(1) Where permission has been granted by the Marine Manager for the pumping of flammable liquids into or out of an oil vessel to be carried out between sunset and sunrise and an interruption or stoppage of loading or discharging takes place, the Master of an oil vessel must ensure that the pumping must not be recommenced until after sunrise, unless approved by the Marine Manager.
(2) A Master of an oil vessel who contravenes this by-law commits an offence.