What are damage stability criteria for passenger ships as per SOLAS?

and the flooding of any 3 adjacent main compartments Passenger ships; Define ‘Margin Line’ A line drawn at least 76mm below the upper surface of the the bulkhead deck at the side of a subdivided ship Passenger ships; Define ‘Bulkhead Deck’ The uppermost deck to which the transverse watertight bulkheads are carried Passenger ships; Define ‘Factor of Subdivision’ Is a number with a maximum value of 1. It varies inversely as the length of the vessel and number of passengers increase.
i.e. Longer vessel, more passengers = Smaller F Passenger ships; Define ‘Permissible length’ Equal to the Floodable length x Factor of Subdivision (F)The The maximum length of a compartment shall not exceed it’s ‘Permissible length’ Passenger ships; Define ‘Floodable length’ Maximum length of that portion having it’s centre at a given point which can be flooded without submerging any part of the margin line when the ship has no list