"FESOP", for purposes of IC 13-17-7, means a federally enforceable state operating permit issued to a source that would require a Title V operating permit but due to a federally enforceable operating restriction has potential emissions less than the amount that would require a Title V operating permit.
IC 13-11-2-80
Pre-1996 Recodification Citation: 13-10-4-1(a)(2).