INTACT STABILITY CODE

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IMO has developed intact stability standards for various types of ships, leading to the completion of the Code on the Intact Stability for All Types of Ships Covered by IMO Instruments intact stability(IS Code) in the 1993 (resolution A.749(18)) & after amendments(resolution MSC.75(69)). The IS Code includes fundamental principles such as general safeguarding against capsizing (conditions concerning metacentric height (GM) & righting lever (GZ)); weather conditions(severe wind and rolling criterion); effect of free surfaces & icing; & watertight integrity.  The intact stability(IS Code) also addressed associated operational aspects like information for the master, including stability & operating booklets & operational process in heavy weather.

In 2008, the Maritime Safety Committee, at its eighty-fifth session, adopted the International Code on Intact Stability, 2008 (2008 IS Code), following extensive considerations by the SLF Sub-Committee & considering technical developments, to enhance the 1993 Intact Stability Code(IS Code).  MSC 85 also accepted amendments to the SOLAS Convention & to the 1988 Load Lines Protocol to make the 2008  Intact Stability Code(IS Code) obligatory, which enforced on 1st July 2010.  The 2008 Intact Stability Code(IS Code) furnish, in a single document, both obligatory instructions & recommended provisions relating to intact stability that will significantly impact the design & the overall safety of ships.