Section 201(1) in The Bihar Motor Vehicles Rules, 1992
(1)No tractor of the following type shall be driven on any public road unless-(a)in the case of a crawler tractor or chain type every alternate rib of the track chain called "grouser plate", is, fitted with a street plate; or(b)in the case of a wheeled tractor fitted with steels wheels, protective road bands made of steel or rubber, are fitted over the steel wheels; or(c)in the case of a half track tractor; the rear wheels thereof are fitted with street plates, and the front wheels if they are steel wheels are fitted with street bands;Provided that the provisions of clause (c) so far as they relate to the fitment of street shall not apply to any tractor the track of which without grouser plates presents a flat surface in contact with the road surface.
