Norwegian Customs App Norwegian Customs' app for quota calculation and customs clearance.   Calculate the duty free quota and clear through customs the items you are bringing in above the quota. The app calculates the duty. You can pay directly in the app and go through the green channel.   If you want to bring in alcohol and tobacco products exceeding the duty free quota, you can use this app to calculate the duty you have to pay. Using this app you can clear up to 27 litres of beer or wine, fo