Ill. Admin. Code tit. 77, pt. 905, app BDownload PDFCurrent through Register Vol. 49, No. 2, January 10, 2025Appendix B - Contact Information for the Central and Regional OfficesClick here to view imageIll. Admin. Code tit. 77, pt. 905, app BAmended at 37 Ill. Reg. 14994, effective August 28, 2013