21 Apr 2025

🌬️Indiana EPA Proposes Revisions for NOx Emissions Monitoring

Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring

Summary

The Environmental Protection Agency (EPA) is proposing to approve under the Clean Air Act (CAA) a request from the Indiana Department of Environmental Management (IDEM) to revise the Indiana State Implementation Plan (SIP) to incorporate revisions to nitrogen oxides (NO<INF>X</INF>) emissions monitoring, reporting and record keeping requirements for new and existing large non-Electric Generating Units (non-EGUs) affected by the NO<INF>X</INF> SIP Call. This SIP revision would approve monitoring, reporting, and record keeping requirements that are permissible as alternatives under Federal rules for these sources for purposes of the NO<INF>X</INF> SIP Call.

Agencies

  • Environmental Protection Agency

Business Impact ?

$$ - Med

The proposed rule affects compliance and regulatory requirements for businesses operating large non-EGUs in Indiana, specifically concerning NOx emissions monitoring, reporting, and record keeping. Businesses must adapt to new rules allowing alternative monitoring methods, which could impact operational costs and compliance activities.

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