Seaway Notices address issues specific to a given navigation season, and serve to complement the regulations found in the Seaway Handbook. The notices (which take the form of general Seaway notices applicable to the entire St. Lawrence Seaway, and regional notices which may be applicable to the Montreal / Lake Ontario region or to the Welland Canal) are disseminated via e-mail broadcasts to subscribers.
Radio Messages contain information specific to the opening or the closing of the St. Lawrence Seaway navigation season. Radio messages are also disseminated via e-mail broadcasts to subscribers.
To subscribe free of charge to receive Seaway Notices and / or Radio Messages, click here.
- Radio Messages
Daily Radio Messages to Mariners (opening and closing navigation season)
- Notices to Shipping - Montreal / Lake Ontario
Seaway Notices to Mariners for the Montreal / Lake Ontario Section Only
- Notices to Shipping - Welland Canal
Seaway Notices to Mariners for the Welland Canal Only
- Seaway Notices
Seaway Notices to Mariners