Navigation Rules


The “rules of the road” for waterways, dictating right-of-way, overtaking procedures, and collision avoidance; often covered extensively in boater education courses.

Related Terms

Lateral Marks vs. Cardinal Marks

Cardinal marks indicate direction relative to a hazard (north, south, east, west), while lateral ...

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Chart Reading

The skill of interpreting nautical charts, including water depth (soundings), contours, and navig...

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Inland vs. International Rules

Inland rules apply in many U.S. domestic waters, while international rules govern seaward of spec...

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Federal Regulations

Boating rules set by the US Coast Guard or other federal entities (e.g., EPA for marine pollution...

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Line-of-Sight Limitations

When obstructions (bridge walls, large vessels) block your view of approaching traffic or hazards...

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Mayday Call

The highest-priority distress signal via radio, indicating imminent danger to vessel or crew; mus...

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Safety Lanyard (Engine Cut-Off Switch)

A cord attaching the operator to a PWC or boat’s ignition, designed to stop the engine if the ope...

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Dam Lock Operations

Procedures for entering and exiting navigation locks near dams; boaters must follow lockmaster in...

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Buoy System

The arrangement of lateral or non-lateral buoys indicating safe channels, hazards, or controlled ...

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Give-Way Vessel

The boat required to alter course or slow down to avoid a collision with a stand-on vessel under ...

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Sound Signaling Devices

Horns, whistles, or bells used to communicate maneuvers (e.g., passing signals), signal distress,...

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Sail vs. Power Right of Way

Under most navigation rules, a sailing vessel has right-of-way over a power-driven vessel unless ...

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Marine Patrol

State or local law enforcement units patrolling waterways to enforce safety regulations, check re...

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Private Aids to Navigation (PATON)

Non-governmental markers (e.g., placed by yacht clubs or marinas) that must be approved by the Co...

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eLearning Modules

Individual lessons within an online boater course, covering topics like navigation aids, life jac...

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Trimaran or Catamaran Operation

Specific handling techniques for multi-hulled vessels, often more stable at rest but requiring ca...

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Spreader Lights

Elevated fixtures providing deck illumination on sailboats or larger craft. Boater ed warns of gl...

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Required Lighting at Night

Navigation lights (red and green sidelights, white sternlight, and masthead light) must be used f...

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Collision Avoidance

Strategies to prevent accidents, including early course changes, clear signals, and adherence to ...

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Aids to Navigation (ATON)

Structures or markers (e.g., lighthouses, range lights) guiding boaters through safe channels or ...

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Q Flag (Quarantine Flag)

A solid yellow flag historically used to indicate a vessel must clear customs/health inspections;...

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Wake Zones

Areas where boaters must minimize wake (e.g., “No Wake” or “Slow Speed” zones) near docks, swimmi...

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Lateral Markers

Buoys or daymarks indicating the edges of safe water (red-right-returning vs. green-left-returnin...

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Boat Handling Under Sail

Basics of operating a sailboat, including tacking, jibing, and reading wind direction; often cove...

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Waterway Markers

Buoys and signs that provide navigation guidance (e.g., regulatory markers, channel markers, haza...

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AIS (Automatic Identification System)

A transponder broadcasting a vessel’s position, speed, and course to other ships and coastal stat...

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Overnight Mooring (Placeholder)

(To appear in later parts) The process of anchoring or tying up to a buoy/dock for extended stays...

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Dive Flag

A red flag with a white diagonal stripe (in the U.S.) that indicates divers are below the surface...

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Wake Courtesy

Best practices for reducing wake near other boats, shorelines, or docks to prevent property damag...

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Distress Signals

Methods (flares, flags, sound-making devices, electronic signals) to alert others of an emergency...

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Vessel Classification

The categorization of boats by length or type (e.g., Class A: less than 16 ft, Class 1: 16–26 ft)...

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Personal Submersible Vehicles

Small, privately operated submarines or submersibles requiring specialized training and abiding b...

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Homeland Security Restrictions

Certain areas near dams, power plants, or military bases may be off-limits or heavily regulated f...

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Stand-On Vessel

In a crossing or meeting situation, the boat that must maintain its course and speed while the ot...

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VHF Radio

A marine radio used for communicating with other vessels, marinas, and the Coast Guard; used for ...

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Whale Watching Distance

Federal and state guidelines require maintaining safe distances (often 100 yards or more) from wh...

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Safe Speed

A velocity that allows adequate time to avoid collisions, considering visibility, traffic density...

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Marine Compass

A device indicating heading relative to magnetic north, essential for navigation in open water or...

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Marine Radar

An electronic device that detects objects or landmasses around a vessel by bouncing radio waves o...

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