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

Data is current as of August 31, 2022
Ordered by Area Name

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ADA COUNTY; BOISE, ID
IDAHO
  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   
ADAMS, DENVER, AND BOULDER COUNTIES; DENVER METROPOLITAN AREA, CO
COLORADO
  05/23/2002      67 FR 36124   Proposed Approval   Redesignation to Maintenance   
  09/16/2002      67 FR 58335   Final Approval   Redesignation to Maintenance   
ALLEGHENY COUNTY; LIBERTY, LINCOLN, PORT VUE, GLASSPORT, CLAIRTON, PA
PENNSYLVANIA
  07/18/2003      68 FR 42657   Proposed Approval   Redesignation to Maintenance   
  09/11/2003      68 FR 53515   Final Approval   Redesignation to Maintenance   
ANCHORAGE; EAGLE RIVER, AK
ALASKA
  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   
ARCHULETA COUNTY; PAGOSA SPRINGS, CO
COLORADO
  06/15/2001      66 FR 32594   Proposed Approval   Redesignation to Maintenance   
  06/15/2001      66 FR 32556   Direct Final   Redesignation to Maintenance   
AROOSTOCK COUNTY; CITY OF PRESQUE ISLE, ME
MAINE
  08/30/1995      60 FR 45113   Proposed Approval   Redesignation to Maintenance   
  08/30/1995      60 FR 45056   Direct Final   Redesignation to Maintenance   
BONNER COUNTY; THE SANDPOINT AREA, ID
IDAHO
  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   
BROOKE; FOLLANSBEE AREA, WV
WEST VIRGINIA
  08/27/2003      68 FR 51544   Proposed Approval   Redesignation to Maintenance   
  08/27/2003      68 FR 51459   Direct Final   Redesignation to Maintenance   
CLARK COUNTY; LAS VEGAS PLANNING AREA, NV
NEVADA
  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   
COCHISE COUNTY; PAUL SPUR/DOUGLAS PLANNING AREA, AZ
ARIZONA
  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   
COOK COUNTY; LYONS TOWNSHIP, IL
ILLINOIS
  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
ILLINOIS
  09/22/2005      70 FR 55611   Proposed Approval   Redesignation to Maintenance   
  09/22/2005      70 FR 55545   Direct Final   Redesignation to Maintenance   
COSO JUNCTION, CA
CALIFORNIA
  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   
CUYAHOGA COUNTY, OH
OHIO
  07/10/2000      65 FR 42312   Proposed Approval   Redesignation to Maintenance   
  12/11/2000      65 FR 77308   Final Approval   Redesignation to Maintenance   
EAST KERN COUNTY, CA
CALIFORNIA
  11/12/2008      73 FR 66759   Final Approval   Area Split   
  03/21/2011      76 FR 15219   Final Approval   Technical Amendment   
FLATHEAD COUNTY; COLUMBIA FALLS AND VICINITY, MT
MONTANA
  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
MONTANA
  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
MONTANA
  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   
FREMONT COUNTY; CANON CITY AREA, CO
COLORADO
  05/30/2000      65 FR 34427   Proposed Approval   Redesignation to Maintenance   
  05/30/2000      65 FR 34399   Direct Final   Redesignation to Maintenance   
GILA COUNTY (PART): PAYSON, AZ
ARIZONA
  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   
HANCOCK AND BROOKE COUNTIES (PART); THE CITY OF WEIRTON, WV
WEST VIRGINIA
  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   
HAYDEN, AZ
ARIZONA
  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   
IMPERIAL VALLEY, CA
CALIFORNIA
  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
CALIFORNIA
  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
CALIFORNIA
  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   
JACKSON COUNTY; MEDFORD-ASHLAND (INCLUDING WHITE CITY), OR
OREGON
  06/19/2006      71 FR 35233   Proposed Approval   Redesignation to Maintenance   
  06/19/2006      71 FR 35163   Direct Final   Redesignation to Maintenance   
JEFFERSON COUNTY, OH
OHIO
  07/10/2000      65 FR 42312   Proposed Approval   Redesignation to Maintenance   
  12/11/2000      65 FR 77308   Final Approval   Redesignation to Maintenance   
JOSEPHINE COUNTY; GRANTS PASS, OR
OREGON
  10/27/2003      68 FR 61178   Proposed Approval   Redesignation to Maintenance   
  10/27/2003      68 FR 61111   Direct Final   Redesignation to Maintenance   
JUNEAU; MENDENHALL VALLEY AREA, AK
ALASKA
  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   
KING COUNTY; KENT, WA
WASHINGTON
  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
WASHINGTON
  03/13/2001      66 FR 14512   Proposed Approval   Redesignation to Maintenance   
  03/13/2001      66 FR 14492   Direct Final   Redesignation to Maintenance   
KLAMATH FALLS, OR
OREGON
  10/21/2003      68 FR 60060   Proposed Approval   Redesignation to Maintenance   
  10/21/2003      68 FR 60036   Direct Final   Redesignation to Maintenance   
LASALLE COUNTY; OGLESBY, IL
ILLINOIS
  08/08/1996      61 FR 41372   Proposed Approval   Redesignation to Maintenance   
  08/08/1996      61 FR 41342   Direct Final   Redesignation to Maintenance   
LAKE COUNTY (PART); LAKEVIEW, OR
OREGON
  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   
LAKE COUNTY; CITIES OF EAST CHICAGO, HAMMOND, WHITING, AND GARY, IN
INDIANA
  01/10/2003      68 FR 1414   Proposed Approval   Redesignation to Maintenance   
  01/10/2003      68 FR 1370   Direct Final   Redesignation to Maintenance   
LANE COUNTY (PART); OAKRIDGE, OR
OREGON
  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
OREGON
  04/11/2013      78 FR 21583   Proposed Approval   Redesignation to Maintenance   
  04/11/2013      78 FR 21547   Direct Final   Redesignation to Maintenance   
LINCOLN COUNTY; LIBBY AND VICINITY, MT
MONTANA
  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   
MADISON COUNTY; GRANITE CITY TOWNSHIP AND NAMEOKI TOWNSHIP, IL
ILLINOIS
  03/11/1998      63 FR 11865   Proposed Approval   Redesignation to Maintenance   
  03/11/1998      63 FR 11842   Direct Final   Redesignation to Maintenance   
MARICOPA AND PINAL COUNTIES; PHOENIX PLANNING AREA, AZ
ARIZONA
  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
ARIZONA
  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   
MISSOULA, MT
MONTANA
  03/05/2019      84 FR 7846   Proposed Approval   Redesignation to Maintenance   
  05/24/2019      84 FR 24037   Final Approval   Redesignation to Maintenance   
MOHAVE COUNTY (PART); BULLHEAD CITY, AZ
ARIZONA
  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   
MONO BASIN, CA
CALIFORNIA
  11/29/1993      58 FR 62544   Final Approval   Designation to Nonattainment   
MONO COUNTY; MAMMOTH LAKE PLANNING AREA, CA
CALIFORNIA
  07/30/2015      80 FR 45477   Proposed Approval   Redesignation to Maintenance   
  10/05/2015      80 FR 60049   Final Approval   Redesignation to Maintenance   
MUN. OF GUAYNABO, PR
PUERTO RICO
  09/02/2009      74 FR 45387   Proposed Approval   Redesignation to Maintenance   
  01/12/2010      75 FR 1543   Final Approval   Redesignation to Maintenance   
NEW HAVEN COUNTY, CT
CONNECTICUT
  10/13/2005      70 FR 59690   Proposed Approval   Redesignation to Maintenance   
  10/13/2005      70 FR 59657   Direct Final   Redesignation to Maintenance   
NEW YORK COUNTY, NY
NEW YORK
  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   
OGDEN, UT
UTAH
  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   
OLMSTED COUNTY, MN
MINNESOTA
  05/31/1995      60 FR 28377   Proposed Approval   Redesignation to Maintenance   
  05/31/1995      60 FR 28339   Direct Final   Redesignation to Maintenance   
PIERCE COUNTY; TACOMA, WA
WASHINGTON
  03/13/2001      66 FR 14512   Proposed Approval   Redesignation to Maintenance   
  03/13/2001      66 FR 14492   Direct Final   Redesignation to Maintenance   
PIMA COUNTY; AJO PLANNING AREA, AZ
ARIZONA
  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
ARIZONA
  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
ARIZONA
  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   
PITKIN COUNTY; ASPEN, CO
COLORADO
  05/15/2003      68 FR 26248   Proposed Approval   Redesignation to Maintenance   
  05/15/2003      68 FR 26212   Direct Final   Redesignation to Maintenance   
POWER-BANNOCK COUNTIES; FORT HALL INDIAN RESERVATION, ID
IDAHO
  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
IDAHO
  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   
PROWERS COUNTY; LAMAR, CO
COLORADO
  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   
RAMSEY COUNTY, MN
MINNESOTA
  07/26/2002      67 FR 48839   Proposed Approval   Redesignation to Maintenance   
  07/26/2002      67 FR 48787   Direct Final   Redesignation to Maintenance   
RIVERSIDE COUNTY; COACHELLA VALLEY PLANNING AREA, CA
CALIFORNIA
  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
CALIFORNIA
  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   
ROUTT COUNTY (PART); STEAMBOAT SPRINGS, CO
COLORADO
  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   
SACRAMENTO COUNTY, CA
CALIFORNIA
  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   
SALT LAKE COUNTY, UT
UTAH
  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   
SAN BERNARDINO COUNTY, CA
CALIFORNIA
  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
CALIFORNIA
  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   
SAN MIGUEL COUNTY; TELLURIDE, CO
COLORADO
  06/15/2001      66 FR 32594   Proposed Approval   Redesignation to Maintenance   
  06/15/2001      66 FR 32556   Direct Final   Redesignation to Maintenance   
SANDERS COUNTY (PART); THOMPSON FALLS AND VICINITY, MT
MONTANA
  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   
SANTA CRUZ COUNTY; NOGALES PLANNING AREA, AZ
ARIZONA
  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   
SHERIDAN COUNTY; CITY OF SHERIDAN, WY
WYOMING
  01/29/2018      83 FR 4015   Proposed Approval   Redesignation to Maintenance   
  04/04/2018      83 FR 14373   Final Approval   Redesignation to Maintenance   
SHOSHONE COUNTY; CITY OF PINEHURST, ID
IDAHO
  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
IDAHO
  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   
SILVER BOW COUNTY; BUTTE, MT
MONTANA
  04/19/2021      86 FR 20353   Proposed Approval   Redesignation to Maintenance   
  06/25/2021      86 FR 33547   Final Approval   Redesignation to Maintenance   
SPOKANE COUNTY, WA
WASHINGTON
  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
WASHINGTON
  10/04/2000      65 FR 59154   Proposed Approval   Redesignation to Maintenance   
  10/04/2000      65 FR 59128   Direct Final   Redesignation to Maintenance   
TRONA, CA
CALIFORNIA
  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   
UNION COUNTY; LAGRANDE, OR
OREGON
  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   
UTAH COUNTY, UT
UTAH
  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   
VERMILLION COUNTY; PART OF CLINTON TOWNSHIP, IN
INDIANA
  08/26/1997      62 FR 45199   Proposed Approval   Redesignation to Maintenance   
  08/26/1997      62 FR 45168   Direct Final   Redesignation to Maintenance   
WALLA WALLA COUNTY; WALLULA, WA
WASHINGTON
  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   
WASHOE COUNTY; RENO PLANNING AREA, NV
NEVADA
  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   
WAYNE COUNTY, MI
MICHIGAN
  08/05/1996      61 FR 40592   Proposed Approval   Redesignation to Maintenance   
  08/05/1996      61 FR 40516   Direct Final   Redesignation to Maintenance   
YAKIMA COUNTY, WA
WASHINGTON
  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   
YUMA, AZ
ARIZONA
  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