Section 18

( 1) Whenever a pilot is available for duty and is on board a vessel belonging to the Marine Department such vessel shall exhibit by day a red and white flag divided horizontally with the upper half of the flag coloured white and the lower half coloured red and not less than 1.8 metres by 1.2 metres in size.

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{2) During the hours between sunset and sunrise such vessel shall exhibit at or near the masthead, two nll-round lights in a vertical line, not less than two metres apart, the upper being white and the lower red.