Data / Federal rules / 2024-30734

Air Plan Approval; Ohio; Nitrogen Oxide Standards Rules

The Environmental Protection Agency published this final rule in the Federal Register on December 30, 2024. It took effect on February 28, 2025. Comments closed on January 29, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is approving revisions to the Ohio State Implementation Plan (SIP) submitted by the Ohio Environmental Protection Agency (Ohio EPA) on November 4, 2024. Ohio EPA requested that EPA approve the revised rules for nitrogen oxide standards in the Ohio Administrative Code (OAC) into Ohio's SIP. The revised rules include non-substantive updates to rule language and updates to referenced material. The revisions will assist with Ohio's efforts to attain and maintain the National Ambient Air Quality Standards (NAAQS) for nitrogen dioxide (NO<INF>2</INF>).

Key facts

Document number: 2024-30734
Type: Final rule
Action: Direct final rule
Agency: Environmental Protection Agency
Published: December 30, 2024
Takes effect: February 28, 2025
Comments due: January 29, 2025
Dates: This direct final rule will be effective February 28, 2025, unless EPA receives adverse comments by January 29, 2025. If adverse comments are received, EPA will publish a timely withdrawal of the direct final rule in the Federal Register informing the public that the rule will not take effect.
Docket: EPA-R05-OAR-2024-0529; FRL-12471-01-R5
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; 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 December 2024

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.