24 Jul 2025

🌬️EPA Approves Maryland's NOx Ozone Emission Caps Compliance Plan

Approval and Promulgation of Air Quality Implementation Plans; Maryland; Nitrogen Oxides Ozone Season Emissions Caps for Non-Trading Large Nitrogen Oxides Units; Amendments

Summary

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Maryland. This revision (Maryland Submittal #24-01) pertains to the re-allocation of nitrogen oxides (NO<INF>X</INF>) ozone season emission caps for large non-electric generating units (non-EGUs, affected units). The amendment also updates a cross reference to the Cross State Air Pollution Rule (CSAPR). This action is being taken under the Clean Air Act (CAA).

Agencies

  • Environmental Protection Agency

Business Impact ?

$$$ - High

The regulation necessitates compliance from large non-electric generating units in Maryland regarding nitrogen oxides emissions caps, which impacts operational costs and regulatory adherence for affected businesses. The SIP revision underlines the importance of monitoring and reporting, which can translate into financial investments for compliance.

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