285 



(d) The free surface effect shall be calculated at an angle of heel of 5 degrees 

 for each individual compartment. The Administration may require or allow the 

 free surface corrections to be calculated at an angle of heel greater than 5 degrees 

 for partially-filled tanks. 



(e) In calculating the effect of free surfaces of consumable liquids it shall be 

 assumed that, for each type of liquid at least one transverse pair or a single 

 centre line tank has a free surface and the tank or combination of tanks to be 

 taken into account shall be those where the effect of free surfaces is the greatest. 



(5) The Master of every oil tanker and the person in charge of a non-self- 

 propelled oil tanker to which this Annex applies shall be supplied in an approved 

 form with : 



(a) information relative to loading and distribution of cargo necessary to 

 ensure compliance with the provisions of this Regulation ; and 



(b) data on the ability of the ship to comply with damage stability criteria 

 as determined l)y this Regulation, including the effect of relaxations that may 

 have been allowed under sub-paragraph (l)(c) of this Regulation. 



[Pumping and Piping Arrangements for Cargo Transfer ^'] 



BEGULATIOX 26. — SHIPS WHICH ARE STATIONARY 



(1) Any discharge [into the sea] of oil or oily mixtures from ships which are 

 stationary shall be prohibited except when the following conditions are satisfied : 



(a) the effluent is equivalent to clean ballast as defined in Regulation 1(16) 

 of this Annex ; and 



(b) the stationary ship is not within any of the areas defined in Regulation 

 1(10) of this Annex. 



(2) Stationary ships, when located in special areas defined in Regulation 1 

 (10) of this Annex shall be subject to appropriate requirements of Regulation 

 12 of this Annex.^ 



(3) [ ] ^ If the tank from which water or oily mixture is discharged is 



fitted with an oil content monitoring arrangement approved by the Administra- 

 tion, evidence based on such an arrangement to the effect that the oil c-ontent 

 of the effluent did not excee<l [1~>] parts per million shall be determinative that 

 the provisions of the Convention have not been violated. 



(4) The discharge shall not contain chemicals or Other substances which are 

 hazardous to the marine environment. The discharge shall not contain chemicals 

 or other substances introduced for the puri»ose of circumventing the conditions 

 of discharge sitecified in this Regulation. 



(.■)) Paragraph (1) of this Regulation shall not apply to: 



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

 the puri)o«e of .securing the safety of llie structure or .saving life at sea ; or 



(b) the escape of oil or oily mixture resulting from damage to a stationary 

 ship or its etiuipment. if all reasonable precautions have been taken after the 

 occurrence of the damage or discovery of the leakage for the purjiose of prevent- 

 ing or minimizing the escajie ; or 



(c) the discharge into the sea of substances containing oil, approved by the 

 Administration, when being ustnl as dispersants for the i)urpose of combating 

 specific pollution incidents in order to mininiize the damage from pollution. 



(6) Stationary ships shall be equipped, as far as practicable, with installa- 

 tions in order to retain on board or discharge oil or oily mixture in accordance 

 with the requirements of paragraph (1) of this Regulation to the satisfaction 

 of the Administration. 



(7) A tank or tanks of adequate capacity shall be provided to receive any 

 oily residues resulting from the purification of oil if .such purification is carried 

 out on the stationary ship. 



^- (\) Several delegations suggested that consideration should be priven to a need for a 

 reenlntion that apiiroi)riate arrangements should he made to provide ashore equipment 

 cEDable of transferring cargo from compartments in the case of accidents to oil tankers. 



(ii) Some delegations suggested the inclusion of the following regulation : 



"Each new oil tanker [of not less than fsize limit] 1 shall he equipned with self-con- 

 tained fixed or portable pumping and piping arrangements capable of ptimning cargo from 

 the damaged compartment, beginning from the upper layers of the cargo, to another 

 conir)artm('nt or outside the ship. 



^■i Consideration should be given to the extension of Regulation 12 to cover requirements 

 for fixed platforms. 



" See footnote 21 under Regulation 9(3) of this Annex. 



