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Federal Register Notices Related to PM-2.5 (1997) Designations and Classifications
Federal Register Notices Related to PM-2.5 (1997) Designations and Classifications
Data is current as of March 31, 2024Ordered Chronologically in Descending Order
Click on the 'FR' link to view the Federal Register Notice
Last Notice
| 07/24/2023 | Libby, MT | MONTANA | 88 FR 47380 | Final Approval | Redesignation to Maintenance |
| 12/06/2022 | Libby, MT | MONTANA | 87 FR 74577 | Proposed Approval | Redesignation to Maintenance |
| 01/28/2022 | San Joaquin Valley, CA | CALIFORNIA | 87 FR 4503 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/24/2021 | San Joaquin Valley, CA | CALIFORNIA | 86 FR 53150 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/28/2019 | St. Louis, MO-IL | ILLINOIS | 84 FR 24395 | Final Approval | Redesignation to Maintenance |
| 03/21/2019 | St. Louis, MO-IL | ILLINOIS | 84 FR 10461 | Proposed Approval | Redesignation to Maintenance |
| 08/03/2018 | St. Louis, MO-IL | MISSOURI | 83 FR 38114 | Proposed Approval | Redesignation to Maintenance |
| 08/03/2018 | St. Louis, MO-IL | MISSOURI | 83 FR 38033 | Direct Final | Redesignation to Maintenance |
| 01/05/2018 | St. Louis, MO-IL | MISSOURI | 83 FR 636 | Advanced Notice of Proposed Rulemaking | Redesignation to Maintenance |
| 09/01/2017 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 82 FR 41527 | Final Approval | Redesignation to Maintenance |
| 08/29/2017 | Knoxville, TN | TENNESSEE | 82 FR 40953 | Final Approval | Redesignation to Maintenance |
| 06/22/2017 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 82 FR 28435 | Proposed Approval | Redesignation to Maintenance |
| 05/30/2017 | Knoxville, TN | TENNESSEE | 82 FR 24636 | Proposed Approval | Redesignation to Maintenance |
| 04/07/2017 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 82 FR 16938 | Final Approval | Redesignation to Maintenance |
| 04/07/2017 | Louisville, KY-IN | KENTUCKY | 82 FR 16943 | Final Approval | Redesignation to Maintenance |
| 01/11/2017 | Louisville, KY-IN | KENTUCKY | 82 FR 3234 | Proposed Approval | Redesignation to Maintenance |
| 01/04/2017 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 82 FR 792 | Proposed Approval | Redesignation to Maintenance |
| 11/23/2016 | San Joaquin Valley, CA | CALIFORNIA | 81 FR 84481 | Final Approval | Failure to Attain by Attainment Date |
| 10/06/2016 | San Joaquin Valley, CA | CALIFORNIA | 81 FR 69448 | Proposed Approval | Failure to Attain by Attainment Date |
| 10/06/2016 | San Joaquin Valley, CA | CALIFORNIA | 81 FR 69396 | Final Disapproval | Attainment Date Extension |
| 09/09/2016 | Louisville, KY-IN | INDIANA | 81 FR 62390 | Final Approval | Redesignation to Maintenance |
| 07/25/2016 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 81 FR 48350 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/23/2016 | Louisville, KY-IN | INDIANA | 81 FR 40834 | Proposed Approval | Supplement |
| 02/24/2016 | Atlanta, GA | GEORGIA | 81 FR 9114 | Final Approval | Redesignation to Maintenance |
| 02/09/2016 | San Joaquin Valley, CA | CALIFORNIA | 81 FR 6936 | Proposed Approval | Attainment Date Extension |
| 01/11/2016 | Atlanta, GA | GEORGIA | 81 FR 1144 | Proposed Approval | Redesignation to Maintenance |
| 11/04/2015 | Chattanooga, TN-GA-AL | TENNESSEE | 80 FR 68253 | Final Approval | Redesignation to Maintenance |
| 10/02/2015 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 80 FR 59624 | Final Approval | Redesignation to Maintenance |
| 07/16/2015 | Johnstown, PA | PENNSYLVANIA | 80 FR 42046 | Final Approval | Redesignation to Maintenance |
| 07/16/2015 | Lancaster, PA | PENNSYLVANIA | 80 FR 42050 | Final Approval | Redesignation to Maintenance |
| 07/14/2015 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 99 FR 0149 | Court-Order | Redesignation to Maintenance Vacated |
| 07/14/2015 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 99 FR 0149 | Court-Order | Redesignation to Maintenance Vacated |
| 07/14/2015 | Libby, MT | MONTANA | 80 FR 40911 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/20/2015 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 80 FR 28906 | Proposed Approval | Redesignation to Maintenance |
| 05/01/2015 | Lancaster, PA | PENNSYLVANIA | 80 FR 24874 | Proposed Approval | Redesignation to Maintenance |
| 04/28/2015 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 80 FR 23449 | Final Approval | Correction/Clarification |
| 04/23/2015 | Johnstown, PA | PENNSYLVANIA | 80 FR 22672 | Proposed Approval | Redesignation to Maintenance |
| 04/21/2015 | Philadelphia-Wilmington, PA-NJ-DE | PENNSYLVANIA | 80 FR 22112 | Final Approval | Redesignation to Maintenance |
| 04/14/2015 | Libby, MT | MONTANA | 80 FR 19935 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/07/2015 | San Joaquin Valley, CA | CALIFORNIA | 80 FR 18528 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 03/27/2015 | Chattanooga, TN-GA-AL | TENNESSEE | 80 FR 16331 | Proposed Approval | Redesignation to Maintenance |
| 03/09/2015 | Rome, GA | GEORGIA | 80 FR 12341 | Final Approval | Correction/Clarification |
| 03/04/2015 | Reading, PA | PENNSYLVANIA | 80 FR 11580 | Final Approval | Redesignation to Maintenance |
| 02/17/2015 | Philadelphia-Wilmington, PA-NJ-DE | PENNSYLVANIA | 80 FR 8254 | Proposed Approval | Redesignation to Maintenance |
| 02/13/2015 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 80 FR 7970 | Final Approval | Correction/Clarification |
| 02/11/2015 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 80 FR 7540 | Final Approval | Correction/Clarification |
| 01/12/2015 | San Joaquin Valley, CA | CALIFORNIA | 80 FR 1482 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 01/06/2015 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 80 FR 449 | Proposed Approval | Extension of Comment Period |
| 12/22/2014 | Chattanooga, TN-GA-AL | ALABAMA | 79 FR 76235 | Final Approval | Redesignation to Maintenance |
| 12/22/2014 | Reading, PA | PENNSYLVANIA | 79 FR 76251 | Proposed Approval | Redesignation to Maintenance |
| 12/19/2014 | Chattanooga, TN-GA-AL | GEORGIA | 79 FR 75749 | Final Approval | Redesignation to Maintenance |
| 12/16/2014 | Baltimore, MD | MARYLAND | 79 FR 75031 | Final Approval | Redesignation to Maintenance |
| 12/16/2014 | Martinsburg-Hagerstown, WV-MD | MARYLAND | 79 FR 75035 | Final Approval | Redesignation to Maintenance |
| 12/09/2014 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 79 FR 72999 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 12/08/2014 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 79 FR 72552 | Final Approval | Redesignation to Maintenance |
| 12/08/2014 | York, PA | PENNSYLVANIA | 79 FR 72552 | Final Approval | Redesignation to Maintenance |
| 11/25/2014 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 79 FR 70099 | Final Approval | Redesignation to Maintenance |
| 11/12/2014 | Chattanooga, TN-GA-AL | ALABAMA | 79 FR 67137 | Proposed Approval | Redesignation to Maintenance |
| 11/12/2014 | Chattanooga, TN-GA-AL | GEORGIA | 79 FR 67120 | Proposed Approval | Redesignation to Maintenance |
| 10/17/2014 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 79 FR 62389 | Proposed Approval | Redesignation to Maintenance |
| 10/17/2014 | York, PA | PENNSYLVANIA | 79 FR 62389 | Proposed Approval | Redesignation to Maintenance |
| 10/06/2014 | Washington, DC-MD-VA | DISTRICT OF COL | 79 FR 60081 | Final Approval | Redesignation to Maintenance |
| 10/06/2014 | Washington, DC-MD-VA | MARYLAND | 79 FR 60081 | Final Approval | Redesignation to Maintenance |
| 10/06/2014 | Washington, DC-MD-VA | VIRGINIA | 79 FR 60081 | Final Approval | Redesignation to Maintenance |
| 10/03/2014 | Baltimore, MD | MARYLAND | 79 FR 59703 | Proposed Approval | Redesignation to Maintenance |
| 08/21/2014 | Martinsburg-Hagerstown, WV-MD | MARYLAND | 79 FR 49474 | Proposed Approval | Redesignation to Maintenance |
| 08/06/2014 | Washington, DC-MD-VA | DISTRICT OF COL | 79 FR 45735 | Proposed Approval | Redesignation to Maintenance |
| 08/06/2014 | Washington, DC-MD-VA | MARYLAND | 79 FR 45735 | Proposed Approval | Redesignation to Maintenance |
| 08/06/2014 | Washington, DC-MD-VA | VIRGINIA | 79 FR 45735 | Proposed Approval | Redesignation to Maintenance |
| 08/05/2014 | Philadelphia-Wilmington, PA-NJ-DE | DELAWARE | 79 FR 45350 | Final Approval | Redesignation to Maintenance |
| 06/02/2014 | Atlanta, GA | GEORGIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Baltimore, MD | MARYLAND | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Chattanooga, TN-GA-AL | ALABAMA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Chattanooga, TN-GA-AL | GEORGIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Chattanooga, TN-GA-AL | TENNESSEE | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Johnstown, PA | PENNSYLVANIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Knoxville, TN | TENNESSEE | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Lancaster, PA | PENNSYLVANIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Libby, MT | MONTANA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Liberty-Clairton, PA | PENNSYLVANIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Louisville, KY-IN | INDIANA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Louisville, KY-IN | KENTUCKY | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Martinsburg-Hagerstown, WV-MD | MARYLAND | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Philadelphia-Wilmington, PA-NJ-DE | DELAWARE | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Philadelphia-Wilmington, PA-NJ-DE | PENNSYLVANIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Reading, PA | PENNSYLVANIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | San Joaquin Valley, CA | CALIFORNIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | St. Louis, MO-IL | ILLINOIS | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | St. Louis, MO-IL | MISSOURI | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Washington, DC-MD-VA | DISTRICT OF COL | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Washington, DC-MD-VA | MARYLAND | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | Washington, DC-MD-VA | VIRGINIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 06/02/2014 | York, PA | PENNSYLVANIA | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 |
| 05/14/2014 | Rome, GA | GEORGIA | 79 FR 27493 | Final Approval | Redesignation to Maintenance |
| 05/13/2014 | Macon, GA | GEORGIA | 79 FR 27193 | Final Approval | Redesignation to Maintenance |
| 05/05/2014 | Chattanooga, TN-GA-AL | ALABAMA | 79 FR 25555 | Proposed Approval | Technical Amendment |
| 05/05/2014 | Chattanooga, TN-GA-AL | ALABAMA | 79 FR 25508 | Direct Final | Technical Amendment |
| 05/05/2014 | Chattanooga, TN-GA-AL | GEORGIA | 79 FR 25555 | Proposed Approval | Technical Amendment |
| 05/05/2014 | Chattanooga, TN-GA-AL | GEORGIA | 79 FR 25508 | Direct Final | Technical Amendment |
| 05/05/2014 | Chattanooga, TN-GA-AL | TENNESSEE | 79 FR 25555 | Proposed Approval | Technical Amendment |
| 05/05/2014 | Chattanooga, TN-GA-AL | TENNESSEE | 79 FR 25508 | Direct Final | Technical Amendment |
| 05/05/2014 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 79 FR 25540 | Proposed Approval | Redesignation to Maintenance |
| 04/18/2014 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 79 FR 21857 | Final Approval | Redesignation to Maintenance |
| 04/11/2014 | Philadelphia-Wilmington, PA-NJ-DE | DELAWARE | 79 FR 20139 | Proposed Approval | Redesignation to Maintenance |
| 03/31/2014 | Charleston, WV | WEST VIRGINIA | 79 FR 17884 | Final Approval | Redesignation to Maintenance |
| 03/18/2014 | Steubenville-Weirton, OH-WV | WEST VIRGINIA | 79 FR 15019 | Final Approval | Redesignation to Maintenance |
| 02/11/2014 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 79 FR 8133 | Proposed Approval | Redesignation to Maintenance |
| 02/05/2014 | Macon, GA | GEORGIA | 79 FR 6842 | Proposed Approval | Redesignation to Maintenance |
| 01/24/2014 | Charleston, WV | WEST VIRGINIA | 79 FR 4121 | Proposed Approval | Redesignation to Maintenance |
| 01/23/2014 | Rome, GA | GEORGIA | 79 FR 3757 | Proposed Approval | Redesignation to Maintenance |
| 12/09/2013 | Steubenville-Weirton, OH-WV | WEST VIRGINIA | 78 FR 73769 | Proposed Approval | Redesignation to Maintenance |
| 11/21/2013 | Libby, MT | MONTANA | 78 FR 69806 | Proposed Approval | Change from Subpart 1 to Subpart 4 |
| 11/21/2013 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 78 FR 69806 | Proposed Approval | Change from Subpart 1 to Subpart 4 |
| 11/21/2013 | San Joaquin Valley, CA | CALIFORNIA | 78 FR 69806 | Proposed Approval | Change from Subpart 1 to Subpart 4 |
| 11/07/2013 | Columbus, OH | OHIO | 78 FR 66845 | Final Approval | Redesignation to Maintenance |
| 10/25/2013 | Liberty-Clairton, PA | PENNSYLVANIA | 78 FR 63881 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/22/2013 | Canton-Massillon, OH | OHIO | 78 FR 62459 | Final Approval | Redesignation to Maintenance |
| 10/02/2013 | Chicago-Gary-Lake County, IL-IN | ILLINOIS | 78 FR 60704 | Final Approval | Redesignation to Maintenance |
| 10/02/2013 | Chicago-Gary-Lake County, IL-IN | INDIANA | 78 FR 60704 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/30/2013 | Wheeling, WV-OH | WEST VIRGINIA | 78 FR 59841 | Final Approval | Redesignation to Maintenance |
| 09/26/2013 | Dayton-Springfield, OH | OHIO | 78 FR 59258 | Final Approval | Redesignation to Maintenance |
| 09/24/2013 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 78 FR 58467 | Final Approval | Redesignation to Maintenance |
| 09/18/2013 | Cleveland-Akron-Lorain, OH | OHIO | 78 FR 57270 | Final Approval | Redesignation to Maintenance |
| 09/18/2013 | Steubenville-Weirton, OH-WV | OHIO | 78 FR 57273 | Final Approval | Redesignation to Maintenance |
| 09/12/2013 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 78 FR 56168 | Final Approval | Redesignation to Maintenance |
| 09/04/2013 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 78 FR 54396 | Final Approval | Redesignation to Maintenance |
| 09/04/2013 | Philadelphia-Wilmington, PA-NJ-DE | NEW JERSEY | 78 FR 54396 | Final Approval | Redesignation to Maintenance |
| 08/29/2013 | Detroit-Ann Arbor, MI | MICHIGAN | 78 FR 53272 | Final Approval | Redesignation to Maintenance |
| 08/29/2013 | Parkersburg-Marietta, WV-OH | OHIO | 78 FR 53275 | Final Approval | Redesignation to Maintenance |
| 08/29/2013 | Wheeling, WV-OH | OHIO | 78 FR 53275 | Final Approval | Redesignation to Maintenance |
| 08/26/2013 | Columbus, OH | OHIO | 78 FR 52733 | Proposed Approval | Redesignation to Maintenance |
| 08/07/2013 | Canton-Massillon, OH | OHIO | 78 FR 48087 | Proposed Approval | Redesignation to Maintenance |
| 08/07/2013 | Chicago-Gary-Lake County, IL-IN | ILLINOIS | 78 FR 48103 | Proposed Approval | Redesignation to Maintenance |
| 07/26/2013 | Cleveland-Akron-Lorain, OH | OHIO | 78 FR 45116 | Proposed Approval | Redesignation to Maintenance |
| 07/26/2013 | Dayton-Springfield, OH | OHIO | 78 FR 45135 | Proposed Approval | Redesignation to Maintenance |
| 07/24/2013 | Wheeling, WV-OH | WEST VIRGINIA | 78 FR 44487 | Proposed Approval | Supplement |
| 07/23/2013 | Liberty-Clairton, PA | PENNSYLVANIA | 78 FR 44070 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/19/2013 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 78 FR 43096 | Proposed Approval | Redesignation to Maintenance |
| 07/11/2013 | Indianapolis, IN | INDIANA | 78 FR 41698 | Final Approval | Redesignation to Maintenance |
| 07/11/2013 | Louisville, KY-IN | INDIANA | 78 FR 41735 | Proposed Approval | Redesignation to Maintenance |
| 07/11/2013 | Steubenville-Weirton, OH-WV | OHIO | 78 FR 41752 | Proposed Approval | Redesignation to Maintenance |
| 07/08/2013 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 78 FR 40655 | Proposed Approval | Supplement |
| 07/02/2013 | Detroit-Ann Arbor, MI | MICHIGAN | 78 FR 39654 | Proposed Approval | Redesignation to Maintenance |
| 06/27/2013 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 78 FR 38648 | Proposed Approval | Redesignation to Maintenance |
| 06/27/2013 | Philadelphia-Wilmington, PA-NJ-DE | NEW JERSEY | 78 FR 38648 | Proposed Approval | Redesignation to Maintenance |
| 06/26/2013 | Parkersburg-Marietta, WV-OH | OHIO | 78 FR 38256 | Proposed Approval | Supplement |
| 04/08/2013 | Indianapolis, IN | INDIANA | 78 FR 20856 | Proposed Approval | Redesignation to Maintenance |
| 01/22/2013 | Birmingham, AL | ALABAMA | 78 FR 4341 | Final Approval | Redesignation to Maintenance |
| 12/31/2012 | Huntington-Ashland, WV-KY-OH | OHIO | 77 FR 76883 | Final Approval | Redesignation to Maintenance |
| 12/28/2012 | Huntington-Ashland, WV-KY-OH | WEST VIRGINIA | 77 FR 76415 | Final Approval | Redesignation to Maintenance |
| 12/26/2012 | Huntington-Ashland, WV-KY-OH | KENTUCKY | 77 FR 75865 | Final Approval | Redesignation to Maintenance |
| 12/11/2012 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 77 FR 73560 | Proposed Approval | Redesignation to Maintenance |
| 12/11/2012 | Wheeling, WV-OH | WEST VIRGINIA | 77 FR 73575 | Proposed Approval | Redesignation to Maintenance |
| 11/30/2012 | Parkersburg-Marietta, WV-OH | OHIO | 77 FR 71383 | Proposed Approval | Redesignation to Maintenance |
| 11/30/2012 | Wheeling, WV-OH | OHIO | 77 FR 71371 | Proposed Approval | Redesignation to Maintenance |
| 11/19/2012 | Huntington-Ashland, WV-KY-OH | KENTUCKY | 77 FR 69409 | Proposed Approval | Redesignation to Maintenance |
| 11/15/2012 | Huntington-Ashland, WV-KY-OH | WEST VIRGINIA | 77 FR 68076 | Proposed Approval | Redesignation to Maintenance |
| 11/06/2012 | Detroit-Ann Arbor, MI | MICHIGAN | 77 FR 66545 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/12/2012 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 77 FR 62147 | Final Approval | Clean Data Determination/Attainment Determination |
| 08/02/2012 | Knoxville, TN | TENNESSEE | 77 FR 45954 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/05/2012 | Detroit-Ann Arbor, MI | MICHIGAN | 77 FR 39659 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/27/2012 | St. Louis, MO-IL | ILLINOIS | 77 FR 38183 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/27/2012 | St. Louis, MO-IL | MISSOURI | 77 FR 38183 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/11/2012 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 77 FR 34297 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/06/2012 | Knoxville, TN | TENNESSEE | 77 FR 33360 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/22/2012 | Baltimore, MD | MARYLAND | 77 FR 30208 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/16/2012 | Philadelphia-Wilmington, PA-NJ-DE | DELAWARE | 77 FR 28782 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/16/2012 | Philadelphia-Wilmington, PA-NJ-DE | NEW JERSEY | 77 FR 28782 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/16/2012 | Philadelphia-Wilmington, PA-NJ-DE | PENNSYLVANIA | 77 FR 28782 | Final Approval | Clean Data Determination/Attainment Determination |
| 03/13/2012 | Philadelphia-Wilmington, PA-NJ-DE | DELAWARE | 77 FR 14697 | Withdrawal | Clean Data Determination/Attainment Determination |
| 03/13/2012 | Philadelphia-Wilmington, PA-NJ-DE | NEW JERSEY | 77 FR 14697 | Withdrawal | Clean Data Determination/Attainment Determination |
| 03/13/2012 | Philadelphia-Wilmington, PA-NJ-DE | PENNSYLVANIA | 77 FR 14697 | Withdrawal | Clean Data Determination/Attainment Determination |
| 01/23/2012 | Philadelphia-Wilmington, PA-NJ-DE | DELAWARE | 77 FR 3223 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/23/2012 | Philadelphia-Wilmington, PA-NJ-DE | DELAWARE | 77 FR 3147 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/23/2012 | Philadelphia-Wilmington, PA-NJ-DE | NEW JERSEY | 77 FR 3223 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/23/2012 | Philadelphia-Wilmington, PA-NJ-DE | NEW JERSEY | 77 FR 3147 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/23/2012 | Philadelphia-Wilmington, PA-NJ-DE | PENNSYLVANIA | 77 FR 3223 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/23/2012 | Philadelphia-Wilmington, PA-NJ-DE | PENNSYLVANIA | 77 FR 3147 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/10/2012 | Martinsburg-Hagerstown, WV-MD | MARYLAND | 77 FR 1411 | Final Approval | Clean Data Determination/Attainment Determination |
| 01/10/2012 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 77 FR 1411 | Final Approval | Clean Data Determination/Attainment Determination |
| 01/10/2012 | Washington, DC-MD-VA | DISTRICT OF COL | 77 FR 1411 | Final Approval | Clean Data Determination/Attainment Determination |
| 01/10/2012 | Washington, DC-MD-VA | MARYLAND | 77 FR 1411 | Final Approval | Clean Data Determination/Attainment Determination |
| 01/10/2012 | Washington, DC-MD-VA | VIRGINIA | 77 FR 1411 | Final Approval | Clean Data Determination/Attainment Determination |
| 12/23/2011 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 76 FR 80253 | Final Approval | Redesignation to Maintenance |
| 12/23/2011 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 76 FR 80253 | Final Approval | Redesignation to Maintenance |
| 12/22/2011 | Huntington-Ashland, WV-KY-OH | OHIO | 76 FR 79593 | Proposed Approval | Redesignation to Maintenance |
| 12/20/2011 | St. Louis, MO-IL | ILLINOIS | 76 FR 78869 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 12/20/2011 | St. Louis, MO-IL | MISSOURI | 76 FR 78869 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 12/15/2011 | Cincinnati-Hamilton, OH-KY-IN | KENTUCKY | 76 FR 77903 | Final Approval | Redesignation to Maintenance |
| 12/08/2011 | Atlanta, GA | GEORGIA | 76 FR 76620 | Final Approval | Clean Data Determination/Attainment Determination |
| 12/07/2011 | Chicago-Gary-Lake County, IL-IN | INDIANA | 76 FR 76302 | Final Approval | Redesignation to Maintenance |
| 12/06/2011 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 76 FR 76048 | Withdrawal | Redesignation to Maintenance |
| 12/06/2011 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 76 FR 76048 | Withdrawal | Redesignation to Maintenance |
| 12/02/2011 | Parkersburg-Marietta, WV-OH | OHIO | 76 FR 75464 | Final Approval | Clean Data Determination/Attainment Determination |
| 12/02/2011 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 76 FR 75464 | Final Approval | Clean Data Determination/Attainment Determination |
| 12/02/2011 | Wheeling, WV-OH | OHIO | 76 FR 75464 | Final Approval | Clean Data Determination/Attainment Determination |
| 12/02/2011 | Wheeling, WV-OH | WEST VIRGINIA | 76 FR 75464 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/23/2011 | Baltimore, MD | MARYLAND | 76 FR 72374 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 11/23/2011 | Baltimore, MD | MARYLAND | 76 FR 72374 | Withdrawal | Clean Data Determination/Attainment Determination |
| 11/18/2011 | Greensboro-Winston Salem-High Point, NC | NORTH CAROLINA | 76 FR 71455 | Final Approval | Redesignation to Maintenance |
| 11/18/2011 | Hickory-Morganton-Lenoir, NC | NORTH CAROLINA | 76 FR 71452 | Final Approval | Redesignation to Maintenance |
| 11/14/2011 | Indianapolis, IN | INDIANA | 76 FR 70361 | Withdrawal | Redesignation to Maintenance |
| 11/10/2011 | Birmingham, AL | ALABAMA | 76 FR 70078 | Proposed Approval | Redesignation to Maintenance |
| 11/09/2011 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 76 FR 69928 | Final Approval | Attainment Date Extension |
| 11/09/2011 | San Joaquin Valley, CA | CALIFORNIA | 76 FR 69896 | Final Approval | Attainment Date Extension |
| 11/04/2011 | Martinsburg-Hagerstown, WV-MD | MARYLAND | 76 FR 68378 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 11/04/2011 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 76 FR 68378 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 11/04/2011 | Washington, DC-MD-VA | DISTRICT OF COL | 76 FR 68378 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 11/04/2011 | Washington, DC-MD-VA | MARYLAND | 76 FR 68378 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 11/04/2011 | Washington, DC-MD-VA | VIRGINIA | 76 FR 68378 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 10/21/2011 | Cincinnati-Hamilton, OH-KY-IN | KENTUCKY | 76 FR 65458 | Proposed Approval | Redesignation to Maintenance |
| 10/19/2011 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 76 FR 64880 | Proposed Approval | Redesignation to Maintenance |
| 10/19/2011 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 76 FR 64825 | Direct Final | Redesignation to Maintenance |
| 10/19/2011 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 76 FR 64880 | Proposed Approval | Redesignation to Maintenance |
| 10/19/2011 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 76 FR 64825 | Direct Final | Redesignation to Maintenance |
| 10/11/2011 | Charleston, WV | WEST VIRGINIA | 76 FR 62640 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/29/2011 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 76 FR 60373 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/29/2011 | Cincinnati-Hamilton, OH-KY-IN | KENTUCKY | 76 FR 60373 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/29/2011 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 76 FR 60373 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/27/2011 | Chicago-Gary-Lake County, IL-IN | INDIANA | 76 FR 59600 | Proposed Approval | Redesignation to Maintenance |
| 09/27/2011 | Evansville, IN | INDIANA | 76 FR 59527 | Final Approval | Redesignation to Maintenance |
| 09/27/2011 | Indianapolis, IN | INDIANA | 76 FR 59599 | Proposed Approval | Redesignation to Maintenance |
| 09/27/2011 | Indianapolis, IN | INDIANA | 76 FR 59512 | Direct Final | Redesignation to Maintenance |
| 09/26/2011 | Greensboro-Winston Salem-High Point, NC | NORTH CAROLINA | 76 FR 59345 | Proposed Approval | Redesignation to Maintenance |
| 09/20/2011 | Hickory-Morganton-Lenoir, NC | NORTH CAROLINA | 76 FR 58210 | Proposed Approval | Redesignation to Maintenance |
| 09/14/2011 | Atlanta, GA | GEORGIA | 76 FR 56701 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 09/14/2011 | Cleveland-Akron-Lorain, OH | OHIO | 76 FR 56641 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/14/2011 | Columbus, OH | OHIO | 76 FR 56641 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/14/2011 | Dayton-Springfield, OH | OHIO | 76 FR 56641 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/14/2011 | Steubenville-Weirton, OH-WV | OHIO | 76 FR 56641 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/14/2011 | Steubenville-Weirton, OH-WV | WEST VIRGINIA | 76 FR 56641 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/08/2011 | Chattanooga, TN-GA-AL | ALABAMA | 76 FR 55774 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/08/2011 | Chattanooga, TN-GA-AL | GEORGIA | 76 FR 55774 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/08/2011 | Chattanooga, TN-GA-AL | TENNESSEE | 76 FR 55774 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/08/2011 | Macon, GA | GEORGIA | 76 FR 55774 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/08/2011 | Rome, GA | GEORGIA | 76 FR 55776 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/07/2011 | Huntington-Ashland, WV-KY-OH | KENTUCKY | 76 FR 55542 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/07/2011 | Huntington-Ashland, WV-KY-OH | OHIO | 76 FR 55542 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/07/2011 | Huntington-Ashland, WV-KY-OH | WEST VIRGINIA | 76 FR 55542 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/07/2011 | Louisville, KY-IN | INDIANA | 76 FR 55544 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/07/2011 | Louisville, KY-IN | KENTUCKY | 76 FR 55544 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/29/2011 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 76 FR 45482 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/29/2011 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 76 FR 45424 | Direct Final | Clean Data Determination/Attainment Determination |
| 07/29/2011 | Johnstown, PA | PENNSYLVANIA | 76 FR 45482 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/29/2011 | Johnstown, PA | PENNSYLVANIA | 76 FR 45424 | Direct Final | Clean Data Determination/Attainment Determination |
| 07/29/2011 | Lancaster, PA | PENNSYLVANIA | 76 FR 45482 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/29/2011 | Lancaster, PA | PENNSYLVANIA | 76 FR 45424 | Direct Final | Clean Data Determination/Attainment Determination |
| 07/29/2011 | Reading, PA | PENNSYLVANIA | 76 FR 45482 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/29/2011 | Reading, PA | PENNSYLVANIA | 76 FR 45424 | Direct Final | Clean Data Determination/Attainment Determination |
| 07/29/2011 | York, PA | PENNSYLVANIA | 76 FR 45482 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/29/2011 | York, PA | PENNSYLVANIA | 76 FR 45424 | Direct Final | Clean Data Determination/Attainment Determination |
| 07/21/2011 | Parkersburg-Marietta, WV-OH | OHIO | 76 FR 43634 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/21/2011 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 76 FR 43634 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/21/2011 | Wheeling, WV-OH | OHIO | 76 FR 43634 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/21/2011 | Wheeling, WV-OH | WEST VIRGINIA | 76 FR 43634 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/15/2011 | Charleston, WV | WEST VIRGINIA | 76 FR 41739 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/14/2011 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 76 FR 41562 | Proposed Approval | Attainment Date Extension |
| 07/13/2011 | San Joaquin Valley, CA | CALIFORNIA | 76 FR 41338 | Proposed Approval | Attainment Date Extension |
| 06/29/2011 | Birmingham, AL | ALABAMA | 76 FR 38023 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/15/2011 | Louisville, KY-IN | INDIANA | 76 FR 34935 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/15/2011 | Louisville, KY-IN | KENTUCKY | 76 FR 34935 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/03/2011 | Cincinnati-Hamilton, OH-KY-IN | INDIANA | 76 FR 32110 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/03/2011 | Cincinnati-Hamilton, OH-KY-IN | KENTUCKY | 76 FR 32110 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/03/2011 | Cincinnati-Hamilton, OH-KY-IN | OHIO | 76 FR 32110 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/02/2011 | Chattanooga, TN-GA-AL | ALABAMA | 76 FR 31900 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/02/2011 | Chattanooga, TN-GA-AL | GEORGIA | 76 FR 31900 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/02/2011 | Chattanooga, TN-GA-AL | TENNESSEE | 76 FR 31900 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/02/2011 | Macon, GA | GEORGIA | 76 FR 31900 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/02/2011 | Macon, GA | GEORGIA | 76 FR 31858 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/02/2011 | Rome, GA | GEORGIA | 76 FR 31898 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/31/2011 | Chattanooga, TN-GA-AL | ALABAMA | 76 FR 31239 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/31/2011 | Chattanooga, TN-GA-AL | GEORGIA | 76 FR 31239 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/31/2011 | Chattanooga, TN-GA-AL | TENNESSEE | 76 FR 31239 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/23/2011 | Evansville, IN | INDIANA | 76 FR 29695 | Proposed Approval | Redesignation to Maintenance |
| 05/23/2011 | St. Louis, MO-IL | ILLINOIS | 76 FR 29652 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/23/2011 | St. Louis, MO-IL | MISSOURI | 76 FR 29652 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/17/2011 | Cleveland-Akron-Lorain, OH | OHIO | 76 FR 28393 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/17/2011 | Columbus, OH | OHIO | 76 FR 28393 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/17/2011 | Dayton-Springfield, OH | OHIO | 76 FR 28393 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/17/2011 | Steubenville-Weirton, OH-WV | OHIO | 76 FR 28393 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/17/2011 | Steubenville-Weirton, OH-WV | WEST VIRGINIA | 76 FR 28393 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/11/2011 | Huntington-Ashland, WV-KY-OH | KENTUCKY | 76 FR 27290 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/11/2011 | Huntington-Ashland, WV-KY-OH | OHIO | 76 FR 27290 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/11/2011 | Huntington-Ashland, WV-KY-OH | WEST VIRGINIA | 76 FR 27290 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/12/2011 | Birmingham, AL | ALABAMA | 76 FR 20291 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/05/2011 | Rome, GA | GEORGIA | 76 FR 18650 | Final Approval | Clean Data Determination/Attainment Determination |
| 03/22/2011 | Chattanooga, TN-GA-AL | ALABAMA | 76 FR 15895 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 03/22/2011 | Chattanooga, TN-GA-AL | GEORGIA | 76 FR 15895 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 03/22/2011 | Chattanooga, TN-GA-AL | TENNESSEE | 76 FR 15895 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 03/22/2011 | Macon, GA | GEORGIA | 76 FR 15892 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 03/09/2011 | Louisville, KY-IN | INDIANA | 76 FR 12860 | Final Approval | Clean Data Determination/Attainment Determination |
| 03/09/2011 | Louisville, KY-IN | KENTUCKY | 76 FR 12860 | Final Approval | Clean Data Determination/Attainment Determination |
| 03/07/2011 | St. Louis, MO-IL | ILLINOIS | 76 FR 12302 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 03/07/2011 | St. Louis, MO-IL | MISSOURI | 76 FR 12302 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 12/13/2010 | Rome, GA | GEORGIA | 75 FR 77595 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 12/06/2010 | Greensboro-Winston Salem-High Point, NC | NORTH CAROLINA | 75 FR 75625 | Final Approval | Correction/Clarification |
| 12/06/2010 | Hickory-Morganton-Lenoir, NC | NORTH CAROLINA | 75 FR 75626 | Final Approval | Correction/Clarification |
| 11/15/2010 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 75 FR 69589 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/15/2010 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 75 FR 69589 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/15/2010 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 75 FR 69589 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/14/2010 | Louisville, KY-IN | INDIANA | 75 FR 55725 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 09/14/2010 | Louisville, KY-IN | KENTUCKY | 75 FR 55725 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 08/01/2010 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 75 FR 45076 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 08/01/2010 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 75 FR 45076 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 08/01/2010 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 75 FR 45076 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/05/2010 | Hickory-Morganton-Lenoir, NC | NORTH CAROLINA | 75 FR 230 | Final Approval | Clean Data Determination/Attainment Determination |
| 01/04/2010 | Greensboro-Winston Salem-High Point, NC | NORTH CAROLINA | 75 FR 54 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/27/2009 | Chicago-Gary-Lake County, IL-IN | ILLINOIS | 74 FR 62243 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/27/2009 | Chicago-Gary-Lake County, IL-IN | INDIANA | 74 FR 62243 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/27/2009 | Evansville, IN | INDIANA | 74 FR 62243 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/20/2009 | Martinsburg-Hagerstown, WV-MD | MARYLAND | 74 FR 60199 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/20/2009 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 74 FR 60199 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/20/2009 | Parkersburg-Marietta, WV-OH | OHIO | 74 FR 60199 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/20/2009 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 74 FR 60199 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/20/2009 | Wheeling, WV-OH | OHIO | 74 FR 60199 | Final Approval | Clean Data Determination/Attainment Determination |
| 11/20/2009 | Wheeling, WV-OH | WEST VIRGINIA | 74 FR 60199 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/06/2009 | Greensboro-Winston Salem-High Point, NC | NORTH CAROLINA | 74 FR 51249 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 10/06/2009 | Hickory-Morganton-Lenoir, NC | NORTH CAROLINA | 74 FR 51246 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 09/29/2009 | Baltimore, MD | MARYLAND | 74 FR 49834 | Proposed Approval | Extension of Comment Period |
| 09/29/2009 | Martinsburg-Hagerstown, WV-MD | MARYLAND | 74 FR 49834 | Proposed Approval | Extension of Comment Period |
| 09/29/2009 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 74 FR 49833 | Proposed Approval | Extension of Comment Period |
| 09/29/2009 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 74 FR 49833 | Proposed Approval | Extension of Comment Period |
| 09/29/2009 | Wheeling, WV-OH | WEST VIRGINIA | 74 FR 49833 | Proposed Approval | Extension of Comment Period |
| 09/25/2009 | Johnstown, PA | PENNSYLVANIA | 74 FR 48863 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/25/2009 | Lancaster, PA | PENNSYLVANIA | 74 FR 48863 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/25/2009 | Reading, PA | PENNSYLVANIA | 74 FR 48863 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/25/2009 | York, PA | PENNSYLVANIA | 74 FR 48863 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/24/2009 | Chicago-Gary-Lake County, IL-IN | ILLINOIS | 74 FR 48690 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 09/24/2009 | Chicago-Gary-Lake County, IL-IN | INDIANA | 74 FR 48690 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 09/24/2009 | Evansville, IN | INDIANA | 74 FR 48690 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 08/27/2009 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 74 FR 43653 | Proposed Approval | Correction/Clarification |
| 08/27/2009 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 74 FR 43653 | Proposed Approval | Correction/Clarification |
| 08/27/2009 | Wheeling, WV-OH | WEST VIRGINIA | 74 FR 43653 | Proposed Approval | Correction/Clarification |
| 07/31/2009 | Baltimore, MD | MARYLAND | 74 FR 38161 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/31/2009 | Johnstown, PA | PENNSYLVANIA | 74 FR 38158 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/31/2009 | Lancaster, PA | PENNSYLVANIA | 74 FR 38158 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/31/2009 | Martinsburg-Hagerstown, WV-MD | MARYLAND | 74 FR 38161 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/31/2009 | Martinsburg-Hagerstown, WV-MD | WEST VIRGINIA | 74 FR 38154 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/31/2009 | Parkersburg-Marietta, WV-OH | WEST VIRGINIA | 74 FR 38154 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/31/2009 | Reading, PA | PENNSYLVANIA | 74 FR 38158 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/31/2009 | Wheeling, WV-OH | WEST VIRGINIA | 74 FR 38154 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/31/2009 | York, PA | PENNSYLVANIA | 74 FR 38158 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/12/2009 | Washington, DC-MD-VA | DISTRICT OF COL | 74 FR 1146 | Final Approval | Clean Data Determination/Attainment Determination |
| 01/12/2009 | Washington, DC-MD-VA | MARYLAND | 74 FR 1146 | Final Approval | Clean Data Determination/Attainment Determination |
| 01/12/2009 | Washington, DC-MD-VA | VIRGINIA | 74 FR 1146 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/22/2008 | Washington, DC-MD-VA | DISTRICT OF COL | 73 FR 62945 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 10/22/2008 | Washington, DC-MD-VA | MARYLAND | 73 FR 62945 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 10/22/2008 | Washington, DC-MD-VA | VIRGINIA | 73 FR 62945 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 08/25/2008 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 73 FR 49949 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/13/2008 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 73 FR 33754 | Proposed Approval | Clean Data Determination/Attainment Determination |
First Notice