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

Data is current as of June 30, 2021
Ordered by Area Name

Click on the 'FR' link to view the Federal Register Notice

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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
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
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
06/01/2021	86 FR 29219	Proposed Approval	Clean Data Determination Rescission