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Final ruleTook effect Oct. 9, 2026

Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Sept. 9, 2026. Document 2026-18324. Updated Nov. 6, 2026.

What it does

The Environmental Protection Agency (EPA or the Agency) is approving a State Implementation Plan (SIP) submitted by the State of New York for purpose of demonstrating that the State satisfies the interstate transport requirements, also known as the "good neighbor" provision of the Clean Air Act (CAA), for the 2010 1-hour sulfur dioxide (SO<INF>2</INF>) primary National Ambient Air Quality Standard (NAAQS). Under the good neighbor provision, each State's implementation plan must contain adequate provisions prohibiting the interstate transport of air pollution in amounts that will either contribute significantly to nonattainment, or interfere with maintenance, of the NAAQS in any other State. This action is being taken in accordance with the requirements of the Clean Air Act.

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 243 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 final rule is effective on October 9, 2026.

The agency's dates, word for word.

Document number2026-18324
ActionFinal rule.
AgenciesEnvironmental Protection Agency
PublishedSept. 9, 2026
Effective dateOct. 9, 2026
DocketEPA-R02-OAR-2025-1047

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