Section 203.1450  Control of Ozone, PM₁₀, and PM_2.5

a)         The provisions of this Part applicable to major stationary sources and major modifications of VOM shall apply to NO_X emissions from major stationary sources and major modifications of NO_X in any ozone nonattainment area, except in ozone nonattainment areas where the USEPA has granted a NO_X waiver applying the standards under section 182(f) of the CAA (42 U.S.C. 7511a(f)) and the waiver continues to apply.

b)         The provisions of this Part applicable to major stationary sources and major modifications of PM₁₀ shall also apply to major stationary sources and major modifications of PM₁₀ precursors, except where the USEPA determines that such sources do not contribute significantly to PM₁₀ levels that exceed the PM₁₀ ambient standards in the area.

c)         The control requirements of this Part which are applicable to major stationary sources and major modifications of PM_2.5 shall also apply to major stationary sources and major modifications of PM_2.5 precursors which are regulated NSR pollutants in a PM_2.5 nonattainment area.

(Source:  Added at 49 Ill. Reg. 6237, effective April 23, 2025)