Data / Federal rules / 2024-23270

Approval and Promulgation of Implementation Plans; California; California Mobile Source Regulations

The Environmental Protection Agency published this proposed rule in the Federal Register on October 11, 2024. Comments closed on November 12, 2024.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve a revision to the California State Implementation Plan (SIP) consisting of California regulations and related test procedures that were adopted as part of California's Advanced Clean Cars I program and that establish standards and other requirements relating to the control of emissions of greenhouse gases from new passenger cars, light-duty trucks, and medium-duty vehicles. The standards and other requirements relate to 2017 and subsequent model-year passenger cars, light-duty trucks, and medium-duty vehicles. The EPA is proposing to approve the SIP revision because the regulations and related test procedures meet the applicable requirements of the Clean Air Act. If finalized, approval of the regulations and related test procedures as part of the California SIP will make them federally enforceable.

Key facts

Document number: 2024-23270
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: October 11, 2024
Comments due: November 12, 2024
Dates: Comments must be received on or before November 12, 2024.
Docket: EPA-R09-OAR-2024-0370; FRL-12152-01-R9
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Carbon monoxide; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 8

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.