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Federal Register Notices Related to 8-Hour Ozone (2008) Designations and Classifications
Federal Register Notices Related to 8-Hour Ozone (2008) Designations and Classifications
Data is current as of November 30, 2025Ordered by Category
Click on the 'FR' link to view the Federal Register Notice
| 179B DETERMINATION | ||||
| 11/01/2019 | CALIFORNIA | Imperial County, CA | 84 FR 58641 | Proposed Approval |
| 02/27/2020 | CALIFORNIA | Imperial County, CA | 85 FR 11817 | Final Approval |
| AREA SPLIT | ||||
| 02/15/2019 | WISCONSIN | Inland Sheboygan County, WI | 84 FR 4422 | Proposed Approval |
| 02/15/2019 | WISCONSIN | Shoreline Sheboygan County, WI | 84 FR 4422 | Proposed Approval |
| 07/15/2019 | WISCONSIN | Inland Sheboygan County, WI | 84 FR 33699 | Final Approval |
| 07/15/2019 | WISCONSIN | Shoreline Sheboygan County, WI | 84 FR 33699 | Final Approval |
| ATTAINMENT DATE EXTENSION | ||||
| 08/27/2015 | CALIFORNIA | San Luis Obispo (Eastern San Luis Obispo), CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | DELAWARE | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | DISTRICT OF COL | Washington, DC-MD-VA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | ILLINOIS | St. Louis-St. Charles-Farmington, MO-IL | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | MARYLAND | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | MARYLAND | Washington, DC-MD-VA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | MISSOURI | St. Louis-St. Charles-Farmington, MO-IL | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | NEW JERSEY | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | OHIO | Cleveland-Akron-Lorain, OH | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | PENNSYLVANIA | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | PENNSYLVANIA | Pittsburgh-Beaver Valley, PA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | TEXAS | Houston-Galveston-Brazoria, TX | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | VIRGINIA | Washington, DC-MD-VA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | WISCONSIN | Inland Sheboygan County, WI | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | WISCONSIN | Shoreline Sheboygan County, WI | 80 FR 51992 | Proposed Approval |
| 05/04/2016 | CALIFORNIA | San Luis Obispo (Eastern San Luis Obispo), CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | DELAWARE | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 81 FR 26697 | Final Approval |
| 05/04/2016 | DISTRICT OF COL | Washington, DC-MD-VA | 81 FR 26697 | Final Approval |
| 05/04/2016 | ILLINOIS | St. Louis-St. Charles-Farmington, MO-IL | 81 FR 26697 | Final Approval |
| 05/04/2016 | MARYLAND | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 81 FR 26697 | Final Approval |
| 05/04/2016 | MARYLAND | Washington, DC-MD-VA | 81 FR 26697 | Final Approval |
| 05/04/2016 | MISSOURI | St. Louis-St. Charles-Farmington, MO-IL | 81 FR 26697 | Final Approval |
| 05/04/2016 | NEW JERSEY | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 81 FR 26697 | Final Approval |
| 05/04/2016 | OHIO | Cleveland-Akron-Lorain, OH | 81 FR 26697 | Final Approval |
| 05/04/2016 | PENNSYLVANIA | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 81 FR 26697 | Final Approval |
| 05/04/2016 | PENNSYLVANIA | Pittsburgh-Beaver Valley, PA | 81 FR 26697 | Final Approval |
| 05/04/2016 | TEXAS | Houston-Galveston-Brazoria, TX | 81 FR 26697 | Final Approval |
| 05/04/2016 | VIRGINIA | Washington, DC-MD-VA | 81 FR 26697 | Final Approval |
| 05/04/2016 | WISCONSIN | Inland Sheboygan County, WI | 81 FR 26697 | Final Approval |
| 05/04/2016 | WISCONSIN | Shoreline Sheboygan County, WI | 81 FR 26697 | Final Approval |
| 11/14/2018 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | WISCONSIN | Inland Sheboygan County, WI | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | WISCONSIN | Shoreline Sheboygan County, WI | 83 FR 56781 | Proposed Approval |
| 08/23/2019 | WISCONSIN | Inland Sheboygan County, WI | 84 FR 44238 | Final Approval |
| 08/23/2019 | WISCONSIN | Shoreline Sheboygan County, WI | 84 FR 44238 | Final Approval |
| ATTAINMENT DATE EXTENSION DENIED | ||||
| 04/13/2022 | TEXAS | Houston-Galveston-Brazoria, TX | 87 FR 21825 | Proposed Approval |
| 10/07/2022 | TEXAS | Houston-Galveston-Brazoria, TX | 87 FR 60926 | Final Approval |
| CHANGE TO A HIGHER CLASSIFICATION (BUMP-UPS) | ||||
| 08/27/2015 | ARIZONA | Phoenix-Mesa, AZ | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | Imperial County, CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | Kern County (Eastern Kern), CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | Mariposa County, CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | Nevada County (Western part), CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | San Diego County, CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CONNECTICUT | Greater Connecticut, CT | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | GEORGIA | Atlanta, GA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | INDIANA | Chicago-Naperville, IL-IN-WI | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 80 FR 51992 | Proposed Approval |
| 05/04/2016 | ARIZONA | Phoenix-Mesa, AZ | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | Imperial County, CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | Kern County (Eastern Kern), CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | Mariposa County, CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | Nevada County (Western part), CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | San Diego County, CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 81 FR 26697 | Final Approval |
| 05/04/2016 | CONNECTICUT | Greater Connecticut, CT | 81 FR 26697 | Final Approval |
| 05/04/2016 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 81 FR 26697 | Final Approval |
| 05/04/2016 | GEORGIA | Atlanta, GA | 81 FR 26697 | Final Approval |
| 05/04/2016 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 81 FR 26697 | Final Approval |
| 05/04/2016 | INDIANA | Chicago-Naperville, IL-IN-WI | 81 FR 26697 | Final Approval |
| 05/04/2016 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 81 FR 26697 | Final Approval |
| 05/04/2016 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 81 FR 26697 | Final Approval |
| 05/04/2016 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 81 FR 26697 | Final Approval |
| 09/27/2016 | TEXAS | Houston-Galveston-Brazoria, TX | 81 FR 66240 | Proposed Approval |
| 09/28/2016 | WISCONSIN | Inland Sheboygan County, WI | 81 FR 66617 | Proposed Approval |
| 09/28/2016 | WISCONSIN | Shoreline Sheboygan County, WI | 81 FR 66617 | Proposed Approval |
| 12/14/2016 | TEXAS | Houston-Galveston-Brazoria, TX | 81 FR 90207 | Final Approval |
| 12/19/2016 | WISCONSIN | Inland Sheboygan County, WI | 81 FR 91841 | Final Approval |
| 12/19/2016 | WISCONSIN | Shoreline Sheboygan County, WI | 81 FR 91841 | Final Approval |
| 05/14/2018 | CALIFORNIA | Kern County (Eastern Kern), CA | 83 FR 22235 | Proposed Approval |
| 07/05/2018 | CALIFORNIA | Kern County (Eastern Kern), CA | 83 FR 31334 | Final Approval |
| 11/14/2018 | CALIFORNIA | Nevada County (Western part), CA | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | CALIFORNIA | San Diego County, CA | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | CONNECTICUT | Greater Connecticut, CT | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | INDIANA | Chicago-Naperville, IL-IN-WI | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | TEXAS | Dallas-Fort Worth, TX | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | TEXAS | Houston-Galveston-Brazoria, TX | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 83 FR 56781 | Proposed Approval |
| 02/14/2019 | CALIFORNIA | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA | 84 FR 4029 | Proposed Approval |
| 08/15/2019 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 84 FR 41674 | Proposed Approval |
| 08/23/2019 | CALIFORNIA | Nevada County (Western part), CA | 84 FR 44238 | Final Approval |
| 08/23/2019 | CALIFORNIA | San Diego County, CA | 84 FR 44238 | Final Approval |
| 08/23/2019 | CONNECTICUT | Greater Connecticut, CT | 84 FR 44238 | Final Approval |
| 08/23/2019 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 44238 | Final Approval |
| 08/23/2019 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 84 FR 44238 | Final Approval |
| 08/23/2019 | INDIANA | Chicago-Naperville, IL-IN-WI | 84 FR 44238 | Final Approval |
| 08/23/2019 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 44238 | Final Approval |
| 08/23/2019 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 44238 | Final Approval |
| 08/23/2019 | TEXAS | Dallas-Fort Worth, TX | 84 FR 44238 | Final Approval |
| 08/23/2019 | TEXAS | Houston-Galveston-Brazoria, TX | 84 FR 44238 | Final Approval |
| 08/23/2019 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 84 FR 44238 | Final Approval |
| 12/26/2019 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 84 FR 70897 | Final Approval |
| 02/05/2020 | WISCONSIN | Shoreline Sheboygan County, WI | 85 FR 6491 | Proposed Approval |
| 04/08/2021 | CALIFORNIA | San Diego County, CA | 86 FR 18227 | Proposed Approval |
| 06/02/2021 | CALIFORNIA | San Diego County, CA | 86 FR 29522 | Final Approval |
| 06/07/2021 | CALIFORNIA | Kern County (Eastern Kern), CA | 86 FR 30204 | Final Approval |
| 04/13/2022 | CALIFORNIA | Morongo Band of Mission Indians, CA | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | INDIANA | Chicago-Naperville, IL-IN-WI | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | TEXAS | Dallas-Fort Worth, TX | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | TEXAS | Houston-Galveston-Brazoria, TX | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 87 FR 21825 | Proposed Approval |
| 10/07/2022 | CALIFORNIA | Morongo Band of Mission Indians, CA | 87 FR 60926 | Final Approval |
| 10/07/2022 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 87 FR 60926 | Final Approval |
| 10/07/2022 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 60926 | Final Approval |
| 10/07/2022 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 60926 | Final Approval |
| 10/07/2022 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 60926 | Final Approval |
| 10/07/2022 | TEXAS | Dallas-Fort Worth, TX | 87 FR 60926 | Final Approval |
| 10/07/2022 | TEXAS | Houston-Galveston-Brazoria, TX | 87 FR 60926 | Final Approval |
| 01/11/2023 | CALIFORNIA | Riverside County (Coachella Valley), CA | 88 FR 1543 | Proposed Approval |
| 03/08/2023 | CALIFORNIA | Riverside County (Coachella Valley), CA | 88 FR 14291 | Final Approval |
| CLEAN DATA DETERMINATION/ATTAINMENT DETERMINATION | ||||
| 04/15/2014 | LOUISIANA | Baton Rouge, LA | 79 FR 21178 | Proposed Approval |
| 04/15/2014 | LOUISIANA | Baton Rouge, LA | 79 FR 21139 | Direct Final |
| 03/18/2015 | MARYLAND | Baltimore, MD | 80 FR 14041 | Proposed Approval |
| 06/01/2015 | MARYLAND | Baltimore, MD | 80 FR 30941 | Final Approval |
| 08/27/2015 | ARKANSAS | Memphis, TN-MS-AR | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | Calaveras County, CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | Chico (Butte County), CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | San Francisco Bay Area, CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | CALIFORNIA | Tuscan Buttes, CA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | DELAWARE | Seaford, DE | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | INDIANA | Cincinnati, OH-KY-IN | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | KENTUCKY | Cincinnati, OH-KY-IN | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | LOUISIANA | Baton Rouge, LA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | MASSACHUSETTS | Dukes County, MA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | MISSISSIPPI | Memphis, TN-MS-AR | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | NEW YORK | Jamestown, NY | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | NORTH CAROLINA | Charlotte-Rock Hill, NC-SC | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | OHIO | Cincinnati, OH-KY-IN | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | OHIO | Columbus, OH | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | PENNSYLVANIA | Allentown-Bethlehem-Easton, PA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | PENNSYLVANIA | Lancaster, PA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | PENNSYLVANIA | Reading, PA | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | SOUTH CAROLINA | Charlotte-Rock Hill, NC-SC | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | TENNESSEE | Knoxville, TN | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | TENNESSEE | Memphis, TN-MS-AR | 80 FR 51992 | Proposed Approval |
| 08/27/2015 | WYOMING | Upper Green River Basin Area, WY | 80 FR 51992 | Proposed Approval |
| 05/03/2016 | GEORGIA | Atlanta, GA | 81 FR 26515 | Proposed Approval |
| 05/04/2016 | ARKANSAS | Memphis, TN-MS-AR | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | Calaveras County, CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | Chico (Butte County), CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | San Francisco Bay Area, CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | CALIFORNIA | Tuscan Buttes, CA | 81 FR 26697 | Final Approval |
| 05/04/2016 | DELAWARE | Seaford, DE | 81 FR 26697 | Final Approval |
| 05/04/2016 | INDIANA | Cincinnati, OH-KY-IN | 81 FR 26697 | Final Approval |
| 05/04/2016 | KENTUCKY | Cincinnati, OH-KY-IN | 81 FR 26697 | Final Approval |
| 05/04/2016 | LOUISIANA | Baton Rouge, LA | 81 FR 26697 | Final Approval |
| 05/04/2016 | MASSACHUSETTS | Dukes County, MA | 81 FR 26697 | Final Approval |
| 05/04/2016 | MISSISSIPPI | Memphis, TN-MS-AR | 81 FR 26697 | Final Approval |
| 05/04/2016 | NEW YORK | Jamestown, NY | 81 FR 26697 | Final Approval |
| 05/04/2016 | NORTH CAROLINA | Charlotte-Rock Hill, NC-SC | 81 FR 26697 | Final Approval |
| 05/04/2016 | OHIO | Cincinnati, OH-KY-IN | 81 FR 26697 | Final Approval |
| 05/04/2016 | OHIO | Columbus, OH | 81 FR 26697 | Final Approval |
| 05/04/2016 | PENNSYLVANIA | Allentown-Bethlehem-Easton, PA | 81 FR 26697 | Final Approval |
| 05/04/2016 | PENNSYLVANIA | Lancaster, PA | 81 FR 26697 | Final Approval |
| 05/04/2016 | PENNSYLVANIA | Reading, PA | 81 FR 26697 | Final Approval |
| 05/04/2016 | SOUTH CAROLINA | Charlotte-Rock Hill, NC-SC | 81 FR 26697 | Final Approval |
| 05/04/2016 | TENNESSEE | Knoxville, TN | 81 FR 26697 | Final Approval |
| 05/04/2016 | TENNESSEE | Memphis, TN-MS-AR | 81 FR 26697 | Final Approval |
| 05/04/2016 | WYOMING | Upper Green River Basin Area, WY | 81 FR 26697 | Final Approval |
| 06/27/2016 | ILLINOIS | St. Louis-St. Charles-Farmington, MO-IL | 81 FR 41497 | Proposed Approval |
| 06/27/2016 | MISSOURI | St. Louis-St. Charles-Farmington, MO-IL | 81 FR 41497 | Proposed Approval |
| 06/27/2016 | OHIO | Cleveland-Akron-Lorain, OH | 81 FR 41497 | Proposed Approval |
| 06/27/2016 | ILLINOIS | St. Louis-St. Charles-Farmington, MO-IL | 81 FR 41444 | Direct Final |
| 06/27/2016 | MISSOURI | St. Louis-St. Charles-Farmington, MO-IL | 81 FR 41444 | Direct Final |
| 06/27/2016 | OHIO | Cleveland-Akron-Lorain, OH | 81 FR 41444 | Direct Final |
| 07/14/2016 | GEORGIA | Atlanta, GA | 81 FR 45419 | Final Approval |
| 08/25/2016 | PENNSYLVANIA | Pittsburgh-Beaver Valley, PA | 81 FR 58435 | Proposed Approval |
| 10/12/2016 | CALIFORNIA | San Luis Obispo (Eastern San Luis Obispo), CA | 81 FR 70382 | Proposed Approval |
| 12/06/2016 | PENNSYLVANIA | Pittsburgh-Beaver Valley, PA | 81 FR 87819 | Final Approval |
| 12/21/2016 | CALIFORNIA | Mariposa County, CA | 81 FR 93653 | Proposed Approval |
| 12/21/2016 | CALIFORNIA | Mariposa County, CA | 81 FR 93624 | Direct Final |
| 12/21/2016 | CALIFORNIA | San Luis Obispo (Eastern San Luis Obispo), CA | 81 FR 93620 | Final Approval |
| 04/18/2017 | DELAWARE | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 82 FR 18268 | Proposed Approval |
| 04/18/2017 | MARYLAND | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 82 FR 18268 | Proposed Approval |
| 04/18/2017 | NEW JERSEY | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 82 FR 18268 | Proposed Approval |
| 04/18/2017 | PENNSYLVANIA | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 82 FR 18268 | Proposed Approval |
| 04/25/2017 | DISTRICT OF COL | Washington, DC-MD-VA | 82 FR 19011 | Proposed Approval |
| 04/25/2017 | MARYLAND | Washington, DC-MD-VA | 82 FR 19011 | Proposed Approval |
| 04/25/2017 | VIRGINIA | Washington, DC-MD-VA | 82 FR 19011 | Proposed Approval |
| 11/02/2017 | DELAWARE | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 82 FR 50814 | Final Approval |
| 11/02/2017 | MARYLAND | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 82 FR 50814 | Final Approval |
| 11/02/2017 | NEW JERSEY | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 82 FR 50814 | Final Approval |
| 11/02/2017 | PENNSYLVANIA | Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE | 82 FR 50814 | Final Approval |
| 11/14/2017 | DISTRICT OF COL | Washington, DC-MD-VA | 82 FR 52651 | Final Approval |
| 11/14/2017 | MARYLAND | Washington, DC-MD-VA | 82 FR 52651 | Final Approval |
| 11/14/2017 | VIRGINIA | Washington, DC-MD-VA | 82 FR 52651 | Final Approval |
| 07/20/2018 | NEW YORK | Jamestown, NY | 83 FR 34506 | Proposed Approval |
| 10/02/2018 | NEW YORK | Jamestown, NY | 83 FR 49492 | Final Approval |
| 11/14/2018 | CALIFORNIA | Mariposa County, CA | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | MARYLAND | Baltimore, MD | 83 FR 56781 | Proposed Approval |
| 02/15/2019 | WISCONSIN | Inland Sheboygan County, WI | 84 FR 4422 | Proposed Approval |
| 06/13/2019 | ARIZONA | Phoenix-Mesa, AZ | 84 FR 27566 | Proposed Approval |
| 07/15/2019 | WISCONSIN | Inland Sheboygan County, WI | 84 FR 33699 | Final Approval |
| 08/23/2019 | CALIFORNIA | Mariposa County, CA | 84 FR 44238 | Final Approval |
| 08/23/2019 | MARYLAND | Baltimore, MD | 84 FR 44238 | Final Approval |
| 11/12/2019 | ARIZONA | Phoenix-Mesa, AZ | 84 FR 60920 | Final Approval |
| 02/05/2020 | WISCONSIN | Inland Sheboygan County, WI | 85 FR 6491 | Proposed Approval |
| 03/27/2020 | CONNECTICUT | Greater Connecticut, CT | 85 FR 17301 | Proposed Approval |
| 07/13/2020 | CONNECTICUT | Greater Connecticut, CT | 85 FR 41924 | Final Approval |
| 04/13/2022 | CONNECTICUT | Greater Connecticut, CT | 87 FR 21825 | Proposed Approval |
| 07/14/2022 | CALIFORNIA | Nevada County (Western part), CA | 87 FR 42126 | Proposed Approval |
| 07/14/2022 | CALIFORNIA | Ventura County, CA | 87 FR 42126 | Proposed Approval |
| 10/07/2022 | CONNECTICUT | Greater Connecticut, CT | 87 FR 60926 | Final Approval |
| 10/20/2022 | CALIFORNIA | Nevada County (Western part), CA | 87 FR 63698 | Final Approval |
| 10/20/2022 | CALIFORNIA | Ventura County, CA | 87 FR 63698 | Final Approval |
| 03/21/2025 | CALIFORNIA | Sacramento Metro, CA | 90 FR 13316 | Proposed Approval |
| 08/21/2025 | CALIFORNIA | Sacramento Metro, CA | 90 FR 40741 | Final Approval |
| CORRECTION/CLARIFICATION | ||||
| 01/11/2017 | TEXAS | Houston-Galveston-Brazoria, TX | 82 FR 3172 | Final Approval |
| 04/06/2017 | WISCONSIN | Inland Sheboygan County, WI | 81 FR 16740 | Final Approval |
| 04/06/2017 | WISCONSIN | Shoreline Sheboygan County, WI | 81 FR 16740 | Final Approval |
| 04/20/2020 | CONNECTICUT | Greater Connecticut, CT | 85 FR 21796 | Proposed Approval |
| EXTENSION OF COMMENT PERIOD | ||||
| 02/08/2019 | CALIFORNIA | Mariposa County, CA | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | CALIFORNIA | Nevada County (Western part), CA | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | CALIFORNIA | San Diego County, CA | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | CONNECTICUT | Greater Connecticut, CT | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | INDIANA | Chicago-Naperville, IL-IN-WI | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | MARYLAND | Baltimore, MD | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | TEXAS | Dallas-Fort Worth, TX | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | TEXAS | Houston-Galveston-Brazoria, TX | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | WISCONSIN | Inland Sheboygan County, WI | 84 FR 2858 | Reopening of Public Comment Period |
| 02/08/2019 | WISCONSIN | Shoreline Sheboygan County, WI | 84 FR 2858 | Reopening of Public Comment Period |
| 05/07/2019 | MARYLAND | Baltimore, MD | 84 FR 19893 | Reopening of Public Comment Period |
| FAILURE TO ATTAIN BY ATTAINMENT DATE | ||||
| 09/27/2016 | TEXAS | Houston-Galveston-Brazoria, TX | 81 FR 66240 | Proposed Approval |
| 09/28/2016 | WISCONSIN | Inland Sheboygan County, WI | 81 FR 66617 | Proposed Approval |
| 09/28/2016 | WISCONSIN | Shoreline Sheboygan County, WI | 81 FR 66617 | Proposed Approval |
| 12/14/2016 | TEXAS | Houston-Galveston-Brazoria, TX | 81 FR 90207 | Final Approval |
| 12/19/2016 | WISCONSIN | Inland Sheboygan County, WI | 81 FR 91841 | Final Approval |
| 12/19/2016 | WISCONSIN | Shoreline Sheboygan County, WI | 81 FR 91841 | Final Approval |
| 11/14/2018 | CALIFORNIA | Nevada County (Western part), CA | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | CALIFORNIA | San Diego County, CA | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | CONNECTICUT | Greater Connecticut, CT | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | INDIANA | Chicago-Naperville, IL-IN-WI | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | TEXAS | Dallas-Fort Worth, TX | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | TEXAS | Houston-Galveston-Brazoria, TX | 83 FR 56781 | Proposed Approval |
| 11/14/2018 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 83 FR 56781 | Proposed Approval |
| 02/14/2019 | CALIFORNIA | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA | 84 FR 4029 | Proposed Approval |
| 08/15/2019 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 84 FR 41674 | Proposed Approval |
| 08/23/2019 | CALIFORNIA | Nevada County (Western part), CA | 84 FR 44238 | Final Approval |
| 08/23/2019 | CALIFORNIA | San Diego County, CA | 84 FR 44238 | Final Approval |
| 08/23/2019 | CONNECTICUT | Greater Connecticut, CT | 84 FR 44238 | Final Approval |
| 08/23/2019 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 44238 | Final Approval |
| 08/23/2019 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 84 FR 44238 | Final Approval |
| 08/23/2019 | INDIANA | Chicago-Naperville, IL-IN-WI | 84 FR 44238 | Final Approval |
| 08/23/2019 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 44238 | Final Approval |
| 08/23/2019 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 84 FR 44238 | Final Approval |
| 08/23/2019 | TEXAS | Dallas-Fort Worth, TX | 84 FR 44238 | Final Approval |
| 08/23/2019 | TEXAS | Houston-Galveston-Brazoria, TX | 84 FR 44238 | Final Approval |
| 08/23/2019 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 84 FR 44238 | Final Approval |
| 12/26/2019 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 84 FR 70897 | Final Approval |
| 02/05/2020 | WISCONSIN | Shoreline Sheboygan County, WI | 85 FR 6491 | Proposed Approval |
| 04/13/2022 | CALIFORNIA | Morongo Band of Mission Indians, CA | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | INDIANA | Chicago-Naperville, IL-IN-WI | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | TEXAS | Dallas-Fort Worth, TX | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | TEXAS | Houston-Galveston-Brazoria, TX | 87 FR 21825 | Proposed Approval |
| 04/13/2022 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 87 FR 21825 | Proposed Approval |
| 10/07/2022 | CALIFORNIA | Morongo Band of Mission Indians, CA | 87 FR 60926 | Final Approval |
| 10/07/2022 | COLORADO | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO | 87 FR 60926 | Final Approval |
| 10/07/2022 | CONNECTICUT | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 60926 | Final Approval |
| 10/07/2022 | NEW JERSEY | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 60926 | Final Approval |
| 10/07/2022 | NEW YORK | New York-N. New Jersey-Long Island, NY-NJ-CT | 87 FR 60926 | Final Approval |
| 10/07/2022 | TEXAS | Dallas-Fort Worth, TX | 87 FR 60926 | Final Approval |
| 10/07/2022 | TEXAS | Houston-Galveston-Brazoria, TX | 87 FR 60926 | Final Approval |
| REDESIGNATION TO MAINTENANCE | ||||
| 12/10/2014 | INDIANA | Chicago-Naperville, IL-IN-WI | 79 FR 73205 | Final Disapproval |
| 05/21/2015 | NORTH CAROLINA | Charlotte-Rock Hill, NC-SC | 80 FR 29250 | Proposed Approval |
| 05/21/2015 | TENNESSEE | Knoxville, TN | 80 FR 29237 | Proposed Approval |
| 07/13/2015 | TENNESSEE | Knoxville, TN | 80 FR 39970 | Final Approval |
| 07/28/2015 | NORTH CAROLINA | Charlotte-Rock Hill, NC-SC | 80 FR 44873 | Final Approval |
| 10/14/2015 | SOUTH CAROLINA | Charlotte-Rock Hill, NC-SC | 80 FR 61775 | Proposed Approval |
| 12/11/2015 | SOUTH CAROLINA | Charlotte-Rock Hill, NC-SC | 80 FR 76865 | Final Approval |
| 02/10/2016 | ARKANSAS | Memphis, TN-MS-AR | 81 FR 7046 | Proposed Approval |
| 02/11/2016 | MISSISSIPPI | Memphis, TN-MS-AR | 81 FR 7269 | Proposed Approval |
| 04/08/2016 | MISSISSIPPI | Memphis, TN-MS-AR | 81 FR 20543 | Final Approval |
| 04/19/2016 | TENNESSEE | Memphis, TN-MS-AR | 81 FR 22948 | Proposed Approval |
| 04/25/2016 | ARKANSAS | Memphis, TN-MS-AR | 81 FR 24030 | Final Approval |
| 06/23/2016 | TENNESSEE | Memphis, TN-MS-AR | 81 FR 40816 | Final Approval |
| 09/28/2016 | OHIO | Cincinnati, OH-KY-IN | 81 FR 66602 | Proposed Approval |
| 09/28/2016 | OHIO | Columbus, OH | 81 FR 66578 | Proposed Approval |
| 10/17/2016 | OHIO | Cleveland-Akron-Lorain, OH | 81 FR 71444 | Proposed Approval |
| 11/04/2016 | LOUISIANA | Baton Rouge, LA | 81 FR 76891 | Proposed Approval |
| 12/16/2016 | OHIO | Cincinnati, OH-KY-IN | 81 FR 91035 | Final Approval |
| 12/21/2016 | OHIO | Columbus, OH | 81 FR 93631 | Final Approval |
| 12/23/2016 | GEORGIA | Atlanta, GA | 81 FR 94283 | Proposed Approval |
| 12/27/2016 | INDIANA | Cincinnati, OH-KY-IN | 81 FR 95081 | Proposed Approval |
| 12/27/2016 | LOUISIANA | Baton Rouge, LA | 81 FR 95051 | Final Approval |
| 01/06/2017 | OHIO | Cleveland-Akron-Lorain, OH | 82 FR 1603 | Final Approval |
| 01/26/2017 | LOUISIANA | Baton Rouge, LA | 82 FR 8499 | Effective Date Delay to March 21, 2017 |
| 04/07/2017 | INDIANA | Cincinnati, OH-KY-IN | 82 FR 16940 | Final Approval |
| 05/01/2017 | KENTUCKY | Cincinnati, OH-KY-IN | 82 FR 20297 | Proposed Approval |
| 06/02/2017 | GEORGIA | Atlanta, GA | 82 FR 25523 | Final Approval |
| 07/05/2017 | KENTUCKY | Cincinnati, OH-KY-IN | 82 FR 30976 | Final Approval |
| 12/08/2017 | ILLINOIS | St. Louis-St. Charles-Farmington, MO-IL | 82 FR 57892 | Proposed Approval |
| 03/01/2018 | ILLINOIS | St. Louis-St. Charles-Farmington, MO-IL | 83 FR 8756 | Final Approval |
| 06/25/2018 | MISSOURI | St. Louis-St. Charles-Farmington, MO-IL | 83 FR 29486 | Proposed Approval |
| 08/08/2018 | MARYLAND | Washington, DC-MD-VA | 83 FR 39019 | Proposed Approval |
| 08/08/2018 | VIRGINIA | Washington, DC-MD-VA | 83 FR 39019 | Proposed Approval |
| 09/20/2018 | MISSOURI | St. Louis-St. Charles-Farmington, MO-IL | 83 FR 47572 | Final Approval |
| 02/15/2019 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 84 FR 4426 | Proposed Disapproval |
| 04/15/2019 | MARYLAND | Washington, DC-MD-VA | 84 FR 15108 | Final Approval |
| 04/15/2019 | VIRGINIA | Washington, DC-MD-VA | 84 FR 15108 | Final Approval |
| 04/18/2019 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 84 FR 16214 | Final Disapproval |
| 05/21/2019 | DISTRICT OF COL | Washington, DC-MD-VA | 84 FR 22996 | Proposed Approval |
| 07/16/2019 | DISTRICT OF COL | Washington, DC-MD-VA | 84 FR 33855 | Final Approval |
| 04/17/2020 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 85 FR 21351 | Proposed Approval |
| 04/20/2020 | INDIANA | Chicago-Naperville, IL-IN-WI | 85 FR 21797 | Proposed Approval |
| 04/27/2020 | WISCONSIN | Inland Sheboygan County, WI | 85 FR 23274 | Proposed Approval |
| 05/13/2020 | WISCONSIN | Shoreline Sheboygan County, WI | 85 FR 28550 | Proposed Approval |
| 07/10/2020 | WISCONSIN | Inland Sheboygan County, WI | 85 FR 41400 | Final Approval |
| 07/10/2020 | WISCONSIN | Shoreline Sheboygan County, WI | 85 FR 41405 | Final Approval |
| 02/07/2022 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 87 FR 6806 | Proposed Approval |
| 03/03/2022 | INDIANA | Chicago-Naperville, IL-IN-WI | 87 FR 12033 | Proposed Approval |
| 03/10/2022 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 87 FR 13668 | Proposed Approval |
| 04/11/2022 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 87 FR 21027 | Final Approval |
| 05/20/2022 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 87 FR 30828 | Final Approval |
| 05/20/2022 | INDIANA | Chicago-Naperville, IL-IN-WI | 87 FR 30821 | Final Approval |
| TECHNICAL AMENDMENT | ||||
| 05/05/2014 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 79 FR 25555 | Proposed Approval |
| 05/05/2014 | INDIANA | Chicago-Naperville, IL-IN-WI | 79 FR 25555 | Proposed Approval |
| 05/05/2014 | NORTH CAROLINA | Charlotte-Rock Hill, NC-SC | 79 FR 25555 | Proposed Approval |
| 05/05/2014 | SOUTH CAROLINA | Charlotte-Rock Hill, NC-SC | 79 FR 25555 | Proposed Approval |
| 05/05/2014 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 79 FR 25555 | Proposed Approval |
| 05/05/2014 | ILLINOIS | Chicago-Naperville, IL-IN-WI | 79 FR 25508 | Direct Final |
| 05/05/2014 | INDIANA | Chicago-Naperville, IL-IN-WI | 79 FR 25508 | Direct Final |
| 05/05/2014 | NORTH CAROLINA | Charlotte-Rock Hill, NC-SC | 79 FR 25508 | Direct Final |
| 05/05/2014 | SOUTH CAROLINA | Charlotte-Rock Hill, NC-SC | 79 FR 25508 | Direct Final |
| 05/05/2014 | WISCONSIN | Chicago-Naperville, IL-IN-WI | 79 FR 25508 | Direct Final |