBeckham County Unclassifiable/Attainment.\nCaddo County Unclassifiable/Attainment.\nComanche County Unclassifiable/Attainment.\nCotton County Unclassifiable/Attainment.\nGreer County Unclassifiable/Attainment.\nHarmon County Unclassifiable/Attainment.\nJackson County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nKiowa County Unclassifiable/Attainment.\nStephens County Unclassifiable/Attainment.\nTillman County Unclassifiable/Attainment.\nWashita County Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is 90 days after January 5, 2005, unless otherwise noted.\nOklahoma—2006 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 017 Metropolitan Fort Smith Interstate:\nAdair County Unclassifiable/Attainment.\nCherokee County Unclassifiable/Attainment.\nLe Flore County Unclassifiable/Attainment.\nSequoyah County Unclassifiable/Attainment.\nAQCR 022 Shreveport-Texarkana-Tyler Intrastate:\nMcCurtain County Unclassifiable/Attainment.\nAQCR 184 Central Oklahoma Intrastate:\nCanadian County Unclassifiable/Attainment.\nCleveland County Unclassifiable/Attainment.\nGrady County Unclassifiable/Attainment.\nKingfisher County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nLogan County Unclassifiable/Attainment.\nMcClain County Unclassifiable/Attainment.\nOklahoma County Unclassifiable/Attainment.\nPottawatomie County Unclassifiable/Attainment.\nAQCR 185 North Central Oklahoma Intrastate:\nGarfield County Unclassifiable/Attainment.\nGrant County Unclassifiable/Attainment.\nKay County Unclassifiable/Attainment.\nNoble County Unclassifiable/Attainment.\nPayne County Unclassifiable/Attainment.\nAQCR 186 Northeastern Oklahoma Intrastate:\nCraig County Unclassifiable/Attainment.\nCreek County Unclassifiable/Attainment.\nDelaware County Unclassifiable/Attainment.\nMayes County Unclassifiable/Attainment.\nMuskogee County Unclassifiable/Attainment.\nNowata County Unclassifiable/Attainment.\nOkmulgee County Unclassifiable/Attainment.\nOsage County Unclassifiable/Attainment.\nOttawa County Unclassifiable/Attainment.\nPawnee County Unclassifiable/Attainment.\nRogers County Unclassifiable/Attainment.\nTulsa County Unclassifiable/Attainment.\nWagoner County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nAQCR 187 Northwestern Oklahoma Intrastate:\nAlfalfa County Unclassifiable/Attainment.\nBeaver County Unclassifiable/Attainment.\nBlaine County Unclassifiable/Attainment.\nCimarron County Unclassifiable/Attainment.\nCuster County Unclassifiable/Attainment.\nDewey County Unclassifiable/Attainment.\nEllis County Unclassifiable/Attainment.\nHarper County Unclassifiable/Attainment.\nMajor County Unclassifiable/Attainment.\nRoger Mills County Unclassifiable/Attainment.\nTexas County Unclassifiable/Attainment.\nWoods County Unclassifiable/Attainment.\nWoodward County Unclassifiable/Attainment.\nAQCR 188 Southeastern Oklahoma Intrastate:\nAtoka County Unclassifiable/Attainment.\nBryan County Unclassifiable/Attainment.\nCarter County Unclassifiable/Attainment.\nChoctaw County Unclassifiable/Attainment.\nCoal County Unclassifiable/Attainment.\nGarvin County Unclassifiable/Attainment.\nHaskell County Unclassifiable/Attainment.\nHughes County Unclassifiable/Attainment.\nJohnston County Unclassifiable/Attainment.\nLatimer County Unclassifiable/Attainment.\nLove County Unclassifiable/Attainment.\nMcIntosh County Unclassifiable/Attainment.\nMarshall County Unclassifiable/Attainment.\nMurray County Unclassifiable/Attainment.\nOkfuskee County Unclassifiable/Attainment.\nPittsburg County Unclassifiable/Attainment.\nPontotoc County Unclassifiable/Attainment.\nPushmataha County Unclassifiable/Attainment.\nSeminole County Unclassifiable/Attainment.\nAQCR 189 Southwestern Oklahoma Intrastate:\nBeckham County Unclassifiable/Attainment.\nCaddo County Unclassifiable/Attainment.\nComanche County Unclassifiable/Attainment.\nCotton County Unclassifiable/Attainment.\nGreer County Unclassifiable/Attainment.\nHarmon County Unclassifiable/Attainment.\nJackson County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nKiowa County Unclassifiable/Attainment.\nStephens County Unclassifiable/Attainment.\nTillman County Unclassifiable/Attainment.\nWashita County Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is 30 days after November 13, 2009, unless otherwise noted.\nOklahoma—NO2 (1971 Annual Standard)\nDesignated area Does not meet primary standards Cannot be classified or better than national standards\nAQCR 017 X\nAQCR 184 X\nAQCR 185 X\nAQCR 186 X\nAQCR 187 X\nAQCR 188 X\nAQCR 189 X\nOklahoma—NO2 (2010 1-Hour Standard)\nDesignated area Designation a\nDate 1 Type\nAdair County Unclassifiable/Attainment.\nAlfalfa County Unclassifiable/Attainment.\nAtoka County Unclassifiable/Attainment.\nBeaver County Unclassifiable/Attainment.\nBeckham County Unclassifiable/Attainment.\nBlaine County Unclassifiable/Attainment.\nBryan County Unclassifiable/Attainment.\nCaddo County Unclassifiable/Attainment.\nCanadian County Unclassifiable/Attainment.\nCarter County Unclassifiable/Attainment.\nCherokee County Unclassifiable/Attainment.\nChoctaw County Unclassifiable/Attainment.\nCimarron County Unclassifiable/Attainment.\nCleveland County Unclassifiable/Attainment.\nCoal County Unclassifiable/Attainment.\nComanche County Unclassifiable/Attainment.\nCotton County Unclassifiable/Attainment.\nCraig County Unclassifiable/Attainment.\nCreek County Unclassifiable/Attainment.\nCuster County Unclassifiable/Attainment.\nDelaware County Unclassifiable/Attainment.\nDewey County Unclassifiable/Attainment.\nEllis County Unclassifiable/Attainment.\nGarfield County Unclassifiable/Attainment.\nGarvin County Unclassifiable/Attainment.\nGrady County Unclassifiable/Attainment.\nGrant County Unclassifiable/Attainment.\nGreer County Unclassifiable/Attainment.\nHarmon County Unclassifiable/Attainment.\nHarper County Unclassifiable/Attainment.\nHaskell County Unclassifiable/Attainment.\nHughes County Unclassifiable/Attainment.\nJackson County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nJohnston County Unclassifiable/Attainment.\nKay County Unclassifiable/Attainment.\nKingfisher County Unclassifiable/Attainment.\nKiowa County Unclassifiable/Attainment.\nLatimer County Unclassifiable/Attainment.\nLe Flore County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nLogan County Unclassifiable/Attainment.\nLove County Unclassifiable/Attainment.\nMajor County Unclassifiable/Attainment.\nMarshall County Unclassifiable/Attainment.\nMayes County Unclassifiable/Attainment.\nMcClain County Unclassifiable/Attainment.\nMcCurtain County Unclassifiable/Attainment.\nMcIntosh County Unclassifiable/Attainment.\nMurray County Unclassifiable/Attainment.\nMuskogee County Unclassifiable/Attainment.\nNoble County Unclassifiable/Attainment.\nNowata County Unclassifiable/Attainment.\nOkfuskee County Unclassifiable/Attainment.\nOklahoma County Unclassifiable/Attainment.\nOkmulgee County Unclassifiable/Attainment.\nOsage County Unclassifiable/Attainment.\nOttawa County Unclassifiable/Attainment.\nPawnee County Unclassifiable/Attainment.\nPayne County Unclassifiable/Attainment.\nPittsburg County Unclassifiable/Attainment.\nPontotoc County Unclassifiable/Attainment.\nPottawatomie County Unclassifiable/Attainment.\nPushmataha County Unclassifiable/Attainment.\nRoger Mills County Unclassifiable/Attainment.\nRogers County Unclassifiable/Attainment.\nSeminole County Unclassifiable/Attainment.\nSequoyah County Unclassifiable/Attainment.\nStephens County Unclassifiable/Attainment.\nTexas County Unclassifiable/Attainment.\nTillman County Unclassifiable/Attainment.\nTulsa County Unclassifiable/Attainment.\nWagoner County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nWashita County Unclassifiable/Attainment.\nWoods County Unclassifiable/Attainment.\nWoodward County Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is 90 days after October 31, 2011, unless otherwise noted.\nOklahoma—1997 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation a Category/classification\nDate 1 Type Date 1 Type\nAQCR 017 Metropolitan Fort Smith Interstate Unclassifiable/Attainment\nAdair County\nCherokee County\nLe Flore County\nSequoyah County\nAQCR 022 Shreveport-Texarkana-Tyler Intrastate: McCurtain County Unclassifiable/Attainment\nAQCR 184 Central Oklahoma Intrastate (part):\nCleveland County Unclassifiable/Attainment\nOklahoma County Unclassifiable/Attainment\nAQCR 184 Central Oklahoma Intrastate (remainder of) Unclassifiable/Attainment\nCanadian County\nGrady County\nKingfisher County\nLincoln County\nLogan County\nMcClain County\nPottawatomie County\nAQCR 185 North Central Oklahoma Intrastate Unclassifiable/Attainment\nGarfield County\nGrant County\nKay County\nNoble County\nPayne County\nAQCR 186 Northeastern Oklahoma Intrastate Unclassifiable/Attainment\nCraig County\nCreek County\nDelaware County\nMayes County\nMuskogee County\nNowata County\nOkmulgee County\nOsage County\nOttawa County\nPawnee County\nRogers County\nTulsa County\nWagoner County\nWashington County\nAQCR 187 Northwestern Oklahoma Intrastate Unclassifiable/Attainment\nAlfalfa County\nBeaver County\nBlaine County\nCimarron County\nCuster County\nDewey County\nEllis County\nHarper County\nMajor County\nRoger Mills County\nTexas County\nWoods County\nWoodward County\nAQCR 188 Southeastern Oklahoma Intrastate Unclassifiable/Attainment\nAtoka County\nBryan County\nCarter County\nChoctaw County\nCoal County\nGarvin County\nHaskell County\nHughes County\nJohnston County\nLatimer County\nLove County\nMarshall County\nMcIntosh County\nMurray County\nOkfuskee County\nPittsburg County\nPontotoc County\nPushmataha County\nSeminole County\nAQCR 189 Southwestern Oklahoma Intrastate Unclassifiable/Attainment\nBeckham County\nCaddo County\nComanche County\nCotton County\nGreer County\nHarmon County\nJackson County\nJefferson County\nKiowa County\nStephens County\nTillman County\nWashita County\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is June 15, 2004, unless otherwise noted.\nOklahoma—2008 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nAdair County Unclassifiable/Attainment\nAlfalfa County Unclassifiable/Attainment\nAtoka County Unclassifiable/Attainment\nBeaver County Unclassifiable/Attainment\nBeckham County Unclassifiable/Attainment\nBlaine County Unclassifiable/Attainment\nBryan County Unclassifiable/Attainment\nCaddo County Unclassifiable/Attainment\nCanadian County Unclassifiable/Attainment\nCarter County Unclassifiable/Attainment\nCherokee County Unclassifiable/Attainment\nChoctaw County Unclassifiable/Attainment\nCimarron County Unclassifiable/Attainment\nCleveland County Unclassifiable/Attainment\nCoal County Unclassifiable/Attainment\nComanche County Unclassifiable/Attainment\nCotton County Unclassifiable/Attainment\nCraig County Unclassifiable/Attainment\nCreek County Unclassifiable/Attainment\nCuster County Unclassifiable/Attainment\nDelaware County Unclassifiable/Attainment\nDewey County Unclassifiable/Attainment\nEllis County Unclassifiable/Attainment\nGarfield County Unclassifiable/Attainment\nGarvin County Unclassifiable/Attainment\nGrady County Unclassifiable/Attainment\nGrant County Unclassifiable/Attainment\nGreer County Unclassifiable/Attainment\nHarmon County Unclassifiable/Attainment\nHarper County Unclassifiable/Attainment\nHaskell County Unclassifiable/Attainment\nHughes County Unclassifiable/Attainment\nJackson County Unclassifiable/Attainment\nJefferson County Unclassifiable/Attainment\nJohnston County Unclassifiable/Attainment\nKay County Unclassifiable/Attainment\nKingfisher County Unclassifiable/Attainment\nKiowa County Unclassifiable/Attainment\nLatimer County Unclassifiable/Attainment\nLe Flore County Unclassifiable/Attainment\nLincoln County Unclassifiable/Attainment\nLogan County Unclassifiable/Attainment\nLove County Unclassifiable/Attainment\nMajor County Unclassifiable/Attainment\nMarshall County Unclassifiable/Attainment\nMayes County Unclassifiable/Attainment\nMcClain County Unclassifiable/Attainment\nMcCurtain County Unclassifiable/Attainment\nMcIntosh County Unclassifiable/Attainment\nMurray County Unclassifiable/Attainment\nMuskogee County Unclassifiable/Attainment\nNoble County Unclassifiable/Attainment\nNowata County Unclassifiable/Attainment\nOkfuskee County Unclassifiable/Attainment\nOklahoma County Unclassifiable/Attainment\nOkmulgee County Unclassifiable/Attainment\nOsage County Unclassifiable/Attainment\nOttawa County Unclassifiable/Attainment\nPawnee County Unclassifiable/Attainment\nPayne County Unclassifiable/Attainment\nPittsburg County Unclassifiable/Attainment\nPontotoc County Unclassifiable/Attainment\nPottawatomie County Unclassifiable/Attainment\nPushmataha County Unclassifiable/Attainment\nRoger Mills County Unclassifiable/Attainment\nRogers County Unclassifiable/Attainment\nSeminole County Unclassifiable/Attainment\nSequoyah County Unclassifiable/Attainment\nStephens County Unclassifiable/Attainment\nTexas County Unclassifiable/Attainment\nTillman County Unclassifiable/Attainment\nTulsa County Unclassifiable/Attainment\nWagoner County Unclassifiable/Attainment\nWashington County Unclassifiable/Attainment\nWashita County Unclassifiable/Attainment\nWoods County Unclassifiable/Attainment\nWoodward County Unclassifiable/Attainment\n1 Includes any Indian country in each county or area, unless otherwise specified.\n2 This date is July 20, 2012, unless otherwise noted.\nOklahoma—2015 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nAdair County 1/16/2018 Attainment/Unclassifiable\nAlfalfa County 1/16/2018 Attainment/Unclassifiable\nAtoka County 1/16/2018 Attainment/Unclassifiable\nBeaver County 1/16/2018 Attainment/Unclassifiable\nBeckham County 1/16/2018 Attainment/Unclassifiable\nBlaine County 1/16/2018 Attainment/Unclassifiable\nBryan County Attainment/Unclassifiable\nCaddo County 1/16/2018 Attainment/Unclassifiable\nCanadian County 1/16/2018 Attainment/Unclassifiable\nCarter County 1/16/2018 Attainment/Unclassifiable\nCherokee County 1/16/2018 Attainment/Unclassifiable\nChoctaw County 1/16/2018 Attainment/Unclassifiable\nCimarron County 1/16/2018 Attainment/Unclassifiable\nCleveland County 1/16/2018 Attainment/Unclassifiable\nCoal County 1/16/2018 Attainment/Unclassifiable\nComanche County 1/16/2018 Attainment/Unclassifiable\nCotton County 1/16/2018 Attainment/Unclassifiable\nCraig County 1/16/2018 Attainment/Unclassifiable\nCreek County 1/16/2018 Attainment/Unclassifiable\nCuster County 1/16/2018 Attainment/Unclassifiable\nDelaware County 1/16/2018 Attainment/Unclassifiable\nDewey County 1/16/2018 Attainment/Unclassifiable\nEllis County 1/16/2018 Attainment/Unclassifiable\nGarfield County 1/16/2018 Attainment/Unclassifiable\nGarvin County 1/16/2018 Attainment/Unclassifiable\nGrady County 1/16/2018 Attainment/Unclassifiable\nGrant County 1/16/2018 Attainment/Unclassifiable\nGreer County 1/16/2018 Attainment/Unclassifiable\nHarmon County 1/16/2018 Attainment/Unclassifiable\nHarper County 1/16/2018 Attainment/Unclassifiable\nHaskell County 1/16/2018 Attainment/Unclassifiable\nHughes County 1/16/2018 Attainment/Unclassifiable\nJackson County 1/16/2018 Attainment/Unclassifiable\nJefferson County 1/16/2018 Attainment/Unclassifiable\nJohnston County 1/16/2018 Attainment/Unclassifiable\nKay County 1/16/2018 Attainment/Unclassifiable\nKingfisher County 1/16/2018 Attainment/Unclassifiable\nKiowa County 1/16/2018 Attainment/Unclassifiable\nLatimer County 1/16/2018 Attainment/Unclassifiable\nLe Flore County 1/16/2018 Attainment/Unclassifiable\nLincoln County 1/16/2018 Attainment/Unclassifiable\nLogan County 1/16/2018 Attainment/Unclassifiable\nLove County 1/16/2018 Attainment/Unclassifiable\nMcClain County 1/16/2018 Attainment/Unclassifiable\nMcCurtain County 1/16/2018 Attainment/Unclassifiable\nMcIntosh County 1/16/2018 Attainment/Unclassifiable\nMajor County 1/16/2018 Attainment/Unclassifiable\nMarshall County 1/16/2018 Attainment/Unclassifiable\nMayes County 1/16/2018 Attainment/Unclassifiable\nMurray County 1/16/2018 Attainment/Unclassifiable\nMuskogee County 1/16/2018 Attainment/Unclassifiable\nNoble County 1/16/2018 Attainment/Unclassifiable\nNowata County 1/16/2018 Attainment/Unclassifiable\nOkfuskee County 1/16/2018 Attainment/Unclassifiable\nOklahoma County 1/16/2018 Attainment/Unclassifiable\nOkmulgee County 1/16/2018 Attainment/Unclassifiable\nOsage County 1/16/2018 Attainment/Unclassifiable\nOttawa County 1/16/2018 Attainment/Unclassifiable\nPawnee County 1/16/2018 Attainment/Unclassifiable\nPayne County 1/16/2018 Attainment/Unclassifiable\nPittsburg County 1/16/2018 Attainment/Unclassifiable\nPontotoc County 1/16/2018 Attainment/Unclassifiable\nPottawatomie County 1/16/2018 Attainment/Unclassifiable\nPushmataha County 1/16/2018 Attainment/Unclassifiable\nRoger Mills County 1/16/2018 Attainment/Unclassifiable\nRogers County 1/16/2018 Attainment/Unclassifiable\nSeminole County 1/16/2018 Attainment/Unclassifiable\nSequoyah County 1/16/2018 Attainment/Unclassifiable\nStephens County 1/16/2018 Attainment/Unclassifiable\nTexas County 1/16/2018 Attainment/Unclassifiable\nTillman County 1/16/2018 Attainment/Unclassifiable\nTulsa County 1/16/2018 Attainment/Unclassifiable\nWagoner County 1/16/2018 Attainment/Unclassifiable\nWashington County 1/16/2018 Attainment/Unclassifiable\nWashita County 1/16/2018 Attainment/Unclassifiable\nWoods County 1/16/2018 Attainment/Unclassifiable\nWoodward County 1/16/2018 Attainment/Unclassifiable\n1 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.\n2 This date is August 3, 2018, unless otherwise noted.\nOklahoma—2008 Lead NAAQS\nDesignated area Designation for the 2008 NAAQSa\nDate1 Type\nWhole State Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 December 31, 2011 unless otherwise noted.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 81—DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES","Subpart C—Section 107 Attainment Status Designations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"de811d3526322884ac5e1e6af3547050d6d281038082890b41f436db9a90509d","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-81.336","next":"us/40-cfr-81.338"},"notice":"GroundRules: Original legal text. Not legal advice."}