Country Experience: Norway: Ships registers (ch. 3)
3.28. Example from Norway: use of ships registers. In Norway, the external trade of ships, aircrafts and movable drilling rigs is not properly covered by data from customs. Concerning ships, estimates based on change of ownership are used as an alternative. Statistics Norway regularly receives information from the Norway’s shipping registers (NIS/NOR) about new registrations, cancellations and other changes in the registers. Based on this information, a letter and a form are sent to the registered owner, asking for additional information. The full details of this example is provided in chapter XXIII, annex B.