No explosives will be allowed to be placed aboard a vessel until the rest of the cargo has been placed aboard and the vessel trimmed. Immediately after the completion of the loading of explosives, the vessel shall weigh anchor and leave port, weather conditions permitting. City Code, 1927, art. 15, §86 1950, art. 11, §88 1966, art. 10, §87 1976/83, art. 10, §87 Ord. 13-336