Lateral Markers: Colors, Numbers, And Shapes - Boat Ed

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Course Outline

  • Unit 1: Know Your Paddlecraft
    • Topic 1: The Basics
      • Video: An Introduction to Paddling
      • Parts of a Canoe
      • Parts of a Kayak
      • Parts of a Stand-Up Paddleboard
    • Topic 2: Paddlecraft Characteristics
      • Types of Canoes and Kayaks
      • Types of Stand-Up Paddleboards
      • Paddleboard Fins
      • Hull Shapes: Bottom Shapes
      • Hull Shapes: Side Shapes in Canoes
      • Hull Shapes: Rocker Shape
      • Hull Materials
      • Length and Width
      • Weight
      • Other Stand-Up Paddleboard Characteristics
      • Choosing a Kayak Cockpit Size
    • Topic 3: Selecting Your Paddle
      • Your Paddle
      • Canoe Paddles: Length
      • Canoe Paddles: Shaft
      • Kayak Paddles
      • Kayak Paddles: Blade Width
      • Kayak Paddles: Symmetrical vs. Asymmetrical Blades
      • Kayak Paddles: Flat vs. Spoon Blades
      • Stand-Up Paddleboard Paddles
  • Unit 2: Before Getting Underway
    • Topic 1: Your Paddlecraft's Capacity
      • Knowing Your Paddlecraft's Capacity
      • Sample Capacity Plate
      • Calculating a Boat's Capacity
    • Topic 2: Float Plans
      • Float Plan for Short Outings
      • Float Plan for Extended Outings
    • Topic 3: Transporting Your Paddlecraft
      • Choosing a Cartop Carrier Rack
      • Mounting a Paddlecraft on a Cartop Rack
      • Mounting a Canoe or Kayak
      • Mounting a Stand-Up Paddleboard
      • More About Straps
      • Video: Transporting Your Paddlecraft
      • Using a Pickup for Transportation
      • Transporting a Motor
    • Topic 4: Conducting a Pre-Departure Check
      • Pre-Departure Checklist
      • Video: Preparing for Paddling
    • Topic 5: Dressing for a Paddlecraft Trip
      • Selecting Your Clothing
      • Selecting Your Clothing: First Layer
      • Selecting Your Clothing: Second Layer
      • Selecting Your Clothing: Outer Garment
      • Selecting a Hat or Helmet
      • Selecting Appropriate Footwear
      • Selecting Gloves
      • Selecting a Leash
    • Topic 6: Using a Vessel Identification Sticker
      • Vessel Identification Sticker
    • Topic 7: Loading Gear in a Paddlecraft
      • General Loading Information
      • Loading Gear in a Kayak
      • Additional Equipment
      • Video: Loading Your Boat
    • Topic 8: Carrying a Paddleboard
      • Carrying a Paddleboard to the Water
    • Topic 9: Maintaining and Storing Your Paddlecraft
      • Inspecting Your Paddlecraft
      • Completing Other Maintenance
      • Storing Your Paddlecraft
    • Topic 10: Responsibilities When Paddling With Others
      • Common Rules and Communication
      • Whistle Signals
      • Hand and Paddle Signals
  • Unit 3: Safe Operation and Navigation
    • Topic 1: Boarding and Exiting Your Paddlecraft
      • Boarding and Exiting
      • Boarding a Canoe From a Shoreline
      • Boarding a Canoe From a Dock
      • Exiting a Canoe
      • Boarding a Kayak From a Shoreline
      • Boarding a Kayak From a Dock
      • Exiting a Kayak
      • Securing Your Canoe or Kayak
      • Mounting an SUP in the Water: Part 1
      • Mounting an SUP in the Water: Part 2
      • Mounting an SUP From a Dock
      • Dismounting a Paddleboard
      • Falling Off a Paddleboard
      • Learning Strokes and Techniques
      • Video: Boarding and Exiting
    • Topic 2: Sharing the Waterway With Others
      • Rules of the Waterways
      • Navigation Rules
      • U.S. Aids to Navigation System (ATONS)
      • Lateral Markers: Colors, Numbers, and Shapes
      • Lateral Markers: Lighted Buoys and Daymarks
      • Intracoastal Waterway
      • Western Rivers System
      • Non-Lateral Markers
      • Other Non-Lateral Markers
    • Topic 3: Local Waterway Hazards
      • Waterway Hazards
      • Low-Head Dams
      • Other Hazards on Rivers and Lakes
      • Changing Water Levels
      • Understanding River Characteristics
      • Stopping in a Current
      • Hazards on Coastal Waters
      • Shipping Lanes
      • Video: Paddling Safely on Waterways
    • Topic 4: Fishing and Hunting
      • If You Use Your Boat to Fish or Hunt
      • If You Encounter Fishing or Hunting Boats
  • Unit 4: Legal Requirements of Boating
    • Topic 1: Registration and HIN
      • Certificate of Number and Decals
      • Hull Identification Number
    • Topic 2: Operating a Paddlecraft
      • Who May Operate a Paddlecraft
      • Unlawful Operation of a Paddlecraft
      • Homeland Security Restrictions
    • Topic 3: Alcohol and Drugs
      • Boating Under the Influence (BUI)
      • Blood Alcohol Concentration
      • Penalties for Boating Under the Influence
    • Topic 4: Personal Flotation Devices (Life Jackets)
      • Overview of PFD Law
      • Specific PFD Requirements
      • Type I PFDs: Wearable Offshore Life Jackets
      • Type II PFDs: Wearable Near-Shore Vests
      • Type III PFDs: Wearable Flotation Aids
      • Type IV PFDs: Throwable Devices/Not Wearable
      • Type V PFDs: Special-Use Devices
    • Topic 5: Navigation Lights
      • Overview of Navigation Lights
      • Navigation Lights for Manually Propelled Paddlecraft
      • Navigation Lights for Motorized Paddlecraft
      • Navigation Lights for Paddleboards
    • Topic 6: Sound and Signaling Devices
      • Requirement to Have Sound-Producing Devices
      • Common Sound Signals
      • Requirement to Carry Visual Distress Signals
      • Pyrotechnic Visual Distress Signals
      • Non-Pyrotechnic Visual Distress Signals
      • Arm or Paddle Signal
    • Topic 7: Additional Regulations
      • Equipment Requirements for Paddleboards
      • Local Regulations
    • Topic 8: Protection of the Environment
      • Discharge of Trash
      • Aquatic Nuisance Species
      • Stop the Spread of Nuisance Species
      • Submerged Aquatic Vegetation
    • Topic 9: Accidents and Casualties
      • What You Must Do If Involved in an Accident
      • Reporting an Accident
    • Topic 10: Enforcement
      • Who Enforces Boating Laws?
      • Video: Meeting Legal Requirements
  • Unit 5: Paddling Emergencies
    • Topic 1: Risk Management
      • Prepare for and Prevent Accidents
      • Minimize Risk by Wearing PFDs (Life Jackets)
      • Reducing the Risk of Capsizing, Swamping, or Falling Overboard
      • What To Do If You Capsize, Swamp, or Fall Overboard
      • Rescuing an Overboard Victim
      • Dangers of Broaching in Major Whitewater
      • Dangers of Broaching in Heavy Waves on Open Water
    • Topic 2: Learning Emergency Techniques
      • Emergency Rescue Techniques
      • Boat-Over-Boat Rescue
      • Towing a Swimmer With a Kayak
      • Bulldozing a Boat
      • Video: Preparing for Emergencies
    • Topic 3: Cold Water Immersion and Hypothermia
      • Cold Water Immersion Kills
      • The Four Stages of Cold Water Immersion—Stages 1 and 2
      • The Four Stages of Cold Water Immersion—Stages 3 and 4
      • Symptoms of Hypothermia
      • Surviving Cold Water Immersion
      • The HELP and Huddle Positions
    • Topic 4: Understanding Heat-Related Illnesses
      • Heat-Related Illnesses
      • Heat Exhaustion
      • Heat Stroke
      • Heat Cramps
      • Dehydration
    • Topic 5: Weather Emergencies
      • Changes in the Weather
      • Avoiding Severe Weather
      • What To Do If Severe Weather Strikes
      • Should You Ride Out a Storm?
      • Video: Dealing With Emergencies
View Course Outline

Lateral markers are buoys and other markers that indicate the edges of safe water areas.

Green colors, green lights, and odd numbers mark the edge of a channel on your port (left) side as you enter from open sea or head upstream. Numbers usually will go up as you head upstream. A type of green marker is the cylinder-shaped can buoy.

Red colors, red lights, and even numbers mark the edge of a channel on your starboard (right) side as you enter from open sea or head upstream. Numbers usually will go up as you head upstream. A type of red marker is the cone-shaped nun buoy.

Red and green colors or lights are placed where a channel splits in two. If green is on top, keep the buoy on your left to continue along the preferred channel. If red is on top, keep the buoy on your right. These markers are sometimes called “junction buoys.”

Buoy—can
Buoy—nun
Lighted buoy—red and green
Lighted buoy—green and red
  • Unit 3 of 5
  • Topic 2 of 4
  • Page 4 of 9
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Tag » What Do Lateral Markers Indicate