§ 81.325 - Mississippi.

§ 81.325 Mississippi.

Mississippi - TSP

Designated area	Does not meet primary standards	Does not meet secondary standards	Cannot be classified	Better than national standards
Adams County				X
Alcorn County				X
Amite County				X
Attala County				X
Benton County				X
Bolivar County				X
Calhoun County				X
Carroll County				X
Chickasaw County				X
Choctaw County				X
Clairborne County				X
Clarke County				X
Clay County				X
Coahoma County				X
Copiah County				X
Covington County				X
DeSoto County				X
Forrest County				X
Franklin County				X
George County				X
Greene County				X
Grenada County				X
Hancock County				X
Harrison County				X
Hinds County				X
Holmes County				X
Humphreys County				X
Issaquena County				X
Ittawamba County				X
Jackson County				X
Jasper County				X
Jefferson County				X
Jefferson Davis County				X
Jones County				X
Kemper County				X
Lafayette County				X
Lamar County				X
Lauderdale County				X
Lawerence County				X
Leake County				X
Lee County				X
Leflore County				X
Lincoln County				X
Lowndes County				X
Madison County				X
Marion County				X
Marshall County				X
Monroe County				X
Montgomery County				X
Neshoba County				X
Newton County				X
Noxubee County				X
Oktibbeha County				X
Panola County				X
Pearl River County				X
Perry County				X
Pike County				X
Pontotoc County				X
Prentiss County				X
Quitman County				X
Rankin County				X
Scott County				X
Sharkey County				X
Simpson County				X
Smith County				X
Stone County				X
Sunflower County				X
Tallahatchie County				X
Tate County				X
Tippah County				X
Tishomingo County				X
Tunica County				X
Union County				X
Walthall County				X
Warren County				X
Washington County				X
Wayne County				X
Webster County				X
Wilkinson County				X
Winston County				X
Yalobusha County				X
Yazoo County				X

Mississippi - 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
Adams County				X
Alcorn County				X
Amite County				X
Attala County				X
Benton County				X
Bolivar County				X
Calhoun County				X
Carroll County				X
Chickasaw County				X
Choctaw County				X
Clairborne County				X
Clarke County				X
Clay County				X
Coahoma County				X
Copiah County				X
Covington County				X
DeSoto County				X
Forest County				X
Franklin County				X
George County				X
Greene County				X
Grenada County				X
Hancock County				X
Harrison County				X
Hinds County				X
Holmes County				X
Humphreys County				X
Issaquena County				X
Ittawamba County				X
Jackson County				X
Jasper County				X
Jefferson County				X
Jefferson Davis County				X
Jones County				X
Kemper County				X
Lafayette County				X
Lamar County				X
Lauderdale County				X
Lawrence County				X
Leake County				X
Lee County				X
Leflore County				X
Lincoln County				X
Lowndes County				X
Madison County				X
Marion County				X
Marshall County				X
Monroe County				X
Montgomery County				X
Neshoba County				X
Newton County				X
Noxubee County				X
Oktibbeha County				X
Panola County				X
Pearl River County				X
Perry County				X
Pike County				X
Pontotoc County				X
Prentiss County				X
Quitman County				X
Rankin County				X
Scott County				X
Sharkey County				X
Simpson County				X
Smith County				X
Stone County				X
Sunflower County				X
Tallahatchie County				X
Tate County				X
Tippah County				X
Tishomingo County				X
Tunica County				X
Union County				X
Walthall County				X
Warren County				X
Washington County				X
Wayne County				X
Webster County				X
Wilkinson County				X
Winston County				X
Yalobusha County				X
Yazoo County				X

Mississippi - 2010 Sulfur Dioxide NAAQS

[Primary]

Designated area1	Designation
	Date2	Type
Adams County		Attainment/Unclassifiable.
Alcorn County		Attainment/Unclassifiable.
Amite County		Attainment/Unclassifiable.
Attala County		Attainment/Unclassifiable.
Benton County		Attainment/Unclassifiable.
Bolivar County		Attainment/Unclassifiable.
Calhoun County		Attainment/Unclassifiable.
Carroll County		Attainment/Unclassifiable.
Chickasaw County		Attainment/Unclassifiable.
Choctaw County		Attainment/Unclassifiable.
Claiborne County		Attainment/Unclassifiable.
Clarke County		Attainment/Unclassifiable.
Clay County		Attainment/Unclassifiable.
Coahoma County		Attainment/Unclassifiable.
Copiah County		Attainment/Unclassifiable.
Covington County		Attainment/Unclassifiable.
DeSoto County		Attainment/Unclassifiable.
Forrest County		Attainment/Unclassifiable.
Franklin County		Attainment/Unclassifiable.
George County		Attainment/Unclassifiable.
Greene County		Attainment/Unclassifiable.
Grenada County		Attainment/Unclassifiable.
Hancock County		Attainment/Unclassifiable.
Harrison County		Attainment/Unclassifiable.
Hinds County		Attainment/Unclassifiable.
Holmes County		Attainment/Unclassifiable.
Humphreys County		Attainment/Unclassifiable.
Issaquena County		Attainment/Unclassifiable.
Itawamba County		Attainment/Unclassifiable.
Jackson County		Attainment/Unclassifiable.
Jasper County		Attainment/Unclassifiable.
Jefferson County		Attainment/Unclassifiable.
Jefferson Davis County		Attainment/Unclassifiable.
Jones County		Attainment/Unclassifiable.
Kemper County		Attainment/Unclassifiable.
Lafayette County		Attainment/Unclassifiable.
Lamar County, MS	9/12/16	Attainment/Unclassifiable.
Lauderdale County		Attainment/Unclassifiable.
Lawrence County		Attainment/Unclassifiable.
Leake County		Attainment/Unclassifiable.
Lee County		Attainment/Unclassifiable.
Leflore County		Attainment/Unclassifiable.
Lincoln County		Attainment/Unclassifiable.
Lowndes County		Attainment/Unclassifiable.
Madison County		Attainment/Unclassifiable.
Marion County		Attainment/Unclassifiable.
Marshall County		Attainment/Unclassifiable.
Monroe County		Attainment/Unclassifiable.
Montgomery County		Attainment/Unclassifiable.
Neshoba County		Attainment/Unclassifiable.
Newton County		Attainment/Unclassifiable.
Noxubee County		Attainment/Unclassifiable.
Oktibbeha County		Attainment/Unclassifiable.
Panola County		Attainment/Unclassifiable.
Pearl River County		Attainment/Unclassifiable.
Perry County		Attainment/Unclassifiable.
Pike County		Attainment/Unclassifiable.
Pontotoc County		Attainment/Unclassifiable.
Prentiss County		Attainment/Unclassifiable.
Quitman County		Attainment/Unclassifiable.
Rankin County		Attainment/Unclassifiable.
Scott County		Attainment/Unclassifiable.
Sharkey County		Attainment/Unclassifiable.
Simpson County		Attainment/Unclassifiable.
Smith County		Attainment/Unclassifiable.
Stone County		Attainment/Unclassifiable.
Sunflower County		Attainment/Unclassifiable.
Tallahatchie County		Attainment/Unclassifiable.
Tate County		Attainment/Unclassifiable.
Tippah County		Attainment/Unclassifiable.
Tishomingo County		Attainment/Unclassifiable.
Tunica County		Attainment/Unclassifiable.
Union County		Attainment/Unclassifiable.
Walthall County		Attainment/Unclassifiable.
Warren County		Attainment/Unclassifiable.
Washington County		Attainment/Unclassifiable.
Wayne County		Attainment/Unclassifiable.
Webster County		Attainment/Unclassifiable.
Wilkinson County		Attainment/Unclassifiable.
Winston County		Attainment/Unclassifiable.
Yalobusha County		Attainment/Unclassifiable.
Yazoo County		Attainment/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.

Mississippi - Carbon Monoxide

Designated Area	Designation		Classification
	Date1	Type	Date1	Type
Statewide		Unclassifiable/Attainment
Adams County
Alcorn County
Amite County
Attala County
Benton County
Bolivar County
Calhoun County
Carroll County
Chickasaw County
Choctaw County
Claiborne County
Clarke County
Clay County
Coahoma County
Copiah County
Covington County
DeSoto County
Forrest County
Franklin County
George County
Greene County
Grenada County
Hancock County
Harrison County
Hinds County
Holmes County
Humphreys County
Issaquena County
Itawamba County
Jackson County
Jasper County
Jefferson County
Jefferson Davis County
Jones County
Kemper County
Lafayette County
Lamar County
Lauderdale County
Lawrence County
Leake County
Lee County
Leflore County
Lincoln County
Lowndes County
Madison County
Marion County
Marshall County
Monroe County
Montgomery County
Neshoba County
Newton County
Noxubee County
Oktibbeha County
Panola County
Pearl River County
Perry County
Pike County
Pontotoc County
Prentiss County
Quitman County
Rankin County
Scott County
Sharkey County
Simpson County
Smith County
Stone County
Sunflower County
Tallahatchie County
Tate County
Tippah County
Tishomingo County
Tunica County
Union County
Walthall County
Warren County
Washington County
Wayne County
Webster County
Wilkinson County
Winston County
Yalobusha County
Yazoo County

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

Mississippi - Ozone (1-Hour Standard)²

Designated area	Designation		Classification
	Date1	Type	Date1	Type
Memphis:
De Soto County	11/15/90	Unclassifiable/Attainment	11/15/90
Statewide		Unclassifiable/Attainment
Adams County
Alcorn County
Amite County
Attala County
Benton County
Bolivar County
Calhoun County
Carroll County
Chickasaw County
Choctaw County
Claiborne County
Clarke County
Clay County
Coahoma County
Copiah County
Covington County
Forrest County
Franklin County
George County
Greene County
Grenada County
Hancock County
Harrison County
Hinds County
Holmes County
Humphreys County
Issaquena County
Itawamba County
Jackson County
Jasper County
Jefferson County
Jefferson Davis County
Jones County
Kemper County
Lafayette County
Lamar County
Lauderdale County
Lawrence County
Leake County
Lee County
Leflore County
Lincoln County
Lowndes County
Madison County
Marion County
Marshall County
Monroe County
Montgomery County
Neshoba County
Newton County
Noxubee County
Oktibbeha County
Panola County
Pearl River County
Perry County
Pike County
Pontotoc County
Prentiss County
Quitman County
Rankin County
Scott County
Sharkey County
Simpson County
Smith County
Stone County
Sunflower County
Tallahatchie County
Tate County
Tippah County
Tishomingo County
Tunica County
Union County
Walthall County
Warren County
Washington County
Wayne County
Webster County
Wilkinson County
Winston County
Yalobusha County
Yazoo County

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 Mississippi.

Mississippi - 1997 Annual PM_2.5 NAAQS

[Primary and Secondary]

Designated area	Designationa		Classification
	Date1	Type	Date	Type
Statewide:
Adams County		Unclassifiable/Attainment.
Alcorn County		Unclassifiable/Attainment.
Amite County		Unclassifiable/Attainment.
Attala County		Unclassifiable/Attainment.
Benton County		Unclassifiable/Attainment.
Bolivar County		Unclassifiable/Attainment.
Calhoun County		Unclassifiable/Attainment.
Carroll County		Unclassifiable/Attainment.
Chickasaw County		Unclassifiable/Attainment.
Choctaw County		Unclassifiable/Attainment.
Claiborne County		Unclassifiable/Attainment.
Clarke County		Unclassifiable/Attainment.
Clay County		Unclassifiable/Attainment.
Coahoma County		Unclassifiable/Attainment.
Copiah County		Unclassifiable/Attainment.
Covington County		Unclassifiable/Attainment.
DeSoto County		Unclassifiable/Attainment.
Forrest County		Unclassifiable/Attainment.
Franklin County		Unclassifiable/Attainment.
George County		Unclassifiable/Attainment.
Greene County		Unclassifiable/Attainment.
Grenada County		Unclassifiable/Attainment.
Hancock County		Unclassifiable/Attainment.
Harrison County		Unclassifiable/Attainment.
Hinds County		Unclassifiable/Attainment.
Holmes County		Unclassifiable/Attainment.
Humphreys County		Unclassifiable/Attainment.
Issaquena County		Unclassifiable/Attainment.
Itawamba County		Unclassifiable/Attainment.
Jackson County		Unclassifiable/Attainment.
Jasper County		Unclassifiable/Attainment.
Jefferson County		Unclassifiable/Attainment.
Jefferson Davis County		Unclassifiable/Attainment.
Jones County		Unclassifiable/Attainment.
Kemper County		Unclassifiable/Attainment.
Lafayette County		Unclassifiable/Attainment.
Lamar County		Unclassifiable/Attainment.
Lauderdale County		Unclassifiable/Attainment.
Lawrence County		Unclassifiable/Attainment.
Leake County		Unclassifiable/Attainment.
Lee County		Unclassifiable/Attainment.
Leflore County		Unclassifiable/Attainment.
Lincoln County		Unclassifiable/Attainment.
Lowndes County		Unclassifiable/Attainment.
Madison County		Unclassifiable/Attainment.
Marion County		Unclassifiable/Attainment.
Marshall County		Unclassifiable/Attainment.
Monroe County		Unclassifiable/Attainment.
Montgomery County		Unclassifiable/Attainment.
Neshoba County		Unclassifiable/Attainment.
Newton County		Unclassifiable/Attainment.
Noxubee County		Unclassifiable/Attainment.
Oktibbeha County		Unclassifiable/Attainment.
Panola County		Unclassifiable/Attainment.
Pearl River County		Unclassifiable/Attainment.
Perry County		Unclassifiable/Attainment.
Pike County		Unclassifiable/Attainment.
Pontotoc County		Unclassifiable/Attainment.
Prentiss County		Unclassifiable/Attainment.
Quitman County		Unclassifiable/Attainment.
Rankin County		Unclassifiable/Attainment.
Scott County		Unclassifiable/Attainment.
Sharkey County		Unclassifiable/Attainment.
Simpson County		Unclassifiable/Attainment.
Smith County		Unclassifiable/Attainment.
Stone County		Unclassifiable/Attainment.
Sunflower County		Unclassifiable/Attainment.
Tallahatchie County		Unclassifiable/Attainment.
Tate County		Unclassifiable/Attainment.
Tippah County		Unclassifiable/Attainment.
Tishomingo County		Unclassifiable/Attainment.
Tunica County		Unclassifiable/Attainment.
Union County		Unclassifiable/Attainment.
Walthall County		Unclassifiable/Attainment.
Warren County		Unclassifiable/Attainment.
Washington County		Unclassifiable/Attainment.
Wayne County		Unclassifiable/Attainment.
Webster County		Unclassifiable/Attainment.
Wilkinson County		Unclassifiable/Attainment.
Winston County		Unclassifiable/Attainment.
Yalobusha County		Unclassifiable/Attainment.
Yazoo County		Unclassifiable/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.

Mississippi - 2012 Annual PM_2.5 NAAQS

[Primary]

Designated area1	Designation		Classification
	Date2	Type	Date2	Type
Statewide:
Adams County		Unclassifiable/Attainment
Alcorn County		Unclassifiable/Attainment
Amite County		Unclassifiable/Attainment
Attala County		Unclassifiable/Attainment
Benton County		Unclassifiable/Attainment
Bolivar County		Unclassifiable/Attainment
Calhoun County		Unclassifiable/Attainment
Carroll County		Unclassifiable/Attainment
Chickasaw County		Unclassifiable/Attainment
Choctaw County		Unclassifiable/Attainment
Claiborne County		Unclassifiable/Attainment
Clarke County		Unclassifiable/Attainment
Clay County		Unclassifiable/Attainment
Coahoma County		Unclassifiable/Attainment
Copiah County		Unclassifiable/Attainment
Covington County		Unclassifiable/Attainment
DeSoto County		Unclassifiable/Attainment
Forrest County		Unclassifiable/Attainment
Franklin County		Unclassifiable/Attainment
George County		Unclassifiable/Attainment
Greene County		Unclassifiable/Attainment
Grenada County		Unclassifiable/Attainment
Hancock County		Unclassifiable/Attainment
Harrison County		Unclassifiable/Attainment
Hinds County		Unclassifiable/Attainment
Holmes County		Unclassifiable/Attainment
Humphreys County		Unclassifiable/Attainment
Issaquena County		Unclassifiable/Attainment
Itawamba County		Unclassifiable/Attainment
Jackson County		Unclassifiable/Attainment
Jasper County		Unclassifiable/Attainment
Jefferson County		Unclassifiable/Attainment
Jefferson Davis County		Unclassifiable/Attainment
Jones County		Unclassifiable/Attainment
Kemper County		Unclassifiable/Attainment
Lafayette County		Unclassifiable/Attainment
Lamar County		Unclassifiable/Attainment
Lauderdale County		Unclassifiable/Attainment
Lawrence County		Unclassifiable/Attainment
Leake County		Unclassifiable/Attainment
Lee County		Unclassifiable/Attainment
Leflore County		Unclassifiable/Attainment
Lincoln County		Unclassifiable/Attainment
Lowndes County		Unclassifiable/Attainment
Madison County		Unclassifiable/Attainment
Marion County		Unclassifiable/Attainment
Marshall County		Unclassifiable/Attainment
Monroe County		Unclassifiable/Attainment
Montgomery County		Unclassifiable/Attainment
Neshoba County		Unclassifiable/Attainment
Newton County		Unclassifiable/Attainment
Noxubee County		Unclassifiable/Attainment
Oktibbeha County		Unclassifiable/Attainment
Panola County		Unclassifiable/Attainment
Pearl River County		Unclassifiable/Attainment
Perry County		Unclassifiable/Attainment
Pike County		Unclassifiable/Attainment
Pontotoc County		Unclassifiable/Attainment
Prentiss County		Unclassifiable/Attainment
Quitman County		Unclassifiable/Attainment
Rankin County		Unclassifiable/Attainment
Scott County		Unclassifiable/Attainment
Sharkey County		Unclassifiable/Attainment
Simpson County		Unclassifiable/Attainment
Smith County		Unclassifiable/Attainment
Stone County		Unclassifiable/Attainment
Sunflower County		Unclassifiable/Attainment
Tallahatchie County		Unclassifiable/Attainment
Tate County		Unclassifiable/Attainment
Tippah County		Unclassifiable/Attainment
Tishomingo County		Unclassifiable/Attainment
Tunica County		Unclassifiable/Attainment
Union County		Unclassifiable/Attainment
Walthall County		Unclassifiable/Attainment
Warren County		Unclassifiable/Attainment
Washington County		Unclassifiable/Attainment
Wayne County		Unclassifiable/Attainment
Webster County		Unclassifiable/Attainment
Wilkinson County		Unclassifiable/Attainment
Winston County		Unclassifiable/Attainment
Yalobusha County		Unclassifiable/Attainment
Yazoo County		Unclassifiable/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.

Mississippi - 1997 24-Hour PM_2.5 NAAQS

[Primary and Secondary]

Designated area	Designationa		Classification
	Date1	Type	Date	Type
Statewide:
Adams County		Unclassifiable/Attainment.
Alcorn County		Unclassifiable/Attainment.
Amite County		Unclassifiable/Attainment.
Attala County		Unclassifiable/Attainment.
Benton County		Unclassifiable/Attainment.
Bolivar County		Unclassifiable/Attainment.
Calhoun County		Unclassifiable/Attainment.
Carroll County		Unclassifiable/Attainment.
Chickasaw County		Unclassifiable/Attainment.
Choctaw County		Unclassifiable/Attainment.
Claiborne County		Unclassifiable/Attainment.
Clarke County		Unclassifiable/Attainment.
Clay County		Unclassifiable/Attainment.
Coahoma County		Unclassifiable/Attainment.
Copiah County		Unclassifiable/Attainment.
Covington County		Unclassifiable/Attainment.
DeSoto County		Unclassifiable/Attainment.
Forrest County		Unclassifiable/Attainment.
Franklin County		Unclassifiable/Attainment.
George County		Unclassifiable/Attainment.
Greene County		Unclassifiable/Attainment.
Grenada County		Unclassifiable/Attainment.
Hancock County		Unclassifiable/Attainment.
Harrison County		Unclassifiable/Attainment.
Hinds County		Unclassifiable/Attainment.
Holmes County		Unclassifiable/Attainment.
Humphreys County		Unclassifiable/Attainment.
Issaquena County		Unclassifiable/Attainment.
Itawamba County		Unclassifiable/Attainment.
Jackson County		Unclassifiable/Attainment.
Jasper County		Unclassifiable/Attainment.
Jefferson County		Unclassifiable/Attainment.
Jefferson Davis County		Unclassifiable/Attainment.
Jones County		Unclassifiable/Attainment.
Kemper County		Unclassifiable/Attainment.
Lafayette County		Unclassifiable/Attainment.
Lamar County		Unclassifiable/Attainment.
Lauderdale County		Unclassifiable/Attainment.
Lawrence County		Unclassifiable/Attainment.
Leake County		Unclassifiable/Attainment.
Lee County		Unclassifiable/Attainment.
Leflore County		Unclassifiable/Attainment.
Lincoln County		Unclassifiable/Attainment.
Lowndes County		Unclassifiable/Attainment.
Madison County		Unclassifiable/Attainment.
Marion County		Unclassifiable/Attainment.
Marshall County		Unclassifiable/Attainment.
Monroe County		Unclassifiable/Attainment.
Montgomery County		Unclassifiable/Attainment.
Neshoba County		Unclassifiable/Attainment.
Newton County		Unclassifiable/Attainment.
Noxubee County		Unclassifiable/Attainment.
Oktibbeha County		Unclassifiable/Attainment.
Panola County		Unclassifiable/Attainment.
Pearl River County		Unclassifiable/Attainment.
Perry County		Unclassifiable/Attainment.
Pike County		Unclassifiable/Attainment.
Pontotoc County		Unclassifiable/Attainment.
Prentiss County		Unclassifiable/Attainment.
Quitman County		Unclassifiable/Attainment.
Rankin County		Unclassifiable/Attainment.
Scott County		Unclassifiable/Attainment.
Sharkey County		Unclassifiable/Attainment.
Simpson County		Unclassifiable/Attainment.
Smith County		Unclassifiable/Attainment.
Stone County		Unclassifiable/Attainment.
Sunflower County		Unclassifiable/Attainment.
Tallahatchie County		Unclassifiable/Attainment.
Tate County		Unclassifiable/Attainment.
Tippah County		Unclassifiable/Attainment.
Tishomingo County		Unclassifiable/Attainment.
Tunica County		Unclassifiable/Attainment.
Union County		Unclassifiable/Attainment.
Walthall County		Unclassifiable/Attainment.
Warren County		Unclassifiable/Attainment.
Washington County		Unclassifiable/Attainment.
Wayne County		Unclassifiable/Attainment.
Webster County		Unclassifiable/Attainment.
Wilkinson County		Unclassifiable/Attainment.
Winston County		Unclassifiable/Attainment.
Yalobusha County		Unclassifiable/Attainment.
Yazoo County		Unclassifiable/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.

Mississippi - 2006 24-Hour PM_2.5 NAAQS

[Primary and Secondary]

Designated area	Designationa		Classification
	Date1	Type	Date	Type
Statewide:
Adams County		Unclassifiable/Attainment.
Alcorn County		Unclassifiable/Attainment.
Amite County		Unclassifiable/Attainment.
Attala County		Unclassifiable/Attainment.
Benton County		Unclassifiable/Attainment.
Bolivar County		Unclassifiable/Attainment.
Calhoun County		Unclassifiable/Attainment.
Carroll County		Unclassifiable/Attainment.
Chickasaw County		Unclassifiable/Attainment.
Choctaw County		Unclassifiable/Attainment.
Claiborne County		Unclassifiable/Attainment.
Clarke County		Unclassifiable/Attainment.
Clay County		Unclassifiable/Attainment.
Coahoma County		Unclassifiable/Attainment.
Copiah County		Unclassifiable/Attainment.
Covington County		Unclassifiable/Attainment.
DeSoto County		Unclassifiable/Attainment.
Forrest County		Unclassifiable/Attainment.
Franklin County		Unclassifiable/Attainment.
George County		Unclassifiable/Attainment.
Greene County		Unclassifiable/Attainment.
Grenada County		Unclassifiable/Attainment.
Hancock County		Unclassifiable/Attainment.
Harrison County		Unclassifiable/Attainment.
Hinds County		Unclassifiable/Attainment.
Holmes County		Unclassifiable/Attainment.
Humphreys County		Unclassifiable/Attainment.
Issaquena County		Unclassifiable/Attainment.
Itawamba County		Unclassifiable/Attainment.
Jackson County		Unclassifiable/Attainment.
Jasper County		Unclassifiable/Attainment.
Jefferson County		Unclassifiable/Attainment.
Jefferson Davis County		Unclassifiable/Attainment.
Jones County		Unclassifiable/Attainment.
Kemper County		Unclassifiable/Attainment.
Lafayette County		Unclassifiable/Attainment.
Lamar County		Unclassifiable/Attainment.
Lauderdale County		Unclassifiable/Attainment.
Lawrence County		Unclassifiable/Attainment.
Leake County		Unclassifiable/Attainment.
Lee County		Unclassifiable/Attainment.
Leflore County		Unclassifiable/Attainment.
Lincoln County		Unclassifiable/Attainment.
Lowndes County		Unclassifiable/Attainment.
Madison County		Unclassifiable/Attainment.
Marion County		Unclassifiable/Attainment.
Marshall County		Unclassifiable/Attainment.
Monroe County		Unclassifiable/Attainment.
Montgomery County		Unclassifiable/Attainment.
Neshoba County		Unclassifiable/Attainment.
Newton County		Unclassifiable/Attainment.
Noxubee County		Unclassifiable/Attainment.
Oktibbeha County		Unclassifiable/Attainment.
Panola County		Unclassifiable/Attainment.
Pearl River County		Unclassifiable/Attainment.
Perry County		Unclassifiable/Attainment.
Pike County		Unclassifiable/Attainment.
Pontotoc County		Unclassifiable/Attainment.
Prentiss County		Unclassifiable/Attainment.
Quitman County		Unclassifiable/Attainment.
Rankin County		Unclassifiable/Attainment.
Scott County		Unclassifiable/Attainment.
Sharkey County		Unclassifiable/Attainment.
Simpson County		Unclassifiable/Attainment.
Smith County		Unclassifiable/Attainment.
Stone County		Unclassifiable/Attainment.
Sunflower County		Unclassifiable/Attainment.
Tallahatchie County		Unclassifiable/Attainment.
Tate County		Unclassifiable/Attainment.
Tippah County		Unclassifiable/Attainment.
Tishomingo County		Unclassifiable/Attainment.
Tunica County		Unclassifiable/Attainment.
Union County		Unclassifiable/Attainment.
Walthall County		Unclassifiable/Attainment.
Warren County		Unclassifiable/Attainment.
Washington County		Unclassifiable/Attainment.
Wayne County		Unclassifiable/Attainment.
Webster County		Unclassifiable/Attainment.
Wilkinson County		Unclassifiable/Attainment.
Winston County		Unclassifiable/Attainment.
Yalobusha County		Unclassifiable/Attainment.
Yazoo County		Unclassifiable/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.

Mississippi - NO₂ (1971 Annual Standard)

Designated area	Does not meet primary standards	Cannot be classified or better than national standards
Statewide		X

Mississippi - NO₂ (2010 1-Hour Standard)

Designated area	Designationa
	Date1	Type
Adams County		Unclassifiable/Attainment.
Alcorn County		Unclassifiable/Attainment.
Amite County		Unclassifiable/Attainment.
Attala County		Unclassifiable/Attainment.
Benton County		Unclassifiable/Attainment.
Bolivar County		Unclassifiable/Attainment.
Calhoun County		Unclassifiable/Attainment.
Carroll County		Unclassifiable/Attainment.
Chickasaw County		Unclassifiable/Attainment.
Choctaw County		Unclassifiable/Attainment.
Claiborne County		Unclassifiable/Attainment.
Clarke County		Unclassifiable/Attainment.
Clay County		Unclassifiable/Attainment.
Coahoma County		Unclassifiable/Attainment.
Copiah County		Unclassifiable/Attainment.
Covington County		Unclassifiable/Attainment.
DeSoto County		Unclassifiable/Attainment.
Forrest County		Unclassifiable/Attainment.
Franklin County		Unclassifiable/Attainment.
George County		Unclassifiable/Attainment.
Greene County		Unclassifiable/Attainment.
Grenada County		Unclassifiable/Attainment.
Hancock County		Unclassifiable/Attainment.
Harrison County		Unclassifiable/Attainment.
Hinds County		Unclassifiable/Attainment.
Holmes County		Unclassifiable/Attainment.
Humphreys County		Unclassifiable/Attainment.
Issaquena County		Unclassifiable/Attainment.
Itawamba County		Unclassifiable/Attainment.
Jackson County		Unclassifiable/Attainment.
Jasper County		Unclassifiable/Attainment.
Jefferson County		Unclassifiable/Attainment.
Jefferson Davis County		Unclassifiable/Attainment.
Jones County		Unclassifiable/Attainment.
Kemper County		Unclassifiable/Attainment.
Lafayette County		Unclassifiable/Attainment.
Lamar County		Unclassifiable/Attainment.
Lauderdale County		Unclassifiable/Attainment.
Lawrence County		Unclassifiable/Attainment.
Leake County		Unclassifiable/Attainment.
Lee County		Unclassifiable/Attainment.
Leflore County		Unclassifiable/Attainment.
Lincoln County		Unclassifiable/Attainment.
Lowndes County		Unclassifiable/Attainment.
Madison County		Unclassifiable/Attainment.
Marion County		Unclassifiable/Attainment.
Marshall County		Unclassifiable/Attainment.
Monroe County		Unclassifiable/Attainment.
Montgomery County		Unclassifiable/Attainment.
Neshoba County		Unclassifiable/Attainment.
Newton County		Unclassifiable/Attainment.
Noxubee County		Unclassifiable/Attainment.
Oktibbeha County		Unclassifiable/Attainment.
Panola County		Unclassifiable/Attainment.
Pearl River County		Unclassifiable/Attainment.
Perry County		Unclassifiable/Attainment.
Pike County		Unclassifiable/Attainment.
Pontotoc County		Unclassifiable/Attainment.
Prentiss County		Unclassifiable/Attainment.
Quitman County		Unclassifiable/Attainment.
Rankin County		Unclassifiable/Attainment.
Scott County		Unclassifiable/Attainment.
Sharkey County		Unclassifiable/Attainment.
Simpson County		Unclassifiable/Attainment.
Smith County		Unclassifiable/Attainment.
Stone County		Unclassifiable/Attainment.
Sunflower County		Unclassifiable/Attainment.
Tallahatchie County		Unclassifiable/Attainment.
Tate County		Unclassifiable/Attainment.
Tippah County		Unclassifiable/Attainment.
Tishomingo County		Unclassifiable/Attainment.
Tunica County		Unclassifiable/Attainment.
Union County		Unclassifiable/Attainment.
Walthall County		Unclassifiable/Attainment.
Warren County		Unclassifiable/Attainment.
Washington County		Unclassifiable/Attainment.
Wayne County		Unclassifiable/Attainment.
Webster County		Unclassifiable/Attainment.
Wilkinson County		Unclassifiable/Attainment.
Winston County		Unclassifiable/Attainment.
Yalobusha County		Unclassifiable/Attainment.
Yazoo County		Unclassifiable/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.

Mississippi - 1997 8-Hour Ozone NAAQS

([Primary and Secondary) ]

Designated area	Designationa		Category/classification
	Date1	Type	Date1	Type
Statewide		Unclassifiable/Attainment.
Adams County
Alcorn County
Amite County
Attala County
Benton County
Bolivar County
Calhoun County
Carroll County
Chickasaw County
Choctaw County
Claiborne County
Clarke County
Clay County
Coahoma County
Copiah County
Covington County
DeSoto County
Forrest County
Franklin County
George County
Greene County
Grenada County
Hancock County
Harrison County
Hinds County
Holmes County
Humphreys County
Issaquena County
Itawamba County
Jackson County
Jasper County
Jefferson County
Jefferson Davis County
Jones County
Kemper County
Lafayette County
Lamar County
Lauderdale County
Lawrence County
Leake County
Lee County
Leflore County
Lincoln County
Lowndes County
Madison County
Marion County
Marshall County
Monroe County
Montgomery County
Neshoba County
Newton County
Noxubee County
Oktibbeha County
Panola County
Pearl River County
Perry County
Pike County
Pontotoc County
Prentiss County
Quitman County
Rankin County
Scott County
Sharkey County
Simpson County
Smith County
Stone County
Sunflower County
Tallahatchie County
Tate County
Tippah County
Tishomingo County
Tunica County
Union County
Walthall County
Warren County
Washington County
Wayne County
Webster County
Wilkinson County
Winston County
Yalobusha County
Yazoo County

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

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

Mississippi - 2008 8-Hour Ozone NAAQS

([Primary and secondary) Secondary]

Designated area	Designation		Classification
	Date1	Type	Date1	Type
Memphis, TN-MS-AR:2
DeSoto County (part) Portion along MPO Lines	4/8/16	Attainment
Rest of State:3
Adams County		Unclassifiable/Attainment
Alcorn County		Unclassifiable/Attainment
Amite County		Unclassifiable/Attainment
Attala County		Unclassifiable/Attainment
Benton County		Unclassifiable/Attainment
Bolivar County		Unclassifiable/Attainment
Calhoun County		Unclassifiable/Attainment
Carroll County		Unclassifiable/Attainment
Chickasaw County		Unclassifiable/Attainment
Choctaw County		Unclassifiable/Attainment
Claiborne County		Unclassifiable/Attainment
Clarke County		Unclassifiable/Attainment
Clay County		Unclassifiable/Attainment.
Coahoma County		Unclassifiable/Attainment
Copiah County		Unclassifiable/Attainment
Covington County		Unclassifiable/Attainment
DeSoto County (remainder)		Unclassifiable/Attainment
Forrest County		Unclassifiable/Attainment
Franklin County		Unclassifiable/Attainment
George County		Unclassifiable/Attainment
Greene County		Unclassifiable/Attainment
Grenada County		Unclassifiable/Attainment
Hancock County		Unclassifiable/Attainment
Harrison County		Unclassifiable/Attainment
Hinds County		Unclassifiable/Attainment
Holmes County		Unclassifiable/Attainment
Humphreys County		Unclassifiable/Attainment
Issaquena County		Unclassifiable/Attainment
Itawamba County		Unclassifiable/Attainment
Jackson County		Unclassifiable/Attainment
Jasper County		Unclassifiable/Attainment
Jefferson County		Unclassifiable/Attainment
Jefferson Davis County		Unclassifiable/Attainment
Jones County		Unclassifiable/Attainment
Kemper County		Unclassifiable/Attainment
Lafayette County		Unclassifiable/Attainment
Lamar County		Unclassifiable/Attainment
Lauderdale County		Unclassifiable/Attainment
Lawrence County		Unclassifiable/Attainment
Leake County		Unclassifiable/Attainment
Lee County		Unclassifiable/Attainment
Leflore County		Unclassifiable/Attainment
Lincoln County		Unclassifiable/Attainment
Lowndes County		Unclassifiable/Attainment
Madison County		Unclassifiable/Attainment
Marion County		Unclassifiable/Attainment
Marshall County		Unclassifiable/Attainment
Monroe County		Unclassifiable/Attainment
Montgomery County		Unclassifiable/Attainment
Neshoba County		Unclassifiable/Attainment
Newton County		Unclassifiable/Attainment
Noxubee County		Unclassifiable/Attainment
Oktibbeha County		Unclassifiable/Attainment
Panola County		Unclassifiable/Attainment
Pearl River County		Unclassifiable/Attainment
Perry County		Unclassifiable/Attainment
Pike County		Unclassifiable/Attainment
Pontotoc County		Unclassifiable/Attainment
Prentiss County		Unclassifiable/Attainment
Quitman County		Unclassifiable/Attainment
Rankin County		Unclassifiable/Attainment
Scott County		Unclassifiable/Attainment
Sharkey County		Unclassifiable/Attainment
Simpson County		Unclassifiable/Attainment
Smith County		Unclassifiable/Attainment
Stone County		Unclassifiable/Attainment
Sunflower County		Unclassifiable/Attainment
Tallahatchie County		Unclassifiable/Attainment
Tate County.		Unclassifiable/Attainment
Tippah County		Unclassifiable/Attainment
Tishomingo County		Unclassifiable/Attainment
Tunica County		Unclassifiable/Attainment
Union County		Unclassifiable/Attainment
Walthall County		Unclassifiable/Attainment
Warren County		Unclassifiable/Attainment
Washington County		Unclassifiable/Attainment
Wayne County		Unclassifiable/Attainment
Webster County		Unclassifiable/Attainment
Wilkinson County		Unclassifiable/Attainment
Winston County		Unclassifiable/Attainment
Yalobusha County		Unclassifiable/Attainment
Yazoo County		Unclassifiable/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.

Mississippi - 2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area1	Designation		Classification
	Date2	Type	Date	Type
Adams County		Attainment/Unclassifiable
Alcorn County		Attainment/Unclassifiable
Amite County		Attainment/Unclassifiable
Attala County		Attainment/Unclassifiable
Benton County		Attainment/Unclassifiable
Bolivar County		Attainment/Unclassifiable
Calhoun County		Attainment/Unclassifiable
Carroll County		Attainment/Unclassifiable
Chickasaw County		Attainment/Unclassifiable
Choctaw County		Attainment/Unclassifiable
Claiborne County		Attainment/Unclassifiable
Clarke County		Attainment/Unclassifiable
Clay County		Attainment/Unclassifiable
Coahoma County		Attainment/Unclassifiable
Copiah County		Attainment/Unclassifiable
Covington County		Attainment/Unclassifiable
DeSoto County		Attainment/Unclassifiable
Forrest County		Attainment/Unclassifiable
Franklin County		Attainment/Unclassifiable
George County		Attainment/Unclassifiable
Greene County		Attainment/Unclassifiable
Grenada County		Attainment/Unclassifiable
Hancock County		Attainment/Unclassifiable
Harrison County		Attainment/Unclassifiable
Hinds County		Attainment/Unclassifiable
Holmes County		Attainment/Unclassifiable
Humphreys County		Attainment/Unclassifiable
Issaquena County		Attainment/Unclassifiable
Itawamba County		Attainment/Unclassifiable
Jackson County		Attainment/Unclassifiable
Jasper County		Attainment/Unclassifiable
Jefferson County		Attainment/Unclassifiable
Jefferson Davis County		Attainment/Unclassifiable
Jones County		Attainment/Unclassifiable
Kemper County		Attainment/Unclassifiable
Lafayette County		Attainment/Unclassifiable
Lamar County		Attainment/Unclassifiable
Lauderdale County		Attainment/Unclassifiable
Lawrence County		Attainment/Unclassifiable
Leake County		Attainment/Unclassifiable
Lee County		Attainment/Unclassifiable
Leflore County		Attainment/Unclassifiable
Lincoln County		Attainment/Unclassifiable
Lowndes County		Attainment/Unclassifiable
Madison County		Attainment/Unclassifiable
Marion County		Attainment/Unclassifiable
Marshall County		Attainment/Unclassifiable
Monroe County		Attainment/Unclassifiable
Montgomery County		Attainment/Unclassifiable
Neshoba County		Attainment/Unclassifiable
Newton County		Attainment/Unclassifiable
Noxubee County		Attainment/Unclassifiable
Oktibbeha County		Attainment/Unclassifiable
Panola County		Attainment/Unclassifiable
Pearl River County		Attainment/Unclassifiable
Perry County		Attainment/Unclassifiable
Pike County		Attainment/Unclassifiable
Pontotoc County		Attainment/Unclassifiable
Prentiss County		Attainment/Unclassifiable
Quitman County		Attainment/Unclassifiable
Rankin County		Attainment/Unclassifiable
Scott County		Attainment/Unclassifiable
Sharkey County		Attainment/Unclassifiable
Simpson County		Attainment/Unclassifiable
Smith County		Attainment/Unclassifiable
Stone County		Attainment/Unclassifiable
Sunflower County		Attainment/Unclassifiable
Tallahatchie County		Attainment/Unclassifiable
Tate County		Attainment/Unclassifiable
Tippah County		Attainment/Unclassifiable
Tishomingo County		Attainment/Unclassifiable
Tunica County		Attainment/Unclassifiable
Union County		Attainment/Unclassifiable
Walthall County		Attainment/Unclassifiable
Warren County		Attainment/Unclassifiable
Washington County		Attainment/Unclassifiable
Wayne County		Attainment/Unclassifiable
Webster County		Attainment/Unclassifiable
Wilkinson County		Attainment/Unclassifiable
Winston County		Attainment/Unclassifiable
Yalobusha County		Attainment/Unclassifiable
Yazoo County		Attainment/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 January 16, 2018, unless otherwise noted.

Mississippi - 2008 Lead NAAQS

Designated area	Designation for the 2008 NAAQSa
	Date1	Type
Whole State		Unclassifiable/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 § 81.325, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.