Regulation 13 – Openings in Watertight Bulkheads Below the Bulkhead Deck in Passenger Ships

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Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.281(85) – Explanatory Notes to the SOLAS Chapter II-1 Subdivision and Damage Stability Regulations – (Adopted on 4 December 2008) - Explanatory Notes to the SOLAS Chapter II-1 Subdivision and Damage Stability Regulations - Part B – Guidance on Individual SOLAS Chapter II-1 Subdivision and Damage Stability Regulations - Regulation 13 – Openings in Watertight Bulkheads Below the Bulkhead Deck in Passenger Ships

Regulation 13 – Openings in Watertight Bulkheads Below the Bulkhead Deck in Passenger Ships

General – Steps in the bulkhead deck

1 If the transverse watertight bulkheads in a region of the ship are carried to a higher deck which forms a vertical step in the bulkhead deck, openings located in the bulkhead at the step may be considered as being located above the bulkhead deck. Such openings should then comply with regulation 17 and should be taken into account when applying regulation 7-2.

2 All openings in the shell plating below the upper deck throughout that region of the ship should be treated as being below the bulkhead deck and the provisions of regulation 15 should be applied. See figure below.

Regulation 13.4

In cases where main and auxiliary propulsion machinery spaces, including boilers serving the needs for propulsion, are divided by watertight longitudinal bulkheads in order to comply with redundancy requirements (e.g., according to regulation 8-1.2), one watertight door in each watertight bulkhead may be permitted, as shown in the figure below.

Regulation 13.7.6

The IEC standard referenced in the footnote (IEC publication 529, 1976) has been replaced by the newer standard IEC 60529:2003.

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