SOLAS Chapter V, Regulation 31.1
The master of every ship which meets with …
- dangerous ice,
- a dangerous derelict, or
- any other direct danger to navigation, or
- a tropical storm, or
- encounters sub-freezing air temperatures associated with gale force winds causing severe ice accretion on superstructures, or
- winds of force 10 or above on the Beaufort scale for which no storm warning has been received,
is bound to communicate the information by all means at his disposal to ships in the vicinity, and also to the competent authorities. The form in which the information is sent is not obligatory. It may be transmitted either in plain language (preferably English) or by means of the International Code of Signals.
Further governments have a duty to promulgate this information free of charge, this should be preceded by the safety signal.
[Safety DSC Message and Securite call]
Comment: Remember that unexpected depths, new ports and positional inaccuracies on IHO authorised documents and charts may be reported by use of H102, H102a and H102b respectively. [These ‘H’ form links will place the original form in your download folder, these can then be printed if required]
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