Hull Construction Regulations (C.R.C., c. 1431)

120 (1) Every interior crew access opening that gives direct access to a space below the main deck from inside a wheelhouse shall be fitted with a type ‘A’ closing appliance.

(2) Subject to subsection (3), every interior crew access opening that gives direct access to a space below the main deck, other than an opening described in subsection (1), shall be fitted with a closing appliance that

• (a) in association with the reinforcing of the opening is of equivalent strength to the unpierced structure in which it is set;

• (b) is close fitting and supported around the perimeter against external pressure;

• (c) if hinged, opens outwards from the space below the main deck;

• (d) if it gives access to the engine room, is self-closing and is provided with a fire protective sheathing on the engine room side; and

• (e) if it gives access from an accommodation space to the engine room, is gastight.

(3) An interior crew access opening that gives direct access to a watertight accommodation space below the main deck is not required to be fitted with a closing appliance where

• (a) the opening is located inside a structure in which every exterior crew access opening is fitted with a type ‘A’ closing appliance; and

• (b) no part of the main deck is submerged when that accommodation space is completely flooded.

(4) Every interior door that gives access to an accommodation space and that is not required by these Regulations to be fitted with a type ‘A’ closing appliance, a type ‘B’ closing appliance or a closing appliance described in subsection (2) shall be fitted with a kick-out panel in the lower half of the door.