Seaway Notices

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.

To subscribe free of charge to receive Seaway Notices and / or Radio Messages, click here.

#11 – Restrictions to Ship Inspections

June 10, 2019

#10 – Transit Requirements under High Flow Conditions (Cancelled 2019/08/28)

June 4, 2019

#9 – Maximum Allowable Drafts – Montreal Lake Ontario Section

April 3, 2019

#8 – Notification Requirement for Use of Lines at HFM Locks

March 22, 2019

#7 – Reporting Dangerous Cargo

March 19, 2019

#6 – Tie-Up Service at Lock Approach Walls

March 19, 2019

#5 – Notification Requirement for Use of Lines at HFM Locks (Cancelled 2019/03/22)

March 19, 2019

#4 – General Notice

March 19, 2019

#3 – Communications

March 19, 2019

#2 – Mooring and Casting off In Locks

March 19, 2019

#1 – Opening of the 2019 Navigation Season and Maximum Allowable Drafts

February 21, 2019

#14 – Closing of the 2018 Navigation Season – Revised

December 27, 2018

#13 – Closing of the 2018 Navigation Season – Revised (Cancelled 2018/12/27)

November 23, 2018

#12 – Closing of the 2018 Navigation Season (Cancelled 2018/11/23)

November 16, 2018

#11 – Use of Engines to Proceed to a Vessel’s Final Mooring Position (FMP)

August 17, 2018

#10 – AIS Navigation Status

June 29, 2018

#9 – Notification Requirement for Use of Lines at HFM Locks

June 25, 2018

#8 – Maximum Allowable Drafts – Montreal Lake Ontario Section

April 3, 2018

#7 – SLSMC Security Monitoring

March 26, 2018

#5 – Notification Requirement for Use of Lines at HFM Locks (Cancelled 2018/06/25)

March 19, 2018

#4 – General Notice

March 19, 2018

#3 – Communications

March 19, 2018

#2 – Mooring and Casting off In Locks

March 19, 2018

#1 – Opening of the 2018 Navigation Season and Maximum Allowable Drafts

February 20, 2018

#28 – Closure of the 2017 Navigation Season

January 12, 2018

#27 – Closing of Navigation 2017 – Changes in Special Agreement Date and Closing Date for the Welland Canal

December 29, 2017

#26 – Closing of the 2017 Navigation Season

November 21, 2017

#25 – SLSMC Security Monitoring

September 21, 2017

#24 – Transit Requirements under High Flow Conditions – Cancelled

September 15, 2017

#23 – Decreased Outflows – Montreal Lake Ontario Section

August 24, 2017