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Recent Updates: Federal Register Notices Published or Effective After February 28, 2025
Recent Updates: Federal Register Notices Published or Effective After February 28, 2025
Data is current as of March 21, 2025
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 (2008) | |
| 03/21/2025 | Sacramento Metro, CA (CA) |
| Clean Data Determination/Attainment Determination | |
| Proposed Approval | |
| 90 FR 13316 | |
| 8-Hour Ozone (1997) | |
| 03/17/2025 | Riverside County (Coachella Valley), CA (CA) |
| Attainment Date Extension | |
| Proposed Approval | |
| 90 FR 12239 | |
| Sulfur Dioxide (2010) | |
| 12/30/2024 | Alton Township, IL (IL) |
| Redesignation to Maintenance | |
| Final Approval | |
| Effective: 03/21/2025 | |
| 89 FR 106357 | |
| 01/28/2025 | Alton Township, IL (IL) |
| Presidential Delay of Effective Date | |
| Final Approval | |
| Effective: 03/21/2025 | |
| 90 FR 8254 | |
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