Saint Lawrence Seaway Management Corporation

The St. Lawrence Seaway Management Corporation (SLSMC), formerly known as the St. Lawrence Seaway Authority, is a nonprofit Canadian Corporation established in 1998 by the government of Canada, in partnership with Seaway users and other stakeholders, in order to ensure safe and efficient marine traffic. As dictated by the 1998 Canada Marine Act, the Corporation manages and operates the assets of the Crown entrusted to St. Lawrence Seaway, which consists of lands, Canals and 13 of the 15 locks between Montreal and Lake Erie, for the government under a long-term agreement with Transport Canada".

The Corporation’s activities include traffic management, navigation aids, safety, environmental programs, trade development, assets maintenance and renewal. The St. Lawrence Seaway Management Corporation caters to the needs of shipping interests, ports, marine agencies, and provincial and state jurisdictions.

The St. Lawrence Seaway Management Corporation head office is based in Cornwall, Ontario and has additional regional offices in Saint-Lambert, Quebec, and St. Catharines, Ontario, Canada.

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