Federal Register Notices Related to 8-Hour Ozone (2008) Designations and Classifications

Data is current as of November 30, 2025
Ordered by State, Area Name

Click on the 'FR' link to view the Federal Register Notice

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ARIZONA
PHOENIX-MESA, AZ
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
06/13/2019		84 FR 27566	Proposed Approval	Clean Data Determination/Attainment Determination
11/12/2019		84 FR 60920	Final Approval	Clean Data Determination/Attainment Determination
ARKANSAS
MEMPHIS, TN-MS-AR
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
02/10/2016		81 FR 7046	Proposed Approval	Redesignation to Maintenance
04/25/2016		81 FR 24030	Final Approval	Redesignation to Maintenance
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
CALIFORNIA
CALAVERAS COUNTY, CA
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
CHICO (BUTTE COUNTY), CA
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
IMPERIAL COUNTY, CA
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/01/2019		84 FR 58641	Proposed Approval	179B Determination
02/27/2020		85 FR 11817	Final Approval	179B Determination
KERN COUNTY (EASTERN KERN), CA
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
05/14/2018		83 FR 22235	Proposed Approval	Change to a Higher Classification (Bump-Ups)
07/05/2018		83 FR 31334	Final Approval	Change to a Higher Classification (Bump-Ups)
06/07/2021		86 FR 30204	Final Approval	Change to a Higher Classification (Bump-Ups)
MARIPOSA COUNTY, CA
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
12/21/2016		81 FR 93653	Proposed Approval	Clean Data Determination/Attainment Determination
12/21/2016		81 FR 93624	Direct Final	Clean Data Determination/Attainment Determination
11/14/2018		83 FR 56781	Proposed Approval	Clean Data Determination/Attainment Determination
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Clean Data Determination/Attainment Determination
MORONGO BAND OF MISSION INDIANS, CA
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022		87 FR 60926	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022		87 FR 60926	Final Approval	Failure to Attain by Attainment Date
NEVADA COUNTY (WESTERN PART), CA
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
07/14/2022		87 FR 42126	Proposed Approval	Clean Data Determination/Attainment Determination
10/20/2022		87 FR 63698	Final Approval	Clean Data Determination/Attainment Determination
PECHANGA BAND OF LUISENO MISSION INDIANS OF THE PECHANGA RESERVATION, CA
02/14/2019		84 FR 4029	Proposed Approval	Change to a Higher Classification (Bump-Ups)
02/14/2019		84 FR 4029	Proposed Approval	Failure to Attain by Attainment Date
RIVERSIDE COUNTY (COACHELLA VALLEY), CA
01/11/2023		88 FR 1543	Proposed Approval	Change to a Higher Classification (Bump-Ups)
03/08/2023		88 FR 14291	Final Approval	Change to a Higher Classification (Bump-Ups)
SACRAMENTO METRO, CA
03/21/2025		90 FR 13316	Proposed Approval	Clean Data Determination/Attainment Determination
08/21/2025		90 FR 40741	Final Approval	Clean Data Determination/Attainment Determination
SAN DIEGO COUNTY, CA
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
04/08/2021		86 FR 18227	Proposed Approval	Change to a Higher Classification (Bump-Ups)
06/02/2021		86 FR 29522	Final Approval	Change to a Higher Classification (Bump-Ups)
SAN FRANCISCO BAY AREA, CA
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
SAN LUIS OBISPO (EASTERN SAN LUIS OBISPO), CA
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
10/12/2016		81 FR 70382	Proposed Approval	Clean Data Determination/Attainment Determination
12/21/2016		81 FR 93620	Final Approval	Clean Data Determination/Attainment Determination
TUSCAN BUTTES, CA
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
VENTURA COUNTY, CA
07/14/2022		87 FR 42126	Proposed Approval	Clean Data Determination/Attainment Determination
10/20/2022		87 FR 63698	Final Approval	Clean Data Determination/Attainment Determination
COLORADO
DENVER-BOULDER-GREELEY-FT. COLLINS-LOVELAND, CO
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Attainment Date Extension
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/15/2019		84 FR 41674	Proposed Approval	Change to a Higher Classification (Bump-Ups)
08/15/2019		84 FR 41674	Proposed Approval	Failure to Attain by Attainment Date
12/26/2019		84 FR 70897	Final Approval	Change to a Higher Classification (Bump-Ups)
12/26/2019		84 FR 70897	Final Approval	Failure to Attain by Attainment Date
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022		87 FR 60926	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022		87 FR 60926	Final Approval	Failure to Attain by Attainment Date
CONNECTICUT
GREATER CONNECTICUT, CT
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
03/27/2020		85 FR 17301	Proposed Approval	Clean Data Determination/Attainment Determination
04/20/2020		85 FR 21796	Proposed Approval	Correction/Clarification
07/13/2020		85 FR 41924	Final Approval	Clean Data Determination/Attainment Determination
04/13/2022		87 FR 21825	Proposed Approval	Clean Data Determination/Attainment Determination
10/07/2022		87 FR 60926	Final Approval	Clean Data Determination/Attainment Determination
NEW YORK-N. NEW JERSEY-LONG ISLAND, NY-NJ-CT
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022		87 FR 60926	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022		87 FR 60926	Final Approval	Failure to Attain by Attainment Date
DELAWARE
PHILADELPHIA-WILMINGTON-ATLANTIC CITY, PA-NJ-MD-DE
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
04/18/2017		82 FR 18268	Proposed Approval	Clean Data Determination/Attainment Determination
11/02/2017		82 FR 50814	Final Approval	Clean Data Determination/Attainment Determination
SEAFORD, DE
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
DISTRICT OF COLUMBIA
WASHINGTON, DC-MD-VA
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
04/25/2017		82 FR 19011	Proposed Approval	Clean Data Determination/Attainment Determination
11/14/2017		82 FR 52651	Final Approval	Clean Data Determination/Attainment Determination
05/21/2019		84 FR 22996	Proposed Approval	Redesignation to Maintenance
07/16/2019		84 FR 33855	Final Approval	Redesignation to Maintenance
GEORGIA
ATLANTA, GA
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/03/2016		81 FR 26515	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
07/14/2016		81 FR 45419	Final Approval	Clean Data Determination/Attainment Determination
12/23/2016		81 FR 94283	Proposed Approval	Redesignation to Maintenance
06/02/2017		82 FR 25523	Final Approval	Redesignation to Maintenance
ILLINOIS
CHICAGO-NAPERVILLE, IL-IN-WI
05/05/2014		79 FR 25555	Proposed Approval	Technical Amendment
05/05/2014		79 FR 25508	Direct Final	Technical Amendment
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
03/10/2022		87 FR 13668	Proposed Approval	Redesignation to Maintenance
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
05/20/2022		87 FR 30828	Final Approval	Redesignation to Maintenance
ST. LOUIS-ST. CHARLES-FARMINGTON, MO-IL
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
06/27/2016		81 FR 41497	Proposed Approval	Clean Data Determination/Attainment Determination
06/27/2016		81 FR 41444	Direct Final	Clean Data Determination/Attainment Determination
12/08/2017		82 FR 57892	Proposed Approval	Redesignation to Maintenance
03/01/2018		83 FR 8756	Final Approval	Redesignation to Maintenance
INDIANA
CHICAGO-NAPERVILLE, IL-IN-WI
05/05/2014		79 FR 25555	Proposed Approval	Technical Amendment
05/05/2014		79 FR 25508	Direct Final	Technical Amendment
12/10/2014		79 FR 73205	Final Disapproval	Redesignation to Maintenance
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
04/20/2020		85 FR 21797	Proposed Approval	Redesignation to Maintenance
03/03/2022		87 FR 12033	Proposed Approval	Redesignation to Maintenance
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
05/20/2022		87 FR 30821	Final Approval	Redesignation to Maintenance
CINCINNATI, OH-KY-IN
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
12/27/2016		81 FR 95081	Proposed Approval	Redesignation to Maintenance
04/07/2017		82 FR 16940	Final Approval	Redesignation to Maintenance
KENTUCKY
CINCINNATI, OH-KY-IN
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
05/01/2017		82 FR 20297	Proposed Approval	Redesignation to Maintenance
07/05/2017		82 FR 30976	Final Approval	Redesignation to Maintenance
LOUISIANA
BATON ROUGE, LA
04/15/2014		79 FR 21178	Proposed Approval	Clean Data Determination/Attainment Determination
04/15/2014		79 FR 21139	Direct Final	Clean Data Determination/Attainment Determination
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
11/04/2016		81 FR 76891	Proposed Approval	Redesignation to Maintenance
12/27/2016		81 FR 95051	Final Approval	Redesignation to Maintenance
01/26/2017		82 FR 8499	Effective Date Delay to March 21, 2017	Redesignation to Maintenance
MARYLAND
BALTIMORE, MD
03/18/2015		80 FR 14041	Proposed Approval	Clean Data Determination/Attainment Determination
06/01/2015		80 FR 30941	Final Approval	Clean Data Determination/Attainment Determination
11/14/2018		83 FR 56781	Proposed Approval	Clean Data Determination/Attainment Determination
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
05/07/2019		84 FR 19893	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Clean Data Determination/Attainment Determination
PHILADELPHIA-WILMINGTON-ATLANTIC CITY, PA-NJ-MD-DE
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
04/18/2017		82 FR 18268	Proposed Approval	Clean Data Determination/Attainment Determination
11/02/2017		82 FR 50814	Final Approval	Clean Data Determination/Attainment Determination
WASHINGTON, DC-MD-VA
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
04/25/2017		82 FR 19011	Proposed Approval	Clean Data Determination/Attainment Determination
11/14/2017		82 FR 52651	Final Approval	Clean Data Determination/Attainment Determination
08/08/2018		83 FR 39019	Proposed Approval	Redesignation to Maintenance
04/15/2019		84 FR 15108	Final Approval	Redesignation to Maintenance
MASSACHUSETTS
DUKES COUNTY, MA
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
MISSISSIPPI
MEMPHIS, TN-MS-AR
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
02/11/2016		81 FR 7269	Proposed Approval	Redesignation to Maintenance
04/08/2016		81 FR 20543	Final Approval	Redesignation to Maintenance
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
MISSOURI
ST. LOUIS-ST. CHARLES-FARMINGTON, MO-IL
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
06/27/2016		81 FR 41497	Proposed Approval	Clean Data Determination/Attainment Determination
06/27/2016		81 FR 41444	Direct Final	Clean Data Determination/Attainment Determination
06/25/2018		83 FR 29486	Proposed Approval	Redesignation to Maintenance
09/20/2018		83 FR 47572	Final Approval	Redesignation to Maintenance
NEW JERSEY
NEW YORK-N. NEW JERSEY-LONG ISLAND, NY-NJ-CT
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022		87 FR 60926	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022		87 FR 60926	Final Approval	Failure to Attain by Attainment Date
PHILADELPHIA-WILMINGTON-ATLANTIC CITY, PA-NJ-MD-DE
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
04/18/2017		82 FR 18268	Proposed Approval	Clean Data Determination/Attainment Determination
11/02/2017		82 FR 50814	Final Approval	Clean Data Determination/Attainment Determination
NEW YORK
JAMESTOWN, NY
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
07/20/2018		83 FR 34506	Proposed Approval	Clean Data Determination/Attainment Determination
10/02/2018		83 FR 49492	Final Approval	Clean Data Determination/Attainment Determination
NEW YORK-N. NEW JERSEY-LONG ISLAND, NY-NJ-CT
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022		87 FR 60926	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022		87 FR 60926	Final Approval	Failure to Attain by Attainment Date
NORTH CAROLINA
CHARLOTTE-ROCK HILL, NC-SC
05/05/2014		79 FR 25555	Proposed Approval	Technical Amendment
05/05/2014		79 FR 25508	Direct Final	Technical Amendment
05/21/2015		80 FR 29250	Proposed Approval	Redesignation to Maintenance
07/28/2015		80 FR 44873	Final Approval	Redesignation to Maintenance
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
OHIO
CINCINNATI, OH-KY-IN
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
09/28/2016		81 FR 66602	Proposed Approval	Redesignation to Maintenance
12/16/2016		81 FR 91035	Final Approval	Redesignation to Maintenance
CLEVELAND-AKRON-LORAIN, OH
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
06/27/2016		81 FR 41497	Proposed Approval	Clean Data Determination/Attainment Determination
06/27/2016		81 FR 41444	Direct Final	Clean Data Determination/Attainment Determination
10/17/2016		81 FR 71444	Proposed Approval	Redesignation to Maintenance
01/06/2017		82 FR 1603	Final Approval	Redesignation to Maintenance
COLUMBUS, OH
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
09/28/2016		81 FR 66578	Proposed Approval	Redesignation to Maintenance
12/21/2016		81 FR 93631	Final Approval	Redesignation to Maintenance
PENNSYLVANIA
ALLENTOWN-BETHLEHEM-EASTON, PA
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
LANCASTER, PA
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
PHILADELPHIA-WILMINGTON-ATLANTIC CITY, PA-NJ-MD-DE
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
04/18/2017		82 FR 18268	Proposed Approval	Clean Data Determination/Attainment Determination
11/02/2017		82 FR 50814	Final Approval	Clean Data Determination/Attainment Determination
PITTSBURGH-BEAVER VALLEY, PA
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
08/25/2016		81 FR 58435	Proposed Approval	Clean Data Determination/Attainment Determination
12/06/2016		81 FR 87819	Final Approval	Clean Data Determination/Attainment Determination
READING, PA
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
SOUTH CAROLINA
CHARLOTTE-ROCK HILL, NC-SC
05/05/2014		79 FR 25555	Proposed Approval	Technical Amendment
05/05/2014		79 FR 25508	Direct Final	Technical Amendment
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
10/14/2015		80 FR 61775	Proposed Approval	Redesignation to Maintenance
12/11/2015		80 FR 76865	Final Approval	Redesignation to Maintenance
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
TENNESSEE
KNOXVILLE, TN
05/21/2015		80 FR 29237	Proposed Approval	Redesignation to Maintenance
07/13/2015		80 FR 39970	Final Approval	Redesignation to Maintenance
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
MEMPHIS, TN-MS-AR
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
04/19/2016		81 FR 22948	Proposed Approval	Redesignation to Maintenance
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination
06/23/2016		81 FR 40816	Final Approval	Redesignation to Maintenance
TEXAS
DALLAS-FORT WORTH, TX
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022		87 FR 60926	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022		87 FR 60926	Final Approval	Failure to Attain by Attainment Date
HOUSTON-GALVESTON-BRAZORIA, TX
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
09/27/2016		81 FR 66240	Proposed Approval	Change to a Higher Classification (Bump-Ups)
09/27/2016		81 FR 66240	Proposed Approval	Failure to Attain by Attainment Date
12/14/2016		81 FR 90207	Final Approval	Change to a Higher Classification (Bump-Ups)
12/14/2016		81 FR 90207	Final Approval	Failure to Attain by Attainment Date
01/11/2017		82 FR 3172	Final Approval	Correction/Clarification
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
04/13/2022		87 FR 21825	Proposed Approval	Attainment Date Extension Denied
10/07/2022		87 FR 60926	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022		87 FR 60926	Final Approval	Failure to Attain by Attainment Date
10/07/2022		87 FR 60926	Final Approval	Attainment Date Extension Denied
VIRGINIA
WASHINGTON, DC-MD-VA
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
04/25/2017		82 FR 19011	Proposed Approval	Clean Data Determination/Attainment Determination
11/14/2017		82 FR 52651	Final Approval	Clean Data Determination/Attainment Determination
08/08/2018		83 FR 39019	Proposed Approval	Redesignation to Maintenance
04/15/2019		84 FR 15108	Final Approval	Redesignation to Maintenance
WISCONSIN
CHICAGO-NAPERVILLE, IL-IN-WI
05/05/2014		79 FR 25555	Proposed Approval	Technical Amendment
05/05/2014		79 FR 25508	Direct Final	Technical Amendment
08/27/2015		80 FR 51992	Proposed Approval	Change to a Higher Classification (Bump-Ups)
05/04/2016		81 FR 26697	Final Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/14/2018		83 FR 56781	Proposed Approval	Failure to Attain by Attainment Date
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
02/15/2019		84 FR 4426	Proposed Disapproval	Redesignation to Maintenance
04/18/2019		84 FR 16214	Final Disapproval	Redesignation to Maintenance
08/23/2019		84 FR 44238	Final Approval	Change to a Higher Classification (Bump-Ups)
08/23/2019		84 FR 44238	Final Approval	Failure to Attain by Attainment Date
04/17/2020		85 FR 21351	Proposed Approval	Redesignation to Maintenance
02/07/2022		87 FR 6806	Proposed Approval	Redesignation to Maintenance
04/11/2022		87 FR 21027	Final Approval	Redesignation to Maintenance
04/13/2022		87 FR 21825	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022		87 FR 21825	Proposed Approval	Failure to Attain by Attainment Date
INLAND SHEBOYGAN COUNTY, WI
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
09/28/2016		81 FR 66617	Proposed Approval	Change to a Higher Classification (Bump-Ups)
09/28/2016		81 FR 66617	Proposed Approval	Failure to Attain by Attainment Date
12/19/2016		81 FR 91841	Final Approval	Change to a Higher Classification (Bump-Ups)
12/19/2016		81 FR 91841	Final Approval	Failure to Attain by Attainment Date
04/06/2017		81 FR 16740	Final Approval	Correction/Clarification
11/14/2018		83 FR 56781	Proposed Approval	Attainment Date Extension
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
02/15/2019		84 FR 4422	Proposed Approval	Area Split
02/15/2019		84 FR 4422	Proposed Approval	Clean Data Determination/Attainment Determination
07/15/2019		84 FR 33699	Final Approval	Area Split
07/15/2019		84 FR 33699	Final Approval	Clean Data Determination/Attainment Determination
08/23/2019		84 FR 44238	Final Approval	Attainment Date Extension
02/05/2020		85 FR 6491	Proposed Approval	Clean Data Determination/Attainment Determination
04/27/2020		85 FR 23274	Proposed Approval	Redesignation to Maintenance
07/10/2020		85 FR 41400	Final Approval	Redesignation to Maintenance
SHORELINE SHEBOYGAN COUNTY, WI
08/27/2015		80 FR 51992	Proposed Approval	Attainment Date Extension
05/04/2016		81 FR 26697	Final Approval	Attainment Date Extension
09/28/2016		81 FR 66617	Proposed Approval	Change to a Higher Classification (Bump-Ups)
09/28/2016		81 FR 66617	Proposed Approval	Failure to Attain by Attainment Date
12/19/2016		81 FR 91841	Final Approval	Change to a Higher Classification (Bump-Ups)
12/19/2016		81 FR 91841	Final Approval	Failure to Attain by Attainment Date
04/06/2017		81 FR 16740	Final Approval	Correction/Clarification
11/14/2018		83 FR 56781	Proposed Approval	Attainment Date Extension
02/08/2019		84 FR 2858	Reopening of Public Comment Period	Extension of Comment Period
02/15/2019		84 FR 4422	Proposed Approval	Area Split
07/15/2019		84 FR 33699	Final Approval	Area Split
08/23/2019		84 FR 44238	Final Approval	Attainment Date Extension
02/05/2020		85 FR 6491	Proposed Approval	Change to a Higher Classification (Bump-Ups)
02/05/2020		85 FR 6491	Proposed Approval	Failure to Attain by Attainment Date
05/13/2020		85 FR 28550	Proposed Approval	Redesignation to Maintenance
07/10/2020		85 FR 41405	Final Approval	Redesignation to Maintenance
WYOMING
UPPER GREEN RIVER BASIN AREA, WY
08/27/2015		80 FR 51992	Proposed Approval	Clean Data Determination/Attainment Determination
05/04/2016		81 FR 26697	Final Approval	Clean Data Determination/Attainment Determination