2009 New Jersey Code
TITLE 39 - MOTOR VEHICLES AND TRAFFIC REGULATION
39:3
39:3-79.1 - Devices to prevent throwing of dirt on windshields of following  vehicles

39:3-79.1.  Devices to prevent throwing of dirt on windshields of following  vehicles
    No person shall operate or cause to be operated any bus, truck, full trailer  or semitrailer of registered gross weight exceeding three tons on any public  highway unless the same is equipped with suitable metal protectors or substantial flexible flaps on the rearmost wheels, and, in case the rear wheels  are not covered at the top by fender, body or other parts of the vehicle, the  rear wheels shall be covered at the top by protective means, of such standard  type or design and installed in such manner as shall be approved by the  Director of the Division of Motor Vehicles in the Department of Law and Public  Safety and as shall conform substantially to any requirements of the Interstate  Commerce Commission governing similar subject matter, in order to prevent, as  far as practical, such wheels from throwing dirt, water or other materials on  the windshields of the following vehicles, except in cases in which the motor  vehicle is so designed and constructed that the above requirements are  accomplished by reason of fender or body construction or other means of  enclosure; provided, however, this act shall not apply to pole trailers, dump  trucks, tanks, or other vehicles where the construction thereof is such that complete freedom around the wheel area is necessary to secure the designed use  of the vehicle.

     L.1952, c. 343, p. 1122, s. 1.