Base
Proposed Rule2026-163312026-08-11

Response to Clean Air Act Section 176A Petition From New Hampshire

Environmental Protection Agency

Abstract

The Environmental Protection Agency (EPA) is proposing to grant a Clean Air Act (CAA or Act) petition submitted by the state of New Hampshire on December 24, 2025. The petition requests that the EPA remove the State of New Hampshire from the Ozone Transport Region (OTR) based on New Hampshire's continued attainment of the ozone National Ambient Air Quality Standards (NAAQS) and technical analyses demonstrating that the additional control of emissions from the state will not significantly contribute to ozone attainment in any area in the OTR. The OTR was established by the 1990 Clean Air Act Amendments and included the States of Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, the District of Columbia, and portions of northern Virginia.

Action & Dates

Action
Notice of proposed action on petition.
Dates
Comments must be received on or before September 25, 2026.

CFR References

Topics

Air pollution controlEnvironmental protectionOzoneParticulate matter

Public Comment

Comments Close
2026-09-25

Corrections

This document has been corrected by:

Document Excerpt

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 81 [EPA-HQ-OAR-2026-2179; FRL-13567-01-R1] AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of proposed action on petition. SUMMARY: The Environmental Protection Agency (EPA) is proposing to grant a Clean Air Act (CAA or Act) petition submitted by the state of New Hampshire on December 24, 2025. The petition requests that the EPA remove the State of New Hampshire from the Ozone Transport Region (OTR) based on New Hampshire's continued attainment of the ozone National Ambient Air Quality Standards (NAAQS) and technical analyses demonstrating that the additional control of emissions from the state will not significantly contribute to ozone attainment in any area in the OTR. The OTR was established by the 1990 Clean Air Act Amendments and included the States of Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, the District of Columbia, and portions of northern Virginia. DATES: Comments must be received on or before September 25, 2026. Public hearing: The EPA will hold a virtual public hearing on August 26, 2026. The EPA may close a session 15 minutes after the last registered speaker has testified if there are no additional speakers. The EPA will announce further details at https://www.epa.gov/​nh/​new-hampshire-clean-air-act-176a-petition-im-program-sip-revision . The EPA will begin pre-registering speakers for the hearing on August…

Read full document on FederalRegister.gov →

Related Documents

Other Federal Register documents from the same docket.

Full Document

Citation: 91 FR 51644