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Federal Register Notices Related to PM-10 (1987) Designations and Classifications

Data is current as of September 30, 2022
Ordered by State, Area Name

Click on the 'FR' link to view the Federal Register Notice
ALASKA
ANCHORAGE; EAGLE RIVER, AK
  10/19/2010      75 FR 64241      Proposed Approval      Clean Data Determination/Attainment Determination   
  10/19/2010      75 FR 64162      Direct Final      Clean Data Determination/Attainment Determination   
  01/07/2013      78 FR 924      Proposed Approval      Redesignation to Maintenance   
  01/07/2013      78 FR 900      Direct Final      Redesignation to Maintenance   
JUNEAU; MENDENHALL VALLEY AREA, AK
  07/16/2010      75 FR 41421      Proposed Approval      Clean Data Determination/Attainment Determination   
  07/16/2010      75 FR 41379      Direct Final      Clean Data Determination/Attainment Determination   
  05/09/2013      78 FR 27168      Proposed Approval      Redesignation to Maintenance   
  05/09/2013      78 FR 27071      Direct Final      Redesignation to Maintenance   
ARIZONA
COCHISE COUNTY; PAUL SPUR/DOUGLAS PLANNING AREA, AZ
  11/02/2010      75 FR 67303      Proposed Approval      Clean Data Determination/Attainment Determination   
  11/02/2010      75 FR 67220      Direct Final      Clean Data Determination/Attainment Determination   
  11/29/2010      75 FR 72964      Withdrawal      Clean Data Determination/Attainment Determination   
  01/11/2011      76 FR 1532      Final Approval      Clean Data Determination/Attainment Determination   
  05/25/2012      77 FR 31268      Proposed Approval      Clean Data Determination/Attainment Determination   
  08/02/2012      77 FR 45965      Final Approval      Clean Data Determination/Attainment Determination   
GILA COUNTY (PART): PAYSON, AZ
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  07/25/2001      66 FR 38603      Proposed Approval      Clean Data Determination/Attainment Determination   
  02/15/2002      67 FR 7082      Final Approval      Clean Data Determination/Attainment Determination   
  06/26/2002      67 FR 43072      Proposed Approval      Redesignation to Maintenance   
  06/26/2002      67 FR 43013      Direct Final      Redesignation to Maintenance   
HAYDEN, AZ
  03/28/2007      72 FR 14502      Proposed Approval      Area Split   
  03/28/2007      72 FR 14422      Direct Final      Area Split   
  11/02/2010      75 FR 67303      Proposed Approval      Clean Data Determination/Attainment Determination   
  11/02/2010      75 FR 67220      Direct Final      Clean Data Determination/Attainment Determination   
  11/29/2010      75 FR 72964      Withdrawal      Clean Data Determination/Attainment Determination   
  01/11/2011      76 FR 1532      Final Approval      Clean Data Determination/Attainment Determination   
MARICOPA AND PINAL COUNTIES; PHOENIX PLANNING AREA, AZ
  06/07/1995      60 FR 30046      Proposed Approval      Change to a Higher Classification (Bump-Ups)   
  05/10/1996      61 FR 21372      Final Approval      Change to a Higher Classification (Bump-Ups)   
  06/06/1997      62 FR 31025      Proposed Approval      Redesignation to Maintenance   
  04/13/2000      65 FR 19963      Proposed Approval      Attainment Date Extension   
  10/02/2001      66 FR 50251      Proposed Approval      Attainment Date Extension   
  07/25/2002      67 FR 48718      Final Approval      Attainment Date Extension   
  10/10/2004      99 FR 5953      Court-Order      Attainment Date Extension Remanded   
  03/10/2005      70 FR 11882      Final Approval      Boundary Change   
  07/01/2005      70 FR 38064      Proposed Approval      Attainment Date Extension   
  08/03/2006      71 FR 43979      Final Approval      Attainment Date Extension   
  03/23/2007      72 FR 13723      Proposed Approval      Failure to Attain by Attainment Date   
  06/06/2007      72 FR 31183      Final Approval      Failure to Attain by Attainment Date   
  08/14/2008      73 FR 47542      Final Approval      Attainment Date Extension   
MIAMI, AZ
  03/28/2007      72 FR 14502      Proposed Approval      Area Split   
  03/28/2007      72 FR 14502      Proposed Approval      Clean Data Determination/Attainment Determination   
  03/28/2007      72 FR 14422      Direct Final      Area Split   
  03/28/2007      72 FR 14422      Direct Final      Clean Data Determination/Attainment Determination   
MOHAVE COUNTY (PART); BULLHEAD CITY, AZ
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  07/25/2001      66 FR 38603      Proposed Approval      Clean Data Determination/Attainment Determination   
  02/15/2002      67 FR 7082      Final Approval      Clean Data Determination/Attainment Determination   
  06/26/2002      67 FR 43073      Proposed Approval      Redesignation to Maintenance   
  06/26/2002      67 FR 43020      Direct Final      Boundary Change   
  06/26/2002      67 FR 43020      Direct Final      Redesignation to Maintenance   
PIMA COUNTY; AJO PLANNING AREA, AZ
  02/08/2006      71 FR 6437      Proposed Approval      Clean Data Determination/Attainment Determination   
  02/08/2006      71 FR 6352      Direct Final      Clean Data Determination/Attainment Determination   
  06/04/2020      85 FR 34381      Proposed Approval      Redesignation to Maintenance   
  08/04/2020      85 FR 47032      Final Approval      Redesignation to Maintenance   
PIMA COUNTY; RILLITO PLANNING AREA, AZ
  08/08/2006      71 FR 44944      Proposed Approval      Clean Data Determination/Attainment Determination   
  08/08/2006      71 FR 44920      Direct Final      Clean Data Determination/Attainment Determination   
PINAL COUNTY (PART); WEST PINAL, AZ
  10/01/2010      75 FR 60680      Proposed Approval      Designation to Nonattainment   
  05/31/2012      77 FR 32024      Final Approval      Designation to Nonattainment   
  04/07/2020      85 FR 19408      Proposed Approval      Change to a Higher Classification (Bump-Ups)   
  04/07/2020      85 FR 19408      Proposed Approval      Failure to Attain by Attainment Date   
  06/24/2020      85 FR 37756      Final Approval      Change to a Higher Classification (Bump-Ups)   
  06/24/2020      85 FR 37756      Final Approval      Failure to Attain by Attainment Date   
SANTA CRUZ COUNTY; NOGALES PLANNING AREA, AZ
  11/02/2010      75 FR 67303      Proposed Approval      Clean Data Determination/Attainment Determination   
  11/02/2010      75 FR 67220      Direct Final      Clean Data Determination/Attainment Determination   
  11/29/2010      75 FR 72964      Withdrawal      Clean Data Determination/Attainment Determination   
  01/11/2011      76 FR 1532      Final Approval      Clean Data Determination/Attainment Determination   
YUMA, AZ
  03/14/2006      71 FR 13063      Proposed Approval      Clean Data Determination/Attainment Determination   
  03/14/2006      71 FR 13021      Direct Final      Clean Data Determination/Attainment Determination   
  06/01/2021      86 FR 29219      Proposed Approval      Clean Data Determination Rescission   
  10/19/2021      86 FR 57769      Proposed Approval      Extension of Comment Period   
  05/17/2022      87 FR 29830      Final Approval      Clean Data Determination Rescission   
CALIFORNIA
COSO JUNCTION, CA
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  06/13/2001      66 FR 31873      Proposed Approval      Area Split   
  08/06/2002      67 FR 50805      Final Approval      Area Split   
  09/19/2002      67 FR 59005      Final Approval      Correction/Clarification   
  03/23/2010      75 FR 13710      Proposed Approval      Clean Data Determination/Attainment Determination   
  05/19/2010      75 FR 27944      Final Approval      Clean Data Determination/Attainment Determination   
  06/24/2010      75 FR 36023      Proposed Approval      Redesignation to Maintenance   
  09/03/2010      75 FR 54031      Final Approval      Redesignation to Maintenance   
EAST KERN COUNTY, CA
  11/12/2008      73 FR 66759      Final Approval      Area Split   
  03/21/2011      76 FR 15219      Final Approval      Technical Amendment   
IMPERIAL VALLEY, CA
  08/10/2001      66 FR 42187      Proposed Approval      Change to a Higher Classification (Bump-Ups)   
  10/09/2003      99 FR 14995      Court-Order      Change to a Higher Classification (Bump-Ups) Vacated  
  12/18/2003      99 FR 17741      Court-Order      Change to a Higher Classification (Bump-Ups) Vacated  
  08/11/2004      69 FR 48835      Proposed Approval      Change to a Higher Classification (Bump-Ups)   
  08/11/2004      69 FR 48792      Final Approval      Change to a Higher Classification (Bump-Ups)   
  08/20/2004      69 FR 51753      Final Approval      Correction/Clarification   
  12/11/2007      72 FR 70222      Final Approval      Failure to Attain by Attainment Date   
  03/19/2013      78 FR 16827      Proposed Approval      Correction/Clarification   
  03/19/2013      78 FR 16792      Direct Final      Correction/Clarification   
  04/02/2020      85 FR 18509      Proposed Approval      Redesignation to Maintenance   
  09/18/2020      85 FR 58286      Final Approval      Redesignation to Maintenance   
INDIAN WELLS, CA
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  06/13/2001      66 FR 31873      Proposed Approval      Area Split   
  08/06/2002      67 FR 50805      Final Approval      Area Split   
  09/19/2002      67 FR 59005      Final Approval      Correction/Clarification   
  12/17/2002      67 FR 77196      Proposed Approval      Redesignation to Maintenance   
  05/07/2003      68 FR 24368      Final Approval      Redesignation to Maintenance   
  06/23/2003      68 FR 37090      Final Approval      Correction/Clarification   
INYO COUNTY; OWENS VALLEY PLANNING AREA, CA
  01/08/1993      58 FR 3334      Final Approval      Change to a Higher Classification (Bump-Ups)   
  03/23/2007      72 FR 13723      Proposed Approval      Failure to Attain by Attainment Date   
  06/06/2007      72 FR 31183      Final Approval      Failure to Attain by Attainment Date   
MONO BASIN, CA
  11/29/1993      58 FR 62544      Final Approval      Designation to Nonattainment   
MONO COUNTY; MAMMOTH LAKE PLANNING AREA, CA
  07/30/2015      80 FR 45477      Proposed Approval      Redesignation to Maintenance   
  10/05/2015      80 FR 60049      Final Approval      Redesignation to Maintenance   
RIVERSIDE COUNTY; COACHELLA VALLEY PLANNING AREA, CA
  01/08/1993      58 FR 3334      Final Approval      Change to a Higher Classification (Bump-Ups)   
  12/17/2002      67 FR 77204      Proposed Approval      Attainment Date Extension   
  04/18/2003      68 FR 19318      Final Approval      Attainment Date Extension   
  08/15/2003      68 FR 48848      Proposed Approval      Boundary Change   
  10/07/2003      68 FR 57820      Final Approval      Boundary Change   
RIVERSIDE, LOS ANGELES, ORANGE, & SAN BERNARDINO COUNTIES; SOUTH COAST AIR BASIN, CA
  01/08/1993      58 FR 3334      Final Approval      Change to a Higher Classification (Bump-Ups)   
  12/17/2002      67 FR 77212      Proposed Approval      Attainment Date Extension   
  04/18/2003      68 FR 19316      Final Approval      Attainment Date Extension   
  08/15/2003      68 FR 48848      Proposed Approval      Boundary Change   
  10/07/2003      68 FR 57820      Final Approval      Boundary Change   
  04/08/2013      78 FR 20868      Proposed Approval      Redesignation to Maintenance   
  06/26/2013      78 FR 38223      Final Approval      Redesignation to Maintenance   
SACRAMENTO COUNTY, CA
  07/25/2001      66 FR 38603      Proposed Approval      Clean Data Determination/Attainment Determination   
  02/15/2002      67 FR 7082      Final Approval      Clean Data Determination/Attainment Determination   
  07/24/2013      78 FR 44494      Proposed Approval      Redesignation to Maintenance   
  09/26/2013      78 FR 59261      Final Approval      Redesignation to Maintenance   
SAN BERNARDINO COUNTY, CA
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  07/25/2001      66 FR 38603      Proposed Approval      Clean Data Determination/Attainment Determination   
  02/15/2002      67 FR 7082      Final Approval      Clean Data Determination/Attainment Determination   
SAN JOAQUIN VALLEY AIR BASIN, CA
  01/08/1993      58 FR 3334      Final Approval      Change to a Higher Classification (Bump-Ups)   
  07/19/2006      71 FR 40952      Proposed Approval      Clean Data Determination/Attainment Determination   
  10/30/2006      71 FR 63641      Final Approval      Clean Data Determination/Attainment Determination   
  08/27/2007      72 FR 49045      Proposed Approval      Clean Data Determination/Attainment Determination   
  03/19/2008      73 FR 14687      Final Approval      Clean Data Determination/Attainment Determination   
  04/25/2008      73 FR 22307      Proposed Approval      Area Split   
  04/25/2008      73 FR 22307      Proposed Approval      Redesignation to Maintenance   
  05/23/2008      73 FR 30029      Proposed Approval      Extension of Comment Period   
  11/12/2008      73 FR 66759      Final Approval      Area Split   
  11/12/2008      73 FR 66759      Final Approval      Redesignation to Maintenance   
  03/21/2011      76 FR 15219      Final Approval      Technical Amendment   
TRONA, CA
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  06/13/2001      66 FR 31873      Proposed Approval      Area Split   
  08/06/2002      67 FR 50805      Final Approval      Area Split   
  08/06/2002      67 FR 50805      Final Approval      Clean Data Determination/Attainment Determination   
  09/19/2002      67 FR 59005      Final Approval      Correction/Clarification   
  06/23/2003      68 FR 37090      Final Approval      Correction/Clarification   
COLORADO
ADAMS, DENVER, AND BOULDER COUNTIES; DENVER METROPOLITAN AREA, CO
  05/23/2002      67 FR 36124      Proposed Approval      Redesignation to Maintenance   
  09/16/2002      67 FR 58335      Final Approval      Redesignation to Maintenance   
ARCHULETA COUNTY; PAGOSA SPRINGS, CO
  06/15/2001      66 FR 32594      Proposed Approval      Redesignation to Maintenance   
  06/15/2001      66 FR 32556      Direct Final      Redesignation to Maintenance   
FREMONT COUNTY; CANON CITY AREA, CO
  05/30/2000      65 FR 34427      Proposed Approval      Redesignation to Maintenance   
  05/30/2000      65 FR 34399      Direct Final      Redesignation to Maintenance   
PITKIN COUNTY; ASPEN, CO
  05/15/2003      68 FR 26248      Proposed Approval      Redesignation to Maintenance   
  05/15/2003      68 FR 26212      Direct Final      Redesignation to Maintenance   
PROWERS COUNTY; LAMAR, CO
  08/05/2004      69 FR 47399      Proposed Approval      Redesignation to Maintenance   
  08/05/2004      69 FR 47366      Direct Final      Redesignation to Maintenance   
  09/20/2004      69 FR 56163      Withdrawal      Redesignation to Maintenance   
  10/25/2005      70 FR 61563      Direct Final      Redesignation to Maintenance   
  12/06/2005      70 FR 72597      Final Approval      Correction/Clarification   
ROUTT COUNTY (PART); STEAMBOAT SPRINGS, CO
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  08/05/2004      69 FR 47399      Proposed Approval      Redesignation to Maintenance   
  08/05/2004      69 FR 47366      Direct Final      Redesignation to Maintenance   
  09/20/2004      69 FR 56163      Withdrawal      Redesignation to Maintenance   
  10/25/2004      69 FR 62210      Final Approval      Redesignation to Maintenance   
SAN MIGUEL COUNTY; TELLURIDE, CO
  06/15/2001      66 FR 32594      Proposed Approval      Redesignation to Maintenance   
  06/15/2001      66 FR 32556      Direct Final      Redesignation to Maintenance   
CONNECTICUT
NEW HAVEN COUNTY, CT
  10/13/2005      70 FR 59690      Proposed Approval      Redesignation to Maintenance   
  10/13/2005      70 FR 59657      Direct Final      Redesignation to Maintenance   
IDAHO
ADA COUNTY; BOISE, ID
  10/26/1998      63 FR 57086      Proposed Approval      Designation Revocation   
  03/12/1999      64 FR 12257      Final Approval      Designation Revocation   
  06/26/2000      65 FR 39321      Proposed Approval      Designation Reinstatement   
  07/30/2003      68 FR 44715      Proposed Approval      Redesignation to Maintenance   
  07/30/2003      68 FR 44715      Proposed Approval      Designation Reinstatement   
  10/27/2003      68 FR 61106      Final Approval      Redesignation to Maintenance   
  10/27/2003      68 FR 61106      Final Approval      Designation Reinstatement   
BONNER COUNTY; THE SANDPOINT AREA, ID
  08/28/1995      60 FR 44452      Proposed Approval      Failure to Attain by Attainment Date   
  08/28/1995      60 FR 44452      Proposed Approval      Attainment Date Extension   
  05/08/1996      61 FR 20730      Final Approval      Failure to Attain by Attainment Date   
  05/08/1996      61 FR 20730      Final Approval      Attainment Date Extension   
  12/18/1996      61 FR 66642      Proposed Approval      Failure to Attain by Attainment Date   
  12/18/1996      61 FR 66642      Proposed Approval      Attainment Date Extension   
  12/18/1996      61 FR 66602      Direct Final      Failure to Attain by Attainment Date   
  12/18/1996      61 FR 66602      Direct Final      Attainment Date Extension   
  06/22/2010      75 FR 35362      Proposed Approval      Clean Data Determination/Attainment Determination   
  06/22/2010      75 FR 35302      Direct Final      Clean Data Determination/Attainment Determination   
  02/01/2013      78 FR 7340      Proposed Approval      Redesignation to Maintenance   
  04/03/2013      78 FR 20001      Final Approval      Redesignation to Maintenance   
POWER-BANNOCK COUNTIES; FORT HALL INDIAN RESERVATION, ID
  06/19/1998      63 FR 33597      Proposed Approval      Designation to Nonattainment   
  06/19/1998      63 FR 33605      Proposed Approval      Change to a Higher Classification (Bump-Ups)   
  11/05/1998      63 FR 59722      Final Approval      Designation to Nonattainment   
  05/13/2010      75 FR 26898      Proposed Approval      Clean Data Determination/Attainment Determination   
  07/28/2010      75 FR 44142      Final Approval      Clean Data Determination/Attainment Determination   
POWER-BANNOCK COUNTIES; PORTNEUF VALLEY AREA, ID
  08/28/1995      60 FR 44452      Proposed Approval      Failure to Attain by Attainment Date   
  08/28/1995      60 FR 44452      Proposed Approval      Attainment Date Extension   
  05/08/1996      61 FR 20730      Final Approval      Failure to Attain by Attainment Date   
  05/08/1996      61 FR 20730      Final Approval      Attainment Date Extension   
  06/12/1996      61 FR 29726      Proposed Approval      Correction/Clarification   
  06/12/1996      61 FR 29667      Direct Final      Correction/Clarification   
  12/18/1996      61 FR 66642      Proposed Approval      Failure to Attain by Attainment Date   
  12/18/1996      61 FR 66642      Proposed Approval      Attainment Date Extension   
  12/18/1996      61 FR 66602      Direct Final      Failure to Attain by Attainment Date   
  12/18/1996      61 FR 66602      Direct Final      Attainment Date Extension   
  06/19/1998      63 FR 33597      Proposed Approval      Area Split   
  11/05/1998      63 FR 59722      Final Approval      Area Split   
  12/06/2000      65 FR 76203      Proposed Approval      Clean Data Determination/Attainment Determination   
  05/20/2005      70 FR 29243      Proposed Approval      Redesignation to Maintenance   
  07/13/2006      71 FR 39574      Final Approval      Redesignation to Maintenance   
SHOSHONE COUNTY; CITY OF PINEHURST, ID
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  08/23/2001      66 FR 44329      Proposed Approval      Clean Data Determination/Attainment Determination   
  08/23/2001      66 FR 44304      Direct Final      Clean Data Determination/Attainment Determination   
  05/11/2018      83 FR 21976      Proposed Approval      Redesignation to Maintenance   
  09/11/2018      83 FR 45830      Final Approval      Redesignation to Maintenance   
SHOSHONE COUNTY; PINEHURST EXPANSION AREA, ID
  08/23/2001      66 FR 44329      Proposed Approval      Clean Data Determination/Attainment Determination   
  08/23/2001      66 FR 44304      Direct Final      Clean Data Determination/Attainment Determination   
  02/12/2003      68 FR 7174      Final Approval      Correction/Clarification   
  05/11/2018      83 FR 21976      Proposed Approval      Redesignation to Maintenance   
  09/11/2018      83 FR 45830      Final Approval      Redesignation to Maintenance   
ILLINOIS
COOK COUNTY; LYONS TOWNSHIP, IL
  09/22/2005      70 FR 55610      Proposed Approval      Redesignation to Maintenance   
  09/22/2005      70 FR 55541      Direct Final      Redesignation to Maintenance   
COOK COUNTY; SOUTHEAST CHICAGO, IL
  09/22/2005      70 FR 55611      Proposed Approval      Redesignation to Maintenance   
  09/22/2005      70 FR 55545      Direct Final      Redesignation to Maintenance   
LASALLE COUNTY; OGLESBY, IL
  08/08/1996      61 FR 41372      Proposed Approval      Redesignation to Maintenance   
  08/08/1996      61 FR 41342      Direct Final      Redesignation to Maintenance   
MADISON COUNTY; GRANITE CITY TOWNSHIP AND NAMEOKI TOWNSHIP, IL
  03/11/1998      63 FR 11865      Proposed Approval      Redesignation to Maintenance   
  03/11/1998      63 FR 11842      Direct Final      Redesignation to Maintenance   
INDIANA
LAKE COUNTY; CITIES OF EAST CHICAGO, HAMMOND, WHITING, AND GARY, IN
  01/10/2003      68 FR 1414      Proposed Approval      Redesignation to Maintenance   
  01/10/2003      68 FR 1370      Direct Final      Redesignation to Maintenance   
VERMILLION COUNTY; PART OF CLINTON TOWNSHIP, IN
  08/26/1997      62 FR 45199      Proposed Approval      Redesignation to Maintenance   
  08/26/1997      62 FR 45168      Direct Final      Redesignation to Maintenance   
MAINE
AROOSTOCK COUNTY; CITY OF PRESQUE ISLE, ME
  08/30/1995      60 FR 45113      Proposed Approval      Redesignation to Maintenance   
  08/30/1995      60 FR 45056      Direct Final      Redesignation to Maintenance   
MICHIGAN
WAYNE COUNTY, MI
  08/05/1996      61 FR 40592      Proposed Approval      Redesignation to Maintenance   
  08/05/1996      61 FR 40516      Direct Final      Redesignation to Maintenance   
MINNESOTA
OLMSTED COUNTY, MN
  05/31/1995      60 FR 28377      Proposed Approval      Redesignation to Maintenance   
  05/31/1995      60 FR 28339      Direct Final      Redesignation to Maintenance   
RAMSEY COUNTY, MN
  07/26/2002      67 FR 48839      Proposed Approval      Redesignation to Maintenance   
  07/26/2002      67 FR 48787      Direct Final      Redesignation to Maintenance   
MONTANA
FLATHEAD COUNTY; COLUMBIA FALLS AND VICINITY, MT
  01/31/2011      76 FR 5323      Proposed Approval      Clean Data Determination/Attainment Determination   
  01/31/2011      76 FR 5280      Direct Final      Clean Data Determination/Attainment Determination   
  03/20/2020      85 FR 16029      Proposed Approval      Redesignation to Maintenance   
  06/26/2020      85 FR 38327      Final Approval      Redesignation to Maintenance   
FLATHEAD COUNTY; KALISPELL AND VICINITY, MT
  03/20/2020      85 FR 16029      Proposed Approval      Redesignation to Maintenance   
  06/26/2020      85 FR 38327      Final Approval      Redesignation to Maintenance   
FLATHEAD COUNTY; WHITEFISH AND VICINITY, MT
  10/19/1993      58 FR 53886      Final Approval      Designation to Nonattainment   
  03/08/2022      87 FR 12912      Proposed Approval      Redesignation to Maintenance   
  06/08/2022      87 FR 34795      Final Approval      Redesignation to Maintenance   
LINCOLN COUNTY; LIBBY AND VICINITY, MT
  01/31/2011      76 FR 5323      Proposed Approval      Clean Data Determination/Attainment Determination   
  01/31/2011      76 FR 5280      Direct Final      Clean Data Determination/Attainment Determination   
  03/20/2020      85 FR 16029      Proposed Approval      Redesignation to Maintenance   
  06/26/2020      85 FR 38327      Final Approval      Redesignation to Maintenance   
MISSOULA, MT
  03/05/2019      84 FR 7846      Proposed Approval      Redesignation to Maintenance   
  05/24/2019      84 FR 24037      Final Approval      Redesignation to Maintenance   
SANDERS COUNTY (PART); THOMPSON FALLS AND VICINITY, MT
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  03/08/2022      87 FR 12905      Proposed Approval      Redesignation to Maintenance   
  06/08/2022      87 FR 34797      Final Approval      Redesignation to Maintenance   
SILVER BOW COUNTY; BUTTE, MT
  04/19/2021      86 FR 20353      Proposed Approval      Redesignation to Maintenance   
  06/25/2021      86 FR 33547      Final Approval      Redesignation to Maintenance   
NEVADA
CLARK COUNTY; LAS VEGAS PLANNING AREA, NV
  01/08/1993      58 FR 3334      Final Approval      Change to a Higher Classification (Bump-Ups)   
  01/22/2003      68 FR 2954      Proposed Approval      Attainment Date Extension   
  06/09/2004      69 FR 32273      Final Approval      Attainment Date Extension   
  08/03/2010      75 FR 45571      Proposed Approval      Clean Data Determination/Attainment Determination   
  08/03/2010      75 FR 45485      Direct Final      Clean Data Determination/Attainment Determination   
  07/21/2014      79 FR 42258      Proposed Approval      Redesignation to Maintenance   
  10/06/2014      79 FR 60078      Final Approval      Redesignation to Maintenance   
WASHOE COUNTY; RENO PLANNING AREA, NV
  11/22/2000      65 FR 70326      Proposed Approval      Change to a Higher Classification (Bump-Ups)   
  01/08/2001      66 FR 1268      Direct Final      Change to a Higher Classification (Bump-Ups)   
  02/28/2011      76 FR 10817      Proposed Approval      Clean Data Determination/Attainment Determination   
  04/19/2011      76 FR 21807      Direct Final      Clean Data Determination/Attainment Determination   
  09/30/2015      80 FR 58640      Proposed Approval      Redesignation to Maintenance   
  12/08/2015      80 FR 76232      Final Approval      Redesignation to Maintenance   
NEW YORK
NEW YORK COUNTY, NY
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  09/13/2013      78 FR 56633      Proposed Approval      Clean Data Determination/Attainment Determination   
  12/02/2013      78 FR 72032      Final Approval      Clean Data Determination/Attainment Determination   
  07/29/2015      80 FR 45067      Final Approval      Correction/Clarification   
OHIO
CUYAHOGA COUNTY, OH
  07/10/2000      65 FR 42312      Proposed Approval      Redesignation to Maintenance   
  12/11/2000      65 FR 77308      Final Approval      Redesignation to Maintenance   
JEFFERSON COUNTY, OH
  07/10/2000      65 FR 42312      Proposed Approval      Redesignation to Maintenance   
  12/11/2000      65 FR 77308      Final Approval      Redesignation to Maintenance   
OREGON
JACKSON COUNTY; MEDFORD-ASHLAND (INCLUDING WHITE CITY), OR
  06/19/2006      71 FR 35233      Proposed Approval      Redesignation to Maintenance   
  06/19/2006      71 FR 35163      Direct Final      Redesignation to Maintenance   
JOSEPHINE COUNTY; GRANTS PASS, OR
  10/27/2003      68 FR 61178      Proposed Approval      Redesignation to Maintenance   
  10/27/2003      68 FR 61111      Direct Final      Redesignation to Maintenance   
KLAMATH FALLS, OR
  10/21/2003      68 FR 60060      Proposed Approval      Redesignation to Maintenance   
  10/21/2003      68 FR 60036      Direct Final      Redesignation to Maintenance   
LAKE COUNTY (PART); LAKEVIEW, OR
  09/24/1993      58 FR 49931      Final Approval      Designation to Nonattainment   
  03/22/2006      71 FR 14438      Proposed Approval      Redesignation to Maintenance   
  03/22/2006      71 FR 14399      Direct Final      Redesignation to Maintenance   
  05/18/2006      71 FR 28777      Withdrawal      Redesignation to Maintenance   
  06/19/2006      71 FR 35159      Final Approval      Redesignation to Maintenance   
LANE COUNTY (PART); OAKRIDGE, OR
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  07/26/2001      66 FR 38947      Direct Final      Clean Data Determination/Attainment Determination   
  05/09/2022      87 FR 27540      Proposed Approval      Redesignation to Maintenance   
  08/22/2022      87 FR 51265      Final Approval      Redesignation to Maintenance   
LANE COUNTY; EUGENE/SPRINGFIELD, OR
  04/11/2013      78 FR 21583      Proposed Approval      Redesignation to Maintenance   
  04/11/2013      78 FR 21547      Direct Final      Redesignation to Maintenance   
UNION COUNTY; LAGRANDE, OR
  03/22/2006      71 FR 14438      Proposed Approval      Redesignation to Maintenance   
  03/22/2006      71 FR 14393      Direct Final      Redesignation to Maintenance   
  05/18/2006      71 FR 28777      Withdrawal      Redesignation to Maintenance   
  06/19/2006      71 FR 35161      Final Approval      Redesignation to Maintenance   
PENNSYLVANIA
ALLEGHENY COUNTY; LIBERTY, LINCOLN, PORT VUE, GLASSPORT, CLAIRTON, PA
  07/18/2003      68 FR 42657      Proposed Approval      Redesignation to Maintenance   
  09/11/2003      68 FR 53515      Final Approval      Redesignation to Maintenance   
PUERTO RICO
MUN. OF GUAYNABO, PR
  09/02/2009      74 FR 45387      Proposed Approval      Redesignation to Maintenance   
  01/12/2010      75 FR 1543      Final Approval      Redesignation to Maintenance   
UTAH
OGDEN, UT
  07/28/1995      60 FR 38726      Direct Final      Designation to Nonattainment   
  12/01/2009      74 FR 62717      Proposed Disapproval      Redesignation to Maintenance   
  12/30/2009      74 FR 69049      Proposed Disapproval      Extension of Comment Period   
  07/30/2012      77 FR 44544      Proposed Approval      Clean Data Determination/Attainment Determination   
  01/07/2013      78 FR 885      Final Approval      Clean Data Determination/Attainment Determination   
  11/21/2019      84 FR 64245      Proposed Approval      Redesignation to Maintenance   
  02/25/2020      85 FR 10989      Final Approval      Redesignation to Maintenance   
SALT LAKE COUNTY, UT
  09/21/2000      65 FR 57127      Proposed Approval      Failure to Attain by Attainment Date   
  09/21/2000      65 FR 57127      Proposed Approval      Clean Data Determination/Attainment Determination   
  09/21/2000      65 FR 57127      Proposed Approval      Attainment Date Extension   
  06/18/2001      66 FR 32752      Final Approval      Clean Data Determination/Attainment Determination   
  06/18/2001      66 FR 32752      Final Approval      Attainment Date Extension   
  12/01/2009      74 FR 62717      Proposed Disapproval      Redesignation to Maintenance   
  11/21/2019      84 FR 64245      Proposed Approval      Redesignation to Maintenance   
  02/25/2020      85 FR 10989      Final Approval      Redesignation to Maintenance   
UTAH COUNTY, UT
  09/21/2000      65 FR 57127      Proposed Approval      Failure to Attain by Attainment Date   
  09/21/2000      65 FR 57127      Proposed Approval      Clean Data Determination/Attainment Determination   
  09/21/2000      65 FR 57127      Proposed Approval      Attainment Date Extension   
  06/18/2001      66 FR 32752      Final Approval      Clean Data Determination/Attainment Determination   
  06/18/2001      66 FR 32752      Final Approval      Attainment Date Extension   
  11/21/2019      84 FR 64245      Proposed Approval      Redesignation to Maintenance   
  02/25/2020      85 FR 10989      Final Approval      Redesignation to Maintenance   
WASHINGTON
KING COUNTY; KENT, WA
  03/13/2001      66 FR 14512      Proposed Approval      Redesignation to Maintenance   
  03/13/2001      66 FR 14492      Direct Final      Redesignation to Maintenance   
KING COUNTY; SEATTLE, WA
  03/13/2001      66 FR 14512      Proposed Approval      Redesignation to Maintenance   
  03/13/2001      66 FR 14492      Direct Final      Redesignation to Maintenance   
PIERCE COUNTY; TACOMA, WA
  03/13/2001      66 FR 14512      Proposed Approval      Redesignation to Maintenance   
  03/13/2001      66 FR 14492      Direct Final      Redesignation to Maintenance   
SPOKANE COUNTY, WA
  05/16/2001      66 FR 27055      Proposed Approval      Clean Data Determination/Attainment Determination   
  07/01/2005      70 FR 38073      Proposed Approval      Redesignation to Maintenance   
  07/01/2005      70 FR 38029      Direct Final      Redesignation to Maintenance   
THURSTON COUNTY; CITIES OF OLYMPIA, TUMWATER, AND LACEY, WA
  10/04/2000      65 FR 59154      Proposed Approval      Redesignation to Maintenance   
  10/04/2000      65 FR 59128      Direct Final      Redesignation to Maintenance   
WALLA WALLA COUNTY; WALLULA, WA
  11/16/2000      65 FR 69275      Proposed Approval      Change to a Higher Classification (Bump-Ups)   
  12/12/2000      65 FR 77544      Proposed Approval      Change to a Higher Classification (Bump-Ups)   
  02/09/2001      66 FR 9663      Direct Final      Change to a Higher Classification (Bump-Ups)   
  07/01/2005      70 FR 38073      Proposed Approval      Redesignation to Maintenance   
  08/26/2005      70 FR 50212      Final Approval      Redesignation to Maintenance   
YAKIMA COUNTY, WA
  11/29/2004      69 FR 69338      Proposed Approval      Boundary Change   
  11/29/2004      69 FR 69342      Proposed Approval      Redesignation to Maintenance   
  02/07/2005      70 FR 6361      Final Approval      Boundary Change   
  02/08/2005      70 FR 6591      Final Approval      Redesignation to Maintenance   
WEST VIRGINIA
BROOKE; FOLLANSBEE AREA, WV
  08/27/2003      68 FR 51544      Proposed Approval      Redesignation to Maintenance   
  08/27/2003      68 FR 51459      Direct Final      Redesignation to Maintenance   
HANCOCK AND BROOKE COUNTIES (PART); THE CITY OF WEIRTON, WV
  12/21/1993      58 FR 67334      Final Approval      Designation to Nonattainment   
  10/27/2004      69 FR 62637      Proposed Approval      Redesignation to Maintenance   
  10/27/2004      69 FR 62591      Direct Final      Redesignation to Maintenance   
  11/09/2004      69 FR 64860      Direct Final      Correction/Clarification   
  12/20/2004      69 FR 75847      Withdrawal      Redesignation to Maintenance   
  05/11/2006      71 FR 27440      Proposed Approval      Redesignation to Maintenance   
  07/14/2006      71 FR 40023      Final Approval      Redesignation to Maintenance   
WYOMING
SHERIDAN COUNTY; CITY OF SHERIDAN, WY
  01/29/2018      83 FR 4015      Proposed Approval      Redesignation to Maintenance   
  04/04/2018      83 FR 14373      Final Approval      Redesignation to Maintenance