541 



(b) in the absence of a building contract, the keel of which is 

 laid or which is at a similar stage of construction after 30 June 

 1976; or 



(c) the delivery of which is after 31 December 1979; or 



(d) which has undergone a major conversion : 



(i) for which the contract is placed after 31 December 

 1975; or 



(ii) in the absence of a contract, the construction work of 

 which is begun after 30 June 1976 ; or 



(iii) which is completed after 31 December 1979. 



(7) "Existing ship" means a ship which is not a new ship, 



(8) "Major conversion" means a conversion of an existing ship: 



(a) which substantially alters the dimensions or carrying ca- 

 pacity of the ship ; or 



(b) which changes the type of the ship ; or 



(c) the intent of which in the opinion of the Administration is 

 substantially to prolong its life ; or 



(d) which otherwise so alters the ship that if it were a new 

 ship, it would become subject to relevant provisions of the present 

 Convention not applicable to it as an existing ship. 



(9) "Nearest land". The term "from the nearest land" means from 

 the baseline from which the territorial sea of the territory in question 

 is established in accordance with international law, except that, for 

 the purposes of the present Convention "from the nearest land" off the 

 north eastern coast of Australia shall mean from a line drawn from a 

 point on the coast of Australia in 



latitude 11° South, longitude 142°08' East to a point in latitude 



10°35' South, 

 longitude 141°55' East — thence to a point latitude 10°00' South, 

 longitude 142°00' East, thence to a point latitude 9°10' South, 

 longitude 143°52' East, thence to a point latitude 9°00' South, 

 longitude 144°30' East, thence to a point latitude 13°00' South, 

 longitude 144°00' East, thence to a point latitude 15°00' South, 

 longitude 146°00' East, thence to a point latitude 18°00' South, 

 longitude 147°00' East, thence to a point latitude 21°00' South, _ 

 longitude 153°00' East, thence to a point on the cost of Australia 



in latitude 24°42' South, longitude 153°15' East. 



(10) "Special area" means a sea area where for recognized technical 

 reasons in relation to its oceanographical and ecological condition and 

 to the particular character of its traffic the adoption of special man- 

 datory methods for the prevention of sea pollution by oil is required. 

 Special areas shall include those listed in Regulation 10 of this Annex. 



(11) "Instantaneous rate of discharge of oil content" means the rate 

 of discharge of oil in litres per hour at any instant divided by the speed 

 of the ship in knots at the same instant. 



(12) "Tank" means an enclosed space which is formed by the perma- 

 nent structure of a ship and which is designed for the carriage of 

 liquid in bulk. 



(13) "Wing tank" means any tank adjacent to the side shell plating. 



(14) "Centre tank" means any tank inboard of a longitudinal bulk- 

 head. 



(15) "Slop tank" means a tank specifically designated for the col- 

 lection of tank drainings, tank washings and other oily mixtures. 



