Ill. Admin. Code tit. 35, § 807.508
a) When closure is completed, the operator of a waste management site shall submit to the Agency:
b) If the Agency finds that the site has been closed in accordance with the specifications of the closure plan, and the closure requirements of this Part, the Agency shall:
(Source: Amended at 9 Ill. Reg. 18942, effective November 25, 1985)