Ill. Admin. Code tit. 44, § 4.4035
Except when deemed by the PPB to be in the best interest of the university, no university may incur rental obligations before having occupancy or possession of the space rented. For the purposes of this Section, the terms "occupancy" and "possession" shall have the same meaning.
(Source: Amended at 36 Ill. Reg. 10951, effective August 6, 2012)