35 Ill. Adm. Code 201.408
Compliance Schedules
Section 201
Section 201.408 Compliance
Schedules
Owners and operators of sources
subject to Section 201.401 shall install all necessary equipment and monitor in
accordance with the compliance schedule contained in the permit issued by the
Agency. This schedule shall provide that monitoring and recording begin within
18 months of this Subpart being approved by the USEPA pursuant to Section
110(a)(3)(A) of the Clean Air Act as a revision to the State Implementation
Plan, unless the owner or operator has been granted a variance pursuant to
Section 35(a) of the Act allowing a longer compliance schedule.