WASHINGTON, April 19 (TNSFR) -- The U.S. Environmental Protection Agency (EPA) is proposing to approve revisions to Indiana's State Implementation Plan (SIP) that address nitrogen oxides (NOX) emissions monitoring, reporting, and record-keeping for large non-Electric Generating Units (non-EGUs) affected by the NOX SIP Call. This proposed rule, which was published on April 21, 2025, seeks to incorporate these revisions into the Indiana SIP under the Clean Air Act (CAA), allowing for permissi . . .

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