1 This regulation applies to passenger ships designed
or adapted for the carriage of goods vehicles and accompanying personnel.
2 If in such a ship the total number of passengers
which include personnel accompanying vehicles does not exceed 12 + Ad
/25, where Ad
= total
deck area (square metres) of spaces available for the stowage of goods
vehicles and where the clear height at the stowage position and at
the entrance to such spaces is not less than 4 m, the provisions of regulations 13.9.1 and 13.9.2 in
respect of watertight doors apply except that the doors may be fitted
at any level in watertight bulkheads dividing cargo spaces. Additionally,
indicators are required on the navigation bridge to show automatically
when each door is closed and all door fastenings are secured.
3 The ship may not be certified for a higher number
of passengers than assumed in paragraph 2, if a watertight door has
been fitted in accordance with this regulation.