2025 Traffic management measures to protect North Atlantic Right Whales in Canada

Transport Canada (TC) – May 16, 2025 – This notice to fish harvesters is issued in accordance with the 2025 traffic management measures to protect North Atlantic right whales (NARW) in Canada. 

Due to changing migration patterns of North Atlantic right whales and their increased presence in the Gulf of St. Lawrence, the Government of Canada has set seasonal speed restrictions in specific zones. These speed restrictions zones are defined as:

• static zones
• dynamic shipping zones
• seasonal management areas
• voluntary seasonal slowdown zone
• restricted area

See the map below for details.

Note: Vessels must follow Navigational Warnings outlining the speed restrictions. The Interim Order No. 2 for the Protection of North Atlantic Right Whales (Eubalaena Glacialis) in the Gulf of St. Lawrence, 2025 enables the issuance of Navigational Warnings (NAVWARNs) imposing speed restrictions and navigation restrictions.

Speed restriction zones are described in monthly Notices to Mariners (NOTMARs), which are published by the Canadian Coast Guard. The status of these zones is broadcasted through NAVWARNs, which are published by the Coast Guard’s Marine Communications and Traffic Services Centres.

Changes to speed restriction zones and measures

Based on consultations with industry and on scientific data, changes to the speed restriction zones are effective since April 16th, 2025, while the restricted area will be implemented based on whale presence.

A voluntary seasonal slowdown of 10.0 knots over the ground spanning from Cabot Strait (a line running from Cape North NS to Cape Ray NL) to the eastern edge of dynamic shipping zone E will be implemented at the beginning and end of the North Atlantic right whale season (Spring and fall).

Please check the latest NAVWARN for all speed restrictions currently in effect.

Speed Restriction Measures for 2025

These restrictions are in effect from April 16 to June 14, 2025.

Exemptions

The following exemptions will apply to all measures:

• A vessel in distress or providing assistance to a person or vessel in distress.
• A government vessel being used:
• for law enforcement activities;
• for search and rescue operations; or
• to ensure the competency of the crew or the operational readiness of the vessel or crew with respect to such activities or operations.

Static zones

In the static zones, all vessels above 13 m in length overall must proceed at a speed of not more than 10.0 knots over the ground.

Exceptions

Air cushion vessels operated by or on behalf of the Government of Canada that are engaged in ice-clearing activities from April to June in and around Chaleur Bay are exempted when in operation.

36.57 m (20-fathom) shallow water protocol exclusion

Vessels engaged in any commercial fishing activity may proceed at a safe operational speed in waters not more than 36.57 m (20 fathom) deep within the static zones.

If a notice to fish harvesters and a NAVWARN state that at least one North Atlantic right whale has been detected in waters within a static zone or its associated buffer zone that are not more than 36.57m deep, the speed limit of 10.0 knot over the ground will apply in the concerned zone(s) to all vessels above 13m in length overall (LOA). The speed restriction will be in effect for 15 days after the day on which the whale was detected. The buffer zones associated with the static zones are located 5 miles north and south of their adjacent border in waters less than 36.57m deep.

Please refer to Schedule 1 for the coordinates of the northern static zone and the southern static zone.

Dynamic shipping zones

There are 5 dynamic shipping zones (DSZ) located in the routeing systems north and south of Anticosti Island: A, B, C, D and E

When the Government of Canada detects a North Atlantic right whale in a dynamic shipping zone:

• All vessels will be notified via a NAVWARN; and
• Vessels above 13 m in length overall must proceed at a speed of not more than 10.0 knots over the ground within that zone.

Please refer to Schedule 2 for the coordinates of the dynamic shipping zones.

Speed restrictions in the dynamic shipping zones

The detection of North Atlantic right whales in one or more dynamic shipping zone(s), or in their buffer zones, will trigger a speed restriction in the concerned zone(s). The speed restriction in the dynamic shipping zone(s) will be in effect for 15 days from the date of detection. In the event of a new North Atlantic right whale detection occurring in the last 7 days of the 15-day slowdown period, the speed restriction will be extended for an additional 15 days from the date of the new detection. This would continue until no NARW are detected.

When a NAVWARN is issued implementing a speed restriction in one or more dynamic shipping zone(s), vessels above 13 m in length (LOA) must not exceed a speed of 10.0 knots over the ground. Within any dynamic zone that is not subject to a speed restriction, mariners may proceed at a safe operational speed. Mariners are encouraged to take into consideration the potential for their vessel striking North Atlantic right whales when considering a “safe operational speed” during navigation.

Seasonal management areas

Seasonal management area 1 (SMA-1) and seasonal management area 2 (SMA-2) are speed restriction areas located north and south of dynamic shipping zone E, respectively.

Within seasonal management areas, vessels above 13 m in length (LOA):

• must restrict their speed so as not to exceed 10.0 knots over the ground from April 16th to June 14th, 2025.

Please refer to Schedule 3 for the coordinates of seasonal management area 1 and 2.

Restricted area

In the summer months, an important proportion of the total North Atlantic right whale population gathers for feeding and surface activity near the Shediac Valley. Since this makes the North Atlantic right whale more susceptible to vessel collisions, a mandatory restricted area will be implemented in and near the Shediac Valley and will come into force once 80% of the restricted area is closed to fishing for the season as per the Department of Fisheries and Ocean’s right whale closure protocol. The restricted area will be lifted once the North Atlantic right whale detections decrease in the restricted area.

The size and location of the area are determined based on historical detection data of North Atlantic right whales. All necessary details can be found in the Interim Order No. 2 for the Protection of North Atlantic Right Whales (Eubalaena Glacialis) in the Gulf of St. Lawrence, 2025. Triggering and lifting of the restricted area will be communicated to mariners through NAVWARNs and notices to fish harvesters.

Vessels above 13 m in length will be required to:

• avoid the area unless they are part of the exceptions listed in the Interim Order No. 2 for the Protection of North Atlantic Right Whales (Eubalaena Glacialis) in the Gulf of St. Lawrence, 2025;

• transit the area at a speed not exceeding 8.0 knots over the ground if they are included in the exception list.

The following exceptions will apply to the restricted area. The vessels listed below can travel through the area at not more than 8.0 knots over the ground:

• vessel being used for commercial fishing;
• vessel being used for fishing under the authority of a licence issued under the Aboriginal Communal Fishing Licences Regulations;
• vessel being used for research purposes on behalf of the Government of Canada;
• vessel involved in research relating to right whales as part of a project that has received funding from the Government of Canada;
• vessel being used as part of the Department of Fisheries and Oceans’ Marine Mammal Response Program to assist a marine mammal or sea turtle in distress or to access or retrieve a deceased marine mammal or sea turtle;
• vessel authorized by the Government of Canada to retrieve or identify the location of abandoned or lost fishing gear;
• vessel involved in pollution response operations;
• vessel avoiding immediate or unforeseen danger.

The following vessels can travel through the restricted area at a speed over 8.0 knots, but below 10.0 knots over the ground as required by the static speed restriction zone:

• A vessel being used by an employee of the Government of Canada or peace officer who is performing their duties.

Please refer to Schedule 4 for the coordinates of the restricted area.

Inclement weather exception

Mariners will be notified in advance via a NAVWARN should the speed restriction status change in any zone or area, due to inclement weather.

Within any zone or area that is not subject to a speed restriction due to adverse weather conditions, mariners may proceed at a safe operational speed. Mariners are however encouraged to take into consideration the potential for their vessel striking North Atlantic right whales when considering a “safe operational speed” during navigation.

*Non-excepted vessels are still prohibited from transiting through the restricted area.

Voluntary seasonal slowdown in Cabot Strait

To coincide with the North Atlantic right whales entering and exiting the Gulf of St. Lawrence in large numbers, a voluntary seasonal slowdown is being put in place in Cabot Strait from April 16th to June 24th, 2025, and from September 3rd to November 15th, 2025.

• During these periods, vessels above 13 m in length are requested to voluntarily reduce their speed to not exceed 10.0 knots over the ground.

Please refer to Schedule 5 for the coordinates of the voluntary seasonal slowdown in the Cabot Strait.

Map of the Gulf of St. Lawrence

The following map shows

• static zones, in pink
• dynamic shipping zones, in green
• seasonal management areas, in dark pink
• voluntary seasonal slowdown zone, in grey
• restricted area, in dark blue
• DFO 36.57 m (20 fathom) shallow water protocol line, in dark blue

Roseway Basin – Area to be Avoided

The Roseway Basin, located approximately 20 nautical miles south of Cape Sable Island, Nova Scotia, is a critical habitat for North Atlantic right whales, which have been observed to gather in the area on a seasonal basis in Canadian waters. This critical habitat is also located near key shipping routes. In 2007, Canada, with the support of many groups with varied interests, proposed to the International Maritime Organization (IMO) the establishment of a seasonal Area to be Avoided in the Roseway Basin to protect North Atlantic right whales, which IMO accepted and adopted.

To reduce the risk of vessels colliding with North Atlantic right whales, it is recommended that vessels of 300 gross tonnages and more, in transit during the period of June 1 through December 31, avoid the Roseway Basin area. Smaller vessels are also encouraged to avoid passage through this area. If passage is necessary within the Area to be Avoided, it is recommended that all mariners decrease their vessel speed to no more than 10 knots, when safe to do so.

Please refer to Schedule 6 for the coordinates of Roseway Basin.

Bay of Fundy – Voluntary Slowdown

The Grand Manan Basin located in the Bay of Fundy is identified as a critical habitat for the North Atlantic right whale. When North Atlantic right whales are detected in the Bay of Fundy shipping lanes and near the Grand Manan Basin area, the Fundy Traffic will ask vessels to voluntarily slowdown to 10 knots via VHF channel 12 or 14 at corresponding Calling-in-Points.

NAVWARN broadcasts

The CCG-MCTS issues and publishes NAVWARNs:

• by radio broadcast; and
• online at Canada’s Maritime Information Portal and its Navigational Warnings site, using the North Atlantic right whale category.

Mariners must ensure they have accurate and up-to-date information about the protection of the North Atlantic right whale, as in all applicable NOTMARs and NAVWARNs.

For the North Atlantic right whale speed restriction, the NAVWARN that is currently in effect will be provided to vessels subject to the Vessel Traffic Services Zone Regulations or the Eastern Canada Vessel Traffic Services Zone Regulations:

Outbound vessels

• at Calling-in-Point 10 (St-Laurent); or
• upon a departure downstream from the Quebec pilot station (including the Saguenay River, Chaleur Bay, Miramichi Bay, etc.)

Inbound vessels

• when a clearance to enter Canadian waters is granted

Vessels in transit

• at the last reporting point prior to entering the speed restriction area; and/or
• at 10 nautical miles prior to entering the speed restriction zone

For those vessels not subject to the above-mentioned regulations, vessel operators are required to monitor broadcasts by the Canadian Coast Guard’s Marine Communications and Traffic Services (MCTS) network for the most up to date information. For marine radio frequencies and broadcast times, information may be found in the Radio Aids to Marine Navigation publication.

Aids to navigation

The Canadian Coast Guard broadcasts virtual Automatic Identification System (AIS) aids to navigation (AIS AtoN) in specific areas. These aids may notify mariners of dynamic shipping zones and/or seasonal management areas subject to speed restrictions.

Each dynamic shipping zone is delimited by four virtual AIS AtoN, which can be displayed on a ship’s navigation equipment, such as:

• Electronic Chart Display and Information System (ECDIS)
• Electronic Chart System (ECS)
• RADAR
• Minimum Keyboard Display (MKD)
• Electronic Nautical Chart (ENC)

The Canadian Coast Guard broadcasts the virtual AIS AtoN only when a speed restriction is in effect in one or more testing zones.

Mariners must select the virtual AIS AtoN symbol to view a message such as “SectA1 Spd Lim 10 kt.” This message refers to a speed restriction in effect for a specific zone.

Note: This system is not the primary way we communicate this information.

Compliance and enforcement

You must comply with the NAVWARNs broadcasted and published by the Canadian Coast Guard related to any Interim Order made pursuant to the Canada Shipping Act, 2001, aimed at regulating the navigation for the purposes of protecting the North Atlantic right whales. 

If you do not comply with instructions in the NAVWARNs or in the Interim Orders, you could face:

• administrative monetary penalties up to a maximum of CAN $250,000; and/or
• penal sanctions under the Canada Shipping Act, 2001 is liable on summary conviction to a fine of not more than CAN $1,000,000 or to imprisonment or a term of not more than 18 months, or to both.

If your vessel appears to have violated the speed restriction, Transport Canada Marine Safety inspectors will review all information provided through AIS and seek an explanation from the master.

For any deviation, Transport Canada will review and consider reasons such as

• navigating to ensure vessel safety
• weather conditions
• force majeure (unforeseeable circumstances)
• responding to emergencies

Report a North Atlantic right whale sighting

If you see live, free-swimming whales:

• Email: DFO.GLFWhales-BaleinesGLF.MPO@dfo-mpo.gc.ca
• When reporting sightings of North Atlantic right whales, you must include:
  • GPS location (latitude and longitude)
  • date and time of sighting
  • number of marine mammals
  • photograph(s)/video(s) collected
  • if possible, behavior of marine mammals observed (ex., feeding, travelling, diving)

If you see a North Atlantic right whale (and all other marine mammals) entangled, injured or dead, please document and report it immediately to the regional Response Network.

• When documenting you should collect:
  • GPS location (latitude and longitude)
  • date and time of sighting
  • number of marine mammals
  • photograph(s)/video(s)
  • description of the incident to provide to the Response Network

Southern part of the Gulf of St. Lawrence (New Brunswick, Nova Scotia & Prince Edward Island)
Marine Animal Response Society
Telephone: 1-866-567-6277

Newfoundland and Labrador
Whale Release and Strandings Newfoundland and Labrador (Tangly Whales Inc.)
Telephone: 1-888-895-3003 or 1-709-895-3003

Quebec
Réseau québécois d’urgences pour les mammifères marins (RQUMM)
Telephone: 1-877-722-5346

Report a marine mammal or sea turtle incident or sighting

For more information on reporting other marine mammal or sea turtle sighting and incidents: Report a marine mammal or sea turtle incident or sighting.

Please consult Whale Insight for the latest right whale observations.

Transport Canada Whale Coordinator
Stéphanie Talbot
TC.MSSWhales-BaleinesSSM.TC@tc.gc.ca

Schedule 1: Static Zones

Schedule 2: Dynamic Shipping Zones

Schedule 3: Seasonal Management Areas

Schedule 4: Restricted Area

Schedule 5: Voluntary Seasonal Slowdown Zone

Schedule 6: Roseway Basin