Iranian Classification Society Rules

CHAPTER 2 PERIODICAL AND OTHER SURVEYS

Section 1 General

101. Definitions

The definitions of terms used in Ch 2 and Ch 3 are to be as specified in the followings, unless otherwise specified elsewhere.

1. Anniversary date means the day and the month of each year which will correspond to the due date of the next Special Survey from the completion date of the initial Classification Survey or of the Special Survey.

2. A bulk carrier means a ship which is constructed generally with single deck, double bottom, top- side tanks and hopper side tanks in cargo spaces, and is intended primarily to carry dry cargo in bulk. Combination carriers are included. For single skin combination carriers additional requirements are specified in Ch 3, Sec 3. Ore and combination carriers are not covered by the IACS Common Structural Rules for Bulk Carriers(Pt 11).

The following ships are not covered by the IACS Common Structural Rules for Bulk Carriers and Oil Tankers(Pt 13).

- Ore carriers

- Combination carriers

- Wood chip carriers

- Cement, fly ash and sugar carriers provided that loading and unloading is not carried out by grabs heavier than 10 tons, power shovels and other means which may damage cargo hold

structure

- Ships with inner bottom construction adapted for self-unloading

3. An oil tanker means a ship which is constructed primarily to carry oil in bulk and includes ship types such as combination carrier(Ore/Oil ship, etc.).

4. A chemical tanker means a ship constructed or adapted and used for the carriage in bulk of any liquid product listed in Pt 7, Ch 6, Sec 17.

5. A tanker means a ship constructed or adapted for the carriage in bulk of liquid cargoes of an in- flammable nature.

6. A liquefied gas carrier means a ship constructed or adapted and used for the carriage in bulk of any liquid product listed in Pt 7, Ch 5, Sec 19.

7. A ballast tank is a tank that is being used primarily for salt water ballast.

8. A space is a separate compartment including holds and tanks.

9. A

transverse section includes all longitudinal members such as plating, longitudinals and girders the deck, sides, bottom, inner bottom and longitudinal bulkhead. For transversely framed vessels, transverse section includes adjacent frames and their end connections in way of transverse

sections.

10. A representative space/tank is a space/tank which is expected to reflect the conditions of other spaces/tanks of similar type and service and with similar corrosion prevention systems. When select- ing representative spaces/tanks, account is to be taken of the service and repair history on board and identifiable critical structural areas and/or suspect areas.

11. A suspect area is a location showing substantial corrosion and/or is considered by the Surveyor to be prone to rapid wastage. See Guidance

12. Substantial corrosion is an extent of corrosion such that assessment of corrosion pattern in- dicates a wastage in excess of 75 % of allowable margins, but within acceptable limits. For vessels built under the IACS Common Structural Rules(Pt 11, Pt 12 or Pt 13), substantial corrosion is an extent of corrosion such that the assessment of the corrosion pattern indicates a measured thickness between + 0.5 mm and . Renewal thickness( ) is the minimum allowable thickness, in

mm , below which renewal of structural members is to be carried out.

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13. An Overall Survey means a survey intended to report on the overall condition of the hull struc- ture and determine the extent of additional Close-up Surveys.

14. A Close-up Survey means a survey where the details of structural components are within the close visual inspection range of the Surveyor, i.e. normally within reach of hand.

15. Corrosion prevention system

A corrosion prevention system is normally considered a full hard protective coating. Hard protective coating is usually to be epoxy coating or equivalent. Other coating systems, which are neither soft nor semi-hard coatings, may be considered acceptable as alternatives provided that they are applied and maintained in compliance with the manufacturer's specifications.

Where soft coating means a coating that remains soft so that is wears off at low mechanical im- pact or when touched; often based on oil(vegetable or petroleum) or lanolin(sheep wool grease) and semi-hard coating means a coating that dries or converts in such a way that it stays flexible al- though hard enough to touch and walk upon.

16. Coating condition is defined as follows:

(1) GOOD

(2) FAIR

(3) POOR

condition with only minor spot rusting

condition with local breakdown at edges of stiffeners and weld connections and/or light rusting over 20 % or more of areas under consideration, but less than as defined for POOR condition

condition with general breakdown of coating over 20 % or more, or hard scale at 10 % or more, of areas under consideration

17. A prompt and thorough repair is a permanent repair completed at the time of survey to the satisfaction of the Surveyor, therein removing the need for the imposition of any associated con- dition of classification, or recommendation.

18. Enhanced survey programme means, in addition to Ch 2, an enhanced survey method applied for hull structure and piping systems in way of cargo holds/tanks, pump rooms, cofferdams, pipe tunnels, void spaces within the cargo area and all ballast tanks in accordance with Ch 3.

19. Critical structural area is location which has been identified from calculations to require mon- itoring or from the service history of the subject ship or from similar ships or sister ships, if avail- able, to be sensitive to cracking, buckling or corrosion which would impair the structural integrity of the ship.

20. Special consideration or specially considered (in connection with Close-up Surveys and thickness measurements) means sufficient close-up inspection and thickness measurements are to be taken to confirm the actual average condition of the structure under the coating.

21. Air pipe head

Air pipe heads installed on the exposed decks are those extending above the freeboard deck or su- perstructure decks.

22. Cargo length area is that part of the ship which contains all cargo holds and adjacent areas in- cluding fuel tanks, cofferdams, ballast tanks and void spaces.

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23. Pitting corrosion is defined as scattered corrosion spots/areas with local material reductions

which are greater

Fig 1.2.1.

than the general corrosion in the surrounding area. Pitting intensity is defined in

Fig 1.2.1 Pitting intensity diagrams

24. Edge corrosion is defined as local corrosion at the free edges of plates, stiffeners, primary sup- port members and around openings. An example of edge corrosion is shown in Fig 1.2.2.

Fig 1.2.2 Edge corrosion

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25. Grooving corrosion is typically local material loss adjacent to weld joints along abutting stiff-

eners and

1.2.3.

at stiffener or plate butts or seams. An example of grooving corrosion is shown in Fig

Fig 1.2.3 Grooving corrosion

102. Kinds of surveys

Periodical and other surveys to

(1) Special Survey

(2) Intermediate Survey

(3) Annual Survey

(4) Docking Survey

maintain the classification are divided as follows;

(5) Survey of Propeller Shaft and Stern Tube Shaft, Etc.

(6) Boiler Survey

(7) Continuous Survey(including Survey in accordance with the Planned Maintenance System)

(8) Occasional Survey

(9) Alteration Survey

103. Duplication of surveys

When heavier kind of survey is carried out at the due range or in advance of a periodical the periodical survey may be dispensed with.

survey,

104. Execution of heavier survey

At the periodical requested by the Guidance

survey, Owner

any items as specially considered necessary by the Surveyor or specially may be inspected to the standard of heavier periodical surveys. See

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105. Laid-up ships

No periodical surveys are to be carried out for classed ships when they are laid-up. In order to put the laid-up ship into service, the ship has to receive the heaviest kind of survey amongst all the due surveys during laid-up period.

106. Tests

1. At the periodical survey, when the repair to the ship is likely to affect the ship's speed or safety, the speed trials and inclining experiment may be required.

2. If significant repairs are carried out to main or auxiliary machinery or steering gear, consideration is to be given to a sea trial to attending Surveyor's satisfaction. See Guidance

107. Repairs

1. When the Surveyor recommends the necessity of repairs in consequence of the surveys, he is to notify the applicant the reasons of his recommendations and the applicant after such notification must receive the supervision of the Surveyor during the repairs.

2. Any damage in association with wastage over the allowable limits(including buckling, grooving, de- tachment or fracture), or extensive areas of wastage over the allowable limits, which affects or, in the opinion of the Surveyor, will affect the vessel's structural, watertight or weathertight integrity, is to be promptly and thoroughly repaired. Areas to be considered include; See Guidance

(1) side shell frames, their end attachments and adjacent shell plating

(2) deck structure and deck plating

(3) bottom structure and bottom plating

(4) watertight or oiltight bulkheads

(5) hatch cover and hatch coamings

(6) items in 202. 1 (1) (f), (g) and (6)

(7) for bulk carriers and double skin bulk carriers;

- bottom structure and bottom plating

- side structure and side plating

- deck structure and deck plating

- inner bottom structure and inner bottom plating

- inner side structure and inner side plating

- watertight or oil tight bulkheads

- hatch covers and hatch coamings

- bunker and vent piping system, including ventilators

(8) for oil tankers, chemical tankers and double hull oil tankers;

- bottom structure and bottom plating

- side structure and side plating

- deck structure and deck plating

- watertight or oiltight bulkheads

- hatch covers or hatch coamings, where fitted

3. For location where adequate repair facilities are not available, consideration may be given to allow the vessel to proceed directly to a repair facility. This may require discharging the cargo and/or temporary repairs for the intended voyage.

4. Additionally, when a survey results in the identification of structural defects or corrosion, either of

which, medial

5. Where

which

in the opinion of the Surveyor, will impair the vessel's fitness for continued service, re- measures are to be implemented before the ship continues in service. See Guidance

the damage found on structure mentioned in Par 2 is isolated and of a localised nature does not affect the ship's structural integrity, consideration may be given by the Surveyor to

allow an appropriate temporary repair to restore watertight or weather tight integrity and

Recommendation/Condition of Class in accordance with IACS PR No.35(Procedure for

and Clearing Recommendation/Condition of Class), with a specific time limit.

impose a

Imposing

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6. Voyage repairs and maintenance

(1) Where repairs to hull, machinery or equipment, which affect or may affect classification, are to be carried out by a riding crew during a voyage, they are to be planned in advance. A com- plete repair procedure including the extent of proposed repair and the need for Surveyor's at- tendance during the voyage is to be submitted to the Society in advance and the repair proce- dure is to be in accordance with the separate requirement specified by the Society. Where in any emergency circumstance, emergency repairs are to be effected immediately, the repairs should be documented in the ship's log and submitted thereafter to the Society for use in de- termining further survey requirements. See Guidance

(2) The above is not intended to include maintenance and overhaul to hull, machinery and equip- ment in accordance with manufacturer's recommended procedures and established marine practice

and which does not require the approval of the Society. However, any repairs as a result of

such maintenance and overhauls which affects or may affect classification is to be noted in the ship's log and submitted to the attending Surveyor for use in determining further survey

requirements.

108. Wear limit on structural members

When the thickness of hull structural members or the scantlings of equipment, etc. exceed the wear limit, they have to be renewed with those having the original scantlings or the scantlings consid- ered suitable by the Society. As regards the scantlings of structural members which have been re- duced by virtue of an approved system of corrosion control, the present scantlings are to be exam- ined regarding them as having been corroded by the reduced amount since the time of construction. However, when the original scantlings were larger than the required ones, or when deemed appro- priate by the Society, these requirements may be modified taking into account of the location, ex- tent, kind of the wear. See Guidance

109. Procedures for thickness measurements See Guidance

1. Prior to commencement of the Intermediate or Special Survey, as required by Sec 3, Sec 4, Sec 14, Sec 15 or Ch 3, a meeting is to be held between the attending Surveyor(s), the master of the

ship or an appropriately qualified

representative appointed by the master or company, the Owner's

representative(s) in attendance and the thickness measurement firm's representative(s) so as to ensure

the safe and efficient execution onboard.

2. Thickness measurements are to be

of the surveys and thickness measurements to be carried out

made by an appropriate ultrasonic equipment or other equivalent

means and the results of the gaugings are to be reported.

3. Thickness measurements required in the context of hull structural classification surveys, if not car- ried out by the Society itself, shall be witnessed by a Surveyor. This requires the Surveyor to be on board, while the gaugings are taken, to the extent necessary to control the process.

4. Where the Surveyor is to attend to the thickness measurements in accordance with preceding Par 3, the control of the thickness measurement process, review, verification and record of attendance are to be in accordance with the separate requirement specified by the Society.

5. Thickness measurements and Close-up Surveys

In any kind of survey, i.e. Special, Intermediate, Annual or other Surveys having the scope of the

foregoing ones, shall be carried

thickness measurements of structures in areas where Close-up Surveys are required out simultaneously with Close-up Surveys.

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110. Preparations for survey

1. Conditions for survey

(1) The Owner is to provide the necessary facilities for a safe execution of the survey.

(2) Tanks and spaces are to be safe for access, i.e. safe measured such as gas freed, ventilated, and illuminated.

(3) In preparation for survey and thickness measurements and to allow for a thorough examination, all spaces are to be cleaned including removal from surfaces of all loose accumulated corrosion

scale. Spaces are to be sufficiently clean and free from water, scale, dirt, oil residues etc. to re- veal corrosion, deformation, fractures, damages, or other structural deterioration. However, those areas of structure whose renewal has already been decided by the Owner need only be cleaned

and descaled to the extent necessary to determine the limits of the areas to be renewed.

(4) Sufficient illumination is to be provided to reveal corrosion, deformation, fractures, damages or

other structural deterioration.

(5) Where soft or semi-hard coatings have been applied, safe access is to be provided for the Surveyor to verify the effectiveness of the coating and to carry out an assessment of the con- ditions of internal structures which may include spot removal of the coating. When safe access

cannot be provided, the soft or semi-hard coating is to be removed.

(6) Casings, ceilings or linings, and loose insulation, where fitted, are to be removed, as required

by the Surveyor, for examination of plating and framing. Compositions on plating are to be ex-

amined and sounded, but need not be disturbed if found adhering satisfactorily to the plating.

See Guidance

(7) In refrigerated cargo spaces the condition of the coating behind the insulation is to be examined at representative locations. The examination may be limited to verification that the protective coating remains effective and that there are no visible structural defects. Where POOR coating condition is found, the examination is to be extended as deemed necessary by the Surveyor. The condition of the coating is to be reported. If indents, scratches, etc., are detected during surveys of shell plating from the outside, insulations in way are to be removed as required by the Surveyor, for further examination of the plating and adjacent frames. See Guidance

2. Access to structures

(1) For survey, means are to be provided to enable the Surveyor to examine the hull structure in a safe and practical way.

(2) For survey in cargo holds and ballast tank, one or more of the following means for access, ac-

ceptable to the Surveyor, is to be provided:

(A) permanent staging and passages through structures

(B) temporary staging and passages through structures

(D) boats or rafts

(E) other equivalent means

3. Equipment for survey

(1) Thickness measurement is normally to be carried out by means of ultrasonic test equipment.

The accuracy of the equipment is to be proven to the Surveyor as required. Thickness measure- ments are to be carried out by a firm approved by the Society in accordance with Annex 1-11 of the Guidance, except that in respect of measurements on non-ESP ships less than 500 gross

tonnage

(2) One or

sary by

and all fishing vessels, the firm need not be so approved.

more of the following fracture detection procedures may be required if deemed neces- the Surveyor: See Guidance

(A) radiographic equipment

(B) ultrasonic equipment

(D) dye penetrant

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4. Survey at sea or at anchorage

(1) Survey at sea or at anchorage may be accepted provided the Surveyor is given the necessary assistance from the personnel onboard. Necessary precautions and procedures for carrying out the survey are to be in accordance with Par 1, Par 2 and Par 3 above.

(2) A communication system is to be arranged between the survey party in the tank or space and the responsible officer on deck. This system is to also include the personnel in charge of ballast pump handling if boats or rafts are used.

(3) When boats or rafts are used, appropriate life jackets are to be available for all participants.

Boats or rafts are to have satisfactory residual buoyancy and stability even if one chamber is ruptured. A safety check-list is to be provided.

(4) Surveys of tanks by means of boats or rafts may only be undertaken at the sole discretion of the Surveyor, who is to take into account the safety arrangements provided, including weather

forecasting and ship response under foreseeable conditions. See Guidance

111. Special consideration for military vessels

Special consideration may be given in application of relevant sections of this chapter to commercial vessels owned or chartered by Governments, which are utilized in support of military operations or service.

112. Internal examination for ballast tanks with semi-hard coating

As for the requirements regarding semi-hard coatings, these coatings, if already applied, will not be accepted form the next Special or Intermediate Survey commenced on or after 1 July 2010, which- ever comes first, with respect to waving the annual internal examination of the ballast tanks.

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Section 2 Annual Survey

201. Due range

1. Annual Survey is to be carried out within 3 months before or after each anniversary date.

2. Annual Survey may be carried out in advance even if it is not due, upon application by the Owner. However, if Annual Survey is carried out more than 3 months earlier than the anniversary date, the anniversary date will be newly assigned to the date of 3 months later than the date on which the survey was completed. The subsequent Annual Survey shall be completed at the interval which will correspond to the new anniversary date.

202. Hull, equipment and fire-extinguishing appliances

1. The survey is to consist of an examination for the purpose of ensuring, as far as practicable, that the hull, hatch covers, hatch coamings, closing appliances, and equipment are maintained in a sat- isfactory condition.

(1) Examination of weather decks, ship side plating above waterline, hatch covers and coamings.

(a) Confirmation is to be obtained that no unapproved changes have been made to the hatch covers, hatch coamings and their securing and sealing devices since the last survey.

(b)

(c)

(d)

(e)

(f)

(g)

(h)

Where mechanically operated steel covers are fitted, checking the satisfactory condition, as

applicable, of:

(i) hatch covers

(ii) tightness devices of longitudinal, transverse and intermediate cross junctions(gaskets, gas- kets lips, compression bars, drainage channels)

(iii) clamping devices, retaining bars, cleating, chain or rope pulleys

(iv) guides, guide rails and track wheels, stoppers, etc.

(v) wires, chains, gypsies, tensioning devices

(vi) hydraulic system essential to closing and securing

(vii) safety locks and retaining devices

Where portable covers, wooden or steel pontoons are fitted, checking the satisfactory con-

dition where applicable, of:

(i) wooden covers and portable beams, carriers or sockets for the portable beams, and their securing devices

(ii) steel pontoons, tarpaulins

(iii) cleats, battens and wedges

(iv) hatch securing bars and their securing devices

(v) loading pads/bars and the side plate edge

(vi) guide plates and chocks

(vii) compression bars, drainage channels and drain pipes(if any)

Checking the satisfactory condition of hatch coamings plating and their stiffeners, where applicable.

Random checking of the satisfactory operation of mechanically operated hatch covers is to

be made including:

(i) stowage and securing in open condition

(ii) proper fit and efficiency of sealing in closed condition

(iii) operational testing of hydraulic and power components, wires, chains and link drives Examination of the weld connection between air pipes and deck plating.

External examination of all air pipe heads installed on the exposed decks.

Examination of flame screens on the open ends of air pipes to all bunker tanks.

(2) Checking that no alterations have been made to the hull or superstructures that would affect the calculations determining the position of the load lines.

(3) Checking of the positions of the deck line and load line which, if necessary, are to be re- marked and re-painted.

(4) Examining the means of securing the weathertightness of cargo hatchways, other hatchways and

other openings on the freeboard and superstructure decks.

(5) Examining the watertight integrity of the closures to any openings in the ship's side below the freeboard deck.

(6) Examining the ventilators and air pipes, including their coamings and closing appliances.

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(7) Examining the scuppers, inlets and discharges.

(8) Examining the garbage chutes

(9) Examining the means provided to minimize water ingress through the spurling pipes and chain

lockers

(10) Examining the side scuttles and deadlights.

(11) Examining the bulwarks including the provision of freeing ports, special attention being given

to any freeing ports fitted with shutters.

(12) Examining the guardrails, gangways, walkways and other means provided for the protection of the crew and for gaining access to and from crew's quarters and working spaces.

(13)

(14)

(15)

Checking, when applicable, the fittings and appliances for timber cargoes on deck.

Confirming that the drainage from enclosed cargo spaces situated on the freeboard deck is satisfactory.

Examining engine room and boiler room including exposed engine casings and their openings,

engine room skylights, ventilator openings and their closing appliances.

(16) Examining flush scuttles and manhole covers.

(17) General condition of outside of the hull above the water line including weather deck and the arrangement for drainage, mooring and anchoring(including the hull structures in the vicinity of the fittings) are to be examined so far as could be seen. For ships built after 1 January 2007

subject to the International Convention for the Safety of Life at Sea(SOLAS), confirming that the towing and mooring equipment is clearly and properly marked with any restriction associated with its safe operation

(18) Examining the superstructure end bulkheads, and examining the collision and the other water- tight bulkheads as far as can be seen

(19)

(20)

Examining and testing(locally and remotely) all the watertight doors in watertight bulkheads

Examining penetrations and stop valves on watertight bulkheads and closing appliances of openings on superstructure end bulkheads. If considered necessary by the Surveyor, perform-

ance test for closing appliances of openings on superstructure end

out. See Guidance

bulkheads is to be carried

(21) Examining, when applicable, the special requirements for ships permitted to sail with reduced freeboard.

(22)

(23)

Examining each bilge pump and confirming that the bilge pumping system for each watertight compartment is satisfactory.

Confirming, when appropriate and as far as is practicable when examining internal spaces on

oil tankers and bulk carriers, that the means of access to cargo and other spaces remain in good condition (SOLAS 74/00/02, Reg.II-1/3-6)

(24) Examining the functionality of bilge well alarms to all cargo holds and conveyor tunnels

(SOLAS 74/97, Reg.XII/9)

(25) For bulk carriers, examining the hold, ballast and dry space water level detectors and their au- dible and visual alarms (SOLAS 74/02, Reg.XII/12)

(26) For bulk carriers, checking the arrangements for availability of draining and pumping systems forward of the collision bulkhead (SOLAS 74/02, Reg.XII/13)

(27) For container ships equipped with container securing arrangements in accordance with Pt 7,

Ch 4, 1002. of the Rules, the container securing arrangements are to be examined as follows:

(a) general examination for arrangements

(b) confirmation of on-board record book

(28) For ships provided with a loading instrument in accordance with the requirements of Pt 3, Ch 3, 104., it is to be confirmed that a loading instrument having the performance and functions

as deemed appropriate by the Society is installed on board. Where a stability instrument speci- fied in Ch 1, 307. is provided on-board, then the system is to be tested.

(29)

Documentations on board including the stability data, etc. approved by the Society are to be confirmed to be kept on board.

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(30) Suspect areas

guidance for these additional thickness measurements. These extended thickness measurements

are to be carried out before the Annual Survey is credited as completed.

However, Structural

the substantial corrosion areas identified on bulk carriers built under IACS Common Rules(Pt 11 or Pt 13) are to be in accordance with Ch 3, 202. 5, 203. 4 (c), 204.

5 (2) in case of single skin bulk carriers or Ch 3, 602.

double skin bulk carriers.

5, 603. 4 (c), 604. 5 (2) in case of

Note : These requirements are not applicable to cargo tanks of oil tankers, chemical tankers and double hull oil tankers, surveyed in accordance with Ch 3, Sec 3, Sec 4 and Sec 5.

(31) Examination of ballast tanks

Examination

Survey and Surveyor, or

of ballast tank when required as a consequence of the results of the Special

Intermediate Survey is to be carried out. When considered necessary by the where extensive corrosion exists, thickness measurement is to be carried out. If the

results of these thickness measurements indicate that substantial corrosion is found, then the ex-

tent of thickness corrosion. Table

measurements is to be increase to determine the extent of areas of substantial

1.2.5 may be used as guidance for these additional thickness measurements.

These extended thickness measurements are to be carried out

ited as completed. See Guidance

before the Annual Survey is cred-

(32) For ships provided with the equipment employed in the mooring of ships at single point

mooring specified in

Pt 4, Ch 10, 101. 3 and assigned the additional class notation "EQ-SPM",

the general function and deformation condition of this equipment employed in the mooring of

ships at single point

mooring and hull supporting structures are to be checked.

2. For fire-extinguishing appliances, the survey is to be in accordance with the Guidance relating to the Rules. See Guidance

3. For ships subject to the enhanced survey programme such as bulk carriers, oil tankers and chemical tankers, etc., in addition to items of Par 1 through Par 2, the additional requirements in accordance with Ch 3 are to be taken. However, if the duplicated survey items are exist, these are not to be applied twice.

4. For additional requirements applicable to water level detectors fitted on single hold cargo ships, re- fer Sec 14.

5. In addition to Par 1 through Par 2, Ch 14 is also to be taken for general dry cargo ships and

Ch 15 is also exist, these are

to be taken for liquefied gas carriers. However, if the duplicated survey items are not to be applied twice.

6. In addition to Par 1 through Par 2, Ch 16 is also to be taken for shell and inner doors, etc. of RoRo ships. However, if the duplicated survey items are exist, these are not to be applied twice.

7. In addition to Par 1 through Par 2, relevant requirements of taken if applicable.

Ch 17 and/or Ch 18 are also to be

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203. Machinery, electrical installations and additional installations

1. Confirming that the machinery, boilers and other pressure vessels, associated piping systems and fit- tings are installed and protected as to reduce to a minimum any danger to persons on board, due regard being given to moving parts, hot surfaces and other hazards.

2. Confirming that the normal operation of the propulsion machinery can be sustained or restored even though one of the essential auxiliaries becomes inoperative.

3. Confirming that means are provided so that the machinery can be brought into operation from the dead ship condition without external aid.

4. Carrying out a general examination of the machinery, the boilers, all steam, hydraulic, pneumatic and other systems and their associated fittings to see whether they are being properly maintained and with particular attention to the fire and explosion hazards.

5. Examining and testing the operation of main and auxiliary steering arrangements, including their as- sociated equipment and control system.

6. Confirming that the means of communication between the navigating bridge and the steering gear

compartment and the means of indicating satisfactorily.

7. Confirming that with ships having emergency information and, when appropriate, supply position.

the angular position of the rudder are operating

steering positions there are means of relaying heading visual compass reading to the emergency steering

8. Confirming that various alarms required for hydraulic power-operated, electric and electro-hydraulic steering gears are operating satisfactorily and that the re-charging arrangements for hydraulic pow- er- operated steering gears are being maintained.

9. Examining the means for the operation of the main and auxiliary machinery essential for propulsion and the safety of the ship, including, when applicable, the means of remotely controlling the pro- pulsion machinery from the navigating bridge(including the control, monitoring, reporting, alert and safety actions) and the arrangements to operate the main and other machinery from a machinery control room.

10. Confirming the operation of the ventilation for the machinery spaces.

11. Confirming that the engine room telegraph, the second means of communication between the navigating bridge and the machinery space and the means of communication with any other posi- tions from which the engines are controlled are operating satisfactorily.

12. Confirming that the engineer's alarm is clearly audible in the engineer's accommodation.

13. Examining, as far as practicable, visually and in operation, the electrical installations, including the main source of power and the lighting systems.

14. Confirming, as far as practicable, the operation of the emergency sources of electrical power in- cluding their staring arrangements, the systems supplied and, when appropriate, their automatic operation.

15. Examining, in general, that the precautions provided against shock, fire and other hazards of elec- trical origin are being maintained.

16. Confirming, as far as practicable, that no changes have been made in the structural fire protection, examining any manual and automatic fire doors and proving their operation, testing the means of closing the main inlets and outlets of all ventilation systems and testing the means of stopping power ventilation systems from outside the space served.

17. Confirming that the means of escape from accommodation, machinery and other spaces are satisfactory.

18. Examining the arrangements for gaseous fuel for domestic purpose.

19. Examining visually the condition of any expansion joints in sea water systems.

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20. External survey of boilers and thermal oil heaters including test of safety and protective devices, and test of safety valve using its relieving gear, is to be carried out. For exhaust gas economizers, the safety valves are to be tested by the Chief Engineer at sea within the Annual Survey. This test

is to be recorded in the log book Annual Survey.

21. Examination for the pressure relief

Sec 12 is to be carried out. Where

for review by the attending Surveyor prior to crediting the

devices of the refrigerating machinery given in Pt 5, Ch 6,

the test results done by ship's crew are considered satisfactory

by the Surveyor, the test may be dispensed with. See Guidance

22. The surveys for water jet propulsion systems and azimuth or rotatable thruster are to be carried out in accordance with the Guidance relating to the Rules. See Guidance

23. The surveys for additional installations(cargo refrigerating installations, cargo handling appliances, automatic and remote control systems, dynamic positioning systems, navigation bridge systems, hull

monitoring systems, diving systems and high voltage shore connection ried out in accordance with the requirements specified in Pt 9, etc.

24. Gas-fuelled ships other than ships carrying liquefied gases in bulk bulk are also to meet with the requirements in Ch 2, 201. of the Ships, in addition to the requirements in this section.

systems, etc.) are to be car-

and ships carrying CNG in

Guidance for Gas-fuelled

25. In case where ships with STCM(stern tube condition monitoring) notation, confirming that parame- ters in the stern tube condition monitoring records are within the permissible limit.

26. Where considered necessary by the Surveyor, opening up examination of the above items may be requested. See Guidance

27. In addition applicable.

to Par 1 through Par 26, relevant requirements of Ch 18 are also to be taken if

Rules for the Classification of Steel Ships 2015 29

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

204. Additional requirements to ship types

1. Oil tankers(including tankers) : See Guidance

The additional requirements are to be surveyed as follows, as far as practicable. Where considered necessary by the Surveyor, the performance test and overhauling may be required.

(1) Checking the deck foam system, including the supplies of foam concentrate and testing that the minimum required number of jets of water at the required pressure in the fire main is obtained when the system is in operation.

(2) Examining the inert gas system, and in particular:

(A) Examining externally for any sign of gas or effluent leakage.

(B) Confirming the proper operation of both inert gas blowers.

(D) Checking the deck water seal for automatic filling and draining.

(E) Examining the operation of all remotely operated or automatically controlled valves and, in- particular, the flue gas isolating valves.

(F) Observing a test of the interlocking feature of soot blowers.

(G) Observing that the gas pressure regulating valve automatically closes when the inert gas blowers are secured.

(H) Checking, as far as practicable, the following alarms and safety devices of the inert gas sys- tem using simulated condition where necessary. See Guidance

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

high oxygen content of gas in the inert gas main. low gas pressure in the inert gas main.

low pressure in the supply to the deck water seal. high temperature of gas in the inert gas main.

low water pressure or low water-flow rate.

accuracy of portable and fixed oxygen-measuring equipment by means of calibration gas. high water level in the scrubber.

failure of the inert gas blower.

failure of the power supply to the automatic control system for the gas regulating valve and to the instrumentation for continuous indication and permanent recording of pressure and oxygen content in the inert gas main.

high pressure of gas in the inert gas main.

(3) Checking, when practicable, the proper operation of the inert gas system on completion of the

checks listed above. And then the inert gas systems using stored carbon dioxide, oil fuel com- bustion type systems, etc. except those using flue gases, are to be tested to ascertain that they

are in good working order.

(4) Examining the fixed fire-fighting system for cargo pump rooms, and confirming, as far as prac- ticable, the operation of the remote means for closing the various openings.

(5) Checking protection of cargo pump room and in particular:

(A) Checking temperature sensing devices for bulkhead gland and alarms.

(B) Checking interlock between lighting and ventilation.

(D) Checking bilge level monitoring devices and alarms.

(6) Confirming, when appropriate, that the requisite arrangements to regain steering capability in the event of the prescribed single failure are being maintained.

(7) Examining

(8) Examining

(9) Examining

the cargo tank openings, including gaskets, covers, coamings and screens.

the cargo tank pressure/vacuum valves and devices to prevent the passage of flame. flame screens on the open ends of air pipes to all bunker tanks, ballast tanks ad-

jacent to cargo oil tanks, slop tanks and void spaces adjacent to cargo oil tanks.

(10) Examining the cargo tank venting, cargo tank purging and gas-freeing and other ventilation systems.

(11) Examining the cargo, crude oil washing, ballast and stripping systems both on deck and in the

cargo pump-rooms and the bunker system on deck.

(12) Confirming that all electrical equipment in dangerous zones is suitable for such locations, is in good condition and is being properly maintained.

(13) Confirming that potential sources of ignition in or near the cargo pump-room are eliminated, such as loose gear, combustible materials, etc., that there are no signs of undue leakage and

that access ladders are in good condition.

30 Rules for the Classification of Steel Ships 2015

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(14) Examining all pump-room bulkheads for signs of oil leakage or fractures and, in particular, the sealing arrangements of all penetrations of cargo pump-room bulkheads.

(15) Examining, as far as practicable, the cargo, bilge, ballast and stripping pumps for undue gland

seal leakage. Verifying the proper operation of electrical and mechanical remote operating and shutdown devices and operation of cargo pump-room bilge system, and checking that pump foundations are intact.

(16) Confirming that the pump-room ventilation system is operational, ducting is intact, dampers are operational and screens are clean.

(17) Verifying that installed pressure gauges on cargo discharge lines and level indicator systems

are operational.

(18)

(19)

(20)

Examining access to bow arrangement.

Examining the towing arrangement for tankers of not less than 20,000 tonnes deadweight.

Examining the emergency lighting in all cargo pump rooms of tanker constructed after 1 July

2002.

(21) Checks are to be made on the resistance to the hull of the ship for bonding straps specified in Pt 7, Ch 1, 1104.

2. Chemical tankers : See Guidance

The additional requirements are to be surveyed as follows, as far as practicable. Where considered necessary by the Surveyor, the performance test and overhauling may be required.

(1) Confirming, when appropriate, that the requisite arrangements to regain steering capability in the event of the prescribed single failure are being maintained.

(2) Examining

(3) Examining

(4) Examining

the cargo tank openings, including gaskets, covers, coamings and screens.

the cargo tank pressure/vacuum valves and devices to prevent the passage of flame. flame screens on the open ends of air pipes to all bunker tanks, ballast tanks ad-

jacent to cargo tanks, slop tanks and void spaces adjacent to cargo tanks.

(5) Examining the cargo tank venting, cargo tank purging and gas-freeing and other ventilation systems.

(6) Examining the cargo, tank cleaning, ballast and stripping systems both on deck and in the cargo

pump-rooms and the bunker system on deck.

(7) Examining, as far as practicable, the cargo, bilge, ballast and stripping pumps for undue gland seal leakage. Verification of the proper operation of electrical and mechanical remote operating

and shutdown devices and operation of cargo pump-room bilge system, and checking that pump foundations are intact.

(8) Confirming that the pump-room ventilation system is operational, ducting is intact, dampers are

operational and screens are clean.

(9) Verifying that installed pressure gauges on cargo discharge lines and level indicator systems are operational.

(10) Confirming that wheelhouse doors and windows, sidescuttles and windows in superstructure and deckhouse ends facing the cargo area are in a satisfactory condition.

(11) Confirming that potential sources of ignition in or near the cargo pump-room are eliminated,

such as loose gear, combustible materials, etc., that there are no signs of undue leakage and that access ladders are in good condition.

(12) Confirming that removable pipe lengths or other approved equipment necessary for cargo sepa-

ration are available in the pump room and are in a satisfactory condition.

(13) Examining all pump room bulkhead for signs of cargo leakage or fractures and, in particular, the sealing arrangements of all penetrations of pump room bulkheads.

(14) Confirming that the remote operation of cargo pump bilge system is satisfactory.

(15) Examining the bilge and ballast arrangements and confirming that pumps and pipelines are identified.

(16) Confirming, when applicable, that the bow or stern loading and unloading arrangements are in order and testing the means of communication and the remote shut down for the cargo pumps.

(17) Examining the cargo transfer arrangements and confirming that any hoses are suitable for their

intended purpose and, where appropriate, type-approved or marked with date of testing.

(18) Examining, as far as practicable, the cargo heating or cooling systems, including any sampling arrangements, and confirming that the means for measuring the temperature and associated

alarms are operating satisfactorily.

(19) Examining, as far as practicable, the cargo tank vent systems, including the pressure/vacuum valves and secondary means to prevent over or under pressure and flame screens.

Rules for the Classification of Steel Ships 2015 31

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(20) Examining the gauging devices, high-level alarms and valves associated with overflow control.

(21) Confirming that arrangements for sufficient gas to be carried or generated to compensate for normal losses and that the means provided for monitoring ullage spaces are satisfactory.

(22) Confirming that arrangements are made for sufficient medium to be carried where drying agents are used on air inlets to cargo tanks.

(23) Confirming that all electrical equipment in dangerous zones is suitable for such locations, is in

satisfactory condition and has been properly maintained.

(24) Examining the fixed fire-fighting system for the cargo pump room and the deck foam system for the cargo area and confirming that their means of operation are clearly marked.

(25) Confirming that the condition of the portable fire extinguishing equipment for the cargoes to be carried in the cargo area is satisfactory.

(26) Examining, as far as practicable, and confirming the satisfactory operation of, the arrangements

for the ventilation of spaces normally entered during cargo handling operations and other spaces in the cargo area.

(27) Examining, as far as practicable, that the intrinsically safe systems and circuits used for meas-

urement, monitoring, control and communication purposes in all hazardous locations are being properly maintained.

(28) Examining the equipment for personal protection and in particular that:

(A) the protective clothing for crew engaged in loading and discharging operation and its stow- age is in a satisfactory condition;

(B) the required safety equipment and associated breathing apparatus and associated air supplies

and, when appropriate, emergency-escape respiratory and eye protection are in a satisfactory condition and are properly stowed;

satisfactory condition;

(D) arrangements have been made for the antidotes for the cargoes actually carried to be on board;

(E) decontamination arrangements and eyewashes are operational;

(F) the required gas detection instruction are on board and that arrangements have been made for the supply of the appropriate vapour detection tubes;

(G) the arrangements for the stowage of cargo samples are satisfactory;

(29) Confirming that the system for continuous monitoring of the concentration of flammable va- pours which is installed in cargo pump room is satisfactory. And, confirming that sampling

points or detector heads are located in suitable positions in order that potentially dangerous lea-

kages are readily detected.

(30) Examining externally and confirming that the pumping and piping systems, including a strip-

ping system if fitted, and associated equipment remain as approved.

(31) Examining externally the tank washing piping and confirming that the type, capacity, number, and arrangement of the tank washing machine are as approved.

(32)

(33)

Examining externally the wash water heating system.

Examining externally, as far as practicable, the underwater discharge arrangements.

(34)

(35)

(36)

Confirming

Confirming Confirming

that that

that

the means of controlling the rate of discharge of the residue is as approved.

the flow rate indicating device is operable.

the ventilation equipment for residue removal is as approved.

(37)

Examining

externally, as far as it is accessible, the heating system required for solidifying and

high viscosity substances.

(38) Confirming that any cargo tank high-level alarms are operable.

(39) Examining any additional requirements for the carriage of cargoes listed on the relevant

Certificate.

(40)

(41)

(42)

Examining access to bow arrangement.

Examining the towing arrangement for tankers of not less than 20,000 tonnes deadweight. Examining the emergency lighting in all cargo pump rooms of tanker constructed after 1 July

2002.

(43) Checks are to be made on the resistance to the hull of the ship for bonding straps specified

in Pt 7, Ch 1, 1104.

32 Rules for the Classification of Steel Ships 2015

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

3. Liquefied gas carriers : See Guidance

The additional requirements are to be surveyed as follows, as far as practicable, during a

or discharging operation. Access for cargo tanks or inerted hold spaces, however, need not be sur-

veyed unless otherwise specially required by the Surveyor. Where considered necessary by the Surveyor, the performance test and overhauling may be required.

(1) Confirming, when appropriate, that the requisite arrangements to regain steering capability in the event of the prescribed single failure are being maintained.

(2) Examining the cargo tank openings, including gaskets, covers, coamings and screens.

(3) Examining flame screens on the open ends of air pipes to all bunker tanks, ballast tanks ad- jacent to cargo tanks and spaces adjacent to cargo tanks.

(4) Examining the cargo tank venting, cargo tank purging and gas-freeing and other ventilation systems.

(5) Examining the cargo piping systems both on deck and in the cargo compressor-rooms and the

bunker system on deck.

(6) Confirming that all electrical equipment in dangerous zones is suitable for such locations, is in good condition and has been properly maintained.

(7) Confirming that potential sources of ignition in or near the cargo compressor-room are elimi- nated, such as loose gear, combustible materials, etc., that there are no signs of undue leakage and that access ladders are in good condition.

(8) Examining all cargo compressor-room bulkheads for signs of oil leakage or fractures and, in particular, the sealing arrangements of all penetrations of cargo compressor-room bulkheads.

(9) Confirming that the compressor-room ventilation system is operational, ducting is intact, dampers

are operational and screens are clean.

(10) Verifying that installed pressure gauges on cargo discharge lines and level indicator systems are operational.

(11) Confirming that special arrangements to survive conditions of damage are in order.

(12) Confirming that wheelhouse doors and windows, sidescuttles and windows in superstructure and deckhouse ends in the cargo area are in a satisfactory condition.

(13) Examining the cargo pump rooms and cargo compressor rooms

(14) Confirming the manually operated emergency shutdown system together with the automatic shutdown of the cargo pumps and compressors are satisfactory.

(15) Examining the cargo control room.

(16) Examining the gas detection arrangements for cargo control rooms and measures taken to ex- clude ignition sources where such spaces are not gas-safe.

(17)

(18)

(19)

Confirming the arrangements for the air locks are being properly maintained.

Examining, as far as practicable, the bilge, ballast and oil fuel arrangements.

Examining, when applicable, the bow or stern loading and unloading arrangements with partic-

ular reference to the electrical equipment, fire-fighting arrangements and means of communica- tion between cargo control room and the shore location.

(20) Confirming that the sealing arrangements at gas domes are satisfactory

(21)

(22)

Confirming that portable or fixed drip tray of deck insulation for cargo leakage is in order. Examining the cargo and process piping, including the expansion arrangements, insulation from

the hull structure, pressure relief and drainage arrangements.

(23) Confirming that the cargo tank and interbarrier space pressure and relief valves, including safe- ty systems and alarms, are satisfactory.

(24) Confirming that the any liquid and vapour hoses are suitable for their intended purpose and,

where appropriate, type-approved or marked with date of testing.

(25) Examining the arrangements for the cargo pressure/temperature control including, when fitted, any refrigeration system and confirming that any associated alarms are satisfactory.

(26) Examining the cargo, bunker, ballast and vent piping systems, including vent masters and flame screens, as far as practicable.

(27) Confirming that arrangements are made for sufficient inert gas to be carried to compensate

for normal losses and that means are provided for monitoring the spaces.

(28) Confirming that the use of inert gas has not increased beyond that needed to compensate for normal losses by examining records of inert gas usage.

(29) Confirming that any air-drying system and any interbarrier and hold space purging inert gas

system are satisfactory.

Rules for the Classification of Steel Ships 2015 33

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(30) Confirming that electrical equipment in gas-dangerous spaces and zones is in a satisfactory condition and is being properly maintained.

(31) Examining the arrangements for the fire protection and fire extinction and testing the remote

means of starting one main fire pump.

(32) Examining the fixed fire-fighting system for the cargo pump room and confirming that its means of operation is clearly marked.

(33) Examining the water spray system for cooling, fire protection and crew protection and con- firming that its means of operation is clearly marked.

(34) Examining the dry chemical powder fire-extinguishing system for the cargo area and confirm-

ing that its means of operation is clearly marked.

(35) Examining the fixed installation for the gas-dangerous spaces and confirming its means of op- eration is clearly marked.

(36) Examining, as far as practicable, and confirming the satisfactory operation of , the arrange- ments for the mechanical ventilation of spaces in the cargo area normally entered during cargo handling operations.

(37) Examining, and confirming the satisfactory operation of, the arrangements for the mechanical ventilation of spaces normally entered other than those covered by (36) above.

(38) Examining, and testing as appropriate and as far as practicable, the liquid level indicators,

overflow control, pressure gauges, high pressure and, when applicable, low pressure alarms, and temperature indicating devices for the cargo tanks.

(39) Examining, and testing as appropriate, the gas detection equipment.

(40) Confirming that two sets of portable gas detection equipment suitable for the cargoes to be carried and a suitable instrument for measuring oxygen levels have been provided.

(41) checking the provision of equipment for personal protection and in particular that:

(A) two complete sets of safety equipment each permitting personnel to enter and work in a gas-filled space are provided and are properly stowed;

(B) the requisite supply of compressed air is provided and examining, when applicable, the ar-

rangements for any special air compressor and low-pressure air line system.

(C) medical first-aid equipment, including stretchers and oxygen resusciation equipment and anti- dotes, when available, for the products to be carried are provided.

(D) respiratory and eye protection suitable for emergency escape purposes are provided.

(E) examining when applicable, the arrangements to protect personnel against the effects of ma- jor cargo release by a special suitably designed and equipped space within the accom- modation area;

(F) examining, when applicable, the arrangements for the use of cargo as fuel and testing, as far as practicable, that the gas supply to the machinery space is cut off should the exhaust

ventilation not be functioning correctly and that master gas fuel valve may be remotely

closed from within the machinery space.

(42) The log books are to examined with regard to correct functioning of the cargo containment

and cargo handling systems. The hours per day of the reliquefaction plants or the boil-off rate is to be considered.

(43) All accessible gas-tight bulkhead penetrations including gas-tight shaft sealings are to be visu-

ally examined.

(44) The means for accomplishing gas tightness of the wheelhouse doors and windows is to be examined. All windows and side scuttles within the area required to be of the fixed type

(non-opening) are to be examined for gas tightness. the closing devices for all air intakes and

openings into accommodation spaces, service spaces, machinery spaces, control stations and ap- proved openings in superstructures and deckhouses facing the cargo area or bow and stern load-

ing/unloading arrangements, are to be examined.

(45) Cargo handing systems

The cargo handling piping and machinery, e.g. cargo and process piping, cargo heat exchangers,

vaporizers, pumps, compressors and cargo hoses are in general to be visually examined, as far as possible, during operation.

(46) Cargo containment venting systems

Venting systems, including protection screens if provided, for the cargo tanks, interbarrier spaces and hold spaces are to be visually examined externally. It is to be verified that the cargo tank relief valves are sealed and that the certificate for the relief valves opening/closing pressure is

onboard.

34 Rules for the Classification of Steel Ships 2015

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(47) Instrumentation and safety systems

(A) The instrumentation of the cargo installations with regard to pressure, temperature and liquid level is to be verified in good working order by one or more of the following methods:

- Visual external examination

- Comparing of read outs from different indicators

- Consideration of read outs with regard to the actual cargo and/or actual condition

- Examination of maintenance records with reference to cargo plant instrumentation main- tenance manual

- Verification of calibration status of the measuring instruments

(B) The logbooks are to be examined for confirmation that the emergency shutdown system has been tested.

(48) Environmental control for cargo containment systems

(A) Inert gas/ dry air installations including the means for prevention of backflow of cargo va- pour to gas-safe spaces are to be verified as being in satisfactory operating condition.

(B) For membrane containment systems normal operation of the nitrogen control system for in-

sulation and interbarrier spaces shall be confirmed to the Surveyor by the Master.

(49) Miscellaneous

(A) It is to be verified that all accessible cargo piping systems are electrically bonded to the

hull.

(B) Arrangements for burning methane boil-off are to be visually examined as far as practicable.

The instrumentation and safety systems are to be verified as being in good working order in

accordance with (47) (A) above.

(C) The relevant instruction and information material such as cargo handling plans, filling limit information, cooling down procedures etc. are to be verified as being onboard.

(D) Mechanical ventilation fans in gas dangerous spaces are to be visually examined.

(50)

(51)

(52)

Examining access to bow arrangement.

Examining the towing arrangement for tankers of not less than 20,000 tonnes deadweight.

Examining the emergency lighting in all cargo pump rooms of tanker constructed after 1 July

2002.

4. Pushers and integrated pusher barges :

The additional requirements for the connection system between pusher and integrated pusher barge are to be surveyed as follows.

(1) Confirmation of operating condition of connection system according to the operation procedure.

(2) Examination

(3) Examination

(4) Examination

(5) Examination

of connection condition including the supporting structures.

of hydraulic system for leak and operating condition, if fitted.

of hinge arm and joint pins, if fitted.

of mechanical locking/unlocking device including operating condition, if fitted.

Rules for the Classification of Steel Ships 2015 35

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

Section 3 Intermediate Survey

301. Due range

1. Intermediate Survey is to be carried out within 3 months before or after the second or third anni- versary date from the completion date of the initial Classification Survey or of the previous Special

Survey. However, for passenger ships, submersibles, nuclear high speed crafts, Intermediate Survey is to be carried out

anniversary date.

2. Intermediate Survey may be carried out in advance even if

ships, hydrofoils, air cushion vehicles, within 3 months before or after each

it is not due, upon application by an

Owner. However, if Intermediate Survey is carried out more than 3 months earlier than the anni-

versary date, the anniversary date will be newly assigned to the date of 3 months later than the date on which the survey was completed. The subsequent Intermediate Survey shall be completed at the interval which will correspond to the new anniversary date.

3. A part of Intermediate Survey items which are additional to the requirements of the Annual Survey may be surveyed either at or between the 2nd and 3rd Annual Survey, except those ships men- tioned in Par 1 of which Intermediate Survey is to be carried out every year. See Guidance

4. A survey planning meeting is to be held prior to the commencement of the survey.

5. Concurrent crediting to both Intermediate Survey and Special Survey for surveys and measurements of spaces are not acceptable.

thickness

302. Hull, equipment and fire-extinguishing appliances

At the Intermediate Survey, in addition to all the requirements for Annual Survey, items are to be surveyed:

1. Internal examination of ballast tanks and cargo spaces are given in Table 1.2.1.

Table 1.2.1 Internal examination of ballast tanks and cargo spaces

the following

5 years age 10 years

10 years age 15 years

15 years age

Ballast tanks

Representative ballast tanks1), 2), 3), 4)

All ballast tanks2), 3), 4)

Cargo holds

1. Ships carrying logs:

each one of cargo hold at the forward and aft ends

1. Ships carrying logs:

each one of cargo hold at the forward and aft ends

2. Ships carrying dry cargoes5): selected cargo holds

Cargo tanks6)

Selected cargo tanks

(NOTES)

1) If there is no hard protective coating, soft or semi-hard coating, or POOR coating condition, the examination is to be extended to other ballast tanks of the same type.

2) If such examinations reveal no visible structural defects, the examination may be limited to a verification that the corrosion prevention system remains effective.

3) For ballast tanks, excluding double bottom ballast tanks, if there is no hard protective coating, soft or semi- hard coating, or POOR coating condition and it is not renewed, the spaces in question is are to be in- ternally examined at annual intervals.

4) When such condition as above 3) are found in double bottom ballast tanks, the spaces in question may be internally examined at annual intervals.

5) General dry cargo ships subject to Sec 14 or, bulk carriers or double skin bulk carriers subject to Ch 3, Sec 2 or Sec 6 are exempted and each relevant requirements are applied.

6) Liquefied gas carriers subject to Sec 15 or, oil tankers, chemical tankers or double hull oil tankers subject to Ch 3, Sec 3, Sec 4 or Sec 5 are exempted and each relevant requirements are applied.

36 Rules for the Classification of Steel Ships 2015

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

2. For fire-extinguishing appliances, the survey is to be in accordance with the Guidance relating to the Rules. See Guidance

4. In addition to Par 1 through Par 2, Ch 14 is also to be taken for general dry cargo ships and Ch 15 is also to be taken for liquefied gas carriers. However, if the duplicated survey items are exist, these are not to be applied twice.

5. In addition to Par 1 through Par 2, relevant requirements of Ch 17 and/or Ch 18 are also to be taken if applicable.

Rules for the Classification of Steel Ships 2015 37

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

303. Machinery, electrical installations and additional installations

At each Intermediate Survey, in addition to all the requirements of Annual Survey, the following requirements are to be complied with.

1. Steam turbines for main engines

(1) Examinations are to be carried out while rotating the rotor after removing the upper part of the turbine and rotor shaft bearings. The examinations on rotors may be dispensed with when deemed unnecessary by the Surveyor. See Guidance

(2) The clutch coupling is to be examined.

2. Internal combustion engines for main engines See Guidance

(1) Partial open-up survey for one cylinder is, in principle, to be carried out as follows, however, the extent may be extended when deemed necessary by the Surveyor.

(A) Internal examinations of the cylinders and combustion side of the cylinder covers are to be

carried out. Pistons may not have to be removed except when deemed necessary by the Surveyor.

(B) Examinations are to be carried out while rotating the crank shaft after removing the upper

parts of main bearings and crank-pin bearings. The deflection of crank webs are to be measured and where deemed necessary the alignment of the bearing are to be adjusted.

(2) Examination for high-rotating-speed internal combustion engines is to be done by the require-

ment specified in the above (1), but the measurement for crank web deflections may be dis- pensed with. However, where total running hours for an internal combustion engine is confirmed and found in satisfactory by the Surveyor, the survey may be extended until next overhauling

hours recommended by the manufacturer since the previous overhauling survey.

(3) The survey for a passenger ship is to be in accordance with the Guidance relating to the Rules.

3. Auxiliary engines

Examinations on auxiliary engines driving generators(except emergency use) and other auxiliary ma- chinery related with ship propulsion are to be carried out in accordance with the requirements for main engine.

4. Other essential auxiliaries

General examinations are to be carried out on other essential auxiliary machinery. Detailed exami- nations may, however, be required when deemed necessary by the Surveyor. See Guidance

5. Electrical installations

Where deemed necessary by the Surveyor, insulation resistance test is to be made. See Guidanc e

6. The surveys for water jet propulsion systems and azimuth or rotatable thruster are to be carried out in accordance with the Guidance relating to the Rules. See Guidance

7. The surveys for additional installations(cargo refrigerating automatic and remote control systems, dynamic positioning monitoring systems, diving systems and high voltage shore

installations, cargo handling appliances, systems, navigation bridge systems, hull connection systems, etc.) are to be car-

ried out in accordance with the requirements specified in Pt 9, etc.

8. Gas-fuelled ships other than ships carrying liquefied gases in bulk and ships carrying CNG in bulk are also to meet with the requirements in Ch 2, 202. of the Guidance for Gas-fuelled Ships, in addition to the requirements in this section.

9. In addition to Par 1 through Par 8, relevant requirements of Ch 18 are also to be taken if applicable.

38 Rules for the Classification of Steel Ships 2015

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

304. Additional requirements to ship types

At each Intermediate Survey, in addition to all the requirements of Annual Survey, the following requirements are to be complied with.

1. Oil tankers(including tankers) :

The additional requirements are to be surveyed as follows, as far as practicable.

(1) Should there by any doubt as to its condition when examining the various piping systems, the piping may be required to be pressure tested, gauged or both. Particular attention is to be paid to repairs such as welded doublers.

(2) For ships over ten years of age an internal examination of selected cargo spaces;

(3) Testing the insulation resistance of electrical circuits in dangerous zones such as cargo pump rooms and area adjacent to cargo tanks but in case where a proper record of testing is main- tained consideration should be given to accepting recent readings.

2. Chemical tankers :

The additional requirements are to be surveyed as follows, as far as practicable.

(1) Verifying from the cargo record book that the pumping and stripping arrangements have been emptying the tanks efficiently and are all in working order;

(2) Confirming, if possible, that the discharge outlets are in good condition;

(3) Confirming the satisfactory operation of the recording device, as fitted, and verifying by an ac- tual flow test that it has an accuracy of ± 15 % or better;

(4) Confirming that the ventilation equipment for residue removal is satisfactory and that the pres-

sure in the driving medium for portable fans for ventilation equipment for residue removal can be achieved to give the required fan capacity.

(5) Examination of vent line drainage arrangements.

(6) Confirmation, where applicable, that pipelines and independent cargo tanks are electrically bond- ed to the hull.

(7) Generally examining the electrical equipment and cables in dangerous zones such as cargo

pump rooms and areas adjacent to cargo tanks to check for defective equipment, fixtures and wiring. The insulation resistance of the circuits should be tested and in cases where a proper record of testing is maintained, consideration should be given to accepting recent readings.

(8) Confirmation that spares are provided for cargo area mechanical ventilation fans.

3. Liquefied gas carriers :

The additional requirements are to be surveyed as follows, as far as practicable. This survey is preferably to be carried out with the ship in a gas-free conditions. The extent of the testing re- quired for this survey will normally be such that the survey cannot be carried out during a loading or discharging operation, and then testing cargo handling installations with related automatic control, alarm and safety systems for correct functioning.

(1) Confirmation, where applicable, that pipelines and independent cargo tanks are electrically bond- ed to the hull.

(2) Generally examining the electrical equipment and cables in dangerous zones such as cargo pump rooms and areas adjacent to cargo tanks to check for defective equipment, fixtures and wiring. The insulation resistance of the circuits should be tested and in cases where a proper record of

testing is maintained, consideration should be given to accepting recent readings.

(3) Confirmation that spares are provided for cargo area mechanical ventilation fans.

(4) Confirming that the heating arrangements, if any, for steel structures are satisfactory.

(5) The instrumentation of the cargo installation with regard to pressure, temperature and liquid lev- el is to be visually examined and to be tested by changing the pressure, temperature and level as applicable and comparing with test instruments. Simulated testing may be accepted for sen-

sors which are not accessible or for sensors located within cargo tanks or inerted hold spaces. The testing is to be include testing of alarm and safety function.

(6) The piping of the gas detection system is to be visually inspected for corrosion and damage as

far as practicable. The integrity of the suction lines between suction points and analyzing units is to be verified as far as possible. Gas Detectors are to be calibrated or verified with sample gases.

(7) The emergency shutdown system is to be tested, without flow in the pipe lines, to verify that the system will cause the cargo pumps and compressors to stop.

Rules for the Classification of Steel Ships 2015 39

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(8) Electrical equipment in gas-dangerous spaces and zones with particular respect to the following:

(A) Protective earthing(Spot check)

(B) Integrity of enclosures

is to be examined as far as practicable

(D) Function testing of pressurized equipment and of associated alarms

(E) Testing of systems for de-energizing non-certified safe electrical equipment located in spaces protected by air-locks, such as electrical motor-rooms, cargo control room, etc.

(F) Testing of insulation resistance of circuits. Such measurements are only to be made when

the ship is in a gas-free or inerted condition. Where proper records of testing are main- tained consideration may be given to accepting recent readings by the ship's crew.

(9) The instrumentation and safety systems for burning cargo as fuel are to be examined in accord- ance with (5). Inspection and maintenance of electrical equipment installed in hazardous area

shall be complied with the requirements given in IEC60079-17, Part 17.

(10) Examination for non-metallic membranes of pressure relief valves

for cargo tanks in accord-

ance with the Guidance relating to the Rules.

See Guidance

40 Rules for the Classification of Steel Ships 2015

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

Section 4 Special Survey

(Hull, Equipment and Fire-extinguishing Appliances)

401. Due range

1. The first Special Survey is to be completed within Classification Survey and thereafter within 5 years from Survey. Under 'exceptional circumstances', the Society

5 years from the date of the initial the credited date of the previous Special may grant an extension not exceeding

three(3) months to allow for completion of the Special Survey provided that the vessel is attended

and the attending Surveyor(s) so recommend(s) after the following has been carried out: Where ‘exceptional circumstance' means unavailability of dry-docking facilities; unavailability of repair fa- cilities; unavailability of essential materials, equipment or spare parts; or delays incurred by action taken to avoid severe weather conditions.

(1) Annual Survey;

(2) re-examination of Recommendations/Conditions of Class;

(3) progression of the Special Survey as far as practicable;

(4) in the case where dry docking is due prior to the end of the class extension, an underwater ex-

amination is to be carried out by an approved diving an approved company may be dispensed with in the

company. An underwater examination by case of extension of dry-docking survey

not exceeding 36 months interval provided the ship is without outstanding Recommendation/Condition of Class regarding underwater parts.

In this case, the next period of class will start from the expiry date of the Special Survey before the extension was granted.

2. In the case that the Certificate of Classification will expire when the vessel in expected to be at sea, an extension to allow for completion of the Special Survey may be granted provided there is documented agreement to such an extension prior to the expiry date of the certificate, and provided that positive arrangements have been made for attendance of the Surveyor at the first port of call, and provided that the Society is satisfied that there is technical justification for such an extension. Such an extension is to be granted only until arrival at the first port of call after the expiry date of the certificate. However, if owing to 'exceptional circumstances' the Special Survey cannot be completed at the first port of call, above Par 1 may be followed, but the total period of extension shall in no case be longer than three(3) months after the original due date of the Special Survey.

3. For surveys completed within 3 months before the expiry date of the Special Survey, the next peri- od of class will start from the expiry date of the Special Survey. For surveys completed more than 3 months before the expiry date of the Special Survey, the next Special Survey shall be assigned at the date of 5 years after the completion date of the concerned Special Survey. In cases where the vessel has been laid up or has been out of service for a considerable period because of a ma- jor repair or modification and the Owner elects to only carry out the overdue surveys, the next pe- riod of class will start from the expiry date of the Special Survey. If the Owner elects to carry out the next due Special Survey, the next Special Survey shall be assigned at the date of 5 years after the completion date of the concerned Special Survey.

4. The Special Survey including docking survey, compartment survey and thickness measurement may be commenced at the 4th Annual Survey and be progressed with a view to completion by the 5th anniversary date. See Guidance

5. When the Special Survey is commenced prior to the 4th Annual Survey, the entire survey is to be

completed within 15 months if such work is to be credited to the Special Survey.

6. A survey planning meeting is to be held prior to the commencement of the survey.

7. Concurrent crediting to both Intermediate Survey and Special Survey for surveys measurements of spaces are not acceptable.

See Guidanc

and thickness

Rules for the Classification of Steel Ships 2015 41

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

8. Continuous Survey of Hull

For ships other than those subject to Ch 3 Hull Surveys of Ships subject to the Enhanced Survey Programme and Sec 14 Hull Surveys for General Dry Cargo Ships,

(1) A part of hull items of the Special Survey can be carried out on the Continuous Survey System basis, at the request of an Owner if has been approved by the Society. A part of hull items of the Special Survey(i.e. hull continuous survey items) means the internal examination, thickness measurements, survey in dry-dock, survey for anchor/chain cables, tank pressure test and survey for hatch covers/coamings. Ships on the Continuous Survey System are not exempt from other periodical surveys.

(2) When such a system is adopted all the hull continuous survey items of the particular Special Survey must be completed at the end of the five-year Special Survey period.

(3) During each survey cycle, all the hull continuous survey items are to be surveyed (and tested, where required) in regular rotation, as far as practicable, with uniform annual share within the

five-year Special Survey period. In general, approximately 20 % of the total number of the hull

continuous survey items of the Special Survey is to be completed each year.

(4) At the end of the five-year Special Survey period, for the purpose of completion of Special

Survey, a survey at least in the scope of an Annual Survey is be carried out during which the Surveyor will satisfy himself/herself as to whether all items required to be surveyed have been

surveyed throughout, and with satisfactory results. The Surveyor may inspect individual parts again if deemed necessary by the Surveyor. See Guidance

(5) The Owner is entitled to fix the sequence in which the individual hull continuous survey items are intended to be surveyed. However, the sequence in each survey cycle shall be linked with that of the previous one in such a way that the interval between consecutive (in two cycles) examinations of each hull continuous survey items should not generally exceed five years. The survey in dry-dock may be held at any time within the five-year Special Survey period, pro- vided all the requirements of Sec 6 are also complied with. For ships more than 10 years of age, the ballast tanks are to be internally examined twice in each five-year Special Survey peri- od, i.e. once within the scope of the Intermediate Survey and once within the scope of the Continuous Survey of Hull for the Special Survey.

(6) The Surveyor may extend the inspection at his/her discretion, to other items if the inspections carried out revealed any defects.

(7) The approval for surveys to be carried out on a Continuous Survey System basis may be with-

drawn at discretion of the Society. See Guidance

402. Kinds of Special Surveys

The first Special Survey on a ship after the Classification Survey during Construction is designated as Special Survey No. 1 and subsequent Special Surveys are designated as Special Survey No. 2,

No. 3, etc. The kinds of Special

are to be determined based upon to the ship's age.

Surveys on a ship for the Classification Survey after Construction

the Special Surveys applied to the Classification Survey according

42 Rules for the Classification of Steel Ships 2015

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

403. Requirements of survey

1. The Special Survey is to include, in addition to the requirements of the Annual Survey, examina- tion, tests and checks of sufficient extent to ensure that the hull, equipment and related piping, as required in (9), are in satisfactory condition and is fit for the intended purpose for the new period of class of 5 years to be assigned, subject to proper maintenance and operation and the periodical surveys being carried out at the due dates. The examinations of the hull are to be supplemented by thickness measurements and testing as required in (9) and (13), to ensure that the structural in- tegrity remains effective. The aim of the examination is to discover substantial corrosion, significant deformation, fractures, damages, or other structural deterioration, that may be present.

(1) The vessel is to be placed in a drydock or upon a slipway and all items of 603. are to be examined. However ships subject to the "Extended Dry-docking Interval System" specified in 605., this examination can be carried out in accordance with 605.

(2) Hatch covers and coamings

The hatch covers and coamings are to be surveyed as follows:

(a) A thorough inspection of the items listed in 202. 1 (1) and (6), including Close-up Survey of hatch cover plating and hatch coaming plating, is to be carried out.

(b)

(c)

Checking of the satisfactory operation of all mechanically operated hatch covers is to made,

including:

(i) stowage and securing in open condition

(ii) proper fit and efficiency of sealing in closed condition

(iii) operational testing of hydraulic and power components, wires, chains and link drives Checking of the effectiveness of sealing arrangements of all hatch covers by hose testing or

equivalent as necessary.

(3) The anchors and chain cables are to be ranged, examined and the required complement and condition verified. The chain locker, holdfasts, hawse pipes and chain stoppers are to be exam-

ined and pumping arrangements of the chain locker tested. At Special Survey No. 2 and sub- sequent Special Surveys, chain cables are to be gauged and renewed in cases where their mean

diameter is 12 % or more below the original required nominal size.

(4) Inside of the hull is to be examined after articles not permanently attached to the hull are re-

moved as pipes, etc.

(5) All decks

far as possible and after all limber boards, mud boxes, strainers of bilge suction are opened and interior of the hull is cleaned.

are to be examined, attention being paid to the welded parts of the strength deck,

structures in way of discontinuities and corners of hatchway openings, etc. It is also to be as- certained whether the deck composition satisfactorily adheres to the plating.

(6) The protected structures are to be examined in accordance with Table 1.2.2. See Guidance

Rules for the Classification of Steel Ships 2015 43

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

Table 1.2.2 Examination of the protected structures at each Special Survey

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3 and Subsequent

1) Single bottom construction is to be examined after remov- ing at least one strake of bottom ceilings on each side of the centerline and the bilges and flooring plates in machinery space where deemed necessary. Special at- tention is to be paid to as- certain that the cement of other composition laid on the inner surface of bottom plat- ing is in satisfactory condition.

2) Where a double bottom is fitted, a sufficient amount of ceiling as deemed necessary by the Surveyor is to be re- moved and the condition of the top plating examined.

In addition to the requirements of Special Survey No. 1,

1) Throughout the ship, in way of single bottoms one strake of ceilings on each side near to the keelson and in way of dou- ble bottoms and deep water or oil tanks ceilings at bilge (including limber hole) and cen- tre line part, lower parts of pil- lars and bulkheads, shaft tunnels and any other parts deemed nec- essary by the Surveyor are to be removed and the internal structures are to be examined.

2) Shell plating in way of the side scuttles is to be examined with special attention, and where deemed necessary by the Surveyor, the thickness of the said parts and any other parts of the structure being ex- cessively corroded is to be gauged.

3) The condition of steel deck plat- ing under wooden deck is to be examined by drilling the worn parts of wooden deck.

In addition to the requirements of Special Survey No. 2,

1) All ceilings, sparrings, wood linings, casings in the holds, and floor plates in the machinery spaces are to be re- moved in sufficient quantities to enable the Surveyor to examine the conditions of structure under them. The ship is to be made free from rust inside and out- side in order to expose for examina- tion the framing and plating together with discharges, scuppers, air and sounding pipes, and the steel-work is to be examined.

2) Wood planks and other covering on steel decks are to be removed as re- quired by the Surveyor and examined. Cement chocks on the ship's sides at bilges and decks are to be examined, portions of them are to be removed as deemed necessary by the Surveyor so that the condition of the shell plating and adjacent steel-work can be ascertained.

3) Where deemed necessary by the Surveyor, the lining in way of the side scuttles is to be removed as re- quired by the Surveyor, and the shell plating examined.

4) Where the holds are insulated for car- riage of refrigerated cargoes, the lim- bers and hatches are to be removed, and where considered necessary by the Surveyor, a sufficient amount of in- sulation is to be removed in each of the chambers to enable the Surveyor to ascertain the condition of the plat- ing and framing.

44 Rules for the Classification of Steel Ships 2015

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(7) Internal examination of tanks and spaces

(a) All spaces including tanks and spaces in accordance with Table 1.2.3 are to be internally examined.

(b)

(c)

(d)

When tanks are examined internally, the plating and framing, bilges and drain wells, sound- ing, venting, pumping and drainage arrangements within the tanks and spaces are to be

examined.

Where provided, the condition of corrosion prevention system of ballast tanks is to be examined. For ballast tanks, excluding double bottom ballast tanks, where a hard protective coating is found in POOR condition and it is not renewed, where soft or semi-hard coating has been applied, of where a hard protective coating was not applied from time of con- struction, the tanks in question are to be examined at annual intervals. Thickness measure- ments are to be carried out as deemed necessary by the Surveyor. See Guidance

When such breakdown of hard protective coating is found in double bottom ballast tanks and it is not renewed, where a soft or semi-hard coating has been applied, or where a hard protective coating was not applied from the time of construction, the tanks in question may

be examined at annual intervals. When considered necessary be the Surveyor,

or where ex-

tensive corrosion exists, thickness measurements are to be carried out. See Guidance

Table 1.2.3 Minimum

Survey

requirements for Internal examination of tanks and spaces at each Special

No. of Special Survey

Tanks or Spaces

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3

Special Survey No. 4 and Subsequent

Cargo holds(and their 'tween decks where fitted), cargo tanks

Double bottom tanks, deep tanks, ballast tanks, peak tanks

Pump room, pipe tunnel, duct keel, machinery spaces, dry spaces, coffer- dams, void spaces

Fuel oil tanks

Engine room

Cargo length area

Half, minimum 2

Lubrication oil tanks

Fresh water tanks

(NOTES)

Purpose of tank has a priority in application.

: All tanks and spaces are to be internally examined.

: As follows:

1) These requirements apply to tanks of integral (structural) type.

2) If a selection of tanks is accepted to be examined, then different tanks are to be examined at each Special Survey, on a rotational basis.

3) Peak tanks (all uses) are subject to internal examination at each Special Survey.

4) At Special Survey No. 3 and subsequent surveys, one deep tank for fuel oil in the cargo length area is to be included, if fitted.

Rules for the Classification of Steel Ships 2015 45

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(8) The arrangements for mooring and anchoring are to be examined and their performances are to be tested. However, the performance tests may be dispensed with at the discretion of the Surveyor. See Guidance

(9) The performance of hand bilge pumps is to be tested. All bilge and ballast piping systems are to be examined and operationally tested to working pressure to attending Surveyor's satisfaction to ensure that tightness and condition remain satisfactory.

(10) Fire protection, fire equipment and its operation tests.

(11) In tanks to which an approved measure of corrosion control in accordance with Pt 3, Ch 1, Sec 8 is applied, the condition of coating or corrosion protection is to be examined.

(12) For container ships, equipped with container securing arrangements in accordance with Pt 7, Ch 4, 1002. of the Rules, the container securing arrangements are to be examined as follows:

(a) Visual inspection for cell guides and securing devices(cracks, fractures, etc. of welds).

(b) Confirmation of comparison between on-board record book and securing devices.

(13) Thickness measurement See Guidance

(a) Thickness measurements are to be carried out in accordance with Table 1.2.4. The

Surveyor may extend

the thickness measurements as deemed necessary. When thickness

measurements indicate substantial corrosion, the extent of thickness measurements is to be

increased to determine

areas of substantial corrosion. Table 1.2.5 may be used as guidance

(b)

for these additional thickness measurements. These extended thickness measurements are to be carried out before the survey is credited as completed.

For the ships specified by the Society, the longitudinal strength is to be evaluated after car-

rying out the thickness measurements in accordance with the requirement specified in (a)

above.

one(1) valid.

However, the only thickness measurement records which have been measured within

year period from the date of the longitudinal strength evaluation shall be considered

46 Rules for the Classification of Steel Ships 2015

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

Table 1.2.4 Minimum requirements for Thickness Measurements at Special Survey

1. General Ships

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3

Special Survey No. 4 and Subsequent

1. Suspect areas throughout the vessel

2. One transverse sec- tion of deck plat- ing in way of a cargo space within the

amidships 0.5

1. Suspect areas throughout the vessel

2. Two transverse sections within the amidships 0.5

in way of two different cargo spaces4), 5), 6), 7)

3. All cargo hold hatch cov- ers and coamings(plating and stiffeners)

4. Internals in forepeak and afterpeak tanks

5. All transverse bulkheads in all cargo tanks8)

6. All transverse bulkheads in all ballast tanks8)

1. Suspect areas throughout the vessel

2. A minimum of three transverse sec- tions in way of cargo spaces within the amidships 0.5 5), 6), 7)

3. All cargo hold hatch covers and coamings (plating and stiffeners)

4. Internals in forepeak and aftpeak tanks

5. All exposed main deck plating full length

6. Representative exposed superstructure deck plating (poop, bridge and forecastle deck)

7. Lowest strake and strakes in way of 'tween decks of all transverse bulkheads in cargo spaces together with internals in way

8. All wind and water strakes, port and starboard, full length

9. All keel plates full length. Also, additional bottom plates in way of cofferdams, machinery space and aft end of tanks

10.Plating of seachests. Shell plating in way of overboard discharges as considered necessary by the attend- ing Surveyor

11.All transverse bulkheads and one web frame ring in all cargo tanks8)

12.All transverse bulkheads and all web frame ring in all ballast tanks8)

(NOTES)

1) In application to this table, General Ships means ships except Other Ships in Table 1.2.4, 2.

2) Thickness measurement locations are to be selected to provide the best representative sampling of areas

likely to be most exposed to corrosion, considering cargo and ballast history and arrangement and con- dition of protective coatings.

3) Thickness measurements of internals may be specially considered by the Surveyor if the hard protective coating is in GOOD condition.

4) For ships more than 100 meters in length, at Special Survey No. 3, thickness measurements of exposed deck plating within amidship 0.5 may be required.

5) For ships less than 100 meters in length, the number of transverse sections required at Special Survey No.

3 may be reduced to one (1), and the number of transverse sections required at Special Survey No. 4 and subsequent may be reduced to two (2).

6) For the pure car carrier, the extent of thickness measurement for transverse sections may be considered as follows:

- Exposed deck plate, side shell plate, bottom shell plate, inner bottom plate and longitudinal members in double bottom spaces.

7) Where the evaluation of longitudinal strength is required, all longitudinal structural members at the corre- sponding sections are to be gauged.

8) This requirement is to be applied only for tankers(including barges) carrying liquid cargo.

Rules for the Classification of Steel Ships 2015 47

Pt 1 Classification and Surveys

Ch 2 Periodical and Other Surveys Pt 1, Ch 2

Table 1.2.4 Minimum requirements for Thickness Measurements at Special Survey

2. Other Ships

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3

Special Survey No. 4 and Subsequent

1. Suspect areas throughout the vessel

2. One transverse section of deck plating5), side shell plating and bottom plating within the amidships 0.5

1. Suspect areas throughout the vessel

2. Two transverse sec- tions of deck plating5), side shell plating and bottom plating within the amidships 0.5

3. Internals in forepeak and afterpeak tanks

1. Suspect areas throughout the vessel

2. Two transverse sections of side shell plating within the amidships 0.5

3. Full length,

1) All exposed main deck plating5)

2) Representative exposed superstructure deck plating(poop, bridge and fore- castle deck)

3) Selected wind and water strakes

4) Bottom plating

5) Flat keel plating

4. Internals in forepeak and aftpeak tanks

(NOTES)

1) In application to this table, Other Ships means the ship specified as follows except Special Purpose Ship - Waste in Annex 1-1, 1.1 of the Guidance relating to the Rules.

- the ship type 12, 13

- the ship less than 500 GT and not engaged on international voyages among ship type 15, 16, 17, 19, 20 and 26 to 30

2) Thickness measurement locations are to be selected to provide the best representative sampling of areas likely to be most exposed to corrosion.

3) Thickness measurements of internals may be specially considered by the Surveyor if the hard protective coating is in GOOD condition.

4) When the evaluation of longitudinal strength is required, all longitudinal members at the corresponding sec- tions are to be gauged.

5) For fishing vessel, thickness measurement requirements in way of deck(gutter water way part and hatch coaming part) may be modified at the discretion of the Surveyor if the structure remains effectively pro- tected against corrosion by a permanent type special coating.

Table 1.2.5 Requirements for extent of thickness measurement at those areas of substantial corrosion

Structural Member

Extent of Measurement

Pattern of Measurement

Plating

Suspect area and adjacent plates

5 point pattern over 1 m

Stiffeners

Suspect area

3 measurements each in line across web and flange

48 Rules for the Classification of Steel Ships 2015

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(14) Tank testing

(a) Tank testings are to be carried out in accordance with Table 1.2.6.

(b) Tanks may be tested afloat at the discretion of the Surveyor, provided that the internal ex- amination of the bottom is also carried out afloat.

Table 1.2.6 Minimum requirements for tank testing

No. of Special Survey Tanks

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3

Special Survey No. 4 and Subsequent

Double bottom tank, deep tank, bal- last tank, peak tank and other tank (including holds adopted for the car- riage of salt water ballast)

Fuel oil tank, lubrication oil tank, fresh water tank

(NOTES)

1. Purpose of tank has a priority in application.

2. Boundaries of tanks are to be tested with a head of liquid to the top of air pipes or to near the top of hatches for ballast/cargo holds. Boundaries of fuel oil, lube oil and fresh water tanks are to be tested with a head of liquid to the highest point that liquid will rise under service conditions.

3. : All tanks are to be tested.

: Tank testing of fuel oil, lube oil and fresh water tanks may be specially considered based on a sat- isfactory external examination of the tank boundaries, and a confirmation from the Master stating that the pressure testing has been carried out according to the requirements with satisfactory results.

4. For the cargo tanks(except cargo tanks for the liquefied natural gas), tests may be dispensed with, provided after an external and internal examination of the tanks, the Surveyor is satisfied with the condition of the tanks.

5. The Surveyor may extend the testing as deemed necessary. See Guidance

(15) Where considered necessary by the Surveyor, the effectiveness of shell plating, watertight bulk- heads, shaft tunnels, watertight doors and the closing appliances of openings on superstructure end bulkheads is to be confirmed. See Guidance

(16) Engine room structure is to be examined. Particular attention is to be given to tank tops, shell plating in way of tank tops, brackets connecting side shell frames and tank tops, and engine

room bulkheads in way of tank top and bilge wells. Particular attention is to be given to the

sea suctions, sea water cooling pipes and overboard discharge valves and their connections to the shell plating. Where wastage is evident or suspect, thickness measurements are to be carried out, and renewals or repairs made when wastage exceeds allowable limits.

Rules for the Classification of Steel Ships 2015 49

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

(17) For all ships except for passenger ships, automatic air pipe heads are to be completely exam- ined(both externally and internally) as indicated in Table 1.2.7. For designs where the inner parts cannot be properly inspected from outside, this is to include removal of the head from air

pipe. Particular attention is to be paid to the condition of the zinc coating from galvanized steel.

in heads constructed

Table 1.2.7 Survey requirements for automatic air pipe heads at Special Survey

Special Survey No. 11), 2)

Special Survey No. 21), 2)

Special Survey No. 3 and Subsequent3)

· Two air pipe heads, one port and one starboard, located on the exposed decks in the forward 0.25 , preferably air pipes serving ballast tanks

· Two air pipe heads, one port and one starboard, on the exposed decks, serving spaces aft of 0.25 , preferably air

pipes serving ballast tanks

· All air pipe heads located on the exposed decks in the forward 0.25

· At least 20% of air pipe heads on the exposed decks serving spaces aft of 0.25 , preferably air pipes

serving ballast tanks

· All air pipe heads located on the exposed decks

(NOTES)

1) The selection of air pipe heads to be examined is left to the attending Surveyor.

2) According to the results of this examination, the Surveyor may require the examination of other heads lo- cated on the exposed deck.

3) Exemption may be considered for air pipe heads where there is substantial evidence of replacement after the last Special Survey.

(18) Where a stability instrument is provided on-board, all approved test loading be examined.

conditions are to

(19) For ships provided with the equipment employed in the mooring of ships at single point

mooring specified in Pt 4, Ch 10, 101. 3 and assigned the additional class notation "EQ-SPM", the function and deformation condition of this equipment employed in the mooring of ships at

single point mooring and hull supporting structures are to be closely checked and confirmed its

satisfactory conditions. Where deemed necessary, non-destructive examinations

See Guidance

may be required.

2. For ships

chemical

subject to the enhanced survey programme such as bulk carriers, oil tankers and

tankers, etc., in addition to items of Par 1 the additional requirements in accordance

with Ch 3 are to be taken. However, if the duplicated survey items are exist, these are not need to be applied twice.

3. For additional requirements applicable to water level detectors fitted on single hold cargo ships, re- fer Sec 14.

4. In addition to Par 1, Ch 14 is also to be taken for general dry cargo ships and Ch 15 is also to be taken for liquefied gas carriers. However, if the duplicated survey items are exist, these are not need to be applied twice.

5. In addition to Par 1, Ch 16 is also to be taken for shell and inner doors, etc. of RoRo ships.

However, if the duplicated survey items are exist, these are not to be applied twice.

6. In addition to Par 1, relevant requirements of Ch

applicable.

17 and/or Ch 18 are also to be taken if

404. Fire-extinguishing appliances

For fire-extinguishing appliances, the survey is to be the Rules. See Guidance

in accordance with the Guidance relating to

50 Rules for the Classification of Steel Ships 2015

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Ch 2 Periodical and Other Surveys Pt 1, Ch 2

Section 5-1 Special Survey

(Machinery, Electrical Installations and Additional Installations)

501. Due range

The due range of Special Survey(Machinery, electrical installations and additional installations) is to be complied with the requirements specified in 401.

502. Requirements of survey

At the Special Survey(Machinery, electrical installations and additional installations), in addition to the requirements for Intermediate Survey, the following requirements are to be complied with.

1. Requirements of main engines and auxiliary engines

(1) At the Special Survey for main engines, the following requirements are to be conformed to with respect to the type of engine, where deemed necessary by the Surveyor, control devices, govern- ing devices and safety devices are to be tested. See Guidance

(a) For internal combustion engines, cylinders, cylinder covers, pistons, piston rods and connect- ing rods, crosshead(including pins, bearings and guides), crank shafts and all bearings, elas-

ticity couplings, cam

fuel oil pumps and

coolers, filter or oil

shafts and their driving gears, essential valves and valve arrangements,

fittings, scavenging pumps, scavenging blowers, superchargers, inter-

separators and safety devices, clutches, reverse gears, attached pumps

(b)

(c)

and coolers, crank cases and explosion relief devices are to be opened up and examined,

and the deflections of crank arms are to be measured. And, effectiveness of vibration damp- er is to be confirmed and balancers are to be examined.

However, those total running hours not more than the overhauling time recommended by the

manufacturer since the previous overhauling survey, the survey is to be in accordance with the Guidance relating to the Rules. See Guidance

Examinations for high-rotating-speed internal combustion engines of specific construction

such that complete engine overhaul is required for surveys may be in accordance with the Guidance relating to the Rules. See Guidance

Where the propulsion steam turbines are of a well known type, and fitted with rotor posi-

tion indicators and vibration indicators of an approved type, as well as measuring equipment of steam pressure at proper locations along the steam flow, and the arrangements for change over in case of emergency operation of the plant are readily operable, the first Special

Survey may be limited to be examination of rotor bearings, thrust bearings and flexible cou- plings, provided the Surveyor has been satisfied from operation service records and power trials subsequent to the survey, that the turbine plant is in good working condition. Turbine casings should be opened at the next second Special Survey and subsequent Special Surveys.

(2) For auxiliary engines, the requirements corresponding to those of the main engine are to be conformed to.

2. Requirements of machinery except for main engines and auxiliary engines

(1) All shafts(except the propeller and stern tube shafts), thrust blocks and line shaft bearings are to be examined. The lower halves of bearings need not be exposed, if alignment and wear are found satisfactory.

(2) Reduction gears are to be examined. Where deemed necessary by the Surveyor, reduction gears are to be opened up and the gear wheels, pinions, gear shafts and bearings are to be examined.

See Guidance

(3) Air compressors with their intercoolers, filters and/or oil separators and safety devices, and all pumps and components used for essential services are to be opened up as considered necessary by the Surveyor and examined. See Guidance

(4) Operational conditions of steering gear are to be examined. Where deemed Surveyor, main parts are to be opened up and examined. See Guidance

(5) Operational conditions of windlass, mooring winches and cargo winches are

Where deemed necessary by the Surveyor, main parts of them are to be opened

See Guidance

necessary by the

to be examined. up and examined.

(6) Evaporators are to be opened up and examined. Their safety valves are also to be checked un- der working condition.

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(7) The foundation bolts and chocks of main and auxiliary engines, gear casings, thrust blocks and line shaft bearings are to be examined.

(8) All air receivers and other pressure vessels for essential services together with their mountings

and safety devices are to be opened up and examined internally and externally. If internal ex- amination of them is not practicable, they are to be tested hydraulically to 1.5 times the work- ing pressure, and if considered necessary by the Surveyor, performance test of safety valves for the above mentioned devices is to be carried out. See Guidance

(9) Pumping and piping arrangements

(a) Valves, cocks and strainers of the bilge system including the emergency bilge suction valves are to be examined. And where deemed necessary by the Surveyor, opening up examination

(b)

of above items or effectiveness test of the bilge system is to be carried

Guidance

The fuel oil, feed and lubricating oil systems, the ballast pipe connections and rangement to the ballast holds and all filters, heaters, coolers and condensers

out. See

blanking ar- for essential

services are to be opened up and examined. The pressure tests may be carried out, includ-

ing safety devices, where deemed necessary by the Surveyor. See Guidance

and externally and, if considered necessary by the Surveyor, they are to be tested to the pressure specified for new tanks. At the Special Survey No. 1, internal examination of the tanks may be dispensed with, provided they are found satisfactory in external examination. All mountings, fittings and remote controls are to be examined as far as practicable. See Guidance

(10) Where deemed necessary by the Surveyor, the performance tests of pressure gauges, revolu- tions and thermometers are to be made. See Guidance

(11)

(12)

Where automatic and remote controls are fitted up for essential machinery, they are to be test- ed to demonstrate that they are in good working order.

Main steam pipes, where considered necessary by the Surveyor are to be examined after re-

(13)

moving the lagging indicated by as necessary. See Guidance

The following safety inspections given in Pt 5, Ch 6, 1201. 1.

the Surveyor. The thickness of pipes is also to be checked

are to be carried out for the cargo refrigerating machinery

(a) Leaks of the refrigerants are condition.

to be tested while the machinery is examined in running

(b) Coils of coil type condensers and evaporators, shell tube type condensers and shells of re-

ceivers are to be tested at a pressure of at least 90 percent of the design pressure. Where,

however, relief valves attached to them are adjusted to a pressure less than the design pres- sure, the test pressure may be reduced to a pressure of 90 percent of the pressure to which

the relief valves are adjusted. The above pressure test may be dispensed with except for

those using NH3 or CH3Cl as refrigerants.

(14) Essential parts of incinerators are to be opened up and internally examined.

3. Electrical equipment

In the Special Survey for electrical equipment, the following requirements are to be conformed to.

(1) Main and emergency switchboards, section panels, and sub-distribution fuse panels are to be ex- amined and overcurrent protective devices and fuses inspected to verify that they provide suit- able protection for their respective circuits.

(2) The generators are to be running under the loaded condition, either separately or in parallel and the performances of speed governors, switches and circuit breakers are to be tested.

(3) The insulation resistances of generators, switchboards, motors, cables and other electrical equip-

ment are to be tested and adjusted if it is

Pt 6, Ch 1, 1801. 1. However, this test measured records remain efficient and they

1, 1801. 1.

found not to comply with the requirements given in may be dispensed with, where it is found that the

comply with the requirements specified in Pt 6, Ch

(4) Where deemed necessary by the Surveyor, the lighting arrangements, internal communication and signalling systems, mechanical ventilation systems, and other electrical equipment are to be test- ed for effectiveness. See Guidance

4. The surveys for water jet propulsion systems and azimuth or rotatable thruster are to be carried out in accordance with the Guidance relating to the Rules. See Guidance

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5. The surveys for additional installations(cargo refrigerating automatic and remote control systems, dynamic positioning monitoring systems, diving systems and high voltage shore

installations, cargo handling appliances, systems, navigation bridge systems, hull connection systems, etc.) are to be car-

ried out in accordance with the requirements specified in Pt 9, etc.

6. Gas-fuelled ships other than ships carrying liquefied gases in bulk and ships carrying CNG in bulk are also to meet with the requirements in Ch 2, 203. of the Guidance for Gas-fuelled Ships, in addition to the requirements in this section.

7. Where CMS specified in Sec 9 is applied, the performance test for safety devices including the items other than CMS are to be surveyed.

8. A mooring trial is to be carried out to attending Surveyor's satisfaction to confirm satisfactory oper- ation of main and auxiliary machinery.

9. In addition applicable.

to Par 1 through Par 8, relevant requirements of Ch 18 are also to be taken if

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Section 5-2 Special Survey (Additional Requirements to Ship Types)

The Special Survey(Additional requirements to ship types), in addition to the requirements for Intermediate Survey, shall be carried out as follows.

1. Oil tankers(including tankers) :

The additional requirements are to be surveyed as follows,

(1) For pump room, in particular, the foundations and gland seals of pumps, stuffing box, sealing arrangements of all penetrations of bulkheads and ventilating arrangements are to be examined.

(2) Condition of the inner surface of the bottom plating in cargo tanks is to be examined in order

to ascertain that there is no excessive pitting of the plating.

(3) Bell mouths of the cargo suction pipes in cargo tanks are to be removed to enable examination of the shell plating and bulkheads in that vicinity.

(4) All piping systems in the tanks and spaces, cargo oil pipes on weather deck, breather valves, flame screens on vents, purge systems, gas free systems, inert gas systems and other piping sys-

tems are to be examined. When considered necessary by the Surveyor, pressure tests and/or

gaugings for pipings are to be carried out. See Guidance

(5) For inert gas system, the following items are to be examined, when appropriate, opened-up.

See Guidance

(A) Major parts

(B) Major parts

(D) Major parts

(E) Major parts

of inert gas scrubbers. of inert gas blowers.

of non-return devices(e.g., deck water seal). of flue gas isolating valves.

of P/V breakers.

2. Chemical tankers :

The additional requirements are to be surveyed as follows,

(1) Foundation of cargo containments, including supports, keys and anti-rolling/anti-pitching devices are to be examined.

(2) Closing and sealing devices of the domes of cargo containments, where they penetrate decks are to be examined.

(3) The pumps are to be opened and examined.

3. Liquefied gas carriers :

The additional requirements are to be surveyed as follows,

(1) Cargo containment survey

(A) All cargo tanks are to be examined internally.

(B) Special attention is to be paid to the cargo tank and insulation in way of chocks, supports, keys and other parts which consist of the foundation of tanks. Removal of insulation may

be required in order to verify the condition of the tank or the insulation itself if found nec- essary by the Surveyor. Where the arrangement is such that the insulation cannot be exam- ined, the surrounding structure of the wing tanks, double bottom tanks and cofferdams are to be examined for cold spots when the cargo tanks are in the cold condition unless voyage record together with the instrumentation give sufficient evidence of the integrity of the in- sulation system. See Guidance

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Non-destructive testing is to supplement cargo tank inspection with special attention to be given to the integrity of the main structural members, tank shell and highly stressed parts,

including welded connection as deemed necessary by the Surveyor. However, for type C tanks, this does not mean that non-destructive testing can be dispensed with totally. The fol- lowing items are, inter alia, considered as highly stressed parts: See Guidance

- cargo tank supports and anti-rolling/anti-pitching devices

- web frames or stiffening rings

- swash bulkhead boundaries

- dome and stump connections to tank shell

- foundations for pumps, towers, ladders, etc.

- pipe connections

For the independent tank type B, the extent of non-destructive testing shall be given in a programme specially prepared for the cargo tank design.

(D) The tightness of all cargo tanks is to be verified by an appropriate procedure. Provided that

the effectiveness of the ships's gas detection equipment has been confirmed, it will be ac- ceptable to utilize this equipment for the tightness test of independent tanks below deck.

(E) Where findings of (A) to (D) or an examination of the voyage records raises doubts as to

the structure integrity of a cargo tank, a hydraulic or hydro-pneumatic test is to be carried out. For integral tanks and for independent tank type A and B, the test pressure is to be carried out in accordance with proper pressure based on design of each tank. For in-

dependent tank type C, the test pressure is not to be less than 1.25 times the MARVS.

(F) At every other special survey(i.e., 2nd, 4th, 6th, etc) all independent cargo tank type C are to be either:

(a) Hydraulically or hydro-pneumatically tested to 1.25 times MARVS, followed by non-de- structive testing in accordance with (C), or

(b) Subjected to a thorough, planned non-destructive testing. This testing is to be carried

out in accordance with a programme specially prepared for the tank design. If a special program does not exist, the following applies:

- cargo tank supports and anti-rolling/anti-pitching devices

- stiffening rings

- Y-connections between tank shell and a longitudinal bulkhead of tanks

- swash bulkhead boundaries

- dome and stump connections to the tank shell

- foundations for pumps, towers, ladders etc.

- pipe connections

At least 10 % of the length of the welded connections in each of the above mentioned

areas is to be tested. This testing is to be carried out internally and externally as applicable. Insulation is to be removed as necessary for the required non-destructive test.

(2) As far as practicable all hold spaces and hull insulation(if provided), secondary barriers and tank supporting structures are to be visually examined. The secondary barriers is to be checked for their effectiveness by means of a pressure/ vacuum test, a visual inspection or another acceptable method.

(3) Membrane and semi-membrane tank

(A) For membrane and semi-membrane tanks systems, inspection and testing are to be carried out in accordance with programmes specially prepared in accordance with an approved method for the actual tank system.

(B) For membrane containment systems, a tightness test of the primary and secondary barrier shall be carried out in accordance with the system designers’ procedures and acceptance criteria as approved by the classification society. Low differential pressure tests may be

used for monitoring the cargo containment system performance, but are not considered an

acceptable test for the tightness of the secondary barrier.

(C) For membrane containment systems with glued secondary barriers if the designer’s thresh- old values are exceeded, an investigation is to be carried out and additional testing such as thermographic or acoustic emissions testing should be carried out.

(4) The pressure/vacuum relief valve, rupture spaces and hold spaces are to be opened, design. See Guidance

disc and other pressure relief devices for interbarrier tested and readjusted as necessary, depending on their

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(5) The pressure relief valves for the cargo tanks are to be opened for examination, adjusted, func- tion tested, and sealed. If the cargo tanks are equipped with relief valves with non-metallic membranes in the main or pilot valves, such non-metallic membranes are be replaced. Where a proper record of continuous overhaul and retesting of individually identifiable relief valves is maintained, consideration will be given to acceptance on the basis of opening, internal examina- tion, and testing of a representative sampling of valves, including each size and type of lique- fied gas or vapor relief valve in use, provided there is logbook evidence that the remaining valves have been overhauled and tested since crediting of the previous Special Survey.

(6) Piping systems

(A) The cargo, liquid nitrogen and process piping systems, including valves, actuators, compensators etc. are to be opened for examination as deemed necessary. Insulation is to be removed as

deemed necessary to ascertain the condition of the pipes. If the visual examination raises doubt

as to the integrity of the pipelines, a pressure test at 1.25 times the MARVS for the pipeline is to be carried out. After reassembly the complete piping systems are to be tested for leaks.

See Guidance

(B) The pressure relief valves are to be function-tested. A random selection of valve is to be opened for examination and adjusted.

(7) Components

Cargo pumps, compressors, process pressure vessels, liquid nitrogen tanks, heat exchangers and

other components, including prime movers, used in connection with cargo handling boil-off burning are to be examined.

(8) Miscellaneous

(A) Systems for removal of water or cargo from interbarrier spaces and holds are ined and tested as deemed necessary. See Guidance

(B) All gas-tight bulkhead are to be inspected. The effectiveness of gas-tight shaft be verified.

and methane

to be exam- sealing is to

ing are to be examined.

(D) It is to be verified that all cargo piping system are electrically bonded to the hull.

bilg-

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Section 6 Docking Survey

601. Due range See Guidance

1. There is to be a minimum of two examinations of the outside of the ship's bottom and related items during each five-year Special Survey period. One such examination is to be carried out in conjunction with the Special Survey. In all cases the interval between any two such examinations is not to exceed 36 months.

2. Notwithstanding the requirements specified in Par 1 above, for passenger ships, submersibles, nu- clear ships, hydrofoils, air cushion vehicles, high speed crafts, the docking survey is to be a part of the Special, Intermediate or Annual Survey. But the Docking Survey may be subject to the re- quirements as provided separately by the Society.

3. In addition to Par 1 through Par 2, relevant requirements of Ch 18 are also to be taken if applicable.

602. Extension of survey

The Docking Survey may be extended upon the request of the Owner as follows:

1. Where the Special Survey is extended in accordance with 401. 1 and 2, an extension of Docking Survey can be granted in accordance with the requirements specified in 401. 1 (4).

2. An extension of Docking Survey of 3 months beyond the due date can be granted upon the appro- val of the Society in exceptional circumstances defined in 401. 1.

603. Requirements of survey

1. The ship is to be placed in a drydock or on a slipway, and it is to be placed on blocks of suffi- cient height and with the necessary staging to permit the examination of elements such as shell plating including bottom and bow plating, stern frame and rudder, sea chests and valves, propeller, etc.

2. The shell plating is to be examined for excessive corrosion, or deterioration due to chafing or con- tact with the ground and for any undue unfairness or buckling. Special attention is to be paid to bilge keels. See Guidance

3. Rudder, rudder pintles, rudder shafts and couplings and stern frame are to be examined. If consid- ered necessary by the Surveyor, the rudder is to be lifted or the inspection plates removed for the examination of pintles. The clearance in the rudder bearings is to be ascertained and recorded. If it exceeds the values given below, the bush is to be adjusted. Where applicable, pressure test of the rudder may be required as deemed necessary by the Surveyor. See Guidance

Pintle (Diameter of Pintle : )		Allowable clearance
50 mm		3.0 mm
50 mm < 100 mm		5.0 mm
100 mm <		0.01	+ 4.0 mm
Neck bearing (Diameter of rudder stock :	)	0.01	+ 2.0 mm

4. Sea chests and their gratings, sea connections and overboard discharge valves and cocks and their

fastenings to the hull or sea chests are to be examined. Valves and cocks could

Docking Survey as a part of Special Survey unless considered necessary by the

Guidance

be opened

Surveyor.

up at

See

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5. The propeller is to be examined. The efficiency of the oil gland, if fitted, is to be ascertained and clearance or weardown in the stern bush are to be measured. For controllable pitch propellers and special type propellers, the sealing and tightness conditions are to be ascertained and recorded. In the case where the pitch control device is fitted, it is to be ascertained that the device is in good working order. However, if considered necessary by the Surveyor, the device is to be opened up for further examination. See Guidance

6. Visible parts of side thrusters and anti-rolling devices are to be examined. Other propulsion systems which also have manoeuvring characteristics (such as waterjet propulsion systems, azimuth or rotat- able thrusters/directional propellers, vertical axis propellers) are to be examined externally with fo- cus on the condition of gear housing, propeller blades, bolt locking and other fastening arrange- ments and sealing arrangement of propeller blades, propeller shaft and steering column shall be verified. Furthermore the surveys are to be carried out in accordance with the Guidance relating to the Rules. See Guidance

7. The clearance between the propeller shaft and the after bearing of

stern tube as well as the shaft

bracket if fitted is to be measured for water-lubricated stern tube bearings, and if it exceeds the

values given below, the bearing is to be replaced or repaired. Stern tube shafts are also to be com- ply with these requirements.

Diameter of propeller shaft	Allowable clearance
230 mm	6.0 mm
230 m m < 305 mm	8.0 mm
305 mm <	9.5 mm

8. For ships with IWS notation, the requirements to are to be confirmed for continuing compliance.

assign the IWS notation specified in 604. 3. (8)

9. For ships with EDD notation, the requirements to assign the EDD notation specified in 605. 2. are to be confirmed for continuing compliance.

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604. In-water Survey

1. The Society may accept an In-water Survey in lieu of the intermediate docking between Special Surveys required in a five year period on ships less than 15 years of age. Special consideration of the Society is to be given to ships of 15 years of age or over before being permitted to have such In-water Survey. For ships with ESP notation of 15 years of age and over, such In-water Surveys are not to be allowed. See Guidance

2. In-water Survey in lieu of the Docking Survey may be restricted at the discretion of the Society if there are record or indication of abnormal deterioration, existing outstanding recommendation for re- pairs, or damage to underwater part of the shell plating, the rudder, the propeller, the propeller shaft, sea connections or overboard discharge valves.

3. Where an In-water Survey in lieu of the intermediate docking between Special Surveys is desired, the survey procedures are as follows:

(1) Plans and documents

The following plans and documents are to be submitted to the Surveyor and the divers.

(a) Plans of shell plating below waterline showing the location and sizes of shell openings, lo- cation of bottom plugs, location of appendages, location of measuring position of navigation

instruments, location of bilge keels, location of water-tight and oil-tight bulkheads, and loca- tion of welded seams and butts including any doublers and straps.

(b) Detailed information or drawing of constructions and arrangements indicated in (2) below.

(2) Constructions, arrangements, etc.

Where an In-water Survey in lieu of the docking survey is desired, the following construction and arrangements are to be made.

(a)

(b)

(c)

(d)

Rudder arrangements are to be such that rudder pintle clearances can be checked.

Rope-guard ring plates are to be of such construction as to facilitate the inspection of shaft- ings between propeller hubs and stern frame boss.

In case of water lubricated stern tube bearings, the construction is to be suitable for con-

firmation and measurement of the clearance between the propeller shafts and these bearings. In case of oil lubricated stern tube bearings, suitable means of ascertaining the performances

of stern tube bearings including oil sealing devices are to be provided.

(3) Condition of survey

(a)

(b)

(c)

(d)

(e)

In the lightest draught condition as possible.

The condition of hull below waterline and hull bottom is can be ascertained.

The sea state conditions such as tidal stream, current, swell, etc. at the location of the sur- vey are to be calm and peaceful. The in-water visibility and the cleanliness of the hull be- low the waterline is to be clear enough to permit a meaningful examination which allows

the Surveyor and diver to determine the condition of the plating, appendages and the welding.

The distance between hull bottom and sea bottom is to be enough.

In-water Survey is to be carried out by a company approved by the Society.

(4) Survey extent

(a) The In-water Survey is to provide the information normally obtained from a Docking

Survey. Special consideration shall be given to ascertaining rudder bearing clearances and stern bush clearances of oil stern bearings based on a review of the operating history, on board testing and stern oil sample reports. These considerations are to be included in the

proposals for In-water Survey which are to be submitted in advance of the survey so that satisfactory arrangements can be agreed with the Society.

(b) General inspection for sea connections and overboard discharge valves, at inside of the ship

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(5) Practice of In-water Survey

(a)

(b)

(c)

(d)

(e)

(f)

(g)

In-water Survey is to be carried out in the presences of the Surveyor and the Owner. All preparations required for an In-water Survey are to be made by the Owner.

The Surveyor shall confirm the preparation for survey and the operational condition of In-water Survey equipment.

The Surveyor shall know the status of the ship in advance, and inform the diver before div-

ing of survey items and measurement.

The means are to be provided to maintain good communication between the Surveyor and the underwater diver at all times.

The Surveyor may confirm the status of survey by in-water photographs, cameras, television monitors and other means.

In a job site, the results of In-water Survey shall be immediately reported to the Owner,

and the Owner and diver sign their names on the Diving Report, confirming the result.

(6) Diving report

The following items are to be stated in the diving report.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

Name of diving company Name of diver and licence No.

Date and place of survey

Name of equipment used in In-water Survey

Name of ship, classification character and notations, gross tonnage, port of registry, owner of ship

Drafts(forward and aft)

Contents and results of survey(damage configuration and status, etc.)

(7) Further surveys

(a) The Surveyor may require the further examination such as internal examinations, thickness measurement, etc. where deemed necessary by the Surveyor as a result of the In-water Survey See Guidance

(b) If the result of In-water Survey reveals damage or deterioration that requires early attention, the Surveyor may require that the ship be dry-docked in order that a detailed survey can be undertaken and the necessary repairs carried out.

(8) For a ship with IWS of additional special feature notation, the following requirements are to be complied with, in addition to the requirements specified in preceding (1) to (7).

(a) The plans and documents specified in (1) and (b) to (d) below are to be submitted to the Society for approval, and are to be kept on board.

(b)

(c)

(d)

Anodes are to be attached in such a manner as to be easily replaced when necessary.

To the shell plating below load waterline, provision is to be made for ready identification

of the position of bulkhead.

Ships contracted for construction or intended to have IWS notation newly, on or after 1 July 2011, are to be complied with the following requirements additionally.

(i) A suitable means of ascertaining the position and identity of each blade of the pro- pellers are to be provided.

(ii) Hinged gratings are to be installed on all sea chests and constructed so as to facilitate

opening and closing by the diver.

(iii) Markings indicating the position of longitudinal and transverse bulkheads and the names of interior spaces, sea suction and overboard discharge openings on the shell plating be- low the load water line are to be provided so that the diver is able to orient his/her

position relative to the ship. Such markings may be consist of a weld bead or center punch, and a contrasting color coating. Other suitable arrangements or means may be considered as equivalent where deemed appropriate by the Society. See Guidance

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605. Extended Dry-docking Interval System

1. General

(1) The "Extended Dry-docking Interval System" is in any case subject to approval by the relevant flag state. The approval or acceptance of this rule by the relevant flag state doesn't means the approval for the application of Extended Dry-docking Interval System on the relevant ship, and the separate approval by the each relevant flag state is required for the application of Extended Dry- docking Interval System.

(2) The "Extended Dry-docking Interval System" applies to ships with Container Ship notation or Cargo Ship notation and General Dry Cargo Ships specified in Sec 14.

(3) In application to 601. 1, at the request of the Owners, where deemed appropriate by the Society considering survey history, damage history and coating conditions, etc. it is possible un- til the ship reaches 15 years of age to perform the first and second Docking Survey due from

the completion date of the Classification Survey during Construction or the completion date of the previous Docking Survey as an In-water Survey, and the third Docking Survey has to be performed in dry-dock or on a slipway within 7.5 years from the completion date of the

Classification Survey during Construction or the completion date of the previous Docking Survey. See Guidance

(4) The Owner can apply to join the which the ship reaches 10 years

"Extended Dry-docking Interval System" before the date on

of age. When the Owner applied to join the "Extended

Dry-docking Interval System" after the

No.1 Special Survey and the Docking Survey assigned

between 10 years to 15 years of

age

has carried out in dry-dock or on a slipway, the next

Docking Surveys can be carried out as Docking Survey and In-water Survey alternately start with In-water Survey.

(5) In the case of a change in Owner or flag, the application of the "Extended Dry-docking Interval

System" is to be reconsidered and a Docking Survey may be assigned or required immediately.

(6) The Society reserves the right to suspend the "Extended Dry-docking Interval System" at any time if it is determined that a dry-docking is necessary. See Guidance

(7) The EDD notation shall be assigned as an additional special feature notation to ships carrying out the "Extended Dry-docking Interval System".

2. Necessary requirements

The necessary requirements for implementation of the "Extended Dry-docking Interval System" are as followings.

(1) To be applied the Owner's Hull Inspection and Maintenance Program according to Annex 1-13

of the Guidance

(2) Ships contracted for construction on or after 1 July 2011 and classed through the Classification

Survey during Construction are to have IWS notation according to 604. 3 (8), and the other ships can be carried out the In-water Survey according to 604. 2 and 3.

(3) To have STCM(stern tube condition monitoring) notation according STCM notation are to be fitted with a shaft bearing and sealing

with implementation of regular monitoring procedures

(4) For ships contracted for construction on or after 1 July 2011, the

to 704. Ships not assigned

system of approved design

dry film thickness(DFT) of

the coating system for shell plating below the load water line excluding antifouling for the shell plating is to be more than 300 and for the other ships it is to be more than 250 . In

addition, the anodes are to be fitted and/or the impressed current cathodic protection system is to be installed and maintained.

(5) In lieu of (4) above, the Society may accept the other coating system provided that the coating manufacturer proves with relevant documents that the applied coating system is designed to last for the 7.5 years.

(6) Ballast tanks shall have a corrosion prevention system and to be maintained in GOOD coating condition.

(7) The hull below load waterline is to be free of any recommendation.

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3. Approval and survey

(1) Documents and approval For implementation of shall be presented to "Extended Dry-docking

the "Extended Dry-docking Interval System" the following documents the Society. The Society will issue an approval document for the Interval System" after review the presented documents. This approval

document is to be placed on-board.

(A) Application for “Extended Dry-docking Interval System"

(B) Description of the system for the "Extended Dry-docking Interval System" with flow charts of the system organization within the company

"Extended Dry-docking Interval System" specified in Par 2 above including the followings

(a) Manual for the Hull Inspection and Maintenance Program according to Annex 1-13 of the Guidance

(b)

(c)

(d)

Inspection procedures for In-water Survey Procedure for stern tube condition monitoring

Coating system for shell plating below the load water line

(2)

(D) Other documents as deemed necessary by the Society Implementation survey

(A) Additional to the approval according to (1) above, the implementation survey is to be car-

ried out within one year from the date of the approval of the "Extended Dry-docking Interval System" to verify that the "Extended Dry-docking Interval System"is implemented in accordance with the approval document.

(B) During the implementation survey, the attending Surveyor is to check the following items.

(a)

(b)

(c)

(d)

An approval document for the "Extended Dry-docking Interval System"

Documents specified in Par 3 (1) (B) to (D)

Whether the Master is familiar with the "Extended Dry-docking Interval System"

A random check for compliance of the necessary requirements specified in Par 2 above including the followings.

- Check whether the Owner's Hull Inspection and Maintenance Program specified in

Annex 1-13 of the Guidance is operated satisfactorily.

- Check the stern tube condition monitoring

- Check the impressed current cathodic protection system, if fitted

(3) Annual audit

(A) An annual audit is to be carried out to check the operation of the "Extended Dry-docking System" at Annual Survey

(B) At the annual audit the attending Surveyor is to check the following items.

(a)

(b)

(c)

(d)

An approval document for the "Extended Dry-docking Interval System"

Documents specified in Par 3 (1) (B) to (D)

Whether the Master is familiar with the "Extended Dry-docking Interval System"

Check for compliance of the necessary requirements specified in Par 2 above including

the followings.

- Check whether the Owner's Hull Inspection and Maintenance Program specified in

Annex 1-13 of the Guidance is operated satisfactorily and confirmation of random compartments

- Check

the stern tube condition monitoring

the impressed current cathodic protection system, if fitted

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Section 7 Surveys of Propeller Shaft and Stern Tube Shaft, Etc.

701. Due range See Guidance

1. Propeller shafts Kind 1(including stern tube shafts, etc.) are to be surveyed with an interval of 5 years from the completion date of the previous survey.

2. Propeller shafts Kind 2(including stern tube shafts, etc.) are to be surveyed with an interval not ex- ceeding 30 months from the completion date of the previous survey.

3. The surveys for water jet propulsion systems and azimuth or rotatable thruster are to be carried out in accordance with the Guidance relating to the Rules.

4. Upon the request of the Owner, the survey of propeller shaft(including stern tube shaft, etc.) may be postponed for a period not exceeding 6 months from the due date.

702. Ordinary survey items

1. After drawn out the propeller shaft from the stern tube bearings, parts of the propeller shaft, sleeves, fillets of coupling flange connected to the intermediate shaft and the coupling bolts are to be examined.

2. The stern tube bearings are to be examined. And bearing clearance and wear down are to be meas- ured for oil-lubricated type stern tube bearing and bearing clearance is to be measured for water-lu- bricated type stern tube bearing.

3. Major parts of the stern tube sealing devices are to be opened and examined.

4. After the propeller is removed, the following examinations for the propeller shaft, in way of the propeller fitting area, is to be carried out:

(1) For shafts with keyed propeller, examination is to be carried out by an efficient crack detection method for the after end of the cylindrical part of the shaft(or from the after end of the liner, if any), and for about one-third of the length of the taper from the big end. See Guidance

(2) For shafts with keyless propeller, examination

is to be carried out by an efficient crack de-

tection method for the forward part of the aft shaft taper. And when the propeller is force-fit-

ted, the pull-up length is to be in accordance

Guidance

(3) For shafts having coupling flanges at the after

with the Guidance relating to the Rules. See

end, the flange fillet and coupling bolts are to

be examined by an efficient crack detection method. See Guidance

5. Propeller and propeller boss bore in way of the propeller shaft taper is to be examined. Pitch con- trol gear and working parts for a controllable pitch propeller are to be examined and propeller blade fixing bolts are to be examined by an efficient crack detection method. See Guidance

6. Where the water-lubricated stern tube bearings are adopted, the sea water piping for lubrication is to be examined.

7. Where the oil-lubricated stern tube bearings are adopted, low oil level alarms of lubricating oil tanks, oil temperature measuring devices and oil circulating pumps are to be confirmed in good op- erating condition, and lubricating oil records are to be examined.

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703. Extension of Propeller Shaft Survey

1. Upon the request of the owner, where the propeller shaft is Kind 1 type fitted with oil-lubricated stern tube bearings and oil sealing gland and provided that new oil seals are able to be fitted with- out removal of the propeller(except in case of keyed propeller), instead of the survey specified in 702., after survey of the following items, the survey interval may be prolonged for not more than

5 years from the due date but not to be applied twice consecutively. However, where the results of the following surveys are not satisfactory, all the surveys required in 702. with the drawn shaft

are to be carried out.

(1) The shaft is to be drawn partially to expose the aft bearing contact area of the shaft for the examination. However, it may be exempted where stern tube bearing temperature and oil con- sumption are recorded and considered to be within permissible limits, and data of lubricating oil analysis in accordance with the Guidance relating to the Rules are satisfactory. See Guidanc

(2) The forward bearing is to be examined as far as possible and all accessible parts of the shaft including the propeller connection to the shaft is to be examined. See Guidance

(3) Visual examination to confirm the good condition of oil sealing gland is to be carried out. And clearance or wear down of the aft bearing(or the after end of the strut bearing, if any) is to be

measured.

(4) For shafts with keyed propeller, examination is to be carried out by an efficient crack detection method for about one-third of the length of the taper from the big end after removal of the propeller. See Guidance

2. Upon the request of the owner, where the propeller shaft is Kind 1 type fitted with oil-lubricated stern tube bearings and oil sealing gland and provided that new oil seals are able to be fitted with- out removal of the propeller(except in case of keyed propeller), the following survey without draw- ing the propeller shaft may be carried out and after finding the good results, the survey interval may be prolonged for not more than 30 months from the due date but to be applied only once.

(1) Oil sealing devices of stern tube

(2) Measurement of clearance or wear down of the aft bearing(or the after end of the strut bearing, if any)

(3) For shafts with keyed propeller, examination is to be carried out by an efficient crack detection method for the forward part of the taper after removal of the propeller. See Guidance

704. Survey for ships in which stern tube condition monitoring is performed

1. Provided that oil-lubricated stern tube bearings comply with the requirements in following (1) to (6) and the Surveyor confirms at the periodical survey that parameters in the condition monitoring re- cords are within permissible limits, the examination of this survey may be carried out without with-

drawal of the results of the

shaft and omitted the requirements given in 702. 1 to 3 above. However, where the surveys in accordance with following (1) to (6) are not satisfactory, all the surveys

required in 702. with the drawn shaft are to be carried out.

(1) Regularly at intervals lubricating oil analysis specified separatedly is to be carried out in accord- ance with the Guidance relating to the Rules. See Guidance

(2) Lubricating oil consumption is to be recorded.

(3) At the aft stern tube bearing, two temperature sensors are to be provided, or if only one tem-

perature senor is provided, a spare temperature sensor which can be replaced easily is to be provided when the using sensor is out of order.

(4) Aft stern tube bearing temperatures are to be recorded.

(5) Measurement of bearing weardown is to be provided.

(6) Oil seals devices are to be such that can be renewed without removal of propeller.

2. For ships in accordance with above assigned.

Par 1, an additional installation notation of STCM is to be

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Section 8 Boiler Survey

801. Due range

1. The following boilers(including thermal oil heaters) are to be internally examined minimum twice during each 5 year Special Survey period. In all cases the interval between any two such examina- tions is not to exceed 36 months.

(1) Water tube boilers used for propulsion, including reheat boilers

(2) All other boilers of essential service

(3) Boilers of non-essential service having working pressure exceeding 3.5 bar and a heating surface

exceeding 4.5 m

2. For main boilers with smoke tube type or single main boiler with water tube type which are over

7.5 years of age, the surveys are to be carried out within 3 months before or after every year.

802. Survey items

1. The surveys of boilers are to be carried out as follows, and where deemed necessary by the Surveyor, the parts of lagging are to be removed and inspected. Where deemed necessary by the Surveyor, further surveys may be required. See Guidance

(1) At each survey, the boilers, superheaters and economizers are to be examined internally on wa- ter- steam side and fire side. Boiler mountings and safety valves are to be examined at each sur- vey and opened out as considered necessary by the Surveyor. See Guidance

(2) The adjustment of the safety valves is to be verified during each boiler internal survey. Boiler safety valve and relieving gear are to be examined and tested to verify satisfactory operation. However, for exhaust gas heated economizers, if steam cannot be raised at port, the safety valves may be set by the Chief Engineer at sea, and the results recorded in the log book for review by the Surveyor.

(3)

Review of the following records since the last Boiler Survey is to be carried out as part of the survey:

(a) Operation

(b) Maintenance

(d) Feedwater chemistry

2. An extension of the internal examination of the boiler(including thermal oil heaters) up to 3 months beyond the due date can be granted in exceptional circumstance defined in 401. 1. The extension may be granted by the Surveyor after the following is satisfactorily carried out:

(1) External examination of the boiler

(2) Boiler safety valve relieving gear is to be examined and operationally tested

(3) Boiler protective devices operationally tested

(4) Review of the following records since the last boiler Survey:

(a) Operation

(b) Maintenance

(d) Feedwater chemistry

3. In addition to the other requirements Par 1 above(internal examination) in exhaust gas heated econ- omizers of the shell type, all accessible welded joints are to be subjected to a visual examination for cracking. Non-destructive Testing may be required as deemed necessary by the Surveyor.

4. The surveys of thermal oil heaters are to be carried out as follows. Where deemed necessary by the Surveyor, further surveys may be required. See Guidance

(1) The tightness of the installation to flange connections and valves and packings is to be examined.

(2) The coils in the oil fired furnace are to be externally examined.

(3) Plant instrumentation including regulation and safety systems is to be examined and tested.

(4) Liquid relief valves are to be examined, and the pressure is to adjusted.

(5) For thermal oil heater tubes heated by exhaust gas, hydraulic testing to the design pressure is to

be carried out.

(6) Fuel oil equipment are to be examined.

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Section 9 Continuous Survey of Machinery

901. Due range

1. At the request of the Owner, and upon approval of the proposed arrangements by the Society, con- tinuous survey of machinery(hereafter referred to as "CMS") may be undertaken for all the items of machinery installations to be surveyed at the Special Survey in accordance with the Guidance relat- ing to the Rules. When such a system is adopted, all the requirements of the Special Survey are to be surveyed in rotation within 5 year period and to be completed.

2. CMS is to be carried out at the time of or during the periodical survey. However, at the request of the owner, CMS may be carried out as an Occasional Survey.

902. Survey items See Guidance

1. The procedure of CMS is to be complied with the Guidance relating to the Rules.

2. Where any machinery installations were overhauled and inspected by the Chief Engineer the over- hauled inspections may substitute for the CMS in accordance with the Guidance relating to the Rules. However, for each part of the main internal combustion engine and internal combustion en- gine to drive main generator among machinery permissible for the Chief Engineer's inspection, open- up survey by the Surveyor for at least one of two CMS cycles is to be carried.

3. If any defects of the CMS is found, further examinations of overhauling are to be carried out where deemed necessary by the Surveyor.

4. For passenger ships, the CMS is to be complied with the Guidance relating to the Rules.

5. The CMS is to be commenced after the classification of Ships to the Society in accordance with the Guidance relating to the Rules.

6. The withdrawal of CMS is to be complied with the requirements of the Guidance relating to the Rules.

903. Planned Maintenance System

1. At the request of the Owner, where deemed appropriate by the Society in accordance with the Guidance relating to the Rules, the Planned Maintenance System(hereinafter referred to as "PMS") may be applied by the maintenance procedures scheme as an alternative to the Continuous Machinery Survey(CMS). But passenger ships shall not apply to PMS and the Society may consider a special application for PMS on ships exceeding 15 years old based on their condition. However, where deemed necessary by the Surveyor, the overhaul inspection of the equipment may be required. See Guidance

2. PMS certificate is to be issued and the inspection based on the PMS may be carried out by the chief engineer certified by this Society. The implementation survey and annual audit are to be in accordance with the requirements of the Guidance relating to the Rules. See Guidance

3. In case the ship under PMS, the condition monitoring equipment(hereinafter referred to as "CM"). approved by the Society shall be in accordance with the Guidance relating to the Rules. See

Guidance

4. The damage and repairs for PMS are to be in accordance with the requirements of the Guidance relating to the Rules. See Guidance

5. The withdrawal of PMS is to be in accordance with the requirements of the Guidance relating to the Rules. See Guidance

6. Where there is change of ship management or shipowner, the approved PMS may be reconsidered.

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Section 10 Occasional Survey

1001. Occasional Survey See Guidance

All classed ships are to be subjected to Occasional Surveys when they fall under either of the fol- lowing conditions at the periods other than those of Special, Intermediate, or Annual Survey:

(1) When main parts of hull or machinery, or important fittings or equipment which have been sur-

veyed by the Society, have been damaged, or are about to be repaired or altered.

(2) When whole or a part of machinery are about to be shifted.

(3) When safety valves are opened up or when settings of safety valves is altered.

(4) When propeller shafts are drawn out and the survey of the shaft is requested by the Owner.

(5) When load lines are required to be changed or to be newly marked.

(6) Other cases where surveys are designated or whenever survey is deemed necessary by the Surveyor.

(7) When the due dates of surveys are to be postponed.

1002. Items of survey

In the Occasional Surveys, the necessary parts are to be examined in each case of 1001.

Section 11 Alteration Survey

1101. Alteration survey

All classed ships are to be subjected to survey when hull, machinery, or equipment are about to be altered.

1102. Approval of plans

When it is intended to obtain a surveys for alterations, plans and documents equivalent to the sur- vey during construction are to be submitted to the Society for the approval before the work is commenced.

1103. Items of survey

1. In the surveys for alterations, the altered parts are to be examined in accordance with the survey items equivalent to the survey during construction.

2. Where a complete replacement or addition of a major portion of the ship(e.g. forward section, after section, main cargo section) is involved at the alteration, the Date of Build(i.e. the year, month and date at which the alteration survey is completed) associated with each altered major portion of the ship shall be indicated in the Certificate of Classification in addition to the Date of Build assigned to the ship, and survey requirements for each altered major portion of the ship shall be based on this Date of Build. Such survey due dates may be aligned with ships survey due date at the dis- cretion of the Society. See Guidance

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Section 12 Survey of Ships Carrying Dangerous Goods and Other Special Cargoes

1201. Surveys

For surveys of ships carrying dangerous goods and other special cargoes, the Society may request to apply, in addition to the Rules, Korean Ship Safety Act, related international conventions and other regulations as deemed appropriate. See Guidance

Section 13 Additional Installations Survey

1301. Surveys

The surveys for additional installations(cargo refrigerating automatic and remote control systems, dynamic positioning

installations, cargo handling appliances, systems, navigation bridge systems, hull

monitoring systems, diving systems and high voltage shore

ried out in accordance with the requirements specified in Pt

connection

9, etc.

systems, etc.) are to be

car-

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Section 14 Hull Surveys for General Dry Cargo Ships

1401. General

1. Application

(1) In addition to the other requirements specified in Ch 2, the requirements apply to all self-pro- pelled general dry cargo ships of 500 GT and above carrying solid cargoes other than:

- bulk carriers and double skin bulk carriers subject to the enhanced survey programme(ESP)

- dedicated container carriers

- ro-ro cargo ships

- refrigerated cargo ships

- dedicated wood chip carriers

- dedicated cement carriers

- livestock carriers

- deck cargo ship(A ship that is designed to carry cargo exclusively above deck without any access for cargo below deck)

- general dry cargo ships of double side-skin construction, with double side-skin extending for the entire length of the cargo area, and for the entire height of the cargo hold to the upper

deck

However, the requirements specified in 1402. 7 and 1404. 7 also apply to those cargo ships,

which, although belonging to the ship types listed above that are excluded from the application of this requirements, are fitted with a single cargo hold.

(2) The requirements apply to surveys of hull structure and piping systems in way of the following spaces;

(A) cargo holds, cofferdams, pipe tunnels, void spaces and fuel oil tanks within the cargo area

(B) all ballast tanks

(3) The requirements contain the minimum extent of examination, thickness measurements and tank

testing. The survey is to be extended when substantial corrosion and/or structural found and include additional Close-up Survey when necessary. See Guidance

2. Definitions

A transverse section includes all longitudinal members such as plating, longitudinals at the deck, sides, bottom, inner bottom and hopper side plating, longitudinal bulkheads

defects are

and girders and bottom

plating in top wing tanks. For transversely framed vessels, a transverse section includes adjacent frames and their end connections in way of transverse sections.

3. Procedures for thickness measurements

(1) The required thickness measurements, if not carried out by the Society itself, are to be wit- nessed by a Surveyor. The Surveyor is to be on board to the extent necessary to control the process. In this case, the control of thickness measurement process is to be in accordance with the separate requirements specified by the Society.

(2) The thickness measurement company is to be part of the survey planning meeting to be held prior to commencing the survey.

(3) Thickness measurements of structures in areas where Close-up Surveys are required shall be car- ried out simultaneously with Close-up Surveys.

(4) The thickness measurements are to be carried out by a company certified by the Society.

(5) A thickness measurement report is to be prepared. The report is to give the location of meas- urements, the thickness measured as well as corresponding original thickness. Furthermore, the

report is to give the date when the measurements were carried out, type of measurement equip- ment, names of personnel and their qualifications and has to be signed by the operator.

(6) The Surveyor is to review the final thickness measurement report and countersign the cover

page.

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1402. Annual Survey

1. General

(1) The due range of Annual Survey is to be in accordance with the requirements of 201.

(2) The survey is to consist of an examination for the purpose of ensuring, as far as practicable, that the hull, hatch covers, coamings and piping are maintained in a satisfactory condition.

2. Examination of the hull

(1) Examination of the hull plating and its closing appliances as far as can be seen.

(2) Examination of watertight penetrations as far as practicable.

3. Examination of weather deck, hatch covers and coamings

(1) Confirmation is to be obtained that no unapproved changes have been made to the hatch covers, hatch coamings and their securing and sealing devices since the last survey.

(2) Where mechanically operated steel covers are fitted, checking the satisfactory condition of:

(a) hatch covers; including Close-up Survey of hatch cover plating

(b) tightness devices of longitudinal, transverse and intermediate cross joints(gaskets, gasket lips, compression bars, drainage channels)

(d) guides, guide rails, track wheels and stoppers, etc.

(e) wires, chains, gypsies, tensioning devices

(f) hydraulic system essential to closing and securing

(g) safety locks and retaining devices

(3) Where portable covers, wooden or steel pontoons are fitted, checking the satisfactory condition

where applicable of:

(a) wooden covers and portable beams, carriers or sockets for the portable beam, and their se- curing devices

(b) steel pontoons

(d) cleats, battens and wedges

(e) hatch securing bars and their securing devices

(f) loading pads/bars and the side plate edge

(g) guide plates and chocks

(h) compression bars, drainage channels and drain pipes(if any)

(4) Checking the satisfactory condition of hatch coaming plating and their stiffeners including Close-up Survey.

(5) Random checking of the satisfactory operating of mechanically operated hatch covers is to be made including:

(a) stowage and securing in open condition

(b) proper fit and efficiency of sealing in closed condition

Note : For survey of air pipes, flame screens on the open ends of air pipes and ventilations refer

to 202. 1 (1) (f) to (h) and (6).

4. Suspect areas

Suspect areas identified at previous surveys are to be examined. Thickness measurements are to be taken of the areas of substantial corrosion and the extent of thickness measurements is to be in- creased to determine the extent of areas of substantial corrosion. Table 1.2.5 may be used as guidance for these additional thickness measurements. These extended thickness measurements are to be carried out before the Annual Survey is credited as completed.

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5. Examination of cargo holds

The examination of cargo holds in Annual Survey is to be in accordance with the follows.

10 years < age 15 years3)

15 years < age1), 2), 3)

Overall Survey

· One forward cargo hold (and their asso- ciated 'tween deck spaces, where fitted)

· One after cargo hold (and their asso- ciated 'tween deck spaces, where fitted)

All cargo hold (and their associated 'tween deck spaces, where fitted)

Close-up Survey

1. Cargo holds:

· one forward lower cargo hold

· one other lower cargo hold

2. Extent:

· Close-up examination of sufficient extent, mini- mum 25 % of frames, to establish the condition of the lower region of the shell frames includ- ing approx. lower one third length of side frame at side shell and side frame end attach- ment and the adjacent shell plating

Others

All piping and penetrations in cargo holds, includ- ing overboard piping, are to be examined

(NOTES)

1) Where the protective coating in cargo holds, as applicable, is found to be in GOOD condition, the extent of Close-up Surveys may be specially considered.

2) Where this level of survey reveals the need for remedial measures, the survey is to be extended to include a Close-up Survey of all of the shell frames and adjacent shell plating of those cargo holds and associated 'tw- een deck spaces(as applicable) as well as a Close-up Survey of sufficient extent of all remaining cargo holds and 'tween deck spaces(as applicable).

3) When considered necessary by the Surveyor, or where extensive corrosion exists, thickness measurement is to be carried out. If the results of these thickness measurements indicate that substantial corrosion is found, the extent of thickness measurements is to be increased to determine the extent of areas of substantial corrosion. Table

1.2.5 may be used as guidance for these additional thickness measurements. These extended thickness measure- ments is to be carried out before the Annual Survey is credited as completed. See Guidance

6. Examination of ballast tanks

Examination of ballast tanks when required as a consequence of the results of the Special Survey and Intermediate Survey is to be carried out. When considered necessary by the Surveyor, or where extensive corrosion exists, thickness measurement is to be carried out. If the results of these thick- ness measurements indicate that substantial corrosion is found, then the extent of thickness measure- ments is to be increased to determine the extent of areas of substantial corrosion. Table 1.2.5 may be used as guidance for these additional thickness measurements. These extended thickness measure- ments are to be carried out before the Annual Survey is credited as completed. See Guidance

7. Additional Annual Survey requirements for single hold cargo ships (See 1401. 1 (1)) after determining compliance with SOLAS II-1/23-3 and II-1/25

For ships complying with the requirements of SOLAS II-1/23-3 detectors, the Annual Survey is to include an examination and a gress detection system and of their alarms.

and II-1/25 for hold water level test, at random, of the water in-

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1403. Intermediate Survey

1. General

(1) The due range of Intermediate Survey is to be in accordance with the requirements of 301.

(2) At each Intermediate Survey, in addition to the requirements of the Annual Survey, the follow- ing items are to be surveyed. Those items which are additional to the requirements of the Annual Survey may be surveyed either at or between the 2nd and 3rd Annual Survey.

(3) A survey planning meeting is to be held prior to the commencement of the survey.

(4) Ships over 15 years of age, the following is to apply:

(a) The requirements of the Intermediate Survey are to be to the same extent as the previous Special Survey as required in 1404., except for item 2. c) in column for Special Survey No. 4 and Subsequent of Table 1.2.9. (Caution : In this case, the requirements specified in

403. are not need to be applied) However, tank testing specified in 1404. 6, survey of au-

tomatic air pipe heads(See Notes in 1404. 1 (6) and 1404. 4 (4)) and internal examination of fuel oil, lube oil and fresh water tanks(See 1404. 4 (1)) are not required unless deemed necessary by the attending Surveyor. See Guidance

(b)

(c)

In application of (a) above, the Intermediate Survey may be commenced at the second Annual Survey and be progressed during the succeeding year with a view to completion at the third Annual Survey in lieu of the application 401. 4 and 5.

In lieu of the requirements of 1404. 1 (7), an In-water Survey, according to 604. 1, may be considered as equivalent.

2. Examination of ballast tanks

The examination of ballast tanks in Intermediate Survey is to be in accordance with the follows.

5 years < age 10 years1), 2), 3)

10 years < age 15 years1), 3)

15 years < age

· Overall Survey of representative ballast tanks

· Survey of suspect areas found at pre- vious surveys in accordance with the

requirements specified in 1402. 4.

· Overall Survey of all ballast tanks

· Survey of suspect areas found at pre- vious surveys in accordance with the requirements specified in 1402. 4.

1403. 1 (4) to be applied

(NOTES)

1) If such Overall Survey reveals no visible structural defects, the examination may be limited to a verification that the corrosion prevention system remains efficient.

2) Where POOR coating condition, soft or semi-hard coating, corrosion or other defects are found in ballast tanks or where a hard protective coating was not applied from the time of construction, the examination is to be extended to other ballast tanks of the same type.

3) In ballast tanks other than double bottom ballast tanks, where a hard protective coating is found in POOR condition, and it is not renewed, where soft or semi-hard coating has been applied, or where a hard pro- tective coating was not applied from the time of construction, the tanks in question are to be examined and thickness measurements carried out as considered necessary at annual intervals. When such breakdown of hard protective coating is found in double bottom ballast tanks, where a soft or semi-hard coating has been applied, or where a hard protective coating has not been applied, the tanks in question may be examined at annual intervals. When considered necessary by the attending Surveyor, or where extensive corrosion exists, thickness measurements are to be carried out. See Guidance

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3. Examination of cargo holds

The examination of cargo holds in Intermediate Survey is to be in accordance with the follows.

5 years < age 10 years

10 years < age 15 years1)

15 years < age

· Overall Survey of one forward and one after cargo hold(and their asso- ciated 'tween deck spaces, where fit- ted)

· Survey of suspect areas found at pre- vious surveys in accordance with the

requirements specified in 1402. 4.

· Overall Survey of all cargo holds(and their associated 'tween deck spaces, where fitted)

· Survey of suspect areas found at pre- vious surveys in accordance with the requirements specified in 1402. 4.

1403. 1 (4) to be applied

(NOTES)

1) When considered necessary by the Surveyor, or where extensive corrosion exists, thickness measurements are to be carried out. If the results of these thickness measurements indicate that substantial corrosion is found, then the extent of thickness measurements is to be increased to determine the extent of areas of substantial corrosion. Table 1.2.5 may be used as guidance for these additional thickness measurements. These extended thickness measurements are to be carried out before the survey is credited as completed.

See Guidance

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1404. Special Survey

1. General

(1) The due range of Special Survey is to be in accordance with the requirements of 401.

(2) A survey planing meeting is to be held prior to the commencement of the survey.

(3) The Special Survey is to include, in addition to the requirements of the Annual Surveys, exami- nation, tests and checks of sufficient extent to ensure that the hull and related piping, as re-

quired in (5), are in a satisfactory condition and is fit for the intended purpose for the new pe-

riod of class of 5 years to be assigned, subject to proper maintenance and operation and to periodical surveys being carried out at the due dates.

(4) All cargo holds, ballast tanks, including double bottom tanks, pipe tunnels, cofferdams and void

spaces bounding cargo holds, decks and outer hull are to be examined, and this examination is to be supplemented by thickness measurement and testing as required in Par 5 and Par 6, to ensure that the structural integrity remains effective. The aim of the examination is to discover substantial corrosion, significant deformation, fractures, damages or other structural deterioration, that may be present.

(5) All piping systems within the spaces specified in (4) above are to be examined and operation-

ally tested to working pressure to attending Surveyor's satisfaction to ensure that tightness and condition remain satisfactory.

(6) The survey extent of ballast tanks converted to void spaces is to be specially considered in re- lation to the requirements for ballast tanks.

Note : For survey of automatic air pipe heads refer to 403. 1 (17).

(7) A survey in dry dock is to be a part of the Special Survey. The Overall and Close-up Surveys and thickness measurements, as applicable, of the lower portions of the cargo holds

and ballast

tanks are to be carried out in accordance with the applicable requirements for Special Surveys,

if not already performed.

Note : Lower portions of the cargo holds and ballast tanks are considered to be the parts below light ballast water line.

However, ships subject to the "Extended Dry-docking Interval System" specified in 605., this

2. survey in dry dock can be carried out in accordance with 605.

Tank protection

(1) Where provided, the condition of the corrosion prevention system of ballast tanks is to be examined. For ballast tanks, excluding double bottom ballast tanks, where a hard protective coat- ing is found in POOR condition and it is not renewed, where a soft or semi-hard coating has been applied, or where a hard protective coating was not applied from the time of construction, the tanks in question are to be examined at annual intervals. Thickness measurements are to be carried out as deemed necessary be the Surveyor. See Guidance

(2) When such breakdown of hard protective coating is found in double bottom ballast tanks and it is not renewed, where a soft or semi-hard coating has been applied, or where a hard protective coating was not applied from the time of construction, the tanks in question may be examined at annual intervals. When considered necessary by the Surveyor, or where extensive corrosion exists, thickness measurements are to be carried out. See Guidance

(3) Where the hard protective coating in spaces is found to be in a GOOD condition, the extent of

3. Close-up Surveys and thickness measurements may be specially considered.

Hatch covers and coamings

In addition to the requirements in 1402. 3 of the Annual Survey, the following items are to be surveyed.

(1) Checking of the satisfactory operation of all mechanically operated hatch covers is to be made, including:

(a) stowage and securing in open condition

(b) proper fit and efficiency of sealing in closed condition

(2) Checking the effectiveness of sealing alent is to be carried out.

(3) Thickness measurement of the hatch

out as given in Table 1.2.9.

arrangements of all hatch covers by hose testing or equiv- cover and coaming plating and stiffeners is to be carried

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4. Extent of Overall and Close-up Survey

(1) An Overall Survey of all tanks and spaces, excluding fuel oil, lube-oil and fresh water tanks, is to be carried out at each Special Survey.

Note : For fuel oil, lube oil and fresh water tanks, reference is to be made to Table 1.2.3.

(2) The minimum requirements for Close-up Surveys at Special Surveys are given in Table 1.2.8.

(3) The Surveyor may

maintenance of the

extend spaces

the Close-up Survey as deemed necessary taking into account the under survey, the condition of the corrosion prevention system and

where spaces have

structural arrangements or details which have suffered defects in similar

spaces or on similar ships according to available information.

(4) For areas in spaces where hard protective coatings are found in a GOOD condition, the extent of Close-up Surveys according to Table 1.2.8 may be specially considered.

Note : For examination of automatic air pipe heads, reference is to be made to Table 1.2.7.

5. Extent of thickness measurement

(1) The minimum requirements for thickness measurements at Special Survey are given in Table 1.2.9.

(2) Representative thickness measurement to determine both general and local levels of corrosion in

the shell frames and their end attachments in all cargo holds and ballast tanks is to be carried out. Thickness measurement is also to be carried out to determine the corrosion levels on the transverse bulkhead plating. The thickness measurements may be dispensed with provided the

Surveyor is satisfied by the Close-up Survey, that there is no structural diminution, and the hard protective coating where applied remains efficient. See Guidance

(3) The Surveyor may extend the thickness measurements as deemed measurements indicate substantial corrosion, the extent of thickness

necessary. When thickness measurements is to be in-

creased to determine the extent of areas of substantial corrosion. Table 1.2.5 may be used as

guidance for these additional thickness measurements. See Guidance

(4) For areas in tanks where hard protective coatings are found to be in a GOOD condition, the extent of thickness measurement according to Table 1.2.9 may be specially considered.

(5) Transverse sections are to be chosen where the largest reductions are suspected to occur or are

revealed from deck plating measurements.

6. Extent of tank testing

(1) All boundaries of ballast tanks and deep tanks used for water ballast within the cargo length area are to be pressure tested. For fuel oil tanks within the cargo length area, representative tanks are to be pressure tested.

(2) The Surveyor may extend the tank testing as deemed necessary. See Guidance

(3) Tank testing of fuel oil tanks is to be carried out with a head of liquid to the highest point

that liquid will rise under service conditions. Tank testing of fuel oil tanks may be spacially considered based on a satisfactory external examination of the tank boundaries, and a con-

firmation from the Master stating that the pressure testing has been carried out according to the requirements with satisfactory results.

7. Additional Special Survey requirements for single hold cargo ships (See 1401. 1 (1)) after determining compliance with SOLAS II-1/23-3 and II-1/25

For ships complying with the requirements of SOLAS II-1/23-3 and II-1/25 detectors, the Special Survey is to include an examination and a test of the tection system and of their alarms.

for hold water level all water ingress de-

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Table 1.2.8 Minimum requirements for Close-up Survey at Special Survey of General Dry Cargo Ships

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3

Special Survey No. 4 and Subsequent

1. Selected shell frames in one forward and one aft cargo hold and associated 'tween deck spaces (*1)

2. One selected cargo hold transverse bulkhead (*2)

3. All cargo hold hatch covers and coamings (plating and stiffeners) (*4)

1. Selected shell frames in all cargo holds and 'tween deck spaces (*1)

2. One transverse bulkhead in each cargo hold (*2)

3. Forward and aft transverse bulkhead in one side bal- last tank, including stiff- ening system (*2)

4. One transverse web with associated plating and framing in two representa- tive ballast tanks of each type (i.e. topside, hopper side, side tank or double bottom tank) (*3)

5. All cargo hold hatch covers and coamings (plating and stiffeners) (*4)

6. Selected areas of all deck plating and underdeck structure inside line of hatch openings between cargo hold hatches (*5)

7. Selected areas of inner bottom plating (*6)

1. All shell frames in the forward lower cargo hold and 25 % frames in each of the remaining cargo holds and 'tween deck spaces including upper and lower end attach- ments and adjacent shell plating (*1)

2. All cargo hold transverse bulkheads (*2)

3. All transverse bulkheads in ballast tanks, including stiffening system (*2)

4. All transverse webs with associated plating and framing in each ballast tank (*3)

5. All cargo hold hatch covers and coamings (plating and stiffeners) (*4)

6. All deck plating and un- derdeck structure inside line of hatch openings between cargo hold hatches (*5)

7. All areas of inner bottom plating (*6)

1.All shell frames in all cargo holds and 'tween deck spaces including up- per and lower end at- tachments and adjacent shell plating (*1)

2. All cargo hold transverse bulkheads (*2)

3. All transverse bulkheads in ballast tanks, including stiffening system (*2)

4. All transverse webs with associated plating and framing in each ballast tank (*3)

5. All cargo hold hatch covers and coamings (plating and stiffeners) (*4)

6. All deck plating and un- derdeck structure inside line of hatch openings between cargo hold hatches (*5)

7. All areas of inner bottom plating (*6)

(NOTES)

1) (*1) to (*6) means as follows and are illustrated in Annex 1-6 of the Guidance: See Guidance

(*1) Cargo hold transverse frames

(*2) Cargo hold transverse bulkhead plating, stiffeners and girders

(*3) Transverse web frame or watertight transverse bulkhead in ballast tanks (*4) Cargo hold hatch covers and coamings

(*5) Deck plating and underdeck structure inside line of hatch openings between cargo hold hatches (*6) Inner bottom plating

2) Close-up Survey of cargo hold transverse bulkheads is to be carried out at the following levels:

· Immediately above the inner bottom and immediately above the 'tween decks, as applicable

· Mid-height of the bulkheads for holds without 'tween decks

· Immediately below the main deck plating and 'tween deck plating

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Table 1.2.9 Minimum requirements

Cargo Ships

for thickness measurements at Special Survey of General Dry

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3

Special Survey No. 4 and Subsequent

1. Suspect areas

2. One transverse section of deck plating in way of a cargo length area within the amidships 0.5

3. Measurement for general assessment and recording of corrosion pattern of those structural members subject to Close-up Survey according to Table 1.2.8

1. Suspect areas

2. Two transverse sections within the amidships 0.5

in way of two different cargo spaces2)

3. Measurement for general assessment and recording of corrosion pattern of those structural members subject to Close-up Survey according to Table 1.2.8

4. Within the cargo length area, each deck plate out- side line of cargo hatch openings

5. All wind and water strakes within the cargo length area

6. Selected wind and water strakes outside the cargo length area

1. Suspect areas

2. Within the cargo length area:

1) A minimum of three transverse sections with- in the amidships 0.5 2)

2) Each deck plate outside line of cargo hatch openings

3) Each bottom plate, in- cluding lower turn of bilge

4) Duct keel or pipe tun- nel plating and internals

3. Measurement for general assessment and recording of corrosion pattern of those structural members subject to Close-up Survey according to Table 1.2.8

4. All wind and water strakes full length

(NOTES)

1) Thickness measurement locations are to be selected to provide the best representative sampling of areas like- ly to be most exposed to corrosion, considering cargo and ballast history and arrangement and condition of protective coatings.

2) For ships less than 100 meters in length, the number of transverse sections required at Special Survey No. 3 may be reduced to one and the number of transverse sections at Special Survey No. 4 and subsequent surveys may be reduced to two.

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Section 15 Hull Surveys for Liquefied Gas Carriers

1501. General

1. Application

(1) In addition to the other requirements specified in Ch 2, the requirements apply to all self-pro- pelled ships carrying liquefied gases in bulk.

(2) The requirements apply to surveys of hull structure and piping systems, except piping covered by 204. 3, 304. 3 and Sec 5-2, 3, in way of the following spaces;

(A) pump rooms, compressor

within the cargo area

(B) all ballast tanks

Refer to 204. 3, 304. 3 and

installations

(3) The requirements contain the

rooms, cofferdams, pipe tunnels, void spaces and fuel oil tanks

Sec 5-2, 3 for periodical surveys of cargo carriage and handling minimum extent of examination, thickness measurements and tank

testing. The survey is to be extended when substantial corrosion and/or structural defects are

found and include additional Close-up Survey when necessary. See Guidance

2. Definitions

(1) A transverse section includes all longitudinal members such as plating, longitudinals and gird- ers at the deck, sides, bottom, inner bottom and longitudinal bulkheads.

(2) Cargo area is that part of the ship which contains cargo tanks, cargo/ballast pump-rooms, com-

pressor rooms, cofferdams, ballast tanks and void spaces adjacent to cargo tanks and also deck areas throughout the entire length and breadth of the part of the ship over the above mentioned spaces.

3. Procedures for thickness measurements

(2) The thickness measurement company is to be part of the survey planning meeting to be held prior to commencing the survey.

(3) Thickness measurements of structures in areas where Close-up Surveys are required shall be car-

ried

(4) The

that

out simultaneously with Close-up Surveys.

thickness measurements are to be carried out by a company certified by the Society, except

in respect of measurements of ships less than 500 gross tonnage, the firm need not be so

approved.

(5) A thickness measurement report is to be prepared. The report is to give the location of meas-

urements, the thickness measured as well as corresponding original thickness. Furthermore, the report is to give the date when the measurements were carried out, type of measurement equip- ment, names of personnel and their qualifications and has to be signed by the operator.

(6) The Surveyor is to review the final thickness measurement report and countersign the cover page.

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1502. Annual Survey

1. General

(1) The due range of Annual Survey is to be in accordance with the requirements of 201.

(2) The survey is to consist of an examination for the purpose of ensuring, as far as practicable, that the hull and piping are maintained in a satisfactory condition.

2. Examination of the hull

(1) Examination of the hull plating and its closing appliances as far as can be seen.

(2) Examination of watertight penetrations as far as practicable.

3. Examination of weather deck

(1) Examination of flame screens on the open ends of air pipes to all bunker tanks.

(2) Examination of bunker and vent piping systems.

4. Examination of cargo pump rooms and compressor rooms and, as far as practicable, pipe tunnels if fitted

(1) Examination of all pump room and compressor room bulkheads for signs of leakage or fractures and, in particular, the sealing arrangements of all penetrations of pump room and compressor room bulkheads.

(2) Examination of the condition of all piping systems, except those covered by 204. 3, 304. 3

and Sec 5-2, 3.

Note : For survey of air pipes, flame screens on the open ends of air pipes and ventilations refer to 202. 1 (1) (f) to (h) and (6).

5. Suspect areas

6. Examination of ballast tanks

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1503. Intermediate Survey

1. General

(1) The due range of Intermediate Survey is to be in accordance with the requirements of 301.

(3) A survey planning meeting is to be held prior to the commencement of the survey.

2. Examination of ballast tanks

(1) The Overall Survey of ballast tanks in Intermediate Survey is to be in accordance with the follows.

5 years < age 10 years1), 2), 3)

10 years < age1), 3)

Overall Survey of representative ballast tanks

Overall Survey of all ballast tanks

(NOTES)

1) If such examinations reveals no visible structural defects, the examination may be limited to a verification that the corrosion prevention system remains efficient.

2) If there is no hard protective coating, soft or semi-hard coating or POOR coating condition, the examination is to be extended to other ballast tanks of the same type.

3) For ballast tanks, excluding double bottom ballast tanks, if there is no hard protective coating, soft or semi-hard coating, or POOR coating condition and it is not renewed, the tanks in question are to be in- ternally examined at annual intervals.

4) When such conditions as above 3) are found in double bottom ballast tanks, the tanks in question may be internally examined at annual intervals.

(2) The minimum requirements for Close-up Survey of ballast tanks in Intermediate Survey is to be in accordance with the follows.

10 years < age 15 years

15 years < age

Close-up Survey of:

1.all web frames and both transverse bulkheads in a representative ballast tank (*1) and (*2)

2.the upper part of one web frame in another repre- sentative ballast tank

3.one transverse bulkhead in another representative ballast tank (*2)

Close-up Survey of:

1. all web frames and both transverse bulkheads in two representative ballast tanks (*1) and (*2)

(NOTES)

1) (*1) and (*2) mean as follows;

(*1) : Complete transverse web frame including adjacent structural members

(*2) : Transverse bulkhead complete, including girder system and adjacent structural members, and adjacent longitudinal bulkhead structure

2) Ballast tanks include topside, double hull side, double bottom, hopper side, or any combined arrangement of the aforementioned, and peak tanks where fitted.

3) For areas in tanks where protective coatings are found to be in GOOD condition, the extent of Close-up Surveys may be specially considered by the Society.

4) For ships having independent tanks of type C, with a midship section similar to that of a general cargo ship, the extent of Close-up Surveys may be specially considered by the Society.

5) The Surveyor may extend the Close-up Survey as deemed necessary taking into account the maintenance of the tanks under survey, the condition of the corrosion prevention system and also in the following cases:

- in particular, in tanks having structural arrangements or details which have suffered defects in similar tanks, or on similar ships according to available information;

- in tanks having structures approved with reduced scantlings.

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1504. Special Survey

1. General

(1) The due range of Special Survey is to be in accordance with the requirements of 401.

(2) A survey planing meeting is to be held prior to the commencement of the survey.

(3) The Special Survey is to include, in addition to the requirements of the Annual Surveys, exami- nation, tests and checks of sufficient extent to ensure that the hull and related piping, as re-

quired in (5), are in a satisfactory condition and is fit for the intended purpose for the new pe-

riod of class of 5 years to be assigned, subject to proper maintenance and operation and to periodical surveys being carried out at the due dates.

(4) Ballast tanks, including double bottom tanks, pump rooms, compressor rooms, pipe tunnels, cof-

ferdams and void spaces bounding cargo tanks, decks and outer hull are to be examined, and this examination is to be supplemented by thickness measurement and testing as required in Par 4 and Par 5, to ensure that the structural integrity remains effective. The aim of the examina- tion is to discover substantial corrosion, significant deformation, fractures, damages or other structural deterioration, that may be present.

(5) All piping systems within the spaces specified in (4) above, except those covered by 204. 3,

304. 3 and Sec 5-2, 3, are to be examined and operationally tested to working pressure to at- tending Surveyor's satisfaction to ensure that tightness and condition remain satisfactory.

(6) The survey extent of ballast tanks converted to void spaces is to be specially considered in re- lation to the requirements for ballast tanks.

Note : For survey of automatic air pipe heads refer to 403. 1 (17).

(7) A survey in dry dock is to be a part of the Special Survey. The Overall and Close-up Surveys and thickness measurements, as applicable, of the lower portions of the ballast tanks are to be carried out in accordance with the applicable requirements for Special Surveys, if not already

performed.

Note : Lower portions of the ballast tanks are considered to be the parts below light ballast water line.

2. Tank protection

(3) Where the hard protective coating in ballast tanks is found to be in a GOOD condition, the ex- tent of Close-up Surveys and thickness measurements may be specially considered.

3. Extent of Overall and Close-up Survey

(1) An Overall Survey of all tanks and spaces, excluding fuel oil, lube-oil and fresh water tanks, is to be carried out at each Special Survey.

Note : For fuel oil, lube oil and fresh water tanks, reference is to be made to Table 1.2.3.

(2) The minimum requirements for Close-up Surveys at Special Surveys are given in Table 1.2.10.

(3) The Surveyor may extend the Close-up Survey as deemed necessary taking into account the maintenance of the tanks under survey, the condition of the corrosion prevention system and

where tanks have structural arrangements or details which have suffered defects in similar spaces or on similar ships according to available information.

(4) For areas in tanks where hard protective coatings are found in a GOOD condition, the extent of

Close-up Surveys according to Table 1.2.10 may be specially considered.

Note : For examination of automatic air pipe heads, reference is to be made to Table 1.2.7.

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4. Extent of thickness measurement

(1) The minimum requirements for thickness

1.2.11.

(2) The Surveyor may extend the thickness

measurements at Special Survey are given in Table

measurements as deemed necessary. When thickness

measurements indicate substantial corrosion, the extent of thickness

measurements is to be in-

creased to determine the extent of areas of substantial corrosion. Table 1.2.5 may be used as

guidance for these additional thickness measurements. See Guidance

(3) For areas in tanks where hard protective coatings are found to be in a GOOD condition, extent of thickness measurement according to Table 1.2.11 may be specially considered.

(4) Transverse sections are to be chosen where the largest reductions are suspected to occur or

revealed from deck plating measurements.

5. Extent of tank testing

(1) All boundaries of ballast tanks and deep tanks used for water ballast within the cargo area

the

are

to be pressure tested. For fuel oil tanks within the cargo length area, representative tanks are to be pressure tested.

(2) The Surveyor may extend the tank testing as deemed necessary. See Guidance

(3) Tank testing of fuel oil tanks is to be carried out with a head of liquid to the highest point

that liquid will rise under service conditions. Tank testing of fuel oil tanks may be spacially considered based on a satisfactory external examination of the tank boundaries, and a con-

firmation from the Master stating that the pressure testing has been carried out according to the

requirements with satisfactory results.

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Table 1.2.10 Minimum requirements for Close-up Survey at Special Survey of Liquefied Gas Carriers

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3 and Subsequent

1. One web frame in a representative ballast tank of the topside, hopper side and double hull side type (*1)

2. One transverse bulkhead in a bal- last tank (*3)

1. All web frame in a ballast tank, which is to be a double hull side tank or a topside tank. If such tanks are not fitted, another ballast tank is to be selected. (*1)

2. One web frame in each remaining ballast tank (*1)

3. One transverse bulkhead in each ballast tank (*2)

1. All web frames in all ballast tanks (*1)

2. All transverse bulkheads in all bal- last tanks (*2)

(NOTES)

1) (*1) to (*3) mean as follows and the typical midship sections of liquefied gas carriers are illustrated in Annex 1-6 of the Guidance.

(*1) : Complete transverse web frame including adjacent structural members

(*2) : Transverse bulkhead complete, including girder system and adjacent structural members, and adjacent longitudinal bulkhead structure

(*3) : Transverse bulkhead lower part including girder system and adjacent structural members

2) Ballast tanks include topside, double hull side, double bottom, hopper side, or any combined arrangement of the aforementioned, and peak tanks where fitted.

3) For areas in tanks where protective coatings are found to be in GOOD condition, the extent of Close-up Surveys may be specially considered by the Society.

4) For ships having independent tanks of type C, with a midship section similar to that of a general cargo ship, the extent of Close-up Surveys may be specially considered by the Society.

- in particular, in tanks having structural arrangements or details which have suffered defects in similar tanks, or on similar ships according to available information;

- in tanks having structures approved with reduced scantlings.

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Table 1.2.11 Minimum

Carriers

requirements for thickness measurements at Special Survey of Liquefied Gas

Special Survey No. 1

Special Survey No. 2

Special Survey No. 3

Special Survey No. 4 and Subsequent

1. Suspect areas

2. One section of deck plat- ing for the full beam of the ship within 0.5 amidships in way of a ballast tank, if any

3. Measurement for general assessment and recording of corrosion pattern of those structural members subject to Close-up Survey according to Table 1.2.10

1. Suspect areas

2. Within the cargo area:

1) Each deck plate

2) One transverse section within 0.5 amid- ships in way of a bal- last tank, if any

3. Selected wind and water strakes outside the cargo area

4. Measurement for general assessment and recording of corrosion pattern of those structural members subject to Close-up Survey according to Table 1.2.10

1. Suspect areas

2. Within the cargo area:

1) Each deck plate

2) Two transverse sec- tions1)

3) All wind and water strakes

3. Selected wind and water strakes outside the cargo area

4. Measurement for general assessment and recording of corrosion pattern of those structural members subject to Close-up Survey according to Table 1.2.10

1. Suspect areas

2. Within the cargo area:

1) Each deck plate

2) Three transverse sec- tions1)

3) Each bottom plate

4) Duct keel plating and internals

3. All wind and water strakes, full length

4. Measurement for general assessment and recording of corrosion pattern of those structural members subject to Close-up Survey according to Table 1.2.10

(NOTES)

1) At least one section is to include a ballast tank within 0.5 amidships, if any.

2) For ships having independent tanks of type C, with a midship section similar to that of a general cargo ship,

the extent of thickness measurements may be increased to include the tank top plating at the discretion of the Surveyor. See Guidance

3) For areas in spaces where protective coatings are found to be in GOOD condition, the extent of thickness

measurements may be specially considered by the Society.

4) The Surveyor may extend the thickness measurements as deemed necessary. Where substantial corrosion is found, the extent of thickness measurements is to be increased to the satisfaction of the Surveyor. See Guidance

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Section 16 Survey Requirements for Shell and Inner Doors, Etc. of RoRo Ships

1601. General

1. Application

In addition to the other requirements specified in Ch 2, these requirements are applicable to the survey of bow, inner, side shell and stern doors of RoRo passenger(Ro-Pax) and RoRo cargo ships, to the extent appropriate to the arrangement and equipment of each ship.

2. Definitions

(1) A RoRo ship is a ship which utilizes a loading ramp to enable wheeled vehicles to be rol- led-on and rolled-off the ship.

(2) A RoRo passenger ship(Ro-Pax) is a passenger ship with RoRo spaces or special category spaces.

(3) RoRo spaces are spaces not normally sub-divided in any way and normally extending to ei-

ther a substantial length or the entire length of the ship, in which motor vehicles with fuel in their tanks for their own propulsion and/or goods(packaged or in bulk, in or on rail or road cars, vehicles(including road or rail tankers), trailers, containers, pallets, demountable tanks or in

or on similar stowage units or, other receptacles) can be loaded and unloaded normally in a horizontal direction.

(4) Special category spaces are those enclosed vehicle spaces above or below the bulkhead deck,

into and from which vehicles can be driven and to which passengers have access. Special cat- egory spaces may be accommodated on more than one deck provided that the total overall clear height for vehicles does not exceed 10 m .

(5) A Securing device is a device used to keep the door closed by preventing it from rotating about its hinges.

(6) A Supporting device is a device used to transmit external or internal loads from the door to

a securing device and from the securing device to the ship's structure, or a device other than a

securing device, such as a hinge, stopper or other fixed device, that transmits loads from door to the ship's structure.

(7) A Locking device is a device that locks a securing device in the closed position.

the

3. Examples of Guidance.

typical bow, inner, side shell and stern doors are illustrated in

Annex 1-14

of the

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1602. Annual Survey

1. The survey is to consist of an examination to verify, as far as is practicable, that the bow, inner, side shell and stern doors are maintained in a satisfactory condition.

2. Confirmation is to be obtained that no unapproved changes have been made to the bow, inner, side shell and stern doors since the last survey.

3. Documents

If an Operating and Maintenance Manual(OMM) is required, it is to be verified that an approved copy is on board and any possible modifications are included. It is to be verified that documented operating procedures for closing and securing doors are kept on board and posted at an appropriate place. The Surveyor shall examine the OMM with special attention to the register of inspections and its contents as a basis for the survey.

4. Structural examination

Bow, inner, side shell and stern doors are to be examined with particular attention paid to:

(1) Structural arrangement of doors including plating, secondary stiffeners, primary structure, hinging arms and welding;

(2) Shell structure surrounding the opening of the doors and the securing, supporting and locking devices including shell plating, secondary stiffeners, primary structure, and welding;

(3) Hinges and bearings, thrust bearings;

(4) Hull and door side supports for securing, supporting and locking devices;

(5) Close-up Survey of securing, supporting and locking devices including welding, refer to Table

1.2.12.

Whenever a crack is found, an examination with NDT is to be carried out in the surrounding area and for similar items as considered necessary by the Surveyor. See Guidance

5. Measurement of clearances

Clearances of hinges, bearings and thrust bearings are to be required. Where the function test is not satisfactory, dismantling clearances. If dismantling is carried out, a visual examination of

taken, where no dismantling is may be required to measure the hinge pins and bearings together

with NDT of the hinge pin is to be carried out. Clearances of securing, supporting and locking de- vices are to be measured, where indicated in the OMM.

6. Sealing arrangement

An examination of packing material/rubber gaskets and retaining bars or channels, including welding is to be carried out.

7. Drainage arrangement

An examination of drainage arrangement, including bilge wells and drain pipes is to be carried out, where fitted. A test of the bilge system between the inner and outer doors is to be carried out.

8. Function test of doors

Checking of the satisfactory operation of the bow, inner, side shell and stern doors during a com- plete opening and closing operation is to be made, as applicable, including:

(1) Proper working of the hinging arms and hinges;

(2) Proper engagement of the thrust bearings;

(3) Device for locking the door in the open position;

(4) Securing, supporting and locking devices;

(5) Proper sequence of the interlock system for the opening/closing system and the securing and locking devices;

(6) Mechanical lock of the securing devices;

(7) Proper locking of hydraulic securing devices in the event of a loss of the hydraulic fluid, ac- cording to the procedure provided by the OMM;

(8) Correct indication of open/closed position of doors and securing/locking devices at navigation bridge and other control stations;

(9) Isolation of the hydraulic securing/locking devices from other hydraulic systems;

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(10) Confirmation that the operating panels are inaccessible to unauthorized persons;

(11) Verification that a notice plate giving instructions to the effect that all securing devices are to be closed and locked before leaving harbour is placed at each operating panel and supplemented by warning indicator lights;

(12) Examination of electrical equipment for opening, closing and securing the doors.

9. Function test of indicator system

Checking of the satisfactory operation of the indicator system, where fitted, is to be carried out, as applicable, including:

(1) Proper visible indication and audible alarm on the navigation bridge panel, according to the se- lected function "harbour/sea voyage" and on the operating panel;

(2) Lamp test function on both panels;

(3) Verification that it is not possible to

(4) Verification of fail safe performance,

(5) Confirmation that power supply for

turn off the indicator light on both panels;

according to the procedure provided by the OMM;

indicator system is supplied by the emergency source or

other secure power supply and independent of the power supply for operating the doors;

(6) Proper condition of sensors and protection from water, ice formation and mechanical damage.

10. Test of water leakage detection system

Where fitted, the water leakage detection system is to be tested including proper audible alarm on the navigation bridge panel and on the engine control room panel, according to the procedure pro- vided by the OMM.

11. Test of television surveillance system

Where fitted, the television surveillance system is to be tested including proper indication on the navigation bridge monitor and on the engine control room monitor.

12. Tightness test

A hose test or equivalent is to be carried out. If the visual examination and function test have shown satisfactory results, the tightness test of shell doors on RoRo cargo ships need not be car- ried out unless considered necessary by the attending Surveyor. See Guidance

13. NDT and Thickness Measurements

When considered necessary by the Surveyor, NDT and thickness measurements may be required af- ter visual examination and function test. See Guidance

Table 1.2.12 Minimum requirements for Close-up Survey of doors, locking, securing and sup- porting devices and fittings

The following is a list of the devices and fittings and associated welding to be subject to Close-up Survey by the attending Surveyor.

Cylinder securing pins, supporting brackets, back-up brackets(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 connections

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1603. Special Survey

1. The Special Survey is to include, in addition to the requirements of the Annual Survey as required in 1602., examination, tests and checks of sufficient extent to verify that the bow, inner, side shell and stern doors, are in satisfactory condition and considered able to remain in compliance with ap- plicable requirements, subject to proper maintenance and operation in accordance with the Operation and Maintenance Manual(OMM) or manufacturer's recommendations and the periodical surveys being carried out at the due dates for the five year period until the next Special Survey.

2. The examinations of the doors are to be supplemented by thickness measurements and testing to verify compliance with applicable requirements so that the structural and weathertight integrity re- main effective. The aim of the examination is to identify corrosion, significant deformation, frac- tures, damages or other structural deterioration, that may be present.

3. The bow, inner, side shell and stern doors are to be surveyed as follows:

(1) A survey of the items listed in 1602. 4, including Close-up Survey of securing, supporting and locking devices, together with welding, is to be carried out, refer to Table 1.2.12.

(2) Non-destructive testing and thickness measurements are to be carried out on securing, supporting

and locking devices, including welding, to the extent considered necessary by the Surveyor. Whenever a crack is found, an examination with NDT is to be carried out in the surrounding area and for similar items as considered necessary by the Surveyor. See Guidance

(3) The maximum thickness diminution of hinging arms, securing, supporting and locking devices is to be in accordance with the requirements specified by the Society for primary structures, but is not to be more than 15 % of the as-built thickness or the maximum corrosion allowance of the Society, whichever is less. Certain designs may be subject to the Society's special consideration.

See Guidance

(4) Checking the effectiveness of sealing arrangements by hose testing or equivalent is to be carried out.

(5) Clearances of hinges, bearings and thrust bearings are to be taken. Unless otherwise specified in

the OMM or by manufacturer's recommendation, the measurement of clearances on RoRo cargo ships may be limited to representative bearings where dismantling is needed in order to measure

the clearances. If dismantling is carried out, a visual examination of hinge pins and gether with NDT of the hinge pin is to be carried out.

(6) The non-return valves of the drainage system are to be dismantled and examined.

bearings to-

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Section 17 Additional Requirements

1701. Strength and securing of small hatches, fittings and equipment on the fore deck

1. Ships that are described in Pt 4, Ch 9, 101. 1 that are contracted for construction on or after 1 January 2004 are to comply with the requirements specified in Pt 4, Ch 9 by the time of delivery.

2. Ships described in Pt 4, Ch 9, 101. 2 that are contracted for construction prior to 1 January 2004 are to comply with the requirements specified in Pt 4, Ch 9.

(1) For ships which will be 15 years of age or more on 1 January 2004 by the due date of first Intermediate or Special Survey after that date;

(2) For ships which will be 10 years of age or more on 1 January 2004 by the due date of

first Special Survey after that date;

(3) For ships which will be less than 10 years of age on 1 January 2004 by the date on which ship reaches 10 years of age.

the the the

3. Ships described in Pt 4, Ch 9, 101., contracted for construction prior to 1 July 2007, are to com- ply with the requirements specified in Pt 4, Ch 9, 201. of the Guidance relating to the Rules by the relevant compliance date specified in Par 1 or Par 2 above, or by the due date of the first Special Survey after 1 July 2007, whichever is later. Completion prior to 1 July 2007 of a Special Survey with a due date after 1 July 2007 cannot be used to postpone compliance.

1702. Water level detectors on single hold cargo ships other than bulk carriers

Among the ships subject to the requirements specified in Pt 7, Ch 3, 1402. 2, ships constructed before 1 January 2007 shall comply with the requirements specified in Pt 7, Ch 3, 1403. 3 not later than the date of the first Intermediate or Special Survey of the ship to be carried out after 1 January 2007, whichever comes first, but not later than 31 December 2009.

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Section 18 Special Requirements for Ships Subject to Korean Ship Safety Act or Fishing Vessels Act

1801. Special requirements for ships subject to Korean Ship Safety Act See Guidance

1. In application to 202. 2(Fire-extinguishing appliances at Annual Survey), 302. 2(Fire-extinguishing appliances at Intermediate Survey) and 404.(Fire-extinguishing appliances at Special Survey), the survey for fire-extinguishing appliances is to be in accordance with the relevant requirements of Korean Ship Safety Act.

2. In application to 203.(Machinery, electrical installations and additional installations at Annual Survey), insulation resistance test and performance test of electrical installations are to be made. However, these tests may be dispensed with, where it is found that the measured records of in- sulation resistance remain efficient and they comply with the requirements specified in Pt 6, Ch 1, 1801. 1.

3. In application to 301.(Intermediate Survey), Intermediate Surveys for Ships of 24 m in length and above and 30 years of age and over after launching date are to be carried out within 3 months be- fore or after each anniversary date.

4. At the Intermediate Survey according to Par 3 above, the following relevant requirements are ap- plied only at the Intermediate Survey carried out within 3 months before or after the second or third anniversary date from the completion date of the previous Special Survey in accordance with 301.

(1) 1403.

(2) 1503.

(3) Ch 3, 201. 1 (3), (4), (6) and 203.

(4) Ch 3, 303.

(5) Ch 3, 403.

(6) Ch 3, 503.

(7) Ch 3, 603.

5. At the Intermediate Survey according to Par 3 above, the surveys in 303.(Machinery, electrical in- stallations and additional installations at Intermediate Survey) Par 1 to Par 4 are applied only at the Intermediate Survey carried out within 3 months before or after the second or third anniversary date from the completion date of the previous Special Survey in accordance with 301.

6. In application to 303.(Machinery, electrical installations and additional installations at Intermediate Survey), spare parts for ships are to be examined.

7. In application to Pt 9, Ch 2(Cargo handling appliances), the cargo handling appliances, except car- go ramps, of safe working load not less than 1 ton are to be included.

90 Rules for the Classification of Steel Ships 2015

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1802. Special requirements for ships subject to Korean Fishing Vessels Act

1. When a Korean flagged Deep-Sea Fishing Vessel(except for factory ship or carrier) approved for pelagic fishing by the Korean Government, at the time of Annual or Intermediate Survey, is not at the location where the survey can be taken due to the fishing operation in foreign waters, the rele- vant survey may be postponed within 12 months from the anniversary date through the approval of the Society.

2. For fishing vessels of 24 m in length and above and less than 5 years of age after launching date, Annual Surveys may be omitted.

3. For fishing vessels of 24 m in length and above and 20 years of age and over

after launching

date, the minimum requirements for thickness measurements at Special Survey are to be extended to add engine room forward & afterward transverse bulkheads and seachests.

4. For fishing vessels of 24 m in length and above and 30 years of age and over

after launching

date, the requirements for thickness measurements at Intermediate Survey are to be the same extent as the previous Special Survey.

5. In application to 203., 303. and 502.(Machinery, electrical installations and additional installations at Annual Survey, Intermediate Survey and Special Survey), insulation resistance test and perform- ance test of electrical installations are to be made.

6. In application to 303.(Machinery, electrical installations and additional installations at Intermediate Survey), for engines specified in 303. 2 and 3, operation test of alarms and safety devices is to be

made. However, 5 years.

this test may be omitted for an engine which is installed onboard within less than

Pt 1 Classification and Surveys

Ch 3 Hull Surveys of Ships Subject to the Enhanced Survey Programme Pt 1, Ch 3

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