The master of any oil
vessel carrying inflammable liquid in bulk shall, immediately on the berthing
of the vessel, have a steel wire hawser sufficiently strong to enable the oil
vessel to be hauled away from the berth placed over the fore and aft ends of
the oil vessel and made securely fast on board, and the hawser shall remain so
placed while any inflammable liquid remains on board and until the oil vessel
has been properly cleansed and ventilated.