Title 40, Part 81 — Designation of Areas for Air Quality Planning Purposes

Definitions.

Scope.

National Capital Interstate Air Quality Control Region (District of Columbia, Maryland, and Virginia).

New Jersey-New York-Connecticut Interstate Air Quality Control Region.

Metropolitan Chicago Interstate Air Quality Control Region.

Metropolitan Philadelphia Interstate Air Quality Control Region (Pennsylvania-New Jersey-Delaware).

Metropolitan Denver Intrastate Air Quality Control Region.

Metropolitan Los Angeles Air Quality Control Region.

Metropolitan St. Louis Interstate Air Quality Control Region.

Metropolitan Boston Intrastate Air Quality Control Region.

Metropolitan Cincinnati Interstate Air Quality Control Region.

San Francisco Bay Area Intrastate Air Quality Control Region.

Greater Metropolitan Cleveland Intrastate Air Quality Control Region.

Southwest Pennsylvania Intrastate Air Quality Control Region.

Niagara Frontier Intrastate Air Quality Control Region.

Metropolitan Kansas City Interstate Air Quality Control Region.

Hartford-New Haven-Springfield Interstate Air Quality Control Region.

Minneapolis-St. Paul Intrastate Air Quality Control Region.

Metropolitan Baltimore Intrastate Air Quality Control Region.

Metropolitan Indianapolis Intrastate Air Quality Control Region.

Southeastern Wisconsin Intrastate Air Quality Control Region.

Metropolitan Providence Interstate Air Quality Control Region.

Puget Sound Intrastate Air Quality Control Region.

Steubenville-Weirton-Wheeling Interstate Air Quality Control Region.

Metropolitan Dayton Intrastate Air Quality Control Region.

Louisville Interstate Air Quality Control Region.

Maricopa Intrastate Air Quality Control Region.

Metropolitan Detroit-Port Huron Intrastate Air Quality Control Region.

Metropolitan Houston-Galveston Intrastate Air Quality Control Region.

Metropolitan Dallas-Fort Worth Intrastate Air Quality Control Region.

Metropolitan San Antonio Intrastate Air Quality Control Region.

Metropolitan Birmingham Intrastate Air Quality Control Region.

Chattanooga Interstate Air Quality Control Region.

Metropolitan Toledo Interstate Air Quality Control Region.

Metropolitan Memphis Interstate Air Quality Control Region.

Metropolitan Atlanta Intrastate Air Quality Control Region.

U.S. Virgin Islands Air Quality Control Region.

Central Oklahoma Intrastate Air Quality Control Region.

Champlain Valley Interstate Air Quality Control Region.

Southeast Florida Intrastate Air Quality Control Region.

Metropolitan Omaha-Council Bluffs Interstate Air Quality Control Region.

Portland Interstate Air Quality Control Region.

Wasatch Front Intrastate Air Quality Control Region.

Southern Louisiana-Southeast Texas Interstate Air Quality Control Region.

Cook Inlet Intrastate Air Quality Control Region.

Northeast Pennsylvania-Upper Delaware Valley Interstate Air Quality Control Region.

Eastern Tennessee-Southwestern Virginia Interstate Air Quality Control Region.

Columbus (Georgia)-Phenix City (Alabama) Interstate Air Quality Control Region.

Cumberland-Keyser Interstate Air Quality Control Region.

Duluth (Minnesota)-Superior (Wisconsin) Interstate Air Quality Control Region.

Evansville (Indiana)-Owensboro-Henderson (Kentucky) Interstate Air Quality Control Region.

Northeast Mississippi Intrastate Air Quality Control Region.

Metropolitan Fort Smith Interstate Air Quality Control Region.

Huntington (West Virginia)-Ashland (Kentucky)-Portsmouth-Ironton (Ohio) Interstate Air Quality Control Region.

Joplin (Missouri)-Northeast Oklahoma Interstate Air Quality Control Region.

Southeast Minnesota-La Crosse (Wisconsin) Interstate Air Quality Control Region.

Lake Michigan Intrastate Air Quality Control Region.

Mobile (Alabama)-Pensacola-Panama City (Florida)-Southern Mississippi Interstate Air Quality Control Region.

Paducah (Kentucky)-Cairo (Illinois) Interstate Air Quality Control Region.

Parkersburg (West Virginia)-Marietta (Ohio) Interstate Air Quality Control Region.

Rockford (Illinois)-Janesville-Beloit (Wisconsin) Interstate Air Quality Control Region.

Tennessee River Valley (Alabama)-Cumberland Mountains (Tennessee) Interstate Air Quality Control Region.

South Bend-Elkhart (Indiana)-Benton Harbor (Michigan) Interstate Air Quality Control Region.

Northwest Pennsylvania-Youngstown Interstate Air Quality Control Region.

Metropolitan Charlotte Interstate Air Quality Control Region.

State of Hawaii Air Quality Control Region.

Puerto Rico Air Quality Control Region.

Metropolitan Portland Intrastate Air Quality Control Region.

Northeastern Oklahoma Intrastate Air Quality Control Region.

Las Vegas Intrastate Air Quality Control Region.

Merrimack Valley-Southern New Hampshire Interstate Air Quality Control Region.

El Paso-Las Cruces-Alamogordo Interstate Air Quality Control Region.

Albuquerque-Mid Rio Grande Intrastate Air Quality Control Region.

Metropolitan Fargo-Moorhead Interstate Air Quality Control Region.

Metropolitan Sioux Falls Interstate Air Quality Control Region.

Metropolitan Sioux City Interstate Air Quality Control Region.

Metropolitan Boise Intrastate Air Quality Control Region.

Billings Intrastate Air Quality Control Region.

Metropolitan Cheyenne Intrastate Air Quality Control Region.

Androscoggin Valley Interstate Air Quality Control Region.

Jacksonville (Florida)-Brunswick (Georgia) Interstate Air Quality Control Region.

Monroe (Louisiana)—El Dorado (Arkansas) Interstate Air Quality Control Region.

Hampton Roads Intrastate Air Quality Control Region.

Shreveport-Texarkana-Tyler Interstate Air Quality Control Region.

Central Florida Intrastate Air Quality Control Region.

West Central Florida Intrastate Air Quality Control Region.

Southwest Florida Intrastate Air Quality Control Region.

Burlington-Keokuk Interstate Air Quality Control Region.

New Mexico Southern Border Intrastate Air Quality Control Region.

Eastern Washington-Northern Idaho Interstate Air Quality Control Region.

Metropolitan Dubuque Interstate Air Quality Control Region.

Metropolitan Quad Cities Interstate Air Quality Control Region.

Central Pennsylvania Intrastate Air Quality Control Region.

South Central Pennsylvania Intrastate Air Quality Control Region.

Greenville-Spartanburg Intrastate Air Quality Control Region.

Greenwood Intrastate Air Quality Control Region.

Columbia Intrastate Air Quality Control Region.

Florence Intrastate Air Quality Control Region.

Camden-Sumter Intrastate Air Quality Control Region.

Georgetown Intrastate Air Quality Control Region.

Charleston Intrastate Air Quality Control Region.

Savannah (Georgia)-Beaufort (South Carolina) Interstate Air Quality Control Region.

Augusta (Georgia)-Aiken (South Carolina) Interstate Air Quality Control Region.

Northwest Nevada Intrastate Air Quality Control Region.

Northern Missouri Intrastate Air Quality Control Region.

Southeast Missouri Intrastate Air Quality Control Region.

Southwest Missouri Intrastate Air Quality Control Region.

Western Tennessee Intrastate Air Quality Control Region.

Middle Tennessee Intrastate Air Quality Control Region.

Four Corners Interstate Air Quality Control Region.

Mississippi Delta Intrastate Air Quality Control Region.

Southeastern Oklahoma Intrastate Air Quality Control Region.

North Central Oklahoma Intrastate Air Quality Control Region.

Southwestern Oklahoma Intrastate Air Quality Control Region.

Northwestern Oklahoma Intrastate Air Quality Control Region.

Central New York Intrastate Air Quality Control Region.

Genesee-Finger Lakes Intrastate Air Quality Control Region.

Hudson Valley Intrastate Air Quality Control Region.

Southern Tier East Intrastate Air Quality Control Region.

Southern Tier West Intrastate Air Quality Control Region.

Abilene-Wichita Falls Intrastate Air Quality Control Region.

Amarillo-Lubbock Intrastate Air Quality Control Region.

Austin-Waco Intrastate Air Quality Control Region.

Brownsville-Laredo Intrastate Air Quality Control Region.

Corpus Christi-Victoria Intrastate Air Quality Control Region.

Midland-Odessa-San Angelo Intrastate Air Quality Control Region.

Central Arkansas Intrastate Air Quality Control Region.

Northeast Arkansas Intrastate Air Quality Control Region.

Northwest Arkansas Intrastate Air Quality Control Region.

Berkshire Intrastate Air Quality Control Region.

Central Massachusetts Intrastate Air Quality Control Region.

Central Virginia Intrastate Air Quality Control Region.

Northeastern Virginia Intrastate Air Quality Control Region.

State Capital Intrastate Air Quality Control Region.

Valley of Virginia Intrastate Air Quality Control Region.

Eastern Mountain Intrastate Air Quality Control Region.

Eastern Piedmont Intrastate Air Quality Control Region.

Northern Coastal Plain Intrastate Air Quality Control Region.

Northern Piedmont Intrastate Air Quality Control Region.

Sandhills Intrastate Air Quality Control Region.

Southern Coastal Plain Intrastate Air Quality Control Region.

Western Mountain Intrastate Air Quality Control Region.

Eastern Shore Intrastate Air Quality Control Region.

Central Maryland Intrastate Air Quality Control Region.

Southern Maryland Intrastate Air Quality Control Region.

North Central Wisconsin Intrastate Air Quality Control Region.

Southern Wisconsin Intrastate Air Quality Control Region.

Great Basin Valley Intrastate Air Quality Control Region.

North Central Coast Intrastate Air Quality Control Region.

North Coast Intrastate Air Quality Control Region.

Northeast Plateau Intrastate Air Quality Control Region.

Sacramento Valley Intrastate Air Quality Control Region.

San Diego Intrastate Air Quality Control Region.

San Joaquin Valley Intrastate Air Quality Control Region.

South Central Coast Intrastate Air Quality Control Region.

Southeast Desert Intrastate Air Quality Control Region.

Great Falls Intrastate Air Quality Control Region.

Helena Intrastate Air Quality Control Region.

Miles City Intrastate Air Quality Control Region.

Missoula Intrastate Air Quality Control Region.

Comanche Intrastate Air Quality Control Region.

Grand Mesa Intrastate Air Quality Control Region.

Pawnee Intrastate Air Quality Control Region.

San Isabel Intrastate Air Quality Control Region.

San Luis Intrastate Air Quality Control Region.

Yampa Intrastate Air Quality Control Region.

Southern Delaware Intrastate Air Quality Control Region.

Aroostook Intrastate Air Quality Control Region.

Down East Intrastate Air Quality Control Region.

Northwest Maine Intrastate Air Quality Control Region.

Eastern Connecticut Intrastate Air Quality Control Region.

Northwestern Connecticut Intrastate Air Quality Control Region.

Northern Washington Intrastate Air Quality Control Region.

Olympic-Northwest Washington Intrastate Air Quality Control Region.

South Central Washington Intrastate Air Quality Control Region.

Eastern Idaho Intrastate Air Quality Control Region.

Appalachian Intrastate Air Quality Control Region.

Bluegrass Intrastate Air Quality Control Region.

North Central Kentucky Intrastate Air Quality Control Region.

South Central Kentucky Intrastate Air Quality Control Region.

Central Michigan Intrastate Air Quality Control Region.

South Central Michigan Intrastate Air Quality Control Region.

Upper Michigan Intrastate Air Quality Control Region.

East Alabama Intrastate Air Quality Control Region.

Metropolitan Columbus Intrastate Air Quality Control Region.

Mansfield-Marion Intrastate Air Quality Control Region.

Northwest Ohio Intrastate Air Quality Control Region.

Sandusky Intrastate Air Quality Control Region.

Wilmington-Chillicothe-Logan Intrastate Air Quality Control Region.

Zanesville-Cambridge Intrastate Air Quality Control Region.

Casper Intrastate Air Quality Control Region.

Black Hills-Rapid City Intrastate Air Quality Control Region.

East Central Indiana Intrastate Air Quality Control Region.

Northeast Indiana Intrastate Air Quality Control Region.

Southern Indiana Intrastate Air Quality Control Region.

Wabash Valley Intrastate Air Quality Control Region.

Central Oregon Intrastate Air Quality Control Region.

Eastern Oregon Intrastate Air Quality Control Region.

Southwest Oregon Intrastate Air Quality Control Region.

Lincoln-Beatrice-Fairbury Intrastate Air Quality Control Region.

Allegheny Intrastate Air Quality Control Region.

Central West Virginia Intrastate Air Quality Control Region.

Eastern Panhandle Intrastate Air Quality Control Region.

Kanawha Valley Intrastate Air Quality Control Region.

North Central West Virginia Intrastate Air Quality Control Region.

Southern West Virginia Intrastate Air Quality Control Region.

Central Georgia Intrastate Air Quality Control Region.

Northeast Georgia Intrastate Air Quality Control Region.

Southwest Georgia Intrastate Air Quality Control Region.

Upper Rio Grande Valley Intrastate Air Quality Control Region.

Northeastern Plains Intrastate Air Quality Control Region.

Southwestern Mountains-Augustine Plains Intrastate Air Quality Control Region.

Pecos-Permian Basin Intrastate Air Quality Control Region.

Central Minnesota Intrastate Air Quality Control Region.

Northwest Minnesota Intrastate Air Quality Control Region.

Southwest Minnesota Intrastate Air Quality Control Region.

Northern Alaska Intrastate Air Quality Control Region.

South Central Alaska Intrastate Air Quality Control Region.

Southeastern Alaska Intrastate Air Quality Control Region.

Northwest Oregon Intrastate Air Quality Control Region.

North Central Kansas Intrastate Air Quality Control Region.

Northeast Kansas Intrastate Air Quality Control Region.

Northwest Kansas Intrastate Air Quality Control Region.

South Central Kansas Intrastate Air Quality Control Region.

Southeast Kansas Intrastate Air Quality Control Region.

Southwest Kansas Intrastate Air Quality Control Region.

Northeast Iowa Intrastate Air Quality Control Region.

North Central Iowa Intrastate Air Quality Control Region.

Northwest Iowa Intrastate Air Quality Control Region.

Southwest Iowa Intrastate Air Quality Control Region.

South Central Iowa Intrastate Air Quality Control Region.

Southeast Iowa Intrastate Air Quality Control Region.

North Central Illinois Intrastate Air Quality Control Region.

East Central Illinois Intrastate Air Quality Control Region.

West Central Illinois Intrastate Air Quality Control Region.

Southeast Illinois Intrastate Air Quality Control Region.

Alabama and Tombigbee Rivers Intrastate Air Quality Control Region.

Southeast Alabama Intrastate Air Quality Control Region.

Mohave-Yuma Intrastate Air Quality Control Region.

Pima Intrastate Air Quality Control Region.

Northern Arizona Intrastate Air Quality Control Region.

Central Arizona Intrastate Air Quality Control Region.

Southeast Arizona Intrastate Air Quality Control Region.

Lake County Intrastate Air Quality Control Region.

Mountain Counties Intrastate Air Quality Control Region.

Lake Tahoe Intrastate Air Quality Control Region.

Nevada Intrastate Air Quality Control Region.

Scope.

Alabama.

Alaska.

Arizona.

Arkansas.

California.

Colorado.

Connecticut.

Delaware.

District of Columbia.

Florida.

Georgia.

Hawaii.

Idaho.

Illinois.

Indiana.

Iowa.

Kansas.

Kentucky.

Louisiana.

Maine.

Maryland.

Massachusetts.

Michigan.

Minnesota.

Mississippi.

Missouri.

Montana.

Nebraska.

Nevada.

New Hampshire.

New Jersey.

New Mexico.

New York.

North Carolina.

North Dakota.

Ohio.

Oklahoma.

Oregon.

Pennsylvania.

Rhode Island.

South Carolina.

South Dakota.

Tennessee.

Texas.

Utah.

Vermont.

Virginia.

Washington.

West Virginia.

Wisconsin.

Wyoming.

American Samoa.

Guam.

Northern Mariana Islands.

Puerto Rico.

Virgin Islands.

Scope.

Alabama.

Alaska.

Arizona.

Arkansas.

California.

Colorado.

Florida.

Georgia.

Hawaii.

Idaho.

Kentucky.

Louisiana.

Maine.

Michigan.

Minnesota.

Missouri.

Montana.

Nevada.

New Hampshire.

New Jersey.

New Mexico.

North Carolina.

North Dakota.

Oklahoma.

Oregon.

South Carolina.

South Dakota.

Tennessee.

Texas.

Utah.

Vermont.

Virgin Islands.

Virginia.

Washington.

West Virginia.

Wyoming.

New Brunswick, Canada.

Scope.

Ozone Transport Region.