Data / Federal rules / 2024-06879

Air Plan Approval; Arizona; Maricopa County Air Quality Department

The Environmental Protection Agency published this final rule in the Federal Register on April 4, 2024. It took effect on May 6, 2024.

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What the agency says

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Maricopa County Air Quality Department (MCAQD) portion of the Arizona State Implementation Plan (SIP). These revisions concern a rule that includes definitions for certain terms that are necessary for the implementation of local rules that regulate sources of air pollution. We are approving a local rule under the Clean Air Act (CAA or the Act).

Key facts

Document number: 2024-06879
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: April 4, 2024
Takes effect: May 6, 2024
Dates: This rule is effective May 6, 2024.
Docket: EPA-R09-OAR-2023-0599; FRL-11591-02-R9
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen oxides; Ozone; Particulate matter; Reporting and recordkeeping requirements; Volatile organic compounds
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 April 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.