Lr Foi Rules

RULES AND REGULATIONS FOR THE CLASSIFICATION OF A FLOATING OFFSHORE INSTALLATION AT A FIXED LOCATIONPART 1 APRIL 2008 REGULATIONS

RULES AND REGULATIONS FOR THE CLASSIFICATION OF A FLOATING OFFSHORE INSTALLATION AT A FIXED LOCATIONREGULATIONS APRIL 2008

PART 1

A guide to the Rulesand published requirements

Rules and Regulations for the Classification of a Floating Offshore Installation at a Fixed Location IntroductionThe Rules are published as a complete set, individual Parts are, however, available on request. A comprehensive List of Contents is placed at the beginning of each Part.

Rules updatingThe Rules are generally published regularly and changed through a system of Notices. Subscribers are forwarded copies of such Notices when the Rules change. Current changes to Rules that appeared in Notices are shown with a black rule alongside the amended paragraph on the left hand side. A solid black rule indicates amendments and a dotted black rule indicates corrigenda. A dot-dash line indicates changes necessitated by International Conventions, Code of Practice or IACS Unified Requirements.

Numbering and Cross-ReferencesA decimal notation system has been adopted throughout. Five sets of digits cover the divisions, i.e. Part, Chapter, Section, subSection and paragraph. The textual cross-referencing within the text is as follows, although the right hand digits may be added or omitted depending on the degree of precision required: (a) In same Chapter, e.g. see 2.1.3 (i.e. down to paragraph). (b) In same Part but different Chapter, e.g. see Ch 3,2.1 (i.e. down to sub-Section). (c) In another Part, e.g. see Pt 2, Ch 1,3 (i.e. down to Section). The cross-referencing for Figures and Tables is as follows: (a) In same Chapter, e.g. as shown in Fig 2.3.5 (i.e. Chapter, Section and Figure Number). (b) In same Part but different Chapter, e.g. as shown in Fig. 2.3.5 in Chapter 2. (c) In another Part, e.g. see Table 2.7.1 in Pt 3, Ch 2.

Rules programsLR has developed calculation software for floating offshore installations. For details of this software please contact LR.

Direct calculationsThe Rules require direct calculations to be submitted for specific parts of the unit structure or arrangements and these will be assessed in relation to LRs own direct calculation procedures. They may also be required for units of unusual form, proportion or speed, or for special restricted service and as supporting documentation for arrangements or scantlings alternative to those required by the Rules.

April 2008

Lloyd's Register is an exempt charity under the UK Charities Act 1993.Lloyd's Register, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as the "Lloyd's Register Group". The Lloyd's Register Group assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd's Register Group entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract. Lloyd's Register 2008. All rights reserved.

CLASSIFICATION OF FLOATING OFFSHORE INSTALLATIONS AT A FIXED LOCATIONRules and Regulations

April 2008

UPDATE NOTES1. 2. 3. 4. The April 2008 version of these Rules and Regulations incorporates those changes contained in the Notices to the May 1999 version. Changes approved by the Board and the General Committee in 2007/2008. Editorial amendments have also been incorporated. The April 2008 version of these Rules and Regulations supersedes the May 1999 version.

CLASSIFICATIONThe following explanatory note is offered to assist those concerned in the application of these Rules and Regulations. Explanatory Note Unit classification may be regarded as the development and worldwide implementation of published Rules and Regulations which, in conjunction with proper care and conduct on the part of the Owner and operator, will provide for: 1. 2. 3. the structural strength of (and where necessary the watertight integrity of) all essential parts of the hull and its appendages; the safety and reliability of the propulsion and steering systems; and the effectiveness of those other features and auxiliary systems which have been built into the unit in order to establish and maintain basic conditions on board whereby appropriate cargoes and personnel can be safely carried whilst the unit is at sea, at anchor, or moored in harbour.

Lloyd's Register (LR) maintains these provisions by way of the periodical visits by its Surveyors to the unit as defined in the Regulations in order to ascertain that the vessel currently complies with those Rules and Regulations. Should significant defects become apparent or damages be sustained between the relevant visits by the Surveyors, the Owner and operator are required to inform LR without delay. Similarly any modification which would affect Class must receive prior approval by LR. A unit is said to be in Class when the Rules and Regulations which pertain to it have, in the opinion of LR, been complied with, or when special dispensation from compliance has been granted by LR. It should be appreciated that, in general, classification Rules and Regulations do not cover such matters as the unit's floatational stability, life-saving appliances, pollution prevention arrangements, and structural fire protection, detection and extinction arrangements where these are covered by the International Convention for the Safety of Life at Sea, 1974, its Protocol of 1978, and the amendments thereto, nor do they protect personnel on board from dangers connected with their own actions or movement around the unit. This is because the handling of these aspects is the prerogative of the National Authority with which the unit is registered. A great many of these authorities, however, delegate such responsibilities to the Classification Societies who then undertake them in accordance with agreed procedures.

RULES AND REGULATIONS FOR THE CLASSIFICATION OF A FLOATING OFFSHORE INSTALLATION AT A FIXED LOCATION, April 2008.

Chapter ContentsPART 1 REGULATIONS Chapter 1 2 3 4 PART 1A General Regulations Classification Regulations Periodical Survey Regulations

Part 1

Verification in Accordance with National Regulations for Offshore Installations

GUIDELINES FOR CLASSIFICATION USING RISK ASSESSMENT TECHNIQUES TO DETERMINE PERFORMANCE STANDARDS MANUFACTURE, TESTING AND CERTIFICATION OF MATERIALS FUNCTIONAL UNIT TYPES AND SPECIAL FEATURES STEEL UNIT STRUCTURES MAIN AND AUXILIARY MACHINERY CONTROL AND ELECTRICAL ENGINEERING SAFETY SYSTEMS, HAZARDOUS AREAS AND FIRE CORROSION CONTROL CONCRETE UNIT STRUCTURES

PART PART PART PART PART PART PART PART

2 3 4 5 6 7 8 9

Lloyd's Register is an exempt charity under the UK Charities Act 1993. Lloyd's Register, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as the "Lloyd's Register Group". The Lloyd's Register Group assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd's Register Group entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract. Lloyd's Register 2008. All rights reserved. LLOYDS REGISTER

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ContentsCHAPTER 1 GENERAL REGULATIONS

Part 1

Sections

1 to 10

CHAPTER Section

2 1 1.1 1.2 1.3 1.4 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 4 4.1

CLASSIFICATION REGULATIONS Conditions for classification General Interpretation of the Rules Advisory services Legislative verification Definitions, character of classification and class notations General definitions Modes of operation Character symbols Class notations (hull/structure) Class notations (machinery) Class notations (Environmental Protection) Class notation (Verification Schemes) Descriptive notes Surveys General Statutory surveys New construction surveys Existing installations Damages, repairs and alterations Existing installations Periodical Surveys Certificates Notice of surveys Temporary suspension of class Withdrawal/suspension of class Appeal from Surveyors recommendations Conversion surveys IACS QSCS Audits Audit of surveys

Section

Section

Section

CHAPTER Section

3 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7

PERIODICAL SURVEY REGULATIONS General Frequency of surveys Surveys for damage or alterations Unscheduled surveys Surveys for the issue of Convention Certificates Definitions Planned survey programme Preparation for survey and means of access Thickness measurements at survey Repairs Annual Surveys - Hull and machinery requirements General Structure and equipment Machinery Safety and communication systems and hazardous areas Production and oil storage installations Inert gas systems Drilling plant facility

Section

2

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Contents

Part 1

Section

3 3.1 3.2 4 4.1 4.2 4.3 5 5.1 5.2 5.3 5.4 5.5 5.6 6 6.1 6.2 7 7.1 8 8.1 9 9.1 9.2 9.3 10 10.1 10.2 11 11.1 11.2 12 12.1 12.2 12.3 12.4 12.5 13 13.1 13.2 14 14.1 14.2 15 15.1 16 16.1 16.2

Intermediate Surveys - Hull and machinery requirements General Intermediate Surveys Docking Surveys and In-water Surveys - Hull and machinery requirements General Docking Surveys In-water Surveys Special Survey - Hull requirements General Preparation Examination and testing Thickness measurement Thickness measurement reporting Positional mooring systems Machinery surveys - General requirements Annual, Intermediate, Docking and In-water Surveys Complete Surveys Turbines - Detailed requirements Complete Surveys Oil engines - Detailed requirements Complete Surveys Electrical equipment Annual and Intermediate Surveys Complete Surveys Docking Surveys and In-water Surveys Boilers Frequency of surveys Scope of surveys Steam pipes Frequency of surveys Scope of surveys Screwshafts, tube shafts and propellers Frequency of surveys Normal surveys Complete surveys Screwshaft Condition Monitoring (SCM) Special cases Drilling plant facility Frequency of surveys Scope of surveys Process plant facility Frequency of surveys Scope of surveys Riser systems Surveys - General Safety and communication systems and hazardous areas Frequency of surveys Scope of surveys

Section

Section

Section

Section

Section

Section

Section

Section

Section

Section

Section

Section

Section

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ContentsSection 17 17.1 17.2 18 18.1 18.2 19 19.1 19.2 19.3 20 20.1 Pressure vessels for process and drilling plant Frequency of surveys Scope of surveys Inert gas systems Frequency of surveys Scope of surveys Classification of units not built under survey General Hull and equipment Machinery Laid-up machinery Survey requirements

Part 1

Section

Section

Section

CHAPTER Section

4 1 1.1 1.2 1.3 2 2.1 3 3.1 4 4.1

VERIFICATION IN ACCORDANCE WITH NATIONAL REGULATIONS FOR OFFSHORE INSTALLATIONS Conditions for verification General requirements Existing units Recognised codes and standards Documentation Certificates Descriptive note General Survey requirements General

Section

Section

Section

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LLOYDS REGISTER

RULES AND REGULATIONS FOR THE CLASSIFICATION OF A FLOATING OFFSHORE INSTALLATION AT A FIXED LOCATION, April 2008

General Regulations

Part 1, Chapter 1Sections 1 & 2

Section 1

1.1 Lloyds Register (hereinafter referred to as LR), which is recognized under the laws of the United Kingdom as a Corporation whose business is conducted for the benefit of the community, was founded in 1760. It was established for the purpose of obtaining for the use of Merchants, Shipowners and Underwriters a faithful and accurate Classification of Merchant Shipping and whilst it still continues to fulfil that purpose, it now also: (a) approves design, surveys and reports on: hovercraft; ships which embody features of a novel kind; non-mercantile shipping; yachts; amphibious and land and sea and sea bed installations, structures, plant, etc.; machinery, apparatus, materials, components, equipment, production methods and processes of all kinds; for the purpose of testing their compliance with plans, specifications, Rules, Codes of Practice, etc., or their fitness for particular requirements; (b) acts with delegated authority on behalf of numerous governments in respect of Statutory Requirements; (c) provides other technical inspection and advisory services relating to ships and the maritime industry generally and also in respect of land and sea-based undertakings.

Section 2

2.1 LRs affairs are under the overall direction of the General Committee, which is composed of persons nominated or elected to represent the world community and industry which LR serves. The General Committee (hereinafter referred to as the Committee), which may at its discretion vary the constitution of such representation, is currently composed of: The Corporation of Lloyds (five representatives). The International Underwriting Association (two representatives). The Chamber of Shipping (five representatives). The International Maritime Industries Forum (one representative). The Greek Shipping Co-operation Committee (one representative). Intercargo (one representative). Institute of Quality Assurance (one representative). Intertanko (one representative). The International Group of P&I Clubs (one representative).

Nominated members of the Committee are elected for a term of service of three years and are eligible for re-election, subject to the membership age limit and unbroken membership of the nominating body they represent during their period of membership. Six members representing P&I Clubs elected by the Committee for a term of service of one year. P&I Club representatives are eligible for re-election, subject to the membership age limit. Such persons specially elected by the Committee for a term of service of one year. Specially Elected Members are eligible for re-election, subject to the membership age limit. The number of Specially Elected Members shall be limited not to exceed the balance of the maximum Committee membership of 85 persons. A specially elected member will automatically relinquish his/her membership in this category on being elected as a nominated member of the Committee.

2.2 The Committee is further empowered to elect as Honorary Members of the Committee such persons of distinction and eminence as the Committee shall from time to time think fit. 2.3 With the exception of honorary members, any member of the Committee shall automatically retire from the Committee on reaching the age of seventy years, unless special approval for an additional term of service is recommended by the Committees Nominations Committee and approved by the Committee each year thereafter.

LLOYDS REGISTER

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General Regulations3.1

Part 1, Chapter 1Sections 3, 4 & 5

Section 3The Committee has power to: Appoint a Board and delegate thereto such of its powers as it may determine; Appoint a General Committee Nominations Committee and determine its powers; Appoint a Sub-Committee of Classification and determine its powers and functions; Appoint Committees in any country or area to form a liaison between LR and the local maritime, industrial and commercial communities; Appoint Technical Committees and determine their functions, powers and duties. The Committee has exercised its powers and has appointed such committees and Board.

3.2

4.1

Section 4National and Area Committees are established in the following: Countries: Areas: Australia (via Lloyds Register Asia) Benelux (via Lloyds Register EMEA) Canada (via Lloyds Register North America, Inc.) Central America (via Lloyds Register Central and China (via Lloyds Register Asia) South America Ltd) Egypt (via Lloyds Register EMEA) Nordic Countries (via Lloyds Register EMEA) Federal Republic of Germany (via Lloyds Register EMEA) South Asia (via Lloyds Register Asia) France (via Lloyds Register EMEA) Asian Shipowners (via Lloyds Register Asia) Greece (via Lloyds Register EMEA) Italy (via Lloyds Register EMEA) Japan (via Lloyds Register Asia) New Zealand (via Lloyds Register Asia) Poland (via Lloyds Register (Polska) Sp zoo) Spain (via Lloyds Register EMEA) United States of America (via Lloyds Register North America, Inc.)

Section 5

5.1 The main Technical Committee is at present composed of: Ex officio: TOTAL The Chairman of LR ................................................... 1 The Chairman of the Sub-Committee of Classification ................................................................................. 1 Nominated by: The Committee ........................................................... 18 The Royal Institution of Naval Architects ......................... 2 The Institution of Engineers and Shipbuilders in Scotland ........................ 2 The Institute of Marine Engineering, Science and Technology...... 2 The Institution of Mechanical Engineers ....................................................................................................... 2 The Shipbuilders and Shiprepairers Association ......... 2 The Short Sea Group of the Chamber of Shipping ........................................................................................ 1 The Society of Consulting Marine Engineers and Ship Surveyors ............. 1 The Institute of Materials ......................... 1 The UK Steel Association .................................................... 1 The Honourable Company of Master Mariners .......... 2 The Institution of Electrical Engineers .......... 1 Federation of British Electrotechnical and Allied Manufacturers Associations ......... 1 The Technical Committee ......... 18 The Technical Committee (from other countries) ........ 18 The Institute of Refrigeration ......... 1 International Oil Companies .......... 2 Association of European Shipbuilders and Shiprepairers ........................... 1 Greek Shipping Co-operation Committee ......... 179 2LLOYDS REGISTER


General Regulations5.2All nominations are subject to confirmation by the Committee.


5.3 In addition to the foregoing: (a) Each National or Area Committee may appoint a representative to attend meetings of the Technical Committee. (b) A maximum of five representatives from National Administrations may, with the consent of the Committee, be co-opted to serve on the Technical Committee. Such representatives may also be elected as members of the Technical Committee under one of the categories identified in 5.1. (c) Further persons may, with the consent of the Committee, be co-opted to serve on the Technical Committee. 5.4 The function of the Technical Committee is to consider any technical problems connected with LRs business (see 1.1(a)) and with the exception of changes necessitated by mandatory implementation of International Conventions, Codes or Unified Requirements adopted by the International Association of Classification Societies, any proposed alterations in the existing Rules and to frame new Rules for classification as deemed necessary. 5.5 The term of office of the Chairman and of all members of the Technical Committee is five years. Members may serve one additional term of office with the approval of the Committee. 5.6In the case of continuous non-attendance of a member, the Committee may withdraw his/her membership.

5.7 Meetings of the Technical Committee are convened as often and at such times and places as is necessary, but there is to be at least one meeting in each year. 5.8 Any proposal of the Technical Committee involving any alteration in, or addition to, Rules for classification is referred to the Committee and may be finally approved at the next meeting of the Board if the General Committee so direct. 5.9 The Technical Committee is empowered to: (a) appoint sub-Committees or panels of the Committee; and (b) co-opt to the Technical Committee, or to its sub-Committees or panels, representatives of any organization or industry or private individuals for the purpose of considering any particular problem.

Section 6

6.1 The Naval Ship Technical Committee (hereinafter referred to as NSTC) is at present composed of not more than 50 members to include nominees of: The Royal Navy and the UK Ministry of Defence; The Defence Evaluation and Research Agency; UK Shipbuilders, Ship Repairers and Defence Industry; Overseas Governments and Governmental Agencies; Overseas Shipbuilders, Ship Repairers and Defence Industries; Various maritime bodies and institutions, nominated by the NSTC; The Chairman and Chairman of the Sub-Committee of Classification who are ex officio members.

6.2

All nominations are subject to confirmation by the Committee.

6.3 All members of the NSTC are to hold security clearance from their National Authority for the equivalent of NATO CONFIDENTIAL. All material is to be handled in accordance with NATO Regulations or, for non-NATO countries, an approved equivalent. No classified material shall be disclosed to any third party without the consent of the originator. 6.4 The term of office of the NSTC Chairman and of all members of the NSTC is five years. Members may serve one additional term of office with the approval of the Committee. The term of the Chairman may be extended with the approval of the General Committee. 6.5In the case of continuous non-attendance of a member, the Committee may withdraw that persons membership.

6.6 The function of the NSTC is to consider technical issues connected with Naval Ship matters and to approve proposals for new Naval Ship Rules, or amendments to existing Naval Ship Rules. 6.7Meetings of the NSTC shall be convened as necessary but there shall be at least one meeting per year.

6.8 Following approval by the NSTC, details of new Rules (or amendments) will be submitted to the Committee for adoption.LLOYDS REGISTER

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General Regulations

Part 1, Chapter 1Sections 7, 8, & 9

Section 7

7.1 The Committee has power to adopt, and publish as deemed necessary, Rules relating to classification and has (in relation thereto) provided the following: (a) Except in the case of a special directive by the Committee, no new Regulation or alteration to any existing Regulation relating to character of classification or to class notations is to be applied to existing ships. (b) Except in the case of a special directive by the Committee, or where changes necessitated by mandatory implementation of International Conventions, Codes or Unified Requirements adopted by the International Association of Classification Societies are concerned, no new Rule or alteration in any existing Rule is to be applied compulsorily after the date on which the contract between the ship builder and ship owner for construction of the ship has been signed, nor within six months of its adoption. The date of contract for construction of a ship is the date on which the contract to build the ship is signed between the prospective ship owner and the ship builder. This date and the construction number (i.e hull numbers) of all the vessels included in the contract are to be declared to the Committee by the party applying for the assignment of class to a newbuilding. The date of contract for construction of a series of sister ships, including specified optional ships for which the option is ultimately exercised, is the date on which the contract to build the series is signed between the prospective ship owner and the ship builder. In this section a series of sister ships is a series of ships built to the same approved plans for classification purposes, under a single contract for construction. The optional ships will be considered part of the same series of sister ships if the option is exercised not later than 1 year after the contract to build the series was signed. If a contract for construction is later amended to include additional ships or additional options, the date of contract for construction for such ships is the date on which the amendment to the contract is signed between the prospective ship owner and the ship builder. The amendment to the contract is to be considered as a new contract. If a contract for construction is amended to change the ship type, the date of contract for construction of this modified vessel, or vessels, is the date on which the revised contract or new contract is signed between the Owner, or Owners, and the shipbuilder. Where it is desired to use existing approved ship or machinery plans for a new contract, written application is to be made to the Committee. NOTE Sister ships may have minor design alterations provided that such alterations do not affect matters related to classification. (c) All reports of survey are to be made by Surveyors authorised by LR to survey and report (hereinafter referred as the Surveyors) according to the form prescribed, and submitted for the consideration of the Committee, or its Sub-Committee of Classification, but the character assigned by the latter is to be subject to confirmation by the Committee or by the Chairman acting on behalf of the Committee. (d) Information contained in the reports of classification and statutory surveys will be made available to the relevant owner, National Administration, Port State Administration, P&I Club, hull underwriter and, if authorized in writing by that owner, to any other person or organization. (e) Information relating to the status of classification and statutory surveys and suspensions/withdrawals of class together with any associated conditions of class will be made available as required by applicable legislation or court order. (f) Notwithstanding the general duty of confidentiality owed by LR to its clients, LR will participate fully in the IACS Early Warning System which requires each IACS member to provide its fellow IACS members with information on serious hull structural and engineering systems failures, including the name of the ship and its IMO number, to enable such useful information to be shared and utilised to facilitate the proper working of the IACS Early Warning System (which is aimed at enabling (i) sister or similar ships to avoid similar problems and (ii) the shipping industry generally to learn from failures and mistakes). (g) A Classification Executive consisting of senior members of LRs Classification Department staff shall carry out whatever duties that may be within the function of the Sub-Committee of Classification that the Sub-Committee of Classification assigns to it.

Section 8

8.1 No Lloyds Register Group employee is permitted under any circumstances, to accept, directly or indirectly, from any person, firm or company, with whom the work of the employee brings the employee into contact, any present, bonus, entertainment or honorarium of any sort whatsoever which is of more than nominal value or which might be construed to exceed customary courtesy extended in accordance with accepted ethical business standards.

Section 9

9.1 The Committee has power to: (a) determine the amounts to be charged for the services provided by LR or for any of its publications; (b) withhold or, if already granted, to suspend or withdraw any class (or to withhold any certificate or report in any other case), in the event of non-payment of any fee.

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General Regulations

Part 1, Chapter 1Section 10

Section 10

10.1 In this section: (i) Services means the services provided by LR; and (ii) Contract means the contract for supply of the Services; and (iii) the LR Group includes LR, its affiliates and subsidiaries, and the officers, directors, employees, representatives and agents of any of them, individually or collectively. 10.2 LRs services do not assess compliance with any standard other than the applicable LR Rules, international conventions, and other standards agreed in writing by LR and the Client. 10.3 In providing Services, information or advice, the LR Group does not warrant the accuracy of any information or advice supplied. Except as set out herein, the LR Group will not be liable for any loss, damage or expense sustained by any person and caused by any act, omission, error, negligence or strict liability of any of the LR Group or caused by any inaccuracy in any information or advice given in any way by or on behalf of the LR Group even if held to amount to a breach of warranty. Nevertheless, if the Client uses LR's Services or relies on any information or advice given by or on behalf of the LR Group and as a result suffers loss, damage or expense that is proved to have been caused by any negligent act, omission or error of the LR Group or any negligent inaccuracy in information or advice given by or on behalf of the LR Group, then LR will pay compensation to the Client for its proved loss up to but not exceeding the amount of the fee (if any) charged for that particular service, information or advice. 10.4 Notwithstanding the previous clause, the LR Group will not be liable for any loss of profit, loss of contract, loss of user or any indirect or consequential loss, damage or expense sustained by any person caused by any act, omission or error or caused by any inaccuracy in any information or advice given in any way by or on behalf of the LR Group even if held to amount to a breach of warranty. 10.5 LRs omission or failure to carry out or observe any stipulation, condition, or obligation to be performed under the Contract will not give rise to any claim against LR or be deemed to be a breach of contract if the failure or omission arises from causes beyond LRs reasonable control. 10.6 Any dispute about the Services or the Contract is subject to the exclusive jurisdiction of the English courts and will be governed by English law.

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Classification RegulationsSection1 2 Conditions for classification Definitions, character of classification and class notations Surveys General IACS QSCS Audits


1.1.4 Installations designed and constructed to standards other than the Rule requirements will be considered for classification subject to the alternative standards being considered by LR to give an equivalent level of safety to the Rule requirements. It is essential that in such cases LR is informed of the Owners proposals at an early stage in order that a basis for acceptance of the standards may be agreed. 1.1.5 As an option, the Owner may request LR to consider performance standards determined by risk assessment as the basis for design, construction, and inspection/maintenance. Guidelines for classification of an offshore installation using risk assessment to determine performance standards are provided in Part 1A. Definitions of risk assessment terms are also given in Part 1A. Performance standards determined by risk assessment may be accepted by LR as the alternative basis for classification, provided that: LR approval is obtained at all key stages detailed in Part 1A; and LR verifies that all elements which are critical to the safety and integrity of the installation meet their required performance standards, as outlined in Part 1A. Where a Formal Safety Assessment or Safety Case is prepared as a requirement of a National Administration or of the Owner, the Owner may request LR to consider the results as a basis for determining the performance standards to be used for classification. In such cases, the Formal Safety Assessment or Safety Case will be reviewed by LR to confirm that it considers all hazards to the safety and integrity of the installation which are relevant to classification. The Guidelines in Part 1A will then apply. 1.1.6 The Committee, in addition to requiring compliance with LRs Rules, or other agreed performance standards, may require to be satisfied that units are suitable for geographical or other limits or conditions of the service contemplated. 1.1.7 Although the specified design environmental criteria on which classification is based is the responsibility of the Owner, assessment of an installations suitability for service at a particular offshore location will be undertaken and agreed by LR. 1.1.8 Loading conditions and any other preparations required to permit a unit (whether self-propelled or not) with a class notation specifying some service limitation to undertake a sea-going voyage, either from port of building to an offshore location or from one location to another, are to be in accordance with arrangements agreed by LR prior to the voyage. 1.1.9 Any damage, defect, breakdown or grounding, which could invalidate the conditions for which class has been assigned, is to be reported to LR without delay. 1.1.10 The Owner is solely responsible for the operation of the unit. The Rules are framed on the understanding that the unit will be properly loaded and operated, and the environmental conditions are no more severe than those agreed for the design basis and approval, without prior agreement of LR.

3 4

1.1

Section 1 Conditions for classificationGeneral

1.1.1 Steel units referred to in this Chapter are defined in Parts 3, 4 and 8. Machinery referred to in this Chapter is defined in Parts 5 and 6. Safety systems, hazardous areas, and fire safety referred to in this Chapter are defined in Part 7. Drilling and process plant referred to in this Chapter are defined in Pt 3, Ch 7 and Ch 8. Concrete units referred to in this Chapter are defined in Part 9. Materials referred to in this Chapter are defined in Part 2. 1.1.2 A floating offshore installation operating at a fixed geographic location and built in accordance with Lloyds Registers (hereinafter referred to as LR) Rules and Regulations or in accordance with requirements equivalent thereto, will be assigned a class on the ClassDirect Live website and will continue to be classed so long as they are found, upon examination at the prescribed surveys, to be maintained in accordance with the requirements of the Rules. Classification will be conditional upon compliance with LRs requirements for materials, structure, machinery, equipment and other safety considerations. 1.1.3 The basic LR class notation for the installation would normally include: Description of the installation, facilities provided and field location. Structure and marine systems. Positional mooring system. Propulsion (where applicable) Process facilities are not required to be classed, however, an optional class notation PPF (process plant facility) can be assigned at the request of the owner (see 2.4.9). Detailed design, procurement, construction, site integration and commissioning activities regarding topsides facilities are typically subjected to certification by LR to recognised national and international codes, or equivalent engineering standards. Alternatively, the topsides could be subject to verification to an agreed written scheme. These facilities will be installed on a vessel with a LR classed hull, marine systems and mooring system. Certification or verification of the topsides facilities is the minimum requirement for assignment of an LR class notation for a complete floating offshore installation. Other optional class notations are also given in Section 2.LLOYDS REGISTER

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Classification Regulations1.1.11 When longitudinal strength calculations are required for ship units, loading guidance information is to be supplied to the Master by means of a Loading Manual and in addition, when required, by means of a loading instrument (see also 1.1.12). Loading Manuals and loading instruments for ship-type units are to be in accordance with Pt 3, Ch 4,8 of LRs Rules and Regulations for the Classification of Ships (hereinafter referred to as the Rules for Ships). 1.1.12 It will be the responsibility of the Owner to provide instructions and set down limits for the operation of the unit to ensure that the loading and environmental conditions on which classification is based will not be exceeded. These instructions and limitations are to be contained in an Operations Manual and a Loading Manual for ship units. The Owner should ensure that the Manuals are kept up to date and contains appropriate data required by the relevant National Administration. 1.1.13 For units, the arrangements and equipment of which are required to comply with the requirements of the: IMO Code for the Construction and Equipment of Mobile Offshore Drilling Units, 2001 (2001 MODU Code), Load Lines convention, International Convention for the Safety of Life at Sea, 1974 and its Protocol of 1978, International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto, and applicable Amendments thereto, the Committee requires the applicable Convention Certificates to be issued by a National Administration, or by LR, or by an IACS Member when so authorized. Safety Management Certificates in accordance with the provisions of the International Safety Management Code (ISM Code) may be issued by an organization complying with IMO Resolution A.739(18) and authorized by the National Administration with which the unit is registered. Cargo Ship Radio Certificates may be issued by an organization authorized by the National Administration with which the unit is registered. In the case of dual classed units, Convention Certificates may be issued by the other Society with which the unit is classed provided this is recognized in a formal Dual Class Agreement with LR and provided the other Society is also authorized by the National Administration. In the event of a National Administration withdrawing any units Convention Certificate (referred to in this Section) then the committee may suspend the units class. However if a unit is removed from the National Administrations Registry then the committee will suspend the units class. In the event of ISM Code certification being withdrawn from a unit or Operator then the Committee will suspend the units class. 1.1.14 For units which are outside the scope of application of the 2001 MODU Code and/or the international Conventions referred to in 1.1.13 above, then compliance with any prescribed standards of the applicable Coastal State Authority is to be demonstrated by the issue of appropriate certification by that Coastal State Authority or LR where so authorized. 1.1.15 Where National Administrations have no prescribed standards for units which are outside of the scope of2

Part 1, Chapter 2Section 1 application of the 2001 MODU Code and/or the International Conventions referred to in 1.1.13 or their standards are not considered acceptable for classification purposes then LR will apply the relevant parts of the 2001 MODU Code/International Convention Regulations and other recognized standards as applicable to the intended use of the unit as a prerequisite to classification.

1.1.16 Where an on-board computer system having longitudinal strength computation capability, which is required by the Rules, is provided on a new unit or newly installed on an existing unit, then the system is to be certified in respect of longitudinal strength in accordance with LRs Approval of Longitudinal Strength and Stability Calculation Programs. 1.1.17 Where an onboard computer system having stability computation capability is provided on a new unit, then the system is to be certified in respect of stability aspects in accordance with LR's document entitled, Approval of Longitudinal Strength and Stability Calculation Programs . When provided, an onboard computer system having stability computation capability is to carry out the calculations and checks necessary to assess compliance with all the stability requirements applicable to the unit on which it is installed. 1.1.18 Self-elevating units as defined in Section 2 will normally be assigned class in accordance with LRs Rules and Regulations for the Classification of Mobile Offshore Units (hereinafter referred to as the Rules for Mobile Offshore Units), but when the unit is intended to operate permanently at a fixed location for its service life class may be assigned in accordance with these Rules. 1.1.19 When a unit fitted with a conventional rudder is to operate at a fixed location, it is the Owners responsibility to ensure that suitable arrangements are provided to prevent damage to the steering gear and propelling machinery. Special consideration will be given by LR to the requirements for the steering gear and propelling machinery, see Pt 4, Ch 11 and Pt 5, Ch 18 and Ch 5. 1.1.20 Steel units referred to in this Chapter are defined in Parts 3, 4 and 8. 1.1.21 Machinery referred to in this Chapter is defined in Parts 5, 6 and 7. 1.1.22 Drilling and process plants referred to in this Chapter are defined in Pt 3, Ch 7 and Ch 8. 1.1.23 Concrete units referred to in this Chapter are defined in Part 9.1.1.24 Part 2.Materials referred to in this Chapter are defined in

1.2

Interpretation of the Rules

1.2.1 The interpretation of the Rules is the sole responsibility, and is at the sole discretion, of LR. Any uncertainty in the meaning of the Rules is to be referred to LR for clarification.LLOYDS REGISTER


Classification Regulations1.2.2 In many instances these rules require that particular components, systems and equipment etc. must also comply with applicable sections of the Rules for Ships. Every effort has been made to avoid potential conflicting requirements, however, where such a conflict becomes apparent the requirements of these Rules shall take precedence.

Part 1, Chapter 2Sections 1 & 2 offshore unit, e.g. buoy or mooring tower, classification of the floating offshore installation will normally be subject to the buoy or mooring tower being classed separately by LR unless agreed otherwise by the Committee, see also Pt 3 and Pt 4, Ch 4 and 5.

1.3

Advisory services

2.1.3 Coastal State Authority is the Authority responsible for the safety standards of units operating in or adjacent to their territorial waters. 2.1.4 National Authority is the Marine Authority in the country in which a unit is registered. 2.1.5 National Administrations are those Authorities defined in 2.1.3 and 2.1.4. 2.1.6 Owner. In the context of these Rules, the Owner is defined as the party responsible for the installation including its operation and safety. 2.1.7 Self-propelled means that the unit is designed for unassisted sea passages and is fitted with propelling machinery in accordance with LR Rules. 2.1.8 Ship units are units with a ship or barge hull form of single or multiple hull construction built for operation afloat. Such units may be self propelled or be built without primary propelling machinery. 2.1.9 Self-elevating units are floating units which are designed to operate as sea bed-stabilized units in an elevated mode. These units have a buoyant hull with movable legs capable of raising its hull above the surface of the sea. The legs may be designed to penetrate the sea bed, or be attached to a mat or individual footings which rest on the sea bed. See 1.1.18. 2.1.10 Semi-submersible or column-stabilized units have working platforms supported on widely spaced buoyant columns. The columns are normally attached to buoyant lower hulls or pontoons. These units are normally floating types but can be designed to rest on the sea bed, see also 2.2.3. 2.1.11 Tension-leg units are offshore units which are linked to a fixed foundation by means of tensioned mooring tethers or other parallel, near vertical, connections in such a manner that the unit is constrained to float at a draught greater than that consistent to its displacement when floating freely. 2.1.12 Deep draught caisson units are single column floating units which operate at a deep draught in relation to their overall depth. 2.1.13 Buoy units are floating units used as a mooring facility for a ship or an offshore unit and are secured by a flexible tether or tethers to the sea bed. 2.1.14 A disconnectable unit is a self-propelled floating unit which normally operates at a fixed location but is designed to disconnect from its moorings in order to avoid hazards or extreme storm conditions.

1.3.1 The Rules do not cover certain technical characteristics, such as stability, trim, hull vibration, etc., but the Committee is willing to advise on such matters although it cannot assume responsibility for them. 1.3.2 Where a unit is so badly damaged that class has to be suspended, LR is prepared to assist the Owner with advice if requested.

1.4

Legislative verification

1.4.1 LR has been authorized by a number of National Administrations to carry out verification of offshore units and installations in accordance with statutory Regulations. Full details will be supplied to Owners and other interested parties on request. (See also 2.7 and 2.8.3). 1.4.2 LR has also been authorized on behalf of governments of a large number of nations to issue certain statutory, safety and other certificates. LR is willing to act, when requested, in respect of such certification.1.4.3 Where machinery and equipment are to comply with EC Directives, LR as a notified body can issue EC Type Certification. Full details will be supplied to manufacturers and other interested parties on request.

Section 2 Definitions, character of classification and class notationsGeneral definitions

2.1

NOTE For the purpose of class notations, the definitions given in 2.1.1 to 2.1.20 will apply.

2.1.1 Offshore unit means a unit engaged in offshore operations including drilling, oil/gas production and storage, accommodation and other support functions and which generally operate within the territorial waters of a Coastal State Authority but excluding the ship types defined in Part 4 of the Rules for Ships. 2.1.2 Floating Offshore Installations. From the classification aspects means a floating offshore unit and its integral associated offshore mooring facility as defined in Pt 3, Ch 2.1. When the mooring facility is independent of theLLOYDS REGISTER

3


Classification Regulations2.1.15 Other definitions for mooring facilities are contained in Pt 3, Ch 2 and Ch 10. 2.1.16 Support units are units whose primary function is to support other offshore installations engaged in petroleum activities. 2.1.17 Accommodation units are support units whose primary function is to provide accommodation for more than twelve offshore personnel who are not crew members. 2.1.18 Clear water. Water having sufficient depth to permit the normal development of wind generated waves. 2.1.19 Fetch. The extent of clear water across which a wind has blown before reaching the unit. 2.1.20 Sheltered water. Water where the fetch is six nautical miles or less. 2.1.21 Reasonable weather. Wind strengths of force six or less in the Beaufort scale, associated with sea states sufficiently moderate to ensure that green water is taken on board the units weather deck at infrequent intervals only or not at all.OI 2.3 Character symbols


2.3.1 All installations, when classed, will be assigned one or more character symbols as applicable. For the majority of installations the character assigned will be |OI 100AT or |OI 100AT (1). 2.3.2 A full list of character symbols for which offshore units may be eligible is as follows:

|

This distinguishing mark will be assigned, at the time of classing, to new units constructed under LRs Special Survey, in compliance with the Rules, and to the satisfaction of the Committee. This distinguishing mark will be assigned, at the time of classing, to new units constructed under LRs Special Survey, in accordance with plans approved by another recognized classification society. These character letters will be assigned to all offshore installations built in accordance with LRs Rules and Regulations for the Classification of Floating Offshore Installation at a Fixed Location This character figure will be assigned to all installations considered suitable for operating at exposed locations offshore or for seagoing conditions. This character letter will be assigned to all installations, which have been built or accepted into class in accordance with LRs Rules and Regulations, and which are maintained in good and efficient condition. This character letter will be assigned to all offshore installations which have, in good and efficient condition, anchoring, mooring or linking equipment in accordance with the Rules, see Pt 3, Ch 10. This character figure will be assigned to: (a) Disconnectable units having on board, in good and efficient condition, anchoring and/or mooring equipment in accordance with Pt 4, Ch 10 of the Rules. (b) Installations classed for a special service, having on board, in good and efficient condition, anchoring and/or mooring equipment approved by the Committee as suitable and sufficient for the particular service. (c) Disconnectable units equipped with a classed dynamic positioning system which has sufficient power, redundancy of components and duplication of controls, to supplement or replace the anchoring equipment on board such that the combined system/equipment is approved by the Committee as equivalent to the anchoring equipment necessary during voyages, transfer moves or under normal operating conditions, see Pt 3, Ch 9. This character letter will be assigned to installations on which the Commitee has agreed that anchoring and mooring equipment need not be fitted in view of their particular service.LLOYDS REGISTER

100 2.2 Modes of operation A

2.2.1 A mode of operation is a condition or manner in which a unit may operate or function while on location or in transit, see also 2.4.8. From the classification aspects the modes of operation of all unit types excluding ship units shall include the following: (a) Operating condition A condition when a unit is on location, for the purpose of carrying out its primary design operations, and the combined environmental and operational loadings are within the appropriate design limits established for such operations. The unit may be either afloat or supported on the sea bed, as applicable. (b) Survival condition A severe storm condition during which a unit may be subjected to the most severe environmental loadings for which the unit is designed. Production, drilling or similar operations may have been discontinued due to the severity of the environmental loadings. The unit may be either afloat or supported on the sea bed, as applicable. (c) Transit condition All unit movements from one geographical location to another. NOTE For ship units the mode of operation will be defined by the loading conditions stated in the approved loading manual. 2.2.2 Linked means connected while operating at a single point mooring facility, fixed structure or otherwise attached or resting on the sea bed. 2.2.3 Sea bed-stabilized means designed to operate under normal operating and survival conditions while the footings, mat or pontoons rest on the sea bed.

T

(1)

N

4


Classification Regulations2.3.3 Non-propelled units which are required to make transit voyages from one operating site to another are to be fitted with towing arrangements in accordance with Pt 4, Ch 10. 2.3.4 Self-propelled units which are required by the Owners to make transit voyages from one operating location to another or are disconnectable to avoid severe storms or hazards are to comply with the requirements of 2.3.2 for the assignment of the character figure (1) which will be assigned after the character letter T. 2.3.5 In cases where the anchoring and/or mooring equipment is found to be seriously deficient in quality or quantity, the class of the unit will be liable to be withheld. 2.3.6 The character figure 100 will be omitted for units operating in protected waters such as harbours, inland lakes, etc., and the requirements of the Rules may be relaxed or otherwise amended as considered appropriate by the Committee. 2.3.7 Units will not be classed unless the primary propelling machinery and/or the essential auxiliary machinery of the unit is also classed. 2.3.8 LR classed tankers being converted for service as a floating offshore installation in accordance with the requirements of these rules will be eligible for an offshore installation class notation, see also 2.4 to 2.8 below. Special consideration will be given to the class notation assigned when the tanker to be converted is not classed with LR, see also Pt 4, Ch 4.


2.4.5 Specified operating area. A notation indicating that the unit has been classed on the understanding that it will be operated only in suitable areas which have been agreed by the Committee, e.g. North Sea service (Abbot Field). 2.4.6 Operating limits notation. A notation indicating the significant design criteria on which structural approval of the installation is based, for example: Maximum operating environmental design limits for ship units, semi-submersible units and self-elevating units. Maximum ship dimensions and displacements which may be assigned to a single point mooring facility. Maximum hawser load. Limiting sea state and/or wind speed during which a vessel may remain moored to a single point mooring. 2.4.7 A typical example of character of classification and class notations is |OI 100 AT Floating production and oil storage installations, PPF, North Sea service (Abbot field). 2.4.8 The assigned character symbols of class and the appropriate class notations will be entered in the ClassDirect Live website. For all unit types except ship units, the limiting structural design criteria on which classification is based will also be entered on the ClassDirect Live website. 2.4.9 The following special features class notations are optional and may be assigned as considered appropriate by the Committee:PPF This notation will be assigned to units which have specialized structures and an installed process plant facility which has been constructed, installed and tested under LRs Special Survey and in accordance with LRs Rules and Regulations. See Pt 3, Ch 8. This notation will be assigned to units which have specialized structures and an installed drilling plant facility which has been constructed, installed and tested under LRs Special Survey and in accordance with LRs Rules and Regulations. See Pt 3, Ch 7. This notation will be assigned to units which have a product riser system which has been constructed, installed and tested under LRs Special Survey, in accordance with LRs Rules. See Pt 3, Ch 5. This notation for In-water Survey may be assigned to an offshore unit where the applicable requirements of LRs Rules and Regulations are complied with. See Pt 1, Ch 3,4.3, Pt 3, Ch 1,2.1.2 and Pt 8, Ch 1,1.3.

2.4

Class notations (hull/structure)

2.4.1 When considered necessary by the Committee, or when requested by an Owner and agreed by the Committee, a class notation will be appended to the character of classification assigned to the unit. This class notation will consist of one of, or a combination of the following: A type notation. A special duties notation. A special features notation. A specified operating area. An operating limits notation. 2.4.2 Type notation. A notation indicating that the unit has been arranged and constructed in compliance with particular Rules intended to apply to that type of unit, e.g. Floating Production Installation. Typical type notations are defined in Part 3. 2.4.3 Special duties notation. A notation indicating that the unit has been designed, modified or arranged for special duties other than those implied by the type notation, e.g. Well intervention. Units with special duties notations are not thereby prevented from performing any other duties for which they may be suitable. 2.4.4 Special features notation. A notation indicating that the unit incorporates special features which significantly affect the design, e.g. PPF, see 2.4.9.LLOYDS REGISTER

DRILL

PRS

OIWS

2.4.10 The application of the OIWS notation to existing units will be subject to special consideration by the Committee. 2.4.11 LI. This notation will be assigned where an approved loading instrument has been installed as a classification requirement.5


Classification Regulations2.4.12 Details of unit types and additional special features class notations for which special Rules apply are also incorporated in Part 3, see also 2.8. 2.4.13 The following class notations may be assigned to ship units as considered appropriate by the Committee:(a) S hipRight-FOI SDA. This notation can be assigned to both new build ship units and tanker conversions when structural strength of the hull has been assessed for environmental loads assuming unrestricted service as a ship. The structural strength of the hull is to be verified using the finite element method. S hipRight-FOI RBA(S). The response based analysis (structure) class notation will be assigned to both new build ship units and tanker conversions when structural strength has been verified by performing direct calculations (finite element analysis) for hull structure in accordance with the LR ShipRight procedure for floating offshore installations (FOI). ShipRight-FOI FDA (years). The fatigue design assessment (design life) class notation will be assigned to both new build ship units and tanker conversions when fatigue life of critical connection details has been assessed in accordance with the LR ShipRight procedure for floating offshore installations (FOI). S hipRight-FOI CM. The construction monitoring class notation will be assigned to new build ship units and tanker conversions when agreed enhanced inspection measures have been implemented and verified during construction to ensure that at critical locations the connection details are within the agreed tolerances. Critical locations are to be agreed with LR on a case by case basis. A plan showing critical locations is to be submitted for approval, in accordance with the LR ShipRight procedure for floating offshore installations (FOI). CSR. This notation indicates that the structure has been verified as fully compliant with IACS CSR. This notation cannot be assigned retrospectively. It may only be assigned to new build units or units which already had a CSR notation assigned before conversion or redeployment.RBA (S) FDA (years) CM SDA ShipRight (FOI) Notation Redeployment and Conversion

Part 1, Chapter 2Section 2New Build

Moderate Harsh Moderate Harsh environment Environment environment Environment Optional Mandatory Mandatory Optional Mandatory Mandatory Mandatory N/A Optional Mandatory Mandatory Mandatory Mandatory Mandatory Mandatory N/A

Table 2.4.1 Application of ShipRight (FOI) Notations

(b)

2.4.14 The ShipRight SDA notation may be retained by LR Classed tankers after conversion to an FOI for service in a moderate environment as defined in Pt 4, Ch 4.1 2.4.15 Special consideration will be given to assignment of additional notations given in Pt 1, Ch 2 of the Rules for Ships at the request of the owner. The assignment of such notations will be conditional on compliance with all applicable requirements relevant to the unit type and service.

(c)

2.5

Class notations (machinery)

2.5.1 The following class notations are associated with the machinery construction and arrangements, and may be assigned as considered appropriate by the Committee:

(d)

| OMC

This notation will be assigned to non-propelled units when the essential auxiliary machinery has been constructed, installed and tested under LRs Special Survey and in accordance with LRs Rules. This notation will be assigned to non-propelled units when the essential auxiliary machinery has been constructed under the survey of a recognized authority in accordance with the Rules and Regulations equivalent to those of LR. In addition, the whole of the machinery will be required to have been installed and tested under LRs Special Survey in accordance with LRs Rules. This notation (without |) will be assigned to non-propelled units when the essential auxiliary machinery has neither been constructed nor installed under LRs Special Survey but the existing machinery, its installation and arrangement, has been tested and found to be acceptable to LR. This notation will be assigned when the propelling and essential auxiliary machinery have been constructed, installed and tested under LRs Special Survey and in accordance with LRs Rules. This notation will be assigned when the propelling and essential auxiliary machinery have been constructed under the survey of a recognized authority in accordance with the Rules and Regulations equivalent to those of LR. In addition, the whole of the machinery will be required to have been installed and tested under LRs Special Survey in accordance with LRs Rules.LLOYDS REGISTER

OMC

(e)

OMC

Assignment of these notations will be project specific and depends on whether the unit is a new build or tanker conversion; whether the unit is permanently moored or disconnectable and the site specific environmental conditions, See Table 2.4.1. The design procedures given in the LR ShipRight Procedure for Floating Offshore Installations (FOI), are required to be applied for hull strength, fatigue and construction aspects.

| LMC

LMC

6


Classification RegulationsLMC This notation (without |) will be assigned when the propelling and essential auxiliary machinery have neither been constructed nor installed under LRs Special Survey but the existing machinery, its installation and arrangement, has been tested and found to be acceptable to LR. This notation will be assigned, when a unit having facilities for the storage of crude oil in bulk is fitted with an approved system for producing gas for inerting the crude oil storage tanks.

Part 1, Chapter 2Section 2 equipment has been arranged, installed and tested in accordance with LRs Rules, or is equivalent thereto. DP(AM) This notation may be assigned when a unit is fitted with automatic main and manual standby controls for position keeping and with position reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LRs Rules, or is equivalent thereto. This notation may be assigned when a unit is fitted with automatic main and automatic standby controls for position keeping and with position reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LRs Rules, or is equivalent thereto. This notation may be assigned when a unit is fitted with automatic main and automatic standby controls for position keeping, together with an additional/emergency automatic control unit located in a separate compartment and with position reference systems and environmental sensors. It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LRs Rules, or is equivalent thereto.

IGS

2.5.2 The following class notations are associated with the machinery control and automation, and may be assigned as considered appropriate by the Committee:UMS This notation may be assigned to self-propelled disconnectable units where the arrangements are such that the unit can be operated with the machinery spaces unattended. It denotes that the control engineering equipment has been arranged, installed and tested in accordance with LRs Rules, or is equivalent thereto. This notation will normally be suspended when the unit is operating at a fixed location. This notation may be assigned when the arrangements are such that the machinery may be operated with continuous supervision from a centralized control station. It denotes that the control engineering equipment has been arranged, installed and tested in accordance with LRs Rules, or is equivalent thereto. This notation may be assigned when the arrangements are such that the control and supervision of the units operational functions are computer based. It denotes that the control engineering equipment has been arranged, installed and tested in accordance with LRs Rules, or is equivalent thereto. This notation may be assigned to a unit classed with LR when the arrangements of the machinery are such that the propulsion equipment and all the essential auxiliary machinery are integrated with the power unit for operation under all normal sea-going and manoeuvring conditions. The system is to be bridge controlled and the propulsion equipment is to incorporate an emergency means of propulsion in the event of failure in the prime mover. It also denotes that the machinery and control equipment have been arranged, installed and tested in accordance with LRs Rules.

DP(AA)

DP(AAA)

CCS

ICC

2.5.4 The foregoing dynamic positioning notations can be supplemented with a Performance Capability Rating (PCR). This rating indicates the calculated percentage of time that a unit is capable of holding heading and position under a standard set of environmental conditions (North Sea), see Pt 3, Ch 9. 2.5.5 Machinery class notations will not be assigned to units the hull/structure of which is not classed or intended to be classed with LR. 2.5.6 The notations | LMC, LMC and LMC (without |) will, in general, not be assigned to non-self-propelled vessels, but individual cases may be considered on their merits. 2.5.7 Special consideration will be given to assignment of additional notations given in Pt 1, Ch 2 of the Rules for Ships at the request of the owner. The assignment of such notations will be conditional on compliance with all applicable requirements relevant to the unit type and service.

IP

2.5.3 The following class notations are associated with dynamic positioning arrangements and may be assigned as considered appropriate by the Committee:DP(CM) This notation may be assigned when a unit is fitted with centralized remote manual controls for position keeping and with position reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering

2.6

Class notations (Environmental Protection)

2.6.1 The following class notations are associated with the design and operation of a unit and may be assigned as considered appropriate by the Committee, on application from the Owners (see Pt 7, Ch 11 of the Rules for Ships):

LLOYDS REGISTER

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Classification RegulationsEP This notation will be assigned when a unit is designed and operated in accordance with the relevant requirements of the Rules for Ships. This notation will be assigned when the environmental protection arrangements are in accordance with the requirements of another recognized classification society and are essentially equivalent to Rule requirements and the unit is operated in accordance with the relevant requirements of the Rules for Ships.


EP

2.8.6 Where evidence exists that supporting calculations have been performed in accordance with hull structural finite element and fatigue analysis procedures of a recognized Classification Society, then, on application from Owners, the descriptive note S hipRight (E) may be entered on the ClassDirect Live website. 2.8.7 Where LRs ShipRight procedures for the following have been applied on a voluntary basis to ship units, then a descriptive note will, at the Owners request, be entered on the ClassDirect Live website (see also Pt 3, Ch 16 and Pt 5, Ch 21 of the Rules for Ships):ES SEA (Hss-n) SERS SCM MCM HPMS MPMS RCM BWMP Enhanced Scantlings Ship Event Analysis (Hull Surveillance Systems) Ship Emergency Response Service Screwshaft Condition Monitoring Machinery Condition Monitoring Hull Planned Maintenance Scheme Machinery Planned Maintenance Scheme Reliability Centred Maintenance Ballast Water Management Plan

2.6.2 The class notations defined in 2.6.1 will be suspended on change of Owner or Manager until LR can confirm by audit that the necessary operational procedures required by the Rules for Ships are established.

2.7

Class notation (Verification Schemes)

2.7.1 When an Owner requests classification based on a Formal Safety Assessment, see 1.1.5, and verification is carried out by LR in accordance with the Regulations of a National Administration and the Guidelines in Part 1A, the class notation C AV may also be assigned to classed installations as considered appropriate by the Committee.

2.8

Descriptive notes

2.8.1 In addition to any class notations, appropriate descriptive qualification notes may be entered in Column 1 of the ClassDirect Live website indicating the type of unit in greater detail than is contained in the class notation, and/or providing additional information about the design and construction, e.g. semi-submersible. A descriptive note is not a LR classification notation and is provided solely for the information of users of the ClassDirect Live website. 2.8.2Examples of descriptive notes are given below: Unit based on converted tanker Turret mooring (internal/external) Multi point positional mooring Unit can be disconnected from fixed mooring Helicopter deck approval Crude oil washing certified by LR Segregated ballast tanks certified by LR

Section 3 Surveys GeneralStatutory surveys

3.1

3.1.1 The Committee will act, when authorized on behalf of National Administrations, in respect of National and International Statutory Safety and other requirements for offshore installations. 3.1.2 The Committee will also act, when authorized, in respect of National Safety, Coastal State Regulations relating to Offshore Units used for the exploitation of hydrocarbons.

Tanker conversion Turret mooring Spread mooring Disconnectable unit Helideck COW (LR) SBT (LR)

3.2

New construction surveys

2.8.3 When a notation is assigned in accordance with 2.7 a descriptive note will also be added on LRs ClassDirect Live website to indicate the applicable National Administration, e.g. Norwegian Verification ( N), United Kingdom Verification (UK). 2.8.4 Where an approved loading instrument is provided as an Owners requirement a descriptive note L I may be entered on the ClassDirect Live website. 2.8.5 Where an Owner elects to undertake hull Special Survey in accordance with the requirements of Pt 1, Ch 3,7 of the Rules for Ships, the descriptive note ESP may be entered on the ClassDirect Live website.8

3.2.1 When it is intended to build a unit for classification with LR, construction plans and all necessary particulars relevant to the hull/structure, equipment and machinery, as detailed in the Rules, are to be submitted for the approval of LR before the work is commenced. Any subsequent modifications or additions to the scantlings, arrangements or equipment shown on the approved plans are also to be submitted for approval. 3.2.2 Where the proposed construction of any part of the hull/structure or machinery is of novel design, or involves the use of unusual material, or where experience, in the opinion of LR, has not sufficiently justified the principle or mode of application involved, special tests or examinations before and during service may be required. In such cases a suitable notation may be entered on the ClassDirect Live website.

LLOYDS REGISTER


Classification Regulations3.2.3 The materials used in the construction of the hull/structure and machinery intended for classification are to be good quality and free from defects and are to be tested in accordance with the requirements of The Rules for Materials (Part 2). The steel is to be manufactured by an approved process at works recognized by the Committee. Alternatively, tests to the satisfaction of LR will be required to demonstrate the suitability of the steel. 3.2.4 Materials used in the construction of drilling and process plant and riser systems are to comply with 3.2.3 and with the requirements of Part 3. 3.2.5 Where classification is to be based on a formal safety case approach, see 1.1.4, special consideration will be given by LR to the use of materials in accordance with internationally recognized Codes and Standards, see 3.2.3. 3.2.6 New installations intended for classification are to be built under LRs Special Survey. From the commencement of work until the completion of the installation, the Surveyors are to be satisfied that the materials, workmanship and arrangements are satisfactory and in accordance with the Rules. Any items found not to be in accordance with the Rules or the approved plans, or any material, workmanship or arrangements found to be unsatisfactory, are to be rectified. 3.2.7 For compliance with 3.2.6, LR is prepared to consider methods of survey and inspection for hull construction which formally include procedures involving the shipyard management, organization and quality systems. The minimum requirements for the approval of any such proposed Quality Assurance methods are laid down in Pt 4, Ch 12. 3.2.8 Copies of approved plans (showing the unit as built), essential certificates and records, the operations manual and loading and other instruction manuals are to be readily available for use when required by LRs Surveyors, and may be required to be kept on board. 3.2.9 When the machinery, drilling/process plants and riser systems of an installation are constructed under LRs Special Survey, this survey is to relate to the period from the commencement of the work until the final test under working conditions. Any items found not to be in accordance with the Rules or the approved plans, or any material, workmanship or arrangements found to be unsatisfactory, are to be rectified. 3.2.10 When remote and/or automatic control equipment, alarms and safeguards are fitted to the machinery, drilling/process plants, and riser systems, the equipment is to be arranged, installed and tested in accordance with LRs Rules. 3.2.11 The date of completion of the Special Survey during construction of units built under LRs inspection will normally be taken as the date of build to be entered on the ClassDirect Live website. If the period between launching and completion as an installation is, for any reason, unduly prolonged, the dates of launching and completion as an installation may be separately indicated on the ClassDirect Live website.LLOYDS REGISTER


3.2.12 When a unit, upon completion, is not immediately commissioned as an installation but is laid-up for a period, the Committee, upon application by the Owner prior to the unit being commissioned as an installation, will direct an examination to be made on site or in dry-dock by LRs Surveyors. If, as a result of such survey, the structure, equipment and machinery be reported in all respects free from deterioration, the subsequent Special Survey and Complete Survey of the machinery will date from the time of such examination.

3.3

Existing installations

3.3.1 Classification of units not built under survey. The requirements of the Committee for the classification of units which have not been built under LRs Survey are indicated in Ch 3,19. Special consideration will be given to units transferring class to LR from another recognized Classification Society.Reclassification. When reclassification or class 3.3.2 reinstatement is desired for an installation for which the class previously assigned by LR has been withdrawn or suspended, the Committee will direct that a survey appropriate to the age of the installation and the circumstances of the case, be carried out by LRs Surveyors. If, at such survey, the installation is found to be or is placed in a good and efficient condition in accordance with the requirements of the Rules and Regulations, the Committee will be prepared to consider reinstatement of the original class or the assignment of such other class as may be deemed necessary.

3.3.3 The Committee reserves the right to decline an application for classification or reclassification where the prior history or condition of the installation indicates this to be appropriate.

3.4

Damages, repairs and alterations

3.4.1 All repairs to hull/structure, equipment, machinery and drilling/process plant which may be required in order that an installation may retain its class, see 1.1.9, are to be carried out to the satisfaction of LRs Surveyors. Alternatively, the Committee may agree, in exceptional cases that quality control can be enforced by the Owner or repairer, on site, in which case the repairs are to be surveyed by LRs Surveyors at the earliest opportunity thereafter. 3.4.2 When at any survey the Surveyors consider repairs to be immediately necessary, either as a result of damage, or wear and tear, they are to communicate their recommendations at once to the Owner, or his representative. When such recommendations are not complied with, immediate notification is to be given to the Committee by the Surveyors. 3.4.3 When at any survey it is found that any damage, defect or breakdown (see 1.1.9) is of such a nature that does not require immediate permanent repair, but is sufficiently serious to require rectification by a prescribed date in order to maintain class, a suitable condition of class is to be imposed by the Surveyors and recommended to the Committee for consideration.9


Classification Regulations3.4.4 If a unit which is classed with LR as an installation is damaged to such an extent as to necessitate towage whilst in a damaged condition to a suitable repair facility, it shall be the Owners responsibility to notify LR at the first practicable opportunity. 3.4.5 Plans and particulars of any proposed alterations to the approved scantlings and arrangements of hull/structure, equipment, machinery or drilling/process plant are to be submitted for approval, and such alterations are to be carried out to the satisfaction of LRs Surveyors.

Part 1, Chapter 2Section 3 country in which the installation is registered.

3.5.8 When LR is to carry out verification on behalf of a National Administration, classification surveys required by the Rules, will, where practicable, be combined, and aligned, with the surveys required by the National Administration. 3.5.9 All installations classed with LR are also to be subjected to Special Surveys in accordance with the requirements given in Chapter 3,5. These surveys become due at five-yearly intervals, the first one five years from the date of build or date of Special Survey for Classification as recorded on the ClassDirect Live website, and thereafter five years from the date recorded for the previous Special Surveys, see also 3.2.11. Consideration may be given at the discretion of the Committee to any exceptional circumstances justifying an extension of the hull classification to a maximum of three months beyond the fifth year. If an extension is agreed the next period of hull classification will start from the date of the Special Survey before the extension was granted. A definition of exceptional circumstances is given in 3.5.5. 3.5.10 Special surveys may be commenced at the fourth Annual Survey after completion, commissioning, or previous Special Survey, and be progressed during the succeeding year with a view to completion by the due date of the Special Survey. 3.5.11 Special Surveys which are commenced prior to their due date are not to extend over a period greater than 15 months, if such work is to be credited towards the Special Survey. Where the Special Survey is completed more than three months before the due date, the new record of Special Survey will be the final date of survey. In all other cases the date recorded will be the fifth anniversary. 3.5.12 At the request of an Owner, the Committee may agree that the Special Survey of the hull/structure is carried out on the Continuous Survey basis, where all compartments of the hull are to be opened for survey and testing, in rotation, with an interval of five years between consecutive examinations of each part. In general, approximately one fifth of the Special Survey is to be completed each year and all the requirements of the particular Special Survey of the hull/structure must be completed by the end of the five year cycle. If the examination during Continuous Survey reveals any defects, further parts are to be opened up and examined as considered necessary by the Surveyor. For examination of items listed in Ch 3,2.2.13, 2.6 and Ch 3,3.2.3, 3.2.4, 3.2.6, 3.2.8, 3.2.9 and 3.2.11 the intervals for inspection will require to be specially agreed. Units which have satisfactorily completed the cycle will have the date of completion entered in the Survey Records which will not be later than five years from the last assigned date of complete Survey of the hull/structure. The agreement for surveys to be carried out on Continuous Survey basis may be withdrawn at the discretion of the Committee. 3.5.13 The Owner is to prepare a planned survey programme for the inspection of the hull/structure after each Special Survey before the next Annual Survey is due. The survey programme is to cover the requirements for Annual Surveys, Intermediate Surveys, Special Periodical Surveys, Special Continuous Surveys, Docking Surveys and In-water Surveys in lieu of Docking Surveys and is to be submitted toLLOYDS REGISTER

3.5

Existing installations Periodical Surveys

3.5.1 Annual Surveys are to be held on all installations within three months, before or after each anniversary of the completion, commissioning or Special Survey in accordance with the requirements given in Chapter 3. The date of the last Annual Survey will be recorded on the ClassDirect Live website. 3.5.2 Intermediate Surveys are to be held on all installations instead of the second or third Annual Survey after completion, commissioning or Special Survey in accordance with the requirements given in Ch 3,3. The Intermediate Survey maybe commenced at the second Annual Survey and progressed with completion at the third Annual Survey. The date of the last Intermediate Survey will be recorded on the ClassDirect Live website. 3.5.3 The Owner should notify LR whenever a unit which is classed as an installation can be examined in dry-dock. Units are to be examined in dry-dock in accordance with Ch 3,4. The Committee will accept In-water Surveys in lieu of Docking Surveys on installations assigned an OIWS (In-water Survey) notation, see Ch 3,4.3. The frequency of Docking Surveys and In-water Surveys are to be in accordance with 3.5.4. 3.5.4 The underwater parts of an installation are to be examined in dry-dock or by an In-water Survey at intervals of 21/2 years but the survey may be held within six months either side of the due date provided the maximum period between Dockings Surveys or In-water Surveys in lieu of Docking Surveys and the Special Survey required by 3.5.9 does not exceed three years. 3.5.5 One of the two Docking Surveys or In-water Surveys in lieu of Docking Surveys required in each five year period is to coincide with the Special Survey, see 3.5.9. Consideration may be given in exceptional circumstances to an extension of this interval not exceeding three months beyond the due date. In this context exceptional circumstances means unavailability of dry-docking facilities, repair facilities, essential materials, equipment or spare parts or delays incurred by action taken to avoid severe weather conditions. 3.5.6 The date of the last examination in dry-dock or In-water Survey will be recorded in the Survey Records. 3.5.7 Attention is to be given to all relevant statutory requirements of the Coastal State Authority in the area where the installation is to operate and/or the Authority in the10


Classification RegulationsLR for review. A copy is to be kept on board and made available to the Surveyor. The programme should include plans, etc., for identifying the areas to be surveyed, the extent of hull cleaning, locations for non-destructive examination (including NDE methods), nomenclature, and methods for the recording of any damage or deterioration found. The planned survey programme, as agreed by LR, will be subject to revision if found to be necessary at subsequent surveys or when required by the Surveyor. See Ch 3,1.6.


3.5.21 If any examination during Continuous Survey reveals defects, further parts are to be opened up and examined as considered necessary by the Surveyor, and the defects are to be made good to the Surveyors satisfaction. 3.5.22 Upon application by an Owner, the Committee may agree to an arrangement whereby, subject to certain conditions, some items of machinery may be examined by the Chief Engineer of the unit followed by a limited confirmatory survey carried out later by an Exclusive Surveyor. Particulars of this arrangement may be obtained from LR. Where an approved planned maintenance scheme is in operation the confirmatory surveys may be held at annual intervals, at which time the records will be checked and the operation of the scheme verified. Particulars of this arrangement may be obtained from LR. 3.5.23 Where condition monitoring equipment is fitted, the Committee, upon application by the Owner, will be prepared to amend applicable Periodical Survey requirements where details of the equipment are submitted and found satisfactory. Where machinery installations are accepted for this method of survey, it will be a requirement that an Annual Survey be held, at which time monitored records will be analysed and the machinery examined under working conditions. An acceptable lubricating oil trend analysis programme may be required as part of the condition monitoring procedures. 3.5.24 The survey of boilers and other pressure vessels and the examination of steam pipes and Screwshaft Surveys are to be carried out as stated in Chapter 3, Sections 10 to 12. 3.5.25 The survey of pressure vessels for process and drilling plant are to be carried out as stated in Ch 3,16. 3.5.26 Where any inert gas system is fitted for the protection of storage tanks on board a unit intended for the storage of crude oil in bulk, the system is to be surveyed annually in accordance with the requirements of Ch 3,2.6. In addition, on units to which an I GS notation has been assigned, a Special Survey of the inert gas plant is to be carried

Documents

Lr Foi Rules