Section 2 Annual Surveys - Hull and machinery requirements
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Ships, July 2022 - Part 1 Regulations - Chapter 3 Periodical Survey Regulations - Section 2 Annual Surveys - Hull and machinery requirements

Section 2 Annual Surveys - Hull and machinery requirements

2.1 General

2.1.1 Annual Surveys are to be held concurrently with statutory annual or other relevant statutory surveys, wherever practicable.

2.1.2 At Annual Surveys, the Surveyor is to examine the ship and machinery, so far as necessary and practicable, in order to be satisfied as to their general condition.

2.1.3 For additional requirements for ships for liquefied gases, see Pt 1, Ch 3, 9 Ships for liquefied gases.

2.1.4 For ships which are required by International Convention to comply with the ISM Code - International Management Code and Revised Guidelines on Implementation of the ISM Code (ISM Code), the Surveyor is to review the overall effectiveness of the Code onboard ship. This is to be undertaken regardless of the organisation issuing the Safety Management Certificate (SMC).

2.1.5 For ships assigned the notation ‘laid-up’, in lieu of the normal Annual Survey requirements a general examination of the hull and machinery is to be carried out.

2.2 Annual Surveys

2.2.1 The survey is to include:

  1. An examination for the purpose of ensuring, as far as practicable, that the hull, hatch covers, hatch coamings, closing appliances, equipment and related piping are maintained in a satisfactory condition and shall take into account the service history, condition and extent of the corrosion prevention system of ballast tanks and areas identified in the ship’s classification records.

  2. Examination of weather decks, ship side plating above the waterline, hatch cover and coamings.

  3. Examination of watertight penetrations as far as practicable. Where applicable, the electrical cables schedule of watertight penetrations (e.g. cable transit seal systems register) is to be reviewed to confirm it is being maintained, see Pt 3, Ch 1, 5.3 Plans to be supplied to the ship 5.3.1 and Pt 6, Ch 2, 11.11 Penetration of bulkheads and decks by cables.

  4. Examination of the weld connection between air pipes, ventilators and deck plating.

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

  6. Examination of flame screens on air pipes to all bunker tanks.

  7. Examination of ventilators including closing devices, if any.

  8. The Surveyor is to be satisfied regarding the efficient condition of:

    • exposed casings, skylights, flush deck scuttles, deckhouses and companionways, superstructure bulkheads, side, bow and stern doors, side scuttles and deadlights, chutes and other openings, together with all closing appliances.
    • scuppers and sanitary discharges (so far as practicable); valves on discharge lines (so far as practicable) and their controls; guard rails and bulwarks; freeing ports, gangways and life-lines; fittings and appliances for timber deck cargoes.
    • bilge level detection and alarm systems on ships assigned a UMS notation.

2.2.2 The following requirements for hatch covers and coamings are applicable:

  1. The Surveyor is to obtain confirmation that no unapproved changes have been made to the hatch covers, hatch coamings and their securing and sealing devices since the previous survey.

  2. Where mechanically operated steel hatch covers are fitted, Surveyors are to confirm the satisfactory condition of:

    • hatch covers;
    • tightness devices of longitudinal, transverse and intermediate cross junctions (gaskets, gasket lips, compression bars, drainage channels);
    • clamping devices, retaining bars, cleating;
    • chain or rope pulleys;
    • guides;
    • guide rails and track wheels;
    • stoppers, etc;
    • wires, chains, gypsies, tensioning devices;
    • hydraulic system essential to closing and securing;
    • safety locks and retaining devices.
  3. Where portable hatch covers, wooden or steel pontoons are fitted, Surveyors are to confirm the satisfactory condition of:

    • wooden covers and portable beams, carriers or sockets for the portable beam, and their securing devices;
    • steel pontoons;
    • tarpaulins;
    • cleats, battens and wedges;
    • hatch securing bars and their securing devices;
    • loading pads/bars and the side plate edge;
    • guide plates and chocks;
    • compression bars, drainage channels and drain pipes (if any).
  4. The Surveyor is to confirm the satisfactory condition of hatch coaming plating and their stiffeners, where applicable.

  5. The Surveyor is to carry out random checking of the satisfactory operation of mechanically operated hatch covers including:

    • stowage and securing in open condition,
    • proper fit and efficiency of sealing in closed condition,
    • operational testing of hydraulic and power components, wires, chains and link drives.
  6. Where considered necessary by the Surveyor, the effectiveness of sealing arrangements may be proved by hose or chalk testing supplemented by dimensional measurements of seal compressing components.

  7. For general dry cargo ships the survey is to include a close-up survey of the hatch covers, hatch coaming and stiffeners.

  8. For bulk carriers the following requirements are also applicable:

    1. The survey is to include a close-up survey of the hatch covers, hatch coaming and stiffeners.

    2. A thorough survey of cargo hatch covers and coamings is only possible by their examination in an open and closed position, including verification of the proper opening and closing operation. As such, the hatch cover sets located in the forward 25 per cent of the ship's length and at least one other additional set are to be surveyed open, closed and in operation to the full extent on each direction in accordance with (Pt 1, Ch 3, 2.2 Annual Surveys 2.2.2.(e)) above. When selecting hatch cover sets it should be ensured that all sets are subject to survey at least once in every five-year Special Survey period. The closing of the covers is to include the fastening of all peripheral and cross joint cleats or other securing devices, with particular attention to be paid to the condition of the hatch covers located in the forward 25 per cent of the ship's length, where sea loads are normally greatest.

    3. If there are indications of difficulty in operating and securing hatch covers, then additional sets are to be tested in operation at the discretion of the Surveyor.

    4. Where the cargo hatch securing system does not function properly, repairs are to be carried out under the supervision of the Surveyor. Where hatch covers or coamings undergo substantial repairs, the strength of securing devices shall be upgraded to comply with Pt 4, Ch 7, 12.3 Closing arrangements.

    5. Surveyors are to survey the sealing arrangements of perimeter and cross joints (gaskets for condition of permanent deformation, flexible seals on combination carriers, gasket lips, compression bars, drainage channels and non-return valves).

2.2.3 The Surveyor is to confirm that, where required, an approved loading instrument together with its operation manual are available on board, see Pt 3, Ch 4, 8 Loading guidance information. The operation of the loading instrument is to be verified in accordance with LR's certification procedure.

2.2.4 The anchoring and mooring equipment is to be examined so far as practicable.

2.2.5 For towing ships (e.g. tugs), where towing winch emergency release systems are fitted, these are to be examined and operationally tested under no-load condition, including alarms, means of emergency release of towline in the event of a blackout and any additional sources of energy fitted for this purpose.

2.2.6 The watertight doors in watertight bulkheads, their indicators and alarms, are to be examined and tested (locally and remotely), together with an examination of watertight bulkhead penetrations, so far as practicable.

2.2.7 If a rig is fitted that is used for propulsion by wind force, then a general examination of the mast(s), standing rigging, sail/wind propulsion system and associated structure and equipment is to be carried out. The examination may be undertaken by a Surveyor and/or by a firm approved by LR.

2.2.8 The Surveyor is to examine and test in operation all main and auxiliary steering arrangements including their associated equipment and control systems, and verify that log book entries have been made in accordance with statutory requirements where applicable.

2.2.9 The Surveyor is to be satisfied regarding the freeboard marks on the ship's side.

2.2.10 The Surveyor is to generally inspect the machinery and boiler spaces, with particular attention being given to the propulsion system, auxiliary machinery and to the existence of any fire and explosion hazards. Emergency escape routes are to be checked to ensure that they are free of obstruction.

2.2.11 The means of communication between the navigating bridge and the machinery control positions, as well as the bridge and the alternative steering position, if fitted, are to be tested.

2.2.12 The bilge pumping systems for each watertight compartment, including bilge wells, extended spindles, self-closing drain cocks, valves fitted with rod gearing or other remote operation, pumps and level alarms, where fitted, are to be examined and operated as far as practicable and all confirmed to be satisfactory. Any hand pumps provided are to be included.

2.2.13 Piping systems containing fuel oil, lubricating oil or other flammable liquids are to be generally examined and operated as far as practicable, with particular attention being paid to tightness, fire precaution arrangements, flexible hoses and sounding arrangements.

2.2.14 The Surveyor is to be satisfied regarding the condition of non-metallic joints in piping systems which penetrate the hull, where both the penetration and the non-metallic joint are below the deepest load waterline.

2.2.15 The main propulsion, essential auxiliary and emergency generators including safety arrangements, controls and foundations are to be generally examined. Surveyors are to confirm that Periodical Surveys of engines have been carried out as required by the Rules and that safety devices have been tested.

2.2.16 The boilers, other pressure vessels and their appurtenances, including foundations, controls, high pressure and waste steam piping and insulation and gauges, are to be generally examined. Surveyors should confirm that Periodical Surveys of boilers and other pressure vessels have been carried out as required by the Rules.

2.2.17 For boilers, the safety devices are to be tested, and the safety valves are to be operated using the relieving devices. For exhaust gas heated economisers/boilers, the safety valves are to be tested at sea by the Chief Engineer and details recorded in the log book.

2.2.18 The operation and maintenance records, repair history and feed water chemistry records of boilers are to be examined.

2.2.19 For other pressure vessels, the safety devices are to be examined.

2.2.20 The electrical equipment and cabling forming the main and emergency electrical installations are to be generally examined under operating conditions so far as practicable. The satisfactory operation of the main and emergency sources of power and electrical services essential for safety in an emergency is to be verified; where the sources of power are automatically controlled they should be tested in the automatic mode. Bonding straps for the control of static electricity and earthing arrangements are to be examined where fitted.

2.2.21 Where Lithium-Ion battery system installations with total system capacity exceeding 20 kWh are used as a power source for essential or emergency systems, testing of the following is to be conducted annually so far as is practicable:

  • manual and automatic safety functions; and
  • monitoring and control functions.
2.2.22 The safety aspects of spaces or compartments containing Lithium-Ion batteries used as a power source for essential or emergency systems are to be examined as applicable to the installation. This could include examinations of:
  1. structural fire protection;
  2. fixed fire detection;
  3. fixed firefighting system(s);
  4. ventilation and associated dampers;
  5. off-gas detection, exhaust and/or extraction arrangement;
  6. integrity of battery crates, trays, boxes, shelves and other structural parts;
  7. battery cooling arrangement;
  8. electrical power cabling, switchgear and converters; and
  9. EEBD (emergency escape breathing device) and means of escape.

2.2.23 The electrical installation in areas which may contain flammable gas or vapour and/or combustible dust is to be examined in order to verify that it is in good condition and has been properly maintained.

2.2.24 For main propulsion, essential auxiliary and emergency machinery control engineering systems, a general examination of the equipment and arrangements is to be carried out. Records of modifications are to be made available for review by the attending Surveyor. The documentation required by Pt 6, Ch 1 Control Engineering Systems, including configuration management, are to be reviewed following system modifications to confirm compliance with applicable Rules. Satisfactory operation of the safety devices and control systems is to be verified. For ships having UMS or CCS notation, a general examination of the control engineering equipment required for these notations is also to be carried out.

2.2.25 For ships fitted with an electronically controlled engine for main propulsion, essential auxiliary or emergency power purposes the following is to be carried out to the satisfaction of the Surveyor:

  1. Verification of evidence of satisfactory operation of the engine and where possible this is to include a running test under load.

  2. Verification of satisfactory operation of the safety devices and control, alarm and monitoring systems.

  3. Verification that any changes to the software or control, alarm, monitoring and safety systems that affect the operation of the engine have been assessed by LR and are under configuration management control.

2.2.26 Dead ship starting arrangements for bringing machinery into operation without external aid are to be tested to the Surveyor's satisfaction.

2.2.27 On ships fitted with a dynamic positioning system, the control system and associated machinery items are to be generally examined and tested to demonstrate that they are in good working order. For ships classed with DP (AA) or DP (AAA) notations Surveyors are to review records of the annual testing to confirm the ship’s ability to keep position after single failures of any component or system and, in addition, Surveyors are to witness testing conducted alongside as far as is practicable.

2.2.28 For ships to which a PM or PMC notation has been assigned in accordance with Pt 7, Ch 8, 1.2 Classification notations 1.2.1.(b), the thruster assisted positional mooring system, control system and associated machinery items are to be generally examined and tested under operating conditions to an approved Test Schedule.

2.2.29 For ships fitted with positional mooring equipment in accordance with Pt 7, Ch 8 Positional Mooring and Thruster-Assisted Positional Mooring Systems, a schedule or rota of moorings to be examined at Annual Survey should be agreed for component parts of the positional moorings.

2.2.30 For ships having an OPS notation assigned, a General Examination of on-shore power supply arrangements is to be carried out in accordance with Pt 7, Ch 13 On-shore Power Supplies.

2.2.31 For ships to which Pt 6, Ch 4 Fire Protection, Detection and Extinction Requirements applies, the arrangements for fire protection, detection and extinction are to be examined and are to include:

  1. Verification, so far as practicable, that no significant changes have been made to the arrangement of structural fire protection.

  2. Verification of the operation of manual and/or automatic doors where fitted.

  3. Verification that fire-control plans are properly posted.

  4. Examination, so far as possible, and testing as feasible, of the fire and/or smoke detection and alarm system(s).

  5. Examination of fire main system, and confirmation that each fire pump, including the emergency fire pump can be operated separately so that the two required powerful jets of water can be produced simultaneously from different hydrants.

  6. Verification that fire-hoses, nozzles, applicators and spanners are in good working condition and situated at their respective locations.

  7. Examination of fixed fire-fighting systems controls, piping, instructions and marking, checking for evidence of proper maintenance and servicing, including date of last systems tests.

  8. Verification that all portable and semi-portable fire-extinguishers are in their stowed positions, checking for evidence of proper maintenance and servicing, conducting random checks for evidence of discharged containers.

  9. Verification, so far as practicable, that the remote control for stopping fans and machinery and shutting-off fuel supplies in machinery spaces and, where fitted, the remote controls for stopping fans in accommodation spaces and the means of cutting off power to the gallery are in good working order.

  10. Examination of the closing arrangements of ventilators, funnel annular spaces, skylights, doorways and tunnels, where applicable.

  11. Verification that the firemen's outfits are complete and in good condition.

2.2.32 The examination of salt-water ballast tanks is to be carried out as follows:

  1. Salt-water ballast tanks, other than double bottom ballast tanks, on all ships (excluding oil tankers and chemical tankers) where it has been identified at a previous Special Survey or Intermediate Survey that:

    1. A hard protective coating has not been applied from the time of construction; or

    2. A soft or semi-hard coating has been applied; or

    3. A hard protective coating is found to be in POOR condition, as defined in 1.5, and the hard protective coating is not repaired to the satisfaction of the Surveyor.

      If the conditions listed above are applicable to double bottom ballast tanks, then these tanks may be subject to examination at the Annual Survey at the discretion of the Surveyor.

  2. Salt-water ballast tanks on oil tankers (including ore/oil and ore/bulk/oil ships) and chemical tankers where it has been identified at a previous Special Survey or Intermediate Survey that:

    1. A hard protective coating has not been applied from the time of construction; or

    2. A soft or semi-hard coating has been applied; or

    3. The hard protective coating is found to be in less than GOOD condition, as defined in Pt 1, Ch 3, 1.5 Definitions, and the hard protective coating is not repaired to the satisfaction of the Surveyor.

  3. The examination of the salt-water ballast tanks, in accordance with the above, is to include thickness measurements to confirm the condition of the hull structure.

2.2.33 The Surveyor is to carry out an examination and thickness measurement of structure identified at the previous Special Survey or Intermediate Survey as having substantial corrosion, as defined in Pt 1, Ch 3, 1.5 Definitions. This requirement does not apply to cargo tanks of oil tankers and chemical tankers. The extent of thickness measurements is to be in accordance with the appropriate Tables in Sections Pt 1, Ch 3, 5 Special Survey - General - Hull requirements, Pt 1, Ch 3, 6 Special Survey - Bulk carriers - Hull requirements, Pt 1, Ch 3, 7 Special Survey - Oil tankers (including ore/oil ships and ore/bulk/oil ships) - Hull requirements or Pt 1, Ch 3, 8 Special Survey - Chemical Tankers - Hull requirements, as applicable, to determine the full extent of the corrosion pattern. The survey will not be considered complete until these additional thickness measurements have been carried out. For cargo holds and ballast tanks of bulk carriers built in accordance with the IACS Common Structural Rules (CSR), the annual thickness measurement may be dispensed with where a protective coating has been applied in accordance with the coating manufacturer’s requirements and is maintained in good condition. Steel renewal requirements have been separately determined according to date of contract for construction for:

  1. cargo hold hatch covers and coamings under IACS UR S21 and UR S21A; and

  2. bulk carriers’ corrugated transverse watertight hold bulkheads under IACS UR S18.

Where the gauged thickness is within the range t net + 0,5 mm and t net + 1,0 mm, a coating (applied in accordance with coating manufacturer’s requirements) or annual gauging may be adopted as an alternative to steel renewal. See Pt 1, Ch 3, 5.6 Thickness measurement 5.6.7, Pt 1, Ch 3, 6.7 Thickness measurement 6.7.5 and Pt 1, Ch 3, 7.7 Thickness measurement 7.7.4.

2.2.34 For oil tankers (including ore/bulk/oil ships and ore/oil ships), in addition to the applicable requirements of Pt 1, Ch 3, 2.2 Annual Surveys 2.2.1 to Pt 1, Ch 3, 2.2 Annual Surveys 2.2.11, the following are to be dealt with where applicable:

  1. Examination of cargo tank openings including gaskets, covers, coamings and screens.

  2. Examination of cargo tank venting arrangements including secondary means of venting, or over/under pressure alarms where fitted, with associated pressure/vacuum valves and flame screens.

  3. Examination of flame screens on vents to all bunker, oily ballast and oily slop tanks and void spaces, so far as practicable.

  4. Examination of cargo, crude oil washing, bunker, ballast and vent piping systems together with flame arresters and pressure/vacuum valves, as applicable above the upper deck within the cargo tank area, including vent masts and headers.

  5. Verification that no potential sources of ignition such as loose gear, excessive products in the bilges, excessive vapours, combustible materials, etc. are present in or near the cargo pump room and that access ladders are in good condition.

  6. Examination of cargo pump rooms and pipe tunnels (where fitted) and examination of all pump room bulkheads for signs of leakage or fractures and, in particular, the sealing arrangements of all penetrations in these bulkheads.

  7. Verification that the pump room ventilation system is operational, ducting intact, dampers operational and screens are clean.

  8. For ships to which Pt 6, Ch 4 Fire Protection, Detection and Extinction Requirements applies, the external examination of the piping and cut-out valves of cargo tank and cargo pump room fixed fire-fighting system.

  9. For ships to which Pt 6, Ch 4 Fire Protection, Detection and Extinction Requirements applies, verification that the deck foam system and deck sprinkler system are in good operating condition.

  10. Examination of the condition of all piping systems in the cargo pump room so far as practicable.

  11. Examination, so far as practicable, of cargo, bilge, ballast and stripping pumps for excessive gland seal leakage, verification of proper operation of electrical and mechanical remote operating and shutdown devices and operation of pump room bilge system, and checking that pump foundations are intact.

  12. Verification that installed pressure gauges on cargo discharge lines and level indicator systems are operational.

  13. Verification that at least one portable instrument for measuring flammable vapour concentrations is available, together with a sufficient set of spares and a suitable means of calibration.

  14. Examination of any inert gas system, see Pt 1, Ch 3, 2.2 Annual Surveys 2.2.36.

  15. For ballast tanks, in areas where substantial corrosion, as defined in 1.5, has been noted then additional measurements are to be carried out in accordance with Table 3.7.7 Thickness measurement - Single hull oil tankers, ore/oil ships and ore/bulk/oil ships - Bottom structure with substantial corrosion to Table 3.7.15 Thickness measurement - Double hull oil tankers - Transverse watertight and swash bulkhead structure in cargo tanks with substantial corrosion, as applicable. The survey will not be considered complete until these additional thickness measurements have been carried out.

  16. Verification that any special arrangements made for bow or stern loading and unloading are in good condition.

2.2.35 For chemical tankers, in addition to the applicable requirements of Pt 1, Ch 3, 2.2 Annual Surveys 2.2.1 to Pt 1, Ch 3, 2.2 Annual Surveys 2.2.34, the following are to be dealt with, where applicable:

  1. Examination of gauging devices, high level alarms and valves associated with overflow control.

  2. Verification that any devices provided for measuring the temperature of the cargo and any associated alarms are satisfactory.

  3. Examination of the cargo heating/cooling system sampling arrangements where fitted.

  4. Verification that wheelhouse doors and windows, side scuttles and windows in superstructure and deckhouse ends facing the cargo area are in good condition.

  5. Verification that pump discharge pressure gauges fitted outside the cargo pump rooms are satisfactory.

  6. Verification that pumps, valves and pipelines are identified and distinctively marked.

  7. Verification that the remote operation of the cargo pump room bilge system is satisfactory.

  8. Verification that cargo pump room rescue arrangements are in order.

  9. Verification that removable pipe lengths or other approved equipment necessary for cargo separation are available, and satisfactory.

  10. Verification that the ventilation system including portable equipment, if any, of all spaces in the cargo area is operational.

  11. Verification that arrangements are made for sufficient inert/padding/drying gas to be carried to compensate for normal losses and that means are provided for monitoring of ullage spaces.

  12. Verification that arrangements are made for sufficient medium to be carried where drying agents are used on air inlets to cargo tanks.

  13. Verification that suitable protective clothing is available for crew engaged in loading and discharging operations and that suitable storage is maintained.

  14. Verification that the requisite safety equipment and associated breathing apparatus with requisite air supplies and emergency escape respiratory and eye protection, if required, are in good condition and are properly stowed.

  15. Verification that medical first aid equipment including stretchers and oxygen resuscitation is in good condition and that satisfactory arrangements are made for antidotes for cargoes actually carried to be on board.

  16. Verification that decontamination arrangements are operational.

  17. Verification that the requisite gas detection instruments are on board and that satisfactory arrangements are made for the supply of any required vapour detection tubes.

  18. Verification that the cargo sample stowage arrangements are in good condition.

  19. Verification that, if applicable, the provisions made for chemicals which have special requirements listed in Chapter 17 of the Rules and Regulations for the Construction and Classification of Ships for the Carriage of Liquid Chemicals in Bulk, July 2022 are in order.

  20. For ballast tanks, in areas where substantial corrosion, as defined in Pt 1, Ch 3, 1.5 Definitions, has been noted then additional measurements are to be carried out in accordance with Table 3.8.5 Thickness measurement - Single and double hull chemical tankers - Bottom, inner bottom and hopper structure with substantial corrosion, Table 3.8.6 Thickness measurement - Single and double hull chemical tankers - Deck structure with substantial corrosion, Table 3.8.7 Thickness measurement - Single and double hull chemical tankers - Side shell and longitudinal bulkheads with substantial corrosion and Table 3.8.8 Thickness measurement - Single and double hull chemical tankers - Transverse watertight bulkheads and swash bulkheads with substantial corrosion. The survey will not be considered complete until these additional thickness measurements have been carried out.

2.2.36 For inert gas systems, where fitted, the following are to be dealt with:

  1. External examination of the condition of piping including vent piping above the upper deck in the cargo tank area and overboard discharges through the shell so far as practicable, together with components for signs of corrosion or gas leakage/effluent leakage.

  2. Verification of the proper operation of both inert gas blowers.

  3. Checking the scrubber room ventilation system.

  4. Checking, so far as practicable, of the deck water seal for automatic filling and draining and checking for presence of water carry-over. Checking the operation of the non-return valve.

  5. Testing of all remotely operated or automatically controlled valves including the flue gas isolating valve(s).

  6. Checking the interlocking features of soot blowers.

  7. Checking that the gas pressure regulating valve automatically closes when the inert gas blowers are secured.

  8. Checking, so far as practicable, the following alarms and safety devices of the inert gas system using simulated conditions where necessary:

    1. high oxygen content of gas in the inert gas main;

    2. low gas pressure in the inert gas main;

    3. low pressure in the supply to the deck water seal;

    4. high temperature of gas in the inert gas main;

    5. low water pressure to the scrubber;

    6. accuracy of portable and fixed oxygen measuring equipment by means of calibration gas.

2.2.37 For bulk carriers, in addition to the applicable requirements of Pt 1, Ch 3, 2.2 Annual Surveys 2.2.1 to Pt 1, Ch 3, 2.2 Annual Surveys 2.2.33, the following are to be dealt with, where applicable:

  1. Examination of cargo holds in accordance with Table 3.2.1 Bulk carriers - Annual Surveys is required.

  2. Where substantial corrosion, as defined in Pt 1, Ch 3, 1.5 Definitions, has been noted then additional measurements are to be carried out in accordance with Table 3.6.5 Thickness measurement - Single skin bulk carriers - Shell plating and stiffening, with substantial corrosion, Table 3.6.6 Thickness measurement - Single skin bulk carriers - Double bottom and hopper structure, with substantial corrosion, Table 3.6.7 Thickness measurement - Single and double skin bulk carriers - Transverse bulkheads in cargo holds, with substantial corrosion, Table 3.6.8 Thickness measurement - Single skin and double skin bulk carriers - Deck structure* with substantial corrosion , Table 3.6.9 Thickness measurement - Double skin bulk carriers - Double side space structure (including wing void spaces of ore carriers), with substantial corrosion and Table 3.6.10 Thickness measurement - Double skin bulk carriers - Double side space structure (including wing void spaces of ore carriers), with substantial corrosion. The survey will not be considered complete until these additional thickness measurements have been carried out.

For cargo holds and ballast tanks of bulk carriers built in accordance with the IACS Common Structural Rules (CSR), the annual thickness measurement may be dispensed with where a protective coating has been applied in accordance with the coating manufacturer’s requirements and is maintained in good condition. Steel renewal requirements have been separately determined according to date of contract for construction for:

  1. cargo hold hatch covers and coamings under IACS UR S21; and

  2. corrugated transverse watertight hold bulkheads under IACS UR S18.

Where the gauged thickness is within the range t net + 0,5 mm and t net + 1,0 mm, a coating (applied in accordance with coating manufacturer’s requirements) or annual gauging may be adopted as an alternative to steel renewal. See Pt 1, Ch 3, 5.6 Thickness measurement 5.6.7 and Pt 1, Ch 3, 6.7 Thickness measurement 6.7.5.

  1. For ships fitted with water level detectors in cargo holds, ballast tanks forward of the collision bulkhead and any dry or void space which extends forward of the foremost cargo hold, an examination and a test, at random, of the water ingress detection systems and of their alarms is to be carried out.

  2. For ships fitted with a means for draining and pumping ballast tanks forward of the collision bulkhead and the bilges of dry spaces, any part of which extends forward of the foremost cargo hold, an examination and a test of the draining and pumping systems, including their controls, is to be carried out.

  3. Examination of bunker and vent piping systems, including ventilators.

2.2.38 For general dry cargo ships, in addition to the applicable requirements of Pt 1, Ch 3, 2.2 Annual Surveys 2.2.1, the following are required for ships over 10 years of age:

  1. Overall survey of one forward and one after cargo hold and their associated ‘tween deck spaces.

  2. When considered necessary by the Surveyor, thickness measurement is to be carried out. If the results of thickness measurement indicate substantial corrosion, the extent of thickness measurement is to be in accordance with Pt 1, Ch 3, 5 Special Survey - General - Hull requirements, Table 3.5.6 Thickness measurement - Additional requirements in way of structure identified with substantial corrosion. The survey will not be considered complete until these additional thickness measurements have been carried out. Steel renewal requirements have been separately determined according to date of contract for construction for cargo hold hatch covers and coamings under IACS UR S21A. Where the gauged thickness is within the range t net + 0,5 mm and t net + 1,0 mm, a coating (applied in accordance with coating manufacturer’s requirements) or annual gauging may be adopted as an alternative to steel renewal. See Pt 1, Ch 3, 5.6 Thickness measurement 5.6.7.

Table 3.2.1 Bulk carriers - Annual Surveys

Ships between 10 and 15 years old Ships greater than 15 years old
  1. Overall Survey of
    1. all cargo holds on single skin ships.
    2. two selected cargo holds on double skin ships.
  2. Close-up Survey of at least 25 per cent of the cargo hold side shell frames, their lower end attachments and adjacent shell plating in the forward cargo hold on single skin ships
  3. Examination of all piping and penetrations in cargo holds including overboard piping.
See Notes 1, 2, 3, and 4
  1. Overall Survey of all cargo holds
  2. Close-up Survey of at least 25 per cent of the cargo hold side shell frames, their lower end attachments and adjacent shell plating in the forward cargo hold and one other selected cargo hold on single skin ships
  3. Examination of all piping and penetrations in cargo holds including overboard piping
See Notes 1, 2, 3, and 4

Note The requirements in this Table apply to both single skin and double skin ships, unless stated otherwise.

Note 1. Close-up Survey is required within the area of the lower one-third of the length of the cargo hold side shell frames.

Note 2. Where the Survey reveals the need for remedial measures, the Survey is to be extended to include a Close-up Survey of all of the cargo hold side shell frames and adjacent shell plating of that cargo hold, as well as a Close-up Survey of sufficient extent of all remaining cargo holds.

Note 4. Where protective coatings are found in GOOD condition, as defined in Pt 1, Ch 3, 1.5 Definitions, the extent of the Close-up Survey may be specially considered. When considered necessary by the Surveyor, thickness measurement is to be carried out. However, prior to any coating or recoating of cargo holds, scantlings are to be confirmed by thickness measurement with the Surveyor in attendance.

2.2.39 For general dry cargo ships, in addition to the applicable requirements of Pt 1, Ch 3, 2.2 Annual Surveys 2.2.1, the following are required for ships over 15 years of age:

  1. Overall survey of all cargo holds and 'tween deck spaces.

  2. Close-up Survey of at least 25 per cent of shell frames, including their end attachments and adjacent shell plating in a forward lower cargo hold and one other selected lower cargo hold. Close-up Survey is to include the lower one third length of the shell frames.

  3. Where the survey reveals the need for remedial measures, then the survey is to be extended to include the Close-up Survey of all shell frames and adjacent shell plating in those cargo holds and associated tween deck spaces, as well as a Close-up Survey of sufficient extent of all remaining cargo holds and tween deck spaces.

  4. Where the protective coatings in cargo holds are found in GOOD condition, as defined in Pt 1, Ch 3, 1.5 Definitions, the extent of Close-up Survey may be specially considered.

  5. When considered necessary by the Surveyor, thickness measurement is to be carried out. If the results of thickness measurement indicate substantial corrosion, the extent of thickness measurement is to be in accordance with Table 3.5.6 Thickness measurement - Additional requirements in way of structure identified with substantial corrosion in Pt 1, Ch 3, 5 Special Survey - General - Hull requirements. The survey will not be considered complete until these additional thickness measurements have been carried out. Steel renewal requirements have been separately determined according to date of contract for construction for cargo hold hatch covers and coamings under IACS UR S21A. Where the gauged thickness is within the range t net + 0,5 mm and t net + 1,0 mm, a coating (applied in accordance with coating manufacturer’s requirements) or annual gauging may be adopted as an alternative to steel renewal. See Pt 1, Ch 3, 5.6 Thickness measurement 5.6.7.

2.2.40 For ship-borne barges where surveys are permitted in accordance with Pt 1, Ch 2, 3.5 Existing ships – Periodical Surveys 3.5.7, see Pt 1, Ch 3, 3 Intermediate Surveys - Hull and machinery requirements.

2.2.41 For roll on-roll off ships (i.e. those that utilise a loading ramp which enables wheeled vehicles to be rolled on and rolled off the ship), in addition to the requirements of Pt 1, Ch 3, 2.2 Annual Surveys 2.2.1, the requirements of Pt 1, Ch 3, 22 Bow, inner, side shell and stern doors on Ro-Ro ships are to be complied with, as applicable. For ships other than roll on-roll off ships, fitted with bow doors, inner doors, side doors and stern doors, in addition to the requirements of Pt 1, Ch 3, 2.2 Annual Surveys 2.2.1, the following are to be satisfactorily dealt with, as applicable:

  1. Verification of the freedom of movement of doors, and operation of their power units.

  2. Examination of the door structure and surrounding ship structure.

  3. Examination of the door sealing arrangements including gaskets and retaining bars.

  4. Examination of the door cleating, locking and securing arrangements.

  5. Examination of the door hinging arrangements.

  6. Verification of the local and/or remote control of the securing devices/cleats.

  7. Examination of all equipment associated with the opening, closing and securing of the door, e.g. wire ropes, chains, sheaves, rollers, guides, shackles, etc.

  8. Verification of the tightness of the doors.

  9. Examination and testing of remote control panels and associated indicator lights, closed circuit television systems, water leakage indicator lights and alarm systems.

  10. Examination of the required notice boards and verification of log entries.

  11. Verification of the satisfactory testing of the bilge systems for the space between the inner and outer bow doors and of the vehicle deck.

  12. Verification that the approved Operation and Maintenance Manual is on board and satisfactorily maintained.

2.2.42 For navigational arrangements for periodic one man watch and integrated bridge systems, Annual Surveys are to be carried out in accordance with the approved test schedule as required by Pt 7, Ch 9, 1.2 Information and plans required to be submitted 1.2.1 to ascertain that the equipment and arrangements required for the applicable class notation(s) are being maintained in good working order. At the time of the survey, relevant statutory certificates may be accepted as evidence of satisfactory operation.

2.2.43 For liquefied gas ships, see also Pt 1, Ch 3, 9 Ships for liquefied gases.

2.2.44 The Surveyor is to examine the fixed cargo securing fittings as far as necessary and practicable in order to be satisfied as to their general condition, see Pt 3, Ch 14, 10 Surveys.

2.2.45 Where the special features notation CCSA (certified container securing arrangements) is assigned, the Surveyor is to examine the securing arrangements including loose fittings so far as necessary and practicable in order to be satisfied as to their general condition, see Pt 3, Ch 14, 10 Surveys.

2.2.46 It is the responsibility of the onboard personnel to examine, maintain or renew cargo securing devices and maintain the appropriate certification. Records of inspections, maintenance and renewals, as well as the procedures for accepting, maintaining and repairing or rejecting cargo securing devices are to be kept onboard and made available to the attending Surveyor on request.

2.2.47 The Surveyor is to confirm that, for container ships which have the special features notation BoxMax, the onboard lashing program, together with its operation manual, is available on board, see Pt 3, Ch 4, 8 Loading guidance information. The operation of the program is to be verified in accordance with LR’s certification procedure.

2.2.48 For single hold general dry cargo ships, other than bulk carriers, fitted with water level detectors in the cargo hold, an examination and a test, at random, of the water ingress detection system and alarms are to be carried out.

2.2.49 For a fuel installation using gases or other low-flashpoint fuels see also Pt 1, Ch 3, 23.2 Annual Surveys

2.2.50 Where a Ballast Water Treatment System (BWTS) is installed, a general examination is to be carried out to ascertain that the BWTS is being maintained in good working order. This is to include examination and testing of safety/protective devices, the fixed fire detection and alarm system(s) and, where fitted, the gas detection and alarm system(s) and associated BWTS emergency shutdown devices. The ventilation arrangements of the space in which Ballast Water Treatment System (BWTS) is fitted are to be examined under operating conditions as far as practicable. At the time of the Annual Survey the operational and maintenance records are to be made available to the attending Surveyor to verify the satisfactory operation of the BWTS and associated safety devices/systems.

2.2.51 Where emissions abatement plant for combustion machinery is installed, the plant, supporting structure and associated systems are to be generally examined. This is to include the examination and testing of alarms, controls and safeguards and where fitted:

  • isolation, by-pass, back pressure, backflow and carryover prevention arrangements;
  • gas detection and alarm system(s);
  • ventilation arrangements of the space in which the emissions abatement plant is fitted; and
  • personal protective equipment.

Operational and maintenance records are to be made available to the attending Surveyor to verify satisfactory operation of the emissions abatement plant and associated safety devices/systems.

2.2.52 For ships assigned the class notation Hatch Covers may be omitted in Hold (No(s) ...) the associated drainage arrangements are to be examined and tested, including any additional bilge pumping arrangements.


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