35 Ill. Adm. Code 204.1100
Control Technology Review
Section 204.1100 Control Technology Review
a) A
major stationary source or major modification shall meet each applicable
emissions limitation under the SIP and each applicable emissions standard and
standard of performance under 40 CFR 60, 61, 62 and 63 (incorporated by
reference in Section 204.100).
b) A new
major stationary source shall apply BACT for each regulated NSR pollutant that
it would have the potential to emit in significant amounts (defined in Section
204.660).
c) A
major modification shall apply BACT for each regulated NSR pollutant for which
it would result in a significant net emissions increase at the source. This
requirement applies to each proposed emissions unit at which a net emissions
increase in the pollutant would occur as a result of a physical change or
change in the method of operation in the unit.
d) For
phased construction projects, the determination of BACT shall be reviewed and
modified as appropriate at the latest reasonable time that occurs no later than
18 months prior to commencement of construction of each independent phase of
the project. At such time, the owner or operator of the applicable stationary
source may be required to demonstrate the adequacy of any previous
determination of BACT for the source.