92 Ill. Adm. Code 442.208
Barriers, Guard
Section 442.208 Barriers,
Guard
a) A restraining guard barrier shall be
installed in front of the right and left front passenger seats. Barriers shall
be constructed to guard passengers from being thrown into the stairwell, dash, windshield,
or driver's compartment. Barriers shall be padded to give knee and head impact
protection. Barriers shall conform to S5.2 through S5.2.3 of FMVSS 222. (See
92 Ill. Adm. Code 444 for exceptions for special education school buses.)
b) The vertical distance from the floor
covering to the top of a barrier positioned in front of a student's seat shall
measure not less than the vertical distance from the floor covering to the top
of the seat back on the seat back installed behind that barrier.