Data / Federal rules / 2025-20142

Air Plan Approval; Connecticut; 2014 and 2017 Periodic Emissions Inventory for 2008 8-Hour Ozone NAAQS

The Environmental Protection Agency published this final rule in the Federal Register on November 18, 2025. It took effect on December 18, 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. These SIP revisions relate to the 2008 8-Hour ozone National Ambient Air Quality Standards (NAAQS). The SIP revisions consist of the following: 2014 and 2017 calendar year periodic emissions inventories. This action is being taken under the Clean Air Act (CAA).

Key facts

Document number: 2025-20142
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: November 18, 2025
Takes effect: December 18, 2025
Dates: This rule is effective on December 18, 2025.
Docket: EPA-R01-OAR-2025-0240; FRL-12861-02-R1
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Carbon monoxide; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; Ozone; 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 carbon monoxide · Rules on environmental protection · Published in November 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.