COLREG Lights, Shapes and Sound Signals

The learning objective of this section is to get acquainted with the different lights, shapes and sound signals that may be used by different types of vessels

Lights and shapes

Visibility of lights

Lights displayed by power-driven vessels underway

Lights for vessels towing and pushing

Lights for sailing and rowing vessels

Lights for fishing vessels

Lights for vessels not under command or restricted in their ability to manoeuvre

Lights for vessels constrained by their draught

Lights for pilot vessels

Lights for vessels anchored and aground

Lights for seaplanes

Definitions of whistle

Equipment

Manoeuvring and warning signals, using whistle or lights

Sound signals to be used in restricted visibility

Signals to be used to attract attention

Distress signals

Annexes

ANNEX I – Positioning and technical details of lights and shapes

ANNEX II – Additional signals for fishing vessels fishing in close proximity

ANNEX III – Technical details of sound signal appliances

ANNEX IV – Distress signals