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Final ruleTook effect Aug. 31, 2026

Operating Permit Program Approval; New Hampshire; Revised Definitions

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register July 30, 2026. Document 2026-15363. Updated Nov. 7, 2026.

What it does

The Environmental Protection Agency (EPA) approves revisions to the State of New Hampshire's Clean Air Act (CAA) title V operating permit program. These revisions amend the definitions of "hazardous air pollutant" and "regulated air pollutant" in New Hampshire regulations to remain consistent with Federal permitting and air toxics requirements in accordance with the CAA.

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 70

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 rule is effective on August 31, 2026.

The agency's dates, word for word.

Document number2026-15363
ActionFinal rule.
AgenciesEnvironmental Protection Agency
PublishedJuly 30, 2026
Effective dateAug. 31, 2026
DocketEPA-R01-OAR-2025-1608

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