Ill. Admin. Code tit. 23, § 207.30
a) Each absenteeism and truancy policy adopted under this Part must be updated every 2 years and filed with the State Board of Education and the regional superintendent of schools (see Section 22-92(b) of the School Code [105 ILCS 5]). No later than September 30, 2022, or no later than September 30 of the first full school year a school becomes subject to this Part, each school or district must file the policy through the State Board of Education’s Illinois Web Application Security (IWAS) system and must submit an updated policy every two years thereafter no later than September 30 of the year due.