AUTHORITY: Implementing and authorized by Section 39.5 of the Environmental Protection Act (See P.A. 87-1213, effective September 26, 1992, and P.A. 88-464, effective August 20, 1993) [415 ILCS 5/39.5].ENVIRONMENTAL PROTECTION AGENCY
a) The Agency determines that cause exists to reopen and revise a CAAPP permit, pursuant to Section 39.5(15)(a) of the Act; or
b) USEPA determines that cause exists to reopen and modify a CAAPP permit, pursuant to Section 39.5(16) of the Act.
The provisions of this Subpart shall apply only if: