Air Plan Approval; Illinois; Permit-by-Rule Provisions

The Environmental Protection Agency (EPA) is approving revisions to the Illinois State Implementation Plan (SIP) to establish a general framework for permits-by-rule (PBR) and specifically provide a PBR for small boilers. In addition, EPA is approving other state provisions that are affected by the addition of the PBR regulations, as well as minor changes in nomenclature. EPA proposed to approve these revisions on July 18, 2018.