Patrol vessels

The Harbour Coordination Center has 3 VHF channels:
• VHF 11 for traffic issues, call sign Harbour Coordination Center;
• VHF 14 for operational issues, call sign Harbour Coordination Center;
• VHF 19 for shipping messages - alternative channel, call sign Harbour Coordination Center.

Communication guidelines and VTS

• VTS Communication Procedure 2012
• Sea shipping: see Port Information Guide (PDF) 

Communication at bridges and locks

Via assigned VHF channels and telephone numbers. Consult the section Bridges and locks