if the substance to be carried is a waste, with a composition that is not precisely known, its assignment to a un number and packing group in accordance with 2.1.3.5.2 may be based on the consignor’s knowledge of the waste, including all available technical and safety data as requested by safety and environmental legislation in force2.
in case of doubt, the highest danger level shall be taken.
if however, on the basis of the knowledge of the composition of the waste and the physical and chemical properties of the identified components, it is possible to demonstrate that the properties of the waste do not correspond to the properties of the packing group i level, the waste may be classified by default in the most appropriate n.o.s. entry of packing group ii. however, if it is known that the waste possesses only environmentally hazardous properties, it may be assigned to packing group iii under un nos. 3077 or 3082.
this procedure may not be used for wastes containing substances mentioned in 2.1.3.5.3, substances of class 4.3, substances of the case mentioned in 2.1.3.7 or substances which are not accepted for carriage in accordance with 2.2.x.2.