Where freeboards are not required to be increased, because
of such considerations as strength (regulation
1), location of shell doors (regulation
21) or sidescuttles (regulation 23)
or other reasons, then:
on the actual freeboard deck may be a required for a superstructure
deck, provided the summer freeboard is such that the resulting draught
will not be greater than that corresponding to the minimum freeboard
calculated from an assumed freeboard deck situated at a distance equal
to a standard super-structure height below the actual freeboard deck.
Similar considerations may be given in cases of draught limitation
on account of bow height (regulation 39).