In this Part unless the context otherwise requires—

• (a)length means the length taken as 96% of the total length on a waterline at 85% of the least moulded depth measured from the top of the keel, or as the length from the foreside of the stem to the axis of the rudder stock on that waterline if that be greater. In ships designed with a rake of keel, the “waterline on which this length is measured shall be parallel to the designed waterline, provided that, in a case where no relevant plans of a ship are available, the length maybe taken as 91% of the length overall, except in the case of ships of landing craft type when a figure of 88% of the length overall should be used;
• (b)moulded depth means the vertical distance measured from the top of the keel to the top of the freeboard deckbeams at side. In wood and composite ships the distance is measured from the lower edge of the keel rabbet. Where the form at the lower part of the midship section is of a hollow character or where thick garboards are fitted, the distance is measured from the point where the line of the flat of the bottom continued inwards cuts the side of the keel. In ships having rounded gunwales, the moulded depth shall be measured to the point of intersection of the moulded lines of the deck and sides, the lines extending as though the gunwales were of angular design. Where the freeboard deck is stepped and the raised part of the deck extends over the point at which the moulded depth is to be determined the moulded depth shall be measured to a line of reference extending from the lower part of the deck along a line parallel with the raised part;
• (c)Position 1 means a position upon exposed freeboard and raised quarter decks and upon exposed superstructure decks, situated forward of a point located a quarter of the ship’s length from the forward perpendicular;
• (d)Position 2 means a position upon exposed superstructure decks situated abaft a quarter of the ship’s length from the forward perpendicular; and
• (e)ship does not include a ship that is a Load Line Convention ship or a ship in respect of which a valid International Load Line Certificate or an International Load Line Exemption Certificate is in force.