ࡱ> _a^'` bjbjVwVw vH44f6666$V#V#V#P#\$\;xj$j$L$$$%%%9999999$}>h@9![)%%[)[)966$$:V,,,[)68$$9,[)9,,r6Tn7$^$ 0>YV#+*T79]:;&7A+A77A7<%c&|,&dC'%%%99,^%%%;[)[)[)[)NdN666666 UI SC 226 IACS Unified Interpretations (UI) on the application of SOLAS regulations to conversions of Single-Hull Oil Tankers to Double-Hull Oil Tankers or Bulk Carriers Part A. Revision History Version no.Approval dateImplementation date when applicableRev.1 (Dec 2012)04 December 20121 January 2014New (Nov 2008)13 November 2008- Rev 1 (May 2011) .1 Origin of Change: MSC and MEPC issued MSC-MEPC.2/Circ.10 which took into account most of the provisions in UI SC 226 (New, Nov 2008). .2 Main Reason for Change: To be consistent with MSC-MEPC.2/Circ.10. .3 List of non-IACS Member classification societies contributing through the TC Forum and/or participating in IACS Working Group: None .4 History of Decisions Made: After meeting some resistance from the EC and a few EU Member States on the original version of SC 226 submitted by DE 52/17/1, IACS submitted DE 53/16 which, after taking into account comments made at DE 52, presented the Nov 2008 version of SC 226 together with the TB for each interpretation contained therein. EU Member States concerns raised at DE 53 focused on the extent of application and lack of clarity of bridge visibility limits (SOLAS V), the structural and stability requirements (SOLAS XII) and the need retroactively fit a free-fall life boat on a converted bulk carrier. Due to a lack of time, DE 53 decided to continue discussions at DE 54. EU Member States presented arguments in DE 54/5/1 on concerns raised verbally at DE 53 plus additional issues to which IACS countered with DE 54/5/3. IACS arguments prevailed and the agreed Circular was sent to MSC 89 for approval. MSC 89 and, after NAV 57 concurred with DE 54 on bridge visibility, MEPC 62 approved MSC-MEPC.2/Circ.10. Norway reserved their position with respect to the fitting of free-fall lifeboats in that ships converted into bulk carriers are allowed to maintain their existing lifeboat arrangements. .5 Other Resolutions Changes: None .6 Dates: Original Proposal: May 2011 Made by Statutory Panel Panel Approval: 24 October 2012 by Statutory Panel GPG Approval: 04 December 2012 (Ref: 10061_IGj) New (Nov 2008) .1 Origin of Change: INTERCARGO email containing questions concerning the certification of conversion of VLCCs to VLOCs (circulated by GPG email 7658_IGa, 14 Sep 2007) .2 Main Reason for Change: N.A. .3 List of non-IACS Member classification societies contributing through the TC Forum and/or participating in IACS Working Group: None .4 History of Decisions Made: IACS sought clarification from SLF S/C (SLF 48/17/1, July 2005) on "alterations and modifications of a major character" for application of the PMA requirements under SOLAS II-I/3-6 and on the SOLAS chapter II-1 regulations concerning the ship structure, subdivision and stability, machinery and electrical installations as to what constitutes major alterations and modifications other than those related to stability and subdivision as contained in MSC/Circ.650 and MSC.1/Circ.1246. SLF sent the request to DE for a decision. Based on IACS submissions to DE 51 (DE 51/20 and DE 51/20/1), MSC approved MSC.1/Circ.1284 in December 2008 which addresses the application of SOLAS II-1/1.3, concerning repairs, alterations and modifications of a major character; the applicability of SOLAS II-1/3-6 (PMA) to single-hull tankers converted to double-hull tankers; and the term substantial new structures. However, IACS request to consider the application of the entirety of SOLAS in a holistic manner required IACS (and a Member State) to submit a proposal for a new work program item to MSC. IACS (and the Republic of Korea) submitted a proposed new work item as per MSC 85/23/7. IACS submitted the original version of SC 226 by DE 52/17/1 for consideration. .5 Other Resolutions Changes: None .6 Dates: Original Proposal: November 2008 Made by Statutory Panel GPG Approval: 13 November 2012 (Ref: 7658aIGz) Part B. Technical Background List of Technical Background (TB) documents for UI SC226: Annex 1. TB for New (Nov 2008) See separate TB document in Annex 1. %%% Annex 2. 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