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Federal Register Notices Related to PM-2.5 (2006) 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
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   
  11/25/2024      89 FR 92873      Proposed Approval      Clean Data Determination/Attainment Determination   
  06/03/2025      90 FR 23443      Final Approval      Clean Data Determination/Attainment Determination   
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   
  04/07/2025      90 FR 14939      Proposed Approval      Redesignation to Maintenance   
  07/24/2025      90 FR 34770      Final Approval      Redesignation to Maintenance   
  08/08/2025      90 FR 38406      Final Approval      Correction/Clarification   
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   
  11/19/2025      90 FR 51999      Final Approval      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   
  11/19/2025      90 FR 51999      Final Approval      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   

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