2. The First Schedule to the Prevention of Pollution of the Sea (Oil) Regulations (Rg 1) is amended —| (a) | by deleting the words “the Gulf of Aden and the Antarctic area,” in the third line of Regulation 10(1) and substituting the words “the Gulf of Aden area, the Antarctic area and the North West European waters,”; | | (b) | by inserting, immediately after sub-paragraph (g) of Regulation 10(1), the following sub-paragraph:| “ | (h) The North West European waters include the North Sea and its approaches, the Irish Sea and its approaches, the Celtic Sea, the English Channel and its approaches and part of the North East Atlantic immediately to the west of Ireland. The area is bounded by lines joining the following points:| (i) | 48° 27′ N on the French coast; | | (ii) | 48° 27′ N; 6° 25′ W; | | (iii) | 49° 52′ N; 7° 44′ W; | | (iv) | 50° 30′ N; 12° W; | | (v) | 56° 30′ N; 12° W; | | (vi) | 62° N; 3° W; | | (vii) | 62° N on the Norwegian coast; | | (viii) | 57° 44.8′ N on the Danish and Swedish coasts.”; |
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| | (c) | by deleting the words “and Gulf of Aden area” in paragraph (7)(b) of Regulation 10 and substituting the words “, Gulf of Aden area and North West European waters”; | | (d) | by deleting the word “Organisation” at the end of Regulation 13F(5) and substituting the word “Organisation*”; | | (e) | by inserting, immediately after paragraph (7) of Regulation 13F, the following footnote:“ | “_________________
*See Part III of the Second Schedule.”; |
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| | (f) | by deleting the word “Organisation” at the end of Regulation 13G(7) and substituting the word “Organisation*”; | | (g) | by inserting, immediately after Regulation 13G(7), the following footnote:“ | “_________________
*See Part II of the Second Schedule.”; |
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| | (h) | by deleting the word “Organisation” at the end of sub-paragraph (e)(ii) of Regulation 18(6) and substituting the word “Organisation*”; | | (i) | by inserting, immediately after sub-paragraph (e)(ii) of Regulation 18(6), the following footnote:“ | “_________________
*See Part I of the Second Schedule.”; and |
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| | (j) | by inserting, immediately after Regulation 25, the following Regulation:“(1) This Regulation shall apply to oil tankers of 5,000 tons deadweight and above:| (a) | for which the building contract is placed on or after 1st February 1999; | | (b) | in the absence of a building contract, the keels of which are laid or which are at a similar stage of construction on or after 1st August 1999; | | (c) | the delivery of which is on or after 1st February 2002; or | | (d) | which have undergone a major conversion:| (i) | for which the contract is placed after 1st February 1999; or | | (ii) | in the absence of a contract, the construction work of which is begun after 1st August 1999; or | | (iii) | which is completed after 1st February 2002. |
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(2) Every oil tanker shall comply with the intact stability criteria specified in sub-paragraphs (a) and (b) of this paragraph, as appropriate, for any operating draught under the worst possible conditions of cargo and ballast loading, consistent with good operational practice, including intermediate stages of liquid transfer operations. Under all conditions the ballast tanks shall be assumed slack.| (a) | In port, the initial metacentric height GMo, corrected for free surface measured at 0° heel, shall be not less than 0.15m; | | (b) | At sea, the following criteria shall be applicable:| (i) | the area under the righting lever curve (GZ curve) shall be not less than 0.055 m.rad up to θ=30° angle of heel and not less than 0.09 m.rad up to θ=40° or other angle of flooding θf* if this angle is less than 40°. Additionally, the area under the righting lever curve (GZ curve) between the angles of heel of 30° and 40° or between 30° and θf, if this angle is less than 40°, shall be not less than 0.03 m.rad; | | (ii) | the righting lever GZ shall be at least
0.20 m at an angle of heel equal to or greater than 30°; | | (iii) | the maximum righting arm shall occur at an angle of heel preferably exceeding 30° but not less than 25°; and | | (iv) | the initial metacentric height GMo, corrected for free surface measured at 0° heel, shall be not less than 0.15 m. |
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| (3) The requirements of paragraph (2) shall be met through design measures. For combination carriers simple supplementary operational procedures may be allowed. |
| (4) Simple supplementary operational procedures for liquid transfer operations referred to in paragraph (3) shall mean written procedures made available to the master which: |
| “(i) | are approved by the Administration; | | (ii) | indicate those cargo and ballast tanks which may, under any specific condition of liquid transfer and possible range of cargo densities, be slack and still allow the stability criteria to be met. The slack tanks may vary during the liquid transfer operations and be of any combination provided they satisfy the criteria; | | (iii) | will be readily understandable to the
officer-in-charge of liquid transfer operations; | | (iv) | provide for planned sequences of cargo/ballast transfer operations; | | (v) | allow comparisons of attained and required stability using stability performance criteria in graphical or tabular form; | | (vi) | require no extensive mathematical calculations by the officer-in-charge; | | (vii) | provide for corrective actions to be taken by the officer-in-charge in case of departure from recommended values and in case of emergency situations; and | | (viii) | are prominently displayed in the approved trim and stability booklet and at the cargo/ballast transfer control station and in any computer software by which stability calculations are performed.”. |
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