12.3.1     Upon unpacking the CTU, it may in agreement with the CTU operator either be returned to the CTU operators’ facility or transported to a new consignor/packer/shipper. Under either scenario, unless otherwise agreed, the consignee is responsible for ensuring that the CTU is completely clean, free of cargo residues, noxious materials, plants, plant products visible pests.

12.3.2     When disposing of cargo residues and cargo associated waste, the applicable environmental regulations should be considered. Wherever practicable, dunnage bags and other securing materials should be recycled. When wood quarantine requirements apply, timber bracings and packing/securing material of natural wood, not bearing the appropriate IPPC marking, (see annex 7, section 1.14) should be disposed of as required by national or local plant protection regulations.

12.3.3     After a CTU with dangerous goods has been unpacked, particular care should be taken to ensure that no hazard remains. This may require special cleaning, particularly if spillage of a toxic or corrosive substance has occurred or is suspected. In case of doubt with regard to appropriate cleaning measures, the CTU operator should be contacted.

12.3.4   All placards and other markings referring to the last shipment, including, where applicable, markings referring to dangerous goods, should be removed, masked or otherwise obliterated.