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Recent Updates: Federal Register Notices Published or Effective After May 31, 2025

Data is current as of June 18, 2025

whats new is displayed for notices published or effective within 30 days of the report "As of" date.
Federal Register Notices not in this Green Book will be available in reports in the next Green Book.
The "FR" links below will display Federal Register Notices from the Government Publishing Office (GPO) website.


NAAQS / Publication Date Area Name / Action / Status / Effective Date / FRN Link

8-Hour Ozone (2015)
06/03/2025Mariposa County, CA (CA) whats new
 Clean Data Determination/Attainment Determination
 Proposed Approval
  90 FR 23501

PM-2.5 (2006)
06/03/2025Los Angeles-South Coast Air Basin, CA (CA) whats new
 Clean Data Determination/Attainment Determination
 Final Approval
 Effective: 07/03/2025
  90 FR 23443

Sulfur Dioxide (2010)
06/18/2025Huntington, IN (IN) whats new
 Failure to Attain by Attainment Date
 Proposed Approval
  90 FR 25968

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