Vessels at sea and in harbour are requested to signal remembrance on 28 June 2014.
Vessels asked to mark First World War Centenary
If practical, vessels at sea are requested to fly ensigns at half-mast to indicate mourning in remembrance of the centenary of the First World War.
Vessels in harbour are encouraged to use a remembrance sound signal as may be decided and permitted by the local port authorities at 1700 UTC. This being the hour of the first shot fired in the conflict.