TechnicalNoticeonUNIFIEDINTERPRETATIONSOFSOLASCHAPTERII-2(MSC.1-Circ.1616)

CCSTechnical Information(2020)Technical Information No.16 Total No.450Feb.05,2020(Total 2 pages)To:Ship owners,Shipyards,Products Manufacturers and Designers,Relevant departments of CCSHeadquarters,CCS site surveyors,CCS plan approval centersTechnical Notice on "UNIFIED INTERPRETATIONS OF SOLASCHAPTERⅡ-2”MSC.1/Circ.1616Issued by IMOI Foreword1.1 The Maritime Safety Committee of International Maritime Organization,at its101th session(5 to 14 June 2019),approved "UNIFIED INTERPRETATIONS OFSOLAS CHAPTER II-2"(MSC.1/Circ.1616).1.2 The circular applies to all passenger ships and cargos ships with GT>500constructed on or after 26 June 2019.II.Technical points2.1 Main contents(1)Interpretation of SOLAS II-2/9.2In cases where urea or sodium hydroxide solution tanks for selective catalyticreduction (SCR)systems,exhaust gas recirculation (EGR)systems or exhaust gascleaning systems (EGCS)are installed in a space separated from the engine-room,indetermining fire integrity of divisions,the solution tank space should be considered as"similar spaces"in the definition of"machinery spaces"in regulation 3.30 and shouldbe categorized as: