Environmental Protection Agency · EPA-R05-OAR-2024-0537
Air Plan Approval; Ohio; Second Maintenance Plan for 2008 Ozone NAAQS
The Federal Register published the matched proposal on May 19, 2025 and the matched final rule on February 12, 2026, 269 days later.
Official publication history
Proposal ·
Air Plan Approval; Ohio; Second Maintenance Plan for 2008 Ozone NAAQS
Comment date listed June 18, 2025
Final rule ·
Air Plan Approval; Ohio; Second Maintenance Plan for 2008 Ozone NAAQS
Effective date in register data March 16, 2026
About this timeline
How the records were matched
America.co links a proposed rule and a later final rule when the Federal Register records share the exact docket identifier and lead agency. This snapshot covers records published from January 1, 2025 to November 10, 2026.
A docket can hold more than one regulatory action. Dates here are dates listed in individual notices. Later corrections, court actions, other dockets and records outside the date window may change what applies. Follow the official documents for the full text and effective dates.
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