TechnicalNoticeonMSC.1-Circ.1564–RevisedGuidanceforWatertightDoorsonPassengerShipsWhichMaybeOpenedduringNavigationIssuedbyIMO

CCSTechnical Information(2018)Technical Information No.25 Total No.351Apr.20,2018(Total 10 pages)To:relevant departments of CCS Headquarters,CCS surveyors,plan approval centers,relevant ship owners,shipyards,designers and shipping management companiesTechnical Notice on MSC.1-Circ.1564--Revised Guidance forWatertight Doors on Passenger Ships Which May be Opened duringNavigation Issued by IMO1、BackgroundThe Maritime Safety Committee of International Maritime Organization (IMO)approved MSC.1/Circ.1564--Revised guidance for watertight doors on passenger shipswhich may be opened during navigation,which invited Member States to apply andbring the annexed Revised guidance to the attention of passenger shipowners,operators and all other parties concerned for application to passenger shipsconstructed on or after the date of entry into force of the associated amendments toSOLAS regulation Il-1/22.2.Main revisionsIn this Circular,the requirements of Category A watertight doors are deleted on thebasis of MSC.1/Circ.1380,and floatability assessment are also required to beperformed for the watertight doors that may be temporarily opened to permit thepassage of passengers or crew.Floatability assessment is also required to beperformed for Category B watertight doors.This Notice is made public on CCS website (www.ccs.org.cn),and is to be distributed