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Agency

Saint Lawrence Seaway Development Corporation

The Saint Lawrence Seaway Development Corporation was established by the Saint Lawrence Seaway Act of May 13, 1954 (33 U.S.C. 981-990), and became an operating administration of the Department of Transportation in 1966.
The Corporation, working cooperatively with the Saint Lawrence Seaway Management Corporation (SLSMC) of Canada, is dedicated to operating and maintaining a safe, reliable, and efficient deep draft waterway between the Great Lakes and the Atlantic Ocean. It ensures the safe transit of commercial and noncommercial vessels through the two U.S. locks and the navigation channels of the Saint Lawrence Seaway System. The Corporation works jointly with SLSMC on all matters related to rules and regulations, overall operations, vessel inspections, traffic control, navigation aids, safety, operating dates, and trade development programs.

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