Vessel Pollution and Dangerous Chemicals Regulations
Marginal note:Procedures — Category X
63 (1) A tank from which a Category X noxious liquid substance has been unloaded must be washed before the vessel leaves the port of unloading unless
(a) the tank is reloaded with the same substance or a substance that is compatible with it and the tank is neither ballasted before loading nor washed after the vessel leaves the port of unloading;
(b) the vessel’s master notifies in writing the Department of Transport Marine Safety Office nearest to the vessel that the tank will be washed at another port that has adequate reception facilities; or
(c) the cargo residues are removed from the tank by a ventilation procedure.
Marginal note:Transfer of effluent
(2) Subject to subsection (3), the tank washing operation must be carried out by washing the tank and transferring the effluent to a reception facility that can receive the effluent in an environmentally safe manner until the concentration of the substance in the effluent has fallen to 0.1% by weight, and then by continuing to transfer the remaining effluent to the facility until the tank is empty.
Marginal note:If not feasible
(3) If it is not feasible to measure the concentration of the substance to ensure that it falls within the limit specified in subsection (2) without causing undue delay to the vessel, the tank washing operation must be carried out by washing the tank and transferring the effluent to a reception facility in accordance with subparagraph 61(b)(i).
Marginal note:Marine safety inspectors
(4) The tank washing operation must be carried out in the presence of a marine safety inspector who endorses the appropriate entries in the vessel’s Cargo Record Book required by subsection 79(1).
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