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NR 467 DT Amd 005 E January 2012

Rules for the Classificationof Steel Ships

NR 467

AMENDMENTS

January 2012

These sheets contain amendments within the following Sections of July 2011 issue of the

Rules for the Classification of Steel Ships.

These amendments are effective from January 1st, 2012.

Part Volume Chapter Section / AppendixPart A NR 467 A1 DT R10 E Ch 1

Ch 2

Ch 3

Ch 4

Ch 5

Sec 2Sec 2, App 1

Sec 2, Sec 4, Sec 5

Sec 6

Sec 10

Continued page 3

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ARTICLE 1

1.1. - BUREAU VERITAS is a Society the purpose of whose Marine Division (the "Society") is the classi-fication (" Classification ") of any ship or vessel or structure of any type or part of it or system therein col-lectively hereinafter referred to as a "Unit" whether linked to shore, river bed or sea bed or not, whetheroperated or located at sea or in inland waters or partly on land, including submarines, hovercrafts, drillingrigs, offshore installations of any type and of any purpose, their related and ancillary equipment, subseaor not, such as well head and pipelines, mooring legs and mooring points or otherwise as decided by theSociety.

The Society:

prepares and publishes Rules for classification, Guidance Notes and other documents (Rules);

issues Certificates, Attestations and Reports following its interventions (Certificates);

publishes Registers.

1.2. - The Society also participates in the application of National and International Regulations or Stand-ards, in particular by delegation from d ifferent Governments. Those activities are hereafter collectively re-ferred to as " Certification ".

1.3. - The Society can also provide services related to Classification and Certification such as ship andcompany safety management certification; ship and port security certification, training activities; all activi-ties and duties incidental thereto such as documentation on any supporting means, software, instrumen-tation, measurements, tests and trials on board.

1.4. - The interventions mentioned in 1.1., 1.2. and 1.3. are referred to as " Services ". The party and/or itsrepresentative requesting the services is hereinafter referred to as the " Client ". The Services are pre-pared and carried out on the assumption that the Clients are aware of the International Maritime

and/or Offshore Industry (the "Industry") practices.

1.5. - The Society is neither and may not be considered as an Underwriter, Broker in ship's sale or char-tering, Expert in Unit's valuation, Consulting Engineer, Controller, Naval Architect, Manufacturer, Ship-builder, Repair yard, Charterer or Shipowner who are not relieved of any of their expressed or impliedobligations by the interventions of the Society.

ARTICLE 2

2.1. - Classification is the appraisement given by the Societ y for its Client, at a certain date, f ollowing sur-veys by its Surveyors along the lines specified in Articles 3 and 4 hereafter on the level of compliance ofa Unit to its Rules or part of them. This appraisement is represented by a class entered on the Certificatesand periodically transcribed in the Society's Register.

2.2. - Certification is carried out by the Society along the same lines as set out in Art icles 3 and 4 hereafterand with reference to the applicable National and International Regulations or Standards.

2.3. - It is incumbent upon the Client to maintain the condition of the Unit after surveys, to presentthe Unit for surveys and to inform the Society without delay of circumstances which may affect thegiven appraisement or cause to modify its scope.

2.4. - The Client is to give to the Society all access and information necessary for the safe and efficientperformance of the requested Services. The Client is the sole responsible for the conditions of presenta-

tion of the Unit for tests, trials and surveys and the conditions under which tests and trials are carr ied out.

ARTICLE 3

3.1. - The Rules, procedures and instructions of the Society take into account at the date of theirpreparation the state of currently available and proven technical knowledge of the Industry. Theyare not a standard or a code of construction neither a guide for maintenance, a safety handbookor a guide of professional practices, all of which are assumed to be known in detail and carefullyfollowed at all times by the Client.

Committees consisting of personalities from the Industry contribute to the development of those docu-ments.

3.2. - The Society only is qualified to apply its Rules and to interpret them. Any reference to themhas no effect unless it involves the Society's intervention.

3.3. - The Services of the Society are carried out by professional Surveyors according to the applicableRules and to the Code of Ethics of the Society. Surveyors have authority to decide locally on matters re-lated to classification and certification of the Units, unless the Rules provide otherwise.

3.4. - The operations of the Society in providing its Services are exclusively conducted by way ofrandom inspections and do not in any circumstances involve monitoring or exhaustive verifica-tion.

ARTICLE 4

4.1. - The Society, acting by reference to its Rules:

reviews the construction arrangements of the Units as shown on the documents presented by the Cli-ent;

conducts surveys at the place of their construction;

classes Units and enters their class in its Register;

surveys periodically the Units in service to note that the requirements for the maintenance of class aremet.

The Client is to inform the Society without delay of circumstances which may cause the date or theextent of the surveys to be changed.

ARTICLE 5

5.1. - The Society acts as a provider of services. This cannot be construed as an obligation bearingon the Society to obtain a result or as a warranty.

5.2. - The certificates issued by the Society pursuant to 5.1. here above are a statement on the levelof compliance of the Unit to its Rules or to the documents of reference for the Services providedfor.

In particular, the Society does not engage in any work relating to the design, building, productionor repair checks, neither in the operation of the Units or in their trade, neither in any advisory serv-ices, and cannot be held liable on those accounts. Its certificates cannot be construed as an im-plied or express warranty of safety, fitness for the purpose, seaworthiness of the Unit or of its valuefor sale, insurance or chartering.

5.3. - The Society does not declare the acceptance or commissioning of a Unit, nor of its construc-tion in conformity with its design, that being the exclusive responsibility of its owner or builder,respectively.

5.4. - The Services of the Society cannot create any obligation bearing on the Society or constitute anywarranty of proper operation, beyond any representation set forth in the Rules, of any Unit, equipment ormachinery, computer software of any sort or other comparable concepts that has been subject to any sur-vey by the Society.

ARTICLE 6

6.1. - The Society accepts no responsibility for the use of information related to its Services which was notprovided for the purpose by the Society or with its assistance.

6.2.- If the Services of the Society cause to the Client a damage which is proved to be the directand reasonably foreseeable consequence of an error or omission of the Society, its liability to-wards the Client is limited to ten times the amount of fee paid for the Service having caused thedamage, provided however that this limit shall be subject to a minimum of eight thousand (8,000)Euro, and to a maximum which is the greater of eight hundred thousand (800,000) Euro and oneand a half times the above mentioned fee.

The Society bears no liability for indirect or consequential loss such as e.g. loss of revenue, lossof profit, loss of production, loss relative to other contracts and indemnities for termination of oth-er agreements.

6.3. - All claims are to be presented to the Society in writing within three months of the date when the Serv-ices were supplied or (if later) the date when the events which are relied on of were first known to the Client,and any claim which is not so presented shall be deemed waived and absolutely barred. Time is to be in-terrupted thereafter with the same periodicity.

ARTICLE 7

7.1. - Requests for Services are to be in writing.7.2. - Either the Client or the Society can terminate as of right the requested Services after givingthe other party thirty days' written notice, for convenience, and without prejudice to the provisionsin Article 8 hereunder.

7.3. - The class granted to the concerned U nits and the previously issued certificates remain valid until thedate of effect of the notice issued according to 7.2. here above subject to compliance with 2.3. here aboveand Article 8 hereunder.

7.4. - The contract for classification and/or certification of a Unit cannot be transferred neither assigned.

ARTICLE 8

8.1. - The Services of the Society, whether completed or not, involve, for the part carried out, the paymentof fee upon receipt of the invoice and the reimbursement of the expenses incurred.

8.2. Overdue amounts are increased as of right by interest in accordance with the applicable leg-islation.

8.3. - The class of a Unit may be suspen ded in the event of non -payment of fee after a first unfru itfulnotification to pay.

ARTICLE 9

9.1. - The documents and data provided to or prepared by the Society for its Services, and the informationavailable to the Society, are treated as confidential. However:

clients have access to the data they have provided to the Society and, during the period of classifica-tion of the Unit for them, to the classification file consisting of survey reports and certificates whichhave been prepared at any time by the Society for the classification of the Unit;

copy of the documents made available for the classification of the Unit and of available survey reportscan be handed over to another Classification Society, where appropriate, in case of the Unit's transferof class;

the data relative to the evolution of the Register, to the class suspension and to the survey status of theUnits, as well as general technical information related to hull and equipment damages, are passed onto IACS (International Association of Classification Societies) according to the association workingrules;

the certificates, documents and information relative to the Units classed with the Society may bereviewed during certificating bodies audits and are disclosed upon order of the concerned governmen-tal or inter-governmental authorities or of a Court having jurisdiction.

The documents and data are subject to a file management plan.

ARTICLE 10

10.1. - Any delay or shortcoming in the performance of its Services by the Society arising from an eventnot reasonably foreseeable by or beyond the control of the Society shall be deemed not to be a breach ofcontract.

ARTICLE 11

11.1. - In case of diverging opinions during surveys between the Client and the Society's surveyor, the So -ciety may designate another of its surveyors at the request of the Client.

11.2. - Disagreements of a technical nature between the Client and the Society can be submitted by theSociety to the advice of its Marine Advisory Committee.

ARTICLE 12

12.1. - Disputes over the Services carried out by delegation of Governments are assessed within theframework of the applicable agreements with the States, international Conventions and national rules.

12.2. - Disputes arising out of the payment of t he Society's invoices by the Client are submitted to the Courtof Nanterre, France.

12.3. - Other disputes over the present General Conditions or over the Services of the Society areexclusively submitted to arbitration, by three arbitrators, in London according to the ArbitrationAct 1996 or any statutory modification or re-enactment thereof. The contract between the Societyand the Client shall be governed by English law.

ARTICLE 13

13.1. - These General Conditions constitute the sole contractual obligations binding together theSociety and the Client, to the exclusion of all other representation, statements, terms, conditionswhether express or implied. They may be varied in writing by mutual agreement.

13.2. - The invalidity of one or more stipulations of the present General Conditions does not affect the va-lidity of the remaining provisions.

13.3. - The definitions herein take precedence over any definitions serving the same purpose which mayappear in other documents issued by the Society.

BV Mod. Ad. ME 545 k - 17 December 2008

M A R I N E D I V I S I O N

G E N E R A L C O N D I T I O N S

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Amendments January 2012 Bureau Veritas 3

Continued from page 1

Part Volume Chapter Section / AppendixPart B NR 467 B1 DT R05 E Ch 2

Ch 3Ch 4

Sec 3

Sec 3, App 2Sec 1

Part B NR 467 B2 DT R05E Ch 5

Ch 7

Ch 8

Sec 1, Sec 2, Sec 6

Sec 1, Sec 2, Sec 3, Sec 4, App 1

Sec 3

NR 467 B3 DT R05E Ch 9

Ch 10

Ch 11

Ch 12

Sec 1, Sec 2, Sec 5, Sec 6, Sec 7, Sec 8

Sec 1, Sec 4

Sec 2

Sec 1, Sec2, Sec 3Part C NR 467 C1 DT R05E Ch 1 Sec 10, Sec 11, Sec 15

NR 467 C2 DT R05E Ch 2

Ch 3

Sec 3, Sec 4, Sec 5, App 2

Sec 1, Sec 3, Sec 6

NR 467 C3 DT R05E Ch 4 Sec 2, Sec 6

Part D NR 467 D1 DT R05E Ch 4

Ch 7

Sec 1, Sec 2, Sec 3

Sec 4

NR 467 D2 DT R05E Ch 9Ch 11

Ch 12

Sec 19Sec 3

Sec 4

Part E NR 467 E1 DT R04E Ch 2

Ch 3

Ch 4

Sec 1

Sec 1

Sec 1, Sec 2

NR 467 E2 DT R04E Ch 8

Ch 9

Ch 10

Sec 1, Sec 2

Sec 2

Sec 17, Sec 18

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4 Bureau Veritas Amendments January 2012

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Part A


Amendments to PART A

Ch 1, Sec 2, Table 1

Replace rows Bulk carrier and Oil recovery ship in Table 1 by:

Add row Wind Turbines IMR Vessel in Table 1 as follows:

T1 :Tab 1 : List of service notations and additional service features


Add the followingrows in Table2:

T2 : Table 2 : List of additional class notations

Service notation [ref. in Part A] Reference Corresponding type of ship according toConventions and/or CodesAdditional service feature Reference

Bulk carrier [4.3] Part D, Chapter 4 Cargo ship (SOLAS, Reg I/2(g))Bulk carrier (SOLAS, Reg XII/1)

ESP Part D, Chapter 4SOLAS, Reg IX/1.6SOLAS, Reg XI-1/2

BC-A or BC-B or BC-C (2) Part D, Chapter 4

heavycargo [AREA1, X1 kN/m2 - ] Pt B, Ch 5, Sec 6

nonhomload (3) CSR Rule Note NR 522

GRAB [X] (4) NR 522, Ch 12, Sec 1

CPS(WBT) (5) Rule Note NR 530

Oil recovery ship [4.7.5] Rule Note NR 585

Wind Turbines IMR Vessel [4.11.6] Rule Note NR 579

Additional class notation Definition inReference in NR 467 or

to other Rule NotesRemarks

ACCOMMODATION [6.14.25] Rule note NR 577

BLUS

SLUS

[6.14.23] Pt E, Ch 10, Sec 17

CPS(COT) [6.15.5] Rule note NR 530 Cargo oil tanks of crude oil tankers of 5 000 tonnesdeadweight (DWT) and above

HEL(Y) [6.14.22] Rule Note NR 500SAS [6.14.24] Pt E, Ch 10, Sec 18

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Part A


Ch 1, Sec 2

Replace Figure4by:

Figure 4 : Typical midship sections of shipswith service notation combination carrier/OOC ESP

Ch 1, Sec 2, [4.1.2]

Replace Note 1 in requirement [4.1.2] by:

Note 1: For ships less than 500 GT:

The assignment of any service notation to a new ship is subjectto compliance with either the set of Rules indicated in the cor-responding Chapter of Part D or the relevant Rule Note, or

For other service notations not subject to the above:

- Pt D, Ch 21, Sec 1, for hull structure, and

- NR 566 Hull Arrangement, Stability and Systems for Shipsless than 500 GT, for general arrangement, stability,machinery, electricity, automation and safety.

Ch 1, Sec 2, [4.3.1]Replace the firstparagraph of requirement [4.3.1] by:

The service notations related to self-propelled ships spe-cially intended for the carriage of dry cargo in bulk arethose listed in [4.3.2] to [4.3.5] or in Part D, Chapter 4 forbulk carrier when the ship does not meet the forthcomingconditions.

Ch 1, Sec 2, [4.3.4]

Add the following Note 1 at the end of requirement [4.3.4]:

Note 1: Ships assigned with the service notation combination car-rier/ OBO ESP that do not comply with MARPOL I/19 may be subjectto International and/or National Regulations requiring phase out.

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Part A


Ch 1, Sec 2, [4.3.5]

Add the following Note2 at the end of requirement [4.3.5]:

Note 2: Ships assigned with the service notation combination car-rier/OOC ESP that do not comply with MARPOL I/19 may be subjectto International and/or National Regulations requiring phase out.

Ch 1, Sec 2, [4.4.2]

Add the following Note 1 at the end of requirement [4.4.2]:

Note 1: Ships assigned with the service notation oil tanker ESP thatdo not comply with MARPOL I/19 may be subject to Internationaland/or National Regulations requiring phase out under MARPOLI/20 and/or MARPOL I/21.

Ch 1, Sec 2, [4.7]

Replace requirement [4.7.5]by:

4.7.5 The service notation oil recovery ship is assigned toships specially equipped with fixed installations and/ormobile equipment for the removal of oil from the sea sur-face and its retention on board, carriage and subsequentunloading. The additional requirements of Rule NoteNR585 are applicable to these ships.

Ch 1, Sec 2, [4.11]

Replace requirement [4.11.4] by:

4.11.4 Crew boat

The service notation crew boat is assigned to ships less than500 GT, dedicated to transport of offshore personnel fromharbours to moored offshore installations or ships and meet-ing the requirements of Rule Note NR490.

Note 1: In NR490, Section 2, Section 5, Section 6 and Section 7are to be replaced by the relevant sections of NR566.

Note 2: The limit of 45 m for service notation crew boat as speci-fied in Sec 1, [1.1.1] of NR490 is no longer applicable

Note 3: Ships which do not fulfil the minimum speed criteria givenin Sec 1, [1.1.1] of NR490 will not be assigned the above servicenotation.

Insert the following requirement [4.11.6]:

4.11.6 Wind Turbines IMR Vessel

The service notation Wind Turbines IMR Vessel is assignedto offshore units intended to operate in wind farms.

These units are designed and built for IMR operations(Installation - Maintenance - Repair) in accordance with therequirements of Rule Note NR579.

Note 1: Ships for transfer of personnel are outside the scope of RuleNote NR579 and are to comply with NR467 Rules for Steel Ships

or NR490 Crew Boats, as relevant.

Ch 1, Sec 2, [4.12]


4.12.1 The service notation is completed by one of the fol-lowing additional service features, when the ship complieswith the requirements of NR529 Safety Rules for Gas-Fuelled Engine Installations in Ships or NR481 Design

and Installation of Dual Fuel Engines Using Low PressureGas or Part D, Chapter 9 or a combination thereof, asapplicable:

dualfuel for engines using both gas and fuel oil as fuel

gasfuel for engines using only gas as fuel.

The gas may be either compressed natural gas or liquefiednatural gas.

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Part A


Ch 1, Sec 2, [6.14]

Add the followingrequirements [6.14.23], [6.14.24] and [6.14.25]:

6.14.23 Bow Loading/Unloading Systems (BLUS)Stern Loading/Unloading Systems (SLUS)

The additional class notations BLUS or SLUS may beassigned to ships having the service notation oil tanker andfitted with bow or stern loading/unloading systems.

The requirements for the assignment of these notations aregiven in Pt E, Ch 10, Sec 17.

6.14.24 Supply At Sea (SAS)

The additional class notation SAS may be assigned to shipshaving the service notation supply vessel and operated forunderway ship-to-ship supply at sea (SAS) of liquid andsolid supplies.

The requirements for the assignment of this notation aregiven in Pt E, Ch 10, Sec 18.

Note 1: Application to other service notations may be consideredon a case-by-case basis.

6.14.25 ACCOMMODATION

The additional class notation ACCOMMODATION may be

assigned to ships equipped with accommodation and recre-ational facilities onboard as required by Title 3 Accommo-dation, Recreational facilities, Food and Catering of theILO Maritime Labour Convention 2006.

The requirements for the assignment of this notation aregiven in NR577 Design and Construction of Accommoda-tion.

Ch 1, Sec 2, [6.15.4]

Replace the title of requirement [6.15.4] by:

6.15.4 Coating performance standard CPS(WBT)

Ch 1, Sec 2, [6.15]

Add the followingrequirement [6.15.5]:

6.15.5 Coating performance standard CPS(COT)

The additional class notation CPS(COT) may be assigned toships complying with the requirements of NR530 CoatingPerformance Standard.

Note 1: CPS(COT) applies to cargo oil tanks of crude oil tankers of5 000 tonnes deadweight (DWT) and above.

Ch 2, Sec 2, [2.1]


2.1.5 Recommendations

A defect and/or deficiency to be dealt with in order to main-tain class, within a specific period of time, is indicated as arecommendation. A recommendation is pending until it is

cleared, through a survey by the attending Surveyor or uponevidence that requirements have been completed, to thesatisfaction of the Society. Where it is not cleared by its limitdate, the recommendation is overdue.

Ch 2, Sec 2, [5.6]

Replace requirement [5.6.1]by the followingrequirements [5.6.1]and [5.6.2]:

5.6.1 There are to be two internal examinations of boilersin each period of class of five years.

In all cases, the interval between any two such examina-tions is not to exceed 36 months.

5.6.2 There is to be one internal examination of thermaloil heaters in each period of class of five years.

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Part A


Ch 2, App 1, [1.1]


1.1.5 The conditions and procedures for the review of aPMS are indicated in [2].

Ch 2, App 1, [2]

Replace the title of Article 2 by:

2 Conditions and procedures for thereview of the system

Ch 2, App 1, [2.1]


2.1.1 The PMS documentation is to be subject to a consist-ency check. To this end the Owner is to make a formalrequest to the Society and provide the documentation andinformation specified in [2.2], combined in a manualdescribing the proposed scheme and including sample cop-

ies of the different documents to be used during the imple-mentation of the scheme. The PMS is to be programmedand maintained by a computerized system. However, thismay not be applied to the current already reviewedschemes.

Ch 2, App 1, [2.1.2]

Replace the lastparagraph of requirement [2.1.2] by:

The owner is to confirm that required functional applicationof these systems is met (alternatively, and upon request,these systems are approved by the Society).

Ch 2, App 1, [3.1.1]

Replace When the documentation submitted has been approved by When the documentation sub-mitted has been checked for consistency at the beginning of requirement [3.1.1].

Ch 2, App 1, [4.1.1]

Replace the last itemof the bulleted list by:

any change to the approved PMS is submitted to theSociety for agreement.

Ch 2, App 1, [4.1]


4.1.4 In the case of sale or change of management of theship or classification after construction, the assignment ofthe PMS will be reconsidered

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Part A


Ch 2, App 1, [5.1]


5.1.1 The implementation survey is to be carried out by a

Surveyor of the Society, as stated in [3.1.1], within one yearfrom the date of the documentation checking.

Ch 2, App 1, [5.1.2]

Replace the first itemof the bulleted list by:

the PMS is implemented in accordance with the docu-

mentation which has been checked and is suitable for

the type and complexity of the components and systems

on board


Add the followingrow in Table 1:

T3 :Table 1: Intermediate survey of hull (all ships)

Ch 3, Sec 4, [3.1.3]

Replace the second paragraph of requirement [3.1.3]by:

The in-water survey is to be carried out with the ship in

sheltered water and preferably with weak tidal streams and

currents. The in-water visibility and the cleanliness of the

hull below the waterline are to be clear enough to permit a

meaningful examination allowing the Surveyor and thediver to determine the condition of the plating, the append-

ages and the welding.

Ch 3, Sec 4, [3.1.4]

Replace the second paragraph of requirement [3.1.4]by:

The Surveyor is to be satisfied with the methods of orienta-

tion of the diver(s) on the plating, which should make use

where necessary of permanent markings on the plating at

selected points and with the method of pictorial representa-

tion. An efficient two-way communication between the Sur-

veyor and the diver(s) is to be provided.

ITEMAge of ship (in years at time of intermediate survey)

5 < age 10 10 < age 15 age > 15

CARGO SPACES (for ships otherthan ships engaged in the carriage

of dry cargoes only, or ships sub-ject to Ch 4, Sec 3, Ch 4, Sec 4 orCh 4, Sec 5)

Selected cargo spaces internallyexamined

Selected cargo spaces internallyexamined

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Part A


Ch 3, Sec 5, [1.2.1]

Add the following Note2 at the end of itemc):

Note 2: Refer also to Ch 2, Sec 2, [5.5.2], item b) where the propel-ler is fitted keyless to the shaft taper, and, where the additional

class notation MON-SHAFT has been assigned, the non-destructiveexamination is carried out at intervals not exceeding 15 years.

Ch 4, Sec 6, [2.1.3]

Add the followingparagraphat the end of requirement [2.1.3]:

Confirmation is to be obtained that no unapproved changes

have been made to the bow, inner, side shell and sterndoors since the last survey.

Ch 4, Sec 6, [2.1.4]

Replace the lastparagraph of requirement [2.1.4] by:

Clearances of hinges, bearings and thrust bearings are to betaken, where no dismantling is required. Where the func-tion test is not satisfactory, dismantling may be required tomeasure the clearances. If dismantling is carried out, a vis-ual examination of hinge pins and bearings together withNDT of the hinge pin is to be carried out. Clearances ofsecuring, supporting and locking devices are to be meas-ured, where indicated in the OMM.

Ch 4, Sec 6, [2.1]


2.1.5 A close-up survey of securing, supporting and lock-ing devices as listed below, including welding, is to be car-ried out:

cylinder securing pins, supporting brackets, back-upbrackets (where fitted) and their welded connections

hinge pins, supporting brackets, back-up brackets(where fitted) and their welded connections

locking hooks, securing pins, supporting brackets, back-up brackets (where fitted) and their welded connections

locking pins, supporting brackets, back-up brackets(where fitted) and their welded connections

locating and stopper devices and their welded connec-tions.

Ch 4, Sec 6, [2.1.8]

Replace itemc)by:

c) indicators of open/closed position of doors and of secur-ing/locking devices at navigation bridge and otherremote control stations are to be checked; other safetydevices such as isolation of securing/locking hydraulic

system from other hydraulic systems, access to operat-ing panels, notice plates and warning indicator lightsare to be checked

Add the following itemat the end of iteme):

confirmation that power supply for indicator system

is supplied by the emergency source or other securepower supply and is independent of the power sup-ply for operating the doors

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Part A


Ch 4, Sec 6, [2.1]


2.1.9 Non-destructive tests and/or thickness measurementsmay be required by the Surveyor after visual examination

and function test or in cases where cracks or deformationshave been found.

Ch 4, Sec 6, [3]

Replace sub-article [3.1]by:

3.1 Shell and inner doors

3.1.1 The class renewal survey is to include, in addition tothe requirements of the annual survey as required in [2],examination, tests and checks of sufficient extent to verifythat the bow, inner, side shell and stern doors are in satisfac-

tory condition and considered able to remain in compli-ance with the applicable requirements, subject to propermaintenance and operation in accordance with the Opera-tion and Maintenance Manual (OMM) or the manufacturersrecommendations and the periodical surveys being carriedout at the due dates for the five-year period until the nextclass renewal survey.

3.1.2 The examinations of the doors are to be supple-mented by thickness measurements and testing to verifycompliance with the applicable requirements so that thestructural and weathertight integrity remains effective. Theaim of the examination is to identify corrosion, significantdeformation, fractures, damages or other structural deterio-ration that may be present.

3.1.3 A close visual inspection of structural arrangements isto be carried out, supplemented by non-destructive testsand/or thickness measurements, as deemed necessary bythe Surveyor.

3.1.4 A survey of the items listed in [2.1.4] and [2.1.5],including close-up survey of securing, supporting and lock-ing devices, together with welding, is to be carried out.

Non-destructive testing and thickness measurements are tobe carried out on securing, supporting and locking devices,including welding, to the extent considered necessary bythe Surveyor. Whenever a crack is found, an examinationwith NDT is to be carried out in the surrounding area andfor similar items, as considered necessary by the Surveyor.

3.1.5 Clearances of hinges, bearings and thrust bearingsare to be taken. Unless otherwise specified in the OMM orby the manufacturers recommendation, the measurementof clearances on Ro-Ro cargo ships may be limited to repre-sentative bearings where dismantling is needed in order tomeasure the clearances.

If dismantling is carried out, a visual examination of hingepins and bearings together with NDT of the hinge pins areto be carried out.

3.1.6 Non-return valves of drainage arrangements are to bechecked after dismantling.

3.1.7 The maximum thickness diminution of hinging arms,

securing, supporting and locking devices is to be treatedaccording to the normal procedure for primary structures,but is not to be more than 15% of the as-built thickness orthe maximum corrosion allowance of the Society, which-ever is less. Certain designs may be subject to the Societysspecial consideration.

3.1.8 Checking the effectiveness of sealing arrangementsby hose testing or equivalent is to be carried out.

Ch 5, Sec 10, [10]

Replace the title of Article 10by:

10 COMF-NOISE, COMF-VIB, COMF+,COMF-NOISE-Pax, COMF-NOISE-Crew,COMF-VIB-Pax, COMF-VIB-Crew,ACCOMMODATION

Ch 5, Sec 10, [10.3.1]

Add the followingparagraph at the end of requirement [10.3.1]:

In case of additional class notation ACCOMMODATION,noise measurements in harbour and sea conditions, insula-

tion and impact noise measurements are to be carried outonly in case of significant modifications, as stated in[10.2.1].

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Part B


Amendments to PART B

Ch 2, Sec 3, [3.1]


3.1.1 The requirements in Ch 2, Sec 3, [3.2] to Ch 2, Sec 3,[3.4] are not applicable to ships with service notations bulkcarrier, bulk carrier CSR ESP, bulk carrier CSR BC-A ESP,bulk carrier CSR BC-B ESP, bulk carrier CSR BC-C ESP, orecarrier ESP, combination carrier ESP, of 20,000 gross ton-

nage and over, and to ships with service notation oil tankerESP of 500 gross tonnage and over. For such ships, refer tothe applicable requirements of Part D.

Ch 3, Sec 3, [4.1.1]

Replace the 4th paragraphof requirement [4.1.1]by:

The damage control plan is required for the following ships:

ships carrying passengers

cargo ships of 500 GT and over.

DeleteNote 1.

Ch 3, App 2, [1.2.5]

Replace the paragraph introducing the firstbulleted list by:

In addition to the standard loading conditions defined in[1.2.1], for ships with the service notation bulk carrier, bulkcarrier ESP, ore carrier ESP and combination carrier ESPthe following loading cases are to be included in the trimand stability booklet:

Replace the paragraph introducing the second bulleted listby:

For ships with one of the service notations ore carrier ESPand combination carrier ESP and for ships with the servicenotation bulk carrier or bulk carrier ESP completed by theadditional feature nonhomload, the following loading casesare also to be included in the trim and stability booklet:

Ch 4, Sec 1, [2.1]


2.1.2 Higher strength steels other than those indicated inTab 1 are considered by the Society on a case by case basis.

In particular, for ultra large container ships, higher strengthsteels having a minimum specified yield stress ReH equal to

460 N/mm2 may be used in the upper deck zone, providedthat fatigue assessment is carried out for structural details(such as hatch corners) and members in this zone.

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Part B


Ch 4, Sec 1, [2.1]

Replace requirements [2.1.3]and [2.1.4] by:

2.1.3 When steels with a minimum specfified yield stress

ReH other than 235 N/mm2 are used on a ship, hull scant-lings are to be determined taking into account the materialfactor k defined in [2.3].

2.1.4 When no other information is available, the mini-mum specified yield stress ReH and the Youngs modulus E of

steels used at temperatures between 90C and 300C maybe taken respectively equal to:

where:

ReH0 : Value of the minimum specified yield stress atambient temperature

E0 : Value of the Youngs modulus at ambient tem-

perature.

Ch 4, Sec 1, [2]

Replace sub-article [2.3] by:

2.3 Material factor k

2.3.1 Unless otherwise specified, the material factor k hasthe values defined in Tab 2, as a function of the minimumspecified yield stress ReH.

For intermediate values of ReH , k may be obtained by linear

interpolation.

2.3.2 Steels with a yield stress lower than 235 N/mm2 or

greater than 390 N/mm2

are considered by the Society on acase by case basis.

In particular, where higher strength steels having a mini-mum specified yield stress ReH equal to 460 N/mm

2 are

used according to [2.1.2], the material factor k may betaken equal to 0,62.

Ch 4, Sec 1, [2.4.1]

Replace the bulleted list in requirement [2.4.1] by:

Tab 4 for ships greater than 150 m in length and havinga single strength deck

Tab 5 for ships greater than 250 m in length

Tab 6 for single-side bulk carrier, bulk carrier ESP andcombination carrier / OBO ESP

Tab 7 for ships with ice strengthening.


Replace the title of Table 6 by:

T1 :Table 6 : Application of material classes and grades for single-side bulk carrier, bulk carrier ESPand combination carrier / OBO ESP

ReH ReH 0 1 04,0 75,1000-------------

=

E E0 1 03,0 5,

1000-------------

=

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Part B


Ch 4, Sec 1, [4.4]


4.4.1 The material factor k for aluminium alloys is to beobtained from the following formula:

where:

Rlim : Minimum specified yield stress of the parent

metal in welded condition Rp0,2 , in N/mm2, but

not to be taken greater than 70% of the mini-

mum specified tensile strength of the parent

metal in welded condition Rm , in N/mm2

Rp0,2 = 1 Rp0,2

Rm = 2 Rm

Rp0,2 : Minimum specified yield stress, in N/mm2, of

the parent metal in delivery condition

Rm : Minimum specified tensile stress, in N/mm2, of

the parent metal in delivery condition.

1 and 2 are given in Tab 14.


Replace the definiton of Rp0,2 and Rm in Note 1 of Table 14 by:

Ch 5, Sec 1, [2.4.3]

Replace the definition of TB, in the second itemof the bulleted listof requirement [2.4.3], by:

- TB = 0,03 L 7,5 m in general- TB = 2 + 0,02 L for ships with one of the service

notations bulk carrier, bulk carrier ESP, ore carrierESP, combination carrier ESP or oil tanker ESP.

Ch 5, Sec 1, [2.5.2]

Replace the second paragraphof requirement [2.5.2]by:

For ships with the service notation general cargo ship, bulkcarrier, or bulk carrier ESP completed by the additionalservice feature nonhomload, the loading conditions to be

considered are to include the cases where the selectedholds are empty at draught T, according to the indicationsspecified in the ship notation.

Ch 5, Sec 2, [2.1.2]

Replace the second hyphenated item of item ballast conditions in the bulleted list of requirement

[2.1.2] by:

- for ships with the service notation bulk carrier, therequirements in Pt D, Ch 4, Sec 3, [4.1], as applica-

ble, are complied with all filling levels betweenempty and full.


Replace, in Table 14, the service notation bulkcarrier by bulkcarrier or bulkcarrierESP.Replace, in Table 14, the service notation combination carrier by combination carrierESP.

k235Rlim-----------=

Note 1:

Rp0,2 : Minimum specified yield stress, in N/mm2, ofmaterial in welded condition (see [4.3])

Rm : Minimum specified tensile stress, in N/mm2, ofmaterial in welded condition (see [4.3]).

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Part B


Ch 7, Sec 1, [2.4.1]


general cargo ship, intended to carry dry bulk cargo inholds

bulk carrier

bulk carrier ESP

ore carrier ESP

combination carrier ESP

Ch 7, Sec 1, [3.2.4] and Ch 7, Sec 2, [3.3.4]

Replace the two lastparagraphs of these two requirements by:

where:

pST : Still water pressure defined in Ch 5, Sec 6, Tab

14

pS : Still water sea pressure defined in Ch 5, Sec 5,

[1.1.1] for the draught T1 at which the testing is

carried out.

If the draught T1 is not defined by the Designer,

it may be taken equal to the light ballast draughtTB defined in Ch 5, Sec 1, [2.4.3].

Ch 7, Sec 3

Insert the following Figure A andFigure B:

Figure A : Example of stress averaging area

at opening rounded edge

Figure B : Example of stress averaging areaat rounded bracket edge

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Part B



Add the followingrow in Table5 :

Ch 7, Sec 3, [4]

Replace sub-article [4.3] by:

4.3 Checking criteria

4.3.1 Master allowable stress

The master allowable stress, MASTER, in N/mm2, is to beobtained from the following formula:

4.3.2 General

For all types of analysis, according to Ch 7, App 1, [2], it isto be checked that the equivalent stress VM calculated

according to Ch 7, App 1, [5] is in compliance with the fol-lowing formula:

4.3.3 Structural detail analysis based on very finemesh finite elements models

In a fine mesh model as defined in Ch 7, App 1, [3.4.3],high stress areas for which VM exceeds 0,95 MASTER are to

be investigated through a very fine mesh structural detailanalysis according to Ch 7, App 1, [3.4.4], and both follow-ing criteria are to be checked:

a) The average Von Mises equivalent stress VM-av as definedin [4.3.4] is to comply with the following formula:

b) The equivalent stress VM of each element is to comply

with the following formulae: for elements not adjacent to the weld:

for elements adjacent to the weld:

4.3.4 Stress averaging on very fine mesh

The average Von Mises equivalent stress VM-av , in N/mm2,

is to be obtained from the following formula:

where:

VM-i : Von Mises stress at the centre of the i-th element

within the considered area, in N/mm2

Ai : Area of the i-th element within the considered

area, in mm2

n : Number of elements within the considered area.

Stress averaging is to be performed over an area defined asfollows:

the area considered for stress averaging is to have a size

not above the relevant spacing of ordinary stiffeners(s x s)

for very fine mesh along rounded edges (openings,rounded brackets) the area considered for stress averag-ing is to be limited only to the first ring of border ele-ments, over a length not greater than the relevantspacing of ordinary stiffeners (see Fig A and Fig B)

the area considered for stress averaging is to include anentire number of elements

the area considered for stress averaging is not to bedefined across structural discontinuities, web stiffenersor other abutting structure

for regions where several different stress averaging areas

may be defined, the worst is to be considered for thecalculation of average Von Mises equivalent stress.

4.3.5 Particular requirements

For very fine mesh regions located on bracket webs in thevicinity of bracket toes, where an equivalent (s x s) area can-not be defined, the yielding check is to be based only onthe criteria given in [4.3.3], item b).

Other structural details having shapes not allowing thestress averaging as required in [4.3.4] are to be speciallyconsidered by the Society, on a case by case basis.

Ch 7, Sec 4, Table 9Replace, in column Service notation, the notation Bulk carrier ESP by Bulk carrier.

Type of threedimensional model

(see App 1)

Resistance partial safety factor R(see [4.3] and [5.3])

General Flooding pressure

Very fine mesh finiteelement model

1,05 1,02

MASTERRY

Rm----------=

VM MASTER

VM av MASTER

VM 1 53MASTER,

VM 1 34MASTER,

VM av

AiVM i

1

n

Ai

1

n

---------------------------=

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Part B


Ch 7, App 1, [3.4]


3.4.4 Very fine mesh for the analysis of structuraldetails

In order to obtain an accurate representation of stresses in

the area of interest, the structural model is to be built on the

basis of the following criteria:

the mesh dimensions are to be such as to enable a faith-ful representation of the stress gradients

the size of elements in the area of interest is not to begreater than 50 mm x 50 mm

the extent of the refined area is to be at least of 10 ele-

ments in any direction around its centre

the use of membrane elements is only allowed when

significant bending effects are not present; in the othercases, elements with general behaviour are to be used

the use of linear triangular elements is to be avoided as

much as possible in high stress area; quadrilateral ele-

ments are to have 90 angles as much as possible, or

angles between 60 and 120; the aspect ratio is to be

close to 1; when the use of a linear triangular element

cannot be avoided, its edges are to have the same length

the local fine mesh can either be included directly into

the global model or belong to a separate sub-model; the

gradient of mesh size must be reasonably low.

Ch 8, Sec 3, [2.4.1]


general cargo ship, intended to carry dry bulk cargo inholds

bulk carrier

bulk carrier ESP

ore carrier ESP

combination carrier ESP

Ch 9, Sec 1, [2.1]


2.1.2 The partial safety factors to be considered for testing

of fore peak structures are specified in Tab A.

Ch 9, Sec 1Add the followingTable A:

T2 :Table A : Fore peak structures

Partial safety factors for testing

Partial safety factorscovering uncertainties

regarding:

Partial safety factors

Symbols PlatingOrdinarystiffeners

Still water pressure S2 1,00 1,00

Wave induced pressure W2 N.A. N.A.

Material m 1,02 1,02

Resistance R 1,05 1,20

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Part B


Ch 9, Sec 1, [2.3]


2.3.4 Lateral pressure in testing conditions

The lateral pressure in testing conditions, pT , in kN/m2

, istaken equal to:

pST pS for bottom shell plating and side shell plating

pST otherwise

where:

pST : Still water pressure defined in Ch 5, Sec 6, Tab 14

pS : Still water sea pressure defined in Tab 2 and cal-culated for the draught T1 at which the testing is

carried out.

If the draught T1 is not defined by the Designer,

it may be taken equal to the light ballast draughtTB defined in Ch 5, Sec 1, [2.4.3].

Ch 9, Sec 2, [2.1]


2.1.2The partial safety factors to be considered for testingof aft peak structures are specified in Tab B.

Ch 9, Sec 2

Add the followingTable B:

T3 : Table B : Aft peak structures

Partial safety factors for testing

Replace the head of Table 2 by:

T4 :Table 2 : Still water and wave pressures

Ch 9, Sec 2, [2.3]


2.3.4 Lateral pressure in testing conditions

The lateral pressure in testing conditions, pT , in kN/m2, is

taken equal to:

pST pS for bottom shell plating and side shell plating

pST otherwise

where:

pST : Still water pressure defined in Ch 5, Sec 6, Tab 14

pS : Still water sea pressure defined in Tab 2 and cal-

culated for the draught T1 at which the testing is

carried out.

If the draught T1 is not defined by the Designer,it may be taken equal to the light ballast draughtTB defined in Ch 5, Sec 1, [2.4.3].

Partial safety factorscovering uncertainties

regarding:

Partial safety factors

Symbols Plating Ordinarystiffeners

Still water pressure S2 1,00 1,00

Wave induced pressure W2 N.A. N.A.

Material m 1,02 1,02

Resistance R 1,05 1,20

Location

Still water sea pressure pS,

in kN/m2Wave pressure pW,

in kN/m2

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Part B


Ch 9, Sec 5, [8.1.1] and Ch 9, Sec 6, [7.1.1]

Replace itema), in these two requirements, by:

a) main particulars and design drawings:

special safety precautions

details of ship equipment and design loading (for ramps)

key plan of equipment (doors and ramps)

manufacturer's recommended testing for equipment

description of equipment for:

- bow doors

- inner bow doors

- bow ramp/doors

- side doors

- stern doors

- central power pack

- bridge panel

- engine control room panel


Replace the title of Table 3 by:

T5 : Table 3 : Corrosion additions tc for steel hatch covers

and hatch coamings of bulk carrier, bulk carrier ESP,

ore carrier ESP, combination carrier/OBO ESP

and combination carrier/OOC ESP

Ch 9, Sec 7, [6.2.2]

Replace the firstparagraph of requirement [6.2.2]by:

6.2.2 Moreover for ships with service notation bulk carrier,bulk carrier ESP, ore carrier ESP, combination carrier/OBOESP or combination carrier/OOC ESP:

Ch 9, Sec 7, [6.4]

Replace the title of sub-article[6.4] by:

6.4 Additional requirements for scantlings of

bulk carrier, bulk carrier ESP, ore carrierESP, combination carrier/OBO ESP andcombination carrier/OOC ESP

Ch 9, Sec 7, [7.3.8]

Replace the third paragraph of requirement [7.3.8]by:

No. 1 hatch cover is to be effectively secured, by means ofstoppers, against the longitudinal forces acting on the for-ward end arising from a pressure of 230 kN/m 2. This pres-sure may be reduced to 175 kN/m2 if a forecastle is fitted inaccordance with the applicable requirements of:

Pt D, Ch 4, Sec 2, [2] for ships with service notationsbulk carrier or bulk carrier ESP

Pt D, Ch 5, Sec 2, [2] for ships with service notation orecarrier ESP

Pt D, Ch 6, Sec 2, [2] for ships with service notationscombination carrier/OBO ESP or combination car-

rier/OOC ESP.

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Part B


Ch 9, Sec 8, [1.6]


1.6.2 Loading cases

The scantlings of the structure are to be verified in both seaand harbour conditions for the following cases:

loaded movable deck or inner ramp under loadsaccording to the load distribution indicated by theDesigner

loaded movable deck or inner ramp under uniformlydistributed loads corresponding to a pressure, in kN/m2,equal to p0 + p1

empty movable deck under uniformly distributed

masses corresponding to a pressure, in kN/m2, equal top0

where:

PP : Mass of the movable deck, in kN

PV : Mass of a vehicle, in kN

nV : Maximum number of vehicles loaded on the

movable deck

AP : Effective area of the movable deck, in m2.

Ch 9, Sec 8

Replace Table 1 by:

T6 : Table 1 : Movable decks and inner ramps

Still water and inertial pressures

p0PPAP------=

p1 nVPVAP------=

Ship

condition

Load

case

Still water pressure pS and

inertial pressure pW, in kN/m2

Still water

condition

pS = p0 in harbour condition during lifting

pS = p0 + p1 in other cases

Uprightsea

condition

a No inert ial pressure

bin x direction

in z direction

Inclinedsea

condition(negativeroll angle)

cin y direction

in z directiond

Harbourcondition

(1)

duringlifting

pW,X = 0,035 p0pW,Y = 0,087 p0pW,Z = 0,200 p0

in x direction

in y direction

in z direction

at rest pW,X = 0,035 (p0 + p1)

pW,Y = 0,087 (p0 + p1)

pW,Z = 0,100 (p0 + p1)

in x direction

in y direction

in z direction

(1) For harbour conditions, a heel angle of 5 and a trimangle of 2 are taken into account.

Note 1:

p0, p1 : Pressures, in kN/m2, to be calculated according

to [1.6.2] for the condition considered.

: Coefficient taken equal to 0,5

CFA : Combination factor, to be taken equal to:

CFA = 0,7 for load case c

CFA = 1,0 for load case d

pW X,aX1g

------- p0 p1+( )=

pW Z,aZ1g

------- p0 p1+( )=

pW Y,CFAaY2

g----------------- p0 p1+( )=

pW Z,CFAaZ2

g----------------- p0 p1+( )=

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Part B


Ch 10, Sec 1, [5.3.5]

Replace the title of requirement [5.3.5]by:

5.3.5 Couplings with key

Delete the third paragraphof requirement [5.3.5].

Ch 10, Sec 1, [5.3]

Insert the followingrequirement [5.3.6]:

5.3.6 Keyless couplings

For cone couplings with hydraulic arrangements for assem-bling and disassembling the coupling, the key may be omit-ted. In this case the designer is to submit to the Societyshrinkage calculations supplying all data necessary for thepush-up length check, according to [5.3.2].

Ch 10, Sec 1, [7.3]


7.3.9 Rudder nose plate thickness

Rudder nose plates are to have a thickness not less than:

1,25 tF without exceeding 22 mm, for tF < 22 mm

tF, for tF 22 mm,

where tF is defined in [7.3.1].

The rudder nose plate thickness may be increased on a caseby case basis to be considered by the Society.

Ch 10, Sec 4, [3.8.8]

Add the followingparagraph at the end of requirement [3.8.8]:

Examples of arrangements for permanently attached closingappliances are such as steel plates with cut-outs to accom-modate chain links or canvas hoods with a lashing arrange-ment that maintains the cover in the secured position.

Ch 11, Sec 2, [2.2.2]

Replace the service notation bulk carrier ESP by bulk carrier inthe first line of requirement [2.2.2].

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Part B


Ch 11, Sec 2, [3.1]


3.1.2 Bulk carriers, ore carriers and combinationcarriers equal to or greater than 150 m in length

In addition to [3.1.1], for ships with one of the service nota-tions bulk carrier, ore carrier ESP or combination carrierESP, and equal to or greater than 150 m in length, the load-ing manual is also to describe:

for cargo holds of ships with the service notation bulkcarrier: the envelope results and permissible limits ofstill water bending moments and shear forces in thehold flooded condition

the cargo hold(s) or combination of cargo holds whichmight be empty at full draught

hold mass curves for each single hold in the relevantloading conditions listed in Pt D, Ch 4, Sec 3, [3.1],showing the maximum allowable and the minimum

required masses of cargo and double bottom contents ofeach hold as a function of the draught at mid-hold posi-tion (for determination of permissible mass in cargoholds, refer to Ch 11, App 1)

hold mass curves for any two adjacent holds in the rele-vant loading conditions listed in Pt D, Ch 4, Sec 3, [3.1],

showing the maximum allowable and the minimumrequired masses of cargo and double bottom contents ofany two adjacent holds as a function of the meandraught in way of these holds. This mean draught maybe calculated by averaging the draught of the two mid-hold positions (for determination of permissible mass incargo holds, refer to Ch 11, App 1)

maximum allowable tank top loading together withspecification of the nature of the cargo for cargoes otherthan bulk cargoes

maximum allowable load on deck and hatch covers. Ifthe ship is not approved to carry load on deck or hatchcovers, this is to be clearly stated in the loading manual

the maximum rate of ballast change together with theadvice that a load plan is to be agreed with the terminalon the basis of the achievable rates of change of ballast.

Ch 11, Sec 2, [3.2]


3.2.2 Bulk carriers, ore carriers and combinationcarriers equal to or greater than 150 m in length

In addition to [3.2.1], for ships with one of the service nota-tions bulk carrier, ore carrier ESP or combination carrier

ESP, and equal to or greater than 150 m in length, the fol-lowing loading conditions, subdivided into departure andarrival conditions as appropriate, are also to be included inthe loading manual:

alternate light and heavy cargo loading conditions atmaximum draught, where applicable

homogeneous light and heavy cargo loading conditionsat maximum draught

ballast conditions

For ships with ballast holds adjacent to topside wing,hopper and double bottom tanks, it may be acceptablethat the ballast holds are filled when the topside wing,

hopper and double bottom tanks are empty

short voyage conditions where the ship is to be loadedto maximum draught but with a limited amount of bun-kers

multiple port loading/unloading conditions

deck cargo conditions, where applicable typical loading sequences where the ship is loaded from

commencement of cargo loading to reaching full dead-weight capacity, for homogeneous conditions, relevantpart load conditions and alternate conditions whereapplicable. Typical unloading sequences for these con-ditions are also to be included

The typical loading/unloading sequences are also to bedeveloped to not exceed applicable strength limitations.The typical loading sequences are also to be developedpaying due attention to the loading rate and deballastingcapability

typical sequences for change of ballast at sea, where

applicable.

Ch 11, Sec 2, [4.1.2] and Ch 11, Sec 2, [4.2.2]

Replace the service notation bulk carrier ESP by bulk carrier in the first paragraph introducingthe bulleted lists.

Ch 11, Sec 2, [4.3.2]

Replace the 3rd paragraphof requirement [4.3.2]by:

When the loading instrument also performs stability calcu-

lations, it is to cover all the stability requirements applicableto the ship. The test conditions are to be taken from theships approved trim and stability booklet.

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Part B


Ch 12, Sec 1, [2.3]


2.3.1 General

Ordinary fillet welding may be adopted for T connections of

the various simple and composite structural elements,where they are subjected to low tensile stress or where theyare not critical for fatigue.

Where this is not the case, partial or full T penetration weld-ing according to [2.4] is to be adopted.

Ch 12, Sec 1, [2.3.3]

Insert the following paragraph after the sentence In general, staggered welding is not allowed forconnections subjected to highalternate stresses.:

For connections of longitudinal ordinary stiffeners to deckplating of accommodations in passenger ships, one sidecontinuous welding may be accepted on a case by casebasis, instead of chain and staggered intermittent welding.

Ch 12, Sec 1, [2.3.4]

Replace the firstparagraph of requirement [2.3.4]by:

The minimum throat thickness of fillet weld T connectionsis to be obtained, in mm, from the following formula:

Insert the followingparagraphs afterthe sentence For continuous filletwelds, p/d is to be taken equalto 1.:

A lower value of the minimum throat thickness may beaccepted on a case by case basis depending on the resultsof structural analyses.

The maximum throat thickness of fillet weld T connectionsis equal to, in mm:

tT = 0,7 t

Ch 12, Sec 1, [3]

Add the followingsub-article [3.7]:

3.7 Pillars connection

3.7.1 For pillars in tension, the maximum allowable tensilestress in welds is 50/k N/mm, where k is the greatest mate-rial factor of the welded elements and the filler metal.

Ch 12, Sec 1, [6.3.3]

Replace the fourth paragraph of requirement [6.3.3]by:

For ships where B + D 15 m, only one radiography foreach of the above items is required.

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Part B


Ch 12, Sec 2, [2.5.1]

Replace the service notation bulk carrier ESP by bulk carrierorbulk carrier ESP inthe firstpar-agraphof requirement [2.5.1].


Replace the service notation bulk carrier ESP by bulk carrierorbulk carrier ESP in the firstcol-

umn of Table 1.

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Part C


8) The maximum allowable tolerances for wall thick-ness of floats is not to exceed 10% of thickness.

9) The inner and the outer chambers of an automaticair pipe head is to be of a minimum thickness of6 mm.

10) Casings of air pipe closing devices are to be ofapproved metallic materials adequately protectedagainst corrosion.

11) For galvanised steel air pipe heads, the zinc coatingis to be applied by the hot method and the thicknessis to be 70 to 100 microns.

12) For areas of the head susceptible to erosion (e.g.those parts directly subjected to ballast water impactwhen the tank is being pressed up, for example theinner chamber area above the air pipe, plus an over-lap of 10 or more either side), an additional hardercoating is to be applied. This is to be an aluminium

bearing epoxy, or other equivalent, coating, appliedover the zinc.

13) Closures and seats made of non-metallic materialsare to be compatible with the media intended to becarried in the tank and to seawater and suitable foroperating at ambient temperatures between 25Cand +85C.

Ch 1, Sec 10, [20.2]


20.2.2 Type tests of air pipe closing appliances

a) Testing of air pipe automatic closing devices

Each type and size of air pipe automatic closing deviceis to be surveyed and type tested at the manufacturersworks or a recognized laboratory accepted by the Soci-ety. The test requirements for an air pipe automatic clos-ing device are to include the following:

1) Determination of the flow characteristics

The flow characteristics of the air pipe closingdevice are to be determined.

Measuring of the pressure drop versus rate of vol-ume flow is to be carried out using water and withany intended flame or insect screens in place.

2) Tightness test during immersion/emerging in water

An automatic closing device is to be subjected to aseries of tightness tests involving not less than twoimmersion cycles under each of the following con-ditions:

The automatic closing device is to be submergedslightly below the water surface at a velocity ofapproximately 4 m/min. and then returned to the

original position immediately. The quantity ofleakage is to be recorded.

The automatic closing device is to be submergedto a point slightly below the surface of the water.The submerging velocity is to be approximately8 m/min and the air pipe vent head is to remainsubmerged for not less than 5 minutes. Thequantity of leakage is to be recorded.

Each of the above tightness tests is to be carriedout in the normal position as well as at an incli-nation of 40.

The maximum allowable leakage per cycle is not toexceed 2 ml/mm of nominal diameter of inlet pipeduring any individual test.

b) Testing of non-metallic floats

Impact and compression loading tests are to be carriedout on the floats before and after pre-conditioning, asper Tab 37.

1) Impact test

The impact test may be conducted on a pendulumtype testing machine. The floats are to be subjectedto 5 impacts of 2,5 Nm each and are not to sufferpermanent deformation, cracking or surface deterio-ration at this impact loading.

Subsequently the floats are to be subjected to5 impacts of 25 Nm each. At this impact energylevel, some localised surface damage at the impactpoint may occur. No permanent deformation orcracking of the floats is to appear.

2) Compression loading test

Compression tests are to be conducted with thefloats mounted on a supporting ring of a diameterand bearing area corresponding to those of the floatseating with which the tested float is intended to beused. For ball type float, loads are to be appliedthrough a concave cap of the same internal radius asthe test float and bearing on an area of the samediameter as the seating. For a disc type float, loadsare to be applied through a disc of equal diameter asthe float.

A load of 350 kg is to be applied over one minuteand maintained for 60 minutes. The deflection is tobe measured at intervals of 10 minutes after attach-ment of the full load. The record of deflectionagainst time is to show no continuing increase indeflection and, after release of the load, there is tobe no permanent deflection.

c) Testing of metallic floats

Tests are to be conducted in accordance with item b) 1)above. The tests are to be carried out at room tempera-ture and in the dry condition.

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Part C


Ch 1, Sec 10

Replace Table 37by:

T1 : Table 37 : Pre-conditioning of floats

Ch 1, Sec 11, [1.2.2]

Delete the 3rd itemof the bulleted list.

Ch 1, Sec 11, [3.1]


3.1.1 General

In addition to the provisions of Article [2], ships equippedwith two or more aft rudders are to comply with the provi-sions of the present Article.

Ch 1, Sec 11

Delete the cross-references to requirements of Pt D, Ch 20, Sec 4 in requirements [1.3.9], [2.6.1] a),[2.6.3], [3.1.3], [4.1.1], [4.2.1]and [4.2.2].

Ch 1, Sec 15, [3.13.2]

Delete cross-reference andPt D, Ch 20, Sec 4, [24.4] at the end of itema).

CHAPTER 2

Ch 2, Sec 3, [9.6.2]

Replace itema)by:

a) Cables being of a fire resistant type complying with IEC60331 are to be installed and run continuous to keepthe fire integrity within the high fire risk area (see Fig 4)

Note 1: The application of this requirement for public spaces con-

taining furniture and furnishings of other than restricted fire riskand having a deck area of 50 m2 or more will be considered onthe case by case basis.

Test conditionTest temperature

25C +20C +85C

Dry + + +

After immerging in water + + +

After immerging in fuel oil +

Note 1: Immerging in water and fuel oil is to be for at least48 hours.

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Part C


Ch 2, Sec 3, [10.1.7]

Delete the content between brackets at the end ofthe last itemof the bulleted list.


Replace rows6and 8 in Table 1 by:

T2 : Table 1 : Tests to be carried out on electrical rotating machines

Delete tablefootnotes (4)and (6) in the footof Table 1.

Ch 2, Sec 4, [4.5.1]

Add the followingcontentbetween brackets at the end of requirement [4.5.1]:

(see indirect methods in Ch 2, App 1 for synchronousmachines and in Ch 2, App 2 for induction machines).


Replace row3 in Table2by:

T3 :Table 2 : Tests to be carried out on transformers

Chapter 2

Add the followingAppendix 2:

N Testsa.c. Generators Motors

Type test (1) Routine test (2) Type test (1) Routine test (2)

6 Overload/overcurrent test X X

8 Overspeed test X X X X

N Tests Type test (1) Routine test (2)

3 Short circuit impedance test X X

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Pt C, Ch 2, App 2


APPENDIX 2 INDIRECT TEST METHOD FOR INDUCTIONMACHINES (STATIC TORQUE METHOD)

1 General

1.1 Test method

1.1.1 The induction machine is to be subject to the threeseparate tests specified in Tab 1 when it is completelyassembled (with covers, heat exchangers, all controldevices and sensors).

1.1.2 Temperature measurements of the stator winding isbased on the use of embedded temperature sensors. Thestator temperature taken into account for the temperaturerise is the average of all sensors values.

The following parameters are recorded, every 1/2 hour:

temperature sensors as well as the stator current andvoltage

bearing temperatures (embedded sensor or thermome-ter), and the condition of cooling of the bearings, whichare to be compared to those expected on board.

1.1.3 The tests described in Tab 1 allow the determinationof the final temperature rise of stator windings with anacceptable degree of accuracy.

The stator temperature rise tstator is the average of embed-

ded temperature sensors values minus cooling element tem-perature:

tstator = 12 + 3

where:

1 : Stator temperature rise of Test 1 defined in Tab 1

2 : Stator temperature rise of Test 2 defined in Tab 1

3 : Stator temperature rise of Test 3 defined in Tab 1.

Table 1 : Tests for induction machines

Figure 1 : Heating Test 1

Test 1 Test 2 Test 3

Rotor locked (see Fig 1), machine ventilated innormal condition with stator supplied by ratedcurrent at reduced voltage and frequency

Rotor running at no-load with stator sup-plied at the same voltage and frequencyas Test 1

Rotor running at no-load at rated speedwith stator supplied at rated voltage andrated frequency

R e c t i f i e r

T r a n s f o r m e r I n v e r t e r

M o t o r u n d e r t e s t

( l o c k e d r o t o r )

N e t w o r k s u p p l y i n g

l o w p o w e r

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Part C


CHAPTER 3

Ch 3, Sec 1, [1.3.1]

Add the following items at the end ofthe bulleted list:

Quality plan for software: a plan for software lifecycleactivities is to be produced which defines relevant pro-cedures, responsibilities and system documentation,including configuration management.

Inspection of components (only hardware) from sub-suppliers: proof that components and/or sub-assembliesconform to specification.

Quality control in production: evidence of quality assur-ance measures on production.

Final test reports: reports from testing of the finishedproduct and documentation of the test results.

Traceability of software: modification of program con-

tents and data as well as change of version are to be car-ried out in accordance with a procedure and are to bedocumented.

Software description: software is to be described, e.g.:

- description of the basic and communication soft-ware installed in each hardware unit

- description of application software (not program list-ings)

- description of functions, performance, constraintsand dependencies between modules or other com-ponents.

Hardware description:

- system block diagram, showing the arrangement,input and output devices and interconnections

- connection diagrams

- details of input and output devices

- details of power supplies.

Failure analysis for safety related functions only (e.g.FMEA): the analysis is to be carried out using appropri-ate means, e.g.:

- fault tree analysis

- risk analysis

- FMEA or FMECA.The purpose is to demonstrate that for single failures,systems will fail to safety and that systems in operationwill not be lost or degraded beyond acceptable perform-ance criteria when specified by the Society.

Ch 3, Sec 1

Replace Table2by:

T1 : Table 2 : Computer based system documentation

N I/A (1) Documentation (2)

1 I System description, computer software: see [2.3.2]

2 A System description, computer hardware: see [2.3.3]

3 I System reliability analysis: see [2.3.4]

4 I User interface description: see [2.3.5]

5 I Test programs: see [2.3.6]

6 I Method of tests and required tests results (3)

7 A For wireless data communication:

a) details of manufacturers recommended installation and maintenance practices

b) network plan with arrangement and type of antennas and identification of location

c) specification of wireless communication system protocols and management functions; see Ch 3, Sec 3,[4.6.3]

d) details of radio frequency and power levels

e) evidence of type testing in accordance with Ch 3, Sec 6

f) on-board test schedule; see Ch 3, Sec 6, [4].

(1) A = to be submitted for approval

I = to be submitted for information.

(2) For the evaluation computer based systems of categories II and II I.

(3) For systems of category III.

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Part C


Ch 3, Sec 1, [2.4]


2.4.2 Modifications

Modifications are to be documented by the manufacturer.

Subsequent significant modifications to the software andhardware for systems of categories II and III are to be sub-mitted for approval.

Note 1: A significant modification is a modification which influ-ences the functionality and/or the safety of the system.

Ch 3, Sec 3, [1.1]

Add the followingrequirements [1.1.4] and [1.1.5]:

1.1.4 Programmable electronic systems are to fulfil therequirements of the system under control for all normallyanticipated operating conditions, taking into account dan-

ger to persons, environmental impact, damage to ship aswell as equipment, usability of programmable electronicsystems and operability of non computer devices and sys-tems, etc.

1.1.5 When an alternative design or arrangements deviat-ing from these requirements are proposed, an engineering

analysis is required to be carried out in accordance with a

relevant International or National Standard acceptable to

the Society. See also SOLAS Ch II-1/F, Reg. 55.

Note 1: As a failure of a category III system may lead to an acci-

dent with catastrophic severity, the use of unconventional technol-

ogy for such applications is only to be permitted exceptionally in

cases where evidence is presented that demonstrates acceptable

and reliable system performance to the satisfaction of the Society.

Ch 3, Sec 3, [1]

Add the followingsub-article[1.7]:

1.7 System categories

1.7.1 Programmable electronic systems are to be assignedinto three system categories as shown in Tab 1 according tothe possible extent of the damage caused by a single failurewithin the programmable electronic systems.

Consideration is to be given to the extent of the damagedirectly caused by a failure, but not to any consequentialdamage.

Identical redundancy is not to be taken into account for theassignment of a system category.

1.7.2 The assignment of a programmable electronic system

to the appropriate system category is to be made accordingto the greatest likely extent of direct damage. For examples,see Tab 2.

Note 1: Where independent effective backup or other means ofaverting danger is provided, the system category III may bedecreased by one category.

Ch 3, Sec 3

Add the followingTable 1:

T2 : Table 1 : System categories

Category Effect System functionality

I Those systems, failure of which will not lead to danger-ous situations for human safety, safety of the ship and/orthreat to the environment

Monitoring function for informational/administrativetasks

II Those systems, failure of which could eventually lead todangerous situations for human safety, safety of the shipand/or threat to the environment

Alarm and monitoring functions

Control functions which are necessary to maintain theship in its normal operational and habitable conditions

III Those systems, failure of which could immediately lead

to dangerous situations for human safety, safety of theship and/or threat to the environment

Control functions for maintaining the ship propulsion

and steering Safety functions

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Part C


Ch 3, Sec 3, [4.3.1]


4.3.1 The transmission software is to be so designed thatalarm or control data have priority over any other data, and

overloading is prevented. For control data, the transmissiontime is not to jeopardise efficiency of the functions.

Ch 3, Sec 3, [4]

Add the followingsub-articles[4.6]and [4.7]:

4.6 Additional requirements for wireless

data links

4.6.1 These requirements are in addition to the require-ments of [4.1] to [4.4] and apply to system category II using

wireless data communication links to transfer data betweendistributed programmable electronic equipment or systems.For system category III, the use of wireless data communica-tion links is to be in accordance with [1.1.5].

4.6.2 Functions that are required to operate continuouslyto provide essential services dependant on wireless datacommunication links are to have an alternative means ofcontrol that can be brought in action within an acceptableperiod of time.

4.6.3 Wireless data communication is to employ recog-nised international wireless communication system proto-cols that incorporate the following:

a) Message integrity: fault prevention, detection, diagnosis,

and correction so that the received message is not cor-rupted or altered when compared to the transmittedmessage

b) Configuration and device authentication: shall only per-mit connection of devices that are included in the sys-tem design

c) Message encryption: protection of the confidentialityand or criticality the data content

d) Security management: protection of network assets, pre-vention of unauthorised access to network assets.

4.6.4 The wireless system is to comply with the radio fre-quency and power level requirements of International Tele-communications Union and flag state requirements.

Note 1: Consideration should be given to system operation in theevent of port state and local regulations that pertain to the use ofradio-frequency transmission prohibiting the operation of a wire-less data communication link due to frequency and power levelrestrictions.

4.7 Protection against modifications

4.7.1 Programmable electronic systems of categories IIand III are to be protected against program modification by

the user.4.7.2 For systems of category III, modifications of parame-ters by the manufacturer are to be approved by the Society.

4.7.3 Any modifications made after performance of thetests witnessed by the Society as per item No. 6. of Ch 3,Sec 6, Tab C are to be documented and traceable.

Ch 3, Sec 6, [2.3]

Replace requirements [2.3.1]and [2.3.2] by:

2.3.1 Software of computer based systems are to beapproved in accordance with the related system category,as defined in Ch 3, Sec 3, [1.7].

Type approval consists of an assessment of the developmentquality and verification of test evidences, according toTab C.

2.3.2 Software is to be approved in association with hard-ware. References of software and hardware are to be speci-fied in the type approval certificate.

Ch 3, Sec 6, [2.3]


2.3.4 In case of separate approval of software, an assess-

ment certificate may be issued, at the request of the manu-facturer, based on the requirements of the appropriatesystem category.

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Part C


Ch 3, Sec 6

Add the followingTable C:

T4 :Table C : Tests and evidences according to the system category

Ch 3, Sec 6, [3]

Insert the following sub-article [3.2]:

3.2 Tests and evidences

3.2.1 Tests and evidence are to be in accordance withTab C. Definitions and notes relating to Tab C are given inCh 3, Sec 1, [1.3.1].


Replace the firstrow of Table 2by:

No. Tests and evidenceSystem category (1)

I II III

1. Evidence of qualitysystem

Quality plan for software M M

Inspection of components (only hardware) from sub-suppliers M M

Quality control in production M M

Final test reports M M S

Traceability of software M M S

2. Hardware and softwaredescription

Software description M S

Hardware description M S

Failure analysis for safety related functions only S

3. Evidences of software

testing

Evidences of software testing according to quality plan M S

Analysis regarding existence and fulfilment of programming pro-cedures for safety related functions

S

4. Hardware tests Tests according to Tab 1 M S/W S/W

5. Software tests Module tests M S

Subsystem tests M S

System test M S

6. Performance tests Integration test M W

Fault simulation W W

Factory Acceptance test (FAT) M W W

7. On-Board test Complete system test M W W

Integration test W W

Operation of wireless equipment to demonstrate electromagneticcompatibility

W W*

8. Modifications Tests after modifications M S/W S/W

(1) M : Evidence kept by manufacturer and submitted on request

S : Evidence checked by the Society

W : To be witnessed by the Society

* : The level of witnessing is to be determined during the assessment required by Ch 3, Sec 3, [1.1.5].

Equipment Nature of tests

Electronicequipment

Main hardware and software functionalitieswith all systems integrated

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Part C


Ch 3, Sec 6, [3.2]

Switch requirements [3.2.1]and [3.2.2] in the existingsub-article[3.2].

Ch 3, Sec 6, [3.3]

Replace the existingrequirements [3.3.2] and [3.3.3] by the followingrequirements [3.3.2] to [3.3.8]:

3.3.2 The software modules of the application software areto be tested individually and subsequently subjected to anintegration test. The test results are to be documented and tobe part of the final file. It is to be checked that:

the development work has been carried out in accord-ance with the plan

the documentation includes the method of testing, thetest programs producing, the simulation, the acceptance

criteria and the result.Software module tests are to provide evidence that eachmodule performs its intended function and does not per-form unintended functions.

Subsystem testing is to verify that modules interact correctlyto perform the intended functions and do not perform unin-tended functions.

System testing is to verify that subsystems interact correctlyto perform the functions in accordance with specifiedrequirements and do not perform unintended functions.

Repetition tests may be required to verify the consistency oftest results.

3.3.3 Analysis regarding existence and fulfilment ofprogramming procedures for safety relatedfunctions

Specific assurance methods are to be planned for verifica-tion and validation of satisfaction of requirements, e.g.:

diverse programs

program analysis and testing to detect formal errors anddiscrepancies to the description

simple structure.

3.3.4 The Society may ask for additional tests of systemswhich are part of safety systems or which integrate severalfunctions.

3.3.5 Integration tests

Programmable electronic system integration testing is to becarried out using satisfactorily tested system software and,as far as practicable, intended system components.

3.3.6 Fault simulation

Faults are to be simulated as realistically as possible to dem-onstrate appropriate system fault detection and systemresponse. The results of any required failure analysis are tobe observed.

3.3.7 Factory acceptance test (FAT)

Factory acceptance testing is be carried out in accordancewith a test program accepted by the Society. Testing is to bebased on demonstrating that the system fulfils the require-ments specified by the Society.

3.3.8 Modifications

Modifications to approved systems are to be notified inadvance and carried out to the Societys satisfaction. Referto Ch 3, Sec 1, [2.4.2].

Ch 3, Sec 6, [4.1]


4.1.1 Testing is to be performed on the completed systemcomprising actual hardware components with the finalapplication software, in accordance with an approved testprogram.

Ch 3, Sec 6, [4.1.1]

Insert the followingparagraph after the firstparagraph of the existingrequirement [4.1.1]:

On board testing is to verify that correct functionality hasbeen achieved with all systems integrated.

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Part C


Ch 3, Sec 6, [4.1]

Add the followingrequirement [4.1.2] afterthe existingrequirement [4.1.1]:

4.1.2 For wireless data communication equipment, testsduring harbour and sea trials are to be conducted to dem-

onstrate that radio-frequency transmission does not causefailure of any equipment and does not itself fail as a result ofelectromagnetic interference during expected operatingconditions.

Note 1: Where electromagnetic interference caused by wirelessdata communication equipment is found to be causing failure ofequipment required for Category II or III systems, the layout and/orequipment are/is to be changed to prevent further failures occur-ring.

CHAPTER 4

Ch 4, Sec 2, [2.1.1]

Add the followingparagraphat the end of itemb):

These requirements do not apply to closed recirculatingsystems within a single space.

Ch 4, Sec 6, [4.1.2]

Add the followingparagraphand Note at the end of itemb):

Transfer pumps may be placed outside this room.Note 1: Lubricating oil systems part of the main machinery may be

located in the main engine room in location ventilated byextraction.

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Part D


Amendments to PART D

Chapter 4

Replace Section 1, Section 2 and Section 3of Chapter4by the following ones:

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Pt D, Ch 4, Sec 1


SECTION 1 GENERAL

1 General

1.1 Application

1.1.1 Ships complying with the requirements of this Chap-ter are eligible for the assignment of one of the service nota-tions bulk carrier ESP, bulk carrier CSR ESP, bulk carrierCSR BC-A ESP, bulk carrier CSR BC-B ESP, bulk carrierCSR BC-C ESP or bulk carrier as defined in Pt A, Ch 1, Sec2, [4.3.2] and Pt A, Ch 1, Sec 2, [4.3.1].

1.1.2 Ships dealt with in this Chapter, which are greater

than 500 GT and have one of the service notations bulk car-rier CSR ESP, bulk carrier CSR BC-A ESP, bulk carrier CSRBC-B ESP or bulk carrier CSR BC-C ESP, are to comply withthe requirements of:

Part A, Part B and Part C of the present Rules, as appli-cable

NR522 Common Structural Rules for Bulk Carriers

Ch 4, Sec 2, [3], which gives specific access

4708.16.RSS_Amd_2012-01

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