Enforcement measures by coastal States with respect to ships in transit
Article 7
1. If the suspected discharge of polluting substances takes place in the areas referred to in Article 3(1)(b), (c), (d) or (e) and the ship which is suspected of the discharge does not call at a port of the Member State holding the information relating to the suspected discharge, the following shall apply: (a) If the next port of call of the ship is in another Member State, the Member States concerned shall cooperate closely in the inspection referred to in Article 6(1) and in deciding on the appropriate measures in respect of any such discharge; (b) If the next port of call of the ship is a port of a State outside the Community, the Member State shall take the necessary measures to ensure that the next port of call of the ship is informed about the suspected discharge and shall request the State of the next port of call to take the appropriate measures in respect of any such discharge. 2. Where there is clear, objective evidence that a ship navigating in the areas referred to in Article 3(1)(b) or (d) has, in the area referred to in Article 3(1)(d), committed an infringement resulting in a discharge causing major damage or a threat of major damage to the coastline or related interests of the Member State concerned, or to any resources of the areas referred to in Article 3(1)(b) or (d), that State shall, subject to Part XII, Section 7 of the 1982 United Nations Convention on the Law of the Sea and provided that the evidence so warrants, submit the matter to its competent authorities with a view to instituting proceedings, including detention of the ship, in accordance with its national law. 3. In any event, the authorities of the flag State shall be informed.