Upper Deck 3
Upper Deck 3 : The uppermost complete deck exposed to weather and sea: (a) which has permanent means of weathertight closing of all openings in the weather part thereof; and (b) below which all openings in the sides of the ship are fitted with permanent means of watertight closing. In a ship having a stepped upper deck, the lower line of the exposed deck and the continuation of that line parallel to the upper part of the deck is taken as the upper deck