Federal Register #2026-09612

EPA Approval of Indiana SIP Revision for Alternative NOX Emissions Monitoring for Large Non-EGUs

This notice announces the EPA's approval of a revision to Indiana's State Implementation Plan (SIP) regarding nitrogen oxides (NOX) emissions monitoring for large non-Electric Generating Units (non-EGUs): - Government Buyer: - Environmental Protection Agency (EPA) - Indiana Department of Environmental Management (IDEM) as the state-level submitter - Scope of Action: - Approval of alternative NOX emissions monitoring, reporting, and recordkeeping requirements for large non-EGUs in Indiana - Applies to both new and existing units affected by the NOX SIP Call - Products/Services: - No specific products, equipment, or services are being procured - No OEMs or vendors are named or referenced - Notable Requirements: - Allows use of alternative monitoring methods as permitted under federal rules - Provides flexibility in demonstrating compliance with ozone season NOX emissions budgets - Does not alter emission limits or require new equipment purchases - This is a regulatory approval, not a procurement or contracting opportunity

Description

The Environmental Protection Agency (EPA) is approving a revision to the Indiana State Implementation Plan (SIP) submitted by the Indiana Department of Environmental Management (IDEM). This revision incorporates alternative nitrogen oxides (NOX) emissions monitoring, reporting, and recordkeeping requirements for new and existing large non-Electric Generating Units (non-EGUs) affected by the NOX SIP Call. The approved alternatives are permissible under Federal rules and aim to maintain compliance with ozone season NOX emissions budgets without changing emission limits. The final rule is effective June 15, 2026.

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