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Federal Register Notices Related to PM-2.5 (2006) Designations and Classifications
Federal Register Notices Related to PM-2.5 (2006) Designations and Classifications
Data is current as of August 31, 2024Ordered by State, Area Name
Click on the 'FR' link to view the Federal Register Notice
ALABAMA | ||||
BIRMINGHAM, AL | ||||
06/14/2010 | 75 FR 33562 | Proposed Approval | Clean Data Determination/Attainment Determination | |
09/20/2010 | 75 FR 57186 | Final Approval | Clean Data Determination/Attainment Determination | |
11/10/2011 | 76 FR 70091 | Proposed Approval | Redesignation to Maintenance | |
01/25/2013 | 78 FR 5306 | Final Approval | Redesignation to Maintenance | |
ALASKA | ||||
FAIRBANKS, AK | ||||
11/21/2013 | 78 FR 69806 | Proposed Approval | Change from Subpart 1 to Subpart 4 | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Failure to Attain by Attainment Date | |
05/10/2017 | 82 FR 21711 | Final Approval | Change to a Higher Classification (Bump-Ups) | |
05/10/2017 | 82 FR 21711 | Final Approval | Failure to Attain by Attainment Date | |
05/19/2020 | 85 FR 29879 | Proposed Approval | Failure to Attain by Attainment Date | |
09/02/2020 | 85 FR 54509 | Final Approval | Failure to Attain by Attainment Date | |
09/02/2020 | 85 FR 54509 | Final Approval | Attainment Date Extension Denied | |
ARIZONA | ||||
NOGALES, AZ | ||||
10/30/2012 | 77 FR 65656 | Proposed Approval | Clean Data Determination/Attainment Determination | |
01/07/2013 | 78 FR 887 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/10/2017 | 82 FR 21711 | Final Approval | Clean Data Determination/Attainment Determination | |
03/02/2022 | 87 FR 11664 | Proposed Approval | Redesignation to Maintenance | |
08/15/2022 | 87 FR 49997 | Final Approval | Redesignation to Maintenance | |
WEST CENTRAL PINAL, AZ | ||||
02/03/2011 | 76 FR 6056 | Final Approval | Designation to Nonattainment | |
07/12/2013 | 78 FR 41901 | Proposed Approval | Clean Data Determination/Attainment Determination | |
09/04/2013 | 78 FR 54394 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
04/25/2019 | 84 FR 17368 | Proposed Approval | Clean Data Determination/Attainment Determination | |
10/03/2019 | 84 FR 52766 | Final Approval | Clean Data Determination/Attainment Determination | |
CALIFORNIA | ||||
CHICO, CA | ||||
10/30/2012 | 77 FR 65651 | Proposed Approval | Clean Data Determination/Attainment Determination | |
09/10/2013 | 78 FR 55225 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/10/2017 | 82 FR 21711 | Final Approval | Clean Data Determination/Attainment Determination | |
05/09/2018 | 83 FR 21238 | Proposed Approval | Redesignation to Maintenance | |
07/11/2018 | 83 FR 32064 | Final Approval | Redesignation to Maintenance | |
IMPERIAL COUNTY, CA | ||||
11/21/2013 | 78 FR 69806 | Proposed Approval | Change from Subpart 1 to Subpart 4 | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Clean Data Determination/Attainment Determination | |
03/13/2017 | 82 FR 13413 | Proposed Approval | Clean Data Determination/Attainment Determination | |
03/13/2017 | 82 FR 13392 | Direct Final | Clean Data Determination/Attainment Determination | |
05/10/2017 | 82 FR 21711 | Final Approval | Clean Data Determination/Attainment Determination | |
LOS ANGELES-SOUTH COAST AIR BASIN, CA | ||||
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
10/20/2015 | 80 FR 63640 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
01/13/2016 | 81 FR 1514 | Final Approval | Change to a Higher Classification (Bump-Ups) | |
07/10/2020 | 85 FR 41479 | Proposed Approval | Failure to Attain by Attainment Date | |
09/16/2020 | 85 FR 57733 | Final Approval | Failure to Attain by Attainment Date | |
SACRAMENTO, CA | ||||
10/26/2012 | 77 FR 65346 | Proposed Approval | Clean Data Determination/Attainment Determination | |
07/15/2013 | 78 FR 42018 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/10/2017 | 82 FR 21711 | Final Approval | Clean Data Determination/Attainment Determination | |
SAN FRANCISCO BAY AREA, CA | ||||
10/29/2012 | 77 FR 65521 | Proposed Approval | Clean Data Determination/Attainment Determination | |
01/09/2013 | 78 FR 1760 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/10/2017 | 82 FR 21711 | Final Approval | Clean Data Determination/Attainment Determination | |
SAN JOAQUIN VALLEY, CA | ||||
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
01/13/2015 | 80 FR 1816 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
01/20/2016 | 81 FR 2993 | Final Approval | Change to a Higher Classification (Bump-Ups) | |
07/22/2020 | 85 FR 44192 | Final Approval | Attainment Date Extension | |
YUBA CITY-MARYSVILLE, CA | ||||
10/30/2012 | 77 FR 65646 | Proposed Approval | Clean Data Determination/Attainment Determination | |
01/10/2013 | 78 FR 2211 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
10/15/2014 | 79 FR 61822 | Proposed Approval | Redesignation to Maintenance | |
12/09/2014 | 79 FR 72981 | Final Approval | Redesignation to Maintenance | |
CONNECTICUT | ||||
NEW YORK-N. NEW JERSEY-LONG ISLAND, NY-NJ-CT | ||||
08/30/2012 | 77 FR 52626 | Proposed Approval | Clean Data Determination/Attainment Determination | |
12/31/2012 | 77 FR 76867 | Final Approval | Clean Data Determination/Attainment Determination | |
07/19/2013 | 78 FR 43096 | Proposed Approval | Redesignation to Maintenance | |
09/24/2013 | 78 FR 58467 | Final Approval | Redesignation to Maintenance | |
DELAWARE | ||||
PHILADELPHIA-WILMINGTON, PA-NJ-DE | ||||
10/02/2012 | 77 FR 60089 | Proposed Approval | Clean Data Determination/Attainment Determination | |
01/07/2013 | 78 FR 882 | Final Approval | Clean Data Determination/Attainment Determination | |
04/11/2014 | 79 FR 20139 | Proposed Approval | Redesignation to Maintenance | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
08/05/2014 | 79 FR 45350 | Final Approval | Redesignation to Maintenance | |
IDAHO | ||||
LOGAN, UT-ID | ||||
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
11/09/2015 | 80 FR 69172 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Failure to Attain by Attainment Date | |
06/08/2017 | 82 FR 26638 | Proposed Approval | Attainment Date Extension | |
09/08/2017 | 82 FR 42447 | Final Approval | Attainment Date Extension | |
07/18/2018 | 83 FR 33886 | Proposed Approval | Clean Data Determination/Attainment Determination | |
10/19/2018 | 83 FR 52983 | Final Approval | Clean Data Determination/Attainment Determination | |
02/17/2021 | 86 FR 9884 | Proposed Approval | Redesignation to Maintenance | |
05/21/2021 | 86 FR 27532 | Final Approval | Redesignation to Maintenance | |
MICHIGAN | ||||
DETROIT-ANN ARBOR, MI | ||||
07/05/2012 | 77 FR 39659 | Proposed Approval | Clean Data Determination/Attainment Determination | |
07/02/2013 | 78 FR 39654 | Proposed Approval | Redesignation to Maintenance | |
08/29/2013 | 78 FR 53272 | Final Approval | Redesignation to Maintenance | |
NEW JERSEY | ||||
NEW YORK-N. NEW JERSEY-LONG ISLAND, NY-NJ-CT | ||||
08/30/2012 | 77 FR 52626 | Proposed Approval | Clean Data Determination/Attainment Determination | |
12/31/2012 | 77 FR 76867 | Final Approval | Clean Data Determination/Attainment Determination | |
06/27/2013 | 78 FR 38648 | Proposed Approval | Redesignation to Maintenance | |
09/04/2013 | 78 FR 54396 | Final Approval | Redesignation to Maintenance | |
PHILADELPHIA-WILMINGTON, PA-NJ-DE | ||||
10/02/2012 | 77 FR 60089 | Proposed Approval | Clean Data Determination/Attainment Determination | |
01/07/2013 | 78 FR 882 | Final Approval | Clean Data Determination/Attainment Determination | |
06/27/2013 | 78 FR 38648 | Proposed Approval | Redesignation to Maintenance | |
09/04/2013 | 78 FR 54396 | Final Approval | Redesignation to Maintenance | |
NEW YORK | ||||
NEW YORK-N. NEW JERSEY-LONG ISLAND, NY-NJ-CT | ||||
08/30/2012 | 77 FR 52626 | Proposed Approval | Clean Data Determination/Attainment Determination | |
12/31/2012 | 77 FR 76867 | Final Approval | Clean Data Determination/Attainment Determination | |
02/11/2014 | 79 FR 8133 | Proposed Approval | Redesignation to Maintenance | |
04/18/2014 | 79 FR 21857 | Final Approval | Redesignation to Maintenance | |
OHIO | ||||
CANTON-MASSILLON, OH | ||||
08/07/2013 | 78 FR 48087 | Proposed Approval | Redesignation to Maintenance | |
10/22/2013 | 78 FR 62459 | Final Approval | Redesignation to Maintenance | |
CLEVELAND-AKRON-LORAIN, OH | ||||
07/26/2013 | 78 FR 45116 | Proposed Approval | Redesignation to Maintenance | |
09/18/2013 | 78 FR 57270 | Final Approval | Redesignation to Maintenance | |
STEUBENVILLE-WEIRTON, OH-WV | ||||
10/04/2011 | 76 FR 61291 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/14/2012 | 77 FR 28264 | Final Approval | Clean Data Determination/Attainment Determination | |
07/11/2013 | 78 FR 41752 | Proposed Approval | Redesignation to Maintenance | |
09/18/2013 | 78 FR 57273 | Final Approval | Redesignation to Maintenance | |
OREGON | ||||
KLAMATH FALLS, OR | ||||
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
04/13/2016 | 81 FR 21814 | Proposed Approval | Clean Data Determination/Attainment Determination | |
06/06/2016 | 81 FR 36176 | Final Approval | Clean Data Determination/Attainment Determination | |
OAKRIDGE, OR | ||||
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
05/18/2016 | 81 FR 31202 | Proposed Approval | Attainment Date Extension | |
07/18/2016 | 81 FR 46612 | Final Approval | Attainment Date Extension | |
11/14/2017 | 82 FR 52683 | Proposed Approval | Clean Data Determination/Attainment Determination | |
02/08/2018 | 83 FR 5537 | Final Approval | Clean Data Determination/Attainment Determination | |
05/05/2022 | 87 FR 26710 | Proposed Approval | Redesignation to Maintenance | |
08/22/2022 | 87 FR 51262 | Final Approval | Redesignation to Maintenance | |
PENNSYLVANIA | ||||
ALLENTOWN, PA | ||||
01/20/2012 | 77 FR 2941 | Proposed Approval | Clean Data Determination/Attainment Determination | |
03/29/2012 | 77 FR 18922 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
02/04/2015 | 80 FR 6019 | Proposed Approval | Redesignation to Maintenance | |
04/13/2015 | 80 FR 19548 | Final Approval | Redesignation to Maintenance | |
HARRISBURG-LEBANON-CARLISLE-YORK, PA | ||||
01/20/2012 | 77 FR 2941 | Proposed Approval | Clean Data Determination/Attainment Determination | |
03/29/2012 | 77 FR 18922 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
10/17/2014 | 79 FR 62389 | Proposed Approval | Redesignation to Maintenance | |
12/08/2014 | 79 FR 72552 | Final Approval | Redesignation to Maintenance | |
02/11/2015 | 80 FR 7540 | Final Approval | Correction/Clarification | |
04/28/2015 | 80 FR 23449 | Final Approval | Correction/Clarification | |
JOHNSTOWN, PA | ||||
01/20/2012 | 77 FR 2941 | Proposed Approval | Clean Data Determination/Attainment Determination | |
03/29/2012 | 77 FR 18922 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
04/23/2015 | 80 FR 22672 | Proposed Approval | Redesignation to Maintenance | |
07/16/2015 | 80 FR 42046 | Final Approval | Redesignation to Maintenance | |
LANCASTER, PA | ||||
01/20/2012 | 77 FR 2941 | Proposed Approval | Clean Data Determination/Attainment Determination | |
03/29/2012 | 77 FR 18922 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
05/01/2015 | 80 FR 24874 | Proposed Approval | Redesignation to Maintenance | |
07/16/2015 | 80 FR 42050 | Final Approval | Redesignation to Maintenance | |
LIBERTY-CLAIRTON, PA | ||||
11/21/2013 | 78 FR 69806 | Proposed Approval | Change from Subpart 1 to Subpart 4 | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
04/23/2015 | 80 FR 22666 | Proposed Approval | Clean Data Determination/Attainment Determination | |
07/10/2015 | 80 FR 39696 | Final Approval | Clean Data Determination/Attainment Determination | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/10/2017 | 82 FR 21711 | Final Approval | Clean Data Determination/Attainment Determination | |
PHILADELPHIA-WILMINGTON, PA-NJ-DE | ||||
10/02/2012 | 77 FR 60089 | Proposed Approval | Clean Data Determination/Attainment Determination | |
01/07/2013 | 78 FR 882 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
02/17/2015 | 80 FR 8254 | Proposed Approval | Redesignation to Maintenance | |
04/21/2015 | 80 FR 22112 | Final Approval | Redesignation to Maintenance | |
PITTSBURGH-BEAVER VALLEY, PA | ||||
08/14/2013 | 78 FR 49403 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/02/2014 | 79 FR 25014 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
05/20/2015 | 80 FR 28906 | Proposed Approval | Redesignation to Maintenance | |
10/02/2015 | 80 FR 59624 | Final Approval | Redesignation to Maintenance | |
TENNESSEE | ||||
KNOXVILLE-SEVIERVILLE-LA FOLLETTE, TN | ||||
06/06/2012 | 77 FR 33360 | Proposed Approval | Clean Data Determination/Attainment Determination | |
08/02/2012 | 77 FR 45954 | Final Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/10/2017 | 82 FR 21711 | Final Approval | Clean Data Determination/Attainment Determination | |
05/30/2017 | 82 FR 24621 | Proposed Approval | Redesignation to Maintenance | |
08/28/2017 | 82 FR 40718 | Final Approval | Redesignation to Maintenance | |
UTAH | ||||
LOGAN, UT-ID | ||||
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
11/09/2015 | 80 FR 69173 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Failure to Attain by Attainment Date | |
06/06/2017 | 82 FR 25992 | Proposed Approval | Attainment Date Extension | |
09/08/2017 | 82 FR 42447 | Final Approval | Attainment Date Extension | |
07/18/2018 | 83 FR 33886 | Proposed Approval | Clean Data Determination/Attainment Determination | |
10/19/2018 | 83 FR 52983 | Final Approval | Clean Data Determination/Attainment Determination | |
02/26/2021 | 86 FR 11694 | Proposed Approval | Redesignation to Maintenance | |
05/19/2021 | 86 FR 27035 | Final Approval | Redesignation to Maintenance | |
PROVO, UT | ||||
11/21/2013 | 78 FR 69806 | Proposed Approval | Change from Subpart 1 to Subpart 4 | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
11/09/2015 | 80 FR 69173 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Failure to Attain by Attainment Date | |
05/10/2017 | 82 FR 21711 | Final Approval | Change to a Higher Classification (Bump-Ups) | |
05/10/2017 | 82 FR 21711 | Final Approval | Failure to Attain by Attainment Date | |
02/12/2019 | 84 FR 3373 | Proposed Approval | Clean Data Determination/Attainment Determination | |
04/10/2019 | 84 FR 14267 | Final Approval | Clean Data Determination/Attainment Determination | |
06/08/2020 | 85 FR 35033 | Proposed Approval | Clean Data Determination/Attainment Determination | |
11/06/2020 | 85 FR 71023 | Proposed Approval | Redesignation to Maintenance | |
11/17/2020 | 85 FR 73229 | Final Approval | Clean Data Determination/Attainment Determination | |
04/06/2021 | 86 FR 17762 | Reopening of Public Comment Period | Redesignation to Maintenance | |
SALT LAKE CITY, UT | ||||
11/21/2013 | 78 FR 69806 | Proposed Approval | Change from Subpart 1 to Subpart 4 | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
11/09/2015 | 80 FR 69173 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Change to a Higher Classification (Bump-Ups) | |
12/16/2016 | 81 FR 91088 | Proposed Approval | Failure to Attain by Attainment Date | |
05/10/2017 | 82 FR 21711 | Final Approval | Change to a Higher Classification (Bump-Ups) | |
05/10/2017 | 82 FR 21711 | Final Approval | Failure to Attain by Attainment Date | |
06/05/2019 | 84 FR 26053 | Proposed Approval | Clean Data Determination/Attainment Determination | |
06/24/2019 | 84 FR 29455 | Proposed Approval | Extension of Comment Period | |
09/27/2019 | 84 FR 51055 | Final Approval | Clean Data Determination/Attainment Determination | |
06/08/2020 | 85 FR 35033 | Proposed Approval | Clean Data Determination/Attainment Determination | |
07/07/2020 | 85 FR 40618 | Proposed Approval | Correction/Clarification | |
11/06/2020 | 85 FR 71023 | Proposed Approval | Redesignation to Maintenance | |
11/17/2020 | 85 FR 73229 | Final Approval | Clean Data Determination/Attainment Determination | |
04/06/2021 | 86 FR 17762 | Reopening of Public Comment Period | Redesignation to Maintenance | |
WASHINGTON | ||||
TACOMA, WA | ||||
07/05/2012 | 77 FR 39657 | Proposed Approval | Clean Data Determination/Attainment Determination | |
09/04/2012 | 77 FR 53772 | Final Approval | Clean Data Determination/Attainment Determination | |
07/18/2013 | 78 FR 42905 | Proposed Approval | Clean Data Determination/Attainment Determination | |
06/02/2014 | 79 FR 31566 | Final Approval | Change from Subpart 1 to Subpart 4 | |
12/11/2014 | 79 FR 73525 | Proposed Approval | Redesignation to Maintenance | |
02/10/2015 | 80 FR 7347 | Final Approval | Redesignation to Maintenance | |
WEST VIRGINIA | ||||
CHARLESTON, WV | ||||
08/19/2011 | 76 FR 51927 | Proposed Approval | Clean Data Determination/Attainment Determination | |
11/18/2011 | 76 FR 71450 | Final Approval | Clean Data Determination/Attainment Determination | |
01/24/2014 | 79 FR 4121 | Proposed Approval | Redesignation to Maintenance | |
03/31/2014 | 79 FR 17884 | Final Approval | Redesignation to Maintenance | |
STEUBENVILLE-WEIRTON, OH-WV | ||||
10/04/2011 | 76 FR 61291 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/14/2012 | 77 FR 28264 | Final Approval | Clean Data Determination/Attainment Determination | |
12/09/2013 | 78 FR 73769 | Proposed Approval | Redesignation to Maintenance | |
03/18/2014 | 79 FR 15019 | Final Approval | Redesignation to Maintenance | |
WISCONSIN | ||||
MILWAUKEE-RACINE, WI | ||||
04/24/2012 | 77 FR 24436 | Proposed Approval | Clean Data Determination/Attainment Determination | |
05/23/2012 | 77 FR 30453 | Proposed Approval | Extension of Comment Period | |
12/28/2012 | 77 FR 76427 | Proposed Approval | Clean Data Determination/Attainment Determination | |
02/18/2014 | 79 FR 9134 | Proposed Approval | Redesignation to Maintenance | |
04/22/2014 | 79 FR 22415 | Final Approval | Redesignation to Maintenance |