Section 203.2500  Applicability

a)         In any area designated as attainment or unclassifiable under sections 107(d)(l)(A)(ii) or (iii) of the CAA (42 U.S.C. 7407(d)(l)(A)(ii) or (iii)), no person shall begin actual construction of a new major stationary source or major modification if the emissions from the major stationary source or major modification would cause or contribute to a violation of any NAAQS, except as in compliance with this Subpart. 

b)         This Subpart shall not apply to a major stationary source or major modification with respect to a particular pollutant if the owner or operator demonstrates that, as to that pollutant, the source or modification is located in an area designated as nonattainment pursuant to section 107 of the CAA (42 U.S.C. 7407).

c)         The applicability of 35 Ill. Adm. Code 204 is not affected by the applicability of this Subpart.

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