Data / Federal rules / 2025-06610

Air Plan Approval; Connecticut; State Implementation Plan Revisions Required by the 2015 Ozone NAAQS

The Environmental Protection Agency published this final rule in the Federal Register on April 22, 2025. It took effect on May 22, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions submitted by the State of Connecticut for the 2015 ozone National Ambient Air Quality Standard (NAAQS). These revisions certify the adequacy of the SIP to satisfy the nonattainment new source review permitting requirements of the Clean Air Act (CAA) for the reclassification of the Greater Connecticut area to moderate nonattainment for the 2015 ozone NAAQS, and certify the emission statement program satisfies CAA requirements for the initial nonattainment designations and the reclassification to moderate nonattainment for the 2015 ozone NAAQS. This action is being taken in accordance with the CAA.

Key facts

Document number: 2025-06610
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: April 22, 2025
Takes effect: May 22, 2025
Dates: This rule is effective on May 22, 2025.
Docket: EPA-R01-OAR-2024-0193; FRL-12285-02-R1
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Nitrogen dioxide; Ozone; 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 2025

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.