RULES FOR CLASSIFICATION OF SEA-GOING STEEL SHIPS

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1 CHINA CLASSIFICATION SOCIETY RULES FOR CLASSIFICATION OF SEA-GOING STEEL SHIPS AMENDMENTS (Jan. 2015) Effective date: 1 January, 2015 Beijing 1/1

2 CONTENTS PART ONE PROVISIONS OF CLASSIFICATION... 4 CHAPTER 2 SCOPE AND CONDITIONS OF CLASSIFICATION... 4 Section 7 STATUTORY SERVICES... 4 Section 9 ASSIGNMENT, MAINTENANCE, SUSPENSION, CANCELLATION AND REINSTATEMENT OF CLASS... 4 Appendix 1 LIST OF CLASS NOTATIONS FOR SEA GOING SHIPS... 4 CHAPTER 4 SURVEYS DURING CONSTRUCTION Appendix 1 HULL SURVEY FOR NEW CONSTRUCTION CHAPTER 5 SURVEYS AFTER CONSTRUCTION Appendix 16 GUIDELINES FOR SURVEY OF PLANNED MAINTENANCE SCHEME (PMS)FOR MACHINERY PART TWO HULL CHAPTER 1 GENERAL Section 12 STRUCTURAL ARRANGEMENT CHAPTER 2 HULL STRUCTURES Section 12 WATERTIGHT BULKHEADS Section 13 DEEP TANKS CHAPTER 3 EQUIPMENT AND OUTFITS Section 6 SHIPBOARD FITTINGS AND SUPPORTING HULL STRUCTURES ASSOCIATED WITH TOWING AND MOORING ON CONVENTIONAL VESSELS CHAPTER 4 STRENGTHENING FOR NAVIGATION IN ICE Section 2 ICE STRENGTHENING FOR CLASSES B1*, B1, B2 AND B CHAPTER 8 BULK CARRIERS Section 8 OVERALL LONGITUDINAL STRENGTH IN FLOODED CONDITION Section 9 STRENGTH OF CORRUGATED TRANSVERSE WATERTIGHT BULKHEADS IN HOLD FLOODED CONDITIONS Section 10 ALLOWABLE HOLD LOADING CONSIDERING HOLD FLOODING CHAPTER 10 TUGS Section 5 TOWING ARRANGEMENTS AND SUPPORTING STRUCTURE PART THREE MACHINERY INSTALLATIONS CHAPTER 11 SHAFTING AND PROPELLERS Section 2 SHAFTING CHAPTER 12 SHAFT VIBRATION AND ALIGNMENT Section 2 TORSIONAL VIBRATION CHAPTER 13 STEERING GEAR AND WINDLASSES Section 1 STEERING GEAR CHAPTER 14 STRENGTHENING FOR NAVIGATION IN ICE Section 1 GENERAL PROVISIONS PART FOUR ELECTRICAL INSTALLATIONS CHAPTER 2 ELECTRICAL INSTALLATIONS IN SHIPS Section 9 SAFETY SYSTEMS FOR SHIPS AND PERSONS ONBOARD Section 19 ADDITIONAL REQUIREMENTS FOR BULK CARRIERS /2

3 PART FIVE REFRIGERATED CARGO INSTALLATIONS CHAPTER 1 GENERAL Section 1 GENERAL PROVISIONS PART SIX FIRE PROTECTION, DETECTION AND EXTINCTION CHAPTER 3 FIRE SAFETY MEASURES Section 4 MISCELLANEOUS PART EIGHT ADDITIONAL REQUIREMENTS CHAPTER 10 ADDITIONAL REQUIREMENTS FOR PETROLEUM ASPHALT CARRIERS Section 2 CONSTRUCTION AND ARRANGEMENT OF SHIP CHAPTER 13 ADDITIONAL REQUIREMENTS FOR POLAR CLASS SHIPS Section 2 STRUCTURAL REQUIREMENTS PART NINE DOUBLE-HULL OIL TANKERS STRUCTURE(CSR) SECTION 10 BUCKLING AND ULTIMATE STRENGTH /3

4 PART ONE PROVISIONS OF CLASSIFICATION CHAPTER 2 SCOPE AND CONDITIONS OF CLASSIFICATION Section 4 APPLICATION AND FEES The existing paragraph is replaced by the following: The responsibilities of both parties, characters of classification and class notations, particulars of the ship, etc., are to be clearly specified in the application or contract/agreement. Submitting the application or signing the contract/agreement means that the applicant will have no objection that the representative(s) of third-party independent audit organizations, e.g. representative(s) of an Accredited Certification Body (ACB), IACS observer(s), etc., and the representative(s) of the European Commission (EC) may visit onboard or a manufacturer or a shipyard to carry out an audit or an assessment as provided in Article 8(1) of Regulation (EC) No. 391/2009, and will facilitate such audit/assessment. Section 7 STATUTORY SERVICES The existing paragraph is replaced by the following: For authorized statutory service, the statutory requirements for convention ships are to include those contained in the Guidelines for Implementation of Statutory Surveys for Ships Engaged on International Voyages 1, unless provided with written instruction to apply a different interpretation with regard to the conventions referred to in by the flag Administration. Section 9 ASSIGNMENT, MAINTENANCE, SUSPENSION, CANCELLATION AND REINSTATEMENT OF CLASS A new subparagraph (4)4 is added as follows: 4 when it is confirmed that the Surveyor has boarded the ship before the survey is due, but the ship is put into service before the satisfactory completion of the corresponding overdue survey. Section 12 AUDIT The existing Section 12 is deleted, and Sections 13 & 14 are renumbered as Sections 12 & 13 respectively. Appendix 1 LIST OF CLASS NOTATIONS FOR SEA-GOING SHIPS The class notations of General Dry Cargo Ship, General Dry Cargo Ship, Double Side Skin, Semi-Submersible Vessel and Liquefied Gas Carrier in Table A are amended as follows: Technical Class notation Description requirements to be complied with General Dry Cargo Ship General dry cargo ship Ships intended primarily to carry dry cargo, and also liquid cargo contained in vessels, other than Ch. 2, Pt. 2 of the Rules 1 Guidelines for Implementation of Statutory Surveys for Ships Engaged on International Voyages are available on CCS website: http//: 4/4

5 General Dry Cargo Ship, Double Side Skin Semi-Submersible Vessel Liquefied Gas Carrier General dry cargo ships of double side skin construction Semi-submersible vessel Liquefied Gas Carrier bulk carriers, container ships, ro-ro cargo ships, refrigerated cargo ships, cement carriers, livestock carriers, forest product carriers and wood chip carriers, deck cargo ships, general dry cargo ships of double side skin construction, with double side skin extending for the entire length of the cargo area and for the entire height of the cargo hold to the upper deck. Assignment of this notation is subject to compliance with survey requirements in Sec. 5, Ch. 5, PART ONE of the Rules Ships of double side skin construction, with double side skin extending for the entire length of the cargo area, and for the entire height of the cargo hold to the upper deck, intended primarily to carry dry cargo, and also liquid cargo contained in vessels. Assignment of this notation is subject to compliance with survey requirements in Sec. 4, Ch. 5, PART ONE of the Rules Ships capable of being semi-submersible when needed during loading and unloading or operation Ships provided with cargo containment system, dedicated to carry liquefied gases or other cargoes as listed in IGC Code. Liquefied gas carriers constructed on or after 1 July 1986 and complying with IGC Code are to be assigned the following notations respectively, depending on the preventive measures to preclude the escape of cargo: 1Type 1G: Maximum preventive measures are required to preclude the escape of cargo; 2Type 2G: Significant preventive measures are required to preclude the escape of cargo; Type 2PG: For gas carriers of 150 m in length or less, significant preventive measures are required to preclude the escape of cargo, and the products are carried in type C independent tanks designed for a MARVS of at least 0.7 MPa gauge and a cargo containment system design temperature of -55 or above; 3 Type 3G: Moderate preventive measures are required to preclude the escape of cargo. Liquefied gas carriers constructed before 1 July 1986 and complying with GC Code are to be assigned the notations of Type IG/Type IIG/Type IIPG/Type IIIG respectively instead of Type 1G/ Type 2G/ Type 2PG/ Type 3G. The following notations are to be assigned respectively, depending on the type of cargo containment systems: Type A Independent Tank Type B Independent Tank Type C Independent Tank Integral Tank Membrane Tank Semi-membrane Tank Internal insulation Tank Ch. 2 and applicable sections of other chapters, Pt. 2 of the Rules Ch. 15, Pt. 2 of the Rules Rules for Construction and Equipment of Ships Carrying Liquefied Gases in Bulk The class notation ofn and Equipment of Ships Carrying Liquefied Ga Class Description notation PSPC Protective coating Ships of which specific spaces comply with IMO Performance Standard for Protective Coatings may be assigned this notation, with one or more of suffixes B, C, D and V being added thereafter. Meanings of the suffixes are as follows: Technical requirements to be complied with PSPC(B) and PSPC(D) are to comply with the requirements of IMO MSC.215(82); PSPC(C) is to comply 5/5

6 B: protective coatings applied in dedicated seawater ballast tanks of all types of ships; C: protective coatings applied in cargo oil tank spaces of crude oil tankers; D: protective coatings applied in double-side skin spaces; V: protective coatings applied in void spaces of bulk carriers and oil tankers. Note: B, C, D and V can operate both separately and together with the requirements of IMO MSC.288(87); PSPC(V) is to comply with the requirements of IMO MSC.244(83) The class notations ofith the requirements of IMO MSC.244(83); the following: Class notation FTP BWMP Fuel oil tank protection Ballast water management plan Description This notation may be assigned to ships with oil fuel tanks protected by double hull or equivalent means of protection This notation may be assigned to ships implementing approved ballast water management plan on board Technical requirements to be complied with Sec. 3, Ch. 8, Pt. 8 of the Rules Guidelines for Development of Ship s Ballast Water Management Plan, 2006 CHAPTER 4 SURVEYS DURING CONSTRUCTION The following amendments to this Appendix will be implemented from 1 July 2016: Appendix 1 HULL SURVEY FOR NEW CONSTRUCTION 1. Scope In addition to the above, for tankers and bulk carriers subject to SOLAS Reg. II-1/3-10 (Goal-based ship construction standards for bulk carriers and oil tankers) (hereinafter referred to as GBS ships ), see also Annex 2 to this Appendix. 2. Definitions For the purpose of this Appendix, the relevant terms are defined as follows: (3) Survey methods: survey methods which the Surveyor is directly involved in are patrol, review, witness, defined respectively as follows: 1 Patrol: the act of checking on an independent and unscheduled basis that the applicable processes, activities and associated documentation of the shipbuilding functions identified in Table 1 continue to conform with classification and statutory requirements; 2 Review: the act of examining documents in order to determine traceability, identification and to confirm that processes continue to conform with classification and statutory requirement; 3 Witness: the attendance at scheduled inspections in accordance with the agreed Inspection and Test Plans or equivalent to the extent necessary to the extent necessary to check compliance with the survey requirements. 7. Newbuilding survey planning 7.1 Prior to commencement of surveys for any newbuilding project, CCS is to discuss with the 1 Terminology for hull terms and hull survey terms can be found in IACS Recommendation No.82. 6/6

7 No. 7.1 Shipbuilding function Application of protective coatings for dedicated seawater ballast tanks in all types of ships and double-side skin spaces of bulk carriers subject to PSPC shipbuilder at a kickoff meeting the items listed in Table 1. The purpose of the meeting is to agree how the list of specific activities shown in Table 1 is to be addressed. If a surveyor has been nominated for a specific newbuilding project, then the surveyor is to attend the kickoff meeting. The meeting is to: (1) take into account the shipbuildersdersdersnd the kickoff meeting. The meeti(2) include the list of proposed subcontractors; (3) the builder is to agree to: 1 undertake ad hoc investigations during construction as may be requested by CCS where areas of concern arise and keep CCS advised of the progress of any investigation; 2 whenever an investigation is undertaken, in principle, suspend relevant construction activities if warranted by the severity of the problem; (4) make a record of the meeting. 7.3 The shipyard is to advise CCS of any changes to the activities agreed at the kickoff meeting and these are to be documented in the survey plan, e.g.: (1) if the shipbuilder chooses to use or change sub-contractors, or; (2) if the shipbuilder chooses to incorporate any modifications necessitated by changes in production or inspection methods, rules and regulations, structural modifications, or; (3) in the event where increased inspection requirements are deemed necessary as a result of a substantial nonconformance or otherwise. 7.6 In the event of series ship 1 production, consideration may be given by CCS to waiving the requirement for a kickoff meeting for the second and subsequent ships provided any changes are documented as required in paragraph 7.1 the requirement for a kickoff meeting in paragraph 7.1 may be waived for the second and subsequent ships provided that no changes to the specific activities agreed in the kickoff meeting for the first ship are introduced. If any changes are introduced, these are to be agreed in a new dedicated meeting and documented in a record of such meeting. Survey requirements for classification Monitor implementation of the coating inspection requirements Survey method required for classification Patrolling and review Items for Hull Survey Table 1 Documentation Statutory available to Ship requirements Surveyor construction and relevant during file reference construction Rules and IACS 1 requirements UI SC223 Reg. II-1/3-2 of SOLAS as amended Coating standard Signed and Verified Tripartite Agreement Coating Technical File Specific activities Verify that applied coatings are approved and review records of application in accordance with Chapter 7 of Annex to MSC.215(82) Proposals for the project 1 For description of a series of ships, see (2) of Chapter 2 of this PART. Series Ship Production: vessels in the series subsequent to the first one (prototype), i.e. sister ships built in the same shipyard. 7/7

8 CHAPTER 5 SURVEYS AFTER CONSTRUCTION Appendix 16 GUIDELINES FOR SURVEY OF PLANNED MAINTENANCE SCHEME (PMS)FOR MACHINERY The existing paragraph is replaced by the following: Implementation survey means the first confirmatory survey of PMS for the ship which applies for survey of PMS within one year of its trial. The existing paragraph is replaced by the following: For the ship which is assigned the class notation PMS for the first time, a class memorandum is to be given that the Implementation Survey shall be carried out by CCS surveyor within one year from the date of approval. The existing paragraph is replaced by the following: For the ship which begins to carry out the PMS, trial is to be made for not exceeding one year. After the trial is finished, the owner is to apply to CCS for an implementation survey and submit an implementation report of trial at the same time. The existing paragraph is replaced by the following: Where the special class survey is due and cannot be completed due to other reasons, the owner or ship management company may apply for extension. Where found satisfactory 1, an extension not exceeding 3 months may be granted for the special class survey and PMS annual audit. Such survey and audit are to be carried out in accordance with the requirements of to by the end of the extension. 1 Before the extension of PMS annual audit is granted, the Surveyor is to re-check the outstanding recommendations/conditions of class, confirm PMS items in so far as practicable and at the same time confirm that the remaining PMS items do not affect the safety of the ship. 8/8

9 PART TWO HULL CHAPTER 1 GENERAL Section 12 STRUCTURAL ARRANGEMENT The existing paragraph is replaced by the following: In addition to the requirements of paragraph of this Section, the oil fuel tank protection by means of cofferdams in ships is to comply with Regulation 12A of Annex I to MARPOL 73/78. The existing paragraph is replaced by the following: Fuel oil tanks are to be arranged in accordance with the requirements for protection of fuel oil tanks in Regulation 12A of Annex I to MARPOL 73/78. CHAPTER 2 HULL STRUCTURES Section 12 WATERTIGHT BULKHEADS In paragraph , the words the web thickness of girders is not to be less than that of the bulkhead plating in way of girders, are deleted. Section 13 DEEP TANKS A new paragraph is added as follows: For ballast tanks with ballast water exchange by overflow method, the design pressure head h is, in addition to complying with the requirements of this Section, not to be less than the vertical distance from the calculation point to the overflow point. In paragraph , the words the web thickness of girders is not to be less than that of the bulkhead plating in way of girders are deleted. CHAPTER 3 EQUIPMENT AND OUTFITS Section 6 SHIPBOARD FITTINGS AND SUPPORTING HULL STRUCTURES ASSOCIATED WITH TOWING AND MOORING ON CONVENTIONAL VESSELS The existing paragraph is replaced by the following: The selection of shipboard fittings is to be made by the shipyard in accordance with an Industry standard (e.g. ISO Ships and marine technology Ship s mooring and towing fittings Welded steel bollards for sea-going vessels) accepted by CCS. When the shipboard fitting is not selected from an accepted Industry standard, the design load used to assess its strength and its attachment to the ship is to be in accordance with /9

10 The existing paragraph is replaced by the following: The selection of shipboard fittings is to be made by the shipyard in accordance with an Industry standard (e.g. ISO Ships and marine technology Ship s mooring and towing fittings Welded steel bollards for sea-going vessels) accepted by CCS. When the shipboard fitting is not selected from an accepted Industry standard, the design load used to assess its strength and its attachment to the ship is to be in accordance with of this Section. CHAPTER 4 STRENGTHENING FOR NAVIGATION IN ICE Section 2 ICE STRENGTHENING FOR CLASSES B1*, B1, B2 AND B3 The existing paragraph is replaced by the following: Restrictions on draughts when operating in ice are to be documented and kept on board readily available to the master. The maximum and minimum ice class draughts fore, amidships and aft are to be indicated in the class certificate, loading manual and shell plating expansion. CHAPTER 8 BULK CARRIERS Section 8 OVERALL LONGITUDINAL STRENGTH IN FLOODED CONDITION General requirements This Section applies to bulk carriers of 150 m and over in length, with harmonized notation BC A or BC B. intending to carry solid bulk cargoes having a density of 1.0 t/m 3 or above, and with, (1) Single side skin construction, or (2) Double side skin construction in which any part of longitudinal bulkhead is located within B/5 or 11.5 m, whichever is less, inboard from the ship s side at right angle to the centreline at the assigned summer load line. Section 9 STRENGTH OF CORRUGATED TRANSVERSE WATERTIGHT BULKHEADS IN HOLD-FLOODED CONDITIONS General requirements This Section applies to bulk carriers of 150 m in length and above, and of single side or double side skin construction, intending to carry solid bulk cargoes having a density of 1.0 t/m 3 or above, and with, a) Single side skin construction, or b) Double side skin construction in which any part of longitudinal bulkhead is located within B/5 or 11.5 m, whichever is less, inboard from the ship s side at right angle to the centreline at the assigned summer load line. Section 10 ALLOWABLE HOLD LOADING CONSIDERING HOLD FLOODING General requirements 10/10

11 This Section applies to bulk carriers of 150 m in length and above, and of single side or double side skin construction, intending to carry solid bulk cargoes having a density of 1.0 t/m 3 or above, and with, (1) Single side skin construction, or (2) Double side skin construction in which any part of longitudinal bulkhead is located within B/5 or 11.5 m, whichever is less, inboard from the ship s side at right angle to the centreline at the assigned summer load line. CHAPTER 10 TUGS Section 5 TOWING ARRANGEMENTS AND SUPPORTING STRUCTURE The existing paragraph is replaced by the following: Towing hooks or towing winches are to be designed according to the breaking strength of the towline. The breaking strength of the hook is generally to be 1.5 times the minimum breaking load of the towline required by the Rules or in accordance with other equivalent means. 11/11

12 PART THREE MACHINERY INSTALLATIONS CHAPTER 11 SHAFTING AND PROPELLERS Section 2 SHAFTING The amendments to Table (Factor C for different design features) of this Section apply to ships contracted for construction on or after 1 July Integral coupling flange Factor C for different design features Table Intermediate shafts with Thrust shafts external to engines Propeller shafts Keyless couplings fitted by oil shrink method keyway Radial hole Longitudinal slot The portion of thrust shafts outside the thrust collar at a length equal to the thrust shaft diameter, the remainder may be tapered down to the diameter required for the intermediate shaft In way of axial bearings where roller bearing is used as thrust bearing Flange mounted or keyless taper fitted propeller shafts Key fitted propeller shafts The portion of the screwshaft and tube shaft forward of the length of screwshaft required by till it reaches the aft peak bulkhead Notes: 1 The fillet radius at the base of the flange is not to be less than 0.08d. 2 For over a length of at least 0.2d of the shaft from the ends of keyway and, the diameter of the shaft is to be increased by taking C = The diameter of the shaft is to be decreased by taking C = 1.0 for the range beyond. The fillet radius in the transverse section at the bottom of the keyway are not to be less than d. 3 For over a length of at least 0.2d of the shaft from the ends of hole and, the diameter of the shaft is to be increased by taking C = The diameter of the shaft is to be decreased by taking C = 1.0 for the range beyond. The diameter of the hole is not to be greater than 0.3d. 4 For over a length of at least 0.3d of the shaft from the longitudinal slot and its ends, the diameter of the shaft is to be increased by taking C = The diameter of the shaft is to be decreased by taking C = 1.0 for the range beyond. In general, slot length is to be less than 0.8d, width is to be more than d and inner diameter is to be less than d. The end rounding of the slot is not to be less than half of the slot width and the quantity of slot is not to be more than 3. Slots at respectively 180 degrees apart for 2 slots; And slots at respectively 120 degrees apart for 3 slots. 5 For shaft having several design features, the factor is to be the product of several factors. 6 Where, d is calculated with C = Where shafts may experience vibratory stresses exceeding 90% the permissible stresses for continuous operation, an increase in diameter to the shrink fit diameter is to be provided, e.g. a diameter increase of 1 to 2%. 8 Keyways are in general not to be used in installations with a barred speed range. CHAPTER 12 SHAFT VIBRATION AND ALIGNMENT Section 2 TORSIONAL VIBRATION The amendments to Table (Shape coefficient C K ) apply to ships contracted for construction on or after 1 July /12

13 Integral coupling flange Shrink fit coupling Shape coefficient C K Table Intermediate shafts Thrust shafts Propeller shafts and tube shafts Keyway, tapered connection Keyway, cylindrical connection Radial hole Longitudinal slot On both sides of thrust collar In way of axial bearings where roller bearing is used as thrust bearing Flange mounted or keyless taper fitted propeller shafts Key fitted propeller shafts The portion of the screwshaft and tube shaft forward of the length of screwshaft required by till it reaches the aft peak bulkhead Notes: 1 For multiple-arc transition intermediate shaft, if C K is greater than 1, the testing basis or service experience is to be provided and approved by CCS. 2 C K = 0.3 is a safe approximation within the limitations in note 4 of Table If the slot dimensions are outside of the above limitations, the shape coefficient C K is to be calculated according to following formula: More accurate estimate of the shape coefficient C K may be determined by direct application of FE calculation or the following formula. In which case: 1.45 CK scf where: scf stress concentration factor, which is defined as the ratio between the maximum local principal stress and 3 times the nominal torsional stress (determined for the bored shaft without slots), to be calculated according to following formula: ( l e)/ d scf (1 d 0 / d) e/ d l length of slot, in mm; e width of slot, in mm; d basic diameter of shaft, in mm; d 0 actual bore of shaft, in mm. CHAPTER 13 STEERING GEAR AND WINDLASSES Section 1 STEERING GEAR The words see Appendix 1 to this Chapter for details are added at the end of subparagraph (2). The existing paragraph Non-destructive testing is deleted and the existing paragraphs , and are renumbered as , and respectively. CHAPTER 14 STRENGTHENING FOR NAVIGATION IN ICE Section 1 GENERAL PROVISIONS A new paragraph is added as follows: In addition to the plans and documents required in other Chapters of this PART, for ships with ice notations B1*, B1, B2 and B3, main engine output calculations (including necessary diagrams) are to be submitted for approval. 13/13

14 PART FOUR ELECTRICAL INSTALLATIONS CHAPTER 2 ELECTRICAL INSTALLATIONS IN SHIPS Section 9 SAFETY SYSTEMS FOR SHIPS AND PERSONS ONBOARD In , the words in any ro-ro spaces and other protected spaces where personnel normally work or have access are replaced by in any ro-ro spaces, container holds equipped with integral reefer containers, spaces accessible by doors or hatches (except general cargo holds), and other spaces in which personnel normally work or to which they have access". The existing paragraph is replaced by the following: The fire detection and fire alarm systems are to comply with the relevant requirements of Chapter II-2 of International Convention for the Safety of Life At Sea and Chapter 9 of International Code for Fire Safety Systems. Section 19 ADDITIONAL REQUIREMENTS FOR BULK CARRIERS The existing paragraph is replaced by the following: This Section applies to all bulk carriers and single hold cargo ships other than bulk carriers of 500 gross tonnage and upwards engaged on international voyages. 14/14

15 PART FIVE REFRIGERATED CARGO INSTALLATIONS CHAPTER 1 GENERAL Section 1 GENERAL PROVISIONS The existing paragraph is replaced by the following: Ships with refrigerated cargo systems complying with the relevant requirements of Chapters 1 to 3 of this PART may be assigned the following class notations as appropriate: CRS ( Hold, Max. Sea Water): For ships fitted with refrigerated cargo installations, this notation is to be added after type notation, and minimum temperature(s) to be maintained by the installation at maximum sea water temperature stated and cargo area covered by the minimum temperature(s) are to be stated; CF: For refrigerated installations for cargo fruits, this notation is to be added; QF: For refrigerated cargo installations having a quick-freezing capability for fishing vessels, this notation is to be added. 15/15

16 PART SIX FIRE PROTECTION, DETECTION AND EXTINCTION CHAPTER 2 FIRE EXTINCTION SYSTEMS Section 2 FIXED GAS FIRE-EXTINGUISHING SYSTEMS The existing paragraph (7) is replaced by the following: CO 2 bottles are to be divided into groups according to the required quantity for different spaces to be protected. If releasing of the carbon dioxide is hand-operated by mechanical means, the number of bottles in each group is not to exceed 12. CHAPTER 3 FIRE SAFETY MEASURES Section 4 MISCELLANEOUS The existing paragraph is replaced by the following: The use of aluminium coatings containing greater than 10 percent aluminium by weight in the dry film is prohibited in cargo tanks, cargo tank deck area, pump rooms, cofferdams or any other area where cargo vapour may accumulate. The existing subparagraph (6) is replaced by the following: (6) Possible sources of ignition are not to be fitted in acetylene storage room and any electrical installation, if fitted, is to be of a certified type; The existing subparagraph (9)2 is replaced by the following: (9)2 minimize the likelihood of exposure to hydrocarbons; 16/16

17 PART EIGHT ADDITIONAL REQUIREMENTS CHAPTER 8 ADDITIONAL REQUIREMENTS FOR SHIPS WITH REGARD TO ENVIRONMENTAL PROTECTION Section 3 OTHER CLASS NOTATIONS The existing paragraphs and are replaced by the following: Ships complying with the requirements of this paragraph may be assigned the FTP notation, except ships that are only provided with small oil fuel tanks with an individual capacity of not greater than 30 m 3 and without double hull protection or equivalent means of protection The requirements of this paragraph apply to all oil fuel tanks of all ships, but need not aplly to small oil fuel tanks with an individual capacity of not greater than 30 m 3, provided that the aggregate capacity of such unprotected tanks is not greater than 600 m 3. CHAPTER 10 ADDITIONAL REQUIREMENTS FOR PETROLEUM ASPHALT CARRIERS Section 2 CONSTRUCTION AND ARRANGEMENT OF SHIP A new paragraph is added at the end of paragraph : If the inner shell plating (excluding upper and lower sloping plates) is ensured to have been derusted strictly and coated with epoxy resin or other equivalent anti-corrosion paint, and provided that the inner shell plating can be inspected inside double skin, the above minimum distance requirement also need not be satisfied. CHAPTER 13 ADDITIONAL REQUIREMENTS FOR POLAR CLASS SHIPS Section 2 STRUCTURAL REQUIREMENTS The existing paragraph is amended as follows: The thickness of shell plating required to resist the design ice load, t net, depends on the orientation of the framing. In the case of transversely-framed plating (Ω 70 ), including all bottom plating, i.e. plating in hull areas B Ib, M b and S b, the net thickness is given by: t s[(AF PPF P )/R ] /[ 1+s/( b)] mm net p avg eh 2 In the case of longitudinally-framed plating (Ω 20 ), when b s, the net thickness is given by: t s[(AF PPF P )/R ] /[ 1+s/( l)] mm net p avg eh 2 In the case of longitudinally-framed plating (Ω 20 ), when b<s, the net thickness is given by: t s[(AF PPF P )/R ] 0 [2b / s ( b / s) ] /[ 1+s/( l)] mm net p avg eh 2 17/17

18 PART NINE DOUBLE-HULL OIL TANKERS STRUCTURE( (CSR) SECTION 10 BUCKLING AND ULTIMATEE STRENGTHH Mode (b) in the exiting Table is replaced by the following: Separatee reduction factors are to be applied for areas P1 and P2 using: Cx for Case 1 or Cy, for Case 2, see Table with stress ratio ψ = 1.0 Separate S reduction factors are to t be appliedd for areas P1 and P2 P using Casee 5, Table /18