22 (1) No oil burning or oil carrying vessel shall enter a Dry Dock until such precautions to prevent the leaking of oil from the vessel as may be required by the dock-master have been taken.
(2) Where a dock-master considers it necessary, he may require the cargo or oil tanks of a vessel referred to in subsection (1) to be cleared before the vessel enters a Dry Dock.
(3) Cargo and oil tanks required by the dock-master pursuant to subsection (1) to be cleared shall be thoroughly steamed out and ventilated in such a manner as to expel therefrom all gases and other dangerous or explosive fumes, and the owner or agent of a vessel shall, before repairs are undertaken therein, furnish a certificate given by a competent analyst that all tanks and holds of the vessel are free of inflammable vapour.
21 (1) Subject to subsection (2), no vessel shall enter a Dry Dock with any explosive material on board, or carrying or having carried on its current voyage oil with a flashing point below twenty-three degrees Celsius, unless the owner of the vessel furnishes a certificate given by a competent analyst that all tanks and holds of the vessel are free from inflammable vapour.
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