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Data / Federal rules / 2025-10037

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

The Environmental Protection Agency published this final rule in the Federal Register on June 4, 2025. It took effect on June 4, 2025. Comments closed on July 7, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is making an interim final determination that the California Air Resources Board (CARB) has submitted a revised rule on behalf of the Eastern Kern Air Pollution Control District (EKAPCD) that addresses deficiencies in its Clean Air Act (CAA or "Act") State Implementation Plan (SIP) concerning reasonably available control technology (RACT) ozone nonattainment requirements for controlling emissions of oxides of nitrogen (NO<INF>X</INF>) from Portland cement kilns. This determination is based on a proposed approval of the submitted revised rule, published elsewhere in this issue of the Federal Register. The effect of this interim final determination is that the application of offset sanctions that was triggered by a previous limited disapproval by the EPA in 2023 is now stayed, and the application of highway sanctions is now deferred. If the EPA finalizes its proposed approval of EKAPCD's submittal, relief from these sanctions will become permanent.

Key facts

Document number
2025-10037
Type
Final rule
Action
Interim final determination
Agency
Environmental Protection Agency
Published
June 4, 2025
Takes effect
June 4, 2025
Comments due
July 7, 2025
Dates
This interim final determination is effective June 4, 2025. However, comments will be accepted on or before July 7, 2025.
Docket
EPA-R09-OAR-2025-0058; FRL-12609-02-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

Other documents from the Environmental Protection Agency

Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in June 2025

Read from the Federal Register API, last updated 2026-10-24. 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.