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

Data is current as of October 31, 2020
Ordered by State, Area Name

Click on the 'FR' link to view the Federal Register Notice
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 CO (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)   
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   
NEVADA CO. (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   
PECHANGA BAND OF LUISENO MISSION INDIANS OF THE PECHANGA RESERVATION
  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   
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   
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   
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   
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   
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   
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   
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   
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   
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   
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   
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   
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   
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