Section 134(3) in The Central Motor Vehicles Rules, 1989
(3)[] [Sub-Rule(2) renumbered as sub-Rule(3) by GSR 338(E), dated 26.3.1993 (w.e.f. 26.3.1993).] Every class label and emergency information panel shall be marked on the goods carriage and shall be kept free and clean from obstructions at all times.