Freeing Ports ( Regulation 24(1) and 24(5) ) (IACS interpretation LL.13)
Clasification Society 2023 - Version 9.38
Statutory Documents - IMO Publications and Documents - International Conventions - Load Lines, 1966/1988 - International Convention on Load Lines, 1966, as Amended by the Protocol of 1988 - Unified Interpretations of the Provisions of the International Convention on Load Lines, 1966 - Freeing Ports (Regulation 24(1) and 24(5)) (IACS interpretation LL.13)

Freeing Ports ( Regulation 24(1) and 24(5) ) (IACS interpretation LL.13)

 On a flush deck ship with a substantial deckhouse amidships the deckhouse is considered to provide sufficient break to form two wells and each could be given the required freeing port area based upon the length of the "well". It would not then be necessary to base the area upon 0.7L.

 In defining a substantial deckhouse the breadth of the deckhouse should be at least 80% of the beam of the vessel, and the passageways along the side of the ship should not exceed 1.5 metres in width.

 Where a screen bulkhead is fitted completely across the vessel, at the forward end of a midship deckhouse, this would effectively divide the exposed deck into wells and no limitation on the breadth of the deckhouse is considered necessary in this case.

 Wells on raised quarter decks should be treated as previously, i.e. as being on freeboard decks.

 With zero or little sheer on the exposed freeboard deck or an exposed superstructure deck the freeing port area should be spread along the length of the well.

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