Why do I have to give the Post Office authorisation for customs clearance of the consignment when I do not need to give authorisation in other instances?

In some cases, the sender has paid the customs clearance cost and hence given the Post Office customs clearance authorisation. When the sender has not paid the customs clearance cost, this cost will be passed on in full to the importer. This means that when the Post Office has to provide customs clearance for the consignment, we have to have customs clearance authorisation from the importer as we are acting on behalf of the importer for Norwegian Customs. Such authorisation is specified in the delivery attachment you receive and normally has to be given the first time you receive this kind of consignment from the Post Office.  more