Ill. Admin. Code tit. 56 § 2520.40
Documents required to be filed with the Department will be deemed filed when received, if hand-delivered, telefaxed, or electronically submitted. An item delivered by the U.S. Postal Service will be deemed to have been filed when postmarked, properly addressed and posted for delivery. An item delivered by a private delivery service will be deemed to have been filed on the date sent as indicated on the label, or in the absence of such a date on the label, will be deemed filed on the date received. An item submitted electronically will be deemed to have been filed on the date received by the Department's electronic communication system, unless it is submitted on a Saturday, Sunday or legal State holiday, in which case, it is deemed filed on the following business day.
Ill. Admin. Code tit. 56, § 2520.40
Amended at 29 Ill. Reg. 804, effective December 28, 2004