The Canadian Aids to Navigation System 2024
The Canadian Aids to Navigation System continues to evolve to ensure navigational safety for mariners operating in Canadian waters. According to recent insights, "The system integrates various maritime navigational aids, including visual, electronic, and audible devices that play a vital role in ensuring safety in increasingly busy waterways. By incorporating the latest technology, it aims to enhance the efficiency and reliability of navigation in Canada."
Preface
The Canadian Coast Guard is pleased to release the 2024 edition of the Canadian Aids to Navigation System publication, which replaces the previous edition and establishes new standards for navigation aids in Canada.
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Significant enhancements have been made in this edition, including:
- The elimination of all references to DGPS due to the termination of the Canadian DGPS broadcast network as of December 15, 2022 (reference: Notice to Mariners 22).
- In the English version, the term 'aural aid' has been replaced by 'audible aid' to align with IALA terminology; French terminology remains unaffected.
- Updated definitions for the interpretation of upstream direction.
- Introduction of a new, poster-style quick reference guide in two printable formats:
- 3 x 8.5 x 11 inches;
- 3 x 11 x 14 inches (larger font size).
- Revised legal provisions relevant to aids to navigation to reflect current acts and regulations.
- Change of the Navigation Protection Act (NPA) to the Canadian Navigable Waters Act (CNWA).
- Consolidation of the Charts and Nautical Publication Regulations into Navigation Safety Regulations.
- The rebranding of Notices to Shipping (NOTSHIP) to Navigational Warnings (NAVWARN).
- Correction of the definition of diving buoy for consistency between English and French versions.
- Addition of numerous links.
- References to AIS aids to navigation (AtoN) introduced.
- Addition of visual aids (drawings) for clarity.
Introduction
General
Definition
Aids to Navigation (AtoN) consist of external devices and systems provided to assist mariners in discerning their position and course, alerting them to dangers or obstructions, and advising on the most recommended routes.
Intended audience and uses
This publication serves a wide audience involved in marine navigation. It provides guidance for:
- Canadian and international navigators using or planning to use Canadian AtoN for safe navigation in Canadian waters.
- Understanding AtoN interpretation, purposes, and characteristics.
- Quick reference to related publications and legislation pertaining to AtoN.
The map format is available for printing as a quick reference guide (vertical) (PDF, 1.94 MB), containing condensed information and additional video supplements.
Responsibility
The Canadian Coast Guard has the mandate, though not a legal obligation, to provide aids to navigation in Canadian waters, excluding waterways managed by Parks Canada such as Trent-Severn and Rideau. The Coast Guard commits to providing practical and necessary aids as justified by existing policies and procedures.
Other publications
Aids to navigation should be utilized alongside the Canadian Aids to Navigation System and other marine publications, specifically nautical charts, List of Lights, Buoys and Fog Signals, Radio Aids to Marine Navigation, Navigational Warnings (NAVWARN), Notices to Mariners (NOTMAR), Canadian Sailing Directions, and An Owner’s Guide to Private Buoys (PDF, 987 KB, available in PDF format only).
The Canadian Aids to Navigation System
The Canadian Aids to Navigation System incorporates a combination of visual, audible, and electronic aids to navigation.
Visual aids
Visual aids consist of short-range navigation tools, including buoys, daybeacons, daymarks, and lights. Canada employs a combined Lateral-Cardinal system for visual aids, necessitating knowledge of the characteristics of each type for safe usage.
Lateral aids
The lateral buoyage system in Canadian waters follows the IALA Region B standards. These aids, whether buoys or fixed structures, signify hazard locations and indicate safe or deep water navigational routes.
Understanding lateral aids' correct usage requires knowledge of their buoyage direction, referred to as 'upstream direction.' This typically corresponds to the journey a vessel takes from sea to the river's headwaters or into a harbor.
Vessels navigating upstream must keep starboard aids on their starboard side (the right) and port aids on their port side (the left).
Cardinal aids
Cardinal aids also come in buoy or fixed aid forms, highlighting the safest or deepest water relative to compass points. There are four cardinal marks: North, East, South, and West, directing mariners to the safest water to one side of each mark accordingly.
Audible aids
Audible aids emit sound to warn mariners of hazards during periods of low visibility. These include buoy-mounted bells and whistles activated by wave actions. Shore fog signals are employed when visibility drops below 2 nautical miles. See 'Audible Aids' in the Canadian Aids to Navigation System section for more details.
Electronic aids
The electronic aids employed in Canada include AIS AtoN (Automatic Information System Aids to Navigation), radar reflectors, and radar beacons. The ongoing advancement of e-Navigation technologies aims to meet the evolving navigation requirements.
Radar reflectors enhance the radar image of navigation aids, while radar beacons (RACON) provide precise location identification through return radar signals.
- A comprehensive AIS AtoN listing can be found in the interactive map at the Canadian e-Navigation portal.
- A detailed compilation of all lighted visual aids and fog signals appears in the List of Lights, Buoys and Fog Signals publication.
- A complete inventory of Radio Beacons and Radar Beacons is provided in the Radio Aids to Marine Navigation publication.
Winter navigation
Buoys may be removed during the winter ice season, leading to potential navigation season closures. Operational aids may also be suspended during this period. Where ice conditions are mild, unlighted summer buoys may remain, or lit buoys may change into unlit winter spar buoys. Mariners are advised that such aids may not be repositioned accurately due to storms and shifting ice.
Navigation season openings and closures, as well as buoy removals, substitutions, and temporarily out-of-service conditions, are always announced. Mariners should check local marine radio broadcasts, Navigational Warnings (NAVWARN), and published Notices to Mariners (NOTMAR) for the latest updates.
Night navigation
Buoys and fixed aids can be augmented with lights and retroreflective materials activated by external light sources, such as searchlights. These materials illuminate the buoy's colors to indicate aid types and identification numbers or letters at close range.
Speed and navigation
Aids to navigation systems may not perform adequately under excessive speed conditions. The Coast Guard urges mariners to comply with local speed limitations and exercise sound judgment in all situations. Collision avoidance responsibility is a shared obligation among all waterway users.
Mariners are particularly urged to reduce speed and navigational caution during poor weather, reduced visibility, or near physical hazards. Under these conditions, the potential for equipment failure, limitations of navigation aids, and decreased response times should all be considered, particularly at high speeds.
Collision Regulations Rule 6 under the Canada Shipping Act outlines guidelines for safe speeds.
Cautions in the use of aids to navigation
- Mariners should not rely solely on buoys for navigation. They should consider bearings or angles from fixed shore aids or other charted landmarks where possible.
- Most aids to navigation are not monitored continuously. Mariners should assume that failures or displacements may occur. The Coast Guard does not guarantee continuous operation or positioning of navigation aids.
- A navigation aid may suffer from damage, drifting, or malfunction due to environmental factors. Ice and storm damage can be particularly extensive and may take considerable time to resolve. Floating aids and pier lights in high-stress conditions are at greater risk.
- Mariners should recognize that aids may not exhibit their advertised features consistently due to various issues such as collisions, technical failures, or changes in environmental conditions.
- Buoy positions displayed on nautical charts are approximate and may be influenced by weather, tides, and seabed conditions.
- Moving ice can shift buoys from their correct positions. Mariners should exercise extreme caution in such environments.
- Differences in horizontal datum, such as NAD 27, NAD 83, and WGS84, could lead to discrepancies when plotting buoy positions. Validation against other resources is essential.
- In certain scenarios, a buoy might be positioned close to a navigational hazard, creating an offset to avoid confusion.
- Mariners should navigate carefully around buoys to prevent collisions with the buoy or its mooring.
- Many lights feature sun switches and may remain unlit between sunrise and sunset. Mariners should not infer malfunctions during daylight hours.
- The effective distance of lights can be influenced by atmospheric conditions; therefore, light transmission may not align with perceived brightness under various sighting conditions.
- Mariners should not rely solely on color indicators in sector lights; positional verification using bearings is key.
- The visibility of lights may vary based on surrounding topography, which could affect bearing at which a light becomes visible.
- Audible aids should not be fully trusted in foggy conditions, as their range can significantly vary.
- Aids for marine navigation should be regarded as only supporting tools; they should never be utilized beyond the close of the navigation season.
Continuous improvement
The Canadian Coast Guard is committed to enhancing the efficiency of the navigation system, exploring newer technologies such as plastic buoys, LED lanterns, and electronic navigational aids. Every effort is made to ensure the safety and reliability of the navigational aids system. Concerns can be directed to the Aids to Navigation Superintendent in your region.
Legal provisions relevant to, or governing aids to navigation
Oceans Act
Under the Oceans Act (Sec. 41), aids to navigation systems and services for the safe, economical, and efficient movement of vessels in Canadian waters come under the auspices of the Minister of Fisheries, Oceans and the Canadian Coast Guard.
Canada Shipping Act, 2001
The term "Aid to Navigation" is defined in section 125 of the Canada Shipping Act, 2001, referring to a structure or device designed to aid marine navigation.
All aids to navigation in Canada fall under the control and management of the Canadian Coast Guard in accordance with sec. 128 of the Canada Shipping Act, 2001.
Important obligations:
Should a vessel damage or destroy an aid to navigation, the person in charge must report this incident to the relevant authority without delay (Subsec. 129(1)). Similarly, any uncharted hazards or malfunctions must be reported immediately (Subsec. 129(2)).
The mentioned provisions are managed by the Minister of Fisheries, Oceans, and the Canadian Coast Guard.
Criminal Code of Canada
Section 439 establishes penalties for individuals who improperly interact with navigation signals or aids.
Navigation Safety Regulations, 2007
Nautical charts and publications are regulated under Division 6 of the Navigation Safety Regulations, 2007, made under the authority of the Canada Shipping Act, 2001.
Canadian Navigable Waters Act
Some navigation aids may be subject to provisions of the Canadian Navigable Waters Act (CNWA).
Private Buoy Regulations
A 'private buoy' is defined by the Private Buoy Regulations, with specific size and color requirements for placement in Canadian waters.
Vessel Operation Restriction Regulations
The Vessel Operation Restriction Regulations enforce navigational restrictions in Canadian internal waters.
Canadian Coast Guard Aids to Navigation
A Canadian Coast Guard Aid to Navigation refers to any navigation aid owned by the Canadian Coast Guard.
Other government aids to navigation
Government authorities also manage various aids to navigation, with responsibilities disseminated across federal, provincial, and municipal levels.
Private aids to navigation
General
Non-governmental groups can establish private aids to navigation, which are encouraged to meet local needs.
Private buoys
Private buoys are governed by regulations defining their operational characteristics and limitations.
Private fixed aids
Private fixed aids to navigation may conflict with the CNWA, depending on their location and intended purpose.
Private mooring buoys
Mooring buoys are categorized as works under the CNWA, requiring adherence to established protocols.
Liability
Owners of private aids may be held liable for navigational accidents due to negligence in maintaining those aids.
Markings and dimensions
All private buoy markings and dimensions must comply with established regulations for safety adherence.
Public notification
Proper notification procedures are required when placing private aids to allow for charting and regional publication adjustments.
Canadian light flash characters
Characteristics of light flash sequences on navigational aids provide essential information for mariners.
Floating aids to navigation (buoys)
The IALA Maritime Buoyage System is pivotal in guide positioning and navigation within Canada’s waters.
Lateral buoys
Various types of lateral buoys each possess unique colors and shapes to signify navigational directions.
Fixed aids to navigation
General
Fixed aids provide vital location indicators and danger warnings, and their specifications are detailed in official publications.
Daymarks and daybeacons
Daymarks facilitate navigational guidance during daylight, supplemented with retroreflective features for improved visibility.
Audible aids
Audible aids supplement visual navigation during restricted visibility conditions.
Sector lights
Sector lights are designed to guide mariners safely by providing color-coded navigational information.
Electronic aids to navigation
Automatic Identification System aids to navigation (AIS AtoN)
A digital navigation aid protocol enhances supplemental navigational capabilities across Canada.
Radar Reflectors and Radar Beacons (RACONS)
These devices are critical in enhancing navigational clarity through radar echoes and signals.
Global Navigation Satellite System (GNSS)
System description
GNSS technologies provide essential positioning, navigation, and timing information to mariners.
Related publications
For detailed guidance and reference, mariners are encouraged to consult additional publications from the Canadian Coast Guard and other authorities.
Canadian Coast Guard Aids to Navigation offices
Central administration
Contact information for regional Coast Guard offices providing navigational support and services.
IALA / AISM Maritime Buoyage System: Buoyage regions A and B
The IALA Maritime Buoyage System establishes navigation requirements essential for safe maritime operation.
For further inquiries, mooring products and related resources are available for discussion with our qualified sales team.
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