Tariff of Tolls

The Great Lakes St. Lawrence Seaway Development Corporation (GLS) and the St. Lawrence Seaway Management Corporation (SLSMC) of Canada, under international agreement, jointly publish and presently administer the St. Lawrence Seaway Tariff of Tolls in their respective jurisdictions. The Tariff sets forth the level of tolls assessed on all commodities and vessels transiting the facilities operated by GLS and SLSMC. GLS is revising its regulations to reflect the fees and charges levied by SLSMC in Canada starting in the 2026 navigation season, which are effective only in Canada.