Inland Waters Small Passenger Boat Code CATEGORY D WATERS 6 WATER FREEING ARRANGEMENTS / DECK DRAINAGE 6.1 Decked vessels (See definitions in Annex 2). 6.1.1 In a decked vessel, which complies with the freeboard provisions of Section 12 and Annex 9 of this Code, efficient provision is to be made to clear the deck of water which may be taken onboard. Where water may get trapped, the vessel should have a minimum of two efficient freeing ports – one fitted port and one starboard. 6.1.2 These ports should each have a clear area of 225sq cm. This figure is based on maximum expected wave heights. Smaller ports may be suitable in a vessel having only small side deck areas, in which water can be trapped, the reduced area being based on the volume of water that is likely to become so trapped. 6.1.3 A motor vessel fitted with a watertight weather deck, which does not meet the freeboard provisions of Section 12 and Annex 9 of this Code, but which possesses adequate reserves of buoyancy above the weather deck, such as landing craft, should satisfy the following conditions: 1. Freeboard to the gunwale edge should be as in Annex 9 of this Code. 2. The recess bounded by the reserve buoyancy and gunwales should meet the standard for quick-draining cockpits, within ISO 11812 Small Craft - Watertight Cockpits and Quick-draining Cockpits, or equivalent. 3. The vessel should meet the relevant intact stability criteria for transverse stability, and should display positive longitudinal stability for the duration of the drain time. 6.1.4 Alternatively, it may be treated as an open vessel. 6.2 Open Vessel In an open vessel provision should be made to clear water from any deck areas not draining into the bilge. N.B. Paragraph numbering may not be consecutive, as this page only
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