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 Code of Federal Regulations (Last Updated: July 5, 2024)
 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

  § 81.319 - Louisiana.  

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  • § 81.319 Louisiana.

    Louisiana - 1971 Sulfur Dioxide NAAQS

    [Primary and Secondary]

    Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
    AQCR 019X
    AQCR 022X
    AQCR 106X

    Louisiana - 2010 Sulfur Dioxide NAAQS

    [Primary]

    Designated area1 Designation
    Date2 Type
    Evangeline Parish (Partial)Nonattainment.
    Portion of Evangeline Parish bounded by:
    570250m E, 3400300m N
    570250m E, 3403300m N
    572400m E, 3403300m N
    572400m E, 3400300m N
    NAD83 15R
    St. Bernard Parish, LA10/4/13Nonattainment.
    Calcasieu Parish, LA9/12/16Unclassifiable.
    St. Mary ParishUnclassifiable.
    Acadia ParishAttainment/Unclassifiable.
    Allen ParishAttainment/Unclassifiable.
    Assumption ParishAttainment/Unclassifiable.
    Avoyelles ParishAttainment/Unclassifiable.
    Beauregard ParishAttainment/Unclassifiable.
    Bienville ParishAttainment/Unclassifiable.
    Bossier ParishAttainment/Unclassifiable.
    Caddo ParishAttainment/Unclassifiable.
    Caldwell ParishAttainment/Unclassifiable.
    Cameron ParishAttainment/Unclassifiable.
    Catahoula ParishAttainment/Unclassifiable.
    Claiborne ParishAttainment/Unclassifiable.
    Concordia ParishAttainment/Unclassifiable.
    De Soto Parish9/12/16Attainment/Unclassifiable.
    East Baton Rouge Parish4/30/2021Attainment/Unclassifiable.
    East Carroll ParishAttainment/Unclassifiable.
    East Feliciana ParishAttainment/Unclassifiable.
    Evangeline Parish (part) (remainder)Attainment/Unclassifiable.
    Franklin ParishAttainment/Unclassifiable.
    Grant ParishAttainment/Unclassifiable.
    Iberia ParishAttainment/Unclassifiable.
    Iberville ParishAttainment/Unclassifiable.
    Jackson ParishAttainment/Unclassifiable.
    Jefferson ParishAttainment/Unclassifiable.
    Jefferson Davis ParishAttainment/Unclassifiable.
    Lafayette ParishAttainment/Unclassifiable.
    Lafourche ParishAttainment/Unclassifiable.
    LaSalle ParishAttainment/Unclassifiable.
    Lincoln ParishAttainment/Unclassifiable.
    Livingston ParishAttainment/Unclassifiable.
    Madison ParishAttainment/Unclassifiable.
    Morehouse ParishAttainment/Unclassifiable.
    Natchitoches ParishAttainment/Unclassifiable.
    Orleans ParishAttainment/Unclassifiable.
    Ouachita ParishAttainment/Unclassifiable.
    Plaquemines ParishAttainment/Unclassifiable.
    Point CoupeeAttainment/Unclassifiable.
    Rapides ParishAttainment/Unclassifiable.
    Red River ParishAttainment/Unclassifiable.
    Richland ParishAttainment/Unclassifiable.
    Sabine ParishAttainment/Unclassifiable.
    St. Charles Parish4/30/2021Attainment/Unclassifiable.
    St. Helena ParishAttainment/Unclassifiable.
    St. James Parish4/30/2021Attainment/Unclassifiable.
    St. John the Baptist ParishAttainment/Unclassifiable.
    St. Landry ParishAttainment/Unclassifiable.
    St. Martin ParishAttainment/Unclassifiable.
    St. Mary ParishAttainment/Unclassifiable.
    St. Tammany ParishAttainment/Unclassifiable.
    Tangipahoa ParishAttainment/Unclassifiable.
    Tensas ParishAttainment/Unclassifiable.
    Terrebonne ParishAttainment/Unclassifiable.
    Union ParishAttainment/Unclassifiable.
    Vermilion ParishAttainment/Unclassifiable.
    Vernon ParishAttainment/Unclassifiable.
    Washington ParishAttainment/Unclassifiable.
    Webster ParishAttainment/Unclassifiable.
    West Baton Rouge Parish4/30/2021Attainment/Unclassifiable.
    West Carroll ParishAttainment/Unclassifiable.
    Winn ParishAttainment/Unclassifiable.

    1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

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

    Louisiana - Carbon Monoxide

    Designated area Designation Classification
    Date1 Type Date1 Type
    AQCR 019 Monroe-El Dorado InterstateUnclassifiable/Attainment
    Caldwell Parish
    Catahoula Parish
    Concordia Parish
    East Carroll Parish
    Franklin Parish
    Grant Parish
    La Salle Parish
    Madison Parish
    Morehouse Parish
    Ouachita Parish
    Richland Parish
    Tensas Parish
    Union Parish
    West Carroll Parish
    AQCR 022 Shreveport-Texarkana-Tyler InterstateUnclassifiable/Attainment
    Avoyelles Parish
    Bienville Parish
    Bossier Parish
    Caddo Parish
    Claiborne Parish
    De Soto Parish
    Jackson Parish
    Lincoln Parish
    Natchitoches Parish
    Rapides Parish
    Red River Parish
    Sabine Parish
    Vernon Parish
    Webster Parish
    Winn Parish
    AQCR 106 Southern Louisiana-Southeast Texas InterstateUnclassifiable/Attainment
    Acadia Parish
    Allen Parish
    Ascension Parish
    Assumption Parish
    Beauregard Parish
    Calcasieu Parish
    Cameron Parish
    East Baton Rouge Parish
    East Feliciana Parish
    Evangeline Parish
    Iberia Parish
    Iberville Parish
    Jefferson Davis Parish
    Jefferson Parish
    Lafayette Parish
    Lafourche Parish
    Livingston Parish
    Orleans Parish
    Plaquemines Parish
    Pointe Coupee Parish
    St. Bernard Parish
    St. Charles Parish
    St. Helena Parish
    St. James Parish
    St. John the Baptist Parish
    St. Landry Parish
    St. Martin Parish
    St. Mary Parish
    St. Tammany Parish
    Tangipahoa Parish
    Terrebonne Parish
    Vermilion Parish
    Washington Parish
    West Baton Route Parish
    West Feliciana Parish

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

    Louisiana - 1978 Lead NAAQS.

    Designated area Designation Classification
    Date Type Date Type
    East Baton Rouge Parish1/6/92Unclassifiable
    Rest of State Not Designated

    Louisiana - Ozone (1-Hour Standard)2

    Designated area Designation Classification
    Date1 Type Date1 Type
    Baton Rouge Area:
    Ascension Parish11/15/90Nonattainment6/23/03Severe.
    East Baton Rouge Parish11/15/90Nonattainment6/23/03Severe.
    Iberville Parish11/15/90Nonattainment6/23/03Severe.
    Livingston Parish11/15/90Nonattainment6/23/03Severe.
    West Baton Rouge Parish11/15/90Nonattainment6/23/03Severe.
    Beauregard Parish Area:
    Beauregard ParishAttainment
    Grant Parish Area:
    Grant ParishAttainment
    Lafayette Area:
    Lafayette ParishAttainment
    Lafourche Parish Area:
    Lafourche Parish2/25/02Attainment
    Lake Charles Area:
    Calcasieu ParishAttainment
    New Orleans Area:
    Jefferson ParishAttainment
    Orleans ParishAttainment
    St. Bernard ParishAttainment
    St. Charles ParishAttainment
    Pointe Coupee Area:
    Pointe Coupee ParishAttainment
    St. James Parish Area:
    St. James ParishAttainment
    St. Mary Parish Area:
    St. Mary ParishAttainment
    AQCR 019 Monroe-El Dorado InterstateUnclassifiable/Attainment
    Caldwell Parish
    Catahoula Parish
    Concordia Parish
    East Carroll Parish
    Franklin Parish
    La Salle Parish
    Madison Parish
    Morehouse Parish
    Ouachita Parish
    Richland Parish
    Tensas Parish
    Union Parish
    West Carroll Parish
    AQCR 022 Shreveport-Texarkana-Tyler InterstateUnclassifiable/Attainment
    Avoyelles Parish
    Bienville Parish
    Bossier Parish
    Caddo Parish
    Claiborne Parish
    De Soto Parish
    Jackson Parish
    Lincoln Parish
    Natchitoches Parish
    Rapides Parish
    Red River Parish
    Sabine Parish
    Vernon Parish
    Webster Parish
    Winn Parish
    AQCR 106 Southern Louisiana-Southeast Texas InterstateUnclassifiable/Attainment
    Acadia Parish
    Allen Parish
    Assumption Parish
    Cameron Parish
    East Feliciana Parish
    Evangeline Parish
    Iberia Parish
    Jefferson Davis Parish
    Plaquemines Parish
    St. Helena Parish
    St. John the Baptist Parish
    St. Landry Parish
    St. Martin Parish
    St. Tammany Parish
    Tangipahoa Parish
    Terrebonne Parish
    Vermilion Parish
    Washington Parish
    West Feliciana Parish

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

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

    Louisiana - 1997 Annual PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    AQCR 019 Monroe-El Dorado Interstate:
    Caldwell ParishUnclassifiable/Attainment.
    Catahoula ParishUnclassifiable/Attainment.
    Concordia ParishUnclassifiable/Attainment.
    East Carroll ParishUnclassifiable/Attainment.
    Franklin ParishUnclassifiable/Attainment.
    La Salle ParishUnclassifiable/Attainment.
    Madison ParishUnclassifiable/Attainment.
    Morehouse ParishUnclassifiable/Attainment.
    Ouachita ParishUnclassifiable/Attainment.
    Richland ParishUnclassifiable/Attainment.
    Tensas ParishUnclassifiable/Attainment.
    Union ParishUnclassifiable/Attainment.
    West Carroll ParishUnclassifiable/Attainment.
    AQCR 022 Shreveport-Texarkana-Tyler Interstate:Unclassifiable/Attainment.
    Bienville ParishUnclassifiable/Attainment.
    Bossier ParishUnclassifiable/Attainment.
    Caddo ParishUnclassifiable/Attainment.
    Claiborne ParishUnclassifiable/Attainment.
    De Soto ParishUnclassifiable/Attainment.
    Jackson ParishUnclassifiable/Attainment.
    Lincoln ParishUnclassifiable/Attainment.
    Natchitoches ParishUnclassifiable/Attainment.
    Red River ParishUnclassifiable/Attainment.
    Sabine ParishUnclassifiable/Attainment.
    Webster ParishUnclassifiable/Attainment.
    Winn ParishUnclassifiable/Attainment.
    AQCR 106 S. Louisiana-S.E. Texas Interstate:Unclassifiable/Attainment.
    Acadia ParishUnclassifiable/Attainment.
    Allen ParishUnclassifiable/Attainment.
    Ascension ParishUnclassifiable/Attainment.
    Assumption ParishUnclassifiable/Attainment.
    Avoyelles ParishUnclassifiable/Attainment.
    Beauregard ParishUnclassifiable/Attainment.
    Calcasieu ParishUnclassifiable/Attainment.
    Cameron ParishUnclassifiable/Attainment.
    East Baton Rouge ParishUnclassifiable/Attainment.
    East Feliciana ParishUnclassifiable/Attainment.
    Evangeline ParishUnclassifiable/Attainment.
    Grant ParishUnclassifiable/Attainment.
    Iberia ParishUnclassifiable/Attainment.
    Iberville ParishUnclassifiable/Attainment.
    Jefferson Davis ParishUnclassifiable/Attainment.
    Jefferson ParishUnclassifiable/Attainment.
    Lafayette ParishUnclassifiable/Attainment.
    Lafourche ParishUnclassifiable/Attainment.
    Livingston ParishUnclassifiable/Attainment.
    Orleans ParishUnclassifiable/Attainment.
    Plaquemines ParishUnclassifiable/Attainment.
    Pointe Coupee ParishUnclassifiable/Attainment.
    Rapides ParishUnclassifiable/Attainment.
    St. Bernard ParishUnclassifiable/Attainment.
    St. Charles ParishUnclassifiable/Attainment.
    St. Helena ParishUnclassifiable/Attainment.
    St. James ParishUnclassifiable/Attainment.
    St. John the Baptist ParishUnclassifiable/Attainment.
    St. Landry ParishUnclassifiable/Attainment.
    St. Martin ParishUnclassifiable/Attainment.
    St. Tammany ParishUnclassifiable/Attainment.
    Tangipahoa ParishUnclassifiable/Attainment.
    Terrebonne ParishUnclassifiable/Attainment.
    Vermilion ParishUnclassifiable/Attainment.
    Vernon ParishUnclassifiable/Attainment.
    Washington ParishUnclassifiable/Attainment.
    West Baton Rouge ParishUnclassifiable/Attainment.
    West Feliciana ParishUnclassifiable/Attainment.

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

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

    Louisiana - 2012 Annual PM2.5 NAAQS

    [Primary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    AQCR 019 Monroe-El Dorado Interstate:
    Caldwell ParishUnclassifiable/Attainment
    Catahoula ParishUnclassifiable/Attainment
    Concordia ParishUnclassifiable/Attainment
    East Carroll ParishUnclassifiable/Attainment
    Franklin ParishUnclassifiable/Attainment
    La Salle ParishUnclassifiable/Attainment
    Madison ParishUnclassifiable/Attainment
    Morehouse ParishUnclassifiable/Attainment
    Ouachita ParishUnclassifiable/Attainment
    Richland ParishUnclassifiable/Attainment
    Tensas ParishUnclassifiable/Attainment
    Union ParishUnclassifiable/Attainment
    West Carroll ParishUnclassifiable/Attainment
    AQCR 022 Shreveport-Texarkana-Tyler Interstate:
    Bienville ParishUnclassifiable/Attainment
    Bossier ParishUnclassifiable/Attainment
    Caddo ParishUnclassifiable/Attainment
    Claiborne ParishUnclassifiable/Attainment
    De Soto ParishUnclassifiable/Attainment
    Jackson ParishUnclassifiable/Attainment
    Lincoln ParishUnclassifiable/Attainment
    Natchitoches ParishUnclassifiable/Attainment
    Red River ParishUnclassifiable/Attainment
    Sabine ParishUnclassifiable/Attainment
    Webster ParishUnclassifiable/Attainment
    Winn ParishUnclassifiable/Attainment
    AQCR 106 S. Louisiana-S.E. Texas Interstate:
    Acadia ParishUnclassifiable/Attainment
    Allen ParishUnclassifiable/Attainment
    Ascension ParishUnclassifiable/Attainment
    Assumption ParishUnclassifiable/Attainment
    Avoyelles ParishUnclassifiable/Attainment
    Beauregard ParishUnclassifiable/Attainment
    Calcasieu ParishUnclassifiable/Attainment
    Cameron ParishUnclassifiable/Attainment
    East Baton Rouge ParishUnclassifiable/Attainment
    East Feliciana ParishUnclassifiable/Attainment
    Evangeline ParishUnclassifiable/Attainment
    Grant ParishUnclassifiable/Attainment
    Iberia ParishUnclassifiable/Attainment
    Iberville ParishUnclassifiable/Attainment
    Jefferson Davis ParishUnclassifiable/Attainment
    Jefferson ParishUnclassifiable/Attainment
    Lafayette ParishUnclassifiable/Attainment
    Lafourche ParishUnclassifiable/Attainment
    Livingston ParishUnclassifiable/Attainment
    Orleans ParishUnclassifiable/Attainment
    Plaquemines ParishUnclassifiable/Attainment
    Pointe Coupee ParishUnclassifiable/Attainment
    Rapides ParishUnclassifiable/Attainment
    St. Bernard ParishUnclassifiable/Attainment
    St. Charles ParishUnclassifiable/Attainment
    St. Helena ParishUnclassifiable/Attainment
    St. James ParishUnclassifiable/Attainment
    St. John the Baptist ParishUnclassifiable/Attainment
    St. Landry ParishUnclassifiable/Attainment
    St. Martin ParishUnclassifiable/Attainment
    St. Tammany ParishUnclassifiable/Attainment
    Tangipahoa ParishUnclassifiable/Attainment
    Terrebonne ParishUnclassifiable/Attainment
    Vermilion ParishUnclassifiable/Attainment
    Vernon ParishUnclassifiable/Attainment
    Washington ParishUnclassifiable/Attainment
    West Baton Rouge ParishUnclassifiable/Attainment
    West Feliciana ParishUnclassifiable/Attainment

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

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

    Louisiana - 1997 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    AQCR 019 Monroe-El Dorado Interstate:
    Caldwell ParishUnclassifiable/Attainment.
    Catahoula ParishUnclassifiable/Attainment.
    Concordia ParishUnclassifiable/Attainment.
    East Carroll ParishUnclassifiable/Attainment.
    Franklin ParishUnclassifiable/Attainment.
    La Salle ParishUnclassifiable/Attainment.
    Madison ParishUnclassifiable/Attainment.
    Morehouse ParishUnclassifiable/Attainment.
    Ouachita ParishUnclassifiable/Attainment.
    Richland ParishUnclassifiable/Attainment.
    Tensas ParishUnclassifiable/Attainment.
    Union ParishUnclassifiable/Attainment.
    West Carroll ParishUnclassifiable/Attainment.
    AQCR 022 Shreveport-Texarkana-Tyler Interstate:
    Bienville ParishUnclassifiable/Attainment.
    Bossier ParishUnclassifiable/Attainment.
    Caddo ParishUnclassifiable/Attainment.
    Claiborne ParishUnclassifiable/Attainment.
    De Soto ParishUnclassifiable/Attainment.
    Jackson ParishUnclassifiable/Attainment.
    Lincoln ParishUnclassifiable/Attainment.
    Natchitoches ParishUnclassifiable/Attainment.
    Red River ParishUnclassifiable/Attainment.
    Sabine ParishUnclassifiable/Attainment.
    Webster ParishUnclassifiable/Attainment.
    Winn ParishUnclassifiable/Attainment.
    AQCR 106 S. Louisiana-S.E. Texas Interstate:
    Acadia ParishUnclassifiable/Attainment.
    Allen ParishUnclassifiable/Attainment.
    Ascension ParishUnclassifiable/Attainment.
    Assumption ParishUnclassifiable/Attainment.
    Avoyelles ParishUnclassifiable/Attainment.
    Beauregard ParishUnclassifiable/Attainment.
    Calcasieu ParishUnclassifiable/Attainment.
    Cameron ParishUnclassifiable/Attainment.
    East Baton Rouge ParishUnclassifiable/Attainment.
    East Feliciana ParishUnclassifiable/Attainment.
    Evangeline ParishUnclassifiable/Attainment.
    Grant ParishUnclassifiable/Attainment.
    Iberia ParishUnclassifiable/Attainment.
    Iberville ParishUnclassifiable/Attainment.
    Jefferson Davis ParishUnclassifiable/Attainment.
    Jefferson ParishUnclassifiable/Attainment.
    Lafayette ParishUnclassifiable/Attainment.
    Lafourche ParishUnclassifiable/Attainment.
    Livingston ParishUnclassifiable/Attainment.
    Orleans ParishUnclassifiable/Attainment.
    Plaquemines ParishUnclassifiable/Attainment.
    Pointe Coupee ParishUnclassifiable/Attainment.
    Rapides ParishUnclassifiable/Attainment.
    St. Bernard ParishUnclassifiable/Attainment.
    St. Charles ParishUnclassifiable/Attainment.
    St. Helena ParishUnclassifiable/Attainment.
    St. James ParishUnclassifiable/Attainment.
    St. John the Baptist ParishUnclassifiable/Attainment.
    St. Landry ParishUnclassifiable/Attainment.
    St. Martin ParishUnclassifiable/Attainment.
    St. Tammany ParishUnclassifiable/Attainment.
    Tangipahoa ParishUnclassifiable/Attainment.
    Terrebonne ParishUnclassifiable/Attainment.
    Vermilion ParishUnclassifiable/Attainment.
    Vernon ParishUnclassifiable/Attainment.
    Washington ParishUnclassifiable/Attainment.
    West Baton Rouge ParishUnclassifiable/Attainment.
    West Feliciana ParishUnclassifiable/Attainment.

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

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

    Louisiana - 2006 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date Type
    AQCR 019 Monroe-El Dorado Interstate:
    Caldwell ParishUnclassifiable/Attainment.
    Catahoula ParishUnclassifiable/Attainment.
    Concordia ParishUnclassifiable/Attainment.
    East Carroll ParishUnclassifiable/Attainment.
    Franklin ParishUnclassifiable/Attainment.
    La Salle ParishUnclassifiable/Attainment.
    Madison ParishUnclassifiable/Attainment.
    Morehouse ParishUnclassifiable/Attainment.
    Ouachita ParishUnclassifiable/Attainment.
    Richland ParishUnclassifiable/Attainment.
    Tensas ParishUnclassifiable/Attainment.
    Union ParishUnclassifiable/Attainment.
    West Carroll ParishUnclassifiable/Attainment.
    AQCR 022 Shreveport-Texarkana-Tyler Interstate:
    Bienville ParishUnclassifiable/Attainment.
    Bossier ParishUnclassifiable/Attainment.
    Caddo ParishUnclassifiable/Attainment.
    Claiborne ParishUnclassifiable/Attainment.
    De Soto ParishUnclassifiable/Attainment.
    Jackson ParishUnclassifiable/Attainment.
    Lincoln ParishUnclassifiable/Attainment.
    Natchitoches ParishUnclassifiable/Attainment.
    Red River ParishUnclassifiable/Attainment.
    Sabine ParishUnclassifiable/Attainment.
    Webster ParishUnclassifiable/Attainment.
    Winn ParishUnclassifiable/Attainment.
    AQCR 106 S. Louisiana-S.E. Texas Interstate:
    Acadia ParishUnclassifiable/Attainment.
    Allen ParishUnclassifiable/Attainment.
    Ascension ParishUnclassifiable/Attainment.
    Assumption ParishUnclassifiable/Attainment.
    Avoyelles ParishUnclassifiable/Attainment.
    Beauregard ParishUnclassifiable/Attainment.
    Calcasieu ParishUnclassifiable/Attainment.
    Cameron ParishUnclassifiable/Attainment.
    East Baton Rouge ParishUnclassifiable/Attainment.
    East Feliciana ParishUnclassifiable/Attainment.
    Evangeline ParishUnclassifiable/Attainment.
    Grant ParishUnclassifiable/Attainment.
    Iberia ParishUnclassifiable/Attainment.
    Iberville ParishUnclassifiable/Attainment.
    Jefferson Davis ParishUnclassifiable/Attainment.
    Jefferson ParishUnclassifiable/Attainment.
    Lafayette ParishUnclassifiable/Attainment.
    Lafourche ParishUnclassifiable/Attainment.
    Livingston ParishUnclassifiable/Attainment.
    Orleans ParishUnclassifiable/Attainment.
    Plaquemines ParishUnclassifiable/Attainment.
    Pointe Coupee ParishUnclassifiable/Attainment.
    Rapides ParishUnclassifiable/Attainment.
    St. Bernard ParishUnclassifiable/Attainment.
    St. Charles ParishUnclassifiable/Attainment.
    St. Helena ParishUnclassifiable/Attainment.
    St. James ParishUnclassifiable/Attainment.
    St. John the Baptist ParishUnclassifiable/Attainment.
    St. Landry ParishUnclassifiable/Attainment.
    St. Martin ParishUnclassifiable/Attainment.
    St. Tammany ParishUnclassifiable/Attainment.
    Tangipahoa ParishUnclassifiable/Attainment.
    Terrebonne ParishUnclassifiable/Attainment.
    Vermilion ParishUnclassifiable/Attainment.
    Vernon ParishUnclassifiable/Attainment.
    Washington ParishUnclassifiable/Attainment.
    West Baton Rouge ParishUnclassifiable/Attainment.
    West Feliciana ParishUnclassifiable/Attainment.

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

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

    Louisiana - NO2 (1971 Annual Standard)

    Designated area Does not meet primary standards Cannot be classified or better than national standards
    AQCR 019X
    AQCR 022X
    AQCR 106X

    Louisiana - NO2 (2010 1-Hour Standard)

    Designated area Designationa
    Date1 Type
    Acadia ParishUnclassifiable/Attainment.
    Allen ParishUnclassifiable/Attainment.
    Ascension ParishUnclassifiable/Attainment.
    Assumption ParishUnclassifiable/Attainment.
    Avoyelles ParishUnclassifiable/Attainment.
    Beauregard ParishUnclassifiable/Attainment.
    Bienville ParishUnclassifiable/Attainment.
    Bossier ParishUnclassifiable/Attainment.
    Caddo ParishUnclassifiable/Attainment.
    Calcasieu ParishUnclassifiable/Attainment.
    Caldwell ParishUnclassifiable/Attainment.
    Cameron ParishUnclassifiable/Attainment.
    Catahoula ParishUnclassifiable/Attainment.
    Claiborne ParishUnclassifiable/Attainment.
    Concordia ParishUnclassifiable/Attainment.
    De Soto ParishUnclassifiable/Attainment.
    East Baton Rouge ParishUnclassifiable/Attainment.
    East Carroll ParishUnclassifiable/Attainment.
    East Feliciana ParishUnclassifiable/Attainment.
    Evangeline ParishUnclassifiable/Attainment.
    Franklin ParishUnclassifiable/Attainment.
    Grant ParishUnclassifiable/Attainment.
    Iberia ParishUnclassifiable/Attainment.
    Iberville ParishUnclassifiable/Attainment.
    Jackson ParishUnclassifiable/Attainment.
    Jefferson Davis ParishUnclassifiable/Attainment.
    Jefferson ParishUnclassifiable/Attainment.
    La Salle ParishUnclassifiable/Attainment.
    Lafayette ParishUnclassifiable/Attainment.
    Lafourche ParishUnclassifiable/Attainment.
    Lincoln ParishUnclassifiable/Attainment.
    Livingston ParishUnclassifiable/Attainment.
    Madison ParishUnclassifiable/Attainment.
    Morehouse ParishUnclassifiable/Attainment.
    Natchitoches ParishUnclassifiable/Attainment.
    Orleans ParishUnclassifiable/Attainment.
    Ouachita ParishUnclassifiable/Attainment.
    Plaquemines ParishUnclassifiable/Attainment.
    Pointe Coupee ParishUnclassifiable/Attainment.
    Rapides ParishUnclassifiable/Attainment.
    Red River ParishUnclassifiable/Attainment.
    Richland ParishUnclassifiable/Attainment.
    Sabine ParishUnclassifiable/Attainment.
    St. Bernard ParishUnclassifiable/Attainment.
    St. Charles ParishUnclassifiable/Attainment.
    St. Helena ParishUnclassifiable/Attainment.
    St. James ParishUnclassifiable/Attainment.
    St. John the Baptist ParishUnclassifiable/Attainment.
    St. Landry ParishUnclassifiable/Attainment.
    St. Martin ParishUnclassifiable/Attainment.
    St. Tammany ParishUnclassifiable/Attainment.
    Tangipahoa ParishUnclassifiable/Attainment.
    Terrebonne ParishUnclassifiable/Attainment.
    Tensas ParishUnclassifiable/Attainment.
    Vermilion ParishUnclassifiable/Attainment.
    Vernon ParishUnclassifiable/Attainment.
    Union ParishUnclassifiable/Attainment.
    Washington ParishUnclassifiable/Attainment.
    Webster ParishUnclassifiable/Attainment.
    West Baton Rouge ParishUnclassifiable/Attainment.
    West Carroll ParishUnclassifiable/Attainment.
    West Feliciana ParishUnclassifiable/Attainment.
    Winn ParishUnclassifiable/Attainment

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

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

    Louisiana - PM-10

    Designated area Designation Classification
    Date Type Date Type
    AQCR 01911/15/90Unclassifiable
    AQCR 02211/15/90Unclassifiable
    AQCR 10611/15/90Unclassifiable

    Louisiana - 1997 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designationa Category/classification
    Date1 Type Date1 Type
    Baton Rouge Area:
    Ascension Parish(2)Attainment.
    East Baton Rouge Parish(2)Attainment.
    Iberville Parish(2)Attainment.
    Livingston Parish(2)Attainment.
    West Baton Rouge Parish(2)Attainment
    Beauregard Parish Area, LA:
    Beauregard ParishUnclassifiable/Attainment
    Grant Parish Area:
    Grant ParishUnclassifiable/Attainment
    Lafayette Area:
    Lafayette ParishUnclassifiable/Attainment
    Lafourche Parish Area:
    Lafourche ParishUnclassifiable/Attainment
    Lake Charles Area:
    Calcasieu ParishUnclassifiable/Attainment
    New Orleans Area:
    Jefferson ParishUnclassifiable/Attainment
    Orleans ParishUnclassifiable/Attainment
    St. Bernard ParishUnclassifiable/Attainment
    St. Charles ParishUnclassifiable/Attainment
    Pointe Coupee Area:
    Pointe Coupee ParishUnclassifiable/Attainment
    St. James Parish Area:
    St. James ParishUnclassifiable/Attainment
    St. Mary Parish Area:
    St. Mary ParishUnclassifiable/Attainment
    AQCR 019 Monroe-El Dorado InterstateUnclassifiable/Attainment
    Caldwell Parish
    Catahoula Parish
    Concordia Parish
    East Carroll Parish
    Franklin Parish
    La Salle Parish
    Madison Parish
    Morehouse Parish
    Ouachita Parish
    Richland Parish
    Tensas Parish
    Union Parish
    West Carroll Parish
    AQCR 022 Shreveport-Texarkana-Tyler InterstateUnclassifiable/Attainment
    Bienville Parish
    Bossier Parish
    Caddo Parish
    Claiborne Parish
    De Soto Parish
    Jackson Parish
    Lincoln Parish
    Natchitoches Parish
    Red River Parish
    Sabine Parish
    Webster Parish
    Winn Parish
    AQCR 106 S. Louisiana-S.E. Texas Interstate:
    St. John the Baptist ParishUnclassifiable/Attainment
    AQCR 106 S. Louisiana-S.E. Texas InterstateUnclassifiable/Attainment
    Acadia Parish
    Allen Parish
    Assumption Parish
    Avoyelles Parish
    Cameron Parish
    East Feliciana Parish
    Evangeline Parish
    Iberia Parish
    Jefferson Davis Parish
    Plaquemines Parish
    Rapides Parish
    St. Helena Parish
    St. Landry Parish
    St. Martin Parish
    St. Tammany Parish
    Tangipahoa Parish
    Terrebonne Parish
    Vermilion Parish
    Vernon Parish
    Washington Parish
    West Feliciana Parish

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

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

    2 Effective December 30, 2011.

    Louisiana - 2008 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area Designation Classification
    Date1 Type Date1 Type
    Baton Rouge, LA2 12/27/16, 81 FR 95052Attainment12/27/16
    Ascension Parish
    East Baton Rouge Parish
    Iberville Parish
    Livingston Parish
    West Baton Rouge Parish
    AQCR 019 Monroe-El Dorado Interstate:3
    Caldwell ParishUnclassifiable/Attainment
    Catahoula ParishUnclassifiable/Attainment
    Concordia ParishUnclassifiable/Attainment
    East Carroll ParishUnclassifiable/Attainment
    Franklin ParishUnclassifiable/Attainment
    La Salle ParishUnclassifiable/Attainment
    Madison ParishUnclassifiable/Attainment
    Morehouse ParishUnclassifiable/Attainment
    Ouachita ParishUnclassifiable/Attainment
    Richland ParishUnclassifiable/Attainment
    Tensas ParishUnclassifiable/Attainment
    Union ParishUnclassifiable/Attainment
    West Carroll ParishUnclassifiable/Attainment
    AQCR 022 Shreveport-Texarkana-Tyler Interstate:3
    Bienville ParishUnclassifiable/Attainment
    Bossier ParishUnclassifiable/Attainment
    Caddo ParishUnclassifiable/Attainment
    Claiborne ParishUnclassifiable/Attainment
    De Soto ParishUnclassifiable/Attainment
    Jackson ParishUnclassifiable/Attainment
    Lincoln ParishUnclassifiable/Attainment
    Natchitoches Parish Unclassifiable/Attainment
    Red River ParishUnclassifiable/Attainment
    Sabine ParishUnclassifiable/Attainment
    Webster ParishUnclassifiable/Attainment
    Winn ParishUnclassifiable/Attainment
    AQCR 106 S. Louisiana-SE. Texas Interstate: (remainder)3
    Acadia ParishUnclassifiable/Attainment
    Allen ParishUnclassifiable/Attainment
    Assumption ParishUnclassifiable/Attainment
    Avoyelles ParishUnclassifiable/Attainment
    Beauregard ParishUnclassifiable/Attainment
    Calcasieu ParishUnclassifiable/Attainment
    Cameron ParishUnclassifiable/Attainment
    East Feliciana ParishUnclassifiable/Attainment
    Evangeline ParishUnclassifiable/Attainment
    Grant ParishUnclassifiable/Attainment
    Iberia ParishUnclassifiable/Attainment
    Jefferson Davis ParishUnclassifiable/Attainment
    Jefferson ParishUnclassifiable/Attainment
    Lafayette ParishUnclassifiable/Attainment
    Lafourche ParishUnclassifiable/Attainment
    Orleans ParishUnclassifiable/Attainment
    Plaquemines ParishUnclassifiable/Attainment
    Pointe Coupee ParishUnclassifiable/Attainment
    Rapides ParishUnclassifiable/Attainment
    St. Bernard ParishUnclassifiable/Attainment
    St. Charles ParishUnclassifiable/Attainment
    St. Helena ParishUnclassifiable/Attainment
    St. James ParishUnclassifiable/Attainment
    St. John the Baptist ParishUnclassifiable/Attainment
    St. Landry ParishUnclassifiable/Attainment
    St. Martin ParishUnclassifiable/Attainment
    St. Mary ParishUnclassifiable/Attainment
    St. Tammany ParishUnclassifiable/Attainment
    Tangipahoa ParishUnclassifiable/Attainment
    Terrebonne ParishUnclassifiable/Attainment
    Vermilion ParishUnclassifiable/Attainment
    Vernon ParishUnclassifiable/Attainment
    Washington ParishUnclassifiable/Attainment
    West Feliciana ParishUnclassifiable/Attainment

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

    2 Excludes Indian country located in each area, unless otherwise noted.

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

    Louisiana - 2015 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    Acadia Parish1/16/18Attainment/Unclassifiable
    Allen Parish1/16/18Attainment/Unclassifiable
    Ascension ParishAttainment/Unclassifiable
    Assumption ParishAttainment/Unclassifiable
    Avoyelles Parish1/16/18Attainment/Unclassifiable
    Beauregard Parish1/16/18Attainment/Unclassifiable
    Bienville Parish1/16/18Attainment/Unclassifiable
    Bossier Parish1/16/18Attainment/Unclassifiable
    Caddo Parish1/16/18Attainment/Unclassifiable
    Calcasieu Parish1/16/18Attainment/Unclassifiable
    Caldwell Parish1/16/18Attainment/Unclassifiable
    Cameron Parish1/16/18Attainment/Unclassifiable
    Catahoula Parish1/16/18Attainment/Unclassifiable
    Claiborne Parish1/16/18Attainment/Unclassifiable
    Concordia Parish1/16/18Attainment/Unclassifiable
    De Soto Parish1/16/18Attainment/Unclassifiable
    East Baton Rouge ParishAttainment/Unclassifiable
    East Carroll Parish1/16/18Attainment/Unclassifiable
    East Feliciana ParishAttainment/Unclassifiable
    Evangeline Parish1/16/18Attainment/Unclassifiable
    Franklin Parish1/16/18Attainment/Unclassifiable
    Grant Parish1/16/18Attainment/Unclassifiable
    Iberia Parish1/16/18Attainment/Unclassifiable
    Iberville ParishAttainment/Unclassifiable
    Jackson Parish1/16/18Attainment/Unclassifiable
    Jefferson Parish1/16/18Attainment/Unclassifiable
    Jefferson Davis Parish1/16/18Attainment/Unclassifiable
    Lafayette Parish1/16/18Attainment/Unclassifiable
    Lafourche Parish1/16/18Attainment/Unclassifiable
    LaSalle Parish1/16/18Attainment/Unclassifiable
    Lincoln Parish1/16/18Attainment/Unclassifiable
    Livingston ParishAttainment/Unclassifiable
    Madison Parish1/16/18Attainment/Unclassifiable
    Morehouse Parish1/16/18Attainment/Unclassifiable
    Natchitoches Parish1/16/18Attainment/Unclassifiable
    Orleans Parish1/16/18Attainment/Unclassifiable
    Ouachita Parish1/16/18Attainment/Unclassifiable
    Plaquemines Parish1/16/18Attainment/Unclassifiable
    Pointe Coupee ParishAttainment/Unclassifiable
    Rapides Parish1/16/18Attainment/Unclassifiable
    Red River Parish1/16/18Attainment/Unclassifiable
    Richland Parish1/16/18Attainment/Unclassifiable
    Sabine Parish1/16/18Attainment/Unclassifiable
    St. Bernard Parish1/16/18Attainment/Unclassifiable
    St. Charles Parish1/16/18Attainment/Unclassifiable
    St. Helena ParishAttainment/Unclassifiable
    St. James ParishAttainment/Unclassifiable
    St. John the Baptist Parish1/16/18Attainment/Unclassifiable
    St. Landry Parish1/16/18Attainment/Unclassifiable
    St. Martin Parish1/16/18Attainment/Unclassifiable
    St. Mary Parish1/16/18Attainment/Unclassifiable
    St. Tammany Parish1/16/18Attainment/Unclassifiable
    Tangipahoa Parish1/16/18Attainment/Unclassifiable
    Tensas Parish1/16/18Attainment/Unclassifiable
    Terrebonne Parish1/16/18Attainment/Unclassifiable
    Union Parish1/16/18Attainment/Unclassifiable
    Vermilion Parish1/16/18Attainment/Unclassifiable
    Vernon Parish1/16/18Attainment/Unclassifiable
    Washington Parish1/16/18Attainment/Unclassifiable
    Webster Parish1/16/18Attainment/Unclassifiable
    West Baton Rouge ParishAttainment/Unclassifiable
    West Carroll Parish1/16/18Attainment/Unclassifiable
    West Feliciana ParishAttainment/Unclassifiable
    Winn Parish1/16/18Attainment/Unclassifiable

    1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

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

    Louisiana - 2008 Lead NAAQS

    Designated area Designation for the 2008 NAAQSa
    Date1 Type
    Whole StateUnclassifiable/Attainment.

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

    1 December 31, 2011 unless otherwise noted.

    [43 FR 8964, Mar. 3, 1978]

    Editorial Note

    Editorial Note:

    For Federal Register citations affecting § 81.319, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.