Part 81 - DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES  


Subpart A—Meaning of Terms
§ 81.1 Definitions.
Subpart B—Designation of Air Quality Control Regions
§ 81.11 Scope.
§ 81.12 National Capital Interstate Air Quality Control Region (District of Columbia, Maryland, and Virginia).
§ 81.13 New Jersey-New York-Connecticut Interstate Air Quality Control Region.
§ 81.14 Metropolitan Chicago Interstate Air Quality Control Region.
§ 81.15 Metropolitan Philadelphia Interstate Air Quality Control Region (Pennsylvania-New Jersey-Delaware).
§ 81.16 Metropolitan Denver Intrastate Air Quality Control Region.
§ 81.17 Metropolitan Los Angeles Air Quality Control Region.
§ 81.18 Metropolitan St. Louis Interstate Air Quality Control Region.
§ 81.19 Metropolitan Boston Intrastate Air Quality Control Region.
§ 81.20 Metropolitan Cincinnati Interstate Air Quality Control Region.
§ 81.21 San Francisco Bay Area Intrastate Air Quality Control Region.
§ 81.22 Greater Metropolitan Cleveland Intrastate Air Quality Control Region.
§ 81.23 Southwest Pennsylvania Intrastate Air Quality Control Region.
§ 81.24 Niagara Frontier Intrastate Air Quality Control Region.
§ 81.25 Metropolitan Kansas City Interstate Air Quality Control Region.
§ 81.26 Hartford-New Haven-Springfield Interstate Air Quality Control Region.
§ 81.27 Minneapolis-St. Paul Intrastate Air Quality Control Region.
§ 81.28 Metropolitan Baltimore Intrastate Air Quality Control Region.
§ 81.29 Metropolitan Indianapolis Intrastate Air Quality Control Region.
§ 81.30 Southeastern Wisconsin Intrastate Air Quality Control Region.
§ 81.31 Metropolitan Providence Interstate Air Quality Control Region.
§ 81.32 Puget Sound Intrastate Air Quality Control Region.
§ 81.33 Steubenville-Weirton-Wheeling Interstate Air Quality Control Region.
§ 81.34 Metropolitan Dayton Intrastate Air Quality Control Region.
§ 81.35 Louisville Interstate Air Quality Control Region.
§ 81.36 Maricopa Intrastate Air Quality Control Region.
§ 81.37 Metropolitan Detroit-Port Huron Intrastate Air Quality Control Region.
§ 81.38 Metropolitan Houston-Galveston Intrastate Air Quality Control Region.
§ 81.39 Metropolitan Dallas-Fort Worth Intrastate Air Quality Control Region.
§ 81.40 Metropolitan San Antonio Intrastate Air Quality Control Region.
§ 81.41 Metropolitan Birmingham Intrastate Air Quality Control Region.
§ 81.42 Chattanooga Interstate Air Quality Control Region.
§ 81.43 Metropolitan Toledo Interstate Air Quality Control Region.
§ 81.44 Metropolitan Memphis Interstate Air Quality Control Region.
§ 81.45 Metropolitan Atlanta Intrastate Air Quality Control Region.
§ 81.46 U.S. Virgin Islands Air Quality Control Region.
§ 81.47 Central Oklahoma Intrastate Air Quality Control Region.
§ 81.48 Champlain Valley Interstate Air Quality Control Region.
§ 81.49 Southeast Florida Intrastate Air Quality Control Region.
§ 81.50 Metropolitan Omaha-Council Bluffs Interstate Air Quality Control Region.
§ 81.51 Portland Interstate Air Quality Control Region.
§ 81.52 Wasatch Front Intrastate Air Quality Control Region.
§ 81.53 Southern Louisiana-Southeast Texas Interstate Air Quality Control Region.
§ 81.54 Cook Inlet Intrastate Air Quality Control Region.
§ 81.55 Northeast Pennsylvania-Upper Delaware Valley Interstate Air Quality Control Region.
§ 81.57 Eastern Tennessee-Southwestern Virginia Interstate Air Quality Control Region.
§ 81.58 Columbus (Georgia)-Phenix City (Alabama) Interstate Air Quality Control Region.
§ 81.59 Cumberland-Keyser Interstate Air Quality Control Region.
§ 81.60 Duluth (Minnesota)-Superior (Wisconsin) Interstate Air Quality Control Region.
§ 81.61 Evansville (Indiana)-Owensboro-Henderson (Kentucky) Interstate Air Quality Control Region.
§ 81.62 Northeast Mississippi Intrastate Air Quality Control Region.
§ 81.63 Metropolitan Fort Smith Interstate Air Quality Control Region.
§ 81.64 Huntington (West Virginia)-Ashland (Kentucky)-Portsmouth-Ironton (Ohio) Interstate Air Quality Control Region.
§ 81.65 Joplin (Missouri)-Northeast Oklahoma Interstate Air Quality Control Region.
§ 81.66 Southeast Minnesota-La Crosse (Wisconsin) Interstate Air Quality Control Region.
§ 81.67 Lake Michigan Intrastate Air Quality Control Region.
§ 81.68 Mobile (Alabama)-Pensacola-Panama City (Florida)-Southern Mississippi Interstate Air Quality Control Region.
§ 81.69 Paducah (Kentucky)-Cairo (Illinois) Interstate Air Quality Control Region.
§ 81.70 Parkersburg (West Virginia)-Marietta (Ohio) Interstate Air Quality Control Region.
§ 81.71 Rockford (Illinois)-Janesville-Beloit (Wisconsin) Interstate Air Quality Control Region.
§ 81.72 Tennessee River Valley (Alabama)-Cumberland Mountains (Tennessee) Interstate Air Quality Control Region.
§ 81.73 South Bend-Elkhart (Indiana)-Benton Harbor (Michigan) Interstate Air Quality Control Region.
§ 81.74 Northwest Pennsylvania-Youngstown Interstate Air Quality Control Region.
§ 81.75 Metropolitan Charlotte Interstate Air Quality Control Region.
§ 81.76 State of Hawaii Air Quality Control Region.
§ 81.77 Puerto Rico Air Quality Control Region.
§ 81.78 Metropolitan Portland Intrastate Air Quality Control Region.
§ 81.79 Northeastern Oklahoma Intrastate Air Quality Control Region.
§ 81.80 Las Vegas Intrastate Air Quality Control Region.
§ 81.81 Merrimack Valley-Southern New Hampshire Interstate Air Quality Control Region.
§ 81.82 El Paso-Las Cruces-Alamogordo Interstate Air Quality Control Region.
§ 81.83 Albuquerque-Mid Rio Grande Intrastate Air Quality Control Region.
§ 81.84 Metropolitan Fargo-Moorhead Interstate Air Quality Control Region.
§ 81.85 Metropolitan Sioux Falls Interstate Air Quality Control Region.
§ 81.86 Metropolitan Sioux City Interstate Air Quality Control Region.
§ 81.87 Metropolitan Boise Intrastate Air Quality Control Region.
§ 81.88 Billings Intrastate Air Quality Control Region.
§ 81.89 Metropolitan Cheyenne Intrastate Air Quality Control Region.
§ 81.90 Androscoggin Valley Interstate Air Quality Control Region.
§ 81.91 Jacksonville (Florida)-Brunswick (Georgia) Interstate Air Quality Control Region.
§ 81.92 Monroe (Louisiana)—El Dorado (Arkansas) Interstate Air Quality Control Region.
§ 81.93 Hampton Roads Intrastate Air Quality Control Region.
§ 81.94 Shreveport-Texarkana-Tyler Interstate Air Quality Control Region.
§ 81.95 Central Florida Intrastate Air Quality Control Region.
§ 81.96 West Central Florida Intrastate Air Quality Control Region.
§ 81.97 Southwest Florida Intrastate Air Quality Control Region.
§ 81.98 Burlington-Keokuk Interstate Air Quality Control Region.
§ 81.99 New Mexico Southern Border Intrastate Air Quality Control Region.
§ 81.100 Eastern Washington-Northern Idaho Interstate Air Quality Control Region.
§ 81.101 Metropolitan Dubuque Interstate Air Quality Control Region.
§ 81.102 Metropolitan Quad Cities Interstate Air Quality Control Region.
§ 81.104 Central Pennsylvania Intrastate Air Quality Control Region.
§ 81.105 South Central Pennsylvania Intrastate Air Quality Control Region.
§ 81.106 Greenville-Spartanburg Intrastate Air Quality Control Region.
§ 81.107 Greenwood Intrastate Air Quality Control Region.
§ 81.108 Columbia Intrastate Air Quality Control Region.
§ 81.109 Florence Intrastate Air Quality Control Region.
§ 81.110 Camden-Sumter Intrastate Air Quality Control Region.
§ 81.111 Georgetown Intrastate Air Quality Control Region.
§ 81.112 Charleston Intrastate Air Quality Control Region.
§ 81.113 Savannah (Georgia)-Beaufort (South Carolina) Interstate Air Quality Control Region.
§ 81.114 Augusta (Georgia)-Aiken (South Carolina) Interstate Air Quality Control Region.
§ 81.115 Northwest Nevada Intrastate Air Quality Control Region.
§ 81.116 Northern Missouri Intrastate Air Quality Control Region.
§ 81.117 Southeast Missouri Intrastate Air Quality Control Region.
§ 81.118 Southwest Missouri Intrastate Air Quality Control Region.
§ 81.119 Western Tennessee Intrastate Air Quality Control Region.
§ 81.120 Middle Tennessee Intrastate Air Quality Control Region.
§ 81.121 Four Corners Interstate Air Quality Control Region.
§ 81.122 Mississippi Delta Intrastate Air Quality Control Region.
§ 81.123 Southeastern Oklahoma Intrastate Air Quality Control Region.
§ 81.124 North Central Oklahoma Intrastate Air Quality Control Region.
§ 81.125 Southwestern Oklahoma Intrastate Air Quality Control Region.
§ 81.126 Northwestern Oklahoma Intrastate Air Quality Control Region.
§ 81.127 Central New York Intrastate Air Quality Control Region.
§ 81.128 Genesee-Finger Lakes Intrastate Air Quality Control Region.
§ 81.129 Hudson Valley Intrastate Air Quality Control Region.
§ 81.130 Southern Tier East Intrastate Air Quality Control Region.
§ 81.131 Southern Tier West Intrastate Air Quality Control Region.
§ 81.132 Abilene-Wichita Falls Intrastate Air Quality Control Region.
§ 81.133 Amarillo-Lubbock Intrastate Air Quality Control Region.
§ 81.134 Austin-Waco Intrastate Air Quality Control Region.
§ 81.135 Brownsville-Laredo Intrastate Air Quality Control Region.
§ 81.136 Corpus Christi-Victoria Intrastate Air Quality Control Region.
§ 81.137 Midland-Odessa-San Angelo Intrastate Air Quality Control Region.
§ 81.138 Central Arkansas Intrastate Air Quality Control Region.
§ 81.139 Northeast Arkansas Intrastate Air Quality Control Region.
§ 81.140 Northwest Arkansas Intrastate Air Quality Control Region.
§ 81.141 Berkshire Intrastate Air Quality Control Region.
§ 81.142 Central Massachusetts Intrastate Air Quality Control Region.
§ 81.143 Central Virginia Intrastate Air Quality Control Region.
§ 81.144 Northeastern Virginia Intrastate Air Quality Control Region.
§ 81.145 State Capital Intrastate Air Quality Control Region.
§ 81.146 Valley of Virginia Intrastate Air Quality Control Region.
§ 81.147 Eastern Mountain Intrastate Air Quality Control Region.
§ 81.148 Eastern Piedmont Intrastate Air Quality Control Region.
§ 81.149 Northern Coastal Plain Intrastate Air Quality Control Region.
§ 81.150 Northern Piedmont Intrastate Air Quality Control Region.
§ 81.151 Sandhills Intrastate Air Quality Control Region.
§ 81.152 Southern Coastal Plain Intrastate Air Quality Control Region.
§ 81.153 Western Mountain Intrastate Air Quality Control Region.
§ 81.154 Eastern Shore Intrastate Air Quality Control Region.
§ 81.155 Central Maryland Intrastate Air Quality Control Region.
§ 81.156 Southern Maryland Intrastate Air Quality Control Region.
§ 81.157 North Central Wisconsin Intrastate Air Quality Control Region.
§ 81.158 Southern Wisconsin Intrastate Air Quality Control Region.
§ 81.159 Great Basin Valley Intrastate Air Quality Control Region.
§ 81.160 North Central Coast Intrastate Air Quality Control Region.
§ 81.161 North Coast Intrastate Air Quality Control Region.
§ 81.162 Northeast Plateau Intrastate Air Quality Control Region.
§ 81.163 Sacramento Valley Intrastate Air Quality Control Region.
§ 81.164 San Diego Intrastate Air Quality Control Region.
§ 81.165 San Joaquin Valley Intrastate Air Quality Control Region.
§ 81.166 South Central Coast Intrastate Air Quality Control Region.
§ 81.167 Southeast Desert Intrastate Air Quality Control Region.
§ 81.168 Great Falls Intrastate Air Quality Control Region.
§ 81.169 Helena Intrastate Air Quality Control Region.
§ 81.170 Miles City Intrastate Air Quality Control Region.
§ 81.171 Missoula Intrastate Air Quality Control Region.
§ 81.172 Comanche Intrastate Air Quality Control Region.
§ 81.173 Grand Mesa Intrastate Air Quality Control Region.
§ 81.174 Pawnee Intrastate Air Quality Control Region.
§ 81.175 San Isabel Intrastate Air Quality Control Region.
§ 81.176 San Luis Intrastate Air Quality Control Region.
§ 81.177 Yampa Intrastate Air Quality Control Region.
§ 81.178 Southern Delaware Intrastate Air Quality Control Region.
§ 81.179 Aroostook Intrastate Air Quality Control Region.
§ 81.181 Down East Intrastate Air Quality Control Region.
§ 81.182 Northwest Maine Intrastate Air Quality Control Region.
§ 81.183 Eastern Connecticut Intrastate Air Quality Control Region.
§ 81.184 Northwestern Connecticut Intrastate Air Quality Control Region.
§ 81.185 Northern Washington Intrastate Air Quality Control Region.
§ 81.187 Olympic-Northwest Washington Intrastate Air Quality Control Region.
§ 81.189 South Central Washington Intrastate Air Quality Control Region.
§ 81.190 Eastern Idaho Intrastate Air Quality Control Region.
§ 81.191 Appalachian Intrastate Air Quality Control Region.
§ 81.192 Bluegrass Intrastate Air Quality Control Region.
§ 81.193 North Central Kentucky Intrastate Air Quality Control Region.
§ 81.194 South Central Kentucky Intrastate Air Quality Control Region.
§ 81.195 Central Michigan Intrastate Air Quality Control Region.
§ 81.196 South Central Michigan Intrastate Air Quality Control Region.
§ 81.197 Upper Michigan Intrastate Air Quality Control Region.
§ 81.199 East Alabama Intrastate Air Quality Control Region.
§ 81.200 Metropolitan Columbus Intrastate Air Quality Control Region.
§ 81.201 Mansfield-Marion Intrastate Air Quality Control Region.
§ 81.202 Northwest Ohio Intrastate Air Quality Control Region.
§ 81.203 Sandusky Intrastate Air Quality Control Region.
§ 81.204 Wilmington-Chillicothe-Logan Intrastate Air Quality Control Region.
§ 81.205 Zanesville-Cambridge Intrastate Air Quality Control Region.
§ 81.213 Casper Intrastate Air Quality Control Region.
§ 81.214 Black Hills-Rapid City Intrastate Air Quality Control Region.
§ 81.215 East Central Indiana Intrastate Air Quality Control Region.
§ 81.216 Northeast Indiana Intrastate Air Quality Control Region.
§ 81.217 Southern Indiana Intrastate Air Quality Control Region.
§ 81.218 Wabash Valley Intrastate Air Quality Control Region.
§ 81.219 Central Oregon Intrastate Air Quality Control Region.
§ 81.220 Eastern Oregon Intrastate Air Quality Control Region.
§ 81.221 Southwest Oregon Intrastate Air Quality Control Region.
§ 81.226 Lincoln-Beatrice-Fairbury Intrastate Air Quality Control Region.
§ 81.230 Allegheny Intrastate Air Quality Control Region.
§ 81.231 Central West Virginia Intrastate Air Quality Control Region.
§ 81.232 Eastern Panhandle Intrastate Air Quality Control Region.
§ 81.233 Kanawha Valley Intrastate Air Quality Control Region.
§ 81.234 North Central West Virginia Intrastate Air Quality Control Region.
§ 81.235 Southern West Virginia Intrastate Air Quality Control Region.
§ 81.236 Central Georgia Intrastate Air Quality Control Region.
§ 81.237 Northeast Georgia Intrastate Air Quality Control Region.
§ 81.238 Southwest Georgia Intrastate Air Quality Control Region.
§ 81.239 Upper Rio Grande Valley Intrastate Air Quality Control Region.
§ 81.240 Northeastern Plains Intrastate Air Quality Control Region.
§ 81.241 Southwestern Mountains-Augustine Plains Intrastate Air Quality Control Region.
§ 81.242 Pecos-Permian Basin Intrastate Air Quality Control Region.
§ 81.243 Central Minnesota Intrastate Air Quality Control Region.
§ 81.244 Northwest Minnesota Intrastate Air Quality Control Region.
§ 81.245 Southwest Minnesota Intrastate Air Quality Control Region.
§ 81.246 Northern Alaska Intrastate Air Quality Control Region.
§ 81.247 South Central Alaska Intrastate Air Quality Control Region.
§ 81.248 Southeastern Alaska Intrastate Air Quality Control Region.
§ 81.249 Northwest Oregon Intrastate Air Quality Control Region.
§ 81.250 North Central Kansas Intrastate Air Quality Control Region.
§ 81.251 Northeast Kansas Intrastate Air Quality Control Region.
§ 81.252 Northwest Kansas Intrastate Air Quality Control Region.
§ 81.253 South Central Kansas Intrastate Air Quality Control Region.
§ 81.254 Southeast Kansas Intrastate Air Quality Control Region.
§ 81.255 Southwest Kansas Intrastate Air Quality Control Region.
§ 81.256 Northeast Iowa Intrastate Air Quality Control Region.
§ 81.257 North Central Iowa Intrastate Air Quality Control Region.
§ 81.258 Northwest Iowa Intrastate Air Quality Control Region.
§ 81.259 Southwest Iowa Intrastate Air Quality Control Region.
§ 81.260 South Central Iowa Intrastate Air Quality Control Region.
§ 81.261 Southeast Iowa Intrastate Air Quality Control Region.
§ 81.262 North Central Illinois Intrastate Air Quality Control Region.
§ 81.263 East Central Illinois Intrastate Air Quality Control Region.
§ 81.264 West Central Illinois Intrastate Air Quality Control Region.
§ 81.265 Southeast Illinois Intrastate Air Quality Control Region.
§ 81.266 Alabama and Tombigbee Rivers Intrastate Air Quality Control Region.
§ 81.267 Southeast Alabama Intrastate Air Quality Control Region.
§ 81.268 Mohave-Yuma Intrastate Air Quality Control Region.
§ 81.269 Pima Intrastate Air Quality Control Region.
§ 81.270 Northern Arizona Intrastate Air Quality Control Region.
§ 81.271 Central Arizona Intrastate Air Quality Control Region.
§ 81.272 Southeast Arizona Intrastate Air Quality Control Region.
§ 81.273 Lake County Intrastate Air Quality Control Region.
§ 81.274 Mountain Counties Intrastate Air Quality Control Region.
§ 81.275 Lake Tahoe Intrastate Air Quality Control Region.
§ 81.276 Nevada Intrastate Air Quality Control Region.
Subpart C—Section 107 Attainment Status Designations
§ 81.300 Scope.
§ 81.301 Alabama.
§ 81.302 Alaska.
§ 81.303 Arizona.
§ 81.304 Arkansas.
§ 81.305 California.
§ 81.306 Colorado.
§ 81.307 Connecticut.
§ 81.308 Delaware.
§ 81.309 District of Columbia.
§ 81.310 Florida.
§ 81.311 Georgia.
§ 81.312 Hawaii.
§ 81.313 Idaho.
§ 81.314 Illinois.
§ 81.315 Indiana.
§ 81.316 Iowa.
§ 81.317 Kansas.
§ 81.318 Kentucky.
§ 81.319 Louisiana.
§ 81.320 Maine.
§ 81.321 Maryland.
§ 81.322 Massachusetts.
§ 81.323 Michigan.
§ 81.324 Minnesota.
§ 81.325 Mississippi.
§ 81.326 Missouri.
§ 81.327 Montana.
§ 81.328 Nebraska.
§ 81.329 Nevada.
§ 81.330 New Hampshire.
§ 81.331 New Jersey.
§ 81.332 New Mexico.
§ 81.333 New York.
§ 81.334 North Carolina.
§ 81.335 North Dakota.
§ 81.336 Ohio.
§ 81.337 Oklahoma.
§ 81.338 Oregon.
§ 81.339 Pennsylvania.
§ 81.340 Rhode Island.
§ 81.341 South Carolina.
§ 81.342 South Dakota.
§ 81.343 Tennessee.
§ 81.344 Texas.
§ 81.345 Utah.
§ 81.346 Vermont.
§ 81.347 Virginia.
§ 81.348 Washington.
§ 81.349 West Virginia.
§ 81.350 Wisconsin.
§ 81.351 Wyoming.
§ 81.352 American Samoa.
§ 81.353 Guam.
§ 81.354 Northern Mariana Islands.
§ 81.355 Puerto Rico.
§ 81.356 Virgin Islands.
Subpart D—Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value
§ 81.400 Scope.
§ 81.401 Alabama.
§ 81.402 Alaska.
§ 81.403 Arizona.
§ 81.404 Arkansas.
§ 81.405 California.
§ 81.406 Colorado.
§ 81.407 Florida.
§ 81.408 Georgia.
§ 81.409 Hawaii.
§ 81.410 Idaho.
§ 81.411 Kentucky.
§ 81.412 Louisiana.
§ 81.413 Maine.
§ 81.414 Michigan.
§ 81.415 Minnesota.
§ 81.416 Missouri.
§ 81.417 Montana.
§ 81.418 Nevada.
§ 81.419 New Hampshire.
§ 81.420 New Jersey.
§ 81.421 New Mexico.
§ 81.422 North Carolina.
§ 81.423 North Dakota.
§ 81.424 Oklahoma.
§ 81.425 Oregon.
§ 81.426 South Carolina.
§ 81.427 South Dakota.
§ 81.428 Tennessee.
§ 81.429 Texas.
§ 81.430 Utah.
§ 81.431 Vermont.
§ 81.432 Virgin Islands.
§ 81.433 Virginia.
§ 81.434 Washington.
§ 81.435 West Virginia.
§ 81.436 Wyoming.
§ 81.437 New Brunswick, Canada.
Appendix A to Part 81—Air Quality Control Regions (AQCR's)

Authority

42 U.S.C. 7401, et seq.

Source

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