special offers and listing announcements delivered directly to your inbox. However in June 2009, based on further input from industry, IACS Council decided to postpone the implementation of RCN 1 (for July 2008 consolidated edition) until such time as an additional technical study was completed. Bulker CSR - CIP(Common Interpretations Procedures) as issued, 06. To assist in meeting these demands, certain physical features can be incorporated during construction to provide access to all parts of the hull structure. Rule Change Notice No.1 and 2 were incorporated into the 1 July 2008 consolidated edition. 1.2.1 Double Hull Oil Tanker A Double Hull Oil Tanker is a ship which is constructed primarily for the carriage of oil1) in bulk, which have the cargo tanks protected by a double hull which extends for the entire length of the cargo area, consisting of double sides and double bottom spaces for the carriage of water ballast or void spaces. These Rules will be superseded by the CSR BC & OT on effective date 1 July 2015. A consolidated edition incorporating all the previous RCNs and Corrigenda effective as of 1 July 2012 was issued on 03 May 2012. For many years, oil tankers had been designed and constructed based on the single hull concept. Please enter your email address to have news, Rule Change Notice No.2 (Feb 2008) applied to ships contracted for construction on or after 1 July 2008. Registered in England No. CSR Double Hull Oil Tanker, Consolidated Effective as of 1 July 2012, 02. The authors also show the advantages of this new concept whichmore » are beneficial to owners and operators.« less. to a vessel's construction cost with no offsetting income. As of 3 May 2012), 3. CSR Tankers Rule Texts effective on 1 April 2006 (Original), 2. –. 2717077. They will be able to trade until they are 25-30 years old before they will be required to meet the enhanced design criteria. Inc.), the U.S. tanker, In the oil tanker, oil shipping industry, there is no single fail-safe design that can ensure spill-free protection under all possible circumstances. The Rule change may have been adopted before 1 July 2008 at the discretion of the Society. © 2005-2020 Go Shipping & Management Inc The enhanced design criteria will take effect July 6, 1993, for new and existing vessels from 70 nations that have signed the International Convention for the Prevention of Pollution from Ships (Marpol 73/78). History of Revision - All Texts of Corrigendum and RCNs, 04. RCN 1 for Double Hull Oil Tanker CSR (for 1 July 2010 consolidated edition) was published on 22 February 2012 and was effective from 1 July 2012. MEPC also tackled the problem of existing single hulled vessels. IACS Members can login below to access internal IACS documents and procedure. CSR for Double Hull Oil Tankers (Full Text), 03. Some critics, however, have pointed out various problems with the conventional double hull VLCC, such as difficulties in inspection and coating maintenance of the double hull spaces, higher hull girder still water bending moment, etc. Small tankers, of 600-5,000 dwt, must be fitted with a double bottom. By design, the structural area of the double-hull tanker exposed to ballast water will be considerably increased compared to the single-hull tanker. For corrections and amendments thereafter, please refer to the Revision History Table (item 2 below). IMO group approves enhanced design rules for tankers, Design considerations for corrosion control of double-hull tankers, World-Wide Shipping Agency Pte Ltd., Singapore (Singapore). Conventional double hull tankers are designed to have the double hull spaces at the sides and bottoms which are normally used as ballast water tanks in order to reduce oil leakage in case of collision or grounding.