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Watertight Doors – SOLAS Regulation and Technical Standards – Set A

Source: Annex – Guidance for Watertight Doors on Passenger Ships Which may be Opened During Navigation, section 5 – SOLAS regulation and technical standards for watertight doors.
Reference: imorules.com – SOLAS regulation and technical standards for watertight doors

Question 8 of 10
8. What must a watertight door being open be determined to be, before it may be permitted to remain open during navigation?