Platforms approximately level with passenger car floors may be constructed and maintained with faces less than 8 feet from the centerline of a subsidiary track used solely for passenger service, provided the coaches served by such platforms are equipped with platform gates which are kept closed while the train is in motion.
Ill. Admin. Code tit. 92, § 1500.210
Amended at 29 Ill. Reg. 20360, effective December 15, 2005