{"data":{"id":"us/40-cfr-81.325","jurisdiction":"us","citation":"40 CFR 81.325","heading":"Mississippi.","body":"Mississippi—TSP\nDesignated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards\nAdams County X\nAlcorn County X\nAmite County X\nAttala County X\nBenton County X\nBolivar County X\nCalhoun County X\nCarroll County X\nChickasaw County X\nChoctaw County X\nClairborne County X\nClarke County X\nClay County X\nCoahoma County X\nCopiah County X\nCovington County X\nDeSoto County X\nForrest County X\nFranklin County X\nGeorge County X\nGreene County X\nGrenada County X\nHancock County X\nHarrison County X\nHinds County X\nHolmes County X\nHumphreys County X\nIssaquena County X\nIttawamba County X\nJackson County X\nJasper County X\nJefferson County X\nJefferson Davis County X\nJones County X\nKemper County X\nLafayette County X\nLamar County X\nLauderdale County X\nLawerence County X\nLeake County X\nLee County X\nLeflore County X\nLincoln County X\nLowndes County X\nMadison County X\nMarion County X\nMarshall County X\nMonroe County X\nMontgomery County X\nNeshoba County X\nNewton County X\nNoxubee County X\nOktibbeha County X\nPanola County X\nPearl River County X\nPerry County X\nPike County X\nPontotoc County X\nPrentiss County X\nQuitman County X\nRankin County X\nScott County X\nSharkey County X\nSimpson County X\nSmith County X\nStone County X\nSunflower County X\nTallahatchie County X\nTate County X\nTippah County X\nTishomingo County X\nTunica County X\nUnion County X\nWalthall County X\nWarren County X\nWashington County X\nWayne County X\nWebster County X\nWilkinson County X\nWinston County X\nYalobusha County X\nYazoo County X\nMississippi—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\nAdams County X\nAlcorn County X\nAmite County X\nAttala County X\nBenton County X\nBolivar County X\nCalhoun County X\nCarroll County X\nChickasaw County X\nChoctaw County X\nClairborne County X\nClarke County X\nClay County X\nCoahoma County X\nCopiah County X\nCovington County X\nDeSoto County X\nForest County X\nFranklin County X\nGeorge County X\nGreene County X\nGrenada County X\nHancock County X\nHarrison County X\nHinds County X\nHolmes County X\nHumphreys County X\nIssaquena County X\nIttawamba County X\nJackson County X\nJasper County X\nJefferson County X\nJefferson Davis County X\nJones County X\nKemper County X\nLafayette County X\nLamar County X\nLauderdale County X\nLawrence County X\nLeake County X\nLee County X\nLeflore County X\nLincoln County X\nLowndes County X\nMadison County X\nMarion County X\nMarshall County X\nMonroe County X\nMontgomery County X\nNeshoba County X\nNewton County X\nNoxubee County X\nOktibbeha County X\nPanola County X\nPearl River County X\nPerry County X\nPike County X\nPontotoc County X\nPrentiss County X\nQuitman County X\nRankin County X\nScott County X\nSharkey County X\nSimpson County X\nSmith County X\nStone County X\nSunflower County X\nTallahatchie County X\nTate County X\nTippah County X\nTishomingo County X\nTunica County X\nUnion County X\nWalthall County X\nWarren County X\nWashington County X\nWayne County X\nWebster County X\nWilkinson County X\nWinston County X\nYalobusha County X\nYazoo County X\nMississippi—2010 Sulfur Dioxide NAAQS\n[Primary]\nDesignated area 1 Designation\nDate 2 Type\nAdams County Attainment/Unclassifiable.\nAlcorn County Attainment/Unclassifiable.\nAmite County Attainment/Unclassifiable.\nAttala County Attainment/Unclassifiable.\nBenton County Attainment/Unclassifiable.\nBolivar County Attainment/Unclassifiable.\nCalhoun County Attainment/Unclassifiable.\nCarroll County Attainment/Unclassifiable.\nChickasaw County Attainment/Unclassifiable.\nChoctaw County Attainment/Unclassifiable.\nClaiborne County Attainment/Unclassifiable.\nClarke County Attainment/Unclassifiable.\nClay County Attainment/Unclassifiable.\nCoahoma County Attainment/Unclassifiable.\nCopiah County Attainment/Unclassifiable.\nCovington County Attainment/Unclassifiable.\nDeSoto County Attainment/Unclassifiable.\nForrest County Attainment/Unclassifiable.\nFranklin County Attainment/Unclassifiable.\nGeorge County Attainment/Unclassifiable.\nGreene County Attainment/Unclassifiable.\nGrenada County Attainment/Unclassifiable.\nHancock County Attainment/Unclassifiable.\nHarrison County Attainment/Unclassifiable.\nHinds County Attainment/Unclassifiable.\nHolmes County Attainment/Unclassifiable.\nHumphreys County Attainment/Unclassifiable.\nIssaquena County Attainment/Unclassifiable.\nItawamba County Attainment/Unclassifiable.\nJackson County Attainment/Unclassifiable.\nJasper County Attainment/Unclassifiable.\nJefferson County Attainment/Unclassifiable.\nJefferson Davis County Attainment/Unclassifiable.\nJones County Attainment/Unclassifiable.\nKemper County Attainment/Unclassifiable.\nLafayette County Attainment/Unclassifiable.\nLamar County, MS 9/12/2016 Attainment/Unclassifiable.\nLauderdale County Attainment/Unclassifiable.\nLawrence County Attainment/Unclassifiable.\nLeake County Attainment/Unclassifiable.\nLee County Attainment/Unclassifiable.\nLeflore County Attainment/Unclassifiable.\nLincoln County Attainment/Unclassifiable.\nLowndes County Attainment/Unclassifiable.\nMadison County Attainment/Unclassifiable.\nMarion County Attainment/Unclassifiable.\nMarshall County Attainment/Unclassifiable.\nMonroe County Attainment/Unclassifiable.\nMontgomery County Attainment/Unclassifiable.\nNeshoba County Attainment/Unclassifiable.\nNewton County Attainment/Unclassifiable.\nNoxubee County Attainment/Unclassifiable.\nOktibbeha County Attainment/Unclassifiable.\nPanola County Attainment/Unclassifiable.\nPearl River County Attainment/Unclassifiable.\nPerry County Attainment/Unclassifiable.\nPike County Attainment/Unclassifiable.\nPontotoc County Attainment/Unclassifiable.\nPrentiss County Attainment/Unclassifiable.\nQuitman County Attainment/Unclassifiable.\nRankin County Attainment/Unclassifiable.\nScott County Attainment/Unclassifiable.\nSharkey County Attainment/Unclassifiable.\nSimpson County Attainment/Unclassifiable.\nSmith County Attainment/Unclassifiable.\nStone County Attainment/Unclassifiable.\nSunflower County Attainment/Unclassifiable.\nTallahatchie County Attainment/Unclassifiable.\nTate County Attainment/Unclassifiable.\nTippah County Attainment/Unclassifiable.\nTishomingo County Attainment/Unclassifiable.\nTunica County Attainment/Unclassifiable.\nUnion County Attainment/Unclassifiable.\nWalthall County Attainment/Unclassifiable.\nWarren County Attainment/Unclassifiable.\nWashington County Attainment/Unclassifiable.\nWayne County Attainment/Unclassifiable.\nWebster County Attainment/Unclassifiable.\nWilkinson County Attainment/Unclassifiable.\nWinston County Attainment/Unclassifiable.\nYalobusha County Attainment/Unclassifiable.\nYazoo 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.\nMississippi—Carbon Monoxide\nDesignated Area Designation Classification\nDate 1 Type Date 1 Type\nStatewide Unclassifiable/Attainment\nAdams County\nAlcorn County\nAmite County\nAttala County\nBenton County\nBolivar County\nCalhoun County\nCarroll County\nChickasaw County\nChoctaw County\nClaiborne County\nClarke County\nClay County\nCoahoma County\nCopiah County\nCovington County\nDeSoto County\nForrest County\nFranklin County\nGeorge County\nGreene County\nGrenada County\nHancock County\nHarrison County\nHinds County\nHolmes County\nHumphreys County\nIssaquena County\nItawamba County\nJackson County\nJasper County\nJefferson County\nJefferson Davis County\nJones County\nKemper County\nLafayette County\nLamar County\nLauderdale County\nLawrence County\nLeake County\nLee County\nLeflore County\nLincoln County\nLowndes County\nMadison County\nMarion County\nMarshall County\nMonroe County\nMontgomery County\nNeshoba County\nNewton County\nNoxubee County\nOktibbeha County\nPanola County\nPearl River County\nPerry County\nPike County\nPontotoc County\nPrentiss County\nQuitman County\nRankin County\nScott County\nSharkey County\nSimpson County\nSmith County\nStone County\nSunflower County\nTallahatchie County\nTate County\nTippah County\nTishomingo County\nTunica County\nUnion County\nWalthall County\nWarren County\nWashington County\nWayne County\nWebster County\nWilkinson County\nWinston County\nYalobusha County\nYazoo County\n1 This date is November 15, 1990, unless otherwise noted.\nMississippi—Ozone (1-Hour Standard)2\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nMemphis:\nDe Soto County 11/15/1990 Unclassifiable/Attainment 11/15/90\nStatewide Unclassifiable/Attainment\nAdams County\nAlcorn County\nAmite County\nAttala County\nBenton County\nBolivar County\nCalhoun County\nCarroll County\nChickasaw County\nChoctaw County\nClaiborne County\nClarke County\nClay County\nCoahoma County\nCopiah County\nCovington County\nForrest County\nFranklin County\nGeorge County\nGreene County\nGrenada County\nHancock County\nHarrison County\nHinds County\nHolmes County\nHumphreys County\nIssaquena County\nItawamba County\nJackson County\nJasper County\nJefferson County\nJefferson Davis County\nJones County\nKemper County\nLafayette County\nLamar County\nLauderdale County\nLawrence County\nLeake County\nLee County\nLeflore County\nLincoln County\nLowndes County\nMadison County\nMarion County\nMarshall County\nMonroe County\nMontgomery County\nNeshoba County\nNewton County\nNoxubee County\nOktibbeha County\nPanola County\nPearl River County\nPerry County\nPike County\nPontotoc County\nPrentiss County\nQuitman County\nRankin County\nScott County\nSharkey County\nSimpson County\nSmith County\nStone County\nSunflower County\nTallahatchie County\nTate County\nTippah County\nTishomingo County\nTunica County\nUnion County\nWalthall County\nWarren County\nWashington County\nWayne County\nWebster County\nWilkinson County\nWinston County\nYalobusha County\nYazoo 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 Mississippi.\nMississippi—1997 Annual PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nStatewide:\nAdams County Unclassifiable/Attainment.\nAlcorn County Unclassifiable/Attainment.\nAmite County Unclassifiable/Attainment.\nAttala County Unclassifiable/Attainment.\nBenton County Unclassifiable/Attainment.\nBolivar County Unclassifiable/Attainment.\nCalhoun County Unclassifiable/Attainment.\nCarroll County Unclassifiable/Attainment.\nChickasaw County Unclassifiable/Attainment.\nChoctaw County Unclassifiable/Attainment.\nClaiborne County Unclassifiable/Attainment.\nClarke County Unclassifiable/Attainment.\nClay County Unclassifiable/Attainment.\nCoahoma County Unclassifiable/Attainment.\nCopiah County Unclassifiable/Attainment.\nCovington County Unclassifiable/Attainment.\nDeSoto County Unclassifiable/Attainment.\nForrest County Unclassifiable/Attainment.\nFranklin County Unclassifiable/Attainment.\nGeorge County Unclassifiable/Attainment.\nGreene County Unclassifiable/Attainment.\nGrenada County Unclassifiable/Attainment.\nHancock County Unclassifiable/Attainment.\nHarrison County Unclassifiable/Attainment.\nHinds County Unclassifiable/Attainment.\nHolmes County Unclassifiable/Attainment.\nHumphreys County Unclassifiable/Attainment.\nIssaquena County Unclassifiable/Attainment.\nItawamba County Unclassifiable/Attainment.\nJackson County Unclassifiable/Attainment.\nJasper County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nJefferson Davis County Unclassifiable/Attainment.\nJones County Unclassifiable/Attainment.\nKemper County Unclassifiable/Attainment.\nLafayette County Unclassifiable/Attainment.\nLamar County Unclassifiable/Attainment.\nLauderdale County Unclassifiable/Attainment.\nLawrence County Unclassifiable/Attainment.\nLeake County Unclassifiable/Attainment.\nLee County Unclassifiable/Attainment.\nLeflore County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nLowndes County Unclassifiable/Attainment.\nMadison County Unclassifiable/Attainment.\nMarion County Unclassifiable/Attainment.\nMarshall County Unclassifiable/Attainment.\nMonroe County Unclassifiable/Attainment.\nMontgomery County Unclassifiable/Attainment.\nNeshoba County Unclassifiable/Attainment.\nNewton County Unclassifiable/Attainment.\nNoxubee County Unclassifiable/Attainment.\nOktibbeha County Unclassifiable/Attainment.\nPanola County Unclassifiable/Attainment.\nPearl River County Unclassifiable/Attainment.\nPerry County Unclassifiable/Attainment.\nPike County Unclassifiable/Attainment.\nPontotoc County Unclassifiable/Attainment.\nPrentiss County Unclassifiable/Attainment.\nQuitman County Unclassifiable/Attainment.\nRankin County Unclassifiable/Attainment.\nScott County Unclassifiable/Attainment.\nSharkey County Unclassifiable/Attainment.\nSimpson County Unclassifiable/Attainment.\nSmith County Unclassifiable/Attainment.\nStone County Unclassifiable/Attainment.\nSunflower County Unclassifiable/Attainment.\nTallahatchie County Unclassifiable/Attainment.\nTate County Unclassifiable/Attainment.\nTippah County Unclassifiable/Attainment.\nTishomingo County Unclassifiable/Attainment.\nTunica County Unclassifiable/Attainment.\nUnion County Unclassifiable/Attainment.\nWalthall County Unclassifiable/Attainment.\nWarren County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nWayne County Unclassifiable/Attainment.\nWebster County Unclassifiable/Attainment.\nWilkinson County Unclassifiable/Attainment.\nWinston County Unclassifiable/Attainment.\nYalobusha County Unclassifiable/Attainment.\nYazoo 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.\nMississippi—2012 Annual PM2.5 NAAQS\n[Primary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nStatewide:\nAdams County Unclassifiable/Attainment\nAlcorn County Unclassifiable/Attainment\nAmite County Unclassifiable/Attainment\nAttala County Unclassifiable/Attainment\nBenton County Unclassifiable/Attainment\nBolivar County Unclassifiable/Attainment\nCalhoun County Unclassifiable/Attainment\nCarroll County Unclassifiable/Attainment\nChickasaw County Unclassifiable/Attainment\nChoctaw County Unclassifiable/Attainment\nClaiborne County Unclassifiable/Attainment\nClarke County Unclassifiable/Attainment\nClay County Unclassifiable/Attainment\nCoahoma County Unclassifiable/Attainment\nCopiah County Unclassifiable/Attainment\nCovington County Unclassifiable/Attainment\nDeSoto County Unclassifiable/Attainment\nForrest County Unclassifiable/Attainment\nFranklin County Unclassifiable/Attainment\nGeorge County Unclassifiable/Attainment\nGreene County Unclassifiable/Attainment\nGrenada County Unclassifiable/Attainment\nHancock County Unclassifiable/Attainment\nHarrison County Unclassifiable/Attainment\nHinds County Unclassifiable/Attainment\nHolmes County Unclassifiable/Attainment\nHumphreys County Unclassifiable/Attainment\nIssaquena County Unclassifiable/Attainment\nItawamba County Unclassifiable/Attainment\nJackson County Unclassifiable/Attainment\nJasper County Unclassifiable/Attainment\nJefferson County Unclassifiable/Attainment\nJefferson Davis County Unclassifiable/Attainment\nJones County Unclassifiable/Attainment\nKemper County Unclassifiable/Attainment\nLafayette County Unclassifiable/Attainment\nLamar County Unclassifiable/Attainment\nLauderdale County Unclassifiable/Attainment\nLawrence County Unclassifiable/Attainment\nLeake County Unclassifiable/Attainment\nLee County Unclassifiable/Attainment\nLeflore County Unclassifiable/Attainment\nLincoln County Unclassifiable/Attainment\nLowndes County Unclassifiable/Attainment\nMadison County Unclassifiable/Attainment\nMarion County Unclassifiable/Attainment\nMarshall County Unclassifiable/Attainment\nMonroe County Unclassifiable/Attainment\nMontgomery County Unclassifiable/Attainment\nNeshoba County Unclassifiable/Attainment\nNewton County Unclassifiable/Attainment\nNoxubee County Unclassifiable/Attainment\nOktibbeha County Unclassifiable/Attainment\nPanola County Unclassifiable/Attainment\nPearl River County Unclassifiable/Attainment\nPerry County Unclassifiable/Attainment\nPike County Unclassifiable/Attainment\nPontotoc County Unclassifiable/Attainment\nPrentiss County Unclassifiable/Attainment\nQuitman County Unclassifiable/Attainment\nRankin County Unclassifiable/Attainment\nScott County Unclassifiable/Attainment\nSharkey County Unclassifiable/Attainment\nSimpson County Unclassifiable/Attainment\nSmith County Unclassifiable/Attainment\nStone County Unclassifiable/Attainment\nSunflower County Unclassifiable/Attainment\nTallahatchie County Unclassifiable/Attainment\nTate County Unclassifiable/Attainment\nTippah County Unclassifiable/Attainment\nTishomingo County Unclassifiable/Attainment\nTunica County Unclassifiable/Attainment\nUnion County Unclassifiable/Attainment\nWalthall County Unclassifiable/Attainment\nWarren County Unclassifiable/Attainment\nWashington County Unclassifiable/Attainment\nWayne County Unclassifiable/Attainment\nWebster County Unclassifiable/Attainment\nWilkinson County Unclassifiable/Attainment\nWinston County Unclassifiable/Attainment\nYalobusha County Unclassifiable/Attainment\nYazoo 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.\nMississippi—1997 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate1 Type Date Type\nStatewide:\nAdams County Unclassifiable/Attainment.\nAlcorn County Unclassifiable/Attainment.\nAmite County Unclassifiable/Attainment.\nAttala County Unclassifiable/Attainment.\nBenton County Unclassifiable/Attainment.\nBolivar County Unclassifiable/Attainment.\nCalhoun County Unclassifiable/Attainment.\nCarroll County Unclassifiable/Attainment.\nChickasaw County Unclassifiable/Attainment.\nChoctaw County Unclassifiable/Attainment.\nClaiborne County Unclassifiable/Attainment.\nClarke County Unclassifiable/Attainment.\nClay County Unclassifiable/Attainment.\nCoahoma County Unclassifiable/Attainment.\nCopiah County Unclassifiable/Attainment.\nCovington County Unclassifiable/Attainment.\nDeSoto County Unclassifiable/Attainment.\nForrest County Unclassifiable/Attainment.\nFranklin County Unclassifiable/Attainment.\nGeorge County Unclassifiable/Attainment.\nGreene County Unclassifiable/Attainment.\nGrenada County Unclassifiable/Attainment.\nHancock County Unclassifiable/Attainment.\nHarrison County Unclassifiable/Attainment.\nHinds County Unclassifiable/Attainment.\nHolmes County Unclassifiable/Attainment.\nHumphreys County Unclassifiable/Attainment.\nIssaquena County Unclassifiable/Attainment.\nItawamba County Unclassifiable/Attainment.\nJackson County Unclassifiable/Attainment.\nJasper County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nJefferson Davis County Unclassifiable/Attainment.\nJones County Unclassifiable/Attainment.\nKemper County Unclassifiable/Attainment.\nLafayette County Unclassifiable/Attainment.\nLamar County Unclassifiable/Attainment.\nLauderdale County Unclassifiable/Attainment.\nLawrence County Unclassifiable/Attainment.\nLeake County Unclassifiable/Attainment.\nLee County Unclassifiable/Attainment.\nLeflore County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nLowndes County Unclassifiable/Attainment.\nMadison County Unclassifiable/Attainment.\nMarion County Unclassifiable/Attainment.\nMarshall County Unclassifiable/Attainment.\nMonroe County Unclassifiable/Attainment.\nMontgomery County Unclassifiable/Attainment.\nNeshoba County Unclassifiable/Attainment.\nNewton County Unclassifiable/Attainment.\nNoxubee County Unclassifiable/Attainment.\nOktibbeha County Unclassifiable/Attainment.\nPanola County Unclassifiable/Attainment.\nPearl River County Unclassifiable/Attainment.\nPerry County Unclassifiable/Attainment.\nPike County Unclassifiable/Attainment.\nPontotoc County Unclassifiable/Attainment.\nPrentiss County Unclassifiable/Attainment.\nQuitman County Unclassifiable/Attainment.\nRankin County Unclassifiable/Attainment.\nScott County Unclassifiable/Attainment.\nSharkey County Unclassifiable/Attainment.\nSimpson County Unclassifiable/Attainment.\nSmith County Unclassifiable/Attainment.\nStone County Unclassifiable/Attainment.\nSunflower County Unclassifiable/Attainment.\nTallahatchie County Unclassifiable/Attainment.\nTate County Unclassifiable/Attainment.\nTippah County Unclassifiable/Attainment.\nTishomingo County Unclassifiable/Attainment.\nTunica County Unclassifiable/Attainment.\nUnion County Unclassifiable/Attainment.\nWalthall County Unclassifiable/Attainment.\nWarren County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nWayne County Unclassifiable/Attainment.\nWebster County Unclassifiable/Attainment.\nWilkinson County Unclassifiable/Attainment.\nWinston County Unclassifiable/Attainment.\nYalobusha County Unclassifiable/Attainment.\nYazoo 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.\nMississippi—2006 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nStatewide:\nAdams County Unclassifiable/Attainment.\nAlcorn County Unclassifiable/Attainment.\nAmite County Unclassifiable/Attainment.\nAttala County Unclassifiable/Attainment.\nBenton County Unclassifiable/Attainment.\nBolivar County Unclassifiable/Attainment.\nCalhoun County Unclassifiable/Attainment.\nCarroll County Unclassifiable/Attainment.\nChickasaw County Unclassifiable/Attainment.\nChoctaw County Unclassifiable/Attainment.\nClaiborne County Unclassifiable/Attainment.\nClarke County Unclassifiable/Attainment.\nClay County Unclassifiable/Attainment.\nCoahoma County Unclassifiable/Attainment.\nCopiah County Unclassifiable/Attainment.\nCovington County Unclassifiable/Attainment.\nDeSoto County Unclassifiable/Attainment.\nForrest County Unclassifiable/Attainment.\nFranklin County Unclassifiable/Attainment.\nGeorge County Unclassifiable/Attainment.\nGreene County Unclassifiable/Attainment.\nGrenada County Unclassifiable/Attainment.\nHancock County Unclassifiable/Attainment.\nHarrison County Unclassifiable/Attainment.\nHinds County Unclassifiable/Attainment.\nHolmes County Unclassifiable/Attainment.\nHumphreys County Unclassifiable/Attainment.\nIssaquena County Unclassifiable/Attainment.\nItawamba County Unclassifiable/Attainment.\nJackson County Unclassifiable/Attainment.\nJasper County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nJefferson Davis County Unclassifiable/Attainment.\nJones County Unclassifiable/Attainment.\nKemper County Unclassifiable/Attainment.\nLafayette County Unclassifiable/Attainment.\nLamar County Unclassifiable/Attainment.\nLauderdale County Unclassifiable/Attainment.\nLawrence County Unclassifiable/Attainment.\nLeake County Unclassifiable/Attainment.\nLee County Unclassifiable/Attainment.\nLeflore County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nLowndes County Unclassifiable/Attainment.\nMadison County Unclassifiable/Attainment.\nMarion County Unclassifiable/Attainment.\nMarshall County Unclassifiable/Attainment.\nMonroe County Unclassifiable/Attainment.\nMontgomery County Unclassifiable/Attainment.\nNeshoba County Unclassifiable/Attainment.\nNewton County Unclassifiable/Attainment.\nNoxubee County Unclassifiable/Attainment.\nOktibbeha County Unclassifiable/Attainment.\nPanola County Unclassifiable/Attainment.\nPearl River County Unclassifiable/Attainment.\nPerry County Unclassifiable/Attainment.\nPike County Unclassifiable/Attainment.\nPontotoc County Unclassifiable/Attainment.\nPrentiss County Unclassifiable/Attainment.\nQuitman County Unclassifiable/Attainment.\nRankin County Unclassifiable/Attainment.\nScott County Unclassifiable/Attainment.\nSharkey County Unclassifiable/Attainment.\nSimpson County Unclassifiable/Attainment.\nSmith County Unclassifiable/Attainment.\nStone County Unclassifiable/Attainment.\nSunflower County Unclassifiable/Attainment.\nTallahatchie County Unclassifiable/Attainment.\nTate County Unclassifiable/Attainment.\nTippah County Unclassifiable/Attainment.\nTishomingo County Unclassifiable/Attainment.\nTunica County Unclassifiable/Attainment.\nUnion County Unclassifiable/Attainment.\nWalthall County Unclassifiable/Attainment.\nWarren County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nWayne County Unclassifiable/Attainment.\nWebster County Unclassifiable/Attainment.\nWilkinson County Unclassifiable/Attainment.\nWinston County Unclassifiable/Attainment.\nYalobusha County Unclassifiable/Attainment.\nYazoo 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.\nMississippi—NO2 (1971 Annual Standard)\nDesignated area Does not meet primary standards Cannot be classified or better than national standards\nStatewide X\nMississippi—NO2 (2010 1-Hour Standard)\nDesignated area Designation a\nDate 1 Type\nAdams County Unclassifiable/Attainment.\nAlcorn County Unclassifiable/Attainment.\nAmite County Unclassifiable/Attainment.\nAttala County Unclassifiable/Attainment.\nBenton County Unclassifiable/Attainment.\nBolivar County Unclassifiable/Attainment.\nCalhoun County Unclassifiable/Attainment.\nCarroll County Unclassifiable/Attainment.\nChickasaw County Unclassifiable/Attainment.\nChoctaw County Unclassifiable/Attainment.\nClaiborne County Unclassifiable/Attainment.\nClarke County Unclassifiable/Attainment.\nClay County Unclassifiable/Attainment.\nCoahoma County Unclassifiable/Attainment.\nCopiah County Unclassifiable/Attainment.\nCovington County Unclassifiable/Attainment.\nDeSoto County Unclassifiable/Attainment.\nForrest County Unclassifiable/Attainment.\nFranklin County Unclassifiable/Attainment.\nGeorge County Unclassifiable/Attainment.\nGreene County Unclassifiable/Attainment.\nGrenada County Unclassifiable/Attainment.\nHancock County Unclassifiable/Attainment.\nHarrison County Unclassifiable/Attainment.\nHinds County Unclassifiable/Attainment.\nHolmes County Unclassifiable/Attainment.\nHumphreys County Unclassifiable/Attainment.\nIssaquena County Unclassifiable/Attainment.\nItawamba County Unclassifiable/Attainment.\nJackson County Unclassifiable/Attainment.\nJasper County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nJefferson Davis County Unclassifiable/Attainment.\nJones County Unclassifiable/Attainment.\nKemper County Unclassifiable/Attainment.\nLafayette County Unclassifiable/Attainment.\nLamar County Unclassifiable/Attainment.\nLauderdale County Unclassifiable/Attainment.\nLawrence County Unclassifiable/Attainment.\nLeake County Unclassifiable/Attainment.\nLee County Unclassifiable/Attainment.\nLeflore County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nLowndes County Unclassifiable/Attainment.\nMadison County Unclassifiable/Attainment.\nMarion County Unclassifiable/Attainment.\nMarshall County Unclassifiable/Attainment.\nMonroe County Unclassifiable/Attainment.\nMontgomery County Unclassifiable/Attainment.\nNeshoba County Unclassifiable/Attainment.\nNewton County Unclassifiable/Attainment.\nNoxubee County Unclassifiable/Attainment.\nOktibbeha County Unclassifiable/Attainment.\nPanola County Unclassifiable/Attainment.\nPearl River County Unclassifiable/Attainment.\nPerry County Unclassifiable/Attainment.\nPike County Unclassifiable/Attainment.\nPontotoc County Unclassifiable/Attainment.\nPrentiss County Unclassifiable/Attainment.\nQuitman County Unclassifiable/Attainment.\nRankin County Unclassifiable/Attainment.\nScott County Unclassifiable/Attainment.\nSharkey County Unclassifiable/Attainment.\nSimpson County Unclassifiable/Attainment.\nSmith County Unclassifiable/Attainment.\nStone County Unclassifiable/Attainment.\nSunflower County Unclassifiable/Attainment.\nTallahatchie County Unclassifiable/Attainment.\nTate County Unclassifiable/Attainment.\nTippah County Unclassifiable/Attainment.\nTishomingo County Unclassifiable/Attainment.\nTunica County Unclassifiable/Attainment.\nUnion County Unclassifiable/Attainment.\nWalthall County Unclassifiable/Attainment.\nWarren County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nWayne County Unclassifiable/Attainment.\nWebster County Unclassifiable/Attainment.\nWilkinson County Unclassifiable/Attainment.\nWinston County Unclassifiable/Attainment.\nYalobusha County Unclassifiable/Attainment.\nYazoo 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.\nMississippi—1997 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation a Category/classification\nDate 1 Type Date 1 Type\nStatewide Unclassifiable/Attainment.\nAdams County\nAlcorn County\nAmite County\nAttala County\nBenton County\nBolivar County\nCalhoun County\nCarroll County\nChickasaw County\nChoctaw County\nClaiborne County\nClarke County\nClay County\nCoahoma County\nCopiah County\nCovington County\nDeSoto County\nForrest County\nFranklin County\nGeorge County\nGreene County\nGrenada County\nHancock County\nHarrison County\nHinds County\nHolmes County\nHumphreys County\nIssaquena County\nItawamba County\nJackson County\nJasper County\nJefferson County\nJefferson Davis County\nJones County\nKemper County\nLafayette County\nLamar County\nLauderdale County\nLawrence County\nLeake County\nLee County\nLeflore County\nLincoln County\nLowndes County\nMadison County\nMarion County\nMarshall County\nMonroe County\nMontgomery County\nNeshoba County\nNewton County\nNoxubee County\nOktibbeha County\nPanola County\nPearl River County\nPerry County\nPike County\nPontotoc County\nPrentiss County\nQuitman County\nRankin County\nScott County\nSharkey County\nSimpson County\nSmith County\nStone County\nSunflower County\nTallahatchie County\nTate County\nTippah County\nTishomingo County\nTunica County\nUnion County\nWalthall County\nWarren County\nWashington County\nWayne County\nWebster County\nWilkinson County\nWinston County\nYalobusha County\nYazoo 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.\nMississippi—2008 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation Classification\nDate1 Type Date1 Type\nMemphis, TN-MS-AR: 2\nDeSoto County (part) Portion along MPO Lines 4/8/2016 Attainment\nRest of State: 3\nAdams County Unclassifiable/Attainment\nAlcorn County Unclassifiable/Attainment\nAmite County Unclassifiable/Attainment\nAttala County Unclassifiable/Attainment\nBenton County Unclassifiable/Attainment\nBolivar County Unclassifiable/Attainment\nCalhoun County Unclassifiable/Attainment\nCarroll County Unclassifiable/Attainment\nChickasaw County Unclassifiable/Attainment\nChoctaw County Unclassifiable/Attainment\nClaiborne County Unclassifiable/Attainment\nClarke County Unclassifiable/Attainment\nClay County Unclassifiable/Attainment.\nCoahoma County Unclassifiable/Attainment\nCopiah County Unclassifiable/Attainment\nCovington County Unclassifiable/Attainment\nDeSoto County (remainder) Unclassifiable/Attainment\nForrest County Unclassifiable/Attainment\nFranklin County Unclassifiable/Attainment\nGeorge County Unclassifiable/Attainment\nGreene County Unclassifiable/Attainment\nGrenada County Unclassifiable/Attainment\nHancock County Unclassifiable/Attainment\nHarrison County Unclassifiable/Attainment\nHinds County Unclassifiable/Attainment\nHolmes County Unclassifiable/Attainment\nHumphreys County Unclassifiable/Attainment\nIssaquena County Unclassifiable/Attainment\nItawamba County Unclassifiable/Attainment\nJackson County Unclassifiable/Attainment\nJasper County Unclassifiable/Attainment\nJefferson County Unclassifiable/Attainment\nJefferson Davis County Unclassifiable/Attainment\nJones County Unclassifiable/Attainment\nKemper County Unclassifiable/Attainment\nLafayette County Unclassifiable/Attainment\nLamar County Unclassifiable/Attainment\nLauderdale County Unclassifiable/Attainment\nLawrence County Unclassifiable/Attainment\nLeake County Unclassifiable/Attainment\nLee County Unclassifiable/Attainment\nLeflore County Unclassifiable/Attainment\nLincoln County Unclassifiable/Attainment\nLowndes County Unclassifiable/Attainment\nMadison County Unclassifiable/Attainment\nMarion County Unclassifiable/Attainment\nMarshall County Unclassifiable/Attainment\nMonroe County Unclassifiable/Attainment\nMontgomery County Unclassifiable/Attainment\nNeshoba County Unclassifiable/Attainment\nNewton County Unclassifiable/Attainment\nNoxubee County Unclassifiable/Attainment\nOktibbeha County Unclassifiable/Attainment\nPanola County Unclassifiable/Attainment\nPearl River County Unclassifiable/Attainment\nPerry County Unclassifiable/Attainment\nPike County Unclassifiable/Attainment\nPontotoc County Unclassifiable/Attainment\nPrentiss County Unclassifiable/Attainment\nQuitman County Unclassifiable/Attainment\nRankin County Unclassifiable/Attainment\nScott County Unclassifiable/Attainment\nSharkey County Unclassifiable/Attainment\nSimpson County Unclassifiable/Attainment\nSmith County Unclassifiable/Attainment\nStone County Unclassifiable/Attainment\nSunflower County Unclassifiable/Attainment\nTallahatchie County Unclassifiable/Attainment\nTate County. Unclassifiable/Attainment\nTippah County Unclassifiable/Attainment\nTishomingo County Unclassifiable/Attainment\nTunica County Unclassifiable/Attainment\nUnion County Unclassifiable/Attainment\nWalthall County Unclassifiable/Attainment\nWarren County Unclassifiable/Attainment\nWashington County Unclassifiable/Attainment\nWayne County Unclassifiable/Attainment\nWebster County Unclassifiable/Attainment\nWilkinson County Unclassifiable/Attainment\nWinston County Unclassifiable/Attainment\nYalobusha County Unclassifiable/Attainment\nYazoo County Unclassifiable/Attainment\n1 This date is July 20, 2012, unless otherwise noted.\n2 Excludes Indian country located in each area, unless otherwise noted.\n3 Includes any Indian country in each county or area, unless otherwise specified.\nMississippi—2015 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area 1 Designation Classification\nDate 2 Type Date Type\nAdams County Attainment/Unclassifiable\nAlcorn County Attainment/Unclassifiable\nAmite County Attainment/Unclassifiable\nAttala County Attainment/Unclassifiable\nBenton County Attainment/Unclassifiable\nBolivar County Attainment/Unclassifiable\nCalhoun County Attainment/Unclassifiable\nCarroll County Attainment/Unclassifiable\nChickasaw County Attainment/Unclassifiable\nChoctaw County Attainment/Unclassifiable\nClaiborne County Attainment/Unclassifiable\nClarke County Attainment/Unclassifiable\nClay County Attainment/Unclassifiable\nCoahoma County Attainment/Unclassifiable\nCopiah County Attainment/Unclassifiable\nCovington County Attainment/Unclassifiable\nDeSoto County Attainment/Unclassifiable\nForrest County Attainment/Unclassifiable\nFranklin County Attainment/Unclassifiable\nGeorge County Attainment/Unclassifiable\nGreene County Attainment/Unclassifiable\nGrenada County Attainment/Unclassifiable\nHancock County Attainment/Unclassifiable\nHarrison County Attainment/Unclassifiable\nHinds County Attainment/Unclassifiable\nHolmes County Attainment/Unclassifiable\nHumphreys County Attainment/Unclassifiable\nIssaquena County Attainment/Unclassifiable\nItawamba County Attainment/Unclassifiable\nJackson County Attainment/Unclassifiable\nJasper County Attainment/Unclassifiable\nJefferson County Attainment/Unclassifiable\nJefferson Davis County Attainment/Unclassifiable\nJones County Attainment/Unclassifiable\nKemper County Attainment/Unclassifiable\nLafayette County Attainment/Unclassifiable\nLamar County Attainment/Unclassifiable\nLauderdale County Attainment/Unclassifiable\nLawrence County Attainment/Unclassifiable\nLeake County Attainment/Unclassifiable\nLee County Attainment/Unclassifiable\nLeflore County Attainment/Unclassifiable\nLincoln County Attainment/Unclassifiable\nLowndes County Attainment/Unclassifiable\nMadison County Attainment/Unclassifiable\nMarion County Attainment/Unclassifiable\nMarshall County Attainment/Unclassifiable\nMonroe County Attainment/Unclassifiable\nMontgomery County Attainment/Unclassifiable\nNeshoba County Attainment/Unclassifiable\nNewton County Attainment/Unclassifiable\nNoxubee County Attainment/Unclassifiable\nOktibbeha County Attainment/Unclassifiable\nPanola County Attainment/Unclassifiable\nPearl River County Attainment/Unclassifiable\nPerry County Attainment/Unclassifiable\nPike County Attainment/Unclassifiable\nPontotoc County Attainment/Unclassifiable\nPrentiss County Attainment/Unclassifiable\nQuitman County Attainment/Unclassifiable\nRankin County Attainment/Unclassifiable\nScott County Attainment/Unclassifiable\nSharkey County Attainment/Unclassifiable\nSimpson County Attainment/Unclassifiable\nSmith County Attainment/Unclassifiable\nStone County Attainment/Unclassifiable\nSunflower County Attainment/Unclassifiable\nTallahatchie County Attainment/Unclassifiable\nTate County Attainment/Unclassifiable\nTippah County Attainment/Unclassifiable\nTishomingo County Attainment/Unclassifiable\nTunica County Attainment/Unclassifiable\nUnion County Attainment/Unclassifiable\nWalthall County Attainment/Unclassifiable\nWarren County Attainment/Unclassifiable\nWashington County Attainment/Unclassifiable\nWayne County Attainment/Unclassifiable\nWebster County Attainment/Unclassifiable\nWilkinson County Attainment/Unclassifiable\nWinston County Attainment/Unclassifiable\nYalobusha County Attainment/Unclassifiable\nYazoo 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 January 16, 2018, unless otherwise noted.\nMississippi—2008 Lead NAAQS\nDesignated area Designation for the 2008 NAAQS a\nDate 1 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":"75fa6a234c875387cb7044f261547ee02c76bdf31c627905bea110bee5e9bd22","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-81.324","next":"us/40-cfr-81.326"},"notice":"GroundRules: Original legal text. Not legal advice."}