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Federal Register Notices Related to 1-Hour Ozone (1979) Designations and Classifications - NAAQS Revoked
Federal Register Notices Related to 1-Hour Ozone (1979) Designations and Classifications - NAAQS Revoked
Data is current as of September 30, 2024Ordered Chronologically in Descending Order
Click on the 'FR' link to view the Federal Register Notice
Last Notice
| 04/06/2020 | Dallas-Fort Worth, TX | TEXAS | 85 FR 19096 | Final Approval | Actions on Revoked NAAQS |
| 02/14/2020 | Houston-Galveston-Brazoria, TX | TEXAS | 85 FR 8411 | Final Approval | Actions on Revoked NAAQS |
| 06/24/2019 | Dallas-Fort Worth, TX | TEXAS | 84 FR 29471 | Proposed Approval | Actions on Revoked NAAQS |
| 11/08/2016 | Dallas-Fort Worth, TX | TEXAS | 81 FR 78688 | Final Approval | Actions on Revoked NAAQS |
| 07/18/2016 | San Joaquin Valley, CA | CALIFORNIA | 81 FR 46608 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/25/2016 | Dallas-Fort Worth, TX | TEXAS | 81 FR 33161 | Proposed Approval | Actions on Revoked NAAQS |
| 05/18/2016 | San Joaquin Valley, CA | CALIFORNIA | 81 FR 31206 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 10/20/2015 | Houston-Galveston-Brazoria, TX | TEXAS | 80 FR 63429 | Final Approval | Actions on Revoked NAAQS |
| 08/18/2015 | Houston-Galveston-Brazoria, TX | TEXAS | 80 FR 49970 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 08/18/2015 | Houston-Galveston-Brazoria, TX | TEXAS | 80 FR 49970 | Proposed Approval | Actions on Revoked NAAQS |
| 04/15/2015 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 80 FR 20166 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/03/2014 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 79 FR 52526 | Final Approval | Attainment Date Extension |
| 08/25/2014 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 79 FR 50574 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/23/2014 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 79 FR 29712 | Proposed Approval | Attainment Date Extension |
| 09/23/2013 | Morongo Band of Mission Indians, CA | CALIFORNIA | 78 FR 58189 | Final Approval | Area Split |
| 09/23/2013 | Morongo Band of Mission Indians, CA | CALIFORNIA | 78 FR 58189 | Final Approval | Correction/Clarification |
| 09/23/2013 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 78 FR 58189 | Final Approval | Area Split |
| 09/23/2013 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 78 FR 58189 | Final Approval | Correction/Clarification |
| 01/02/2013 | Morongo Band of Mission Indians, CA | CALIFORNIA | 78 FR 51 | Proposed Approval | Area Split |
| 01/02/2013 | Morongo Band of Mission Indians, CA | CALIFORNIA | 78 FR 51 | Proposed Approval | Correction/Clarification |
| 01/02/2013 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 78 FR 51 | Proposed Approval | Area Split |
| 01/02/2013 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 78 FR 51 | Proposed Approval | Correction/Clarification |
| 10/30/2012 | Manchester, NH | NEW HAMPSHIRE | 77 FR 65625 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/30/2012 | Portsmouth-Dover-Rochester, NH | NEW HAMPSHIRE | 77 FR 65625 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/18/2012 | Sacramento Metro, CA | CALIFORNIA | 77 FR 64036 | Final Approval | Clean Data Determination/Attainment Determination |
| 08/09/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 77 FR 47533 | Final Approval | Correction/Clarification |
| 08/09/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 77 FR 47533 | Final Approval | Correction/Clarification |
| 08/09/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 77 FR 47533 | Final Approval | Correction/Clarification |
| 07/19/2012 | Manchester, NH | NEW HAMPSHIRE | 77 FR 42470 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/19/2012 | Portsmouth-Dover-Rochester, NH | NEW HAMPSHIRE | 77 FR 42470 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/19/2012 | Houston-Galveston-Brazoria, TX | TEXAS | 77 FR 36400 | Final Approval | Failure to Attain by Attainment Date |
| 06/18/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 77 FR 36163 | Final Approval | Failure to Attain by Attainment Date |
| 06/18/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 77 FR 36163 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/18/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 77 FR 36163 | Final Approval | Failure to Attain by Attainment Date |
| 06/18/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 77 FR 36163 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/18/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 77 FR 36163 | Final Approval | Failure to Attain by Attainment Date |
| 06/18/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 77 FR 36163 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/12/2012 | Baltimore, MD | MARYLAND | 77 FR 34810 | Final Approval | Failure to Attain by Attainment Date |
| 06/12/2012 | Baltimore, MD | MARYLAND | 77 FR 34810 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/29/2012 | Boston-Lawrence-Worcester (E. Mass), MA-NH | MASSACHUSETTS | 77 FR 31496 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/29/2012 | Boston-Lawrence-Worcester (E. Mass), MA-NH | NEW HAMPSHIRE | 77 FR 31496 | Final Approval | Clean Data Determination/Attainment Determination |
| 04/30/2012 | Springfield (Western MA), MA | MASSACHUSETTS | 77 FR 25362 | Final Approval | Failure to Attain by Attainment Date |
| 04/30/2012 | Springfield (Western MA), MA | MASSACHUSETTS | 77 FR 25362 | Final Approval | Clean Data Determination/Attainment Determination |
| 04/18/2012 | Greater Connecticut, CT | CONNECTICUT | 77 FR 23130 | Final Approval | Correction/Clarification |
| 03/16/2012 | Greater Connecticut, CT | CONNECTICUT | 77 FR 15607 | Direct Final | Failure to Attain by Attainment Date |
| 03/16/2012 | Greater Connecticut, CT | CONNECTICUT | 77 FR 15607 | Direct Final | Clean Data Determination/Attainment Determination |
| 02/01/2012 | Baltimore, MD | MARYLAND | 77 FR 4940 | Proposed Approval | Failure to Attain by Attainment Date |
| 02/01/2012 | Baltimore, MD | MARYLAND | 77 FR 4940 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 02/01/2012 | Houston-Galveston-Brazoria, TX | TEXAS | 77 FR 4937 | Proposed Approval | Failure to Attain by Attainment Date |
| 01/25/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 77 FR 3720 | Proposed Approval | Failure to Attain by Attainment Date |
| 01/25/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | CONNECTICUT | 77 FR 3720 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/25/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 77 FR 3720 | Proposed Approval | Failure to Attain by Attainment Date |
| 01/25/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW JERSEY | 77 FR 3720 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/25/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 77 FR 3720 | Proposed Approval | Failure to Attain by Attainment Date |
| 01/25/2012 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 77 FR 3720 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/24/2012 | Springfield (Western MA), MA | MASSACHUSETTS | 77 FR 3417 | Proposed Approval | Failure to Attain by Attainment Date |
| 01/24/2012 | Springfield (Western MA), MA | MASSACHUSETTS | 77 FR 3417 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/18/2012 | Boston-Lawrence-Worcester (E. Mass), MA-NH | MASSACHUSETTS | 77 FR 2495 | Proposed Approval | Correction/Clarification |
| 01/18/2012 | Boston-Lawrence-Worcester (E. Mass), MA-NH | NEW HAMPSHIRE | 77 FR 2495 | Proposed Approval | Correction/Clarification |
| 12/30/2011 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 76 FR 82133 | Final Approval | Failure to Attain by Attainment Date |
| 12/30/2011 | San Joaquin Valley, CA | CALIFORNIA | 76 FR 82133 | Final Approval | Failure to Attain by Attainment Date |
| 12/30/2011 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 76 FR 82133 | Final Approval | Failure to Attain by Attainment Date |
| 12/14/2011 | Boston-Lawrence-Worcester (E. Mass), MA-NH | MASSACHUSETTS | 76 FR 77739 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 12/14/2011 | Boston-Lawrence-Worcester (E. Mass), MA-NH | NEW HAMPSHIRE | 76 FR 77739 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 11/23/2011 | Greater Connecticut, CT | CONNECTICUT | 76 FR 72377 | Proposed Approval | Failure to Attain by Attainment Date |
| 11/23/2011 | Greater Connecticut, CT | CONNECTICUT | 76 FR 72377 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 09/14/2011 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 76 FR 56694 | Proposed Approval | Failure to Attain by Attainment Date |
| 09/14/2011 | San Joaquin Valley, CA | CALIFORNIA | 76 FR 56694 | Proposed Approval | Failure to Attain by Attainment Date |
| 09/14/2011 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 76 FR 56694 | Proposed Approval | Failure to Attain by Attainment Date |
| 05/18/2011 | Sacramento Metro, CA | CALIFORNIA | 76 FR 28696 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 10/20/2010 | Beaumont-Port Arthur, TX | TEXAS | 75 FR 64675 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/17/2010 | Beaumont-Port Arthur, TX | TEXAS | 75 FR 27514 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 02/10/2010 | Baton Rouge, LA | LOUISIANA | 75 FR 6570 | Final Approval | Clean Data Determination/Attainment Determination |
| 12/07/2009 | Atlantic City, NJ | NEW JERSEY | 74 FR 63993 | Final Approval | Clean Data Determination/Attainment Determination |
| 12/07/2009 | Poughkeepsie, NY | NEW YORK | 74 FR 63993 | Final Approval | Clean Data Determination/Attainment Determination |
| 09/23/2009 | Atlantic City, NJ | NEW JERSEY | 74 FR 48498 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 09/23/2009 | Poughkeepsie, NY | NEW YORK | 74 FR 48498 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/27/2009 | Ventura County, CA | CALIFORNIA | 74 FR 25200 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/27/2009 | Ventura County, CA | CALIFORNIA | 74 FR 25153 | Direct Final | Clean Data Determination/Attainment Determination |
| 04/24/2009 | Milwaukee-Racine, WI | WISCONSIN | 74 FR 18668 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/24/2009 | Milwaukee-Racine, WI | WISCONSIN | 74 FR 18641 | Direct Final | Clean Data Determination/Attainment Determination |
| 04/08/2009 | Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD | NEW JERSEY | 74 FR 15864 | Final Approval | Clean Data Determination/Attainment Determination |
| 03/26/2009 | Baton Rouge, LA | LOUISIANA | 74 FR 13166 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 12/30/2008 | Chicago-Gary-Lake County, IL-IN | ILLINOIS | 73 FR 79652 | Final Approval | Clean Data Determination/Attainment Determination |
| 12/30/2008 | Chicago-Gary-Lake County, IL-IN | INDIANA | 73 FR 79652 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/16/2008 | Dallas-Fort Worth, TX | TEXAS | 73 FR 61357 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/25/2008 | Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD | DELAWARE | 73 FR 43360 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/25/2008 | Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD | MARYLAND | 73 FR 43360 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/25/2008 | Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD | PENNSYLVANIA | 73 FR 43360 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/25/2008 | Washington, DC-MD-VA | DISTRICT OF COL | 73 FR 43360 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/25/2008 | Washington, DC-MD-VA | MARYLAND | 73 FR 43360 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/25/2008 | Washington, DC-MD-VA | VIRGINIA | 73 FR 43360 | Final Approval | Clean Data Determination/Attainment Determination |
| 07/23/2008 | Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD | NEW JERSEY | 73 FR 42727 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/11/2008 | Dallas-Fort Worth, TX | TEXAS | 73 FR 39897 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/07/2008 | Chicago-Gary-Lake County, IL-IN | ILLINOIS | 73 FR 38353 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/07/2008 | Chicago-Gary-Lake County, IL-IN | INDIANA | 73 FR 38353 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/28/2008 | Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD | DELAWARE | 73 FR 22896 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/28/2008 | Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD | MARYLAND | 73 FR 22896 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/28/2008 | Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD | PENNSYLVANIA | 73 FR 22896 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/28/2008 | Washington, DC-MD-VA | DISTRICT OF COL | 73 FR 22896 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/28/2008 | Washington, DC-MD-VA | MARYLAND | 73 FR 22896 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 04/28/2008 | Washington, DC-MD-VA | VIRGINIA | 73 FR 22896 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 11/10/2005 | Phoenix, AZ | ARIZONA | 70 FR 68390 | Proposed Approval | Boundary Change |
| 11/10/2005 | Phoenix, AZ | ARIZONA | 70 FR 68339 | Direct Final | Boundary Change |
| 06/21/2005 | Cincinnati-Hamilton, OH-KY | OHIO | 70 FR 35946 | Final Approval | Redesignation to Maintenance |
| 06/15/2005 | Atlanta, GA | GEORGIA | 70 FR 34660 | Final Approval | Redesignation to Maintenance |
| 06/14/2005 | Atlanta, GA | GEORGIA | 70 FR 34358 | Final Approval | Clean Data Determination/Attainment Determination |
| 06/14/2005 | Phoenix, AZ | ARIZONA | 70 FR 34362 | Final Approval | Redesignation to Maintenance |
| 05/02/2005 | Reno, NV | NEVADA | 70 FR 22803 | Final Approval | Clean Data Determination/Attainment Determination |
| 04/20/2005 | Atlanta, GA | GEORGIA | 70 FR 20495 | Proposed Approval | Redesignation to Maintenance |
| 04/15/2005 | Cincinnati-Hamilton, OH-KY | OHIO | 70 FR 19895 | Proposed Approval | Redesignation to Maintenance |
| 03/21/2005 | Phoenix, AZ | ARIZONA | 70 FR 13425 | Proposed Approval | Boundary Change |
| 03/21/2005 | Phoenix, AZ | ARIZONA | 70 FR 13425 | Proposed Approval | Redesignation to Maintenance |
| 10/21/2004 | Kent County and Queen Anne's County, MD | MARYLAND | 69 FR 61766 | Final Approval | Redesignation to Maintenance |
| 08/02/2004 | Kent County and Queen Anne's County, MD | MARYLAND | 69 FR 46124 | Proposed Approval | Redesignation to Maintenance |
| 04/22/2004 | East Kern County, CA | CALIFORNIA | 69 FR 21800 | Proposed Approval | Redesignation to Maintenance |
| 04/22/2004 | East Kern County, CA | CALIFORNIA | 69 FR 21731 | Direct Final | Redesignation to Maintenance |
| 04/22/2004 | San Francisco-Bay Area, CA | CALIFORNIA | 69 FR 21717 | Final Approval | Clean Data Determination/Attainment Determination |
| 04/16/2004 | San Joaquin Valley, CA | CALIFORNIA | 69 FR 20550 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 03/30/2004 | Beaumont-Port Arthur, TX | TEXAS | 69 FR 16483 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 03/30/2004 | Beaumont-Port Arthur, TX | TEXAS | 69 FR 16483 | Withdrawal | Attainment Date Extension |
| 03/12/2004 | Birmingham, AL | ALABAMA | 69 FR 11798 | Final Approval | Redesignation to Maintenance |
| 02/23/2004 | San Joaquin Valley, CA | CALIFORNIA | 69 FR 8126 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 01/06/2004 | Birmingham, AL | ALABAMA | 69 FR 558 | Proposed Approval | Redesignation to Maintenance |
| 10/31/2003 | San Francisco-Bay Area, CA | CALIFORNIA | 68 FR 62041 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 10/20/2003 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 68 FR 59997 | Final Approval | Correction/Clarification |
| 10/07/2003 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 68 FR 57820 | Final Approval | Boundary Change |
| 10/07/2003 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 68 FR 57820 | Final Approval | Boundary Change |
| 09/26/2003 | Atlanta, GA | GEORGIA | 68 FR 55469 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 08/15/2003 | Los Angeles-South Coast Air Basin, CA | CALIFORNIA | 68 FR 48848 | Proposed Approval | Boundary Change |
| 08/15/2003 | Southeast Desert Modified AQMA, CA | CALIFORNIA | 68 FR 48848 | Proposed Approval | Boundary Change |
| 08/12/2003 | San Diego, CA | CALIFORNIA | 68 FR 47964 | Final Approval | Correction/Clarification |
| 07/09/2003 | Santa Barbara-Santa Maria-Lompoc, CA | CALIFORNIA | 68 FR 40789 | Final Approval | Redesignation to Maintenance |
| 06/26/2003 | San Diego, CA | CALIFORNIA | 68 FR 37976 | Final Approval | Redesignation to Maintenance |
| 06/19/2003 | Beaumont-Port Arthur, TX | TEXAS | 68 FR 36756 | Withdrawal | Attainment Date Extension |
| 05/12/2003 | St. Louis, MO-IL | ILLINOIS | 68 FR 25442 | Final Approval | Redesignation to Maintenance |
| 05/12/2003 | St. Louis, MO-IL | MISSOURI | 68 FR 25418 | Final Approval | Redesignation to Maintenance |
| 04/24/2003 | Baton Rouge, LA | LOUISIANA | 68 FR 20077 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 04/24/2003 | Baton Rouge, LA | LOUISIANA | 68 FR 20077 | Withdrawal | Attainment Date Extension |
| 04/17/2003 | Door County, WI | WISCONSIN | 68 FR 18934 | Proposed Approval | Redesignation to Maintenance |
| 04/17/2003 | Door County, WI | WISCONSIN | 68 FR 18883 | Direct Final | Redesignation to Maintenance |
| 04/17/2003 | Manitowoc County, WI | WISCONSIN | 68 FR 18934 | Proposed Approval | Redesignation to Maintenance |
| 04/17/2003 | Manitowoc County, WI | WISCONSIN | 68 FR 18883 | Direct Final | Redesignation to Maintenance |
| 04/07/2003 | Providence (all of RI), RI | RHODE ISLAND | 68 FR 16721 | Final Approval | Attainment Date Extension |
| 03/25/2003 | Santa Barbara-Santa Maria-Lompoc, CA | CALIFORNIA | 68 FR 14382 | Proposed Approval | Redesignation to Maintenance |
| 03/20/2003 | San Diego, CA | CALIFORNIA | 68 FR 13653 | Proposed Approval | Redesignation to Maintenance |
| 02/14/2003 | Providence (all of RI), RI | RHODE ISLAND | 68 FR 7476 | Proposed Approval | Attainment Date Extension |
| 02/13/2003 | St. Louis, MO-IL | MISSOURI | 68 FR 7410 | Final Approval | Correction/Clarification |
| 01/30/2003 | St. Louis, MO-IL | ILLINOIS | 68 FR 4847 | Proposed Approval | Redesignation to Maintenance |
| 01/30/2003 | St. Louis, MO-IL | ILLINOIS | 68 FR 4835 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 01/30/2003 | St. Louis, MO-IL | MISSOURI | 68 FR 4847 | Proposed Approval | Redesignation to Maintenance |
| 01/30/2003 | St. Louis, MO-IL | MISSOURI | 68 FR 4835 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 01/24/2003 | Washington, DC-MD-VA | DISTRICT OF COL | 68 FR 3410 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 01/24/2003 | Washington, DC-MD-VA | MARYLAND | 68 FR 3410 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 01/24/2003 | Washington, DC-MD-VA | VIRGINIA | 68 FR 3410 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 12/31/2002 | Beaumont-Port Arthur, TX | TEXAS | 99 FR 60537 | Court-Order | Attainment Date Extension Vacated |
| 12/06/2002 | Boston-Lawrence-Worcester (E. Mass), MA-NH | MASSACHUSETTS | 67 FR 72576 | Final Approval | Attainment Date Extension |
| 12/06/2002 | Boston-Lawrence-Worcester (E. Mass), MA-NH | NEW HAMPSHIRE | 67 FR 72574 | Final Approval | Attainment Date Extension |
| 11/25/2002 | St. Louis, MO-IL | ILLINOIS | 99 FR 2844 | Court-Order | Attainment Date Extension Vacated |
| 11/25/2002 | St. Louis, MO-IL | MISSOURI | 99 FR 2844 | Court-Order | Attainment Date Extension Vacated |
| 11/13/2002 | Washington, DC-MD-VA | DISTRICT OF COL | 67 FR 68805 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 11/13/2002 | Washington, DC-MD-VA | MARYLAND | 67 FR 68805 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 11/13/2002 | Washington, DC-MD-VA | VIRGINIA | 67 FR 68805 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 11/04/2002 | Birmingham, AL | ALABAMA | 67 FR 67113 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/23/2002 | San Diego, CA | CALIFORNIA | 67 FR 65043 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/23/2002 | San Diego, CA | CALIFORNIA | 67 FR 65045 | Withdrawal | Clean Data Determination/Attainment Determination |
| 10/21/2002 | Boston-Lawrence-Worcester (E. Mass), MA-NH | NEW HAMPSHIRE | 67 FR 64582 | Proposed Approval | Attainment Date Extension |
| 10/15/2002 | Boston-Lawrence-Worcester (E. Mass), MA-NH | MASSACHUSETTS | 67 FR 63586 | Proposed Approval | Attainment Date Extension |
| 10/02/2002 | Baton Rouge, LA | LOUISIANA | 67 FR 61786 | Final Approval | Attainment Date Extension |
| 09/17/2002 | Portland, ME | MAINE | 67 FR 58551 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 09/17/2002 | Portland, ME | MAINE | 67 FR 58551 | Proposed Approval | Redesignation to Maintenance |
| 08/27/2002 | Santa Barbara-Santa Maria-Lompoc, CA | CALIFORNIA | 67 FR 54963 | Final Approval | Clean Data Determination/Attainment Determination |
| 08/23/2002 | San Diego, CA | CALIFORNIA | 67 FR 54580 | Direct Final | Clean Data Determination/Attainment Determination |
| 08/21/2002 | Birmingham, AL | ALABAMA | 67 FR 54159 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 08/20/2002 | Baton Rouge, LA | LOUISIANA | 67 FR 53882 | Final Approval | Deferral of Designation |
| 08/02/2002 | Baton Rouge, LA | LOUISIANA | 67 FR 50391 | Proposed Approval | Attainment Date Extension |
| 08/02/2002 | Baton Rouge, LA | LOUISIANA | 67 FR 50391 | Withdrawal | Change to a Higher Classification (Bump-Ups) |
| 07/31/2002 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 67 FR 49600 | Final Approval | Redesignation to Maintenance |
| 07/02/2002 | Washington, DC-MD-VA | DISTRICT OF COL | 99 FR 1070 | Court-Order | Attainment Date Extension Vacated |
| 07/02/2002 | Washington, DC-MD-VA | MARYLAND | 99 FR 1070 | Court-Order | Attainment Date Extension Vacated |
| 07/02/2002 | Washington, DC-MD-VA | VIRGINIA | 99 FR 1070 | Court-Order | Attainment Date Extension Vacated |
| 07/01/2002 | Santa Barbara-Santa Maria-Lompoc, CA | CALIFORNIA | 67 FR 44128 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 06/24/2002 | Baton Rouge, LA | LOUISIANA | 67 FR 42697 | Proposed Approval | Deferral of Designation |
| 06/24/2002 | Baton Rouge, LA | LOUISIANA | 67 FR 42687 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 05/07/2002 | Atlanta, GA | GEORGIA | 67 FR 30574 | Final Approval | Attainment Date Extension |
| 04/08/2002 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 67 FR 16646 | Withdrawal | Redesignation to Maintenance |
| 03/12/2002 | Cincinnati-Hamilton, OH-KY | OHIO | 67 FR 11041 | Final Approval | Technical Amendment |
| 02/12/2002 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 67 FR 6459 | Proposed Approval | Redesignation to Maintenance |
| 02/12/2002 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 67 FR 6411 | Direct Final | Redesignation to Maintenance |
| 12/26/2001 | Lafourche Parish, LA | LOUISIANA | 66 FR 66382 | Proposed Approval | Redesignation to Maintenance |
| 12/26/2001 | Lafourche Parish, LA | LOUISIANA | 66 FR 66317 | Direct Final | Redesignation to Maintenance |
| 12/11/2001 | Atlanta, GA | GEORGIA | 66 FR 63972 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 12/11/2001 | Atlanta, GA | GEORGIA | 66 FR 63972 | Proposed Approval | Attainment Date Extension |
| 11/08/2001 | East Kern County, CA | CALIFORNIA | 66 FR 56476 | Final Approval | Area Split |
| 11/08/2001 | East Kern County, CA | CALIFORNIA | 66 FR 56476 | Final Approval | Attainment Date Extension |
| 11/08/2001 | San Joaquin Valley, CA | CALIFORNIA | 66 FR 56476 | Final Approval | Area Split |
| 11/08/2001 | San Joaquin Valley, CA | CALIFORNIA | 66 FR 56476 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 10/23/2001 | Louisville, KY-IN | INDIANA | 66 FR 53665 | Final Approval | Redesignation to Maintenance |
| 10/23/2001 | Louisville, KY-IN | KENTUCKY | 66 FR 53665 | Final Approval | Redesignation to Maintenance |
| 10/19/2001 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 66 FR 53094 | Final Approval | Redesignation to Maintenance |
| 09/20/2001 | San Francisco-Bay Area, CA | CALIFORNIA | 66 FR 48340 | Final Approval | Failure to Attain by Attainment Date |
| 09/11/2001 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 99 FR 9000 | Court-Order | Redesignation to Maintenance Vacated |
| 09/11/2001 | Cincinnati-Hamilton, OH-KY | OHIO | 99 FR 9000 | Court-Order | Redesignation to Maintenance Vacated |
| 09/11/2001 | Denver-Boulder, CO | COLORADO | 66 FR 47086 | Final Approval | Redesignation to Maintenance |
| 08/06/2001 | San Diego, CA | CALIFORNIA | 66 FR 40953 | Proposed Approval | Attainment Date Extension |
| 08/06/2001 | San Diego, CA | CALIFORNIA | 66 FR 40908 | Direct Final | Attainment Date Extension |
| 07/25/2001 | Baton Rouge, LA | LOUISIANA | 66 FR 38608 | Proposed Approval | Attainment Date Extension |
| 06/26/2001 | St. Louis, MO-IL | ILLINOIS | 66 FR 33995 | Final Approval | Attainment Date Extension |
| 06/26/2001 | St. Louis, MO-IL | MISSOURI | 66 FR 33995 | Final Approval | Attainment Date Extension |
| 06/22/2001 | Louisville, KY-IN | INDIANA | 66 FR 33505 | Proposed Approval | Redesignation to Maintenance |
| 06/22/2001 | Louisville, KY-IN | KENTUCKY | 66 FR 33505 | Proposed Approval | Redesignation to Maintenance |
| 05/30/2001 | Phoenix, AZ | ARIZONA | 66 FR 29230 | Final Approval | Clean Data Determination/Attainment Determination |
| 05/30/2001 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 66 FR 29270 | Proposed Approval | Redesignation to Maintenance |
| 05/18/2001 | East Kern County, CA | CALIFORNIA | 66 FR 27616 | Proposed Approval | Area Split |
| 05/18/2001 | East Kern County, CA | CALIFORNIA | 66 FR 27616 | Proposed Approval | Attainment Date Extension |
| 05/18/2001 | San Joaquin Valley, CA | CALIFORNIA | 66 FR 27616 | Proposed Approval | Area Split |
| 05/18/2001 | San Joaquin Valley, CA | CALIFORNIA | 66 FR 27616 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 05/17/2001 | Louisville, KY-IN | INDIANA | 66 FR 27483 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/17/2001 | Louisville, KY-IN | KENTUCKY | 66 FR 27483 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/15/2001 | Beaumont-Port Arthur, TX | TEXAS | 66 FR 26913 | Final Approval | Attainment Date Extension |
| 05/11/2001 | Denver-Boulder, CO | COLORADO | 66 FR 24075 | Proposed Approval | Redesignation to Maintenance |
| 05/09/2001 | Baton Rouge, LA | LOUISIANA | 66 FR 23646 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 05/09/2001 | Baton Rouge, LA | LOUISIANA | 66 FR 23646 | Proposed Approval | Attainment Date Extension |
| 04/03/2001 | St. Louis, MO-IL | ILLINOIS | 66 FR 17647 | Proposed Approval | Attainment Date Extension |
| 04/03/2001 | St. Louis, MO-IL | ILLINOIS | 66 FR 17647 | Withdrawal | Change to a Higher Classification (Bump-Ups) |
| 04/03/2001 | St. Louis, MO-IL | MISSOURI | 66 FR 17647 | Proposed Approval | Attainment Date Extension |
| 04/03/2001 | St. Louis, MO-IL | MISSOURI | 66 FR 17647 | Withdrawal | Change to a Higher Classification (Bump-Ups) |
| 03/19/2001 | St. Louis, MO-IL | ILLINOIS | 66 FR 15577 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 03/19/2001 | St. Louis, MO-IL | MISSOURI | 66 FR 15577 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 01/18/2001 | Dallas-Fort Worth, TX | TEXAS | 66 FR 4756 | Proposed Approval | Attainment Date Extension |
| 01/10/2001 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 66 FR 1925 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/03/2001 | Greater Connecticut, CT | CONNECTICUT | 66 FR 633 | Final Approval | Attainment Date Extension |
| 01/03/2001 | Springfield (Western MA), MA | MASSACHUSETTS | 66 FR 665 | Final Approval | Attainment Date Extension |
| 01/03/2001 | Washington, DC-MD-VA | DISTRICT OF COL | 66 FR 585 | Final Approval | Attainment Date Extension |
| 01/03/2001 | Washington, DC-MD-VA | MARYLAND | 66 FR 585 | Final Approval | Attainment Date Extension |
| 01/03/2001 | Washington, DC-MD-VA | VIRGINIA | 66 FR 585 | Final Approval | Attainment Date Extension |
| 12/27/2000 | Beaumont-Port Arthur, TX | TEXAS | 65 FR 81786 | Proposed Approval | Attainment Date Extension |
| 11/24/2000 | Allegan County, MI | MICHIGAN | 65 FR 70540 | Proposed Approval | Redesignation to Maintenance |
| 11/24/2000 | Allegan County, MI | MICHIGAN | 65 FR 70490 | Direct Final | Redesignation to Maintenance |
| 11/13/2000 | Flint, MI | MICHIGAN | 65 FR 67675 | Proposed Approval | Redesignation to Maintenance |
| 11/13/2000 | Flint, MI | MICHIGAN | 65 FR 67629 | Direct Final | Redesignation to Maintenance |
| 11/13/2000 | Saginaw-Bay City-Midland, MI | MICHIGAN | 65 FR 67675 | Proposed Approval | Redesignation to Maintenance |
| 11/13/2000 | Saginaw-Bay City-Midland, MI | MICHIGAN | 65 FR 67629 | Direct Final | Redesignation to Maintenance |
| 10/11/2000 | San Diego, CA | CALIFORNIA | 65 FR 60386 | Proposed Approval | Attainment Date Extension |
| 10/11/2000 | San Diego, CA | CALIFORNIA | 65 FR 60362 | Direct Final | Attainment Date Extension |
| 08/30/2000 | Muskegon, MI | MICHIGAN | 65 FR 52690 | Proposed Approval | Redesignation to Maintenance |
| 08/30/2000 | Muskegon, MI | MICHIGAN | 65 FR 52651 | Direct Final | Redesignation to Maintenance |
| 06/19/2000 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 65 FR 37879 | Final Approval | Redesignation to Maintenance |
| 06/19/2000 | Cincinnati-Hamilton, OH-KY | OHIO | 65 FR 37879 | Final Approval | Redesignation to Maintenance |
| 06/19/2000 | San Joaquin Valley, CA | CALIFORNIA | 65 FR 37926 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 05/19/2000 | Phoenix, AZ | ARIZONA | 65 FR 31859 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 01/24/2000 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 65 FR 3630 | Proposed Approval | Redesignation to Maintenance |
| 01/24/2000 | Cincinnati-Hamilton, OH-KY | OHIO | 65 FR 3630 | Proposed Approval | Redesignation to Maintenance |
| 12/16/1999 | Greater Connecticut, CT | CONNECTICUT | 64 FR 70332 | Proposed Approval | Attainment Date Extension |
| 12/16/1999 | Springfield (Western MA), MA | MASSACHUSETTS | 64 FR 70319 | Proposed Approval | Attainment Date Extension |
| 12/16/1999 | Washington, DC-MD-VA | DISTRICT OF COL | 64 FR 70460 | Proposed Approval | Attainment Date Extension |
| 12/16/1999 | Washington, DC-MD-VA | MARYLAND | 64 FR 70460 | Proposed Approval | Attainment Date Extension |
| 12/16/1999 | Washington, DC-MD-VA | VIRGINIA | 64 FR 70460 | Proposed Approval | Attainment Date Extension |
| 07/22/1999 | San Francisco-Bay Area, CA | CALIFORNIA | 64 FR 39416 | Final Approval | Correction/Clarification |
| 05/21/1999 | Louisville, KY-IN | INDIANA | 64 FR 27734 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 05/21/1999 | Louisville, KY-IN | KENTUCKY | 64 FR 27734 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 04/16/1999 | Beaumont-Port Arthur, TX | TEXAS | 64 FR 18864 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 03/18/1999 | San Francisco-Bay Area, CA | CALIFORNIA | 64 FR 13383 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 03/18/1999 | St. Louis, MO-IL | ILLINOIS | 64 FR 13384 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 03/18/1999 | St. Louis, MO-IL | MISSOURI | 64 FR 13384 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 07/10/1998 | San Francisco-Bay Area, CA | CALIFORNIA | 63 FR 37258 | Final Approval | Designation to Nonattainment |
| 03/26/1998 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 63 FR 14673 | Proposed Approval | Attainment Date Extension |
| 03/26/1998 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 63 FR 14623 | Direct Final | Attainment Date Extension |
| 03/26/1998 | Cincinnati-Hamilton, OH-KY | OHIO | 63 FR 14673 | Proposed Approval | Attainment Date Extension |
| 03/26/1998 | Cincinnati-Hamilton, OH-KY | OHIO | 63 FR 14623 | Direct Final | Attainment Date Extension |
| 02/18/1998 | Dallas-Fort Worth, TX | TEXAS | 63 FR 8128 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 12/19/1997 | San Francisco-Bay Area, CA | CALIFORNIA | 62 FR 66578 | Proposed Approval | Designation to Nonattainment |
| 12/10/1997 | Santa Barbara-Santa Maria-Lompoc, CA | CALIFORNIA | 62 FR 65025 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 12/09/1997 | Evansville, IN | INDIANA | 62 FR 64725 | Final Approval | Redesignation to Maintenance |
| 12/05/1997 | Lafourche Parish, LA | LOUISIANA | 62 FR 64284 | Final Approval | Correction/Clarification |
| 11/17/1997 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 62 FR 61241 | Final Approval | Attainment Date Extension |
| 11/17/1997 | Cincinnati-Hamilton, OH-KY | OHIO | 62 FR 61241 | Final Approval | Attainment Date Extension |
| 11/17/1997 | Richmond, VA | VIRGINIA | 62 FR 61237 | Final Approval | Redesignation to Maintenance |
| 11/06/1997 | Phoenix, AZ | ARIZONA | 62 FR 60001 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 10/23/1997 | Louisville, KY-IN | INDIANA | 62 FR 55203 | Proposed Approval | Attainment Date Extension |
| 10/23/1997 | Louisville, KY-IN | INDIANA | 62 FR 55173 | Direct Final | Attainment Date Extension |
| 10/23/1997 | Louisville, KY-IN | KENTUCKY | 62 FR 55203 | Proposed Approval | Attainment Date Extension |
| 10/23/1997 | Louisville, KY-IN | KENTUCKY | 62 FR 55173 | Direct Final | Attainment Date Extension |
| 09/19/1997 | Birmingham, AL | ALABAMA | 62 FR 49154 | Final Disapproval | Redesignation to Maintenance |
| 09/02/1997 | Dallas-Fort Worth, TX | TEXAS | 62 FR 46238 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 09/02/1997 | Phoenix, AZ | ARIZONA | 62 FR 46229 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 09/02/1997 | Santa Barbara-Santa Maria-Lompoc, CA | CALIFORNIA | 62 FR 46234 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 08/04/1997 | Richmond, VA | VIRGINIA | 62 FR 43471 | Withdrawal | Redesignation to Maintenance |
| 07/28/1997 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 62 FR 40280 | Withdrawal | Attainment Date Extension |
| 07/28/1997 | Cincinnati-Hamilton, OH-KY | OHIO | 62 FR 40280 | Withdrawal | Attainment Date Extension |
| 07/17/1997 | Lafourche Parish, LA | LOUISIANA | 62 FR 38237 | Proposed Approval | Correction/Clarification |
| 07/17/1997 | Salt Lake City, UT | UTAH | 62 FR 38213 | Final Approval | Redesignation to Maintenance |
| 06/26/1997 | Norfolk-Virginia Beach-Newport News (Hampton Roads), VA | VIRGINIA | 62 FR 34408 | Final Approval | Redesignation to Maintenance |
| 06/13/1997 | Richmond, VA | VIRGINIA | 62 FR 32258 | Proposed Approval | Redesignation to Maintenance |
| 06/13/1997 | Richmond, VA | VIRGINIA | 62 FR 32204 | Direct Final | Redesignation to Maintenance |
| 05/27/1997 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 62 FR 28650 | Proposed Approval | Attainment Date Extension |
| 05/27/1997 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 62 FR 28634 | Direct Final | Attainment Date Extension |
| 05/27/1997 | Cincinnati-Hamilton, OH-KY | OHIO | 62 FR 28650 | Proposed Approval | Attainment Date Extension |
| 05/27/1997 | Cincinnati-Hamilton, OH-KY | OHIO | 62 FR 28634 | Direct Final | Attainment Date Extension |
| 05/23/1997 | Salt Lake City, UT | UTAH | 62 FR 28396 | Proposed Approval | Redesignation to Maintenance |
| 05/19/1997 | Portland-Vancouver AQMA, OR-WA | OREGON | 62 FR 27204 | Final Approval | Redesignation to Maintenance |
| 05/19/1997 | Portland-Vancouver AQMA, OR-WA | WASHINGTON | 62 FR 27204 | Final Approval | Redesignation to Maintenance |
| 05/07/1997 | Reading, PA | PENNSYLVANIA | 62 FR 24826 | Final Approval | Redesignation to Maintenance |
| 05/02/1997 | Lake Charles, LA | LOUISIANA | 62 FR 24036 | Final Approval | Redesignation to Maintenance |
| 04/30/1997 | Birmingham, AL | ALABAMA | 62 FR 23421 | Proposed Disapproval | Redesignation to Maintenance |
| 04/29/1997 | Norfolk-Virginia Beach-Newport News (Hampton Roads), VA | VIRGINIA | 62 FR 23196 | Proposed Approval | Redesignation to Maintenance |
| 04/29/1997 | Norfolk-Virginia Beach-Newport News (Hampton Roads), VA | VIRGINIA | 62 FR 23139 | Withdrawal | Redesignation to Maintenance |
| 04/16/1997 | Portland, ME | MAINE | 62 FR 18557 | Proposed Approval | Attainment Date Extension |
| 04/16/1997 | Portland, ME | MAINE | 62 FR 18526 | Direct Final | Attainment Date Extension |
| 03/14/1997 | Evansville, IN | INDIANA | 62 FR 12137 | Proposed Approval | Redesignation to Maintenance |
| 03/12/1997 | Norfolk-Virginia Beach-Newport News (Hampton Roads), VA | VIRGINIA | 62 FR 11405 | Proposed Approval | Redesignation to Maintenance |
| 03/12/1997 | Norfolk-Virginia Beach-Newport News (Hampton Roads), VA | VIRGINIA | 62 FR 11337 | Direct Final | Redesignation to Maintenance |
| 03/07/1997 | Dayton-Springfield, OH | OHIO | 62 FR 10463 | Final Approval | Correction/Clarification |
| 03/07/1997 | Portland-Vancouver AQMA, OR-WA | OREGON | 62 FR 10501 | Proposed Approval | Redesignation to Maintenance |
| 03/07/1997 | Portland-Vancouver AQMA, OR-WA | WASHINGTON | 62 FR 10501 | Proposed Approval | Redesignation to Maintenance |
| 02/28/1997 | Hancock County and Waldo County, ME | MAINE | 62 FR 9140 | Proposed Approval | Redesignation to Maintenance |
| 02/28/1997 | Hancock County and Waldo County, ME | MAINE | 62 FR 9081 | Direct Final | Redesignation to Maintenance |
| 02/25/1997 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 62 FR 8414 | Proposed Approval | Attainment Date Extension |
| 02/25/1997 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 62 FR 8389 | Direct Final | Attainment Date Extension |
| 02/18/1997 | Cincinnati-Hamilton, OH-KY | OHIO | 62 FR 7194 | Proposed Disapproval | Redesignation to Maintenance |
| 02/06/1997 | Lake Charles, LA | LOUISIANA | 62 FR 5555 | Proposed Approval | Redesignation to Maintenance |
| 01/17/1997 | Monterey Bay, CA | CALIFORNIA | 62 FR 2636 | Proposed Approval | Redesignation to Maintenance |
| 01/17/1997 | Monterey Bay, CA | CALIFORNIA | 62 FR 2597 | Direct Final | Redesignation to Maintenance |
| 01/06/1997 | Pointe Coupee Parish, LA | LOUISIANA | 62 FR 648 | Final Approval | Change to a Lower Classification |
| 01/06/1997 | Pointe Coupee Parish, LA | LOUISIANA | 62 FR 648 | Final Approval | Redesignation to Maintenance |
| 10/30/1996 | Nashville, TN | TENNESSEE | 61 FR 55903 | Final Approval | Redesignation to Maintenance |
| 10/10/1996 | Reading, PA | PENNSYLVANIA | 61 FR 53174 | Proposed Approval | Redesignation to Maintenance |
| 09/27/1996 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 61 FR 50718 | Final Disapproval | Redesignation to Maintenance |
| 09/26/1996 | Seattle-Tacoma, WA | WASHINGTON | 61 FR 50465 | Proposed Approval | Redesignation to Maintenance |
| 09/26/1996 | Seattle-Tacoma, WA | WASHINGTON | 61 FR 50438 | Direct Final | Redesignation to Maintenance |
| 09/25/1996 | Baton Rouge, LA | LOUISIANA | 61 FR 50238 | Withdrawal | Redesignation to Maintenance |
| 09/25/1996 | Pointe Coupee Parish, LA | LOUISIANA | 61 FR 50238 | Withdrawal | Redesignation to Maintenance |
| 08/26/1996 | Kewaunee County, WI | WISCONSIN | 61 FR 43668 | Final Approval | Redesignation to Maintenance |
| 08/26/1996 | Sheboygan, WI | WISCONSIN | 61 FR 43668 | Final Approval | Redesignation to Maintenance |
| 08/26/1996 | Walworth County, WI | WISCONSIN | 61 FR 43668 | Final Approval | Redesignation to Maintenance |
| 07/22/1996 | Baton Rouge, LA | LOUISIANA | 61 FR 37833 | Direct Final | Redesignation to Maintenance |
| 07/22/1996 | Pointe Coupee Parish, LA | LOUISIANA | 61 FR 37875 | Proposed Approval | Area Split |
| 07/22/1996 | Pointe Coupee Parish, LA | LOUISIANA | 61 FR 37875 | Proposed Approval | Change to a Lower Classification |
| 07/22/1996 | Pointe Coupee Parish, LA | LOUISIANA | 61 FR 37875 | Proposed Approval | Redesignation to Maintenance |
| 07/22/1996 | Pointe Coupee Parish, LA | LOUISIANA | 61 FR 37833 | Direct Final | Area Split |
| 07/22/1996 | Pointe Coupee Parish, LA | LOUISIANA | 61 FR 37833 | Direct Final | Change to a Lower Classification |
| 07/22/1996 | Pointe Coupee Parish, LA | LOUISIANA | 61 FR 37833 | Direct Final | Redesignation to Maintenance |
| 06/24/1996 | Nashville, TN | TENNESSEE | 61 FR 32386 | Proposed Approval | Redesignation to Maintenance |
| 06/21/1996 | Grand Rapids, MI | MICHIGAN | 61 FR 31831 | Final Approval | Redesignation to Maintenance |
| 06/11/1996 | Kewaunee County, WI | WISCONSIN | 61 FR 29508 | Proposed Approval | Redesignation to Maintenance |
| 06/11/1996 | Manitowoc County, WI | WISCONSIN | 61 FR 29508 | Proposed Approval | Redesignation to Maintenance |
| 06/11/1996 | Sheboygan, WI | WISCONSIN | 61 FR 29508 | Proposed Approval | Redesignation to Maintenance |
| 06/05/1996 | Walworth County, WI | WISCONSIN | 61 FR 28541 | Proposed Approval | Redesignation to Maintenance |
| 06/04/1996 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 61 FR 28061 | Final Approval | Clean Data Determination Revocation |
| 05/12/1996 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 61 FR 5360 | Proposed Approval | Clean Data Determination Revocation |
| 05/07/1996 | Cleveland-Akron-Lorain, OH | OHIO | 61 FR 20458 | Final Approval | Redesignation to Maintenance |
| 05/01/1996 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 61 FR 19193 | Final Disapproval | Redesignation to Maintenance |
| 04/17/1996 | Cincinnati-Hamilton, OH-KY | KENTUCKY | 61 FR 16738 | Proposed Disapproval | Redesignation to Maintenance |
| 04/02/1996 | Beaumont-Port Arthur, TX | TEXAS | 61 FR 14496 | Direct Final | Change to a Lower Classification |
| 04/02/1996 | Grand Rapids, MI | MICHIGAN | 61 FR 14522 | Proposed Approval | Redesignation to Maintenance |
| 03/21/1996 | Clinton County, OH | OHIO | 61 FR 11560 | Final Approval | Redesignation to Maintenance |
| 02/14/1996 | Allegan County, MI | MICHIGAN | 61 FR 5707 | Final Approval | Correction/Clarification |
| 02/07/1996 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 61 FR 4598 | Proposed Disapproval | Redesignation to Maintenance |
| 02/01/1996 | Columbus, OH | OHIO | 61 FR 3635 | Proposed Approval | Redesignation to Maintenance |
| 02/01/1996 | Columbus, OH | OHIO | 61 FR 3591 | Direct Final | Redesignation to Maintenance |
| 01/31/1996 | Canton, OH | OHIO | 61 FR 3362 | Proposed Approval | Redesignation to Maintenance |
| 01/31/1996 | Canton, OH | OHIO | 61 FR 3319 | Direct Final | Redesignation to Maintenance |
| 01/31/1996 | Youngstown-Warren-Sharon, OH-PA | OHIO | 61 FR 3362 | Proposed Approval | Redesignation to Maintenance |
| 01/31/1996 | Youngstown-Warren-Sharon, OH-PA | OHIO | 61 FR 3319 | Direct Final | Redesignation to Maintenance |
| 12/07/1995 | Tampa-St. Petersburg-Clearwater, FL | FLORIDA | 60 FR 62793 | Proposed Approval | Redesignation to Maintenance |
| 12/07/1995 | Tampa-St. Petersburg-Clearwater, FL | FLORIDA | 60 FR 62748 | Direct Final | Redesignation to Maintenance |
| 10/23/1995 | Richmond, VA | VIRGINIA | 60 FR 54310 | Final Approval | Boundary Change |
| 10/02/1995 | Allegan County, MI | MICHIGAN | 60 FR 51360 | Withdrawal | Correction/Clarification |
| 10/02/1995 | New Orleans, LA | LOUISIANA | 60 FR 51382 | Proposed Approval | Redesignation to Maintenance |
| 10/02/1995 | New Orleans, LA | LOUISIANA | 60 FR 51354 | Direct Final | Redesignation to Maintenance |
| 09/12/1995 | St. James Parish, LA | LOUISIANA | 60 FR 47324 | Proposed Approval | Redesignation to Maintenance |
| 09/12/1995 | St. James Parish, LA | LOUISIANA | 60 FR 47280 | Direct Final | Redesignation to Maintenance |
| 09/11/1995 | Lexington-Fayette, KY | KENTUCKY | 60 FR 47139 | Proposed Approval | Redesignation to Maintenance |
| 09/11/1995 | Lexington-Fayette, KY | KENTUCKY | 60 FR 47089 | Direct Final | Redesignation to Maintenance |
| 08/18/1995 | Beauregard Parish, LA | LOUISIANA | 60 FR 43104 | Proposed Approval | Redesignation to Maintenance |
| 08/18/1995 | Beauregard Parish, LA | LOUISIANA | 60 FR 43020 | Direct Final | Redesignation to Maintenance |
| 08/18/1995 | Grant Parish, LA | LOUISIANA | 60 FR 43104 | Proposed Approval | Redesignation to Maintenance |
| 08/18/1995 | Grant Parish, LA | LOUISIANA | 60 FR 43020 | Direct Final | Redesignation to Maintenance |
| 08/18/1995 | Lafayette, LA | LOUISIANA | 60 FR 43104 | Proposed Approval | Redesignation to Maintenance |
| 08/18/1995 | Lafayette, LA | LOUISIANA | 60 FR 43020 | Direct Final | Redesignation to Maintenance |
| 08/18/1995 | Lafourche Parish, LA | LOUISIANA | 60 FR 43104 | Proposed Approval | Redesignation to Maintenance |
| 08/18/1995 | Lafourche Parish, LA | LOUISIANA | 60 FR 43020 | Direct Final | Redesignation to Maintenance |
| 08/18/1995 | St. Mary Parish, LA | LOUISIANA | 60 FR 43104 | Proposed Approval | Redesignation to Maintenance |
| 08/18/1995 | St. Mary Parish, LA | LOUISIANA | 60 FR 43020 | Direct Final | Redesignation to Maintenance |
| 08/08/1995 | Allegan County, MI | MICHIGAN | 60 FR 40338 | Proposed Approval | Correction/Clarification |
| 08/08/1995 | Allegan County, MI | MICHIGAN | 60 FR 40297 | Direct Final | Correction/Clarification |
| 08/04/1995 | Greenbrier, WV | WEST VIRGINIA | 60 FR 39911 | Proposed Approval | Redesignation to Maintenance |
| 08/04/1995 | Greenbrier, WV | WEST VIRGINIA | 60 FR 39857 | Direct Final | Redesignation to Maintenance |
| 08/01/1995 | Toledo, OH | OHIO | 60 FR 39115 | Final Approval | Redesignation to Maintenance |
| 07/05/1995 | Charlotte-Gastonia, NC | NORTH CAROLINA | 60 FR 34859 | Final Approval | Redesignation to Maintenance |
| 06/29/1995 | Huntington-Ashland, WV-KY | KENTUCKY | 60 FR 33748 | Final Approval | Redesignation to Maintenance |
| 06/28/1995 | Hancock County and Waldo County, ME | MAINE | 60 FR 33351 | Final Approval | Attainment Date Extension |
| 06/19/1995 | Toledo, OH | OHIO | 60 FR 31917 | Withdrawal | Redesignation to Maintenance |
| 06/15/1995 | Cleveland-Akron-Lorain, OH | OHIO | 60 FR 31433 | Proposed Approval | Redesignation to Maintenance |
| 06/12/1995 | Dona Ana County (part); Sunland Park, NM | NEW MEXICO | 60 FR 30789 | Final Approval | Designation to Nonattainment |
| 05/26/1995 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 60 FR 27945 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/26/1995 | Pittsburgh-Beaver Valley, PA | PENNSYLVANIA | 60 FR 27893 | Direct Final | Clean Data Determination/Attainment Determination |
| 05/26/1995 | Reading, PA | PENNSYLVANIA | 60 FR 27945 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 05/26/1995 | Reading, PA | PENNSYLVANIA | 60 FR 27893 | Direct Final | Clean Data Determination/Attainment Determination |
| 05/22/1995 | San Francisco-Bay Area, CA | CALIFORNIA | 60 FR 27028 | Final Approval | Redesignation to Maintenance |
| 05/05/1995 | Cincinnati-Hamilton, OH-KY | OHIO | 60 FR 22337 | Proposed Approval | Redesignation to Maintenance |
| 05/05/1995 | Clinton County, OH | OHIO | 60 FR 22337 | Proposed Approval | Redesignation to Maintenance |
| 05/05/1995 | Dayton-Springfield, OH | OHIO | 60 FR 22336 | Proposed Approval | Redesignation to Maintenance |
| 05/05/1995 | Dayton-Springfield, OH | OHIO | 60 FR 22289 | Direct Final | Redesignation to Maintenance |
| 05/02/1995 | Toledo, OH | OHIO | 60 FR 21490 | Proposed Approval | Redesignation to Maintenance |
| 05/02/1995 | Toledo, OH | OHIO | 60 FR 21456 | Direct Final | Redesignation to Maintenance |
| 04/25/1995 | Sacramento Metro, CA | CALIFORNIA | 60 FR 20237 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 04/17/1995 | Charlotte-Gastonia, NC | NORTH CAROLINA | 60 FR 19197 | Proposed Approval | Redesignation to Maintenance |
| 04/07/1995 | Dona Ana County (part); Sunland Park, NM | NEW MEXICO | 60 FR 17756 | Proposed Approval | Designation to Nonattainment |
| 03/14/1995 | Jersey County, IL | ILLINOIS | 60 FR 13634 | Final Approval | Redesignation to Maintenance |
| 03/13/1995 | Norfolk-Virginia Beach-Newport News (Hampton Roads), VA | VIRGINIA | 60 FR 13368 | Withdrawal | Change to a Higher Classification (Bump-Ups) |
| 03/07/1995 | Detroit-Ann Arbor, MI | MICHIGAN | 60 FR 12459 | Final Approval | Redesignation to Maintenance |
| 03/07/1995 | Victoria, TX | TEXAS | 60 FR 12520 | Proposed Approval | Redesignation to Maintenance |
| 03/07/1995 | Victoria, TX | TEXAS | 60 FR 12453 | Direct Final | Redesignation to Maintenance |
| 02/24/1995 | Miami-Fort Lauderdale-W. Palm Beach, FL | FLORIDA | 60 FR 10341 | Proposed Approval | Redesignation to Maintenance |
| 02/24/1995 | Miami-Fort Lauderdale-W. Palm Beach, FL | FLORIDA | 60 FR 10325 | Direct Final | Redesignation to Maintenance |
| 02/22/1995 | Hancock County and Waldo County, ME | MAINE | 60 FR 9813 | Proposed Approval | Attainment Date Extension |
| 02/08/1995 | Columbiana County, OH | OHIO | 60 FR 7453 | Final Approval | Redesignation to Maintenance |
| 02/08/1995 | Preble County, OH | OHIO | 60 FR 7453 | Final Approval | Redesignation to Maintenance |
| 02/08/1995 | Steubenville, OH | OHIO | 60 FR 7453 | Final Approval | Redesignation to Maintenance |
| 02/07/1995 | Paducah, KY | KENTUCKY | 60 FR 7154 | Proposed Approval | Redesignation to Maintenance |
| 02/07/1995 | Paducah, KY | KENTUCKY | 60 FR 7124 | Direct Final | Redesignation to Maintenance |
| 01/30/1995 | Columbiana County, OH | OHIO | 60 FR 5582 | Withdrawal | Redesignation to Maintenance |
| 01/30/1995 | Preble County, OH | OHIO | 60 FR 5582 | Withdrawal | Redesignation to Maintenance |
| 01/30/1995 | Steubenville, OH | OHIO | 60 FR 5582 | Withdrawal | Redesignation to Maintenance |
| 01/19/1995 | San Diego, CA | CALIFORNIA | 60 FR 3771 | Final Approval | Change to a Lower Classification |
| 01/17/1995 | Allentown-Bethlehem-Easton, PA-NJ | NEW JERSEY | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Allentown-Bethlehem-Easton, PA-NJ | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Altoona, PA | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Erie, PA | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Greenbrier, WV | WEST VIRGINIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Harrisburg-Lebanon-Carlisle, PA | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Johnstown, PA | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Kent County and Queen Anne's County, MD | MARYLAND | 60 FR 3349 | Direct Final | Failure to Attain by Attainment Date |
| 01/17/1995 | Kent County and Queen Anne's County, MD | MARYLAND | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Lancaster, PA | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Memphis, TN | TENNESSEE | 60 FR 3352 | Final Approval | Redesignation to Maintenance |
| 01/17/1995 | Norfolk-Virginia Beach-Newport News (Hampton Roads), VA | VIRGINIA | 60 FR 3349 | Direct Final | Change to a Higher Classification (Bump-Ups) |
| 01/17/1995 | Scranton-Wilkes-Barre, PA | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Sussex County, DE | DELAWARE | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | York, PA | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Youngstown-Warren-Sharon, OH-PA | OHIO | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/17/1995 | Youngstown-Warren-Sharon, OH-PA | PENNSYLVANIA | 60 FR 3349 | Direct Final | Clean Data Determination/Attainment Determination |
| 01/03/1995 | Jacksonville, FL | FLORIDA | 60 FR 41 | Direct Final | Redesignation to Maintenance |
| 12/21/1994 | Huntington-Ashland, WV-KY | WEST VIRGINIA | 59 FR 65719 | Final Approval | Redesignation to Maintenance |
| 12/16/1994 | Huntington-Ashland, WV-KY | KENTUCKY | 59 FR 65000 | Proposed Approval | Redesignation to Maintenance |
| 11/25/1994 | Jersey County, IL | ILLINOIS | 59 FR 60577 | Proposed Approval | Redesignation to Maintenance |
| 11/03/1994 | Edmonson County, KY | KENTUCKY | 59 FR 55072 | Proposed Approval | Redesignation to Maintenance |
| 11/03/1994 | Edmonson County, KY | KENTUCKY | 59 FR 55053 | Direct Final | Redesignation to Maintenance |
| 11/03/1994 | Huntington-Ashland, WV-KY | WEST VIRGINIA | 59 FR 55059 | Withdrawal | Redesignation to Maintenance |
| 11/03/1994 | Owensboro, KY | KENTUCKY | 59 FR 55072 | Proposed Approval | Redesignation to Maintenance |
| 11/03/1994 | Owensboro, KY | KENTUCKY | 59 FR 55053 | Direct Final | Redesignation to Maintenance |
| 10/31/1994 | Indianapolis, IN | INDIANA | 59 FR 54391 | Final Approval | Redesignation to Maintenance |
| 10/31/1994 | South Bend-Elkhart, IN | INDIANA | 59 FR 54391 | Final Approval | Redesignation to Maintenance |
| 10/26/1994 | Memphis, TN | TENNESSEE | 59 FR 53741 | Withdrawal | Redesignation to Maintenance |
| 10/06/1994 | Albany-Schenectady-Troy, NY | NEW YORK | 59 FR 50848 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/06/1994 | Allentown-Bethlehem-Easton, PA-NJ | NEW JERSEY | 59 FR 50848 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/06/1994 | Buffalo-Niagara Falls, NY | NEW YORK | 59 FR 50848 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/06/1994 | Essex County; Whiteface Mountain, NY | NEW YORK | 59 FR 50848 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/06/1994 | Jefferson County, NY | NEW YORK | 59 FR 50848 | Final Approval | Clean Data Determination/Attainment Determination |
| 10/06/1994 | Poughkeepsie, NY | NEW YORK | 59 FR 50848 | Final Approval | Change to a Higher Classification (Bump-Ups) |
| 09/28/1994 | San Francisco-Bay Area, CA | CALIFORNIA | 59 FR 49361 | Proposed Approval | Redesignation to Maintenance |
| 09/21/1994 | Columbiana County, OH | OHIO | 59 FR 48416 | Proposed Approval | Redesignation to Maintenance |
| 09/21/1994 | Columbiana County, OH | OHIO | 59 FR 48395 | Direct Final | Redesignation to Maintenance |
| 09/21/1994 | Preble County, OH | OHIO | 59 FR 48416 | Proposed Approval | Redesignation to Maintenance |
| 09/21/1994 | Preble County, OH | OHIO | 59 FR 48395 | Direct Final | Redesignation to Maintenance |
| 09/21/1994 | Steubenville, OH | OHIO | 59 FR 48416 | Proposed Approval | Redesignation to Maintenance |
| 09/21/1994 | Steubenville, OH | OHIO | 59 FR 48395 | Direct Final | Redesignation to Maintenance |
| 09/06/1994 | Charleston, WV | WEST VIRGINIA | 59 FR 45985 | Final Approval | Redesignation to Maintenance |
| 09/06/1994 | Huntington-Ashland, WV-KY | WEST VIRGINIA | 59 FR 46019 | Proposed Approval | Redesignation to Maintenance |
| 09/06/1994 | Huntington-Ashland, WV-KY | WEST VIRGINIA | 59 FR 45980 | Direct Final | Redesignation to Maintenance |
| 09/06/1994 | Parkersburg-Marietta, WV | WEST VIRGINIA | 59 FR 45978 | Final Approval | Redesignation to Maintenance |
| 08/26/1994 | Evansville, IN | INDIANA | 59 FR 44040 | Withdrawal | Redesignation to Maintenance |
| 08/26/1994 | Indianapolis, IN | INDIANA | 59 FR 44040 | Withdrawal | Redesignation to Maintenance |
| 08/26/1994 | South Bend-Elkhart, IN | INDIANA | 59 FR 44040 | Withdrawal | Redesignation to Maintenance |
| 08/04/1994 | Memphis, TN | TENNESSEE | 59 FR 39715 | Proposed Approval | Redesignation to Maintenance |
| 08/04/1994 | Memphis, TN | TENNESSEE | 59 FR 39692 | Direct Final | Redesignation to Maintenance |
| 07/28/1994 | Albany-Schenectady-Troy, NY | NEW YORK | 59 FR 38000 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/28/1994 | Allentown-Bethlehem-Easton, PA-NJ | NEW JERSEY | 59 FR 38000 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/28/1994 | Buffalo-Niagara Falls, NY | NEW YORK | 59 FR 38000 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/28/1994 | Essex County; Whiteface Mountain, NY | NEW YORK | 59 FR 38000 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/28/1994 | Jefferson County, NY | NEW YORK | 59 FR 38000 | Proposed Approval | Clean Data Determination/Attainment Determination |
| 07/28/1994 | Poughkeepsie, NY | NEW YORK | 59 FR 38000 | Proposed Approval | Change to a Higher Classification (Bump-Ups) |
| 07/21/1994 | Detroit-Ann Arbor, MI | MICHIGAN | 59 FR 37190 | Proposed Approval | Redesignation to Maintenance |
| 07/08/1994 | Evansville, IN | INDIANA | 59 FR 35079 | Proposed Approval | Redesignation to Maintenance |
| 07/08/1994 | Evansville, IN | INDIANA | 59 FR 35044 | Direct Final | Redesignation to Maintenance |
| 07/08/1994 | Indianapolis, IN | INDIANA | 59 FR 35079 | Proposed Approval | Redesignation to Maintenance |
| 07/08/1994 | Indianapolis, IN | INDIANA | 59 FR 35044 | Direct Final | Redesignation to Maintenance |
| 07/08/1994 | South Bend-Elkhart, IN | INDIANA | 59 FR 35079 | Proposed Approval | Redesignation to Maintenance |
| 07/08/1994 | South Bend-Elkhart, IN | INDIANA | 59 FR 35044 | Direct Final | Redesignation to Maintenance |
| 06/13/1994 | Charleston, WV | WEST VIRGINIA | 59 FR 30326 | Proposed Approval | Redesignation to Maintenance |
| 06/10/1994 | Parkersburg-Marietta, WV | WEST VIRGINIA | 59 FR 29977 | Proposed Approval | Redesignation to Maintenance |
| 05/03/1994 | Richmond, VA | VIRGINIA | 59 FR 22757 | Final Disapproval | Redesignation to Maintenance |
| 04/21/1994 | Poughkeepsie, NY | NEW YORK | 59 FR 18967 | Final Approval | Boundary Change |
| 04/18/1994 | Raleigh-Durham, NC | NORTH CAROLINA | 59 FR 18300 | Final Approval | Redesignation to Maintenance |
| 01/31/1994 | Richmond, VA | VIRGINIA | 59 FR 4263 | Withdrawal | Redesignation to Maintenance |
| 09/27/1993 | Knoxville, TN | TENNESSEE | 58 FR 50271 | Final Approval | Redesignation to Maintenance |
| 09/09/1993 | Greensboro-Winston-Salem-High Point, NC | NORTH CAROLINA | 58 FR 47391 | Final Approval | Redesignation to Maintenance |
| 08/17/1993 | Richmond, VA | VIRGINIA | 58 FR 43609 | Proposed Approval | Redesignation to Maintenance |
| 03/31/1993 | Knoxville, TN | TENNESSEE | 58 FR 16806 | Proposed Approval | Redesignation to Maintenance |
| 12/15/1992 | Cherokee County, SC | SOUTH CAROLINA | 57 FR 59300 | Final Approval | Redesignation to Maintenance |
| 11/30/1992 | Muskegon, MI | MICHIGAN | 57 FR 56762 | Final Approval | Change to a Lower Classification |
| 11/30/1992 | New York-N. New Jersey-Long Island, NY-NJ-CT | NEW YORK | 57 FR 56762 | Final Approval | Boundary Change |
| 11/30/1992 | Salem, OR | OREGON | 57 FR 56762 | Final Approval | Boundary Change |
| 11/30/1992 | Seattle-Tacoma, WA | WASHINGTON | 57 FR 56762 | Final Approval | Boundary Change |
| 11/30/1992 | Sheboygan, WI | WISCONSIN | 57 FR 56762 | Final Approval | Change to a Lower Classification |
| 06/23/1992 | Kansas City, MO-KS | KANSAS | 57 FR 27936 | Final Approval | Redesignation to Maintenance |
| 06/23/1992 | Kansas City, MO-KS | MISSOURI | 57 FR 27939 | Final Approval | Redesignation to Maintenance |
| 01/15/1992 | Kansas City, MO-KS | KANSAS | 57 FR 1705 | Proposed Approval | Redesignation to Maintenance |
| 01/15/1992 | Kansas City, MO-KS | MISSOURI | 57 FR 1700 | Proposed Approval | Redesignation to Maintenance |
First Notice