(A) Preferential right-of-way at an intersection may be indicated by stop signs or yield signs as authorized in ILCS Ch. 625, Act 5, § 11-302.
(B) Except when directed to proceed by a police officer or traffic-control signal, every driver of a vehicle and every motorman of a streetcar approaching a stop intersection indicated by a stop sign shall stop before entering the crosswalk on the near side of the intersection or, in the event there is no crosswalk, shall stop at a clearly marked stop line, but if none, then at the point nearest the intersecting roadway where the driver has a view of approaching traffic on the intersecting roadway before entering the intersection.
(C) The driver of a vehicle approaching a yield sign if required for safety to stop shall stop before entering the crosswalk on the near side of the intersection or, in the event there is no crosswalk, at a clearly marked stop line, but if none, then at the point nearest the intersecting roadway where the driver has a view of approaching traffic on the intersecting roadway.
(ILCS Ch. 625, Act 5, § 11-1204) Penalty, see § 70.99