Section 12A(6) in The Merchant Shipping (Prevention of Pollution by Oil from Ships) Rules, 2010
(6)For ships, other than self-elevating drilling units, having an aggregate oil fuel capacity of 600 m3 and above, oil fuel tanks shall be located above the moulded line of the bottom shell plating no where less than the distance h as specified below:h = B/20 (m) or,h = 2.0 m, whichever is the lesser.The minimum value of h = 0.76 mIn the tum of the bilge area and at locations without a clearly defined tum of the bilge, the oil fuel tank boundary line shall run parallel to the line of the midship flat bottom as shown in Figure 1.
