PM-2.5 (2012) Clean Data Determination/Attainment Determinations For Areas with Current Nonattainment Status

Data is current as of May 31, 2023
Ordered by Area Name

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

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MODERATE
Allegheny County, PA
Clean Data Determination
Proposed Approval	09/03/2021	86 FR 49497
Final Approval	03/16/2022	87 FR 14799	Effective: 04/15/2022
Determination of Attainment by Attainment Date
Proposed Approval	02/08/2023	88 FR 8249
Final Approval	05/19/2023	88 FR 32117	Effective: 06/20/2023
Imperial County, CA
Both Clean Data Determination and Determination of Attainment by Attainment Date
Proposed Approval	10/20/2022	87 FR 63751
Final Approval	01/11/2023	88 FR 1515	Effective: 02/10/2023

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