Data / Federal rules / 2026-07398

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

The Environmental Protection Agency published this final rule in the Federal Register on April 16, 2026. It took effect on May 18, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Eastern Kern Air Pollution Control District (EKAPCD or "District") portion of the California State Implementation Plan (SIP). This revision concerns emissions of oxides of nitrogen (NO<INF>X</INF>) from Portland cement kilns. We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or "Act").

Key facts

Document number: 2026-07398
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: April 16, 2026
Takes effect: May 18, 2026
Dates: This rule is effective May 18, 2026.
Docket: EPA-R09-OAR-2025-0058; FRL-12609-03-R9
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen oxides; Ozone; Reporting and recordkeeping requirements
Pages: 3

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in April 2026

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.