Rule 34 – Manoeuvring and Warning Signals
This is the only guide to the Colregs sound signals you are ever going to need. On this page we have explanation videos for you as well as easy to understand pictures.
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The IRPCS or Colregs sound signals are defined in two rules.
Rule 34 – Manoeuvring and Warning Signals apply to power driven vessels in sight of one another. The overtaking rules apply to vessels in a narrow channel or fairway.
Rule 35 – Sound Signals in restricted Visibility apply in or near areas of restricted visibility, whether by day or night. This does not include the darkness of night though!
Throughout the two rules, a short blast is for 1 second and a prolonged blast is for between 4 and 6 seconds.
Watch the Colregs Sound Signals video below for a full understanding of Rule 34 – Manoeuvring & Warning Signals
The video includes a thorough explanation of the above Colregs sound signals as well as the signals for overtaking. It also explains the signals when nearing blind bends in channels.
Rule 35 – Sound Signals in Restricted Visibility
Watch the Colregs Sound Signals video below for a full understanding of Rule 35 – Sound Signals in Restricted Visibility
The video contains a thorough explanation of all the signals to be made by vessels in restricted visibility. Like the first video above, it is developed exactly in line with the rule.
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