35 Ill. Adm. Code 202.507
Termination
Section 202
Section 202.507 Termination
a) If a participant in a multi-person ACS intends to terminate
involvement in the ACS, it shall give written notice to the Agency and the
other participants in the ACS at least 180 days prior to the anticipated
termination date.
b) If the ACS will not meet the standards of issuance with only
the remaining participants, they may:
1) Propose a revised ACS to include the remaining sources and
persons; this proposal shall be submitted to the Agency at least 120 days
before new permits are required; or
2) Apply for revised permits, pursuant to the otherwise
applicable regulations in this Chapter; such applications shall be submitted at
least 90 days before the permits are required; or
c) If the notice of termination of the multi-person ACS does not
allow sufficient time to meet the time periods in Subsection 202.507(b) above,
the participants may seek variance relief from the Board from the requirements
of this Chapter and of the Act.