270 



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

 longitude l'4i°00' East, thence to a point latitude 15°00' South, longitude 145°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 

 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 its peculiar 

 transportation traffic the adoption of special mandatory methods for the preven- 

 tion of sea pollution by oil is required. Special areas are those listed in Regulation 

 12 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 that part of the permanent structure of a ship 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, sludge 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 efiluent therefrom, if it were discharged 

 from a stationary tanker into clean calm water on a clear day would produce no 

 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 tank from which ballast is discharged is fitted 

 with an oil content monitoring arrangement approved by the Administration, 

 evidence based on such an arrangement 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. 



(17) "Segregated ballast" means the ballast water which is introduced into a 

 tank or compartment permanently allocated to the carriage of ballast or cargoes 

 other than oil and which is completely separated from the cargo oil and oil fuel 

 system. 



(18) "Length" (L) is 96 per cent of the total length on a waterline at 85 per 

 cent of the least moulded depth measured from the top of the keel, or the length 

 from the fore side of the stem to the axis of the rudder stock on that waterline, 

 if that be greater.^ In ships designed with a rake of keel the waterline on which 

 this length is measured shall be parallel to the designed waterline. The length (L) 

 shall be measured in metres. 



(19) "Forward and after perpendiculars" shall be taken at the forward and 

 after ends of the length (L). The forward perpendicular shall coincide with the 

 foreside of the stem on the waterline on which the length is measured. 



(20) "Amidships" is at the middle of the length (L) . 



(21) "Breadth" (B) is the maximum breadth of the ship, measured amidships 

 to the moulded line of the frame in a ship with a metal shell and to the outer 

 surface of the hull in a ship with a shell of any other material. The breadth (B) 

 shall be measured in metises. 



(22) "Deadweight" (DW) means the difference between the displacement of a 

 ship at summer load waterline and the light weight of the ship in metric tons. 



(23) "Lightweight" means the displacement of a ship in metric tons without 

 cargo, oil fuel, lubricating oil, ballast and freshwater in tanks and passengers 

 and their effects. 



(24) "Permeability" of a space means the ratio of the volume within that space 

 which can be occupied by water to the total volume of that space. 



(25) "Volumes" and "areas" shall be calculated in all cases to moulded lines. 



REGULATION 2. APPLICATION 



(1) Unless expressly provided otherwise, the provisions of this Annex shall 

 apply to all ships other than stationary ships " for which only Regulation 26 of 

 this Annex shall apply. 



s Olio (Iplcjrntion snjrsrostofl n modifiration of the definition of L so as not to penalize 

 ships witli twill screws and twin riHl<levs. 



"The term "stntionnry sliips" inij.'ht need to be improved. Further consideration should 

 also bo {riven to the implications of extending the requirements for fixed platforms to 

 other stationary craft. 



