Federal Register #2026-17499

EPA Proposed Approval of Oklahoma SIP Revision for Regional Haze Program

This opportunity involves the Environmental Protection Agency (EPA) proposing approval of a regulatory revision submitted by the Oklahoma Department of Environmental Quality for the regional haze program. - Government Buyer: - Environmental Protection Agency (EPA) - Oklahoma Department of Environmental Quality (state agency submitting the revision) - OEMs and Vendors Mentioned: - American Electric Power (AEP) - Public Service of Oklahoma (PSO) - Products/Services Requested: - No products or services are being procured; this is a regulatory approval action - Unique or Notable Requirements: - Revision updates source-specific requirements for the AEP/PSO Northeastern Power Station - Removes requirement for Unit 3 to cease operations; allows continued operation as a natural gas-fired unit with new emission limits - Enforceable mechanisms established through the 2025 PSO Regional Haze Agreement, amending previous agreements - Compliance with Clean Air Act and Regional Haze Rule is required - No purchase quantities, part numbers, or procurement-specific requirements are specified

Description

The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by Oklahoma on March 12, 2026, for the regional haze program's first implementation period. This revision updates source-specific requirements for the American Electric Power/Public Service of Oklahoma (AEP/PSO) Northeastern Power Station as part of Oklahoma's long-term strategy. The revision includes removing the requirement for PSO Northeastern Unit 3 to cease operations by December 31, 2026, allowing it to continue operating as a natural gas-fired unit with specific emission limits. The EPA finds that this SIP revision meets the requirements of the Clean Air Act and the Regional Haze Rule. Written comments on the proposal must be received by September 28, 2026.

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