S21

The provisions of Chapter 8.4 concerning the supervision of vehicles shall apply to all material, in

whatever mass. In addition, these goods shall be subject at all times to supervision to prevent any

malicious act and to alert the driver and the competent authorities in the event of loss or fire.

However, the provisions of Chapter 8.4 need not be applied where:

(a) The loaded compartment is locked or the packages carried are otherwise protected against

illicit unloading; and

(b) The dose rate does not exceed 5μSv/h at any accessible point on the outer surface of the

vehicle.