35 Ill. Adm. Code 813.108
Term of Permit
Section 813
Section 813.108 Term of
Permit
a) No permit issued pursuant to this Part shall have a term of
more than five years.
b)
A development permit issued under subsection (A) of Section
39 for any facility or site which is required to have a permit under subsection
(D) of Section 21 shall expire at the end of two calendar years from the date
upon which it was issued, unless within that period the applicant has taken
action to develop the facility or the site. In the event that review of the
conditions of the development permit is sought pursuant to Sections 40 or 41,
or the permittee is prevented from commencing development of the facility or
site by any other litigation beyond the permittee's control, such two-year
period shall be deemed to begin on the date upon which such review process or
litigation is concluded.
(Section 39(c) of the Act)