Federal Register #EPA-R01-OAR-2026-2147

EPA Conditional Approval Proposal for Removal of New Hampshire Motor Vehicle I/M Program from SIP

The U.S. Environmental Protection Agency (EPA) Region 1 is proposing a conditional approval for New Hampshire's request to remove its motor vehicle inspection and maintenance (I/M) program from the State Implementation Plan (SIP). - Government Buyer: - U.S. Environmental Protection Agency (EPA), Region 1 - New Hampshire Department of Environmental Services (NHDES) is the submitting agency - No OEMs or vendors are mentioned; this is a regulatory action, not a procurement - Products/Services Requested: - No products or services are being procured - Unique/Notable Requirements: - New Hampshire seeks to eliminate the I/M program as an emissions control measure - NHDES must submit an additional SIP revision within one year to address maintenance plan requirements - EPA requires demonstration that removal will not interfere with compliance to National Ambient Air Quality Standards (NAAQS) or Clean Air Act (CAA) requirements - This action is regulatory and does not involve purchasing or contracting for goods or services

Description

The U.S. Environmental Protection Agency (EPA) is proposing to conditionally approve a State Implementation Plan (SIP) revision submitted by the State of New Hampshire on December 24, 2025, through the New Hampshire Department of Environmental Services (NHDES). The revision seeks to remove the statewide motor vehicle inspection and maintenance (I/M) program as an active measure previously approved to address emissions from on-road sources. The SIP submittal demonstrates that removing the I/M program will not interfere with New Hampshire's compliance with any National Ambient Air Quality Standard (NAAQS) or applicable Clean Air Act requirements. NHDES has committed to submitting an additional SIP revision within one year of final conditional approval to address maintenance plan requirements.

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