The coastal member State of the EU has the obligation take measures in order to protect Natura 2000 sites within its territorial waters and its EEZ. Its jurisdiction is however subject to the rights of other States arising from the 1982 UNCLOS. This is particularly true for disturbances potentially arising from navigation, for which the powers of the coastal State are very limited. Only the intervention of the IMO, and the designation of particularly sensitive sea areas, can help to solve this problem.