According to section 1.8.5 of the annexed Regulations and the Norwegian regulation on land transport of dangerous goods §6, serious accidents or incidents that take place during loading, filling, carriage or unloading of dangerous goods in Norway, the loader, filler, carrier or consignee, respectively, shall report the accident within 8 days to The Norwegian Directorate for Civil Protection (DSB).
Press "Start tjeneste" and choose "international".
If there is a risk of leakage or fire, the fire service must be notified immediately on 110.