Section 203.100  Effective Dates

a)         Subparts I through R of this Part do not apply until the effective date of the full approval of all of those Subparts by the United States Environmental Protection Agency (USEPA) as a revision to the Illinois State Implementation Plan.

b)         On the effective date of the full approval of Subparts I through R of this Part by the USEPA as part of Illinois' State Implementation Plan, the permitting and operation of projects that began actual construction or may begin actual construction before this date shall continue to be in compliance with Subparts A through H of this Part.

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