The St. Lawrence Vessel Traffic Service (VTS) extends south from Sept-Îles to the upstream limits of the Port of Montreal.
All vessels over 100 tons and over 20 meters in length must be equipped with VHF radiotelephone sets and provide a permanent listening service on designated frequencies.
The VTS located in Les Escoumins (156.45, channel 9), Quebec City (156.55, channel 11 and 156.6, channel 12) and Montreal (156.5, channel 10) maintain a permanent listening watch on the above frequencies. These frequencies are reserved exclusively for the broadcasting of safety and traffic monitoring information.
The master of a vessel must obtain a permit from the appropriate regulatory center before entering waters under the jurisdiction of the vessel traffic control system. For a complete description of this system, refer to the Canadian Coast Guard Regional VTS Manager.