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the generality of the foregoing, includes the substances listed in Appendix I to 
this Annex. 
(2) “Oily mixture’ means a mixture with any oil content. 
(3) “Oil fuel” means any oil used as fuel in connexion with the propulsion 
and auxiliary machinery of the ship in which such oil is carried. 
(4) “Oil tanker’ means a ship constructed or adapted primarily to carry oil 
in bulk in its cargo spaces and includes combination carriers and any ‘chemical 
tanker” as defined in Annex II of the present Convention when it is carrying a 
cargo or part cargo of oil in bulk. 
(5) “Combination carrier’ means a ship designed to carry either oil or solid 
cargoes in bulk. 
(6) “New ship” means a ship: (a) for which the building contract is placed 
after 31 December 1975; or (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 Decemeber 1975; or 
(ii) in the absence of a contract, the construction work of which is be- 
gun after 30 June 1976; or 
(iii) which is completed after 81 December 1979. 
(7) “Existing ship’? means a ship is not a new ship. 
(8S) “Major conversion” means a conversion of an existing ship: (a) which 
substantially alters the dimensions or carrying capacity 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 (da) which other- 
wise 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. 
(0) “Nearest land”. The term “from the nearest land” means from the base- 
line 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’ Kast—thence to a point latitude 10°00’ South, longitude 142°00’ East, 
thence to a point latitude 9°10’ South, longitude 148°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°0O0’ East, 
thence to a point latitude 21°00’ South, longitude 153°00’ East, thence to a point 
on the coast 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 mandatory methods for the pre- 
vention 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 dis- 
charge 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 permanent struc- 
ture 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 bulkhead. 
(15) “Slop tank” means a tank specifically designated for the collection of 
tank drainings, tank washings and other oily mixtures. 
(16) “Clean ballast” means the ballast in a tank which since oil was last 
carried therein, has been so cleaned that effluent therefrom if it were discharged 
from a ship which is stationary into clean calm water on a clear day would not 
produce visible traces of oil on the surface of the water or on adjoining shore 
lines or cause a sludge or emulsion to be deposited beneath the surface of the 
water or upon adjoining shore lines. If the ballast is discharged through an oil 
discharge monitoring and control system approved by the Administration, evi- 
dence based on such a system to the effect that the oil content of the effluent did 
not exceed 15 parts per million shall be determinative that the ballast was clean, 
notwithstanding the presence of visible traces. 
