{"data":{"id":"us/40-cfr-81.319","jurisdiction":"us","citation":"40 CFR 81.319","heading":"Louisiana.","body":"Louisiana—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 019 X\nAQCR 022 X\nAQCR 106 X\nLouisiana—2010 Sulfur Dioxide NAAQS\n[Primary]\nDesignated area 1 Designation\nDate 2 Type\nEvangeline Parish (Partial) Nonattainment.\nPortion of Evangeline Parish bounded by:\n570250m E, 3400300m N\n570250m E, 3403300m N\n572400m E, 3403300m N\n572400m E, 3400300m N\nNAD83 15R\nSt. Bernard Parish, LA 10/4/2013 Nonattainment.\nCalcasieu Parish, LA 9/12/2016 Unclassifiable.\nSt. Mary Parish Unclassifiable.\nAcadia Parish Attainment/Unclassifiable.\nAllen Parish Attainment/Unclassifiable.\nAssumption Parish Attainment/Unclassifiable.\nAvoyelles Parish Attainment/Unclassifiable.\nBeauregard Parish Attainment/Unclassifiable.\nBienville Parish Attainment/Unclassifiable.\nBossier Parish Attainment/Unclassifiable.\nCaddo Parish Attainment/Unclassifiable.\nCaldwell Parish Attainment/Unclassifiable.\nCameron Parish Attainment/Unclassifiable.\nCatahoula Parish Attainment/Unclassifiable.\nClaiborne Parish Attainment/Unclassifiable.\nConcordia Parish Attainment/Unclassifiable.\nDe Soto Parish 9/12/2016 Attainment/Unclassifiable.\nEast Baton Rouge Parish 4/30/2021 Attainment/Unclassifiable.\nEast Carroll Parish Attainment/Unclassifiable.\nEast Feliciana Parish Attainment/Unclassifiable.\nEvangeline Parish (part) (remainder) Attainment/Unclassifiable.\nFranklin Parish Attainment/Unclassifiable.\nGrant Parish Attainment/Unclassifiable.\nIberia Parish Attainment/Unclassifiable.\nIberville Parish Attainment/Unclassifiable.\nJackson Parish Attainment/Unclassifiable.\nJefferson Parish Attainment/Unclassifiable.\nJefferson Davis Parish Attainment/Unclassifiable.\nLafayette Parish Attainment/Unclassifiable.\nLafourche Parish Attainment/Unclassifiable.\nLaSalle Parish Attainment/Unclassifiable.\nLincoln Parish Attainment/Unclassifiable.\nLivingston Parish Attainment/Unclassifiable.\nMadison Parish Attainment/Unclassifiable.\nMorehouse Parish Attainment/Unclassifiable.\nNatchitoches Parish Attainment/Unclassifiable.\nOrleans Parish Attainment/Unclassifiable.\nOuachita Parish Attainment/Unclassifiable.\nPlaquemines Parish Attainment/Unclassifiable.\nPoint Coupee Attainment/Unclassifiable.\nRapides Parish Attainment/Unclassifiable.\nRed River Parish Attainment/Unclassifiable.\nRichland Parish Attainment/Unclassifiable.\nSabine Parish Attainment/Unclassifiable.\nSt. Charles Parish 4/30/2021 Attainment/Unclassifiable.\nSt. Helena Parish Attainment/Unclassifiable.\nSt. James Parish 4/30/2021 Attainment/Unclassifiable.\nSt. John the Baptist Parish Attainment/Unclassifiable.\nSt. Landry Parish Attainment/Unclassifiable.\nSt. Martin Parish Attainment/Unclassifiable.\nSt. Mary Parish Attainment/Unclassifiable.\nSt. Tammany Parish Attainment/Unclassifiable.\nTangipahoa Parish Attainment/Unclassifiable.\nTensas Parish Attainment/Unclassifiable.\nTerrebonne Parish Attainment/Unclassifiable.\nUnion Parish Attainment/Unclassifiable.\nVermilion Parish Attainment/Unclassifiable.\nVernon Parish Attainment/Unclassifiable.\nWashington Parish Attainment/Unclassifiable.\nWebster Parish Attainment/Unclassifiable.\nWest Baton Rouge Parish 4/30/2021 Attainment/Unclassifiable.\nWest Carroll Parish Attainment/Unclassifiable.\nWinn Parish 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.\nLouisiana—Carbon Monoxide\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nAQCR 019 Monroe-El Dorado Interstate Unclassifiable/Attainment\nCaldwell Parish\nCatahoula Parish\nConcordia Parish\nEast Carroll Parish\nFranklin Parish\nGrant Parish\nLa Salle Parish\nMadison Parish\nMorehouse Parish\nOuachita Parish\nRichland Parish\nTensas Parish\nUnion Parish\nWest Carroll Parish\nAQCR 022 Shreveport-Texarkana-Tyler Interstate Unclassifiable/Attainment\nAvoyelles Parish\nBienville Parish\nBossier Parish\nCaddo Parish\nClaiborne Parish\nDe Soto Parish\nJackson Parish\nLincoln Parish\nNatchitoches Parish\nRapides Parish\nRed River Parish\nSabine Parish\nVernon Parish\nWebster Parish\nWinn Parish\nAQCR 106 Southern Louisiana-Southeast Texas Interstate Unclassifiable/Attainment\nAcadia Parish\nAllen Parish\nAscension Parish\nAssumption Parish\nBeauregard Parish\nCalcasieu Parish\nCameron Parish\nEast Baton Rouge Parish\nEast Feliciana Parish\nEvangeline Parish\nIberia Parish\nIberville Parish\nJefferson Davis Parish\nJefferson Parish\nLafayette Parish\nLafourche Parish\nLivingston Parish\nOrleans Parish\nPlaquemines Parish\nPointe Coupee Parish\nSt. Bernard Parish\nSt. Charles Parish\nSt. Helena Parish\nSt. James Parish\nSt. John the Baptist Parish\nSt. Landry Parish\nSt. Martin Parish\nSt. Mary Parish\nSt. Tammany Parish\nTangipahoa Parish\nTerrebonne Parish\nVermilion Parish\nWashington Parish\nWest Baton Route Parish\nWest Feliciana Parish\n1 This date is November 15, 1990, unless otherwise noted.\nLouisiana—1978 Lead NAAQS.\nDesignated area Designation Classification\nDate Type Date Type\nEast Baton Rouge Parish 1/6/1992 Unclassifiable\nRest of State Not Designated\nLouisiana—Ozone (1-Hour Standard)2\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nBaton Rouge Area:\nAscension Parish 11/15/1990 Nonattainment 6/23/2003 Severe.\nEast Baton Rouge Parish 11/15/1990 Nonattainment 6/23/2003 Severe.\nIberville Parish 11/15/1990 Nonattainment 6/23/2003 Severe.\nLivingston Parish 11/15/1990 Nonattainment 6/23/2003 Severe.\nWest Baton Rouge Parish 11/15/1990 Nonattainment 6/23/2003 Severe.\nBeauregard Parish Area:\nBeauregard Parish Attainment\nGrant Parish Area:\nGrant Parish Attainment\nLafayette Area:\nLafayette Parish Attainment\nLafourche Parish Area:\nLafourche Parish 2/25/2002 Attainment\nLake Charles Area:\nCalcasieu Parish Attainment\nNew Orleans Area:\nJefferson Parish Attainment\nOrleans Parish Attainment\nSt. Bernard Parish Attainment\nSt. Charles Parish Attainment\nPointe Coupee Area:\nPointe Coupee Parish Attainment\nSt. James Parish Area:\nSt. James Parish Attainment\nSt. Mary Parish Area:\nSt. Mary Parish Attainment\nAQCR 019 Monroe-El Dorado Interstate Unclassifiable/Attainment\nCaldwell Parish\nCatahoula Parish\nConcordia Parish\nEast Carroll Parish\nFranklin Parish\nLa Salle Parish\nMadison Parish\nMorehouse Parish\nOuachita Parish\nRichland Parish\nTensas Parish\nUnion Parish\nWest Carroll Parish\nAQCR 022 Shreveport-Texarkana-Tyler Interstate Unclassifiable/Attainment\nAvoyelles Parish\nBienville Parish\nBossier Parish\nCaddo Parish\nClaiborne Parish\nDe Soto Parish\nJackson Parish\nLincoln Parish\nNatchitoches Parish\nRapides Parish\nRed River Parish\nSabine Parish\nVernon Parish\nWebster Parish\nWinn Parish\nAQCR 106 Southern Louisiana-Southeast Texas Interstate Unclassifiable/Attainment\nAcadia Parish\nAllen Parish\nAssumption Parish\nCameron Parish\nEast Feliciana Parish\nEvangeline Parish\nIberia Parish\nJefferson Davis Parish\nPlaquemines Parish\nSt. Helena Parish\nSt. John the Baptist Parish\nSt. Landry Parish\nSt. Martin Parish\nSt. Tammany Parish\nTangipahoa Parish\nTerrebonne Parish\nVermilion Parish\nWashington Parish\nWest Feliciana Parish\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 Louisiana. The Lafayette, Lake Charles, New Orleans, Pointe Coupee Parish, Beauregard Par, Grant Par, LaFourche Par, St James Par, and St Mary Par areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.\nLouisiana—1997 Annual PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 019 Monroe-El Dorado Interstate:\nCaldwell Parish Unclassifiable/Attainment.\nCatahoula Parish Unclassifiable/Attainment.\nConcordia Parish Unclassifiable/Attainment.\nEast Carroll Parish Unclassifiable/Attainment.\nFranklin Parish Unclassifiable/Attainment.\nLa Salle Parish Unclassifiable/Attainment.\nMadison Parish Unclassifiable/Attainment.\nMorehouse Parish Unclassifiable/Attainment.\nOuachita Parish Unclassifiable/Attainment.\nRichland Parish Unclassifiable/Attainment.\nTensas Parish Unclassifiable/Attainment.\nUnion Parish Unclassifiable/Attainment.\nWest Carroll Parish Unclassifiable/Attainment.\nAQCR 022 Shreveport-Texarkana-Tyler Interstate: Unclassifiable/Attainment.\nBienville Parish Unclassifiable/Attainment.\nBossier Parish Unclassifiable/Attainment.\nCaddo Parish Unclassifiable/Attainment.\nClaiborne Parish Unclassifiable/Attainment.\nDe Soto Parish Unclassifiable/Attainment.\nJackson Parish Unclassifiable/Attainment.\nLincoln Parish Unclassifiable/Attainment.\nNatchitoches Parish Unclassifiable/Attainment.\nRed River Parish Unclassifiable/Attainment.\nSabine Parish Unclassifiable/Attainment.\nWebster Parish Unclassifiable/Attainment.\nWinn Parish Unclassifiable/Attainment.\nAQCR 106 S. Louisiana-S.E. Texas Interstate: Unclassifiable/Attainment.\nAcadia Parish Unclassifiable/Attainment.\nAllen Parish Unclassifiable/Attainment.\nAscension Parish Unclassifiable/Attainment.\nAssumption Parish Unclassifiable/Attainment.\nAvoyelles Parish Unclassifiable/Attainment.\nBeauregard Parish Unclassifiable/Attainment.\nCalcasieu Parish Unclassifiable/Attainment.\nCameron Parish Unclassifiable/Attainment.\nEast Baton Rouge Parish Unclassifiable/Attainment.\nEast Feliciana Parish Unclassifiable/Attainment.\nEvangeline Parish Unclassifiable/Attainment.\nGrant Parish Unclassifiable/Attainment.\nIberia Parish Unclassifiable/Attainment.\nIberville Parish Unclassifiable/Attainment.\nJefferson Davis Parish Unclassifiable/Attainment.\nJefferson Parish Unclassifiable/Attainment.\nLafayette Parish Unclassifiable/Attainment.\nLafourche Parish Unclassifiable/Attainment.\nLivingston Parish Unclassifiable/Attainment.\nOrleans Parish Unclassifiable/Attainment.\nPlaquemines Parish Unclassifiable/Attainment.\nPointe Coupee Parish Unclassifiable/Attainment.\nRapides Parish Unclassifiable/Attainment.\nSt. Bernard Parish Unclassifiable/Attainment.\nSt. Charles Parish Unclassifiable/Attainment.\nSt. Helena Parish Unclassifiable/Attainment.\nSt. James Parish Unclassifiable/Attainment.\nSt. John the Baptist Parish Unclassifiable/Attainment.\nSt. Landry Parish Unclassifiable/Attainment.\nSt. Martin Parish Unclassifiable/Attainment.\nSt. Tammany Parish Unclassifiable/Attainment.\nTangipahoa Parish Unclassifiable/Attainment.\nTerrebonne Parish Unclassifiable/Attainment.\nVermilion Parish Unclassifiable/Attainment.\nVernon Parish Unclassifiable/Attainment.\nWashington Parish Unclassifiable/Attainment.\nWest Baton Rouge Parish Unclassifiable/Attainment.\nWest Feliciana Parish 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.\nLouisiana—2012 Annual PM2.5 NAAQS\n[Primary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nAQCR 019 Monroe-El Dorado Interstate:\nCaldwell Parish Unclassifiable/Attainment\nCatahoula Parish Unclassifiable/Attainment\nConcordia Parish Unclassifiable/Attainment\nEast Carroll Parish Unclassifiable/Attainment\nFranklin Parish Unclassifiable/Attainment\nLa Salle Parish Unclassifiable/Attainment\nMadison Parish Unclassifiable/Attainment\nMorehouse Parish Unclassifiable/Attainment\nOuachita Parish Unclassifiable/Attainment\nRichland Parish Unclassifiable/Attainment\nTensas Parish Unclassifiable/Attainment\nUnion Parish Unclassifiable/Attainment\nWest Carroll Parish Unclassifiable/Attainment\nAQCR 022 Shreveport-Texarkana-Tyler Interstate:\nBienville Parish Unclassifiable/Attainment\nBossier Parish Unclassifiable/Attainment\nCaddo Parish Unclassifiable/Attainment\nClaiborne Parish Unclassifiable/Attainment\nDe Soto Parish Unclassifiable/Attainment\nJackson Parish Unclassifiable/Attainment\nLincoln Parish Unclassifiable/Attainment\nNatchitoches Parish Unclassifiable/Attainment\nRed River Parish Unclassifiable/Attainment\nSabine Parish Unclassifiable/Attainment\nWebster Parish Unclassifiable/Attainment\nWinn Parish Unclassifiable/Attainment\nAQCR 106 S. Louisiana-S.E. Texas Interstate:\nAcadia Parish Unclassifiable/Attainment\nAllen Parish Unclassifiable/Attainment\nAscension Parish Unclassifiable/Attainment\nAssumption Parish Unclassifiable/Attainment\nAvoyelles Parish Unclassifiable/Attainment\nBeauregard Parish Unclassifiable/Attainment\nCalcasieu Parish Unclassifiable/Attainment\nCameron Parish Unclassifiable/Attainment\nEast Baton Rouge Parish Unclassifiable/Attainment\nEast Feliciana Parish Unclassifiable/Attainment\nEvangeline Parish Unclassifiable/Attainment\nGrant Parish Unclassifiable/Attainment\nIberia Parish Unclassifiable/Attainment\nIberville Parish Unclassifiable/Attainment\nJefferson Davis Parish Unclassifiable/Attainment\nJefferson Parish Unclassifiable/Attainment\nLafayette Parish Unclassifiable/Attainment\nLafourche Parish Unclassifiable/Attainment\nLivingston Parish Unclassifiable/Attainment\nOrleans Parish Unclassifiable/Attainment\nPlaquemines Parish Unclassifiable/Attainment\nPointe Coupee Parish Unclassifiable/Attainment\nRapides Parish Unclassifiable/Attainment\nSt. Bernard Parish Unclassifiable/Attainment\nSt. Charles Parish Unclassifiable/Attainment\nSt. Helena Parish Unclassifiable/Attainment\nSt. James Parish Unclassifiable/Attainment\nSt. John the Baptist Parish Unclassifiable/Attainment\nSt. Landry Parish Unclassifiable/Attainment\nSt. Martin Parish Unclassifiable/Attainment\nSt. Tammany Parish Unclassifiable/Attainment\nTangipahoa Parish Unclassifiable/Attainment\nTerrebonne Parish Unclassifiable/Attainment\nVermilion Parish Unclassifiable/Attainment\nVernon Parish Unclassifiable/Attainment\nWashington Parish Unclassifiable/Attainment\nWest Baton Rouge Parish Unclassifiable/Attainment\nWest Feliciana Parish 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.\nLouisiana—1997 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 019 Monroe-El Dorado Interstate:\nCaldwell Parish Unclassifiable/Attainment.\nCatahoula Parish Unclassifiable/Attainment.\nConcordia Parish Unclassifiable/Attainment.\nEast Carroll Parish Unclassifiable/Attainment.\nFranklin Parish Unclassifiable/Attainment.\nLa Salle Parish Unclassifiable/Attainment.\nMadison Parish Unclassifiable/Attainment.\nMorehouse Parish Unclassifiable/Attainment.\nOuachita Parish Unclassifiable/Attainment.\nRichland Parish Unclassifiable/Attainment.\nTensas Parish Unclassifiable/Attainment.\nUnion Parish Unclassifiable/Attainment.\nWest Carroll Parish Unclassifiable/Attainment.\nAQCR 022 Shreveport-Texarkana-Tyler Interstate:\nBienville Parish Unclassifiable/Attainment.\nBossier Parish Unclassifiable/Attainment.\nCaddo Parish Unclassifiable/Attainment.\nClaiborne Parish Unclassifiable/Attainment.\nDe Soto Parish Unclassifiable/Attainment.\nJackson Parish Unclassifiable/Attainment.\nLincoln Parish Unclassifiable/Attainment.\nNatchitoches Parish Unclassifiable/Attainment.\nRed River Parish Unclassifiable/Attainment.\nSabine Parish Unclassifiable/Attainment.\nWebster Parish Unclassifiable/Attainment.\nWinn Parish Unclassifiable/Attainment.\nAQCR 106 S. Louisiana-S.E. Texas Interstate:\nAcadia Parish Unclassifiable/Attainment.\nAllen Parish Unclassifiable/Attainment.\nAscension Parish Unclassifiable/Attainment.\nAssumption Parish Unclassifiable/Attainment.\nAvoyelles Parish Unclassifiable/Attainment.\nBeauregard Parish Unclassifiable/Attainment.\nCalcasieu Parish Unclassifiable/Attainment.\nCameron Parish Unclassifiable/Attainment.\nEast Baton Rouge Parish Unclassifiable/Attainment.\nEast Feliciana Parish Unclassifiable/Attainment.\nEvangeline Parish Unclassifiable/Attainment.\nGrant Parish Unclassifiable/Attainment.\nIberia Parish Unclassifiable/Attainment.\nIberville Parish Unclassifiable/Attainment.\nJefferson Davis Parish Unclassifiable/Attainment.\nJefferson Parish Unclassifiable/Attainment.\nLafayette Parish Unclassifiable/Attainment.\nLafourche Parish Unclassifiable/Attainment.\nLivingston Parish Unclassifiable/Attainment.\nOrleans Parish Unclassifiable/Attainment.\nPlaquemines Parish Unclassifiable/Attainment.\nPointe Coupee Parish Unclassifiable/Attainment.\nRapides Parish Unclassifiable/Attainment.\nSt. Bernard Parish Unclassifiable/Attainment.\nSt. Charles Parish Unclassifiable/Attainment.\nSt. Helena Parish Unclassifiable/Attainment.\nSt. James Parish Unclassifiable/Attainment.\nSt. John the Baptist Parish Unclassifiable/Attainment.\nSt. Landry Parish Unclassifiable/Attainment.\nSt. Martin Parish Unclassifiable/Attainment.\nSt. Tammany Parish Unclassifiable/Attainment.\nTangipahoa Parish Unclassifiable/Attainment.\nTerrebonne Parish Unclassifiable/Attainment.\nVermilion Parish Unclassifiable/Attainment.\nVernon Parish Unclassifiable/Attainment.\nWashington Parish Unclassifiable/Attainment.\nWest Baton Rouge Parish Unclassifiable/Attainment.\nWest Feliciana Parish 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.\nLouisiana—2006 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 019 Monroe-El Dorado Interstate:\nCaldwell Parish Unclassifiable/Attainment.\nCatahoula Parish Unclassifiable/Attainment.\nConcordia Parish Unclassifiable/Attainment.\nEast Carroll Parish Unclassifiable/Attainment.\nFranklin Parish Unclassifiable/Attainment.\nLa Salle Parish Unclassifiable/Attainment.\nMadison Parish Unclassifiable/Attainment.\nMorehouse Parish Unclassifiable/Attainment.\nOuachita Parish Unclassifiable/Attainment.\nRichland Parish Unclassifiable/Attainment.\nTensas Parish Unclassifiable/Attainment.\nUnion Parish Unclassifiable/Attainment.\nWest Carroll Parish Unclassifiable/Attainment.\nAQCR 022 Shreveport-Texarkana-Tyler Interstate:\nBienville Parish Unclassifiable/Attainment.\nBossier Parish Unclassifiable/Attainment.\nCaddo Parish Unclassifiable/Attainment.\nClaiborne Parish Unclassifiable/Attainment.\nDe Soto Parish Unclassifiable/Attainment.\nJackson Parish Unclassifiable/Attainment.\nLincoln Parish Unclassifiable/Attainment.\nNatchitoches Parish Unclassifiable/Attainment.\nRed River Parish Unclassifiable/Attainment.\nSabine Parish Unclassifiable/Attainment.\nWebster Parish Unclassifiable/Attainment.\nWinn Parish Unclassifiable/Attainment.\nAQCR 106 S. Louisiana-S.E. Texas Interstate:\nAcadia Parish Unclassifiable/Attainment.\nAllen Parish Unclassifiable/Attainment.\nAscension Parish Unclassifiable/Attainment.\nAssumption Parish Unclassifiable/Attainment.\nAvoyelles Parish Unclassifiable/Attainment.\nBeauregard Parish Unclassifiable/Attainment.\nCalcasieu Parish Unclassifiable/Attainment.\nCameron Parish Unclassifiable/Attainment.\nEast Baton Rouge Parish Unclassifiable/Attainment.\nEast Feliciana Parish Unclassifiable/Attainment.\nEvangeline Parish Unclassifiable/Attainment.\nGrant Parish Unclassifiable/Attainment.\nIberia Parish Unclassifiable/Attainment.\nIberville Parish Unclassifiable/Attainment.\nJefferson Davis Parish Unclassifiable/Attainment.\nJefferson Parish Unclassifiable/Attainment.\nLafayette Parish Unclassifiable/Attainment.\nLafourche Parish Unclassifiable/Attainment.\nLivingston Parish Unclassifiable/Attainment.\nOrleans Parish Unclassifiable/Attainment.\nPlaquemines Parish Unclassifiable/Attainment.\nPointe Coupee Parish Unclassifiable/Attainment.\nRapides Parish Unclassifiable/Attainment.\nSt. Bernard Parish Unclassifiable/Attainment.\nSt. Charles Parish Unclassifiable/Attainment.\nSt. Helena Parish Unclassifiable/Attainment.\nSt. James Parish Unclassifiable/Attainment.\nSt. John the Baptist Parish Unclassifiable/Attainment.\nSt. Landry Parish Unclassifiable/Attainment.\nSt. Martin Parish Unclassifiable/Attainment.\nSt. Tammany Parish Unclassifiable/Attainment.\nTangipahoa Parish Unclassifiable/Attainment.\nTerrebonne Parish Unclassifiable/Attainment.\nVermilion Parish Unclassifiable/Attainment.\nVernon Parish Unclassifiable/Attainment.\nWashington Parish Unclassifiable/Attainment.\nWest Baton Rouge Parish Unclassifiable/Attainment.\nWest Feliciana Parish 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.\nLouisiana—NO2 (1971 Annual Standard)\nDesignated area Does not meet primary standards Cannot be classified or better than national standards\nAQCR 019 X\nAQCR 022 X\nAQCR 106 X\nLouisiana—NO2 (2010 1-Hour Standard)\nDesignated area Designation a\nDate 1 Type\nAcadia Parish Unclassifiable/Attainment.\nAllen Parish Unclassifiable/Attainment.\nAscension Parish Unclassifiable/Attainment.\nAssumption Parish Unclassifiable/Attainment.\nAvoyelles Parish Unclassifiable/Attainment.\nBeauregard Parish Unclassifiable/Attainment.\nBienville Parish Unclassifiable/Attainment.\nBossier Parish Unclassifiable/Attainment.\nCaddo Parish Unclassifiable/Attainment.\nCalcasieu Parish Unclassifiable/Attainment.\nCaldwell Parish Unclassifiable/Attainment.\nCameron Parish Unclassifiable/Attainment.\nCatahoula Parish Unclassifiable/Attainment.\nClaiborne Parish Unclassifiable/Attainment.\nConcordia Parish Unclassifiable/Attainment.\nDe Soto Parish Unclassifiable/Attainment.\nEast Baton Rouge Parish Unclassifiable/Attainment.\nEast Carroll Parish Unclassifiable/Attainment.\nEast Feliciana Parish Unclassifiable/Attainment.\nEvangeline Parish Unclassifiable/Attainment.\nFranklin Parish Unclassifiable/Attainment.\nGrant Parish Unclassifiable/Attainment.\nIberia Parish Unclassifiable/Attainment.\nIberville Parish Unclassifiable/Attainment.\nJackson Parish Unclassifiable/Attainment.\nJefferson Davis Parish Unclassifiable/Attainment.\nJefferson Parish Unclassifiable/Attainment.\nLa Salle Parish Unclassifiable/Attainment.\nLafayette Parish Unclassifiable/Attainment.\nLafourche Parish Unclassifiable/Attainment.\nLincoln Parish Unclassifiable/Attainment.\nLivingston Parish Unclassifiable/Attainment.\nMadison Parish Unclassifiable/Attainment.\nMorehouse Parish Unclassifiable/Attainment.\nNatchitoches Parish Unclassifiable/Attainment.\nOrleans Parish Unclassifiable/Attainment.\nOuachita Parish Unclassifiable/Attainment.\nPlaquemines Parish Unclassifiable/Attainment.\nPointe Coupee Parish Unclassifiable/Attainment.\nRapides Parish Unclassifiable/Attainment.\nRed River Parish Unclassifiable/Attainment.\nRichland Parish Unclassifiable/Attainment.\nSabine Parish Unclassifiable/Attainment.\nSt. Bernard Parish Unclassifiable/Attainment.\nSt. Charles Parish Unclassifiable/Attainment.\nSt. Helena Parish Unclassifiable/Attainment.\nSt. James Parish Unclassifiable/Attainment.\nSt. John the Baptist Parish Unclassifiable/Attainment.\nSt. Landry Parish Unclassifiable/Attainment.\nSt. Martin Parish Unclassifiable/Attainment.\nSt. Tammany Parish Unclassifiable/Attainment.\nTangipahoa Parish Unclassifiable/Attainment.\nTerrebonne Parish Unclassifiable/Attainment.\nTensas Parish Unclassifiable/Attainment.\nVermilion Parish Unclassifiable/Attainment.\nVernon Parish Unclassifiable/Attainment.\nUnion Parish Unclassifiable/Attainment.\nWashington Parish Unclassifiable/Attainment.\nWebster Parish Unclassifiable/Attainment.\nWest Baton Rouge Parish Unclassifiable/Attainment.\nWest Carroll Parish Unclassifiable/Attainment.\nWest Feliciana Parish Unclassifiable/Attainment.\nWinn Parish 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.\nLouisiana—PM-10\nDesignated area Designation Classification\nDate Type Date Type\nAQCR 019 11/15/1990 Unclassifiable\nAQCR 022 11/15/1990 Unclassifiable\nAQCR 106 11/15/1990 Unclassifiable\nLouisiana—1997 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation a Category/classification\nDate 1 Type Date 1 Type\nBaton Rouge Area:\nAscension Parish (2) Attainment\nEast Baton Rouge Parish (2) Attainment\nIberville Parish (2) Attainment\nLivingston Parish (2) Attainment\nWest Baton Rouge Parish (2) Attainment\nBeauregard Parish Area, LA:\nBeauregard Parish Unclassifiable/Attainment\nGrant Parish Area:\nGrant Parish Unclassifiable/Attainment\nLafayette Area:\nLafayette Parish Unclassifiable/Attainment\nLafourche Parish Area:\nLafourche Parish Unclassifiable/Attainment\nLake Charles Area:\nCalcasieu Parish Unclassifiable/Attainment\nNew Orleans Area:\nJefferson Parish Unclassifiable/Attainment\nOrleans Parish Unclassifiable/Attainment\nSt. Bernard Parish Unclassifiable/Attainment\nSt. Charles Parish Unclassifiable/Attainment\nPointe Coupee Area:\nPointe Coupee Parish Unclassifiable/Attainment\nSt. James Parish Area:\nSt. James Parish Unclassifiable/Attainment\nSt. Mary Parish Area:\nSt. Mary Parish Unclassifiable/Attainment\nAQCR 019 Monroe-El Dorado Interstate Unclassifiable/Attainment\nCaldwell Parish\nCatahoula Parish\nConcordia Parish\nEast Carroll Parish\nFranklin Parish\nLa Salle Parish\nMadison Parish\nMorehouse Parish\nOuachita Parish\nRichland Parish\nTensas Parish\nUnion Parish\nWest Carroll Parish\nAQCR 022 Shreveport-Texarkana-Tyler Interstate Unclassifiable/Attainment\nBienville Parish\nBossier Parish\nCaddo Parish\nClaiborne Parish\nDe Soto Parish\nJackson Parish\nLincoln Parish\nNatchitoches Parish\nRed River Parish\nSabine Parish\nWebster Parish\nWinn Parish\nAQCR 106 S. Louisiana-S.E. Texas Interstate:\nSt. John the Baptist Parish Unclassifiable/Attainment\nAQCR 106 S. Louisiana-S.E. Texas Interstate Unclassifiable/Attainment\nAcadia Parish\nAllen Parish\nAssumption Parish\nAvoyelles Parish\nCameron Parish\nEast Feliciana Parish\nEvangeline Parish\nIberia Parish\nJefferson Davis Parish\nPlaquemines Parish\nRapides Parish\nSt. Helena Parish\nSt. Landry Parish\nSt. Martin Parish\nSt. Tammany Parish\nTangipahoa Parish\nTerrebonne Parish\nVermilion Parish\nVernon Parish\nWashington Parish\nWest Feliciana Parish\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is June 15, 2004, unless otherwise noted.\n2 Effective December 30, 2011.\nLouisiana—2008 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nBaton Rouge, LA 2 12/27/16, 81 FR 95052 Attainment 12/27/16\nAscension Parish\nEast Baton Rouge Parish\nIberville Parish\nLivingston Parish\nWest Baton Rouge Parish\nAQCR 019 Monroe-El Dorado Interstate: 3\nCaldwell Parish Unclassifiable/Attainment\nCatahoula Parish Unclassifiable/Attainment\nConcordia Parish Unclassifiable/Attainment\nEast Carroll Parish Unclassifiable/Attainment\nFranklin Parish Unclassifiable/Attainment\nLa Salle Parish Unclassifiable/Attainment\nMadison Parish Unclassifiable/Attainment\nMorehouse Parish Unclassifiable/Attainment\nOuachita Parish Unclassifiable/Attainment\nRichland Parish Unclassifiable/Attainment\nTensas Parish Unclassifiable/Attainment\nUnion Parish Unclassifiable/Attainment\nWest Carroll Parish Unclassifiable/Attainment\nAQCR 022 Shreveport-Texarkana-Tyler Interstate: 3\nBienville Parish Unclassifiable/Attainment\nBossier Parish Unclassifiable/Attainment\nCaddo Parish Unclassifiable/Attainment\nClaiborne Parish Unclassifiable/Attainment\nDe Soto Parish Unclassifiable/Attainment\nJackson Parish Unclassifiable/Attainment\nLincoln Parish Unclassifiable/Attainment\nNatchitoches Parish Unclassifiable/Attainment\nRed River Parish Unclassifiable/Attainment\nSabine Parish Unclassifiable/Attainment\nWebster Parish Unclassifiable/Attainment\nWinn Parish Unclassifiable/Attainment\nAQCR 106 S. Louisiana-SE. Texas Interstate: (remainder) 3\nAcadia Parish Unclassifiable/Attainment\nAllen Parish Unclassifiable/Attainment\nAssumption Parish Unclassifiable/Attainment\nAvoyelles Parish Unclassifiable/Attainment\nBeauregard Parish Unclassifiable/Attainment\nCalcasieu Parish Unclassifiable/Attainment\nCameron Parish Unclassifiable/Attainment\nEast Feliciana Parish Unclassifiable/Attainment\nEvangeline Parish Unclassifiable/Attainment\nGrant Parish Unclassifiable/Attainment\nIberia Parish Unclassifiable/Attainment\nJefferson Davis Parish Unclassifiable/Attainment\nJefferson Parish Unclassifiable/Attainment\nLafayette Parish Unclassifiable/Attainment\nLafourche Parish Unclassifiable/Attainment\nOrleans Parish Unclassifiable/Attainment\nPlaquemines Parish Unclassifiable/Attainment\nPointe Coupee Parish Unclassifiable/Attainment\nRapides Parish Unclassifiable/Attainment\nSt. Bernard Parish Unclassifiable/Attainment\nSt. Charles Parish Unclassifiable/Attainment\nSt. Helena Parish Unclassifiable/Attainment\nSt. James Parish Unclassifiable/Attainment\nSt. John the Baptist Parish Unclassifiable/Attainment\nSt. Landry Parish Unclassifiable/Attainment\nSt. Martin Parish Unclassifiable/Attainment\nSt. Mary Parish Unclassifiable/Attainment\nSt. Tammany Parish Unclassifiable/Attainment\nTangipahoa Parish Unclassifiable/Attainment\nTerrebonne Parish Unclassifiable/Attainment\nVermilion Parish Unclassifiable/Attainment\nVernon Parish Unclassifiable/Attainment\nWashington Parish Unclassifiable/Attainment\nWest Feliciana Parish 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.\nLouisiana—2015 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nAcadia Parish 1/16/2018 Attainment/Unclassifiable\nAllen Parish 1/16/2018 Attainment/Unclassifiable\nAscension Parish Attainment/Unclassifiable\nAssumption Parish Attainment/Unclassifiable\nAvoyelles Parish 1/16/2018 Attainment/Unclassifiable\nBeauregard Parish 1/16/2018 Attainment/Unclassifiable\nBienville Parish 1/16/2018 Attainment/Unclassifiable\nBossier Parish 1/16/2018 Attainment/Unclassifiable\nCaddo Parish 1/16/2018 Attainment/Unclassifiable\nCalcasieu Parish 1/16/2018 Attainment/Unclassifiable\nCaldwell Parish 1/16/2018 Attainment/Unclassifiable\nCameron Parish 1/16/2018 Attainment/Unclassifiable\nCatahoula Parish 1/16/2018 Attainment/Unclassifiable\nClaiborne Parish 1/16/2018 Attainment/Unclassifiable\nConcordia Parish 1/16/2018 Attainment/Unclassifiable\nDe Soto Parish 1/16/2018 Attainment/Unclassifiable\nEast Baton Rouge Parish Attainment/Unclassifiable\nEast Carroll Parish 1/16/2018 Attainment/Unclassifiable\nEast Feliciana Parish Attainment/Unclassifiable\nEvangeline Parish 1/16/2018 Attainment/Unclassifiable\nFranklin Parish 1/16/2018 Attainment/Unclassifiable\nGrant Parish 1/16/2018 Attainment/Unclassifiable\nIberia Parish 1/16/2018 Attainment/Unclassifiable\nIberville Parish Attainment/Unclassifiable\nJackson Parish 1/16/2018 Attainment/Unclassifiable\nJefferson Parish 1/16/2018 Attainment/Unclassifiable\nJefferson Davis Parish 1/16/2018 Attainment/Unclassifiable\nLafayette Parish 1/16/2018 Attainment/Unclassifiable\nLafourche Parish 1/16/2018 Attainment/Unclassifiable\nLaSalle Parish 1/16/2018 Attainment/Unclassifiable\nLincoln Parish 1/16/2018 Attainment/Unclassifiable\nLivingston Parish Attainment/Unclassifiable\nMadison Parish 1/16/2018 Attainment/Unclassifiable\nMorehouse Parish 1/16/2018 Attainment/Unclassifiable\nNatchitoches Parish 1/16/2018 Attainment/Unclassifiable\nOrleans Parish 1/16/2018 Attainment/Unclassifiable\nOuachita Parish 1/16/2018 Attainment/Unclassifiable\nPlaquemines Parish 1/16/2018 Attainment/Unclassifiable\nPointe Coupee Parish Attainment/Unclassifiable\nRapides Parish 1/16/2018 Attainment/Unclassifiable\nRed River Parish 1/16/2018 Attainment/Unclassifiable\nRichland Parish 1/16/2018 Attainment/Unclassifiable\nSabine Parish 1/16/2018 Attainment/Unclassifiable\nSt. Bernard Parish 1/16/2018 Attainment/Unclassifiable\nSt. Charles Parish 1/16/2018 Attainment/Unclassifiable\nSt. Helena Parish Attainment/Unclassifiable\nSt. James Parish Attainment/Unclassifiable\nSt. John the Baptist Parish 1/16/2018 Attainment/Unclassifiable\nSt. Landry Parish 1/16/2018 Attainment/Unclassifiable\nSt. Martin Parish 1/16/2018 Attainment/Unclassifiable\nSt. Mary Parish 1/16/2018 Attainment/Unclassifiable\nSt. Tammany Parish 1/16/2018 Attainment/Unclassifiable\nTangipahoa Parish 1/16/2018 Attainment/Unclassifiable\nTensas Parish 1/16/2018 Attainment/Unclassifiable\nTerrebonne Parish 1/16/2018 Attainment/Unclassifiable\nUnion Parish 1/16/2018 Attainment/Unclassifiable\nVermilion Parish 1/16/2018 Attainment/Unclassifiable\nVernon Parish 1/16/2018 Attainment/Unclassifiable\nWashington Parish 1/16/2018 Attainment/Unclassifiable\nWebster Parish 1/16/2018 Attainment/Unclassifiable\nWest Baton Rouge Parish Attainment/Unclassifiable\nWest Carroll Parish 1/16/2018 Attainment/Unclassifiable\nWest Feliciana Parish Attainment/Unclassifiable\nWinn Parish 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.\nLouisiana—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":"78d651cbfaa8dec12c65907098b8ded4c834774bb168bd71f7db2a634692788f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-81.318","next":"us/40-cfr-81.320"},"notice":"GroundRules: Original legal text. Not legal advice."}