Document ID: chunk:federal_register_of_legislation:C2004A04507:schedule:2:p20
Version: federal_register_of_legislation:C2004A04507
Segment Type: schedule
Provision Reference: sch 2 (pt 20/26)
Character Range: 72451–75098

in the absence of a contract, the construction work of which is begun after 6 January 1994; or

      (iii) which is completed after 6 July 1996.

(2) Every oil tanker of 5,000 tons deadweight and above shall:

    (a)     in lieu of regulation 13E, as applicable, comply with the requirements of paragraph (3) unless it is subject to the provisions of paragraphs (4) and (5); and

  (b)     comply, if applicable, with the requirements of paragraph (6).

(3) The entire cargo tank length shall be protected by ballast tanks or spaces other than cargo and fuel oil tanks as follows:

  (a) Wing tanks or spaces

    Wing tanks or spaces shall extend either for the full depth of the ship's side or from the top of the double bottom to the uppermost deck, disregarding a rounded gunwale where fitted. They shall be arranged such that the cargo tanks are located inboard of the moulded line of the side shell plating, nowhere less than the distance w which, as shown in figure 1, is measured at any cross-section at right angles to the side shell, as specified below:

    or

    , whichever is the lesser.

    The minimum value of w = 1.0 m.

  (b) Double bottom tanks or spaces

SCHEDULE—continued

    At any cross-section the depth of each double bottom tank or space shall be such that the distance h between the bottom of the cargo tanks and the moulded line of the bottom shell plating measured at right angles to the bottom shell plating as shown in figure 1 is not less than specified below:

    h = B/15 (m) or

    h = 2.0 m, whichever is the lesser.

    The minimum value of h = 1.0 m.

    (c) Turn of the bilge area or at locations without a clearly defined turn of the bilge

    When the distances h and w are different, the distance w shall have preference at levels exceeding 1.5 h above the baseline as shown in figure 1.

  (d) The aggregate capacity of ballast tanks

    On crude oil tankers of 20,000 tons deadweight and above and product carriers of 30,000 tons deadweight and above, the aggregate capacity of wing tanks, double bottom tanks, forepeak tanks and afterpeak tanks shall not be less than the capacity of segregated ballast tanks necessary to meet the requirements of regulation 13. Wing tanks or spaces and double bottom tanks used to meet the requirements of regulation 13 shall be located as uniformly as practicable along the cargo tank length. Additional segregated ballast capacity provided for reducing longitudinal hull girder bending stress, trim, etc., may be located anywhere within the ship.

  (e) Suction wells in cargo tanks

    Suction wells in cargo tanks may protrude into the double bottom