The ship's boats required in 7.04.1 and 7.04.2 must meet the following requirements: ...
(f) with nobody aboard but entirely full of water, the boat's reserve buoyancy (in kg) must be at least 30 x length x bean x depth ...
Where a main transverse watertight compartment contains local subdivision ... a proportionate allowance may be made in the permissible length otherwise required for such compartment. In such a case the volume of the effective buoyancy assumed on the undamaged side shall not be greater than that assumed on the damaged side.