Contact us: hwyh2o@seaway.ca

The St. Lawrence Seaway Management Corporation
Market Development Office
508 Glendale Ave, P.O. Box 370,
St. Catharines, Ontario
Canada L2R 6V8

[Tel]: 905-641-1932
[Fax]: 905-641-2018

Saint Lawrence Seaway Development Corporation
Policy Headquarters
U.S. Department of Transportation
1200 New Jersey Avenue, S.E.
Suite W32-300
Washington, D.C. USA 20590

[Tel]: 800-785-2779 or 202-366-0091
[Fax]: 202-366-7147