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Environmental Protection Agency · EPA-R09-OAR-2025-0058

Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns

The Federal Register published the matched proposal on June 4, 2025 and the matched final rule on April 16, 2026, 316 days later.

Snapshot November 10, 2026

Official publication history

  1. Proposal ·

    Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns

    Document 2025-10036 · Proposed rule.

    Comment date listed July 7, 2025

  2. Rule ·

    Determination To Defer Sanctions; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns

    Document 2025-10037 · Interim final determination.

    Comment date listed July 7, 2025Effective date in register data June 4, 2025

  3. Final rule ·

    Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns

    Document 2026-07398 · Final rule.

    Effective date in register data May 18, 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