Ill. Admin. Code tit. 23, § 226.610
Each school district shall notify parents in writing of the procedures for requesting a due process hearing in accordance with 34 CFR 300.507 and 300.508. This written notice shall be provided to the parent by the district upon receipt of a request for a due process hearing. Written notice provided to parents as required under Section 226.510 of this Part shall be deemed sufficient notice for purposes of this Section.
(Source: Amended at 31 Ill. Reg. 9915, effective June 28, 2007)