TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 442 MINIMUM SAFETY STANDARDS FOR CONSTRUCTION OF TYPE II SCHOOL BUSES
SECTION 442.205 AISLE
Section 442.205 Aisle
a) Minimum clearance of all aisles, including the aisle (or passageway) leading to an emergency door in the rear, shall be 12 inches.
b) A dedicated aisle which conforms to 49 CFR 571.217 may be adjacent to any side emergency door.
(Source: Amended at 26 Ill. Reg. 3255, effective February 19, 2002)