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.
2 Each Contracting Government will take all steps
necessary to ensure that when intelligence of any of the dangers specified
in paragraph 1 is received, it will be promptly brought to the knowledge
of those concerned and communicated to other interested Governments.
3 The transmission of messages respecting the
dangers specified is free of cost to the ships concerned.
4 All radio messages issued under paragraph 1
shall be preceded by the safety signal, using the procedure as prescribed
by the Radio Regulations as defined in regulation