1.1 Where a cargo hatchway, complying with the
requirements of regulation 16 and having a coaming height that extends
above the level of the superstructure deck, is fitted in the recess
and covering the whole area of the recess, the hatchway may be taken
into account as forming a part of the superstructure, and the effective
length of the superstructure need not be reduced by the amount equivalent
in area to the area of the recess.
1.2 The hatchway coaming height should be in accordance
with regulation 16(1), measured from the superstructure deck level.