Every article on this site is written by AI from official sources and checked by a second AI. How it works
Final ruleTook effect Feb. 9, 2026

Air Plan Approval; Connecticut; Revised Format for Materials Incorporated by Reference

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Feb. 9, 2026. Document 2026-02477. Updated Nov. 15, 2026.

What it does

The Environmental Protection Agency (EPA) is revising the format for materials that are made part of the Connecticut State Implementation Plan (SIP) through the process of incorporation by reference (IBR). The regulations and materials affected by this format change have all been previously submitted by Connecticut and approved by EPA as part of the SIP.

The Environmental Protection Agency's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 40 of the Code of Federal Regulations:

40 CFR 52

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Environmental Protection Agency has published 248 final rules in 2026 so far, compared with 263 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

What happens next and when

This action is effective on February 9, 2026.

The agency's dates, word for word.

Document number2026-02477
ActionFinal rule; administrative change.
AgenciesEnvironmental Protection Agency
PublishedFeb. 9, 2026
Effective dateFeb. 9, 2026
DocketEPA-R01-OAR-2025-2895

Source: the Federal Register (public domain). The document in the Federal Register