PERIODICAL SURVEY REQUIREMENTS

RULES FOR CLASSIFICATION OF SHIPS SHIPS IN OPERATION PART 7 CHAPTER 2 PERIODICAL SURVEY REQUIREMENTS JANUARY 2001 CONTENTS PAGE Sec. 1 General Requirements... 7 Sec. 2 Survey Extent Main Class... 18 Sec. 3 Survey Extent Additional Class. Special Service and Type Notations... 29 Sec. 4 Survey Extent Additional Class. Special Equipment and Systems Notations... 55 Veritasveien 1, N-1322 Høvik, Norway Tel.: +47 67 57 99 00 Fax: +47 67 57 99 11

CHANGES IN THE RULES General The present edition of the rules includes additions and amendments decided by the board in December 2000, and supersedes the January 2000 edition of the same chapter. The rule changes come into force 1 July 200 This chapter is valid until superseded by a revised chapter. Supplements will not be issued except for an updated list of minor amendments and corrections presented in Pt.0 Ch.1 Sec. Pt.0 Ch.1 is normally revised in January and July each year. Revised chapters will be forwarded to all subscribers to the rules. Buyers of reprints are advised to check the updated list of rule chapters printed in Pt.0 Ch.1 Sec.1 to ensure that the chapter is current. Main changes Sec.1 General Requirements The survey interval for thermal oil heaters has been increased from 1 to 5 years. Previous items B301 to B309 have been replaced by amended B301 to B305 to upgrade the PMS survey arrangement. Item B502 has been amended and new items B503 to B507 have been added to make the requirements more stringent in obtaining the tailshaft monitoring arrangement, TMON. Item C206 has been added in accordance with IACS UR Z10.1, Z10.2 and Z10.3, concerning a survey planning meeting. Item D101 has been amended regarding attendance at the survey planning meeting. New item D103 has been added in accordance with the requirements in IACS UR Z10.1, Z10.2 and Z10. Previous item D103 has been renumbered D104 and amended in accordance with IACS UR Z10.1, Z10.2 and Z10. A new item D200 concerning examination of ro-ro ships bow, side and stern doors has been added, implementing the amended requirements of IACS UR Z17. New items F100 and F200 have been added in accordance the requirements in IACS UR Z7 and parts of UR Z10.1, Z10.2 and Z10.3, concerning prompt and thorough repairs to damage associated with wastage over the allowable limits. A new item G100 has been added to include surveys for gas turbine maintenance and exchange of components. Sec.2 Survey Extent Main Class Item A104 has been expanded on ships that are transversely framed. Additional text has been added to item B20 Additional text has been added to item B405, in regard to inspections of Ro-Ro ship's bow, side and stern doors. Item B602 has been amended to upgrade the PMS survey arrangement. New items B603 and B604 have been added. A new item B1100 has been added to include maintenance and surveys of gas turbines. In accordance with IACS UR Z7, items C102 and D114 have been amended indicating that consideration may be given to the waiving of internal examinations, for tanks of 12 m 3 or less. Items D103, D104, D114, D117 and Table D1 have been amended and items D106 and D110 have been added. The rest of D100 has been renumbered. A new item E400, concerning renewal surveys for gas turbines, has been added. Items N103 and N204 have been added concerning water jets. Comments to the rules may be sent by e-mail to rules@dnv.com For subscription orders or information about subscription terms, please use distribution@dnv.com Comprehensive information about DNV and the Society's services is found at the Web site http://www.dnv.com Det Norske Veritas Computer Typesetting (FM+SGML) by Det Norske Veritas Printed in Norway by GCS AS. Sec.3 Survey Extent Additional Class. Special Service and Type Notations New items F102 and F103 have been added, concerning close up examination and the option to reduce or extend the survey, depending upon the observed maintenance condition of the hull structures under survey. Item F203 has been expanded to cover examination of piping in cargo holds for ships over 15 years. Items F204 and F205 have been amended, in accordance with the requirements in IACS UR Z10. Z10.2 and Z10.3, concerning the extent of thickness measurements and the examination of hatch covers and coamings. Previous item F205 has been moved to F500. Item F300 and Table F1 has been amended in accordance with IACS UR Z10. Previous item F407 has been revised and moved to F500. Items F405, F406, new items F407 and F410 and F408 (previous 409) have been amended in accordance with IACS UR Z10.2, concerning close up examination and the option to reduce or extend the survey depending upon the observed maintenance condition of the hull structures under survey, and concerning the thorough examination of hatch covers, in regard to testing and thickness measurements. Previous item F413 has been revised and moved to F500. A new item F500 has been added, collecting all requirements concerning additional requirements for single side skin bulk carriers. New items G102 and G103 have been added to include the extent of the close up examination when the original coating in tanks is found to be in GOOD condition. New items G203 and G209 have been added in accordance with the requirements in IACS UR Z10.1, for oil tankers over 15 years of age, concerning the extent of thickness measurements in ballast tanks adjacent to cargo holds with heating coils. Item G406 has been amended in accordance with IACS UR Z10.1 and G408 and G603 have been deleted. Previous G604 to G621 have been renumbered and new G615 and G616 are amended to further clarify the requirement and to include cargo piping on deck and crude oil washing piping. New items K102 and K103 have been added to include the extent of the close up examination when the original coating in tanks is found to be in GOOD condition. Amended item K203, new items K215 and K406, amended items K613 and K614 have been added in accordance with the enhanced requirements in IACS UR Z10.3, concerning the extent of thickness measurements, the examination of ballast tanks adjacent to cargo holds with heating coils, waiver of testing of ballast and cargo tanks at the discretion of the surveyor, in water surveys versus dry docking for ships over 15 years of age. K408 and K603 have been deleted and items have been renumbers accordingly. Sec.4 Survey Extent Additional Class. Special Equipment and Systems Notations A new item G200 has been added to include survey extent for integrated computer systems. Previous G200 has been renumbered G300 and items G301 and G302 have been amended and expanded. A new item J600 has been added to show that Q shall be suffixed to W1 or W1-OC when the qualification assurance system, operational procedures and certificates of competence are examined. New item O100 has been added to include survey requirements for ships with the class notation GAS FUELLED. Corrections and Clarifications In addition to the above stated rule amendments, some detected errors have been corrected, and some clarifications have been made in the existing rule wording. If any person suffers loss or damage which is proved to have been caused by any negligent act or omission of Det Norske Veritas, then Det Norske Veritas shall pay compensation to such person for his proved direct loss or damage. However, the compensation shall not exceed an amount equal to ten times the fee charged for the service in question, provided that the maximum compensation shall never exceed USD 2 million. In this provision "Det Norske Veritas" shall mean the Foundation Det Norske Veritas as well as all its subsidiaries, directors, officers, employees, agents and any other acting on behalf of Det Norske Veritas.

Pt.7 Ch.2 Contents Page 3 CONTENTS SEC. 1 GENERAL REQUIREMENTS... 7 A. Survey Intervals and Conditions...7 A 100 General...7 A 200 Definitions...7 A 300 Annual surveys...7 A 400 Intermediate surveys...11 A 500 Renewal surveys...11 A 600 Other complete periodical surveys...11 A 700 Postponement of periodical surveys...11 B. Alternative Survey Arrangements...11 B 100 Continuous surveys...11 B 200 Surveys by the chief engineer...11 B 300 Survey arrangement based on an approved planned maintenance system (PMS)...12 B 400 Integrated survey programme (ISP) - Hull structures and equipment...13 B 500 Survey arrangement based on condition monitoring system...14 B 600 Surveys of ships out of commission...15 C. Preparation for Survey...15 C 100 Application...15 C 200 Survey programme...15 C 300 Documentation on board...16 D. Procedures for Class Related Services...16 D 100 Thickness measurements hull structures...16 D 200 Examination of ro-ro ships bow, side and stern doors...16 E. Provisions for Hull Surveys...16 E 100 General...16 E 200 Access to structures...17 F. Repair of Structural Damage...17 F 100 Definition...17 F 200 Repairs...17 G. Machinery Surveys...17 G 100 Gas turbine maintenance and exchange of components.17 SEC. 2 SURVEY EXTENT MAIN CLASS... 18 A. Definitions...18 A 100 Definitions...18 B. Annual Survey...18 B 100 Survey extent...18 B 200 Hull structures and equipment...18 B 300 Safety construction...19 B 400 Openings and closing appliances...19 B 500 Load line marks...19 B 600 Machinery and safety systems...19 B 700 Fire protection arrangement...19 B 800 Safety equipment...20 B 900 Pollution prevention, all ships...20 B 1000 Noxious liquid substances, NLS (if applicable)...20 B 1100 Gas turbines...20 C. Intermediate Survey...21 C 100 Application and survey extent...21 C 200 Ships up to 5 years old...21 C 300 Ships more than 5 years of age but not exceeding 10 years...21 C 400 Ships more than 10 years of age...21 C 500 Pollution prevention, all ships...21 C 600 Noxious liquid substances, NLS (if applicable)...21 D. Renewal Survey Hull Structures and Equipment...21 D 100 All vessels...21 D 200 Ships more than 5 years of age (normally for the second renewal survey and later)...23 E. Renewal Survey Machinery and Safety Systems... 23 E 100 General...23 E 200 Electrical installations...23 E 300 Instrumentation and automation...24 E 400 Gas turbines...24 F. Safety Construction... 24 F 100 Renewal survey...24 G. Opening and Closing Appliances, and Load Line Marks... 24 G 100 Renewal survey...24 H. Pollution Prevention, All Ships... 24 H 100 Renewal survey...24 I. Noxious Liquid Substances, NLS... 25 I 100 Renewal survey...25 J. Bottom Survey... 26 J 100 Survey extent...26 J 200 Survey methods and conditions...26 J 300 Survey details...26 K. Tailshaft Survey... 26 K 100 Renewal survey...26 K 200 Intermediate survey...26 K 300 Tailshaft condition monitoring survey arrangement...27 L. Boiler and Steam Heated Steam Generator Survey... 27 L 100 Renewal survey...27 M. Thermal Oil Heater Survey... 27 M 100 Renewal survey...27 N. Thrusters for Propulsion... 27 N 100 Definitions...27 N 200 Extent of survey and testing...27 O. Radio Communication Equipment... 27 O 100 Application...27 O 200 Radio safety, GMDSS, renewal survey...27 P. Safety Equipment, Renewal Survey... 28 P 100 Application...28 P 200 Fire safety, lifesaving and navigation equipment...28 SEC. 3 SURVEY EXTENT ADDITIONAL CLASS. SPECIAL SERVICE AND TYPE NOTATIONS... 29 A. Passenger Ships... 29 A 100 Application...29 A 200 Annual survey...29 A 300 Bottom survey...29 A 400 Lightweight survey...29 B. Container Carriers... 29 B 100 Application...29 B 200 Annual survey...29 C. Car Carriers... 29 C 100 Application...29 C 200 Annual survey...29 D. Movable Car Decks... 29 D 100 Application...29 D 200 Annual survey...29 E. Arrangement for Carriage of Motor Vehicles with Fuel in their Tanks for their own Propulsion... 30 E 100 Application...30 E 200 Annual survey...30

Pt.7 Ch.2 Contents Page 4 F. Dry Bulk Cargo Ships...30 F 100 Application...30 F 200 Annual survey...30 F 300 Intermediate survey...31 F 400 survey...31 F 500 Additional requirements for single side skin bulk carriers...35 G. Oil Carriers...36 G 100 Application...36 G 200 Annual survey (cargo containment)...36 G 300 Annual survey (oil pollution prevention)...37 G 400 Intermediate survey (cargo containment)...37 G 500 Intermediate survey (oil pollution prevention)...37 G 600 survey (cargo containment)...37 G 700 survey (oil pollution prevention)...38 H. Inert Gas Plant...41 H 100 Application...41 H 200 survey...41 I. Protected Slop Tank...41 I 100 Application...41 I 200 survey...41 J. Offshore Bow Loading Arrangements...41 J 100 Application...41 J 200 survey...41 K. Chemical Carriers... 42 K 100 Application...42 K 200 Annual survey (cargo containment)...42 K 300 Annual survey (IMO Chemical Code)...42 K 400 Intermediate survey (cargo containment)...42 K 500 Intermediate survey (IMO Chemical Code)...43 K 600 survey (cargo containment)...43 K 700 survey (IMO Chemical Code)...44 L. Liquefied Gas Carriers... 46 L 100 Application...46 L 200 Annual survey (cargo systems)...46 L 300 Annual survey (IMO Gas Code)...47 L 400 Intermediate survey (cargo systems)...47 L 500 Intermediate survey (IMO Gas Code)...48 L 600 survey (cargo systems)...48 L 700 survey (IMO Gas Code)...49 M.Fire Fighters... 49 M 100 Application...49 M 200 Class notation Fire Fighter I...49 M 300 Class notation Fire Fighter II...49 M 400 Class notation Fire Fighter III...49 N. Well Stimulation Vessels... 49 N 100 Application...49 N 200 Annual survey...49 N 300 survey...50 O. Arrangements for Carriage of Low Flashpoint Liquids. 50 O 100 Application...50 O 200 Annual survey...50 O 300 survey...50 P. Reception System for Recovered Oil...50 P 100 Application...50 P 200 survey...50 Q. Pusher and Pusher/Barge Combinations...50 Q 100 Application...50 Q 200 survey...51 R. Oil Production Vessels...51 R 100 Application...51 R 200 Survey arrangement...51 R 300 Annual survey...51 R 400 survey...51 S. Ships and Plants for Refrigerated Cargoes and Controlled Atmosphere... 51 S 100 Application...51 S 200 Annual survey...52 S 300 survey...52 S 400 Survey in loading port, upon request...53 T. Dangerous Goods... 53 T 100 Application...53 T 200 survey, compulsory requirements..53 U. Ro-Ro Ships... 53 U 100 Application...53 U 200 Annual survey...53 V. Crane Vessels...53 V 100 Application...53 V 200 Annual survey...53 V 300 survey...53 W.Tanker for Potable Water... 53 W 100 Application...53 W 200 survey...53 X. Cable Laying Vessels... 53 X 100 Application...53 X 200 Annual survey...53 X 300 survey...54 SEC. 4 SURVEY EXTENT ADDITIONAL CLASS. SPECIAL EQUIPMENT AND SYSTEMS NOTATIONS... 55 A. Helicopter Deck... 55 A 100 Application...55 A 200 survey...55 B. Shipboard Crane... 55 B 100 Application...55 B 200 Annual survey...55 B 300 survey...55 C. Diving Systems...55 C 100 Application...55 C 200 Annual survey...55 C 300 Intermediate survey...55 C 400 survey...56 D. De-icing or anti-icing Systems...56 D 100 Application...56 D 200 Annual survey...56 E. Periodically Unattended Machinery Space and Machinery Centralized Operated... 56 E 100 Application...56 E 200 Annual survey...56 E 300 survey...56 F. Additional Fire Protection... 56 F 100 Application...56 F 200 All F-class notations...56 F 300 Class notation F-A...57 F 400 Class notation F-M...57 F 500 Class notation F-C...57 F 600 Class notation F-AM...57 F 700 Class notation F...57 G. Integrated Computer Systems...57 G 100 Application...57 G 200 General...57 G 300 survey...57 H. Centralised Cargo Control for Liquid Cargoes...57 H 100 Application...57 H 200 survey...57 I. Dynamic Positioning System...58 I 100 Application...58 I 200 survey...58 J. Nautical Safety...58 J 100 Application...58 J 200 General...58 J 300 Class notation NAUT-C...58 J 400 Class notation W1-OC...58

Pt.7 Ch.2 Contents Page 5 J 500 Class notation W...59 J 600 Class notations W1-Q and W1-OC-Q...59 J 700 Class notation NAUT-B...59 J 800 Class notation NAUT-A...59 K. Hull Monitoring System...59 K 100 Application...59 K 200 General...59 K 300 Annual survey...59 L. Vapour Control Systems...59 L 100 Application...59 L 200 survey...59 M. Redundant Propulsion... 60 M 100 Application...60 M 200 survey...60 N. Clean Ships... 60 N 100 Application...60 N 200 Annual surveys...60 O. Gas Fuelled Engine Installations... 60 O 100 Application...60 O 200 Annual survey...60 O 300 Intermediate survey...60 O 400 survey...61

Pt.7 Ch.2 Contents Page 6

Pt.7 Ch.2 Sec.1 Page 7 SECTION 1 GENERAL REQUIREMENTS A. Survey Intervals and Conditions A 100 General 101 All ships are to be subjected to periodical surveys to ascertain the condition of the structure, machinery installations, equipment and appliances. Periodical surveys will in general belong to one of the following categories: annual surveys intermediate surveys renewal surveys other complete periodical surveys. The extent of surveys for main and additional class notations are given in Sec.2, Sec.3 and Sec.4. The surveys are, as minimum, to be carried out in accordance with the referred rules in order to confirm that the hull, machinery, equipment and appliances comply with applicable requirements, and will remain in satisfactory condition provided the assumptions stated in Pt.1 Ch.1 Sec.1 B400 are adhered to. In cases where compliance with applicable rules can not be satisfactorily confirmed based on extent of surveys as given, more comprehensive examination and/or testing may, upon the surveyor's discretion, be required. 102 In cases where the Administration of a flag state performs surveys of the ship and/or its components and equipment in accordance with the rule requirements, consideration will be given to the acceptance of this control as basis for retention of class. 103 Notwithstanding the general implication of 102, for ships trading with statutory certificates issued by the relevant national authority and where the Society is not authorised to carry out surveys, the Society is upon its own discretion, to carry out a general survey with respect to these certificates, in order to verify compliance with the rules. The extent of this survey will be decided upon in each separate case. 104 In cases where the Administration of the flag state has given dispensation from any requirements in the International Maritime Standards, the Society may upon its own discretion accept their decisions as basis for retention of class. 105 The due date of a periodical survey will be established depending on the survey interval, measured from one of the following events, whichever is relevant: the date of class assignment the date of commissioning the due date of the previous corresponding survey the date of completion of the previous corresponding survey. 106 Surveys and survey intervals related to class notations are given in Table A1 and A2 for main class and additional class respectively. 107 Ships with additional class for which there are no specific survey requirements in this chapter, are to have the equipment and/or constructions related to this additional class examined to the surveyor's satisfaction at every renewal survey for main character of class. A 200 Definitions 201 Convention ship is a ship for which the requirements in the international conventions apply. The conventions covered by these rules are applicable with regard to size and type of ship engaged in international voyages as follows: ICLL For cargo and passenger ships above 24 m. SOLAS: Safety construction, for cargo ships above 500 gross tonnage. Safety equipment, for cargo ships above 500 gross tonnage. Radio communication, for cargo ships above 300 gross tonnage. All passenger ships. MARPOL: Pollution prevention, tanker for oil, for ships above 150 gross tonnage. Pollution prevention for all other ships above 400 gross tonnage. 202 International voyage means a voyage from a country to which the respective international convention applies to a port outside such country, or conversely. 203 Passenger ship is a ship which carries more than 12 passengers. Passenger is every person other than: the master and the members of the crew or other persons employed or engaged in any capacity onboard a ship on the business of that ship a child under one year of age. 204 Cargo ship is any ship which is not a passenger ship. A 300 Annual surveys 301 Annual surveys are normally visual examinations to ascertain the general condition of the ship or relevant item. A more thorough annual survey may be specified for particular structures, machinery installations or equipment due to consequences of failure or age. 302 Annual surveys may unless otherwise stated be carried out within 3 months on either side of the due date. 303 Annual survey is to be carried out concurrently with renewal - or complete periodical surveys. 304 Satisfactory completion of annual surveys for main character of class and for oil tankers, chemical tankers, liquefied gas tankers, dry bulk cargo ships and for ships and plants for refrigerated cargoes, as applicable, will be confirmed by endorsement on the classification certificate. 305 Surveys completed prior to the specified period, i.e. more than 3 months before due date, may be accepted. In such cases the anniversary date on the classification certificate to be advanced to correspond to a date not more than 3 months later than the survey completion date. Subsequent surveys are to be carried out at prescribed intervals using the new anniversary date. Expiry date of the classification certificate may remain unchanged, in which case one or more surveys may be required so that the prescribed survey intervals are not exceeded.

Pt.7 Ch.2 Sec.1 Page 8 Table A1 Periodical Surveys, Main Class. (For survey extent, see Sec.2) Main Survey interval, Survey time windows, see Fig. 1 Remarks character Survey of class years W B (months) W A (months) 1A1 Hull, machinery and equipment, renewal 5 3 See 700 1A2 Hull, machinery and equipment, renewal 3 3 See 700 1A1/1A2 Hull, machinery and equipment, annual 1 3 3 1A1 Hull, machinery and equipment, intermediate 5 See 400 See 400 1A1 Bottom 5 6 6, see however 702 The outside of the ship s bottom and related items are to be surveyed at least on two occasions in any five year period. The interval between two subsequent surveys is not to exceed 36 months. To be carried out concurrently with renewal survey. For passenger ships, see Table A 1A2 1A1/1A2 Bottom Tailshaft with continuous corrosion resistant metallic liner or shaft of corrosion resistant material or shaft with specially approved protection arrangement 1 3 3 5 6 6 Tailshaft with approved oil sealing glands 5 6 6 Tailshaft of non-corrosion resistant material without continuous liner or approved 5 6 6 oil box 1A1/1A2 Thruster for propulsion, intermediate 5 6 6 1A1/1A2 Thruster for propulsion, complete 5 6 6 Main boilers, less than 8 years old 5 6 6 1A1/1A2 Watertube main boilers, more than 8 years old (2 or more boilers for propulsion) 5 6 6 1A1/1A2 Watertube main boilers, more than 8 years old (1 boiler for propulsion) 1 3 3 Smoketube main boilers, more than 8 years old 1 3 3 1A1/1A2 Auxiliary boilers 5 6 6 Steam heated steam generators 5 6 6 1A1/1A2 Thermal oil heaters 5 6 6 For light craft, see separate rules. To be carried out concurrently with renewal survey. May be extended to 10 years provided that an intermediate survey is carried out after 5 years as given in Sec.2 K200 and with satisfactory result. The Society will not require any specific time interval between complete tailshaft syrveys, provided a tailshaft condition monitoring survey arrangement (TMON) has been granted (see B500). Fig. 1 Survey time windows

Pt.7 Ch.2 Sec.1 Page 9 Table A2 Periodical Surveys, Additional Class. (For survey extent, see Sec.3 and Sec.4, Ch.5 and Ch.8) Survey time windows, see Survey Additional class Fig. 1 Survey of interval, Remarks notation years W B (months) W A (months) Dry bulk cargo ships, annual 1 3 3 To be carried out concurrently with Dry bulk cargo ships, the annual, intermediate or renewal Bulk Carrier ESP intermediate 5 See 400 See 400 survey for main class as applicable. Ore Carrier ESP Dry bulk cargo ships, complete The survey also covers requirements 5 3 See 700 periodical to safety construction. Oil Carriers, annual 1 3 3 To be carried out concurrently with Oil Carriers, intermediate 5 See 400 See 400 the annual, intermediate or renewal survey for main class as applicable. Oil Carriers, complete The survey also covers requirements Tanker for Oil ESP 5 3 See 700 periodical to safety construction. Tanker for Oil Products ESP Pollution prevention, annual 1 3 3 Pollution prevention, intermediate 5 6 6 Pollution prevention, complete 5 Tanker for chemicals, annual 1 3 3 To be carried out concurrently with Tanker for chemicals, the annual, intermediate or renewal 5 See 400 See 400 intermediate survey for main class as applicable. The survey also covers requirements Tanker for Tanker for chemicals, complete to safety construction. Chemicals ESP periodical 5 3 See 700 Tanker for C ESP IMO Chemical Code, annual 1 3 3 IMO Chemical Code, intermediate 5 6 6 IMO Chemical Code, complete 5 Tanker for liquefied gas, annual 1 3 3 To be carried out concurrently with Tanker for liquefied gas, the annual, intermediate or renewal intermediate 5 See 400 See 400 survey for main class as applicable. The survey also covers requirements Tanker for Liquefied Tanker for liquefied gas, 5 3 See 700 to safety construction. Gas complete periodical IMO Gas Code, annual 1 3 3 IMO Gas Code, intermediate 5 6 6 IMO Gas Code, complete 5 Tanker for Potable Water Tanker for potable water, complete periodical 5 3 See 700 Oil Production To be carried out concurrently with Oil production vessel, annual 1 3 3 Vessel the annual survey for main class. Oil Production and/ Oil production vessel, complete To be carried out concurrently with or Storage Vessel periodical 5 3 See 700 the renewal survey for main class. Diving system, annual 1 3 3 Diving system, intermediate 5 6 6 DSV Diving system, complete periodical 5 3 3 Cargo refrigerating plant, annual To be carried out concurrently with Reefer, RM, RM 1 3 3 the annual survey for main class. Container, KMC CA Cargo refrigerating plant, complete periodical the renewal survey for main class. To be carried out concurrently with 5 3 See 700 Periodically unattended machinery space, annual 1 3 3 E0, ECO Periodically unattended machinery space, complete 5 3 3 periodical NAUT-C Nautical safety, bridge design 5 6 6 W1-OC Nautical safety, bridge design, W1 NAUT-A instrumentation, manoeuvring, operational procedures NAUT-B 5 6 6 ICS Integrated computer systems 5 6 6 AUTS, AUT, AUTR, AUTRO Dynamic positioning system 5 6 6 F-AMC Additional fire protection 5 6 6 Fire Fighter Fire fighters 5 6 6 INERT Inert gas installation 5 6 6

Pt.7 Ch.2 Sec.1 Page 10 Table A2 Periodical Surveys, Additional Class. (For survey extent, see Sec.3 and Sec.4, Ch.5 and Ch.8) (Continued) Survey time windows, see Survey Additional class Fig. 1 notation Survey of interval, years W B W A (months) (months) Remarks PST Protected slop tank 5 6 6 OILREC Reception system for recovered oil 5 6 6 CRANE, Crane Vessel Shipboard crane, annual 1 3 3 Shipboard crane, complete periodical 5 3 See 700 HELDK Helicopter deck 5 3 See 700 Passenger Ship, Car Ferry A (or B), Train Ferry A (or B) or Car and Train Ferry A (or B) Passenger ships, ferries annual 1 3 3 bottom survey 1 3 3 lightweight survey 5 3 See 700 Car Carrier Car carriers 1 3 3 PET Arrangement for carriage of motor vehicles with fuel in their 1 3 3 tanks MCDK Movable car decks 1 3 3 Container Carrier Container carriers 1 3 3 Well stimulation vessels, Well Stimulation annual 1 3 3 Vessel Well stimulation vessels, complete periodical 5 3 3 Arrangements for carriage of low flashpoint liquids, annual 1 3 3 LFL or LFL* Arrangements for carriage of low flashpoint liquids, complete 5 3 3 periodical Pusher and Pusher/ Pusher and pusher/barge combinations Barge Unit 5 3 See 700 DEICE DEICE/C De-icing or anti-icing systems 1 3 3 CCO Centralised cargo control 5 3 3 BOW LOADING Bow loading arrangement 1 3 3 Position mooring equipment, annual 1 3 3 POSMOOR Position mooring equipment, intermediate 5 6 6 Position mooring equipment, complete periodical 5 3 3 DG-P DG-B Dangerous goods, complete 5 3 See 700 VCS-1 VCS-1B VCS-2 VCS-2B VCS-3 Vapour Control Systems *) 5 *) 5 *) 3 See 700 OPP-F Additional oil pollution prevention measures for fuel oil systems *) 3 See 700 see VCS-1 HMON-1 HMON-2 Hull monitoring system 1 3 See 700 CLEAN CLEAN DESIGN Environment class, annual 1 3 3 To be carried out concurrently with the annual survey for main class. To be carried out concurrently with the renewal survey for main class. At least 2 surveys are to be carried out in dry dock within each 5 year period of the classification certificate, provided there shall never be more than 36 months between two surveys in dry dock. The other surveys may be carried out with the ship afloat. To be carried out concurrently with the annual survey for main class. To be carried out concurrently with the renewal survey for main class. For survey extent, see Offshore Standard DNV-OS-E301 To be carried out concurrently with the renewal survey for main class. *) No specific survey items. Complete periodical survey considered covered by renewal survey for main class. To be carried out concurrently with the annual survey for main class.

Pt.7 Ch.2 Sec.1 Page 11 Table A2 Periodical Surveys, Additional Class. (For survey extent, see Sec.3 and Sec.4, Ch.5 and Ch.8) (Continued) Survey time windows, see Survey Additional class Fig. 1 notation Survey of interval, Remarks years SBM NAUTICUS (Propulsion) W B (months) W A (months) Safety and environmental protection (SEP) management system 5 3 See 700 Propulsion arrangement, annual 1 3 3 Propulsion arrangement, intermediate 5 6 6 Propulsion arrangement, complete periodical 5 3 See 700 See Ch.8 Sec.1 D100 A 400 Intermediate surveys 401 Intermediate surveys are to include visual examinations of hull structures, machinery and electrical installations and equipment in order to ascertain that the vessel remains in compliance with the rules. Tests are specified for particular items due to consequence of failure or age. 402 Intermediate surveys are unless otherwise stated to be carried out at the second or third annual survey after the credited date of the renewal survey. Parts of the intermediate surveys which are additional to the requirements of the annual surveys may be surveyed either at or between the second or third annual survey. 403 Satisfactory completion of intermediate surveys of main character of class and for oil tankers, chemical tankers and liquefied gas tankers, as applicable, will be confirmed by endorsement on the classification certificate. A 500 Renewal surveys 501 Renewal surveys are major surveys of hull structures, machinery installations and equipment. Renewal surveys are to include visual examinations, measurements and tests in order to confirm that the ship complies with the relevant rule requirements and is in satisfactorily maintained condition for the intended service. 502 Renewal surveys for hull, machinery installations and equipment are to be carried out at 5-yearly intervals for ships with main class 1A1 and at 3-yearly intervals for ships with main class 1A 503 The Society may accept that renewal surveys for hull, machinery installations and equipment and complete periodical surveys of cargo containment systems for oil tankers, chemical tankers, liquefied gas tankers, dry bulk cargo ships and plants for refrigerated cargoes are commenced concurrently with the fourth annual survey. For surveys commenced prior to the time range for the fourth annual survey, however, surveys are to be completed not later than 12 months after the commencement. 504 Possible repairs are normally to be carried out before the renewal surveys as given in 501 are regarded as completed and not later than the expiry date of the classification certificate including possible postponement granted as given in 700. The Society may accept that minor deficiencies are rectified within a specified time limit not exceeding 5 months after expiry date of the classification certificate including possible postponement as given in 700. A 600 Other complete periodical surveys 601 Examples of complete periodical surveys are: surveys at 1, 5 or 5 year intervals for additional class notations surveys at 5 year intervals for boilers annual surveys for radio communication surveys at 2 year intervals for safety equipment surveys at 1, 5 and 5 year intervals of safety construction, pollution prevention, noxious liquid substances and chemicals and gas codes surveys at 1 and 5 year intervals for opening and closing appliances and load line marks. A 700 Postponement of periodical surveys 701 Except for annual and intermediate hull surveys, the Society may accept to postpone periodical surveys upon consideration in each separate case. If postponement is granted, a condition of class (CC) will be issued giving the time limit for the postponement period. No postponement will be given for conditions of class related to overdue continuous machinery and/or hull survey items. 702 Upon the owner's written request an extension of the validity of the certificate by maximum 3 months may be granted in exceptional cases. Such request must be received by the Society prior to the expiry date of the classification certificate. B. Alternative Survey Arrangements B 100 Continuous surveys 101 The Society may, upon request from the owners, as an alternative to the renewal surveys, accept continuous surveys on the condition that the items are normally surveyed at intervals not exceeding 5 years for ships with main character of class 1A1 and 3 years for ships with main character of class 1A However, surveys carried out 6 months or less before their due date will be given a correspondingly longer interval during the next cycle. 102 Continuous hull survey may be accepted for passenger ships, container carriers, ro-ro ships and liquefied gas carriers. The applicable ship types may be recognized if an additional class notation as listed below, has been assigned: Passenger Ship Car Ferry Train Ferry Tanker for Liquefied Gas Container Carrier Ro/Ro 103 Continuous machinery surveys may be accepted for all vessels with main character of class 1A1 or 1A B 200 Surveys by the chief engineer 201 The Society may, upon request from the owners, accept that continuous machinery surveys, subject to the provisions of 202 to 205, may be carried out by the person in charge of the machinery department (chief engineer). The conditions for granting this type of survey arrangement will normally be:

Pt.7 Ch.2 Sec.1 Page 12 the owner (or managing owner) must confirm the required qualifications of the chief engineer the person has sailed a minimum of 3 years as chief engineer with the relevant national certificate, or alternatively the person is presently sailing as a chief engineer with the relevant national certificate and has been employed with the owner (or managing owner) for at least 3 years. Chief engineers previously approved by the Society need not fulfil the latter requirement. Upon acceptance, a chief engineer authorisation letter will be issued by the Society. On request, the authorisation letter is to be presented to surveyors of the Society. 202 All surveys taking place at ports where the Society is represented are to be carried out by surveyors of the Society. 203 Half of all items covered by the continuous machinery survey scheme, of which there are more than one, may be surveyed by the chief engineer (i.e. the chief engineer may survey half of all identical items in one five-year survey cycle). Auxiliary diesel engines and turbines may wholly be surveyed by the chief engineer. Only a test run including testing of safety functions in the presence of the surveyor will normally be required. 204 It is a condition that all surveys carried out under supervision of the chief engineer are recorded in the engine log book and relevant extracts given to the first attending surveyor. The surveyor may, if he finds it necessary, require a resurvey of the parts in question. 205 Generator parallel operation, generator load test, and testing of protection devices for generators and switchboards are to be witnessed by a surveyor. See also Sec.2 E204. B 300 Survey arrangement based on an approved planned maintenance system (PMS) 301 A survey arrangement based on a planned maintenance system (PMS) is an alternative to the continuous machinery survey (CMS). Such survey arrangement is operated under the following conditions: 1) The planned maintenance system is to be computer based. Guidance note: If the system is centrally operated with the computer ashore, this can be accepted provided that implementation survey and annual survey are carried out both at the location from where the system is operated, and onboard. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 2) The ship is to be manned by chief engineers who are familiar with the system. A chief engineer approved by the Society shall be onboard at least 50% of the time. Requirements for approval of chief engineers are given in 20 3) The planned maintenance system shall be approved (see 302). 4) The manager or operator shall have established a planned maintenance system that includes at least all items and systems that are covered by the continuous machinery survey (CMS) scheme. 5) Maintenance job descriptions and intervals are to be based on manufacturer s recommendations. Experience may show that intervals need to be adjusted, in these cases documentation is required if intervals are to be extended. 6) All components in the CMS scheme are to be clearly identified with the CMS code in the system. 7) The system shall be able to produce a maintenance history report of all main overhauls carried out for a specific time period, see 30 8) Tthe maintenance may be based on calendar or running hours, or based on monitoring of condition and performance. 9) The job descriptions for the main overhaul for all the components in the ship s CMS scheme are to cover the requirements for class survey, (see Sec.2, Table E1) and will be credited as a class survey each time these jobs are carried out. If some main overhaul intervals are based on running hours and these intervals normally will exceed 5 years, the items will still be credited after 5 years based on satisfactory documentation of regular maintenance records and tests. 10) A system for control of components that are being re-used in different positions (circulating components, e.g. piston, cylinder cover) is to be established for all such components in the CMS scheme. Guidance note: It is not required that this system shall necessarily be an integrated part of the planned maintenance system. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 11) The CMS items for sea valves and sanitary valves cannot be credited by the chief engineer, but shall always be surveyed by a surveyor. The CMS items for parallel operation, testing of the generators and testing of setting for main and emergency generators protection devices and circuit breaker shall always be carried out in presence of a surveyor. These requirements are to be stated in the instructions in the planned maintenance system. 12) All corrective actions are to be especially identified in the system. 13) The job descriptions and maintenance history are to be in English. 14) Backup routines are to be established. 15) Annual survey is to be carried out in order to prolong the validity of the survey arrangement. 16) Damage to machinery or equipment covered by classification shall always be reported to the Society and into the planned maintenance system as a corrective action. The corresponding repair shall always be verified by a surveyor. 17) In case of change of manager or operator, the survey arrangement is automatically cancelled. The survey arrangement may also include the instrumentation and automation equipment covered by the rules in Pt.6 Ch.3 for the class notations E0 or ECO. All jobs related to the notations E0 or ECO have then to be included in the system, clearly identified, with proper test routines and maintenance descriptions. If these conditions are not complied with and the deficiency is not rectified within a given time, the survey arrangement will be cancelled. The conditions for ordinary continuous survey arrangement (CMS) of machinery will be re-introduced and all CMS items will be given a due date 5 years from the last survey date. 302 Before a ship may be accepted for alternative survey under a PMS arrangement, the system must be based on an approved PMS program. This program may be type approved or approved on a case-by-case basis. Requirements for type approval are described in a type approval programme in Standard for Certification 9 and in Certification Note Guidance note: The supplier of the planned maintenance system can obtain type approval while the system approval can be obtained by the manager or operator, see 304. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e---

Pt.7 Ch.2 Sec.1 Page 13 303 The system approval of the planned maintenance system is based on a description of the system and the following documentation: 1) List of items or systems that are included in the PMS with the corresponding CMS codes. 2) Examples of maintenance descriptions with corresponding time intervals and identification of class related components (CMS code). 3) Job descriptions for the CMS items for sea valves and sanitary valves and for parallel operation, testing of the generators and testing of setting for main and emergency generators protection devices and circuit breaker. See 30 4) Example of maintenance history report (class report) for crediting of CMS components. The report shall at least contain component name, CMS code, interval, carried out date (running hours if applicable) and job history. 5) Procedures for reporting of maintenance activity (access control in the system, which are reporting history into the system etc.). 6) Description of the functionality for handling of postponed or overdue jobs. 7) Description of the system for control of components that are being re-used in different positions (circulating components, e.g. piston, cylinder cover). 8) A description of the manager's or operator's maintenance strategy including a chart of responsibility for the ship and the management. 9) Description of routines for continuous improvement of the maintenance strategy and intervals on critical components. Identification and follow-up of unplanned maintenance, recording of condition before maintenance is carried out, and recording of all changes in system are important elements in this context. Guidance note: Maintenance strategy is the manager's or operator's description of how the different machinery items are maintained, that could be time based maintenance, condition monitoring and corrective maintenance. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- When the owner is granted a system approval of their system, a system approval certificate will be issued to the owner stating the system type. A copy of this certificate shall be onboard every ship that intends to apply for the PMS arrangement. 304 A system approval or a type approval is an approval of the system itself and it s functionality, and not an approval of how it is implemented on board each ship. The owner may use the approved system on board all the ship in his fleet, but an implementation survey is to be carried out on each ship before the PMS survey arrangement is granted. For type approved systems, the documentation in items 1, 2, 7 and 8 in 303 are to be submitted before the implementation survey is carried out. 305 An implementation survey on board the ship is required in order to verify that all the conditions listed in 301 are complied with. Provided that the implementation survey is carried out with a satisfactory result, a certificate for the survey arrangement will be issued for the ship stating system type and conditions for the survey arrangement. B 400 Integrated survey programme (ISP) - Hull structures and equipment 401 The rules in 400 represent an alternative survey scheme. This scheme allows the owner's shipboard and shore side personnel, as given in 403, to partly conduct inspections and tests as described in 404. The inspections and tests shall be verified by the Society at regular intervals. 402 The requirements given in 403 to 416 replace requirements given for traditional periodical and continuous hull surveys carried out by the Society with an integrated survey program (ISP) which describes specific obligations for the owner and the Society based on the ship's arrangement, installed equipment and systems as well as implemented planned inspection and maintenance system (PIMS). Guidance note: For ships with class notation NAUTICUS assigned (see Ch.7) a degree of exchange between the owner and the Society of information stored in the product model is defined. 3-D graphical model is part of the product model and consists of a three dimensional view of the hull structure and associated features. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 403 ISP is applicable for ships exclusively intended for the carriage of containers, normally with the class notation Container Carrier. The rules apply to ships with operational patterns which allow a planned and controlled implementation of the program and application of the ISP will be restricted to ships above a certain size, normally with a cargo carrying capacity of not less than 1 000 TEU. It is a prerequisite that the ship has a valid safety management certificate (SMC) in accordance with the ISM Code. 404 ISP covers inspections of hull structures and equipment to the extent subject to class surveys as given in Sec.2 C and D and supporting fittings, structures and equipment for stowing and securing of containers as given in Sec.3 B. Guidance note: Inspection in this context means visual examination and or pressure test. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 405 Intervals for planned inspections and maintenance should be decided based on the owner's documented experience and/or designers, builders and manufacturers recommendations. Intervals for examination of hull structures and equipment covered by ISP, according to 404 are, however, supposed to be shorter than intervals given for periodical surveys in A400 and A500, applicable for intermediate and renewal surveys, respectively. 406 Upon request from the owner, an enrolment letter for ISP will be issued when documents listed in a) to d) have been submitted by the owner and reviewed by the Society and the initial survey as given in 411 has been successfully carried out: a) Information related to conditions given in 40 b) PIMS. c) An organisation chart with defined responsibilities, authorities and interrelations of all personnel who manage, perform and verify work in accordance with ISP. d) Qualification and competency of personnel to perform their assigned functions under the ISP. Guidance note: It is assumed that the master's responsibility and authority as defined in the ISM Code paragraph 5 are maintained with the ISP. The owner should have a plan on how to provide personnel involved in the ISP with adequate understanding of relevant rules and reporting principles, basic knowledge of structural arrangement and hull integrity with respect to design, strength and maintenance. This may include establishment and maintenance of procedures for identifying any training, which may be required in support of the ISP and to ensure that such training is provided. In order not to impose a redundant burden, ISM Code documents sufficiently detailed may be suitable also for use in the ISP and

Pt.7 Ch.2 Sec.1 Page 14 owner may submit copies of documents of the safety management components that meet requirements for the ISP. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 407 The following examinations and tests are to be carried out under the supervision of a surveyor: a) Thickness measurement of hull structures as given in Sec.2 C and D. Holds or tanks or spaces required to be entered for thickness measurement are to be internally examined. b) Examination of underwater parts in connection with periodical bottom survey. In connection with dry-docking, holds, tanks and spaces are to be internally examined to an extent decided by the Society in order to verify structural condition and level of maintenance as reported as part of the PIMS and shall comprise representative holds, tanks and spaces as applicable. c) Annual examination of ballast tanks required as a consequence of non-effective corrosion protection system. d) Annual examination and thickness measurement of suspect areas as defined in Sec.2 A. 408 The PIMS shall, as a minimum, include a description of the following: identification of all items included inspection and maintenance intervals inspection and maintenance methods and procedures to be followed inspection and maintenance reporting procedures procedure for corrective actions following reported deficiencies. Guidance note: The inspection of hull structures should include plating, frames, beams, stiffeners and girders including end connections and welds of all internal members and boundaries for holds, tanks and spaces including hatch covers and coamings as applicable. Evaluation of the condition of corrosion protection system in ballast tanks and other holds and spaces as applicable should be included. Piping systems located outside machinery spaces including valves and fittings should be included. Importance of provisions for inspection with particular attention to cleanliness and access to structures in order to discover significant corrosion, deformation, fractures or other structural deterioration should be incorporated. Guidelines for assessment of acceptance level of deterioration on hull structures and equipment as applicable and evaluation of protective coating condition will be given as part of the ISP. Reporting forms should, as a principle, give information on: extent of inspection and maintenance with identification of spaces and specification of structural elements, equipment, pipes, fittings etc. as applicable within each space being inspected results of inspection with condition of coating and anodes (if applicable), structural condition with identification of findings as corrosion and defects like cracks, buckling and indents and actions to possible findings including maintenance work. Sketches and photos should generally supplement reports. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 409 The PIMS is to include records applicable to inspections, maintenance, damages, defects and carried out corrective actions. These are to be kept as objective evidence of the condition of hull structures and equipment and the effective functioning of the PIMS. The records are to be readily accessible to the attending surveyor. Guidance note: In order to provide flexibility in the method of documentation, any appropriate record keeping system may be incorporated in the PIMS including computer-based system. In order to assist the surveyor to conduct the requisite annual surveys as given in 412 without difficulty, suitable cross-referencing may be required. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 410 The implementation of ISP requires that descriptive data related to the structural condition and level of maintenance for items included are established. Guidance note: Relevant data may be obtained based on results from periodical surveys and/or condition survey and further supported with information available from classification records. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 411 After satisfactory review of documentation listed in 406 and after the PIMS has been in operation onboard for a specific time of normally not less than 6 months, an initial survey is to be carried out to confirm that the ISP is operating as intended. Guidance note: During the initial operational period, the Society will evaluate the ability of ship operating personnel to perform their assigned functions. ---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e--- 412 Surveys for verification of the functioning of ISP are required annually as given in Sec.2 B206 and Sec.3 B20 413 If service experience shows wear and tear or defects that cannot be considered as normal, this shall be reported to the Society. In such cases the owner shall initiate, in co-operation with the Society, a special investigation to identify the cause(s). The Society may require the inspection and maintenance interval shortened until suitable corrective actions have been implemented. 414 If the hull structure and or equipment covered by the ISP sustain damage to such an extent that it may be presumed to lead to a condition of class (see Pt.1 Ch.1 Sec.3 B), the Society is to be informed without delay. The ship is to be surveyed in the first port of call or according to further instructions from the Society. 415 Should it be evident that the conditions for the ISP enrolment or the effective functioning of ISP as basis for retention of class are not complied with, the ISP enrolment will be cancelled and conditions for ordinary periodical or continuous survey schemes will be introduced. 416 If the owner and or operator of the ship is changed, the ISP enrolment will be automatically cancelled. B 500 Survey arrangement based on condition monitoring system 501 For machinery equipped with instruments making it possible to ascertain the condition of the machinery components, special approval may be made as to the extent and method of the survey. 502 For oil lubricated tailshafts that are monitored to ascertain the condition of the tailshaft system during operation, and that fulfils the design requirements in Pt.4 Ch.4 Sec.1 E300, the Society will not require any specific time interval between complete tailshaft surveys. See also Classification Note 10. A tailshaft condition monitoring survey arrangement (TMON) will be granted in such cases. The arrangement is applicable to conventional, podded and thruster propulsion systems. Other arrangements will be subject to special consideration. Guidance note: For ships granted TMON prior to 1 July 2001, a survey interval of 15 years between complete tailshaft survey still applies. Ships granted TMON prior to 1 July 2001 may also be granted an unlimited survey interval with respect to tailshaft survey if the de-