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Adjustments to Original Sulfur Dioxide (2010) Nonattainment Area Baseline
Adjustments to Original Sulfur Dioxide (2010) Nonattainment Area Baseline
Data is current as of March 31, 2024Effective October 15, 2019, the initial designation of the SO2 (2010) Williamson County, IL nonattainment area was changed from nonattainment to attainment/unclassifiable (84 FR 48286).
| DESIGNATION TO NONATTAINMENT |
| July 12, 2016, Effective September 12, 2016 ( 81 FR 45039 ) |
| Alton Township, IL - ILLINOIS |
| July 12, 2016, Effective September 12, 2016 ( 81 FR 45039 ) |
| Anne Arundel County and Baltimore County, MD - MARYLAND |
| July 12, 2016, Effective September 12, 2016 ( 81 FR 45039 ) |
| St. Clair, MI - MICHIGAN |
| December 13, 2016, Effective January 12, 2017 ( 81 FR 89870 ) |
| Freestone and Anderson Counties, TX - TEXAS |
| December 13, 2016, Effective January 12, 2017 ( 81 FR 89870 ) |
| Rusk and Panola Counties, TX - TEXAS |
| December 13, 2016, Effective January 12, 2017 ( 81 FR 89870 ) |
| Titus County, TX - TEXAS |
| January 09, 2018, Effective April 09, 2018 ( 83 FR 1098 ) |
| Evangeline Parish (Partial), LA - LOUISIANA |
| January 09, 2018, Effective April 09, 2018 ( 83 FR 1098 ) |
| Guayama-Salinas, PR - PUERTO RICO |
| January 09, 2018, Effective April 09, 2018 ( 83 FR 1098 ) |
| Hillsborough-Polk County, FL - FLORIDA |
| January 09, 2018, Effective April 09, 2018 ( 83 FR 1098 ) |
| Huntington, IN - INDIANA |
| January 09, 2018, Effective April 09, 2018 ( 83 FR 1098 ) |
| Piti-Cabras, GU - GUAM |
| January 09, 2018, Effective April 09, 2018 ( 83 FR 1098 ) |
| San Juan, PR - PUERTO RICO |
| March 26, 2021, Effective April 30, 2021 ( 86 FR 16055 ) |
| Giles County, VA - VIRGINIA |
| March 26, 2021, Effective April 30, 2021 ( 86 FR 16055 ) |
| Henderson-Webster Counties, KY - KENTUCKY |
| March 26, 2021, Effective April 30, 2021 ( 86 FR 16055 ) |
| Howard County, TX - TEXAS |
| March 26, 2021, Effective April 30, 2021 ( 86 FR 16055 ) |
| Hutchinson County, TX - TEXAS |
| March 26, 2021, Effective April 30, 2021 ( 86 FR 16055 ) |
| Navarro County, TX - TEXAS |
| March 26, 2021, Effective April 30, 2021 ( 86 FR 16055 ) |
| New Madrid County, MO - MISSOURI |
| March 26, 2021, Effective April 30, 2021 ( 86 FR 16055 ) |
| St. Lawrence County, NY - NEW YORK |
| March 26, 2021, Effective April 30, 2021 ( 86 FR 16055 ) |
| Whatcom County, WA - WASHINGTON |