35 Ill. Adm. Code 217.706
Emission Limitations
Section 217
Section 217.706 Emission
Limitations
a) On or after May 1, 2003, no owner or operator subject to this
Subpart shall cause or allow the emissions of NO
x
into the
atmosphere from any EGU to exceed 0.25 lbs/mmbtu of actual heat input during
each ozone control period, based on a control period average for that unit.
b) Notwithstanding the emission limitation in subsection (a) of
this Section, any EGU subject to a more stringent NO
x
emission
limitation pursuant to any State or federal statute, including the Act, the
Clean Air Act, or any regulations promulgated thereunder, shall comply with
both the requirements of this Subpart and that more stringent emission
limitation.