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Environmental Protection Agency · EPA-R10-OAR-2023-0348

Air Plan Approval; AK; Regional Haze State Implementation Plan for the Second Implementation Period

The Federal Register published the matched proposal on October 30, 2025 and the matched final rule on March 3, 2026, 124 days later.

Snapshot November 10, 2026

Official publication history

  1. Proposal ·

    Air Plan Approval; AK; Regional Haze Plan for the Second Implementation Period

    Document 2025-19713 · Proposed rule.

    Comment date listed December 1, 2025

  2. Comment period update ·

    Air Plan Approval; AK; Regional Haze Plan for the Second Implementation Period; Extension of Comment Period

    Document 2025-20415 · Proposed rule; extension of comment period.

    Comment date listed December 16, 2025

  3. Final rule ·

    Air Plan Approval; AK; Regional Haze State Implementation Plan for the Second Implementation Period

    Document 2026-04159 · Final rule.

    Effective date in register data April 2, 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.

Federal Register data source · Search Regulations.gov · Download this snapshot