Most of the public guidance on Transport Canada's Marine Safety Management System Regulations focuses on passenger vessels: charter boats, water taxis, tour cruises. If you operate a towboat, you may have read through that material and assumed the regulations did not apply to you, or assumed your situation was straightforward enough that you could figure it out on your own.
Neither assumption is safe. Towing vessels have their own classification rules, their own deadlines, and their own compliance path under the MSMSR. This article explains what you actually need to know.
Does the MSMSR apply to towing vessels?
Yes. The Marine Safety Management System Regulations (MSMSR, SOR/2024-133) apply to most Canadian commercial vessels, and towing vessels are explicitly included. If you operate a towboat commercially in Canadian waters, you are subject to the regulations regardless of vessel size.
The MSMSR does not apply to pleasure craft, fishing vessels 24.4 metres or less and 150 gross tonnage or less, or vessels without mechanical propulsion that do not carry passengers. Commercial towing operations fall outside all of those exemptions.
Your vessel class under the MSMSR
The MSMSR classifies vessels into five classes. Where a vessel falls determines its requirements and its compliance deadline. For towing vessels, the relevant classification rule is straightforward: towing vessels are Class 4B, regardless of their gross tonnage, as long as they are 15 GT or less.
Class 4B covers Canadian vessels that are not passenger-carrying vessels, are 15 gross tonnage or less, and include towing vessels specifically named in the regulations. Towing vessels over 15 GT fall under Class 2, 3, or 4A depending on their size and are subject to different requirements and earlier deadlines. This article addresses the Class 4B path.
Your compliance deadline
This is where most towing vessel operators get caught off guard. There is not one Class 4B deadline for towboats. There are two, and they are determined by vessel length.
| Vessel type | Deadline |
|---|---|
| Towboats of 15 GT or less, over 7 metres long | First Certificate of Registry anniversary after July 2, 2025 |
| Towboats of 15 GT or less, up to 7 metres long | First Certificate of Registry anniversary after July 2, 2026 |
The deadline is not a fixed calendar date. It is tied to your vessel's Certificate of Registry anniversary. If your towboat is over 7 metres and your registry anniversary falls in August 2025, your deadline was August 2025. If it falls in March 2026, then the deadline will be March 2026. Many operators in this category are already past their deadline.
Your Certificate of Registry anniversary is the controlling date. If your vessel is over 7 metres, do not assume you have time remaining. Pull your certificate and confirm your anniversary date before doing anything else.
Same compliance path, different content
Here is what surprises most towing vessel operators when they sit down to work through this: the compliance path for a Class 4B towboat is identical to the compliance path for a Class 4B passenger vessel. The same forms, the same process, the same Transport Canada review timeline.
What is different is the content inside your Safety Management System. An SMS written for a charter fishing boat reflects passenger handling, emergency musters, lifejacket procedures, and passenger communication. An SMS written for a towing vessel reflects something entirely different: tow line management, load assessments, towing hazard identification, barge handling procedures, emergency disconnect protocols, and the specific risks that come with pushing or pulling load through commercial waterways.
The compliance path for Class 4B is as follows:
- Develop a Safety Management System that meets MSMSR requirements and accurately reflects your towing operations
- Keep the SMS on board your vessel at all times
- Complete Form 85-0547A (Declaration of Initial Compliance) and Form 85-0547B
- Submit both forms to Transport Canada
- TC reviews your submission
What your SMS needs to cover
The MSMSR sets out the required elements of a compliant SMS. For towing vessels, those elements need to reflect the actual nature of towing operations. A generic or passenger-oriented SMS will not hold up to a TC inspector's review. Your SMS should address:
Vessel and operations documentation
- Description of your vessel, its towing configuration, and the types of towing work you perform
- Routes operated and waters transited
- Crew structure, responsibilities, and minimum safe manning
Hazard identification specific to towing
- Tow line and bridle inspection, load limits, and failure procedures
- Load assessment and weight distribution for barge or tow
- Hazards associated with specific towing configurations (alongside, astern, push)
- Visibility and manoeuvrability limitations when under tow
- Risk of tow separation and emergency disconnect procedures
Emergency procedures
- Man overboard response
- Fire aboard the tug and aboard the tow
- Tow line failure or separation at sea
- Grounding or collision while under tow
- Crew injury with tow underway
Maintenance and inspection records
- Scheduled maintenance program for the vessel and towing gear
- Tow line and hardware inspection logs
- Record-keeping requirements under MSMSR
Incident reporting and review
- Internal reporting process for incidents, near-misses, and hazards
- Corrective action tracking
- Annual review of the SMS
A TC inspector boarding your vessel will look at whether your SMS actually describes how you operate, not whether you have a document that checks boxes. Generic templates borrowed from passenger vessel guidance will not reflect your towing operations and will not satisfy that review.
The steps, in order
| Step | What to do |
|---|---|
| 1 | Confirm your deadline. Pull your Certificate of Registry and identify your anniversary date. If your vessel is over 7 metres and your anniversary has already passed, you are already non-compliant and should move immediately. |
| 2 | Develop your SMS. Build a Safety Management System that reflects your actual towing operations: your vessel, your crew, your routes, your towing configurations, and the specific hazards of your work. |
| 3 | Place the SMS on board. Your SMS must be kept on the vessel and accessible to crew. |
| 4 | Complete Forms 85-0547A and 85-0547B. These are Transport Canada's Declaration of Initial Compliance forms for Class 4B operators. |
| 5 | Submit to Transport Canada. Submit both completed forms to your regional TC marine safety office. TC will review your submission within 45 business days, though current backlogs are running closer to 13 weeks. |
Getting help
The compliance path for towing vessels is the same as for passenger vessels. What is not the same is the knowledge required to build an SMS that accurately reflects towing operations and will hold up when a TC inspector comes aboard.
Aurora Marine Safety Group works with commercial vessel operators across Canada, including towing vessel operators. We develop SMS documentation that reflects how your operation actually works, handle the TC submission process, and keep the process as straightforward as possible.
If your deadline has passed or is approaching, contact AMSG to talk through your situation. The first call is free.