AUSTRALIAN EXCLUSIVE ECONOMIC ZONE (EEZ) The outer limit of the Exclusive Economic Zone (EEZ) around the Australian mainland, islands and all external territories is 200 miles seaward from the territorial sea baseline. In those areas where the territory of neighbouring countries is less than 400 nautical miles distant, with either delimitation agreements in place or interim median line limits, the outer limit of the exclusive economic zone is adjusted to conform. See Australian Seafarers Handbook AHP20.