Division .3 Windows facing life-saving appliances, embarkation and assembly areas, external stairs and open decks used for escape routes, and windows situated below life-raft and escape slide embarkation areas shall have the fire integrity as required in the tables of Regulation 4. Where automatic dedicated sprinkler heads are provided for windows, ‘A-0’ windows may be accepted as equivalentF1

In new class B, C and D ships constructed on or after 1 January 2003 , the automatic dedicated sprinkler heads must either be:

1. .1

   dedicated heads located above the windows and installed in addition to the conventional ceiling sprinklers; or

2. .2

   conventional ceiling sprinkler heads arranged such that the window is protected by an average application rate of at least 5 litres/m ² per minute and the additional window area is included in the calculation of the area of coverage.

Windows located in the ship’s side below the lifeboat embarkation areas shall have the fire integrity at least equal to ‘ A-0 ’ class.