Marine Communications and Traffic
In Quebec, Marine Communications and Traffic Services (MCTS) provides services to the maritime community with four communications centers located in Montréal, Québec, Les Escoumins and Rivière-au-Renard.
The Montréal MCTS Center is located in Longueuil. It covers the navigable waters of the St. Lawrence River between the city of Tracy and the St. Lawrence Seaway. It also serves a large clientele of recreational boaters plying the waters of the Ottawa River, Rivière des Prairies, Rivière des Mille-Îles, Richelieu River, Saint-Louis Lake, Saint-François Lake, Lac des Deux-Montagnes and the stretch of the St. Lawrence extending to Yamachiche.
Two radar sites located on Charron Island and under the Jacques-Cartier Bridge enable staff at the Montréal MCTS Centre to track vessel movements. Radio coverage is provided by five sites equipped with VHF radio installations.
Deep-draft vessels are subject to special monitoring on account of the depth of water in the stretch between Tracy and Montréal. As a result, an under-keel clearance standard for this type of vessel is calculated and applied by officers at the Centre. Transit authorization for these vessels takes into account ship squat at a given speed and the safety margin required for navigation.
The Montréal MCTS Centre also provides Notices to Shipping services.
Located in the Port of Québec, this Centre serves the navigable waters of the St. Lawrence between Blanche Island and Tracy. VHF coverage is provided by six VHF sites. Radar coverage at the port of Québec helps to ensure efficient management and monitoring of maritime traffic.
The Centre is also responsible for applying the under-keel clearance standards in the Île d’Orléans Traverse du Nord sector and upstream from the Port of Québec. By establishing appropriate times for passage (passage windows), deep-draft vessels can transit safely with the tides.
The Québec MCTS Centre operates the Regional Alert and Warning Network covering Quebec. This Network is a communication system designed to allow Quebec's marine stakeholders to respond in a rapid, efficient and collaborative manner in the event of marine emergencies: federal and provincial governments and agencies, municipalities, rescue organizations, maritime industry, etc.
Toll free: 1-800-363-4735
This MCTS Centre is located on the north shore of the St. Lawrence River at Les Escoumins, about 15 miles east of the mouth of the Saguenay River. It serves the navigable waters of the St. Lawrence River, from the western tip of Anticosti Island to Blanche Island, and the Saguenay Fjord, downstream from the Port of Saguenay. The Centre has a VHF radio network encompassing eight sites and a radar surveillance station at Anse aux Basques.
The Centre is also tasked with regulating vessel traffic movement in the boarding and disembarking areas used by the pilots of Les Escoumins.
East of Les Escoumins, vessels are required to use a Traffic Separation Scheme during the ice-free navigation period. In winter, the Centre ensures ships follow the recommended ice routes.
The Rivière-au-Renard MCTS Centre is located on the Gaspe Peninsula, at the entrance to the St. Lawrence estuary, opposite Honguedo Strait. It serves the Gulf of St. Lawrence, from the western tip of Anticosti Island to Chaleur Bay, including the Magdalen Islands and the North Shore (from Havre-Saint-Pierre to Blanc-Sablon). Radio coverage is provided by 10 VHF sites and 3 MF sites.
During the ice navigation period, the Centre ensures that transiting ships receive and follow the recommended ice routes during their passage.
To view a chart corresponding to a Quebec MCTS Centre, click in the desired MCTS zone.
To get another format of the charts, please contact us..
For more information on Marine Communications and Traffic Services, visit the Canadian Coast Guard national website.