Hong Kong Regulations

MERCHANT SHIPPING (CONTROL OF POLLUTION BY NOXIOUS LIQUID SUBSTANCES IN BULK) REGULATIONS - REGULATION 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)