429 



For the purposes of this paragraph the oil in an oily mixture of less 

 tlian 100 parts of oil in 1,000,000 parts of the mixture shall not be 

 deemed to foul the surface of the sea. 



(2) Subject to the provisions of Articles IV and V, any discharge 

 into the sea from a ship, bein^ a ship to which the Convention applies 

 and not being a tanker, of oilv ballast water or tank washings shall 

 be made as far as practicable from land. As from a date three years 

 after the date on which the Convention comes into force, paragraph 

 (1) of this Article shall apply to ships other than tankers as it applies 

 to tankers, except that — 



(a) the prohibited zones in relation to ships other than tankers 

 shall be those referred to as such in Annex A to the Convention; 

 and 



(b) the discharge of oil or of an oily mixture from such a ship 

 sliall not be prohibited when the ship is proceeding to a port not 

 provided with such reception facilities as are referred to in Article 

 VIII. 



(.3) Any contravention of paragraphs (1) and (2) of this Article 

 shall be an offense punishable under the laAvs of the territory in which 

 the ship is registered. 



Article IV 



( 1 ) Article III shall not apply to — 



(a) the discharge of oil or of an oily mixture from a ship for 

 the purpose of securing the safety of the ship, preventing damage 

 to the ship or cargo, or saving life at sea ; or 



(b) the escape of oil, or of an oily mixture, resulting from 

 damage to the ship or unavoidable leakage, if all reasonable pre- 

 cautions have been taken after the occurrence of the damage or 

 discovery of the leakage for the purpose of preventing or minimis- 

 ing the escape ; 



(c) the discharge of sediment — 



(i) which cannot be pumped from the cargo tanks of 

 tankers by reason of its solidity ; or 



(ii) which is residue arising from the purification or clari- 

 fication of oil fuel or lubricating oil, 

 provided that such discharge is made as far from land as is 

 practicable. 



(2) In the event of such discharge or escape as is referred to in this 

 Article a statement shall be made in the oil record book required by 

 Article IX of the circumstances of and reason for the discharge. 



Article V 



Article III shall not apply to the discharge from the bilges of a 

 ship — 



(a) of any oily mixture during the period of twelve months 

 following the date on which the Convention comes into force in 

 respect of the territory in which the ship is registered ; 



(b) after the expiration of such period, of an oily mixture 

 containing no oil other than lubricating oil. 



