- a) There shall be one rub rail located approximately at seat level which shall extend from the rear of the entrance door on both sides to a point of curvature at the rear of the body.
- b) Rub rails shall be constructed of 16-gauge longitudinally corrugated or ribbed steel, ventilated, four inches minimum width, and securely fastened to the body by bolts, rivets, or welding.
(Source: Amended at 12 Ill. Reg. 4220, effective February 9, 1988)