Data / Federal rules / 2024-25228

Air Plan Approval; Revisions to Colorado Common Provisions Regulation

The Environmental Protection Agency published this proposed rule in the Federal Register on October 30, 2024. Comments closed on November 29, 2024.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Common Provisions Regulation of the Colorado State Implementation Plan (SIP). These revisions were submitted by the State of Colorado in response to the EPA's June 12, 2015, Findings of Substantial Inadequacy and "SIP call" for certain provisions in the SIP related to affirmative defenses applicable to excess emissions during startup, shutdown, and malfunction (SSM) events. The EPA is proposing approval of these SIP revisions because the Agency has determined that they are in accordance with the requirements for SIP provisions under the Clean Air Act (CAA or the Act).

Key facts

Document number: 2024-25228
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: October 30, 2024
Comments due: November 29, 2024
Dates: Written comments must be received on or before November 29, 2024.
Docket: EPA-R08-OAR-2024-0207; FRL-12341-01-R8
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Carbon monoxide; Environmental protection; Greenhouse gases; Incorporation by reference; Intergovernmental relations; Lead; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides; Volatile organic compounds
Pages: 5

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on carbon monoxide · Rules on environmental protection · Published in October 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.