35 Ill. Adm. Code 204.280
Best Available Control Technology (BACT)
Section 204.280 Best Available Control Technology (BACT)
"Best Available Control Technology" means an
emissions limitation (including a visible emission standard) based on the
maximum degree of reduction for each regulated NSR pollutant that would be
emitted from any proposed major stationary source or major modification that
the Agency, on a case-by-case basis, taking into account energy, environmental,
and economic impacts and other costs, determines is achievable for such source
or modification through application of production processes or available
methods, systems, and techniques, including fuel cleaning or treatment or
innovative fuel combustion techniques for control of such pollutant. In no
event shall application of BACT result in emissions of any pollutant that would
exceed the emissions allowed by any applicable standard under 40 CFR 60, 61, 62
and 63 (incorporated by reference in Section 204.100). If the Agency
determines that technological or economic limitations on the application of
measurement methodology to a particular emissions unit would make the
imposition of an emissions standard infeasible, a design, equipment, work
practice, operational standard, or combination thereof, may be prescribed
instead to satisfy the requirement for the application of BACT. Such standard shall,
to the degree possible, set forth the emissions reduction achievable by
implementation of such design, equipment, work practice or operation, and shall
provide for compliance by means that achieve equivalent results.