Marine Pollution (Prevention of Pollution from Ships) Act, 1986 (Act No. 2 of 1986)

Schedule

International Convention for the Prevention of Pollution from Ships, 1973

Protocol of 1978

Relating to the International Convention for the Prevention of Pollution from Ships, 1973

Annexes : Regulations

Annex I : Regulations for the Prevention of Pollution by Oil

Chapter III : Requirements for Minimizing Oil Pollution from Oil Tankers due to Side and Bottom Damages

Regulation 22 : Damage Assumptions

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(1)For the purpose of calculating hypothetical oil outflow from oil tankers, three dimensions of the extent of damage of a parallelepiped on the side and bottom of the ship are assumed as follows. In the case of bottom damages two conditions are set forth to be applied individually to the stated portions of the oil tanker.

 

(a)

Side damage



(i)

Longitudinal extent (c):

1/3 L 2/3 or 14.5 metres, whichever is less


(ii)

Transverse extent (tc):

(inboard from the ship's side at right angles to the centreline at the level corresponding to the assigned summer freeboard)

B/5 or 11.5 metres, whichever is less


(iii)

Vertical extent (vc)

from the base line upwards without limit

(b)

Bottom damage





For 0.3L from the forward perpendicular of the ship

Any other part of the ship


(i)

Longitudinal extent  (c):

L10

L/10 or 5 metres, whichever is less


(ii)

Transverse extent

B/6 or 10 metres whichever is less but not less than 5 metres

5 metres


(iii)

Vertical extent from the base line (vs):

B/15 or 6 metres, whichever is less


 

(2)Wherever  the  symbols  given  in  this  Regulation  appear  in  this  Chapter,  they  have  the meaning as defined in this Regulation.