STEEL VESSELS UNDER 90 METERS (295 FEET) IN LENGTH 2012

RULES FOR BUILDING AND CLASSING STEEL VESSELS UNDER 90 METERS (295 FEET) IN LENGTH 2012 NOTICES AND GENERAL INFORMATION American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862 Copyright 2011 American Bureau of Shipping ABS Plaza 16855 Northchase Drive Houston, TX 77060 USA

T a b l e o f C o n t e n t s N&GI Notices and General Information CONTENTS Introduction... 1 TABLE 1 Applicable Editions of Booklets Comprising 2012 Rules...2 TABLE 2 Division and Numbering of Rules...2 Rule Change Notice (2012)... 3 TABLE 3 Summary of Changes from the 2011 Rules...3 ii ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS UNDER 90 METERS (295 FEET) IN LENGTH. 2012

Introduction 1. The year 2012 edition of the Rules for Building and Classing Steel Vessels Under 90 meters (295 feet) in Length consists of the eight (8) booklets as shown in Table 1. With regard to three booklets, Part 1, Part 2, and Part 7: a) The purpose of the generic title ABS Rules for Conditions of Classification (Part 1) is to reflect the expanded contents of PART 1, as a result of including consolidated requirements for Classification applicable to all types of and sizes of vessels, barges and specific shipboard arrangements/systems, etc., except for those in offshore service, as specified in the Foreword to Part 1. Additional specific requirements are contained in Part 1 of these Rules for Building and Classing Steel Vessels Under 90 meters (295 feet) in Length b) The purpose of the generic title ABS Rules for Materials and Welding of PART 2 is to emphasize the common applicability of the requirements to ABS-classed vessels, other marine structures and their associated machinery, and thereby make PART 2 more readily a common PART of various ABS Rules and Guides, as appropriate. c) The purpose of the generic title ABS Rules for Survey After Construction (Part 7) is to reflect the expanded contents of PART 7, as a result of including consolidated requirements for Surveys After Construction applicable to all types and sizes of vessels, barges and specific shipboard arrangements/systems, etc., as specified in Part 7, Chapter 1, Section 1. 2. The numbering system applied in the Rules is shown in Table 2. 3. The primary changes from the 2011 edition of the Rules are identified and listed in Table 3. The effective date of the indicated Rule Changes is 1 January 2012, unless specifically indicated otherwise. 4. The effective date of each technical change since 1993 is shown in parenthesis at the end of the subsection/paragraph titles within the text of each Part. Unless a particular date and month are shown, the years in parentheses refer to the following effective dates: (2000) and after 1 January 2000 (and subsequent years) (1996) 9 May 1996 (1999) 12 May 1999 (1995) 15 May 1995 (1998) 13 May 1998 (1994) 9 May 1994 (1997) 19 May 1997 (1993) 11 May 1993 5. Until the next edition of the Rules for Building and Classing Steel Vessels Under 90 meters (295 feet) in Length is published, Rule Change Notices and/or Corrigenda, as necessary, will be published on the ABS website www.eagle.org only, and will be available free for downloading. It is not intended to publish hard copies of future Rule Change Notices and/or Corrigenda to existing Rules or Guides. The consolidated edition of the Rules for Building and Classing Steel Vessels Under 90 meters (295 feet) in Length, which includes Rule Change Notices and/or Corrigenda using different colors for easy recognition will be published on the ABS website only when RCN and/or Corrigenda are issued. 6. The listing of CLASSIFICATION SYMBOLS AND NOTATIONS is available from the ABS website www.eagle.org for download. ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS UNDER 90 METERS (295 FEET) IN LENGTH. 2012 1

TABLE 1 Applicable Editions of Booklets Comprising 2012 Rules Notices and General Information 2012 Part 1: Rules for Conditions of Classification (1) 2012 (2) Part 1: Conditions of Classification (Supplement to the ABS Rules for 2012 Conditions of Classification) (1) Part 2: Rules for Materials and Welding 2012 (2) Rules for Testing and Certification of Materials Rules for Welding and Fabrication Part 3: Hull Construction and Equipment 2012 Part 4: Vessel Systems and Machinery 2012 Part 5: Specialized Vessels and Services 2012 Chapter 11 Vessels Intended for Towing Chapter 12 Fishing Vessels Part 7: Rules for Surveys After Construction 2012 (2) Notes: 1 The requirements for conditions of classification are contained in the separate, generic ABS Rules for Conditions of Classification (Part 1). Additional specific requirements are contained in Part 1 of these Rules. 2 The latest edition of these Rules is to be referred to. After 2012, these Rules may be downloaded from the ABS website at www.eagle.org, Rules and Guides, Downloads or may be ordered separately from the ABS Publications online catalog at www.eagle.org, Rules and Guides, Catalog. TABLE 2 Division and Numbering of Rules Division Number Part Part 1 Chapter Part 1, Chapter 1 Section Section 1-1-1 Subsection (see Note 1) 1-1-1/1 Paragraph (see Note 1) 1-1-1/1.1 Subparagraph 1-1-1/1.1.1 Item 1-1-1/1.1.1(a) Subitem 1-1-1/1.1.1(a)i) Appendix Appendix 1-1-A1 or Appendix 1-A1-1 Note: 1 An odd number (1, 3, 5, etc.) numbering system is used for the Rules. The purpose is to permit future insertions of even-numbered paragraphs (2, 4, 6, etc.) of text and to avoid the necessity of having to renumber the existing text and associated cross-references, as applicable, within the Rules and associated process instructions, check sheets, etc. 2 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS UNDER 90 METERS (295 FEET) IN LENGTH. 2012

Rule Change Notice (2012) TABLE 3 Summary of Changes from the 2011 Rules EFFECTIVE DATE 1 July 2011 shown as (1 July 2011) (based on the contract date for new construction between builder and Owner) Part/Para. No. Title/Subject Status/Remarks PART 3 Hull Construction and Equipment 3-1-2/9.5 Fabrication To withdraw the ABS Guide for Shipbuilding and Repair Quality Standard for Hull Structures During Construction and refer to IACS Recommendation No. 47 Shipbuilding and Repair Quality Standard. (Incorporates Notice No. 1) 3-4-1/1.7 Materials Containing Asbestos To align the requirements with IMO Res. MSC.282(86), adopting SOLAS Reg II-1/3-5.2, which prohibits installation of materials containing asbestos on all ships (both new construction and existing vessels) after 1 January 2011. (Incorporates Notice No. 1) 3-6-1/1.1.2(b) <No Title> To align the requirements for bridge wing visibility with IACS UI SC325. (Incorporates Notice No. 1) 3-6-1/Figure 2 <No Title> To align the requirements for bridge wing visibility with IACS UI SC325. (Incorporates Notice No. 1) PART 4 Vessel Systems and Machinery 4-3-3/1.3.3 Steering Gear Control Systems To clarify the definition to bring attention to the power actuating system for the steering gear, instead of only the power unit for the steering gear. (Incorporates Notice No. 1) 4-3-3/11 Locations of Control To provide a requirement for monitoring of loop failures. To provide a requirement for monitoring of failures of steering control systems that are computer based systems To clarify that that monitoring for hydraulic lock is not required when a steering failure alarm system is provided. (Incorporates Notice No. 1) EFFECTIVE DATE 1 January 2012 shown as (2012) (based on the contract date for new construction between builder and Owner) Part/Para. No. Title/Subject Status/Remarks PART 3 Hull Construction and Equipment 3-1-2/Table 4 Hull Components and Equipment List for Steel Vessels Under 90 Meters To add tabular listing of survey requirements for hull components and equipment for vessels under 90 meters. 3-2-1/7.3 Hull Girder Moment of Inertia To clarify the requirements in line with IACS UR S4. 3-2-7/3.5 Chain Lockers To align the requirements for chain lockers with recent revisions to IACS UR L4. 3-2-10/Figure 3 Propeller Nozzle Section View To clarify the definitions of propeller nozzle zones and dimensions. 3-2-11/Table 2 Coefficient k l To define coefficient k l for steering nozzles and azimuthal thrusters. 3-2-11/7 Rudder Stocks To align the requirements for rudder stocks with IACS UR S10. 3-2-11/15.1 Bearings To align the requirements for rudder supporting and anti-lifting devices with IACS UR S10. 3-2-11/15.3 Rudder Carrier To align the requirements for rudder supporting and anti-lifting devices with IACS UR S10. 3-2-11/Table 6 Allowable Bearing Surface Pressure To align the requirements for rudder supporting and anti-lifting devices with IACS UR S10. 3-2-11/21 Steering Nozzles To add requirements for steering nozzles. ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS UNDER 90 METERS (295 FEET) IN LENGTH. 2012 3

Part/Para. No. Title/Subject Status/Remarks 3-2-11/23 Azimuthal Thruster To add requirements for azimuthal thrusters. 3-5-1/1 General To provide requirements for equipment mass and size for unconventional vessels or vessels with unique topside arrangements or operational profiles. 3-5-1/3.1 Basic Equation To align the definition of profile area with IACS UR A1. 3-7-1/7.3 Temporary Coating To clarify that epoxy-based shop primers may conceal defects. PART 4 4-1-1/3.9 4-1-1/Table 3 Vessel Systems and Machinery Equipment List Equipment List for Steel Vessels Under 90 Meters To add reference to new 4-1-1/Table 3 listing of survey requirements for machinery and equipment for vessels under 90 meters in length. To add tabular listing of survey requirements for machinery and equipment for vessels under 90 meters. 4-3-1/5.1.2 Elongation To indicate specified minimum elongation as both 4d and 5d in order to accommodate American and other conventions. To accommodate alloy steels with elongation lower than 16%. 4-3-1/7.1 Shaft Diameters To clarify the definition of required solid shaft diameter D in 4-3-1/7.1 to take into account both the steady-state propulsion torque and any vibratory torque acting on the shaft in the vicinity of the coupling flanges. 4-3-1/7.5 4-4-1/9.10 4-4-2/5.8 Alternative Criteria Damage Stability Consideration Aluminum To provide an alternative criterion for designing of propulsion shafting in line with the requirements 4-3-2/5.5 of the Steel Vessel Rules. To introduce requirements for piping location in relation to an assumed damage zone. To require mean to prevent progressive flooding where open ended piping systems are located below the bulkhead deck and penetrate watertight subdivision bulkheads, in line the Steel Vessel Rules. To align the requirements with SOLAS II-2/4. 2.2.5.1 Oil Fuel Piping, (and II-2/4. 3 Lube Oil, and II-2/4. 4 Other Flammable Oils). 4-4-2/23.3.1 Overboard Gravity Discharges Normally Open To align the Rules with Regulation 22 of the International Convention on Load Lines, 1966 and Protocol of 1988, as amended in 2003. 4-4-2/Figure 3 4-4-2/23.3.5 Overboard Discharges Valve Requirements Required Minimum Wall Thicknesses for Pipes To portray the requirements of 4-6-4/3.3 in greater detail, in line with IACS UI LL11 Rev3. To align the Rules with IACS UI LL36 Rev2. 4-5-2/15 Fireman s Outfit To revise the requirements for spare charges of the breathing apparatus are revised in line with the Steel Vessel Rules. 4-5-2/21 Fire Detection and Fire Alarm Systems To align the requirements for manually operated call points with IACS UI SC 241 (Nov. 2010), which interprets SOLAS II-2/7.7. 4-6-2/1.7 Load Analysis To provide a more comprehensive list of the relevant Rule requirements. 4-6-2/5.3 Emergency Services To clarify the requirements for loads on the emergency generator. 4-6-4/3.13.2(b) Rotors of Integrated Auxiliary Machinery To specify that for the line shafting evaluation purpose, the fatigue analysis specified in 4-3-1/71 of the Rules may also be considered. 4-7-4/33.3.10 <No Title> To require shutdown of fixed local application fire fighting systems before activation of a high-expansion foam fire extinguishing system to avoid adverse water action on the foam. PART 5 Specialized Vessels and Services Part 5 Foreword To provide references to the OSV Guide requirements for Fire Fighting, Oil Spill Recovery and Escort Vessels. Chapter 5-9 Fire Fighting Vessels To withdraw the Chapters of Part 5 for vessel types which are to be Chapter 5-10 Vessels Intended for Support Services to Offshore Installations To withdraw the Chapters of Part 5 for vessel types which are to be 4 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS UNDER 90 METERS (295 FEET) IN LENGTH. 2012

Part/Para. No. Title/Subject Status/Remarks Chapter 5-11 Oil Recovery Vessels To withdraw the Chapters of Part 5 for vessel types which are to be Chapter 5-12 Safety Standby Service Vessels To withdraw the Chapters of Part 5 for vessel types which are to be Chapter 5-13 Escort Vessels To withdraw the Chapters of Part 5 for vessel types which are to be Chapter 5-15 Anchor Handling Vessels To withdraw the Chapters of Part 5 for vessel types which are to be Chapter 5-16 Well Stimulation Vessels To withdraw the Chapters of Part 5 for vessel types which are to be ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS UNDER 90 METERS (295 FEET) IN LENGTH. 2012 5

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