All openings in the floorboard or fire wall between the chassis and the passenger compartment including, but not limited to, the gearshift selector/lever and the parking brake control shall be sealed. Hoses, electrical lines, cables, and other equipment that pass through the fire wall shall be sealed with a rubber grommet and/or suitable compound designed for such use to prevent chafing and to prevent fumes from entering the passenger compartment of the school bus.
N.J. Admin. Code § 13:20-50A.18