8.

The discharge into the sea of substances in Category B as defined in Regulation (3)(1)(b) of this Annex or of those provisionally assessed as such, or ballast water, tank washings, or other residues or mixtures containing such substances shall be prohibited except when all the following conditions are satisfied: the tank has been prewashed in accordance with the procedure approved by the (flag State) Administration and based on standards developed by the (IMO) and the resulting tank washings have been discharged to a reception facility; the ship is proceeding en route at a speed of at least 7 knots in the case of self-propelled ships or at least 4 knots in the case of ships which are not self-propelled; the procedures and arrangements for discharge and washings are approved by the (flag State) Administration. Such procedures and arrangements shall be based upon standards developed by the (IMO) and shall ensure that the concentration and rate of discharge of the effluent is such that the concentration of the substance in the wake astern of the ship does not exceed 1 part per million; the discharge is made below the waterline, taking into account the location of the seawater intakes; and 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 m.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-01 · Text as adopted (Official Journal); later amendments are not incorporated in this text.