STABILITY OF SHIPS
"attained subdivision index" means the attained subdivision index of the ship calculated in accordance with regulation 15;
"subdivision length" means the greatest projected moulded length of that part of the ship at or below deck or decks limiting the vertical extent of flooding with the ship at the deepest subdivision load line;
"subdivision load line" means a waterline used in determining the subdivision of the ship; and
"deepest subdivision load line" means the subdivision load line which corresponds to the draught corresponding to the summer load line assigned to the ship under the Merchant Shipping (Load Lines) Rules 200….