Federal Register Notices Related to PM-2.5 (2012) Designations and Classifications

Data is current as of November 30, 2025
Ordered by State, Area Name

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

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CALIFORNIA
IMPERIAL COUNTY, CA
10/20/2022		87 FR 63751	Proposed Approval	Clean Data Determination/Attainment Determination
01/11/2023		88 FR 1515	Final Approval	Clean Data Determination/Attainment Determination
LOS ANGELES-SOUTH COAST AIR BASIN, CA
07/02/2020		85 FR 40026	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/09/2020		85 FR 71264	Final Approval	Change to a Higher Classification (Bump-Ups)
03/19/2021		86 FR 14832	Final Approval	Correction/Clarification
PLUMAS COUNTY, CA
11/01/2022		87 FR 65719	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/01/2022		87 FR 65719	Proposed Approval	Failure to Attain by Attainment Date
12/29/2022		87 FR 80076	Final Approval	Change to a Higher Classification (Bump-Ups)
12/29/2022		87 FR 80076	Final Approval	Failure to Attain by Attainment Date
SAN JOAQUIN VALLEY, CA
09/01/2021		86 FR 49100	Proposed Approval	Change to a Higher Classification (Bump-Ups)
11/26/2021		86 FR 67343	Final Approval	Change to a Higher Classification (Bump-Ups)
IDAHO
WEST SILVER VALLEY, ID
10/22/2018		83 FR 53201	Proposed Approval	Clean Data Determination/Attainment Determination
12/21/2018		83 FR 65535	Final Approval	Clean Data Determination/Attainment Determination
09/15/2021		86 FR 51318	Proposed Approval	Redesignation to Maintenance
11/16/2021		86 FR 63315	Final Approval	Redesignation to Maintenance
OHIO
CLEVELAND, OH
12/26/2018		83 FR 66200	Proposed Approval	Redesignation to Maintenance
04/12/2019		84 FR 14881	Final Approval	Redesignation to Maintenance
PENNSYLVANIA
ALLEGHENY COUNTY, PA
09/03/2021		86 FR 49497	Proposed Approval	Clean Data Determination/Attainment Determination
03/16/2022		87 FR 14799	Final Approval	Clean Data Determination/Attainment Determination
02/08/2023		88 FR 8249	Proposed Approval	Clean Data Determination/Attainment Determination
05/19/2023		88 FR 32117	Final Approval	Clean Data Determination/Attainment Determination
11/20/2025		90 FR 52319	Proposed Approval	Redesignation to Maintenance
DELAWARE COUNTY, PA
12/13/2016		81 FR 89889	Proposed Approval	Clean Data Determination/Attainment Determination
12/13/2016		81 FR 89868	Direct Final	Clean Data Determination/Attainment Determination
07/16/2019		84 FR 33886	Proposed Approval	Redesignation to Maintenance
09/30/2019		84 FR 51420	Final Approval	Redesignation to Maintenance
LEBANON COUNTY, PA
11/02/2017		82 FR 50851	Proposed Approval	Clean Data Determination/Attainment Determination
03/06/2018		83 FR 9435	Final Approval	Clean Data Determination/Attainment Determination
07/16/2019		84 FR 33886	Proposed Approval	Redesignation to Maintenance
09/30/2019		84 FR 51420	Final Approval	Redesignation to Maintenance