The aisle in Type 1 school buses shall be at least 12 in. wide; the aisle in Type 2 school buses manufactured on and after July 1, 1970, shall be at least 11 in. wide. Aisles shall provide unobstructed access to all seats on the aisle. The aisle on all Type 1 school buses and Type 2 school buses manufactured on and after April 1, 1977, shall provide unobstructed access to the rear floor-level emergency door, if so equipped. Aisles shall be surfaced with a nonslip material.
Cal. Code Regs. Tit. 13, § 1279
Note: Authority cited and Reference: Section 34508, Vehicle Code.