Versions of s. 381(1)
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The master of any Canadian ship on meeting with dangerous ice, a dangerous derelict or other direct dangers to navigation, a tropical storm, winds of a force of ten or more on the Beaufort scale for which no storm warning has been received or subfreezing air temperatures associated with gale force winds and causing severe ice accretion on the superstructure of his ship shall, in the manner prescribed by the regulations, send information thereof to all ships in the vicinity and to such authorities on shore as may be prescribed by the regulations.