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Recent Updates: Federal Register Notices Published or Effective After September 30, 2026
Recent Updates: Federal Register Notices Published or Effective After September 30, 2026
Data is current as of October 09, 2026
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) | |
| 10/09/2026 | Berrien County, MI (MI) |
| Clean Data Determination/Attainment Determination | |
| Final Approval | |
| Effective: 10/09/2026 | |
| 91 FR 64623 | |
| 10/09/2026 | Muskegon County, MI (MI) |
| Clean Data Determination/Attainment Determination | |
| Final Approval | |
| Effective: 10/09/2026 | |
| 91 FR 64623 | |
| PM-2.5 (2012) | |
| 10/01/2026 | Los Angeles-South Coast Air Basin, CA (CA) |
| Attainment Date Extension | |
| Final Approval | |
| Effective: 11/02/2026 | |
| 91 FR 62316 | |
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