Iranian Classification Society Rules

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CONTENTS

CHAPTER 1 CLASSIFICATION 1

Section Section Section Section Section Section Section Section

1 General 1

2 Character of Classification 2

3 Classification Survey during Construction 3

4 Classification Survey after Construction 6

5 Certificates and Reports 13

7 Cooperation Duties of Owners 13

8 Competence and Duties of Surveyors 14

9 Suspension/Withdrawal of Class and Reclassification 15

Section 13

Classification of Other Installations or Equipment 15

CHAPTER 2 PERIODICAL AND OTHER SURVEYS 17

Section Section Section Section

1 General 17

2 Annual Survey 19

3 Intermediate Survey 21

4 Special Survey(Hull, Equipment and Fire-extinguishing Appliances) 23

Section 5-1

Section 5-2

Special Survey(Machinery, Electrical Installations and Additional Installations) ··· 24 Special Survey(Additional Requirements to Ship Types) 25

Section Section Section Section

6 Docking Survey 26

7 Surveys of Propeller Shaft and Stern Tube Shaft, Etc 27

8 Boiler Survey 28

9 Continuous Survey of Machinery 29

Section 10

Section 11

Section 12

Section 14

Section 15

Section 16

Section 18

Occasional Survey 32

Alteration Survey 32

Survey of Ships Carrying Dangerous Goods and Other Special Cargoes ··· 32 Hull Surveys for General Dry Cargo Ships 33

Hull Surveys for Liquefied Gas Carriers 34

Survey Requirements for Shell and Inner Doors, Etc. of RoRo Ships 34

Special Requirements for Ships Subject to Korean Ship Safety Act

or Fishing Vessels Act 35

CHAPTER 3 HULL SURVEYS OF SHIPS SUBJECT TO THE ENHANCED

SURVEY PROGRAMME 37

Section Section Section Section Section Section

1 General 37

2 Bulk Carriers 38

3 Oil Tankers 40

4 Chemical Tankers 41

5 Double Hull Oil Tankers 42

6 Double Skin Bulk Carriers 43

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<ANNEX>

Annex 1-1

Annex 1-2

Annex 1-3

Annex 1-4

Annex 1-5

Annex 1-6

Annex 1-7

Annex 1-8

Annex 1-9

Character of Classification 45

Guidance for Intact Stability 73

Example of the Survey Programme and

the Survey Planning Questionnaire 98

Owners Inspection Report 121

Thickness Measurement Method for Hull Structural Members 122

Areas of Close-up Survey, etc 202

Continuous Machinery Survey Procedure(CMS) 213

Planned Maintenance System Procedure(PMS) 223

Guidance for Survey of Waterjet Propulsion Systems and Azimuth

or Rotatable Thruster 228

Annex 1-10 Loading Instrument on Stability 229

Annex 1-11 Procedural Requirements for Service Suppliers 232

Annex 1-12 Hull Survey for Classification Survey during Construction 239

Annex 1-13 Owner's Hull Inspection and Maintenance Program 272

Annex 1-14 Examples of Typical Bow, Inner, Side Shell and Stern Doors 274

Annex 1-15 Requirements for CLEAN Notation 290

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Pt 1 Classification and Surveys

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CHAPTER 1 CLASSIFICATION

Section 1 General

Tests and Inspections specified in the Rules of the Society are to be carried out under attendance of the Surveyor, unless expressly specified otherwise.

104. Equivalence

In application to 104. of the Rules, the term "deemed to isfaction to the Society" includes the following cases.

be equivalent to the Rules to the sat-

(1) Where etc.).

(2) Where

(3) Where

complying with a standard deemed appropriate by the Society(ISO, KS, ASME, JIS,

approved in accordance with Guidance for Approval of Risk-based Ship Design. having proven service experience deemed appropriate by the Society. For the purposes of

this paragraph, proven in-service experience means having a service record of

performance without any damage for sufficient period.

maintaining the

105. Novel features In application to

apply to validity to the Society.

105. of the Rules, Guidance for Approval of Risk-based Ship Design may verification of experiments, calculations or other supporting information provided

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Section 2 Character of Classification

201. Class notations

1. The definitions of terms specified in 201. (2) to (4) of the Rules are as follows. If the following definition are expressly provided by the flag administration, they are to follow the provided definition.

(A)Coastal service area : Water area within 20 Nautical miles(1 Nautical mile = 1852 m ) of the shore

(B) Smooth water service area : Water area within lakes, rivers and harbours

2. Upon the request of the applicant(i.e., the Owner or the Builder), character of class including class notations shall be assigned to ships which have been built to comply with the corresponding re- quirements of the Rules. In addition to 201. (7) of the Rules, the Special Feature Notation such as designated cargo or purpose, etc. may be appended at the request of the Owner when considered appropriate by the Society.

3. Regulations in 201. (3) of the Rules apply to ships having main propulsion machinery.

4. In applications to 201. (2) to (4) of the Rules, the following service restriction notations of hull, machinery and equipment shall be applied.

(1) Service restriction notations of hull

KRS 0 : Ships which have been built to comply with the following requirements for a limited service(i.e., coastal or smooth water service)

(A) Requirements specified

(B) Requirements specified

Steel Barges

in Pt 3, Ch 1, 201. (1) of the Guidance

in Ch 23, 202. or 302. of the Rules for the Classification of

in Pt 10, Ch 1, 201. 1 (1) to (3) and 2 (1) to (3) of the Guidance

(2) Service restriction notations of machinery

KRM 0 : Ships which have been built to comply with the following requirements for a limited service

(A) Requirements specified in Pt

(B) Requirements specified in Pt

5, Ch 3, 203. and 204. 2 of the Guidance

6, Ch 1, 101. 1 (4) and (5) of the Guidance

(3) Service restriction notations of equipment

For ships which have been built to comply with the following requirements for a limited serv-

ice(i.e., coastal or smooth water service), the notation of "C" or "S" shall be appended to the

character of hull and/or machinery.

(A) C : Notation for coastal service

(a) Hull equipment

(i) Requirements specified in

(ii) Requirements specified in

Pt 3, Ch 1, 201. (2) and (3) of the Guidance

Pt 10, Ch 1, 201. 1 (4) and (5) of the Guidance

(iii) Requirements specified in Ch 23, 203. of the Rules for the Classification of

Steel Barges

(b) Machinery equipment

(i) Requirements specified in Pt 5, Ch 1, 401. 1 / Pt 8, Annex 8-3, 1 (3) (C) (b) / Pt

5, Ch 6, 702. 2 (2), 802. 1 (2), 804. 1 (2) and 2 (1), 903. 1 (1) and (3) / Pt 5,

Ch 7, 204. 1 (2), 206. 1 (2), 207. 2 (2), 209. 2 (2), 301. 6 (2) and Pt 5, Ch 8, 101.

1 (1) of the Guidance

(B) S : Notation for smooth water service

(a) Hull equipment

(i) Requirements specified in Pt 3, Ch 1, 201. (2), (3) and Pt 4, Ch 8, 101. 1 of the

Guidance

(ii) Requirements specified in Pt 10, Ch 1, 201. 2 (4) to (7) of the Guidance

(iii) Requirements specified in Ch 23, 303., 304., 305. and 306. of the Rules for the Classification of Steel Barges

(b) Machinery equipment

(i) Requirements specified in Pt 5, Ch 1, 401. 1 / Pt 5, Ch 6, 702. 2 (1), 802. 1

(1), 901. 5 (2), 903. 1 (1) / Pt 5, Ch 7, 201. 1, 409. and Pt 5, Ch 8, 101. 1

(1) of the Guidance

(ii) Requirements specified in Ch 23, 307. of the Rules for the Classification of Steel Barges

5. The details for ship type, special feature notations and additional installations notations of class no- tations are given in Annex 1-1 of the Guidance.

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Section 3

301. Classification Survey

Classification Survey during Construction

during Construction

The hull survey for Classification Survey during Construction for ships subject to Annex 1-12 is to be in accordance with Annex 1-12.

302. Approval of plans

1. The following contents shall be described in the drawings submitted to the Society for approval:

(1) Midship section

(A) Scantling draught( ) or length of ship( ) corresponding to , where 300 mm

(is to be also indicated in other Key plans).

(B) Kind of Freeboard to be assigned(is to be also indicated in other plans relating to the con- ditions of freeboard assignment).

(D) Draught in meter corresponding to designed timber freeboard, where timber load line is in- tended to be marked.

(E) Deck load(KN m ) in ships carrying deck cargoes(including timbers).

(F) Loading condition(specific gravity, etc.) in bulk carriers.

(G) Length of ship(L) specified in Pt 3, Ch 1, 102. of the Rules.

(2) Construction profile and deck plans

and the points of fore/after end of or 0.25 from the fore end of

(3) Shell expansion

Comparison table between the standard sheer and actual sheer on the exposed deck(in case that

exposed freeboard or superstructure deck has a well formed by bulwarks and end bulkheads of superstructure).

(4) Arrangements of scuppers

(A) Lines of 0.01 and 0.02 above the summer load line

(B) Line of 600 mm above the summer load line

2. Omission and addition of plans and documents to be submitted

(1) Submission of the plans and documents may be omitted in case where a sister ship is intended to be built. Where the omission is desired, the following plans in triplicate are to be submitted,

together with a written request format. A sister-ship means a ship intended to be built by same builder, based on the plans and documents approved for other ships and regarded as same or similar by the Society.

(A) General arrangement

(B) Midship section

(D) Shell expansion

(E) Machinery arrangement of machinery space

(F) Shafting arrangement

(G) Machinery room piping diagram

(H) Electrical power diagram

(I) Revised plans for revision of original plans and corresponding original plans

(J) Revised plans where applicable requirements of the Rules are changed

(2) In application to (1), (I) and (J), calculation sheets are to be submitted, additionally. Where

the the

the

omission of plans is accepted by the Society, the omitted plans shall be regarded as the same that approved for other ships.

(3) In case of other than (1), the submission of the plans and documents may be omitted also in

accordance with (1) and (2) where it is desired to build the vessels based on the plans and documents which are already approved by the Society.

(4) Additional copies of the plans and documents may be required where the required attendance of the Surveyor is anticipated at more than one location.

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3. Re-examination of plans in cases where freeboard is to be altered

Reassignment of a smaller freeboard, other than that corresponding to the designed draught( ) may be desired due to allowance of the form freeboard found as a result of freeboard calculation. In such case, application for the intended draught( ) is to be submitted to the Society with the fol- lowing documents specifying the intended accompanied by calculation sheets on strength of hull members and on longitudinal hull strength for the desired as early as practicable.

(1) Where ≤ 300 m m :

Where	≥	, this requirement may be ignored
(2) Where		300 m m :

Application for re-examination of plans and documents for the increase of draught

(3) In case of above (2), the length of ship corresponding to is to be specified in the applica- tion for re-examination of plans and documents. In this case, key plans specifying the revised principal dimensions are to be re-submitted.

(4) The equipment number and the equipment are to comply with the requirements specified in Pt

4. 4, Ch 8 of the Guidance.

Examination and test plans

The shipbuilder is to submit the examination and test plans including the followings to the Surveyor prior to the relevant examination and test.

(1) Inspection and Test Plan(ITP)

(2) proposals for the examination of completed steelwork - generally referred to as the block plan

and are to include details of joining blocks together at the pre-erection and erection stages or at other relevant stages

(3) proposals for fit up examinations where necessary

(4) proposals for testing of the structure(leak and hydrostatic) as well as for all watertight and weathertight closing appliances

(5) proposals for non-destructive examination

(6) Procedure of stability experiment

(7) Procedure of Sea Trial

(8) The coating work specification and quality control scheme(including inspection of surface prepa-

ration and coating processes for ships with PSPC notation)

(9) Proposals for the examination of cargo handling appliances(where applicable)

(10) Onboard Test Procedure

304. Machinery installation

In application to 304. of the Rules, the term "considered necessary by the Society" means the re- quirements specified in Pt 6, Ch 2, 301. 1 and 2 of the Rules. (for CMA Ships or UMA Ships as defined in Pt 9, the requirements specified in Pt 9, Ch 3, 203. of the Rules are to be applied)

306. Tests

In application to 306. of the Rules, the term "considered necessary tests" means the tests specified in Pt 6, Ch 2, 302. and 303. of the Rules. (for CMA Ships or UMA Ships as defined in Pt 9,

the requirements specified in Pt 9, Ch 3, 204. and 205. of the Rules are to be applied)

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307. Stability experiments

1. In application to 307. 1 of the Rules, the requirements shall not apply to the following ships not engaged on international voyage and less than 24 meters in length.

(1) Tug boat, Salvage, Dredger or Survey ship

(2) Steel barges

(3) Ships other than passenger ships or car ferries operating in water area within harbours

(4) Floating structures used for the storage in bulk of oil or waste etc.

(5) Floating structures used for the storage in bulk of dangerous goods

2. Stability experiments stated in the Rules mean inclining experiments and rolling

lakes, rivers and

tests. Where the

rolling period could be calculated in accordance with the formula specified in Annex 1-2 of the Guidance, the rolling tests may be dispensed with except those specially required by the Society.

3. The requirements for intact stability shall be given in Annex 1-2 of the Guidance.

4. Where a loading instrument is installed onboard according to requirement in 307. 2 of the Rules, the approval and survey procedures are given in Annex 1-10 of the Guidance.

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Section 4 Classification Survey after Construction

401. Classification Survey after Construction

1. For ships intended to register with the Society, where it is deemed necessary to do a preliminary survey, due to the age and status of the ships, the preliminary survey is to be carried out prior to the commencement of the Classification Survey. The Classification Survey shall be carried out based on the results of the preliminary survey. In such case, certain survey items may be specially required by the Society.

2. In application to necessary, are to

401. of the Rules, parts of hull, machinery, outfittings and equipment which, if be measured for actual scantlings are those necessary for record of particulars on

hull and machinery of ship in review of register data.

3. In application to 401. of the Rules, "as required for the Special Survey" means to carry out the relevant survey of Special Survey including thickness measurements, Docking Survey, Surveys of Propeller Shaft and Stern Tube Shaft, Etc., Boiler Survey of which is to be based on the age and type of the vessel.

4. The Society may request further examinations, tests and measurements, including but not limited to material testing, non-destructive testing, hydraulic and hydrostatic tests and sea trial.

5. Where the vessel has, during any portion of the five years prior to the request for classification be- ing received, been previously classed by:

(1) the Society, or

(2) a Society subject to verification of compliance with QSCS(Quality System Certification Scheme) of IACS at the time it classed the vessel

then survey requirements may be specially considered but are not to be less than those required by

403. of the Guidance.

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402. Submission of plans

1. For the Classification Survey after Construction, the following plans and documents are to be sub- mitted to the Society well in advance. Where deemed necessary by the Society, the list of plans

and documents other than those specified below are to be notified to the owner and

be submitted to the Society.

(1) Hull : 3 copies(2 copies for (J), (K), (O) and (P))

(A) General arrangement

(B) Midship section

(D) Shell expansion

(E) Transverse bulkheads

(F) Rudder and rudder stock construction

(G) Stern frame

(H) Hatches and hatch-closing arrangements(when hatch covers are provided)

(I) Capacity plan

(J) Loading manual(when loading manual is required)

(K) Loading instrument test report(when loading instrument is required)

(L) Lines(where freeboard assignment is required)

(M) Hydrostatic curves

(N) Lumber storage plan(where assignment of timber freeboard is required)

(O) Stability information booklet

(P) Damage stability calculation(where required)

(2) Machinery : 3 copies

(A) Machinery arrangement of machinery space

(B) Shafting arrangement

(D) Power transmission systems, intermediate shaft, thrust shaft and propeller shaft

(E) Propeller

(F) Piping diagram

there are to

(G) Main engine, propulsion gears and clutch systems(or manufacturer make, model and information)

rating

(H) Steering gear system piping and arrangements and steering gear manufacturer make and

model information

(I) For steam turbine vessels, main boilers, superheaters and economisers(or manufacturer make,

model and rating information) and steam piping

(J) For vessels less than two(2) years old, torsional vibration calculations are to be submitted

(K) Additional plans required for UMA-ship

- Instrument and alarm list

- Fire alarm system

- List of automatic safety functions(e.g. slowdowns, shutdowns, etc.)

- Function testing plan

(3) For vessels with ice class notation, plans for flexible couplings and/or torque limiting shafting devices in the propulsion line shafting(or manufacturer make, model and rating information) are to be submitted.

(4) For oil tankers, pumping arrangement at the forward and after ends and drainage of cofferdams and pump rooms are to be submitted.

(5) Plans required in Flag Administration or Convention(where applicable) : 3 copies

(6) Others

(A) A copy of survey reports(including Ship's Particulars and Initial Records)

(B) Copies of Classification Certificate, Statutory Certificate and Certificate of Registry

2. In case that the plans and documents considered equivalent to those specified in Par 1 are sub- mitted, they may be accepted at the discretion of the Society.

3. Notice of review results of plans and documents

Where examination of plans and documents specified in Par 1 above, is made by the Society, applicant will be notified of the results. In cases where insufficient information accompanies submitted plans and documents, the Society may require onboard inspection.

the the

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403. Classification Survey of ships classed by other classes

When a ship holding class with any Society which is subject to verification of compliance with QSCS(Quality System Certification Scheme) of IACS is intended for classification, plans and docu- ments to be submitted and items to be surveyed etc., are listed as below. Where deemed necessary

by the Society, the list of plans and documents other than those specified below are to to the Owner and there are to be submitted to the Society.

1. Plan and document

(1) Hull : 1 copy

(A) General arrangement

(B) Midship section

(D) Shell expansion

(E) Transverse bulkheads

(F) Rudder and Rudder stock construction

(G) Stern frame

(H) Hatches and hatch-closing arrangements(when hatch covers are provided)

(I) Capacity plan

(J) Loading manual(when loading manual is required)

(K) Lines(where freeboard assignment is required)

(L) Hydrostatic curves

(M) Lumber storage plan(where assignment of timber freeboard is required)

(N) Stability information booklet

(O) Damage stability calculation(where required)

(P) For vessels built under IACS Common Structural Rules(Pt 11, Pt 12 or Pt

be notified

13 of the

Rules), plans showing, for each structural element, both as-built and renewal thicknesses and any thickness for "voluntary addition"

(2) Machinery : 1 copy

(A) Machinery arrangement of machinery space

(B) Shafting arrangement

(D) Power transmission systems, intermediate shaft, thrust shaft and propeller shaft

(E) Propeller

(F) Piping diagram

(G) Main engine, propulsion gears and clutch systems(or manufacturer make, model and rating information)

(H) Steering gear system piping and arrangements and steering gear manufacturer make and

model information

(I) For steam turbine vessels, main boilers, superheaters and economisers(or manufacturer make, model and rating information) and steam piping

(J) For vessels less than two(2) years old, torsional vibration calculations are to be submitted

(K) Additional plans required for UMA-ship

- Instrument and alarm list

- Fire alarm system

- List of automatic safety functions(e.g. slowdowns, shutdowns, etc.)

- Function testing plan

(3) For vessels with ice class notation, plans for flexible couplings and/or torque limiting shafting devices in the propulsion line shafting(or manufacturer make, model and rating information) are

to be submitted.

(4) For oil tankers, pumping arrangement at the forward and after ends and drainage of cofferdams and pump rooms are to be submitted.

(5) Plans required in Flag Administration or Convention(where applicable) : 1 copy

(6) In accordance with the agreement of TOC, owner's authorization letter indicating that the Society may request the survey status and relevant documents from previous Society.

When ship Owner is going to change or is changed, Owner's authorization may be written by the Owner who requests at the Society the Classification Survey.

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(7) Others

(A) A copy of survey reports(including Ship's Particulars and Initial Records)

(B) Copies of Classification Certificate, Statutory Certificate and Certificate of Registry

(D) Hull Executive Summary(where required)

2. In case that the plans and documents considered equivalent to those specified in Par 1 are sub- mitted, they may be accepted at the discretion of the Society.

3. Where any of the following cases is applicable at the moment of Classification Survey of ships classed by other classes, the submission of plan and documents is to be in accordance with 402. (However, 3 copies of plans for alterations are to be submitted)

(1) change of service area to higher grade

(2) alterations or conversions

(3) change of ship's use

(4) application of additional requirements due to change of ship's nationality.

4. Classification Survey

Classification Surveys may be, but are not required to be, credited as periodical surveys for main- tenance of classification. Recommendations and/or conditions of class due for compliance at a specified periodical survey for maintenance of classification need not be carried out/complied with at a Classification Survey unless the Classification Survey is credited as the specified periodical survey for maintenance of classification or the recommendation/condition of classification is overdue.

(1) When a ship is classed by the Society as a results of transfer of class

(A) Notwithstanding the records indicating that all surveys are up-to-date, a Classification Survey is to be held as minimum technical requirements by the Society, the extent of which is to be based on the age of the vessel and the losing Society's class status as follows: However,

the Society is to request, if necessary, more strict surveys than the following requirements

according to the condition of ship.

(a) Hull Classification Survey

(i) For vessels of age less than 5 years the survey is to take the form of an Annual Survey.

(ii) For vessels between 5 and 10 years of age, the survey is to include the scope of an Annual Survey and inspection of a representative number of ballast spaces.

(iii)For vessels of 10 years of age and above but less than 20 years of age, the survey is to include the scope of an Annual Survey and inspection of a representative num-

ber of ballast spaces and cargo spaces.

(iv)For vessels subject to ESP notation(Bulk carrier, Oil tanker and Chemical tanker, etc.), which are 15 years of age and above but less than 20 years of age, the sur- vey is to have the scope of a Special Survey or an Intermediate Survey whichever

is due next.

(v) For all vessels, which are 20 years of age and above, the survey is to have the scope of a Special Survey. This requirement is also applicable to the vessels having

their hull under continuous survey.

(vi)In lieu of the requirements in items (i) through (v), the following apply for site specific purpose-built Floating Production and/or Storage Vessels:

for vessels of age less than 5 years, the survey is to have the scope of an Annual Survey.

➁ for vessels of age between 5 and 10 years, the survey is to include the of an Annual Survey and inspection of 20 % of ballast tanks.

➂ for vessels of age between 10 and 20 years, the survey is to include the of an Annual Survey, inspection of 20 % of ballast tanks and 20 % of

spaces.

scope

scope cargo

➃ for vessels of 20 years of age and above, the survey is to have the scope of a Special Survey.

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(vii) The following apply for site specific purpose-built Floating Production and/or Storage Vessels which have been converted from other vessels.

➀ until 20 years have elapsed since conversion, the survey is to of an Annual Survey, inspection of 20 % of ballast tanks and

spaces.

have the

20 % of

scope

cargo

➁ after 20 years have elapsed since conversion, the survey is to of a Special Survey.

have the scope

(viii) In the context of applying (iv) and (v) above, if a dry-docking of the vessel is

not due at the time of Classification Survey of ships classed by other classes, con- sideration can be given to carrying out an underwater examination in lieu of dry- docking.

(ix)in the context of applying iv) and v), as applicable, the anchors and anchor chain cables ranging and gauging for vessels over 15 years of age is not required to be carried out

as part of the Classification Survey unless the Classification Survey is

being credited as a periodical survey for maintenance of class. If the Classification

Survey is to be credited eration may be given by chain cables ranging and

as a periodical survey for maintenance of class, consid- the Society to the acceptance of the anchors and anchor gauging carried out by the losing Society provided they

(x)

were carried out within the applicable survey window of the periodical survey in question.

In the context of applying (i) to (viii) above, as applicable, consideration may be

given by the Society to the acceptance of thickness measurements taken by the los- ing society provided;

if the Classification Survey is to be credited as a periodical survey for main- tenance of class, they were carried out within the applicable survey window of the periodical survey in question.

if the Classification Survey is not to be credited as a maintenance of class, they were carried out;

- within 15 months prior to completion of Classification

the scope of a Special Survey,

- within 18 months prior to completion of Classification the scope of an Intermediate Survey.

periodical survey for

Survey when it is in Survey when it is in

In and both cases, the thickness measurements are to be reviewed by the Society for compliance with the applicable survey requirements, and confirmatory gaugings are to be taken to the satisfactory of the Society.

(xi) In the context of applying (iii) to (viii) above, as applicable, tank pressure testing for vessels over 15 years of age is not required to be carried out as part of the Classification Survey unless the Classification Survey is being credited as a period- ical survey for maintenance of class. If the Classification Survey is to be credited as a periodical survey for maintenance of class, consideration may be given by the Society to the acceptance of the tank pressure testing carried out by the losing Society provided they were carried out within the applicable survey window of the periodical survey in question.

(xii) In the context of applying (i) to (viii) above, as applicable, compliance with IACS Unified Requirements that require compliance at the forthcoming due periodical sur- veys (such as S26(Strength and Securing of Small Hatches on the Exposed Fore Deck) and S27(Strength Requirements for Fore Deck Fittings and Equipment)) are

not required to be carried out/completed as part of the Classification Survey unless the Classification Survey is credited as a periodical survey for maintenance of class.

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(b) Machinery Classification Survey

A general examination of all essential machinery is to be held and included:

(i) The adjustment of all boiler, economizer and steam generator safety valves are to be

verified and oil fuel burning equipment examined under working conditions.

(ii) All pressure vessels are to be identified with the submitted plans and/or certificates.

(iii) Insulation resistance, generator circuit breakers, preference tripping relays and gen-

erator prime mover governors are to be tested and paralleling and load distributing to be proved.

(iv) In all cases, navigation lights and indicators are to be examined under working con-

dition and alternative source of supply to be verified.

(v) Bilge pumping and oil fuel burning installations, together with emergency fire pump and remote controls for oil valves, oil fuel pumps, lubricating oil pumps and forced

draught fans are to be examined and tested under working conditions.

(vi)Recirculating and ice clearing arrangements are to be verified as conforming to Rule requirements(When ice class is required).

(vii) The main and all auxiliary machinery necessary for operation of the ship at sea to- gether with essential controls and steering gear are to be tested under working conditions. Alternative means of steering are to be tested. A short sea trial may be

held at the Surveyor's discretion if the ship has been laid up for a long period.

(viii) Initial start arrangements are to be verified.

(ix) In the case of oil tankers, the cargo oil system and electrical installation in way of

dangerous spaces are to be checked for compliance with rule requirements. Where explosion protected electrical safe equipment is installed, the Surveyors are to con- firm themselves that such equipment has been approved by a recognised authority.

The safety devices, alarms and essential instruments of inert gas system are to be verified and the plant generally examined to ensure that it does not constitute a haz- ard to the ship.

Note : For the transfer of class or adding class as a double classed vessel or a dual classed vessel at ship's delivery after completion of the new construction survey of other society, items (iii) and (ix) may be verified by reviewing the ship's record.

(B) For

vessels less than 15 years of age, an Interim Certificate of Class, or other documents

enabling the vessel to trade are not to be issued, until all relevant surveys specified in (A)

above have been satisfactorily completed; until all overdue surveys and all overdue recom- mendations/conditions of class previously issued against the subject vessel as specified to the Owner by the losing Society, have been completed and rectified by the Society.

For vessels 15 years of age and above, an Interim Certificate of Class, or other documents enabling the vessel to trade are not to be issued, until all relevant surveys specified in (A)

above have been satisfactorily completed; until all overdue surveys and all overdue recom- mendations/conditions of class previously issued against the subject vessel as specified to the

Owner by the losing Society, have been completed and rectified by the losing Society. When facilities are not available in the first port of survey, an Interim Certificate of Class may be issued to allow the vessel to undertake a direct voyage to a port where facilities

are available to complete the surveys required in (A) above. In such cases, the surveys specified in (A) above are to be carried out to the maximum extent practicable at the first port of survey, but in no case less than the scope of annual hull survey and machinery sur- veys as required in (A) (b).

(C) The validity of the Interim Certificate of Class and the subsequent Certificate of Class is subject to any outstanding recommendations/conditions of class previously issued against the vessel being completed by the due and as specified by the losing Society. Any outstanding recommendations/conditions of class with their due dates are to be clearly stated on the:

(a) Interim Certificate of Class and/or class survey record available on board; and

(b) Survey status when the Certificate of Class is issued.

(D) Any additional information regarding outstanding surveys or recommendations/conditions of class received from the losing Society is to be dealt with in accordance with above (B) and

(C) as applicable. If this additional information is received after the Interim Certificate of Classification has been issued, any surveys or recommendations/conditions of class which are

overdue are to be dealt with at the first port of call:

(a) by the Society in vessels less than 15 years of age; or

(b) by the losing Society in vessels 15 years of age or over

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(2) When a vessel is classed by the Society as a double classed vessel

(A) Double classed vessel is a vessel which is classed by two Societies and where each Society works as if it is the only Society classing the vessel, and does all surveys in accordance with its own requirements and schedule.

(B) Classification Survey is to be carried out in accordance with the requirements of (1) (A) above taking account of the recommendations/conditions of class of in the status provided by the first Society.

(3) When a vessel is classed by the Society as a dual classed vessel

(A) Dual classed vessel is a vessel which is classed by two Societies between which there is a

written agreement regarding sharing of work.

(B) Classification Survey having the scope of an Annual Survey as a minimum is to be carried out.

(4) When a vessel is classed by the Society as a double classed vessel or a dual classed vessel at ship's delivery after completion of the new construction survey of other society, all relevant sur- veys specified in (1) (A) are to be carried out and satisfactorily completed.

5. When a vessel is withdrawing class of the other Society from a double class arrangement with the Society

(A) For vessels less than 15 years of age, all overdue recommendations/conditions of class of

the withdrawing Society are to be completed at the first port of call at which surveys can be carried out and all outstanding recommendations/conditions of class of the withdrawing Society are to be completed by the due date of the withdrawing Society.

For vessels of 15 years of age and over, all overdue recommendations/conditions of class of the withdrawing Society are to be completed by the withdrawing Society and all outstanding recommendations/conditions of class of the withdrawing Society are to be completed by the

due date of the withdrawing Society.

(B) The validity of the Certificate of Classification is subject to any outstanding recom- mendations/conditions of class previously issued against the vessel by the withdrawing

Society being completed by the due date and as specified by the withdrawing Society. Any outstanding recommendations/conditions of class with their due dates are to be clearly stated on the:

(a) class survey record if available on board; and

(b) survey status

withdrawing Society is to be dealt with in accordance with above (A) and (B) as applicable. If this additional information is received from the withdrawing Society after the Interim

Certificate of Classification has been issued or Certificate of Classification has been done, any

the confirmation of the validation of the recommendations/conditions of class which

are overdue are to be dealt with at the first port of call at which surveys can be carried out by the relevant Society, depending on the age of the vessel.

(D) When facilities are not available in the first port of survey, a direct voyage to a port where facilities are available may be accepted to complete surveys for overdue recom- mendations/conditions of class of the withdrawing Society.

405. Stability experiments

1. Stability criteria and a standardized form of the stability information booklet are to comply with the requirements given in 307. of the Guidance.

2. In application to 405. of the Rules, the term "the sufficient information based on previous stability experiments" means the information on stability experiments approved by any Society which is sub- ject to verification of compliance with QSCS(Quality System Certification Scheme) of IACS or the relevant flag state(including recognized organizations authorized by the relevant flag state to act on its behalf)

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Section 5 Certificates and Reports

502. Interim Certificate of classification

In application to 502. 2 of the Rules, the term "where a single direct voyage is allowed" means the cases as specified in 901. 5 or 7 of the Rules, etc.

Section 7

Cooperation Duties of Owners

702. Cooperation to survey

In application to 702. 4 of the Rules, "the Guidance" means the requirements specified in Annex 1-11 of the Guidance.

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Section 8 Competence and Duties of Surveyors

801. Competence of Surveyors

1. Request of additional survey

The Surveyor may request additional surveys even though they are not specified as the survey items for the relevant kind of survey or may increase the extent of the relevant survey considering the following items and so on, if deemed necessary by the Surveyor.

(1) where abnormality is suspect from the survey on the survey items for the relevant kind of sur- vey

(2) where abnormality such as record or indication of abnormal deterioration, etc. is suspect

(3) where substantial corrosion, significant deformation, fracture, damage or other defect is evident or suspect

(4) information from the records of maneuvering, operation, maintenance, measurement, etc. and in-

formation from the ship(ship officers, crews) or maker

(5) the relevant technical information on defects from similar ships or similar survey objects ac- cording to available information

2. Request of non-destructive examination

The Surveyor may request non-destructive examinations or may increase the extent of the non-de- structive examinations considering the following items and so on, if deemed necessary by the Surveyor.

(1) where injurious defect is evident or suspect at surface and/or inside of materials, welding or re- paired defect, etc.

(2) the areas where workmanship is suspect, where new manufacture/welding methods have been

adopted, where defects are liable to occur easily, where working conditions such as accessability are not good, etc.

(3) items specified in 1 (1) to (5) above

3. Request of thickness measurement

The Surveyor may request thickness measurements or may increase the extent of the thickness measurements considering the following items and so on, if deemed necessary by the Surveyor.

(1) where wastage is evident or suspect

(2) where considered to be prone to rapid wastage

(3)

where there is no protective coating or abnormality in protective coating condition such as breakdown of coating, etc. is evident or suspect

(4) items specified in 1 (1) to (5) above

4. Request of pressure test

The Surveyor may request pressure tests or may increase the extent of the pressure tests consider- ing the following items and so on, if deemed necessary by the Surveyor.

(1) where abnormality is suspect from the external examination

(2) where applicant has not carried out sufficient self-inspection for leak test which is adopted in- stead of pressure test

(3) items specified in 1 (1) to (5)

5. above

Request of Close-up Survey

The Surveyor may request Close-up Surveys or may increase the extent of the Close-up Surveys considering the following items and so on, if deemed necessary by the Surveyor.

(1) where abnormality such as substantial corrosion or structural defects, etc. is suspect from the

Overall Survey

(2) the maintenance of the relevant space and the condition of the corrosion prevention system

6. (3) items specified in 1 (1) to (5) above

Request of open-up survey, internal examination and/or performance test

The Surveyor may request open-up surveys, internal examinations and/or performance tests or may increase the extent of the open-up surveys, internal examinations and/or performance tests consider- ing the following items and so on, if deemed necessary by the Surveyor.

(1) where abnormality is suspect from the external examination and/or operation test

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7. If the Surveyor considers the working conditions are unsafe or encounters the working conditions that may compromise the safety of the Surveyor, the Surveyor may stop or refuse surveys immedi- ately until the working conditions are safe to do so.

Section 9 Suspension/Withdrawal of Class and Reclassification

901. Suspension/Reinstatement of class

In application to 901. 1 and 6 of the Rules, the surveys to be carried out for reinstatement of class are to be based upon the survey requirements at the original date due and not on the age of the vessel when the survey is carried out.

902. Withdrawal of class

When a ship classed with the Society is detained following a Port State Control inspection with se- rious deficiencies found, the class of the ship may be suspended or withdrawn through the deliber- ation of the Classification Committee.

Section 13 Classification of Other Installations or Equipment

1301. Classification

In application to 1301. of the Rules, Annex 1-1 of the Guidance is to be referred for the assign- ment of the class notation.

1303. Construction and Survey

In application to 1303. of the Rules, "the Guidance" means the requirements specified in related Rules.

1304. Maintenance of classification

In application to 1304. of the Rules, "the requirements specified by the Society" means the re- quirements specified in the relevant technical rules of the Society.

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

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