Whenever this Part requires a notice to be given within a period of time, that requirement shall be construed to mean that notice shall be received by the party entitled to the notice; provided however, that evidence that notice was dispatched by means reasonably calculated to be received by the prescribed date shall be prima facie proof that notice was timely received by the party entitled to the notice.
Ill. Admin. Code tit. 26, § 125.55
Amended at 35 Ill. Reg. 2351, effective February 4, 2011