27G 



(b) Each Contracting Government, not later than [1 January 1977], shall 

 DrovidP evorv oil loading terminal, repair ports and entrances to sea water 

 courses with "a low deptli contour under its jurisdiction," located m the Mediter- 

 ranean Sea, with facilities adequate for the reception and treatment of all the 

 dirty ballast and tank washings waters from tankers. . ,.^ 



During the iwriod between the entry into force of the present Convention (if 

 earli(>r than [1 January 1077]) and [1 January 1977] oil tanlvers, while navigat- 

 in" in the Mediterranean Sea, shall comply witli the requirements of Regulation 

 IS^of this Annex. After [1 January 1977] oil tankers loading in the Mediterranean 

 ports, where such facilities are not yet available, shall comply with the require- 

 ments of Regulation 11 of this Annex until such facilities become availal)le. 



(c) After 1 January 1977 each Contracting Government shall report to the 

 Organization for transmission to the Contracting Governments concerned all 

 cases where the facilities are alleged to be inadequate.'" 



(8) BaltwSeaU^ ^^^ prepared] 

 (4) Black Sea j "■ 



BEGULATION 13. — SEGREGATED BALLAST OIL TANKERS 



(1) Oil tankers provided with segregated ballast tanks in accordance with 

 paragraph (2) of Regulation 11 of this Annex shall comply with the requirements 



of this Regulation.'' '■'■ , ,, , ^ . . , ., . 



(2) The capacity of the segregated ballast tanks shall be so determined that 

 the "ship may operate safely on ballast voyages under weather and sea conditions 

 it may normally be expected to encounter having regard to its draught, freeboard, 

 stability and maneuverability without recourse to the use of oil tanks for water 



ballast.'' 



(3) The capacity of the segregated ballast tanks shall be such as to achieve m 

 the ballast condition a minimum forward draught of [0.0251^] ** and an after 

 draught to ensure adequate propeller and rudder immersion provided that : 



(a) the provisions of paragraph (2) of this Regulation are met ; and 



=9 Consideration sliould be given to the inclusion of an additional parasrapli on similar 

 lines to Regulation 20(2). This might include an obligation on Contracting 'Jovt-rnments 

 to furnish information to the Organization and Iceep it up to date on the facilities avail- 

 able in their loading terminals and repair ports. This provision might be included in 

 paragraph (2) (c) of this Regulation or elsewhere in the Convention, perhaps in Article 11 

 (see footnote 48 under that Article). .,^v. .,^^ 



30 It was noted that preparatorv work was being earned out by coastal states concernea 

 on proposals for the Baltic Sea which might be submitted to the Conference. 



:<i One delegation expressed the view that segregated ballast capacity for oil tankers 

 trading solely within 1150] miles between oil loading and oil delivering terminals should 

 be left to the'optiton of the Administration. The segregated ballast capacity and operational 

 range to be indicated on the corresponding certificate. 



== One delegation expressed the view that oil tankers applying solely the m-port disposal 

 system as referred to in Regulation 11(1) (c) should be exempt from any requirement for 

 segregated ballast. Such an exemption to be indicated on the corresponding certificate. 



3a (i) Several delegations were in favour of specifying double bottom construction as 

 an anti-pollution measure in the event of stranding by adding the following sentence. 

 "This segregated ballast capacity shall be achieved in part by fitting throughout the cargo 

 length a double bottom height of at least B/15". 



(ii) One delegation proposed the height of double bottom be deduced to B/21 if the 

 tanker is fitted with a double skin throughout the cargo length. 



(iii) One delegation suggested that this sentence, if incorporated, should be included In 

 Chapter III of this Annex as it would relate primarily to the minimization of accidental 

 spills. , , 



^' These values are based upon classification society rules and present tanker practices. 

 Thev do not refiect any experience or features of segregated ballast designs. Consideration 

 should be given to the acceptance of a formula which would require draughts equal to 

 lower percentages of length for large tankers and higher percentages of length for smaller 

 tankers. 



