35 Ill. Adm. Code 203.1430
Relaxation of a Source-Specific Limitation
Section
203.1430Â Relaxation of a Source-Specific Limitation
At such time that a particular source or modification
becomes a major stationary source or major modification solely by virtue of a
relaxation in any enforceable limitation which was established after August 7,
1980, on the capacity of the source or modification otherwise to emit a
pollutant, such as a restriction on hours of operation, then the requirements
of this Part shall apply to the source or modification as though construction
had not yet commenced on the source or modification.