1. Regulations
  2. title 40
  3. chapter I-i19
  4. part 81
  5. subpart C
  6. § 81.319

View all text of Subpart C [§ 81.300 - § 81.356]

§ 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 area 1Designation Date 2Type 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 Date 1Type Date 1Type 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 Date 1Type Date 1Type 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 Designation aClassification Date 1Type 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 area 1Designation Classification Date 2Type Date 2Type 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 Designation aClassification Date 1Type 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 Designation aClassification Date 1Type 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 Designation aDate 1Type 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 Designation aCategory/classification Date 1Type Date 1Type 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 Date 1Type Date 1Type Baton Rouge, LA 212/27/16, 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: 3Caldwell 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: 3Bienville 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) 3Acadia 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 area 1Designation Classification Date 2Type Date 2Type 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 NAAQS aDate 1Type 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: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.

AUTHORITY: 42 U.S.C. 7401,

SOURCE: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.

CITE AS: 40 CFR 81.319