40 CFR Appendix A
Air Quality Control Regions (AQCR's)
June 9, 2020
Open Table
| AQCR No. | |
|---|---|
| Alabama: | |
| Alabama and Tombigbee Rivers | 1 |
| Columbus-Phenix City | 2 |
| East Alabama | 3 |
| Metropolitan Birmingham | 4 |
| Mobile-Pensacola-Panama City-Southern Mississippi (Fla., Miss.) | 5 |
| Southeast Alabama | 6 |
| Tennessee River Valley-Cumberland Mountains (Tenn.) | 7 |
| Alaska: | |
| Cook Inlet | 8 |
| Northern Alaska | 9 |
| South Central Alaska | 10 |
| Southeastern Alaska | 11 |
| Arizona: | |
| Arizona-New Mexico Southern Border (N. Mex.) | 12 |
| Clark-Mohave | 13 |
| Four Corners (Colo., N. Mex., Utah) | 14 |
| Phoenix-Tucson | 15 |
| Arkansas: | |
| Central Arkansas | 16 |
| Metropolitan Fort Smith | 17 |
| Metropolitan Memphis | 18 |
| Monroe-El Dorado (La.) | 19 |
| Northeast Arkansas | 20 |
| Northwest Arkansas | 21 |
| Shreveport-Texarkana-Tyler (La., Okla., Texas) | 22 |
| California: | |
| Great Basin Valley | 23 |
| Metropolitan Los Angeles | 24 |
| North Central Coast | 25 |
| North Coast | 26 |
| Northeast Plateau | 27 |
| Sacramento Valley | 28 |
| San Diego | 29 |
| San Francisco Bay Area | 30 |
| San Joaquin Valley | 31 |
| South Central Coast | 32 |
| Southeast Desert | 33 |
| Colorado: | |
| Comanche | 34 |
| Four Corners (Ariz., N. Mex., Utah) | 14 |
| Grand Mesa | 35 |
| Metropolitan Denver | 36 |
| Pawnee | 37 |
| San Isabel | 38 |
| San Luis | 39 |
| Yampa | 40 |
| Connecticut: | |
| Eastern Connecticut | 41 |
| Hartford-New Haven-Springfield (Mass.) | 42 |
| New Jersey-New York-Connecticut (N.J., N.Y.) | 43 |
| Northwestern Connecticut | 44 |
| Delaware: | |
| Metropolitan Philadelphia (N.J., Pa.) | 45 |
| Southern Delaware | 46 |
| District of Columbia: | |
| National Capital (Md.) | 47 |
| Florida: | |
| Central Florida | 48 |
| Jacksonville-Brunswick (Ga.) | 49 |
| Mobile-Pensacola-Panama City-Southern Mississippi (Ala., Miss.) | 5 |
| Southeast Florida | 50 |
| Southwest Florida | 51 |
| West Central Florida | 52 |
| Georgia: | |
| Augusta-Aiken (S.C.) | 53 |
| Central Georgia | 54 |
| Chattanooga (Tenn.) | 55 |
| Columbus-Phenix City (Ala.) | 2 |
| Jacksonville-Brunswick (Fla.) | 49 |
| Metropolitan Atlanta | 56 |
| Northeast Georgia | 57 |
| Savannah-Beaufort (S.C.) | 58 |
| Southwest Georgia | 59 |
| Hawaii: | |
| Entire State | 60 |
| Idaho: | |
| Eastern Idaho | 61 |
| Eastern Washington-Northern Idaho (Wash.) | 62 |
| Idaho | 63 |
| Metropolitan Boise | 64 |
| Illinois: | |
| Burlington-Keokuk (Iowa) | 65 |
| East Central Illinois | 66 |
| Metropolitan Chicago (Ind.) | 67 |
| Metropolitan Dubuque (Iowa, Wis.) | 68 |
| Metropolitan Quad Cities (Iowa) | 69 |
| Metropolitan St. Louis (Mo.) | 70 |
| North Central Illinois | 71 |
| Paducah-Cairo (Ky.) | 72 |
| Rockford-Janesville-Beloit (Wis.) | 73 |
| Southeast Illinois | 74 |
| West Central Illinois | 75 |
| Indiana: | |
| East Central Indiana | 76 |
| Evansville-Owensboro-Henderson (Ky.) | 77 |
| Louisville (Ky.) | 78 |
| Metropolitan Chicago (Ill.) | 67 |
| Metropolitan Cincinnati (Ky., Ohio) | 79 |
| Metropolitan Indianapolis | 80 |
| Northeast Indiana | 81 |
| South Bend-Elkhart-Benton Harbor (Mich.) | 82 |
| Southern Indiana | 83 |
| Wabash Valley | 84 |
| Iowa: | |
| Burlington-Keokuk (Ill.) | 65 |
| Metropolitan Dubuque (Ill., Wis.) | 68 |
| Metropolitan Omaha-Council Bluffs (Nebr.) | 85 |
| Metropolitan Quad Cities (Ill.) | 69 |
| Metropolitan Sioux City (Nebr., S. Dak.) | 86 |
| Metropolitan Sioux Falls (S. Dak.) | 87 |
| Northeast Iowa | 88 |
| North Central Iowa | 89 |
| Northwest Iowa | 90 |
| Southeast Iowa | 91 |
| South Central Iowa | 92 |
| Southwest Iowa | 93 |
| Kansas: | |
| Metropolitan Kansas City (Mo.) | 94 |
| Northeast Kansas | 95 |
| North Central Kansas | 96 |
| Northwest Kansas | 97 |
| Southeast Kansas | 98 |
| South Central Kansas | 99 |
| Southwest Kansas | 100 |
| Kentucky: | |
| Appalachian | 101 |
| Bluegrass | 102 |
| Evansville-Owensboro-Henderson (Ind.) | 77 |
| Huntington-Ashland-Portsmouth-Ironton (Ohio, W. Va.) | 103 |
| Louisville (Ind.) | 78 |
| Metropolitan Cincinnati (Ind., Ohio) | 79 |
| North Central Kentucky | 104 |
| Paducah-Cairo (Ill.) | 72 |
| South Central Kentucky | 105 |
| Louisiana: | |
| Monroe-El Dorado (Ark.) | 19 |
| Shreveport-Texarkana-Tyler (Ark., Okla., Tex.) | 22 |
| Southern Louisiana-Southeast Texas (Tex.) | 106 |
| Maine: | |
| Androscoggin Valley (N.H.) | 107 |
| Aroostook | 108 |
| Down East | 109 |
| Metropolitan Portland | 110 |
| Northwest Maine | 111 |
| Maryland: | |
| Central Maryland | 112 |
| Cumberland-Keyser (W. Va.) | 113 |
| Eastern Shore | 114 |
| Metropolitan Baltimore | 115 |
| National Capital (D.C.) | 47 |
| Southern Maryland | 116 |
| Massachusetts: | |
| Berkshire | 117 |
| Central Massachusetts | 118 |
| Hartford-New Haven-Springfield (Conn.) | 42 |
| Metropolitan Boston | 119 |
| Metropolitan Providence (R.I.) | 120 |
| Merrimack Valley-Southern New Hampshire (N.H.) | 121 |
| Michigan: | |
| Central Michigan | 122 |
| Metropolitan Detroit-Port Huron | 123 |
| Metropolitan Toledo (Ohio) | 124 |
| South Bend-Elkhart-Benton Harbor (Ind.) | 82 |
| South Central Michigan | 125 |
| Upper Michigan | 126 |
| Minnesota: | |
| Central Minnesota | 127 |
| Southeast Minnesota-La Crosse (Wis.) | 128 |
| Duluth-Superior (Wis.) | 129 |
| Metropolitan Fargo-Moorhead (N. Dak.) | 130 |
| Minneapolis-St. Paul | 131 |
| Northwest Minnesota | 132 |
| Southwest Minnesota | 133 |
| Mississippi: | |
| Metropolitan Memphis (Ark., Tenn.) | 18 |
| Mississippi Delta | 134 |
| Mobile-Pensacola-Panama City-Southern Mississippi (Ala., Fla.) | 5 |
| Northeast Mississippi | 135 |
| Missouri: | |
| Metropolitan Kansas City (Kans.) | 94 |
| Metropolitan St. Louis (Ill.) | 70 |
| Northern Missouri | 137 |
| Southeast Missouri | 138 |
| Southwest Missouri | 139 |
| Montana: | |
| Billings | 140 |
| Great Falls | 141 |
| Helena | 142 |
| Miles City | 143 |
| Missoula | 144 |
| Nebraska: | |
| Lincoln-Beatrice-Fairbury | 145 |
| Metropolitan Omaha-Council Bluffs (Iowa) | 85 |
| Metropolitan Sioux City (Iowa, S. Dak.) | 86 |
| Nebraska | 146 |
| Nevada: | |
| Clark-Mohave (Ariz.) | 13 |
| Nevada | 147 |
| Northwest Nevada | 148 |
| New Hampshire: | |
| Androscoggin Valley (Maine) | 107 |
| Merrimack Valley-Southern New Hampshire (Mass.) | 121 |
| New Hampshire | 149 |
| New Jersey: | |
| Metropolitan Philadelphia (Del., Pa.) | 45 |
| New Jersey | 150 |
| New Jersey-New York-Connecticut (N.Y., Conn.) | 43 |
| Northeast Pennsylvania-Upper Delaware Valley (Pa.) | 151 |
| New Mexico: | |
| Albuquerque-Mid Rio Grande | 152 |
| Arizona-New Mexico Southern Border (Ariz.) | 12 |
| El Paso-Las Cruces-Alamogordo (Tex.) | 153 |
| Four Corners (Ariz., Colo., Utah) | 14 |
| Northeastern Plains | 154 |
| Pecos-Permian Basin | 155 |
| Southwestern Mountains-Augustine Plains | 156 |
| Upper Rio Grande Valley | 157 |
| New York: | |
| Central New York | 158 |
| Champlain Valley (Vt.) | 159 |
| Genesee-Finger Lakes | 160 |
| Hudson Valley | 161 |
| New Jersey-New York-Connecticut (N.J., Conn.) | 43 |
| Niagara Frontier | 162 |
| Southern Tier East | 163 |
| Southern Tier West | 164 |
| North Carolina: | |
| Eastern Mountain | 165 |
| Eastern Piedmont | 166 |
| Metropolitan Charlotte (S.C.) | 167 |
| Northern Coastal Plain | 168 |
| Northern Piedmont | 136 |
| Sandhills | 169 |
| Southern Coastal Plain | 170 |
| Western Mountain | 171 |
| North Dakota: | |
| Metropolitan Fargo-Moorhead (Minn.) | 130 |
| North Dakota | 172 |
| Ohio: | |
| Dayton | 173 |
| Greater Metropolitan Cleveland | 174 |
| Huntington-Ashland-Portsmouth-Ironton (Ky., W. Va.) | 103 |
| Mansfield-Marion | 175 |
| Metropolitan Cincinnati (Ind., Ky.) | 79 |
| Metropolitan Columbus | 176 |
| Metropolitan Toledo (Mich.) | 124 |
| Northwest Ohio | 177 |
| Northwest Pennsylvania-Youngstown (Pa.) | 178 |
| Parkersburg-Marietta (W. Va.) | 179 |
| Sandusky | 180 |
| Steubenville-Weirton-Wheeling (W. Va.) | 181 |
| Wilmington-Chillicothe-Logan | 182 |
| Zanesville-Cambridge | 183 |
| Oklahoma: | |
| Central Oklahoma | 184 |
| Metropolitan Fort Smith (Ark.) | 17 |
| North Central Oklahoma | 185 |
| Northeastern Oklahoma | 186 |
| Northwestern Oklahoma | 187 |
| Shreveport-Texarkana-Tyler (Ark., La., Texas) | 22 |
| Southeastern Oklahoma | 188 |
| Southwestern Oklahoma | 189 |
| Oregon: | |
| Central Oregon | 190 |
| Eastern Oregon | 191 |
| Northwest Oregon | 192 |
| Portland (Wash.) | 193 |
| Southwest Oregon | 194 |
| Pennsylvania: | |
| Central Pennsylvania | 195 |
| Metropolitan Philadelphia (Del., N.J.) | 45 |
| Northeast Pennsylvania-Upper Delaware Valley (N.J.) | 151 |
| Northwest Pennsylvania-Youngstown (Ohio) | 178 |
| South Central Pennsylvania | 196 |
| Southwest Pennsylvania | 197 |
| Rhode Island: | |
| Metropolitan Providence (Mass.) | 120 |
| South Carolina: | |
| Augusta-Aiken (Ga.) | 53 |
| Camden-Sumter | 198 |
| Charleston | 199 |
| Columbia | 200 |
| Florence | 201 |
| Greenville-Spartanburg | 202 |
| Greenwood | 203 |
| Georgetown | 204 |
| Metropolitan Charlotte (N.C.) | 167 |
| Savannah-Beaufort (Ga.) | 58 |
| South Dakota: | |
| Black Hills-Rapid City | 205 |
| Metropolitan Sioux City (Iowa, Neb.) | 86 |
| Metropolitan Sioux Falls (Iowa) | 87 |
| South Dakota | 206 |
| Tennessee: | |
| Chattanooga (Ga.) | 55 |
| Eastern Tennessee-Southwestern Virginia (Va.) | 207 |
| Metropolitan Memphis (Ark., Miss.) | 18 |
| Middle Tennessee | 208 |
| Tennessee River Valley-Cumberland Mountains (Ala.) | 7 |
| Western Tennessee | 209 |
| Texas: | |
| Abilene-Wichita Falls | 210 |
| Amarillo-Lubbock | 211 |
| Austin-Waco | 212 |
| Brownsville-Laredo | 213 |
| Corpus Christi-Victoria | 214 |
| El Paso-Las Cruces-Alamagordo (N. Mex.) | 153 |
| Metropolitan Dallas-Ft. Worth | 215 |
| Metropolitan Houston-Galveston | 216 |
| Metropolitan San Antonio | 217 |
| Midland-Odessa-San Angelo | 218 |
| Shreveport-Texarkana-Tyler (Ark., La., Okla.) | 22 |
| Southern Louisiana-Southeast Texas (La.) | 106 |
| Utah: | |
| Four Corners (Ariz., Colo., N. Mex.) | 14 |
| Utah | 219 |
| Wasatch Front | 220 |
| Vermont: | |
| Champlain Valley (N.Y.) | 159 |
| Vermont | 221 |
| Virginia: | |
| Central Virginia | 222 |
| Eastern Tennessee-Southwestern Virginia (Tenn.) | 207 |
| Hampton Roads | 223 |
| National Capital (D.C., Md.) | 47 |
| Northeastern Virginia | 224 |
| State Capital | 225 |
| Valley of Virginia | 226 |
| Washington: | |
| Eastern Washington-Northern Idaho (Idaho) | 62 |
| Northern Washington | 227 |
| Olympia-Northwest Washington | 228 |
| Portland (Ore.) | 193 |
| Puget Sound | 229 |
| South Central Washington | 230 |
| West Virginia: | |
| Allegheny | 231 |
| Central West Virginia | 232 |
| Cumberland-Keyser (Md.) | 113 |
| Eastern Panhandle | 233 |
| Huntington-Ashland-Portsmouth-Iron- ton (Ky., Ohio) | 103 |
| Kanawha Valley | 234 |
| North Central West Virginia | 235 |
| Parkersburg-Marietta (Ohio) | 179 |
| Southern West Virginia | 236 |
| Steubenville-Wierton-Wheeling (Ohio) | 181 |
| Wisconsin: | |
| Duluth-Superior (Minn.) | 129 |
| Lake Michigan | 237 |
| Metropolitan Dubuque (Ill., Iowa) | 68 |
| North Central Wisconsin | 238 |
| Rockford- Janesville- Beloit (Ill.) | 73 |
| Southeastern Wisconsin | 239 |
| Southeast Minnesota- La Crosse (Minn.) | 128 |
| Southern Wisconsin | 240 |
| Wyoming: | |
| Casper | 241 |
| Metropolitan Cheyenne | 242 |
| Wyoming | 243 |
| Puerto Rico: | |
| Puerto Rico | 244 |
| American Samoa: | |
| American Samoa | 245 |
| Guam: | |
| Guam | 246 |
| U.S. Virgin Islands: | |
| U.S. Virgin Islands | 247 |
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