Boating safety course
Aids to Navigation (ATON)
Master the complete U.S. Aids to Navigation System including lateral markers (red/green buoys), non-lateral markers, ICW markings, regulatory markers, light characteristics, ranges, and navigation techniques for safe channel navigation.
7 lessonsAbout 210 minutes
- 01Introduction to Navigation AidsUnderstand the purpose and structure of the U.S. ATON system, IALA Region B vs Region A differences, fixed vs floating aids, chart symbols, and your responsibilities for reporting discrepancies.
- 02The Lateral System: Red and Green MarkersMaster the foundation rule "Red, Right, Returning," understand port and starboard markers, learn can and nun buoy shapes, and navigate junction markers at channel splits.
- 03Non-Lateral MarkersLearn safe water markers, isolated danger markers, special markers, and information/regulatory markers that indicate specific conditions or areas rather than channel edges.
- 04The Intracoastal Waterway (ICW) Marking SystemUnderstand the ICW as a 3,000-mile "highway on water," master the yellow triangle/square system, navigate dual-purpose markers, and use ICW mile markers.
- 05Regulatory and Information Markers (State System)Master the Uniform State Waterway Marking System including danger markers, exclusion zones, controlled areas, information markers, and mooring buoys.
- 06Light Characteristics and IdentificationMaster the system of light colors, rhythms, and periods for night navigation including fixed, flashing, quick, isophase, occulting, Morse code, and group flashing patterns.
- 07Ranges, Daybeacons, and Advanced Navigation AidsMaster range lights for precision navigation, understand daybeacon systems, use leading lines, and apply advanced techniques for safe channel transit.
20 questions, 80% to pass. The quiz and your progress need a free account; the lessons above do not.