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

Ordered Chronologically in Descending Order
As of July 31, 2009
Last Notice

11/12/2008 East Kern Co, CA CALIFORNIA 73 FR Page 66759 Final Approval Area Split
11/12/2008 San Joaquin Valley Air Basin, CA CALIFORNIA 73 FR Page 66759 Final Approval Area Split
11/12/2008 San Joaquin Valley Air Basin, CA CALIFORNIA 73 FR Page 66759 Final Approval Redesignation to Maintenance
08/14/2008 Phoenix, AZ ARIZONA 73 FR Page 47542 Final Approval Attainment Date Extension
05/23/2008 San Joaquin Valley Air Basin, CA CALIFORNIA 73 FR Page 30029 Proposed Approval Extension of Comment Period
04/25/2008 San Joaquin Valley Air Basin, CA CALIFORNIA 73 FR Page 22307 Proposed Approval Area Split
04/25/2008 San Joaquin Valley Air Basin, CA CALIFORNIA 73 FR Page 22307 Proposed Approval Redesignation to Maintenance
03/19/2008 San Joaquin Valley Air Basin, CA CALIFORNIA 73 FR Page 14687 Final Approval Clean Air/Attainment Determination
12/11/2007 Imperial Valley, CA CALIFORNIA 72 FR Page 70222 Final Approval Failure to Attain
08/27/2007 San Joaquin Valley Air Basin, CA CALIFORNIA 72 FR Page 49045 Proposed Approval Clean Air/Attainment Determination
06/06/2007 Owens Valley, CA CALIFORNIA 72 FR Page 31183 Final Approval Failure to Attain
06/06/2007 Phoenix, AZ ARIZONA 72 FR Page 31183 Final Approval Failure to Attain
03/28/2007 Hayden AZ ARIZONA 72 FR Page 14502 Proposed Approval Area Split
03/28/2007 Hayden AZ ARIZONA 72 FR Page 14422 Direct Final Area Split
03/28/2007 Miami, AZ ARIZONA 72 FR Page 14502 Proposed Approval Area Split
03/28/2007 Miami, AZ ARIZONA 72 FR Page 14502 Proposed Approval Clean Air/Attainment Determination
03/28/2007 Miami, AZ ARIZONA 72 FR Page 14422 Direct Final Area Split
03/28/2007 Miami, AZ ARIZONA 72 FR Page 14422 Direct Final Clean Air/Attainment Determination
03/23/2007 Owens Valley, CA CALIFORNIA 72 FR Page 13723 Proposed Approval Failure to Attain
03/23/2007 Phoenix, AZ ARIZONA 72 FR Page 13723 Proposed Approval Failure to Attain
10/30/2006 San Joaquin Valley Air Basin, CA CALIFORNIA 71 FR Page 63641 Final Approval Clean Air/Attainment Determination
08/08/2006 Rillito, AZ ARIZONA 71 FR Page 44944 Proposed Approval Clean Air/Attainment Determination
08/08/2006 Rillito, AZ ARIZONA 71 FR Page 44920 Direct Final Clean Air/Attainment Determination
08/03/2006 Phoenix, AZ ARIZONA 71 FR Page 43979 Final Approval Attainment Date Extension
07/19/2006 San Joaquin Valley Air Basin, CA CALIFORNIA 71 FR Page 40952 Proposed Approval Clean Air/Attainment Determination
07/14/2006 Weirton, WV WEST VIRGINIA 71 FR Page 40023 Final Approval Redesignation to Maintenance
07/13/2006 Portneuf Valley, ID IDAHO 71 FR Page 39574 Final Approval Redesignation to Maintenance
06/19/2006 LaGrande, OR OREGON 71 FR Page 35161 Final Approval Redesignation to Maintenance
06/19/2006 Lake Co, OR OREGON 71 FR Page 35159 Final Approval Redesignation to Maintenance
06/19/2006 Medford-Ashland, OR OREGON 71 FR Page 35233 Proposed Approval Redesignation to Maintenance
06/19/2006 Medford-Ashland, OR OREGON 71 FR Page 35163 Direct Final Redesignation to Maintenance
05/18/2006 LaGrande, OR OREGON 71 FR Page 28777b Withdrawal Redesignation to Maintenance
05/18/2006 Lake Co, OR OREGON 71 FR Page 28777 Withdrawal Redesignation to Maintenance
05/11/2006 Weirton, WV WEST VIRGINIA 71 FR Page 27440 Proposed Approval Redesignation to Maintenance
03/22/2006 LaGrande, OR OREGON 71 FR Page 14438a Proposed Approval Redesignation to Maintenance
03/22/2006 LaGrande, OR OREGON 71 FR Page 14393 Direct Final Redesignation to Maintenance
03/22/2006 Lake Co, OR OREGON 71 FR Page 14438b Proposed Approval Redesignation to Maintenance
03/22/2006 Lake Co, OR OREGON 71 FR Page 14399 Direct Final Redesignation to Maintenance
03/14/2006 Yuma, AZ ARIZONA 71 FR Page 13063 Proposed Approval Clean Air/Attainment Determination
03/14/2006 Yuma, AZ ARIZONA 71 FR Page 13021 Direct Final Clean Air/Attainment Determination
02/08/2006 Ajo (Pima County), AZ ARIZONA 71 FR Page 6437 Proposed Approval Clean Air/Attainment Determination
02/08/2006 Ajo (Pima County), AZ ARIZONA 71 FR Page 6352 Direct Final Clean Air/Attainment Determination
12/06/2005 Lamar, CO COLORADO 70 FR Page 72597 Final Approval Correction
10/25/2005 Lamar, CO COLORADO 70 FR Page 61563 Direct Final Redesignation to Maintenance
10/13/2005 New Haven Co, CT CONNECTICUT 70 FR Page 59690 Proposed Approval Redesignation to Maintenance
10/13/2005 New Haven Co, CT CONNECTICUT 70 FR Page 59657 Direct Final Redesignation to Maintenance
09/22/2005 Lyons Twsp., IL ILLINOIS 70 FR Page 55610 Proposed Approval Redesignation to Maintenance
09/22/2005 Lyons Twsp., IL ILLINOIS 70 FR Page 55541 Direct Final Redesignation to Maintenance
09/22/2005 Southeast Chicago, IL ILLINOIS 70 FR Page 55611 Proposed Approval Redesignation to Maintenance
09/22/2005 Southeast Chicago, IL ILLINOIS 70 FR Page 55545 Direct Final Redesignation to Maintenance
08/26/2005 Wallula, WA WASHINGTON 70 FR Page 50212 Final Approval Redesignation to Maintenance
07/01/2005 Phoenix, AZ ARIZONA 70 FR Page 38064 Proposed Approval Attainment Date Extension
07/01/2005 Spokane Co, WA WASHINGTON 70 FR Page 38073a Proposed Approval Redesignation to Maintenance
07/01/2005 Spokane Co, WA WASHINGTON 70 FR Page 38029 Direct Final Redesignation to Maintenance
07/01/2005 Wallula, WA WASHINGTON 70 FR Page 38073 Proposed Approval Redesignation to Maintenance
05/20/2005 Portneuf Valley, ID IDAHO 70 FR Page 29243 Proposed Approval Redesignation to Maintenance
03/10/2005 Phoenix, AZ ARIZONA 70 FR Page 11882 Final Approval Boundary Change
02/08/2005 Yakima Co, WA WASHINGTON 70 FR Page 6591 Final Approval Redesignation to Maintenance
02/07/2005 Yakima Co, WA WASHINGTON 70 FR Page 6361 Final Approval Boundary Change
12/20/2004 Weirton, WV WEST VIRGINIA 69 FR Page 75847 Withdrawal Redesignation to Maintenance
11/29/2004 Yakima Co, WA WASHINGTON 69 FR Page 69338 Proposed Approval Boundary Change
11/29/2004 Yakima Co, WA WASHINGTON 69 FR Page 69342 Proposed Approval Redesignation to Maintenance
11/09/2004 Weirton, WV WEST VIRGINIA 69 FR Page 64860 Direct Final Correction
10/27/2004 Weirton, WV WEST VIRGINIA 69 FR Page 62637 Proposed Approval Redesignation to Maintenance
10/27/2004 Weirton, WV WEST VIRGINIA 69 FR Page 62591 Direct Final Redesignation to Maintenance
10/25/2004 Steamboat Springs, CO COLORADO 69 FR Page 62210 Final Approval Redesignation to Maintenance
10/10/2004 Phoenix, AZ ARIZONA 99 FR Page 72424 Court-Order Attainment Date Extension
09/20/2004 Lamar, CO COLORADO 69 FR Page 56163 Withdrawal Redesignation to Maintenance
09/20/2004 Steamboat Springs, CO COLORADO 69 FR Page 56163 Withdrawal Redesignation to Maintenance
08/20/2004 Imperial Valley, CA CALIFORNIA 69 FR Page 51753 Final Approval Correction
08/11/2004 Imperial Valley, CA CALIFORNIA 69 FR Page 48835 Proposed Approval Change to a Higher Classification (Bump-Ups)
08/11/2004 Imperial Valley, CA CALIFORNIA 69 FR Page 48792 Final Approval Change to a Higher Classification (Bump-Ups)
08/05/2004 Lamar, CO COLORADO 69 FR Page 47399 Proposed Approval Redesignation to Maintenance
08/05/2004 Lamar, CO COLORADO 69 FR Page 47366 Direct Final Redesignation to Maintenance
08/05/2004 Steamboat Springs, CO COLORADO 69 FR Page 47399 Proposed Approval Redesignation to Maintenance
08/05/2004 Steamboat Springs, CO COLORADO 69 FR Page 47366 Direct Final Redesignation to Maintenance
06/09/2004 Clark Co, NV NEVADA 69 FR Page 32273 Final Approval Attainment Date Extension
12/18/2003 Imperial Valley, CA CALIFORNIA 99 FR Page 71902b Court-Order Change to a Higher Classification (Bump-Ups)
10/27/2003 Boise-Northern Ada County, ID IDAHO 68 FR Page 61106 Final Approval Redesignation to Maintenance
10/27/2003 Boise-Northern Ada County, ID IDAHO 68 FR Page 61106 Final Approval Designation Reinstatement
10/27/2003 Grants Pass, OR OREGON 68 FR Page 61178 Proposed Approval Redesignation to Maintenance
10/27/2003 Grants Pass, OR OREGON 68 FR Page 61111 Direct Final Redesignation to Maintenance
10/21/2003 Klamath Falls, OR OREGON 68 FR Page 60060 Proposed Approval Redesignation to Maintenance
10/21/2003 Klamath Falls, OR OREGON 68 FR Page 60036 Direct Final Redesignation to Maintenance
10/09/2003 Imperial Valley, CA CALIFORNIA 99 FR Page 71902a Court-Order Change to a Higher Classification (Bump-Ups)
10/07/2003 Coachella Valley, CA CALIFORNIA 68 FR Page 57820 Final Approval Boundary Change
10/07/2003 Los Angeles South Coast Air Basin, CALIFORNIA 68 FR Page 57820 Final Approval Boundary Change
09/11/2003 Clairton & 4 Boroughs, PA PENNSYLVANIA 68 FR Page 53515 Final Approval Redesignation to Maintenance
08/27/2003 Follansbee, WV WEST VIRGINIA 68 FR Page 51544 Proposed Approval Redesignation to Maintenance
08/27/2003 Follansbee, WV WEST VIRGINIA 68 FR Page 51459 Direct Final Redesignation to Maintenance
08/15/2003 Coachella Valley, CA CALIFORNIA 68 FR Page 48848 Proposed Approval Boundary Change
08/15/2003 Los Angeles South Coast Air Basin, CALIFORNIA 68 FR Page 48848 Proposed Approval Boundary Change
07/30/2003 Boise-Northern Ada County, ID IDAHO 68 FR Page 44715 Proposed Approval Redesignation to Maintenance
07/30/2003 Boise-Northern Ada County, ID IDAHO 68 FR Page 44715 Proposed Approval Designation Reinstatement
07/18/2003 Clairton & 4 Boroughs, PA PENNSYLVANIA 68 FR Page 42657 Proposed Approval Redesignation to Maintenance
06/23/2003 Indian Wells, CA CALIFORNIA 68 FR Page 37090 Final Approval Correction
06/23/2003 Trona, CA CALIFORNIA 68 FR Page 37090 Final Approval Correction
05/15/2003 Aspen, CO COLORADO 68 FR Page 26248 Proposed Approval Redesignation to Maintenance
05/15/2003 Aspen, CO COLORADO 68 FR Page 26212 Direct Final Redesignation to Maintenance
05/07/2003 Indian Wells, CA CALIFORNIA 68 FR Page 24368 Final Approval Redesignation to Maintenance
04/18/2003 Coachella Valley, CA CALIFORNIA 68 FR Page 19318 Final Approval Attainment Date Extension
04/18/2003 Los Angeles South Coast Air Basin, CALIFORNIA 68 FR Page 19315 Final Approval Attainment Date Extension
02/12/2003 Shoshone Co, ID IDAHO 68 FR Page 7174 Final Approval Correction
01/22/2003 Clark Co, NV NEVADA 68 FR Page 2954 Proposed Approval Attainment Date Extension
01/10/2003 East Chicago, IN INDIANA 68 FR Page 1414 Proposed Approval Redesignation to Maintenance
01/10/2003 East Chicago, IN INDIANA 68 FR Page 1370 Direct Final Redesignation to Maintenance
12/17/2002 Coachella Valley, CA CALIFORNIA 67 FR Page 77204 Proposed Approval Attainment Date Extension
12/17/2002 Indian Wells, CA CALIFORNIA 67 FR Page 77196 Proposed Approval Redesignation to Maintenance
12/17/2002 Los Angeles South Coast Air Basin, CALIFORNIA 67 FR Page 77212 Proposed Approval Attainment Date Extension
09/19/2002 Coso Junction, CA CALIFORNIA 67 FR Page 59005 Final Approval Correction
09/19/2002 Indian Wells, CA CALIFORNIA 67 FR Page 59005 Final Approval Correction
09/19/2002 Trona, CA CALIFORNIA 67 FR Page 59005 Final Approval Correction
09/16/2002 Denver Metro, CO COLORADO 67 FR Page 58335 Final Approval Redesignation to Maintenance
08/06/2002 Coso Junction, CA CALIFORNIA 67 FR Page 50805 Final Approval Area Split
08/06/2002 Indian Wells, CA CALIFORNIA 67 FR Page 50805 Final Approval Area Split
08/06/2002 Trona, CA CALIFORNIA 67 FR Page 50805 Final Approval Area Split
07/26/2002 Ramsey Co, MN MINNESOTA 67 FR Page 48839 Proposed Approval Redesignation to Maintenance
07/26/2002 Ramsey Co, MN MINNESOTA 67 FR Page 48787 Direct Final Redesignation to Maintenance
07/25/2002 Phoenix, AZ ARIZONA 67 FR Page 48717 Final Approval Attainment Date Extension
06/26/2002 Mohave Co, AZ ARIZONA 67 FR Page 43073 Proposed Approval Redesignation to Maintenance
06/26/2002 Mohave Co, AZ ARIZONA 67 FR Page 43020 Direct Final Redesignation to Maintenance
06/26/2002 Payson, AZ ARIZONA 67 FR Page 43072 Proposed Approval Redesignation to Maintenance
06/26/2002 Payson, AZ ARIZONA 67 FR Page 43013 Direct Final Redesignation to Maintenance
05/23/2002 Denver Metro, CO COLORADO 67 FR Page 36124 Proposed Approval Redesignation to Maintenance
10/02/2001 Phoenix, AZ ARIZONA 66 FR Page 50251 Proposed Approval Attainment Date Extension
08/10/2001 Imperial Valley, CA CALIFORNIA 66 FR Page 42187 Proposed Approval Change to a Higher Classification (Bump-Ups)
06/18/2001 Salt Lake Co, UT UTAH 66 FR Page 32752 Final Approval Attainment Date Extension
06/18/2001 Utah Co, UT UTAH 66 FR Page 32752 Final Approval Attainment Date Extension
06/15/2001 Pagosa Springs, CO COLORADO 66 FR Page 32594 Proposed Approval Redesignation to Maintenance
06/15/2001 Pagosa Springs, CO COLORADO 66 FR Page 32556 Direct Final Redesignation to Maintenance
06/15/2001 Telluride, CO COLORADO 66 FR Page 32594 Proposed Approval Redesignation to Maintenance
06/15/2001 Telluride, CO COLORADO 66 FR Page 32556 Direct Final Redesignation to Maintenance
06/13/2001 Coso Junction, CA CALIFORNIA 66 FR Page 31873 Proposed Approval Area Split
06/13/2001 Indian Wells, CA CALIFORNIA 66 FR Page 31873 Proposed Approval Area Split
06/13/2001 Trona, CA CALIFORNIA 66 FR Page 31873 Proposed Approval Area Split
05/16/2001 Spokane Co, WA WASHINGTON 66 FR Page 27055 Proposed Approval Clean Air/Attainment Determination
03/13/2001 Kent, WA WASHINGTON 66 FR Page 14512 Proposed Approval Redesignation to Maintenance
03/13/2001 Kent, WA WASHINGTON 66 FR Page 14492 Direct Final Redesignation to Maintenance
03/13/2001 King Co, WA WASHINGTON 66 FR Page 14512 Proposed Approval Redesignation to Maintenance
03/13/2001 King Co, WA WASHINGTON 66 FR Page 14492 Direct Final Redesignation to Maintenance
03/13/2001 Pierce Co, WA WASHINGTON 66 FR Page 14512 Proposed Approval Redesignation to Maintenance
03/13/2001 Pierce Co, WA WASHINGTON 66 FR Page 14492 Direct Final Redesignation to Maintenance
02/09/2001 Wallula, WA WASHINGTON 66 FR Page 9663 Direct Final Change to a Higher Classification (Bump-Ups)
01/08/2001 Washoe Co, NV NEVADA 66 FR Page 1268 Direct Final Change to a Higher Classification (Bump-Ups)
12/12/2000 Wallula, WA WASHINGTON 65 FR Page 77544 Proposed Approval Change to a Higher Classification (Bump-Ups)
12/11/2000 Cuyahoga Co, OH OHIO 65 FR Page 77308 Final Approval Redesignation to Maintenance
12/11/2000 Jefferson Co, OH OHIO 65 FR Page 77308 Final Approval Redesignation to Maintenance
12/06/2000 Portneuf Valley, ID IDAHO 65 FR Page 76203 Proposed Approval Redesignation to Maintenance
11/22/2000 Washoe Co, NV NEVADA 65 FR Page 70326 Proposed Approval Change to a Higher Classification (Bump-Ups)
11/16/2000 Wallula, WA WASHINGTON 65 FR Page 69275 Proposed Approval Change to a Higher Classification (Bump-Ups)
10/04/2000 Olympia, Tumwater, Lacey, WA WASHINGTON 65 FR Page 59154 Proposed Approval Redesignation to Maintenance
10/04/2000 Olympia, Tumwater, Lacey, WA WASHINGTON 65 FR Page 59128 Direct Final Redesignation to Maintenance
09/21/2000 Salt Lake Co, UT UTAH 65 FR Page 57127 Proposed Approval Attainment Date Extension
09/21/2000 Utah Co, UT UTAH 65 FR Page 57127 Proposed Approval Attainment Date Extension
07/10/2000 Cuyahoga Co, OH OHIO 65 FR Page 42312 Proposed Approval Redesignation to Maintenance
07/10/2000 Jefferson Co, OH OHIO 65 FR Page 42312 Proposed Approval Redesignation to Maintenance
06/26/2000 Boise-Northern Ada County, ID IDAHO 65 FR Page 39321 Proposed Approval Designation Reinstatement
05/30/2000 Canon City, CO COLORADO 65 FR Page 34427 Proposed Approval Redesignation to Maintenance
05/30/2000 Canon City, CO COLORADO 65 FR Page 34399 Direct Final Redesignation to Maintenance
04/13/2000 Phoenix, AZ ARIZONA 65 FR Page 19963 Proposed Approval Attainment Date Extension
03/12/1999 Boise-Northern Ada County, ID IDAHO 64 FR Page 12257 Final Approval Designation Revocation
11/05/1998 Fort Hall Reservation, ID IDAHO 63 FR Page 59722 Final Approval Designation to Nonattainment
11/05/1998 Portneuf Valley, ID IDAHO 63 FR Page 59722 Final Approval Correction
10/26/1998 Boise-Northern Ada County, ID IDAHO 63 FR Page 57086 Proposed Approval Designation Revocation
06/19/1998 Fort Hall Reservation, ID IDAHO 63 FR Page 33597 Proposed Approval Designation to Nonattainment
06/19/1998 Fort Hall Reservation, ID IDAHO 63 FR Page 33605 Proposed Approval Change to a Higher Classification (Bump-Ups)
06/19/1998 Portneuf Valley, ID IDAHO 63 FR Page 33597 Proposed Approval Correction
03/11/1998 Granite City, Nameoki Twsp, IL ILLINOIS 63 FR Page 11865 Proposed Approval Redesignation to Maintenance
03/11/1998 Granite City, Nameoki Twsp, IL ILLINOIS 63 FR Page 11842 Direct Final Redesignation to Maintenance
08/26/1997 Vermillion Co, IN INDIANA 62 FR Page 45199 Proposed Approval Redesignation to Maintenance
08/26/1997 Vermillion Co, IN INDIANA 62 FR Page 45168 Direct Final Redesignation to Maintenance
06/06/1997 Phoenix, AZ ARIZONA 62 FR Page 31025 Proposed Approval Redesignation to Maintenance
08/08/1996 Oglesby, IL ILLINOIS 61 FR Page 41372 Proposed Approval Redesignation to Maintenance
08/08/1996 Oglesby, IL ILLINOIS 61 FR Page 41342 Direct Final Redesignation to Maintenance
08/05/1996 Wayne Co, MI MICHIGAN 61 FR Page 40592 Proposed Approval Redesignation to Maintenance
08/05/1996 Wayne Co, MI MICHIGAN 61 FR Page 40516 Direct Final Redesignation to Maintenance
06/12/1996 Portneuf Valley, ID IDAHO 61 FR Page 29726 Proposed Approval Area Split
06/12/1996 Portneuf Valley, ID IDAHO 61 FR Page 29667 Direct Final Area Split
05/10/1996 Phoenix, AZ ARIZONA 61 FR Page 21372 Final Approval Change to a Higher Classification (Bump-Ups)
08/30/1995 Presque Isle, ME MAINE 60 FR Page 45113 Proposed Approval Redesignation to Maintenance
08/30/1995 Presque Isle, ME MAINE 60 FR Page 45056 Direct Final Redesignation to Maintenance
07/28/1995 Ogden, UT UTAH 60 FR Page 28726 Direct Final Designation to Nonattainment
06/07/1995 Phoenix, AZ ARIZONA 60 FR Page 30046 Proposed Approval Change to a Higher Classification (Bump-Ups)
05/31/1995 Olmsted Co, MN MINNESOTA 60 FR Page 28377 Proposed Approval Redesignation to Maintenance
05/31/1995 Olmsted Co, MN MINNESOTA 60 FR Page 28339 Direct Final Redesignation to Maintenance
12/21/1993 Coso Junction, CA CALIFORNIA 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Indian Wells, CA CALIFORNIA 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Lane Co, OR OREGON 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Mohave Co, AZ ARIZONA 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 New York Co, NY NEW YORK 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Payson, AZ ARIZONA 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Pinehurst, ID IDAHO 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 San Bernardino Co, CA CALIFORNIA 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Sanders County (part);Thompson Fall MONTANA 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Steamboat Springs, CO COLORADO 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Trona, CA CALIFORNIA 58 FR Page 67334 Final Approval Designation to Nonattainment
12/21/1993 Weirton, WV WEST VIRGINIA 58 FR Page 67334 Final Approval Designation to Nonattainment
11/29/1993 Mono Basin, CA CALIFORNIA 58 FR Page 62544 Final Approval Designation to Nonattainment
10/19/1993 Flathead County; Whitefish and vici MONTANA 58 FR Page 53886 Final Approval Designation to Nonattainment
09/24/1993 Lake Co, OR OREGON 58 FR Page 49931 Final Approval Designation to Nonattainment
01/08/1993 Clark Co, NV NEVADA 58 FR Page 3334 Final Approval Change to a Higher Classification (Bump-Ups)
01/08/1993 Coachella Valley, CA CALIFORNIA 58 FR Page 3334 Final Approval Change to a Higher Classification (Bump-Ups)
01/08/1993 Los Angeles South Coast Air Basin, CALIFORNIA 58 FR Page 3334 Final Approval Change to a Higher Classification (Bump-Ups)
01/08/1993 Owens Valley, CA CALIFORNIA 58 FR Page 3334 Final Approval Change to a Higher Classification (Bump-Ups)
01/08/1993 San Joaquin Valley Air Basin, CA CALIFORNIA 58 FR Page 3334 Final Approval Change to a Higher Classification (Bump-Ups)

First Notice

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