Article 8
Monitoring of the compliance of ships with vessel traffic services Member States shall monitor and take all necessary and appropriate measures to ensure that: (a) ships entering the area of applicability of a VTS operated by one or more States, of which at least one is a Member State, within their territorial sea and based on the guidelines developed by the IMO, participate in, and comply with, the rules of that VTS; (b) ships flying the flag of a Member State or ships bound for a port of a Member State and entering the area of applicability of such a VTS outside the territorial sea of a Member State and based on the guidelines developed by the IMO, comply with the rules of that VTS; (c) ships flying the flag of a third State and not bound for a port in a Member State entering a VTS area outside the territorial sea of a Member State, follow the rules of that VTS wherever possible. Member States should report to the flag State concerned any apparent serious breach of those rules in such a VTS area.