Green Book

You are here: EPA Home > Green Book > Federal Register Notices Related to PM-10 (1987) Designations and Classifications

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

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

Click on the 'FR' link to view the Federal Register Notice
AJO (PIMA COUNTY), 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   
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   
BOISE-NORTHERN ADA COUNTY, 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   
BONNER CO (SANDPOINT), 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   
CANON CITY, CO
COLORADO
  05/30/2000      65 FR 34427   Proposed Approval   Redesignation to Maintenance   
  05/30/2000      65 FR 34399   Direct Final   Redesignation to Maintenance   
CLAIRTON & 4 BOROUGHS, PA
PENNSYLVANIA
  07/18/2003      68 FR 42657   Proposed Approval   Redesignation to Maintenance   
  09/11/2003      68 FR 53515   Final Approval   Redesignation to Maintenance   
CLARK CO, 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   
COACHELLA VALLEY, 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   
COLUMBIA FALLS, 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   
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 CO, OH
OHIO
  07/10/2000      65 FR 42312   Proposed Approval   Redesignation to Maintenance   
  12/11/2000      65 FR 77308   Final Approval   Redesignation to Maintenance   
DENVER METRO, CO
COLORADO
  05/23/2002      67 FR 36124   Proposed Approval   Redesignation to Maintenance   
  09/16/2002      67 FR 58335   Final Approval   Redesignation to Maintenance   
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   
EAST CHICAGO, IN
INDIANA
  01/10/2003      68 FR 1414   Proposed Approval   Redesignation to Maintenance   
  01/10/2003      68 FR 1370   Direct Final   Redesignation to Maintenance   
EAST KERN CO, CA
CALIFORNIA
  11/12/2008      73 FR 66759   Final Approval   Area Split   
  03/21/2011      76 FR 15219   Final Approval   Technical Amendment   
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   
FLATHEAD COUNTY; WHITEFISH AND VICINITY, MT
MONTANA
  10/19/1993      58 FR 53886   Final Approval   Designation to Nonattainment   
FOLLANSBEE, 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   
FORT HALL INDIAN RESERVATION
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   
GRANITE CITY, NAMEOKI TWSP, IL
ILLINOIS
  03/11/1998      63 FR 11865   Proposed Approval   Redesignation to Maintenance   
  03/11/1998      63 FR 11842   Direct Final   Redesignation to Maintenance   
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   
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   
JEFFERSON CO, OH
OHIO
  07/10/2000      65 FR 42312   Proposed Approval   Redesignation to Maintenance   
  12/11/2000      65 FR 77308   Final Approval   Redesignation to Maintenance   
JUNEAU, 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   
KALISPELL, MT
MONTANA
  03/20/2020      85 FR 16029   Proposed Approval   Redesignation to Maintenance   
  06/26/2020      85 FR 38327   Final Approval   Redesignation to Maintenance   
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 CO, 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   
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   
LAKE CO, 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   
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   
LANE CO, 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   
LIBBY, 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   
LOS ANGELES 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   
LYONS TWSP., IL
ILLINOIS
  09/22/2005      70 FR 55610   Proposed Approval   Redesignation to Maintenance   
  09/22/2005      70 FR 55541   Direct Final   Redesignation to Maintenance   
MAMMOTH LAKE, CA
CALIFORNIA
  07/30/2015      80 FR 45477   Proposed Approval   Redesignation to Maintenance   
  10/05/2015      80 FR 60049   Final Approval   Redesignation to Maintenance   
MEDFORD-ASHLAND, OR
OREGON
  06/19/2006      71 FR 35233   Proposed Approval   Redesignation to Maintenance   
  06/19/2006      71 FR 35163   Direct Final   Redesignation to Maintenance   
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 CO, 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   
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 CO, 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 CO, 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   
NOGALES, 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   
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   
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   
OLMSTED CO, MN
MINNESOTA
  05/31/1995      60 FR 28377   Proposed Approval   Redesignation to Maintenance   
  05/31/1995      60 FR 28339   Direct Final   Redesignation to Maintenance   
OLYMPIA, TUMWATER, 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   
OWENS VALLEY, 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   
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   
PAUL SPUR/DOUGLAS (COCHISE COUNTY), 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   
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   
PHOENIX, 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   
PIERCE CO, WA
WASHINGTON
  03/13/2001      66 FR 14512   Proposed Approval   Redesignation to Maintenance   
  03/13/2001      66 FR 14492   Direct Final   Redesignation to Maintenance   
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   
PORTNEUF VALLEY, 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   
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   
RAMSEY CO, MN
MINNESOTA
  07/26/2002      67 FR 48839   Proposed Approval   Redesignation to Maintenance   
  07/26/2002      67 FR 48787   Direct Final   Redesignation to Maintenance   
RILLITO, 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   
SACRAMENTO CO, 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 CO, 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 CO, 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   
SANDERS COUNTY (PART); THOMPSON FALLS AND VICINITY, MT
MONTANA
  12/21/1993      58 FR 67334   Final Approval   Designation to Nonattainment   
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 CO, 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   
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   
SPOKANE CO, 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   
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   
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   
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   
UTAH CO, 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 CO, IN
INDIANA
  08/26/1997      62 FR 45199   Proposed Approval   Redesignation to Maintenance   
  08/26/1997      62 FR 45168   Direct Final   Redesignation to Maintenance   
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 CO, 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 CO, MI
MICHIGAN
  08/05/1996      61 FR 40592   Proposed Approval   Redesignation to Maintenance   
  08/05/1996      61 FR 40516   Direct Final   Redesignation to Maintenance   
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   
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   
YAKIMA CO, 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