Regulations II-1/17-1.1.1 and II-1/20-2
1 Stern, bow and side doors of large dimensions, when manual devices would not be readily
accessible, should be normally secured by means of power systems.
2 Alternative means of securing should also be provided for emergency use in case of
failure of the power systems.
3 In ro-ro passenger ships constructed before 1 July 1997, all access doors or hatchways
to spaces below the ro-ro deck, which may be used at sea, should have sills or coamings
not less than 380 mm in height above the ro-ro deck, and should be provided with doors
or covers considered weathertight in relation to their position; refer to SOLAS
regulation II-1/20-2.
4 For ro-ro passenger ships constructed on or after 1 July 1997 but before 1 January
2009, refer to SOLAS regulation II-1/20-2.
5 The ro-ro deck, referred to in paragraph 3 above, is the deck above which the stern,
bow or side doors are fitted, or the first deck above the load waterline.
Regulation II-1/35-1.2.6.1
The drainage of enclosed spaces situated on the bulkhead deck to suitable spaces below
the bulkhead deck is also permitted provided such drainage is arranged in accordance
with the provisions of regulation 22(2) of the Protocol of 1988 relating to the
International Convention on Load Lines, 1966.