Bunkers includes all dutiable petroleum products loaded aboard a vessel for consumption by that vessel.
International maritime bunkers describe the quantities of fuel oil delivered to ships of all flags that are engaged in international navigation. It is the fuel used to power these ships. International navigation may take place at sea, on inland lakes and waterways, and in coastal waters.
International maritime bunkers do not include fuel oil consumption by:
- ships engaged in domestic navigation; whether a vessel is engaged in domestic or international navigation is determined only by the ship's port of departure and port of arrival - not by the flag or nationality of the ship;
- fishing vessels;
- military forces.