Data / Federal rules / 2024-17711

Partial Approval and Partial Disapproval of Air Quality State Implementation Plans; Arizona; 2015 Ozone Infrastructure Requirements

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

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What the agency says

The Environmental Protection Agency (EPA) is approving in part and disapproving in part State implementation plan (SIP) revisions submitted by the State of Arizona pursuant to the Clean Air Act (CAA) for the implementation, maintenance, and enforcement of the 2015 ozone national ambient air quality standards (NAAQS or "standard"). In addition to our partial approval and partial disapproval of Arizona's SIP revision, the EPA is approving rules in the Arizona Revised Statutes and Pima County Code related to public availability of emissions reports into the Arizona SIP and reclassifying regions in Arizona with respect to emergency episode plans for ozone. Additionally, this final action includes an error correction to amend regulatory text related to the nonattainment designation of the Phoenix-Mesa, Arizona area for the 2015 ozone NAAQS.

Key facts

Document number: 2024-17711
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: September 4, 2024
Takes effect: October 4, 2024
Dates: This rule is effective October 4, 2024.
Docket: EPA-R09-OAR-2022-0326; FRL-9693-02-R9
Code of Federal Regulations: 40 CFR 52; 40 CFR 81
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Ozone; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 9

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 September 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.