Data / Federal rules / 2025-11821

Air Plan Approval; Missouri; Definitions and Common Reference Tables

The Environmental Protection Agency published this proposed rule in the Federal Register on June 27, 2025. Comments closed on July 28, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Missouri State Implementation Plan (SIP) related to Definitions and Common Reference Tables used in Missouri rules. EPA has also previously approved this rule as part of the air planning and permitting program. Some of the definitions are associated with those programs, even though many of the definitions pertain only to the SIP. These revisions do not impact the stringency of the SIP or have an adverse effect on air quality. The EPA's proposed approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).

Key facts

Document number: 2025-11821
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: June 27, 2025
Comments due: July 28, 2025
Dates: Comments must be received on or before July 28, 2025.
Docket: EPA-R07-OAR-2025-0289; FRL-12821-01-R7
Code of Federal Regulations: 40 CFR 52; 40 CFR 62; 40 CFR 70
Topics: Administrative practice and procedure; Air pollution control; Carbon monoxide; Environmental protection; Incorporation by reference; Intergovernmental relations; Lead; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides; Volatile organic compounds
Pages: 4

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on administrative practice and procedure · Rules on air pollution control · Rules on carbon monoxide · 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.