Canadian and U.S. Seaway Corporations Open Waterway to Mandatory AIS

March 28, 2003

Cornwall, March 28, 2003 – The St. Lawrence Seaway Management Corporation (SLSMC) and the U.S. Saint Lawrence Seaway Development Corporation (SLSDC) will open the binational waterway’s 45th navigation season March 31 in Montreal requiring commercial vessels to use the Automatic Identification System (AIS). A transponder-based system employing mature global positioning system (GPS) and differential GPS technology that transmits data on VHF frequencies, AIS promises to improve safety, security and efficiency on the St. Lawrence Seaway from its entry point at St. Lambert Lock to Long Point, Ontario on Lake Erie.

The St. Lawrence Seaway is the first inland waterway in North America to employ this technology as a requirement for transit.

“AIS represents a significant improvement in marine transportation navigation, integrating vital navigation data long available through our Vessel Traffic Control Centers with electronic chart display technology at the fingertips of officers on the bridge, said SLSDC Administrator Albert Jacquez.” As a result, captains, mates and pilots receive information on the exact location in any weather of ship traffic from name, location, size and direction as well as detailed data on currents, windspeed, water levels, and lock order turns.

SLSMC President and CEO Guy Véronneau, agreed with Jacquez on the cardinal significance of AIS. “Requiring commercial vessel traffic to use AIS signals the Seaway’s commitment to enhancing efficiency and improving traffic scheduling,” said Véronneau. “With AIS, Seaway employees can safely and efficiently schedule lockages and tie-up services as well as inspections and pilotage requirements with more precision.

The AIS uses data from ship-to-shore, shore-to-shore, and shore-to-ship, thereby enabling a constant two-way communication between mariners and the three Seaway VTCCs. Originally developed primarily for safety reasons, AIS has become increasingly of interest to maritime security officials in the post 9/11 environment as it offers an ability for them to track with precision any vessel carrying the transponder.

In the near future, permanent installation of AIS equipment will be required onboard commercial vessels in the entire Great Lakes St. Lawrence Seaway System from the Lakehead in Duluth, Minnesota, to traffic entering the Gulf of St. Lawrence on the Atlantic. Adoption of the technology approved by the International Maritime Organization in London was embraced early on by the Canadian Shipowners Association and the Shipping Federation of Canada, both of which provided technical and financial assistance. The Department’s Volpe National Transportation Systems Center served as technical contractor for development of the AIS project begun almost a decade ago. AIS will soon be required on commercial vessels worldwide.

Specific details on AIS requirements for ships entering the Seaway may be accessed through the binational website ( Technical experts are available to answer questions.