Data / Federal rules / 2024-05260

Second 10-Year Maintenance Plan for the 24-Hour PM10 Standards; Sacramento County Planning Area, California

The Environmental Protection Agency published this final rule in the Federal Register on March 14, 2024. It took effect on April 15, 2024.

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What the agency says

The Environmental Protection Agency (EPA) is taking final action under the Clean Air Act (CAA or "Act") to approve the "Second 10-Year PM<INF>10</INF> Maintenance Plan for Sacramento County" ("Second 10-Year Maintenance Plan" or "Plan") as a revision to the state implementation plan (SIP) for the State of California ("State"). The Second 10-Year Maintenance Plan includes, among other elements, a base year emissions inventory, a maintenance demonstration, contingency provisions, and motor vehicle emissions budgets ("budgets") for use in transportation conformity determinations, to ensure the continued maintenance of the national ambient air quality standards (NAAQS) for particulate matter of 10 microns or less (PM<INF>10</INF>). As part of this rulemaking, the EPA is finalizing its finding that the 2024, 2027, and 2033 motor vehicle emission budgets are adequate for use in transportation conformity.

Key facts

Document number: 2024-05260
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: March 14, 2024
Takes effect: April 15, 2024
Dates: This action will be effective on April 15, 2024.
Docket: EPA-R09-OAR-2023-0267; FRL-10958-02-R9
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Nitrogen dioxide; Particulate matter; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 2

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 March 2024

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.