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AQCRs (Air Quality Control Regions)
April 08, 2025
AQS Reference Table
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To sort on a column, click the column header. That column will be (subtly) highlighted. Particularly useful is the search box at the top of the table on the right. Separate mulitiple search terms with a space. Search looks across all columns in the table.
Downoad a csv version: aqcrs.csv
| AQCR Code | AQCR Name | State Name |
|---|---|---|
| 001 | ALABAMA AND TOMBIGBEE RIVERS | Alabama |
| 002 | COLUMBUS-PHENIX CITY | Alabama |
| 002 | COLUMBUS-PHENIX CITY | Georgia |
| 003 | EAST ALABAMA | Alabama |
| 004 | METROPOLITAN BIRMINGHAM | Alabama |
| 005 | MOBILE-PENSACOLA-PANAMA CITY-SOUTHERN MISSISSIPPI | Alabama |
| 005 | MOBILE-PENSACOLA-PANAMA CITY-SOUTHERN MISSISSIPPI | Florida |
| 005 | MOBILE-PENSACOLA-PANAMA CITY-SOUTHERN MISSISSIPPI | Mississippi |
| 006 | SOUTHEAST ALABAMA | Alabama |
| 007 | TENNESSEE RIVER VALLEY-CUMBERLAND MOUNTAINS | Alabama |
| 007 | TENNESSEE RIVER VALLEY-CUMBERLAND MOUNTAINS | Tennessee |
| 008 | COOK INLET | Alaska |
| 009 | NORTHERN ALASKA | Alaska |
| 010 | SOUTH CENTRAL ALASKA | Alaska |
| 011 | SOUTHEASTERN ALASKA | Alaska |
| 012 | ARIZONA-NEW MEXICO-SOUTHERN BORDER | Arizona |
| 012 | ARIZONA-NEW MEXICO-SOUTHERN BORDER | New Mexico |
| 013 | CLARK-MOHAVE | Arizona |
| 013 | CLARK-MOHAVE | Nevada |
| 014 | FOUR CORNERS | Arizona |
| 014 | FOUR CORNERS | Colorado |
| 014 | FOUR CORNERS | New Mexico |
| 014 | FOUR CORNERS | Utah |
| 015 | PHOENIX-TUCSON | Arizona |
| 016 | CENTRAL ARKANSAS | Arkansas |
Showing 1 to 25 of 314 entries