145. For rail and road vehicles carrying packages, overpacks, tanks or freight containers labelled with any of the labels as specified in Figures 2, 3, 4 or 5 of the Thirteenth Schedule or carrying unpackaged LSA-I material, SCO-I or SCO-III or consignments under exclusive use, the carrier shall display the placard shown in Figure 6 of the Thirteenth Schedule on each of:
(a) the two external lateral walls in the case of a rail vehicle; and
(b) the two external lateral walls and the external rear wall in the case of a road vehicle.
146. For rail and road vehicles without sides, the placards shall be affixed on the tanks or freight containers.
147. For vehicles without tanks or freight containers, the placards may be affixed directly on the cargo-carrying unit, provided that they are readily visible.
148. For rail and road vehicles which have insufficient area to allow the fixing of larger placards, the dimensions of the placard as described in Figure 6 of the Thirteenth Schedule may be reduced to 100 mm.
149. Any placards which do not relate to the contents shall be removed.
150. Where the consignment in or on the conveyance is:
(a) unpackaged LSA-I;
(b) SCO-I;
(c) SCO-III; or
(d) a consignment of a single United Nations Number commodity as set out in column (B) of the Twelfth Schedule to be transported under exclusive use;
the appropriate United Nations Number as specified in column (A) of the Twelfth Schedule shall also be displayed, in black digits not less than 65 mm high, either in the lower half of the placard as specified in Figure 6 of the Thirteenth Schedule, and against the white background, or on the placard specified in Figure 7 of the Thirteenth Schedule.
151. When the placard as specified in Figure 7 of the Thirteenth Schedule is used for the purpose of Article 76, the subsidiary placard shall be affixed immediately adjacent to the main placard.