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[接上页] (4) The level of concentration of the Category A substance in the washings at the point of discharge shall be ascertained by analysis of samples taken at that point and verified by a Marpol surveyor or, where there is no Marpol surveyor at that port, by the master. (5) Where a Marpol surveyor at the port of unloading, or where there is no Marpol surveyor at that port, the master, is satisfied that it is not practicable to measure such level of concentration without undue delay to the ship at that port, the requirements of paragraph (2) shall be sufficiently complied with if- (a) the tank is pre-washed in accordance with the procedures specified for that tank and substance in the Procedures and Arrangements Manual; and (b) the Marpol surveyor at the port of unloading or, where there is no Marpol surveyor at that port, the master, records in the Cargo Record Book that- (i) the tank and its pumps and piping systems have been emptied; and (ii) the pre-wash has been carried out in accordance with the pre-wash procedure approved for that tank and that substance in the ship's Procedures and Arrangements Manual; and (iii) the tank washings resulting from such pre-wash have been discharged to a reception facility and the tank is empty. (Enacted 1987) Cap 413B reg 5 Category A residual mixtures - discharge (1) The discharge into the sea of a Category A residual mixture is prohibited except where all the following conditions are satisfied- (a) the effluent consists solely of water added to the tank after it has been emptied in accordance with regulation 4(3) or 4(5); and (b) the ship is proceeding at a speed of at least 7 knots in the case of a self-propelled ship or at least 4 knots in the case of a ship which is not self-propelled; and (c) the discharge is made below the water line; and (d) the discharge is made at a distance of not less than 12 nautical miles from the nearest land and in a depth of water of not less than 25 metres.(2) Notwithstanding paragraph (1), any such discharge is prohibited in the Antarctic area. (Enacted 1987; L.N. 186 of 1995) Cap 413B reg 6 Categories B and C substances - discharge The discharge into the sea of a Category B or Category C substance is prohibited. (Enacted 1987) Cap 413B reg 7 Categories B and C - unloading in all areas Whenever a Category B substance or a Category C substance is unloaded, unloading shall if possible be carried out in accordance with the relevant provisions of the ship's Procedures and Arrangements Manual. (Enacted 1987) Cap 413B reg 8 Categories B and C - tank washing outside Special Areas Where a Category B substance or a Category C substance is unloaded at a port which is not within a Special Area, then- (a) if it was impossible for unloading to be carried out as required by regulation 7 or to the satisfaction of a Marpol surveyor; or (b) in any case where the substance in question is a high residue substance,every tank from which such substance has been unloaded shall be pre-washed and the resulting tank washings shall be discharged into a reception facility at the port of unloading. (Enacted 1987) Cap 413B reg 9 Category B - tank washing in Special Areas Where a Category B substance is unloaded at a port in a Special Area, every tank from which such substance has been unloaded shall be pre-washed and the resulting tank washings shall be discharged into a reception facility at the port of unloading unless- (a) unloading was carried out as required by regulation 7 or to the satisfaction of a Marpol surveyor; and (b) the substance is not a high residue substance; and (c) the residues are to be retained on board for discharge outside a Special Area. (Enacted 1987) Cap 413B reg 10 Category C - tank washing in Special Areas Where a Category C substance is unloaded at a port in a Special Area every tank from which such substance has been unloaded shall be pre-washed and the resulting tank washings shall be discharged to a reception facility at the port of unloading unless- (a) unloading was carried out as required by regulation 7 or to the satisfaction of a Marpol surveyor; and (b) either- (i) the substance is a Category C substance identified in the ship's Procedures and Arrangements Manual as likely to result in a residue quantity from any one tank which does not exceed 1 cubic metre or 1/3000 of the capacity of that tank, whichever is the greater; or (ii) the substance is not a high residue substance and the residues are to be retained on board for discharge outside a Special Area. (Enacted 1987) Cap 413B reg 11 Categories B and C residual mixtures - discharge Expanded Cross Reference: 7,8,9,10 (1) The discharge into the sea of a Category B residual mixture or a Category C residual mixture is prohibited except where all the following conditions are complied with- (a) all relevant requirements of regulations 7 to 10 have been complied with; (b) the concentration of the substance in, and the rate of discharge of, the effluent is in accordance with the procedures and arrangements specified in respect of substances of the category in question in the ship's Procedures and Arrangements Manual; |