DNV-OSS-201: Verification for Compliance with Norwegian Shelf ...

OFFSHORE SERVICE SPECIFICATION

DET NORSKE VERITAS

DNV-OSS-201

VERIFICATION FOR COMPLIANCE WITH NORWEGIAN SHELF

REGULATIONS

JULY 2003

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FOREWORD

DET NORSKE VERITAS (DNV) is an autonomous and independent foundation with the objectives of safeguarding life, prop-erty and the environment, at sea and onshore. DNV undertakes classification, certification, and other verification and consultancyservices relating to quality of ships, offshore units and installations, and onshore industries worldwide, and carries out researchin relation to these functions.

DNV Offshore Codes consist of a three level hierarchy of documents:

— Offshore Service Specifications. Provide principles and procedures of DNV classification, certification, verification and con-sultancy services.

— Offshore Standards. Provide technical provisions and acceptance criteria for general use by the offshore industry as well asthe technical basis for DNV offshore services.

— Recommended Practices. Provide proven technology and sound engineering practice as well as guidance for the higher levelOffshore Service Specifications and Offshore Standards.

DNV Offshore Codes are offered within the following areas:

A) Qualification, Quality and Safety Methodology

B) Materials Technology

C) Structures

D) Systems

E) Special Facilities

F) Pipelines and Risers

G) Asset Operation

H) Marine Operations

Amendments and Corrections This document is valid until superseded by a new revision. Minor amendments and corrections will be published in a separatedocument on the DNV web-site; normally updated twice per year (April and October). To access the web-site, select short-cutoptions "Technology Services" and "Offshore Rules and Standards" at http://www.dnv.com/

The electronic web-versions of the DNV Offshore Codes will be regularly updated to include these amendments and corrections.

DET NORSKE VERITAS

Offshore Service Specification DNV-OSS-201, July 2003 Contents –

CONTENTS

CH. 1 PRINCIPLES AND PROCEDURES ................. 5

Sec. 1 Introduction........................................................... 7

A. Introduction ............................................................................7A 100 General.............................................................................. 7A 200 Organisation of DNV-OSS-201........................................ 7A 300 Objects covered................................................................. 7

B. Definitions .............................................................................. 7B 100 Verbal forms ..................................................................... 7B 200 Definitions ........................................................................ 7

C. References .............................................................................. 8C 100 Normative references ....................................................... 8C 200 Informative references ...................................................... 8

D. Abbreviations..........................................................................8D 100 General.............................................................................. 8

Sec. 2 Verification Principles and Class Notations....... 9

A. Verification Principles ............................................................ 9A 100 General.............................................................................. 9A 200 Regulatory basis................................................................ 9A 300 Regulatory considerations for floating units..................... 9A 400 Acknowledgement of Compliance (AoC) ....................... 9A 500 Verification basis .............................................................. 9

B. Class Notations ....................................................................... 9B 100 General.............................................................................. 9B 200 Class notations ...............................................................10

C. Classification Principles, Procedure and Legal Provisions ..10C 100 General............................................................................ 10

CH. 2 DESIGN AND CONSTRUCTION PROVISIONS ..................................................... 11

Sec. 1 Introduction......................................................... 13

A. General..................................................................................13A 100 General............................................................................ 13

Sec. 2 Drilling Unit (N) ................................................ 14

A. Introduction .........................................................................14A 100 Application...................................................................... 14A 200 Class notations ................................................................ 14

B. Verification Scope ................................................................14B 100 Supplementary requirements for areas already

covered by class .............................................................. 14B 200 Supplementary areas covered by N-notation.................. 14B 300 Limitations ...................................................................... 15

C. Procedures for Classification................................................15C 100 Procedures for classification........................................... 15

Sec. 3 Production and/or Storage Unit (N) ........... 16

A. Introduction ..........................................................................16A 100 Application...................................................................... 16A 200 Class notations ................................................................ 16

B. Verification Scope ................................................................16B 100 Supplementary requirements for areas covered

by class............................................................................ 16B 200 Supplementary areas covered by N-notation.................. 16B 300 Limitations ...................................................................... 17

C. Procedures for Classification................................................17C 100 General............................................................................ 17

Sec. 4 Well Intervention Unit (N) ............................. 18

A. Introduction..........................................................................18A 100 Application ..................................................................... 18A 200 Class notations ................................................................ 18


by class............................................................................ 18B 200 Supplementary areas covered by N-notation .................. 18B 300 Limitations...................................................................... 19


Sec. 5 Accommodation Unit (N) .............................. 20



by class............................................................................ 20B 200 Supplementary areas covered by N-notation.................. 20B 300 Limitations...................................................................... 21


Sec. 6 DRILL (N) ........................................................... 22


B. Verification Scope ................................................................22B 100 General............................................................................ 22B 200 Supplementary verification for DRILL (N) .................. 22B 300 Limitations...................................................................... 22

C. Procedures for Verification...................................................22C 100 Design Verification......................................................... 22C 200 Certification of Materials and Components.................... 22C 300 Survey during construction, installation and

commissioning................................................................ 22

Sec. 7 PROD (N) ........................................................... 23


B. Verification Scope ................................................................23B 100 General............................................................................ 23B 200 Limitations...................................................................... 23

C. Procedures for Verification...................................................23C 100 Design verification.......................................................... 23C 200 Certification of materials and components ..................... 23C 300 Survey during construction, installation and

commissioning................................................................ 23

CH. 3 CLASSIFICATION IN OPERATION ............. 25

Sec. 1 General Provisions for Periodical Surveys ...... 27

A. General..................................................................................27A 100 Principles and procedures ............................................... 27

B. Class Renewal for N-notation...............................................27B 100 General............................................................................ 27

Sec. 2 Periodic Survey Extent for N-notations ........... 28

A. Drilling Unit (N) .................................................................28A 100 Application ..................................................................... 28

DET NORSKE VERITAS

Offshore Service Specification DNV-OSS-201, July 2003 – Contents

A 200 Annual and complete periodical surveys ........................28

B. Production and/or Storage Unit (N) ............................ 28B 100 Application......................................................................28B 200 Annual and complete periodical surveys ........................28

C. Well Intervention Unit (N) .............................................. 28C 100 Application......................................................................28C 200 Annual and complete periodical surveys ........................28

D. Accommodation Unit (N) ............................................... 28D 100 Application......................................................................28D 200 Annual and complete periodical surveys ........................28

E. DRILL (N) ............................................................................ 28E 100 Application......................................................................28E 200 Annual and complete periodical surveys ........................28

F. PROD (N) ............................................................................ 28F 100 Application......................................................................28F 200 Annual and complete periodical surveys ........................28

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Veritasveien 1, N-1322 Høvik, Norway Tel.: +47 67 57 99 00 Fax: +47 67 57 99 11

OFFSHORE SERVICE SPECIFICATIONDNV-OSS-201

VERIFICATION FOR COMPLIANCE WITH NORWEGIANSHELF REGULATIONS

CHAPTER 1

PRINCIPLES AND PROCEDURES

CONTENTS PAGE

Sec. 1 Introduction ................................................................................................................................ 7Sec. 2 Verification Principles and Class Notations............................................................................... 9

DET NORSKE VERITAS

Offshore Service Specification DNV-OSS-201, July 2003Ch.1 Sec.1 –

SECTION 1INTRODUCTION

A. Introduction

A 100 General101 DNV Offshore Classification aims to assure safety andreliability of offshore units and installations with regard to de-sign, construction and operation. Wherever possible DNV of-fers additional, integrated services to assist clients towardfulfilling coastal state legislation, giving credit for classifica-tion activities.

102 This publication, DNV-OSS-201, presents standardisedDNV verification services building on class, which may beused to document partial compliance with verification obliga-tions related to operation on the Norwegian Continental Shelf(NCS).

A 200 Organisation of DNV-OSS-201201 DNV-OSS-201 is divided into three main chapters:

— Chapter 1: General information about classification serv-ices related to operation on the Norwegian ContinentalShelf (NCS).

— Chapter 2: Design and construction requirements for thenewbuilding phase

— Chapter 3: Requirements for maintenance of NCS relatedclass notations in the operational phase.

A 300 Objects covered301 DNV-OSS-201 covers NCS related class services foroffshore objects of the following types:

— drilling units— production units— storage units— well intervention units— accommodation units.

and the following types of installed industrial facilities:

— drilling plants— production plants.

B. Definitions

B 100 Verbal forms101 Shall: Indicates requirements strictly to be followed inorder to conform to this service specification.

102 Should: Indicates that among several possibilities one isrecommended as particularly suitable, without mentioning orexcluding others, or that a certain course of action is preferredbut not necessarily required. Other possibilities may be appliedsubject to agreement.

103 May: Verbal form used to indicate a course of actionpermissible within the limits of the service specification.

B 200 Definitions201 Acknowledgement of Compliance (AoC): An acknowl-edgement from NPD to the effect that a mobile drilling unit’stechnical condition and the applicant’s organisation and man-agement system are assessed to the best of the directorate’sjudgement to be in conformity with relevant requirements ofNorwegian shelf rules. (Ref. guidelines to §21 in NPD “Frame-work regulations”)

202 Approval or approved: Denotes acceptance by DNV of

documentation showing design solutions, arrangements and/orequipment to comply with the rules/standards.

203 Assigning class: Originally signified designation of oneof several classes to a ship based on its condition, ranging fromgood to bad. Today only the highest class is assigned, compris-ing the main class, 1A1, and an obligatory additional class no-tation, e.g. Drilling Unit, where applicable.

Voluntary additional class notations may also be assigned cov-ering special service, equipment or systems, e.g. DRILL de-noting a classed drilling plant.

204 CE-mark: CE denotes “Communautée Européenne”,and confirms that equipment complies relevant European Un-ion Directives.

205 CIBS: Classification Information Breakdown Structure;a coding system for documentation.

206 Classification: Comprises those services rendered byDNV in accordance with the rules. Classification of offshoreunits is conducted in accordance with the requirements of therules and any standards referred to by the rules.

207 Classification certificate: Issued upon assignment or re-newal of class. Its validity is five years subject to successfulcompletion of annual and intermediate surveys.

208 Client: The party having requested classification or hav-ing assumed ownership of a classed offshore unit or installa-tion. In cases where owners have authorised another party tooperate the unit or installation on their behalf, such party is re-garded as the client.

209 Contract: The specific agreement between DNV and theclient. It defines the extent of services requested by the client,and is concerned with:

— the classification of offshore units or installations, bothnewbuildings and in operation

— statutory work carried out on behalf of national maritimeauthorities

— equipment and materials.

210 Det Norske Veritas (DNV): An autonomous and inde-pendent foundation with the object of safeguarding life, prop-erty and the environment. DNV undertakes classification andcertification and ensures the quality of ships, offshore unitsand installations, facilities and systems, and carries out re-search in connection with these functions.

DNV operates a world wide network of survey stations and isauthorised by more than 120 national administrations to carryout surveys and, in most cases, issue certificates on their be-half.

211 Guidance note: Advice which is not mandatory for as-signment of class, but with which DNV, in light of general ex-perience, advises compliance. The client may decide whetherto apply the note or not.

212 Mobile offshore unit (MOU): A buoyant constructionengaged in offshore operations including drilling, production,storage or support functions, not intended for service at oneparticular offshore site and which can be relocated without ma-jor dismantling or modification.

213 Notified Body: Independent organisations appointed byEEA national authorities to undertake conformity assessmentbefore a product is CE-marked according to a EU directive.DNV is notified body for many EU directives.

214 Offshore installation: A collective term to cover anyconstruction, buoyant or non-buoyant, designed and built for

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Offshore Service Specification DNV-OSS-201, July 2003 – Ch.1 Sec.1

installation at a particular offshore location.

215 Owner: In the context of this Service Specification, theOwner is defined as the party responsible for the offshore unitor installation including its operation and safety.

216 Recognised classification society: A classification soci-ety which is a full or associate member of IACS.

217 Statutory certificates: IMO convention certificates is-sued on behalf of, or by, national authorities.

218 Supplier or manufacturer: Supplies materials, compo-nents, equipment and systems to newbuildings to be classed, orto classed units in operation, whose production is subject to de-sign approval, surveys and testing in accordance with the rules.

C. References

C 100 Normative references

101 DNV-OSS-201 includes references to other DNV docu-ments and regulations, codes and standards which shall beused in conjunction with the requirements given in DNV-OSS-201 for assignment of class.

Latest issue of the references shall be used unless otherwiseagreed.

102 DNV documents referred to are given in Table C1.

103 Non-DNV standards and other verification referencesare given in Table C2.

C 200 Informative references201 The documents listed in Table C3 are referred to as asource of supplementary information.

D. Abbreviations

D 100 General101 The abbreviations given in Table D1 are used in thisdocument.

Table C1 Normative DNV referencesReference TitleDNV-OSS-101 Rules for Classification of Offshore Drilling and

Support UnitsDNV-OSS-102 Rules for Classification of Floating Production

and Storage UnitsDNV-OS-D101 Marine and Machinery Systems and EquipmentDNV-OS-D201 Electrical InstallationsDNV-OS-D202 Instrumentation and Telecommunication SystemsDNV-OS-E101 Drilling PlantDNV-OS-E201 Hydrocarbon Production PlantDNV-RP-A202 Documentation of Offshore Projects

Table C2 Normative references other than DNVReference TitleNPD Regulations relating to design and outfitting of

facilities etc. in the petroleum activities, 2001-09-03

NPD Regulations relating to conduct of activities in the petroleum activities, 2001-09-03

NMD No. 123 of 1994-02-10

Regulations for mobile offshore units with pro-duction plants and equipment

NMD No.227 of 1984-01-31

Regulations concerning precautionary measures against fire and explosion on mobile offshore units

NMD No.702 of 1991-09-09

Regulations concerning evacuation and lifesav-ing appliances on mobile offshore units

NMD No.856 of 1987-09-04

Regulations concerning construction of mobile offshore units

NMD No.857 of 1987-09-04

Regulations concerning anchoring/positioning systems on mobile offshore units

NMD No.878 of 1991-12-20

Regulations concerning stability, watertight sub-division and watertight/weathertight closing means on mobile offshore units

NMD No.879 of 1991-12-20

Regulations concerning ballast systems on mo-bile offshore units

NMD No.1200 of 1993-12-16

Regulations concerning the installation and use of radio equipment on mobile offshore units

NMD No.1239 of 1993-12-22

Regulations concerning risk analyses for mobile offshore units

NMD No. 1240 of 1993-12-22

Regulations concerning helicopter decks on Mo-bile Offshore Units

NMD No.2318 of 1986-12-17

Regulations concerning the construction and equipment of living quarters on mobile offshore units

Norwegian Min-istry of Local Government and Labour

Regulations relating to asbestos, 1991

API RP 14C Analysis, design, installation and testing of basic surface safety systems for offshore production platforms

ISO-13628 Design and operation of subsea production sys-tems

ISO 10418 Analysis, design, installation and testing of basic surface safety systems

NORSOK D-001 Drilling facilitiesNORSOK D-002 System requirements well intervention equip-

mentNORSOK L-001 Piping and valvesNORSOK L-002 Piping design, layout and stress analysis NORSOK P-001 Process designNORSOK P-100 Process systemsNORSOK S-001 Technical safetyNORSOK U-001 Subsea production systems

Table C3 Informative referencesReference TitleOLF/ NR Handbook for application for Acknowledgement of

Compliance (AoC)

Table D1 AbbreviationsAbbreviation Full NameAoC Acknowledgement of ComplianceDNV Det Norske VeritasEEA European Economic AreaEMC Electro Magnetic CompatibilityEU European UnionIACS International Association of Classification SocietiesMOU Mobile Offshore UnitNBH Norwegian Board of HealthNCS Norwegian Continental ShelfNMD Norwegian Maritime DirectorateNPD Norwegian Petroleum Directorate NR Norwegian Shipowners’ Association (Norges Red-

eriforbund)OLF Norwegian Oil Industry AssociationSFT Norwegian Pollution Control AuthoritySoC Statement of Compliance

DET NORSKE VERITAS


SECTION 2VERIFICATION PRINCIPLES AND CLASS NOTATIONS

A. Verification Principles

A 100 General

101 According to the Norwegian Petroleum Act, the owneris fully responsible for verification activities ensuring that theunit/installation and related operations are in compliance withthe applicable regulatory requirements.

102 The owner may utilise internal as well as external veri-fication activities to demonstrate partial or full compliancewith his verification obligations. Documentation may include:

— Maritime certificates issued by flag state administrationsand associated rules and regulations to which the certifi-cates are issued.

— Classification certificates — Work performed by consultants/technical specialists for

the owner/operator resulting typically in verification re-ports or Statements of Compliance (SoCs).

A 200 Regulatory basis

201 The regulatory body on the NCS is the Norwegian Petro-leum Directorate (NPD). Requirements for petroleum activi-ties on the NCS are stipulated by NPD together with TheNorwegian Pollution Control Authority (SFT) and The Norwe-gian Board of Health (NBH). The services described in thisdocument are interpreted from or contain reference to theNPD/SFT/NBH joint regulations given in Table A1.

A 300 Regulatory considerations for floating units301 NPD regulations make a distinction between mobileoffshore units (MOUs) following a maritime operational con-cept and other offshore installations with respect to the verifi-cation basis which may be applied (refer §3 of NPDFramework Regulations).

302 MOUs are in this context understood as classed installa-tions which are registered by a national flag administration andare not permanently placed on the NCS.

Typical examples of such units are:

— drilling units— well intervention units— multi-purpose units— production and/or storage units following a maritime op-

erational concept and not permanently placed on the NCS.

303 Offshore installations are typically:

— installations directly supported by the seabed— production and/or storage units permanently placed for the

lifetime of a field— non flagged/classed offshore units.

Guidance note:In some cases it may be a matter of judgement if the object canbe categorised as a “maritime practice” offshore unit accordingto NPD regulations. It is recommended that the NPD is contactedat an early stage in such projects for principal clarifications.

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A 400 Acknowledgement of Compliance (AoC) 401 NPD operate an approval scheme for MOUs named “Ac-knowledgement of Compliance” (AoC). The AoC is an ac-knowledgement from NPD to the effect that a mobile offshoreunit’s technical condition and the applicant’s organisation andmanagement system are assessed to the best of the NPD’sjudgement to be in conformity with relevant requirements ofNorwegian shelf rules.

402 The AoC scheme is mandatory, but currently only ap-plies for drilling units. From 2005 the scheme is planned to ap-ply also to:

— accommodation units— multi purpose units— production and storage units with flag and class.

403 DNV services described in this document may be usedby owners to document partial compliance with NPD require-ments for an AoC application.

404 Details on the AoC scheme are given in “Handbook forApplication for Acknowledgement of Compliance (AoC)”, is-sued by OLF/NR.

A 500 Verification basis501 Offshore installations shall always comply with the lat-est edition of the NPD Regulations and the associated guide-lines and reference standards.

502 MOUs may alternatively be accepted for operation onthe NCS based on compliance with relevant maritime regula-tions and class rules as an alternative to direct compliance withthe NPD Facility Regulations. This applies only to so-calledmaritime aspects. The units must be registered in a nationalship register, and follow a maritime operational concept with5-yearly renewal surveys.

503 The maritime regulations and corresponding class rulesthat may be applied are to have a safety level minimum corre-sponding to the latest edition of the NMD Regulations for Mo-bile Offshore Units (NMD Redbook) and supplementary DNVoffshore class rules.

504 Petroleum related aspects (e.g. drilling and productionplants) shall comply directly with the provisions of the NPDFacilities Regulations.

505 The approach described in 401 to 404 has been used asbasis for the services described in this document.

B. Class Notations

B 100 General101 Ch.2 and 3 of this document describes standardisedDNV verification services building on class which can be used

Table A1 NPD regulations referred to and used under this Service Specification Formal Regulation Title AbbreviationRegulations relating to Health, Environ-ment and Safety in the Petroleum Activi-ties, 2001-08-31

The Framework Regu-lations

Regulations relating to Management in the Petroleum Activities, 2001-09-03

The Management Reg-ulations

Regulations relating to Material andInformation in the Petroleum Activities, 2001-09-03

The Information Duty Regulations

Regulations relating to Design and Outfit-ting of Facilities etc. in the Petroleum Ac-tivities, 2001-09-03

The Facilities Regula-tions

Regulations relating to Conduct of Activi-ties in the Petroleum Activities, 2001-09-03

The Activities Regula-tions

DET NORSKE VERITAS


to document partial compliance with verification obligationsas described in A.

Guidance note:DNV’s results and conclusions related to services described inthis document are based on DNV’s understanding and interpreta-tion of the NPD’s regulations, but do no represent any formal ap-proval on behalf of NPD. Formal compliance with NPD requirements can only be con-firmed by the NPD itself. No other authorities or organisationshave delegated authority to act on behalf of NPD.


B 200 Class notations 201 Classed units/installations complying with the require-ments of the relevant sections of this document will, after com-pletion of prescribed design verifications and surveys beassigned the additional class notation:

(N)Verification basis applied for the (N)-notation will be stated inthe “Appendix to Class Certificate”.

202 The following N-notations are currently available:

— Drilling Unit (N)— Production Unit (N) — Storage Unit (N) — Well Intervention Unit (N)

— Accommodation Unit (N)— DRILL (N)— PROD (N).

C. Classification Principles, Procedure and Legal Provisions

C 100 General

101 The N-notations will be issued and maintained based onthe following main activities:

— design verification— certification of materials and components— survey during construction and installation— survey during commissioning and start-up— periodical survey during operation.

102 General principles, procedures and legal provisions forclassification applicable for this document are stated in Chap-ter 1 of the following DNV Offshore Service Specifications:

— DNV-OSS-101 for Drilling Unit (N), Well InterventionUnit (N), Accommodation Unit (N), DRILL (N)

— DNV-OSS-102 for Production Unit (N), Storage Unit (N) and PROD (N).

DET NORSKE VERITAS




CHAPTER 2

DESIGN AND CONSTRUCTION PROVISIONS

CONTENTS PAGE

Sec. 1 Introduction .............................................................................................................................. 13Sec. 2 Drilling Unit(N) ............................................................................................................................ 14Sec. 3 Production and/or Storage Unit(N) ................................................................................................ 16Sec. 4 Well Intervention Unit(N) .............................................................................................................. 18Sec. 5 Accommodation Unit (N) .............................................................................................................. 20Sec. 6 DRILL (N) ................................................................................................................................... 22Sec. 7 PROD (N) ................................................................................................................................... 23

DET NORSKE VERITAS


SECTION 1INTRODUCTION

A. General

A 100 General101 Unless otherwise stated the design and construction re-quirements given in this chapter are supplementary to the latestedition of relevant DNV class requirements. For units built toearlier editions of DNV class Rules or to class rules from an-other IACS society, an additional verification of compliancewith the DNV class Rules in force at the time when the N-no-tation is sought, shall be carried out in addition to the verifica-tion activities described in this chapter (ref. Ch.1 Sec.2 A501).

102 Activities related to issuing the N-notation shall normal-ly be carried out as an integral part of the activities related tothe corresponding class notations to which the (N) symbol willbe attached.

103 Unless otherwise stated class procedures, document re-quirements, extent of certification of materials and compo-nents, extent of surveys etc. shall be as required for thecorresponding class notations to which the (N) symbol will beattached.

DET NORSKE VERITAS


SECTION 2DRILLING UNIT (N)

A. Introduction

A 100 Application

101 The verification methodology described in this sectionmay be applied to mobile offshore drilling units satisfying thefollowing criteria:

— the unit is being classed with DNV with minimum servicenotation Drilling Unit

— the unit is registered with a national maritime administra-tion.

A 200 Class notations

201 Classed units/installations complying with the relevantrequirements of this section may, after completion of designreviews and surveys be assigned the class notation:

Drilling Unit (N)

B. Verification Scope

B 100 Supplementary requirements for areas already covered by class

101 The following areas covered by class shall be subjectedto supplementary verification and survey for N-notation:

— communications and alarms— stability, watertight and weathertight integrity — ballast systems— emergency sources of power— fire and explosion safety— emergency shutdown.

102 Technical references for the supplementary verificationare given in Table B1.

B 200 Supplementary areas covered by N-notation

201 The following additional areas not covered by DrillingUnit class will be subject to design verification and survey asbasis for assignment of the N-notation:

— risk analysis

— evacuation and lifesaving— living quarters— drinking water— radio equipment— means of access, ladders, stairs, railings, doors, corridors,

etc.— anchoring and positioning systems— navigation— helideck— asbestos.

202 Technical references for the supplementary verificationare given in Table B2:

Table B1 Verification basis for Drilling Unit (N)Area Reference CommentsCommunications and alarms

NPD Facilities Regulations (2001-09-03)

§ 17 and 18

Stability, water-tight and weather-tight integrity

NMD Regulations concerning stability, watertight subdivision and watertight/weathertight closing means on mobile off-shore units (No.878 of 1991-12-20)

Ballast systems NMD Regulations concerning ballast systems on mobile off-shore units (No.879 of 1991-12-20)

Emergency sources of power

NMD Regulations concerning construction of mobile offshore units (No.856 of 1987-09-04)

§ 11

Fire and explosion safety including emergency shut-down

NMD Regulations concerning precautionary measures against fire and explosion on mobile offshore units (No.227 of 1984-01-31).

Table B2 Verification basis for supplementary areas included in Drilling Unit (N)Area Reference CommentsRisk analysis NMD Regulations concerning

risk analyses for mobile off-shore units (No.1239 of 1993-12-22)

Verification of methodology ap-plied and imple-mentation of results.

Evacuation and lifesaving

Regulations concerning evacu-ation and lifesaving appliances on mobile offshore units (No.702 of 1991-09-09) NPD Facilities Regulations Section 43 on means of evacua-tion.

§ 43

Living quar-ters

NPD Facilities Regulations Section 59NMD Regulations concerning the construction and equipment of living quarters on mobile offshore units (No.2318 of 1986-12-17)

NMD regulations apply for area di-mensions, access-ways, doors, hatches, stairs, ladders, head-room

Supply of Drinking Wa-ter

NPD Facilities Regulations Section 62 on “Supply of Food Products and Drinking Water”

§ 62

Radio equip-ment

NMD Regulations concerning the installation and use of radio equipment on mobile offshore units (No.1200 of 1993-12-16).

Means of ac-cess, ladders, stairs, railings, doors, corri-dors, etc.


§ 14, 15, 16, 17

Anchoring and positioning systems

NMD Regulations concerning anchoring/positioning systems on mobile offshore units (No.857 of 1987-09-04)NPD Activity Regulations, Section 81, Positioning (with corresponding guidelines)

§ 81

Helideck NMD Regulations concerning helicopter decks on Mobile Offshore Units (No. 1240 of 1993-12-22).

Navigation NMD Regulations concerning construction of Mobile Off-shore Units (No.856 of 1987-09-04)

§ 13

Asbestos Norwegian Ministry of Local Government and Labour: Regulations relating to asbes-tos, 1991

DET NORSKE VERITAS


B 300 Limitations

301 The following aspects subject to NPD requirements arenot included in the N-notation:

— implementation of European Economic Area (EEA) lawitems (i.e. European Union (EU) directives). DNV willverify that required approvals and markings are in place,but not carry out such services under the class scope ofwork

— emergency preparedness — owner’s management system for activities onboard as well

as ashore— development of risk analyses— prevention of harmful effects of tobacco— worker protection and working environment issues (in-

cluding noise, room acoustics, vibration, lighting, indoorclimate, radiation, ergonomic aspects)

— protection against pollution — drilling plant (can be covered through DRILL (N), see

Sec.6).

Guidance note:NCS regulatory items not included in the N-notations as listed in301 may be covered through separate verification services byDNV. A Statement of Compliance will be issued following com-pletion of such services. DNV is Notified Body for all relevant EU-directives, and mayoffer CE-marking services on a world-wide basis.


C. Procedures for Classification

C 100 Procedures for classification101 Activities related to issuing and maintaining the N-nota-tion shall normally be carried out as an integral part of the ac-tivities related to the notation Drilling Unit. 102 Class procedures, document requirements, extent of cer-tification of materials and components, extent of surveys etc.shall be as required for class notation Drilling Unit.

DET NORSKE VERITAS


SECTION 3PRODUCTION AND/OR STORAGE UNIT (N)

A. Introduction

A 100 Application101 The verification methodology described in this sectionmay be applied to mobile offshore units satisfying the follow-ing criteria:

— the unit is being classed with DNV with minimum servicenotation Production and/or Storage Unit

— the unit is registered with a national maritime administra-tion

— the unit is not intended for permanent or long term assign-ment in one offshore location on the Norwegian continen-tal shelf.

A 200 Class notations201 Classed units/installations complying with the relevantrequirements of this section may, after completion of designreviews and surveys be assigned class notations:

— Production Unit (N)— Storage Unit (N)— Production and Storage Unit (N).


B 100 Supplementary requirements for areas covered by class101 The following areas covered by class shall be subjectedto supplementary verification and survey for N-notation:

— area classification — emergency shutdown and release systems— communication and alarms— stability, watertight and weathertight integrity — ballast systems— emergency sources of power— piping systems— fire and explosion safety— emergency shutdown— offloading system.


B 200 Supplementary areas covered by N-notation

201 The following additional areas not covered by Produc-tion Unit class will be subject to design verification and sur-vey as basis for assignment of the N-notation:

— risk Analysis— evacuation and lifesaving— living quarters— drinking water— radio equipment— means of access, ladders, stairs, railings, doors, corridors,

etc.— anchoring and positioning systems— helideck— navigation— asbestos.

Table B1 Verification basis for Production and/or Storage Unit (N)Area Reference CommentsArea classifi-cation

NMD Regulations for mobile off-shore units with production plants and equipment (No. 123 of 1994-02-10).

Chapter 5 §14

Emergency shutdown and release sys-tems


Chapter XI

Communica-tion and alarms


§ 17 and 18

Stability, wa-tertight and weathertight integrity

NMD Regulations concerning sta-bility, watertight subdivision and watertight/weathertight closing means on mobile offshore units (No.878 of 1991-12-20)

Ballast sys-tems

NMD Regulations concerning bal-last systems on mobile offshore units (No.879 of 1991-12-20)


NMD Regulations concerning con-struction of mobile offshore units (No.856 of 1987-09-04)

§ 11


§33

Piping sys-tems


§13

Fire and ex-plosion safety including emergency shut-down

NMD Regulations concerning pre-cautionary measures against fire and explosion on mobile offshore units (No.227 of 1984-01-31). NMD Regulations for mobile off-shore units with production plants and equipment (No. 123 of 1994-02-10).

§20 (structur-al explosion protection, §21 (Gas de-tection), §22 (Fire detec-tion), §24 (deluge sys-tems)

Offloading system


§35

DET NORSKE VERITAS



B 300 Limitations301 The following aspects subject to NPD requirements arenot included in the N-notation:





— protection against pollution — production plant (can be covered through PROD (N), see

Sec.7).




C 100 General101 Activities related to issuing and maintaining the N-nota-tion shall normally be carried out as an integral part of the ac-tivities related to the corresponding notations Production/Storage Unit. 102 Class procedures, document requirements, extent of cer-tification of materials and components, extent of surveys etc.shall be as required for class notations Production/StorageUnit.

Table B2 Verification basis for supplementary areas included in Production and/or Storage Unit (N)Area Reference CommentsRisk analysis NMD Regulations concerning

risk analyses for mobile offshore units (No.1239 of 1993-12-22)

Verification of methodolo-gy and imple-mentation of results.


Regulations concerning evacua-tion and lifesaving appliances on mobile offshore units (No.702 of 1991-09-09) NPD Facilities Regulations Sec-tion 43 on means of evacuation.

Living quarters NPD Facilities Regulations Sec-tion 59NMD Regulations concerning the construction and equipment of living quarters on mobile off-shore units (No.2318 of 1986-12-17)

NMD regula-tions apply for area dimen-sions, access-ways, doors, hatches, stairs, ladders, head-room

Supply of drink-ing water

NPD Facilities Regulations Sec-tion 62 on “Supply of Food Products and Drinking Water”

Radio equipment NMD Regulations concerning the installation and use of radio equipment on mobile offshore units (No.1200 of 1993-12-16).

Means of access, ladders, stairs, railings, doors, corridors, etc.


§ 14, 15, 16, 17

Anchoring and positioning sys-tems

NMD Regulations concerning anchoring/positioning systems on mobile offshore units (No.857 of 1987-09-04)NMD Regulations for mobile offshore units with production plants and equipment (No. 123 of 1994-02-10).

§16

NPD Activity Regulations, Sec-tion 81, Positioning (with corre-sponding guidelines)

§ 81

Helideck NMD Regulations concerning helicopter decks on Mobile Off-shore Units (No. 1240 of 1993-12-22).

Navigation NMD Regulations concerning construction of Mobile Offshore Units (No.856 of 1987-09-04)

§ 13

Asbestos Norwegian Ministry of Local Government and Labour: Regulations relating to asbestos, 1991

DET NORSKE VERITAS


SECTION 4WELL INTERVENTION UNIT (N)

A. Introduction

A 100 Application

101 The verification methodology described in this sectionmay be applied to mobile offshore units satisfying the follow-ing criteria:

— the unit is being classed with DNV with service notationWell Intervention Unit.

— the unit is registered with a national maritime administra-tion (has flag)

— the unit is not intended for permanent or long term assign-ment at one offshore location on the Norwegian Continen-tal Shelf.


201 Classed units/installations complying with the relevantrequirements of this section may, after completion of designreviews and surveys, be assigned the class notation:

— Well Intervention Unit (N)


B 100 Supplementary requirements for areas covered by class

101 The following areas covered by class shall be subjectedto supplementary verification and survey for N-notation:

— communication and alarms— stability, watertight and weathertight integrity — ballast systems— emergency sources of power— fire and explosion safety— emergency shut-down— anchoring and positioning systems— certifiable well intervention equipment.

102 Technical references for the supplementary verificationare given in Tables B1, B2 and B3.

B 200 Supplementary areas covered by N-notation201 The following additional areas not covered by Well In-tervention Unit class will be subject to design verificationand survey as basis for assignment of the N-notation:

— risk analysis— evacuation and lifesaving— living quarters

Table B1 Verification basis for Well Intervention Unit (N)Area Reference CommentsCommunica-tion and alarms


§ 17 and 18

Stability, water-tight and weath-ertight integrity

NMD Regulations concerning sta-bility, watertight subdivision and watertight/weathertight closing means on mobile offshore units (No.878 of 1991-12-20)

Ballast systems NMD Regulations concerning bal-last systems on mobile offshore units (No.879 of 1991-12-20)

Emergency sources of pow-er

NMD Regulations concerning con-struction of mobile offshore units (No.856 of 1987-09-04)

§ 11

Fire and explo-sion safety in-cluding emergency shut-down

NMD Regulations concerning pre-cautionary measures against fire and explosion on mobile offshore units (No.227 of 1984-01-31).

Anchoring and positioning sys-tems

NMD Regulations concerning an-choring/positioning systems on mo-bile offshore units (No.857 of 1987-09-04)NPD Activity Regulations, section 81, positioning (with corresponding guidelines)

Table B2 Verification basis for Well Intervention Unit (N) - equipment to be certified under notation Well Intervention Unit – IType of Equipment Reference CommentsWireline unit includ-ing power pack

NORSOK D-001/-002, Z-015

Subsea wireline lubri-cator assembly

NORSOK D-001/-002

BOP wireline shear-ram

NORSOK D-001/-002

Grease injection skid for braided line and stuffing box for slick-line

NORSOK D-001/-002

Line pressure control head

NORSOK D-001/-002

Wireline winchskids/carriers for han-dling of equipment

NORSOK CR-002

NORSOK CR-002, D-001

Umbilicals for subsea controls

NORSOK U-006

Table B3 Verification basis for Well Intervention Unit (N) - equipment to be certified under notation Well Intervention Unit – IIType of Equipment Reference CommentsSubsea coiled tubing lu-bricator

NORSOK D-001/-002

BOP coiled tubing shear-ram

NORSOK D-001/-002

Coiled tubing reel NORSOK Z-015Lifting equipment NORSOK CR-002

High pressure pumping fa-cilities (cement, well stim-ulation fluids, nitrogen)

NORSOK Z-015

Emergency disconnect package (EDP)

NORSOK D-001, D-002

Lower riser package (LRP)

NORSOK D-001, D-002

Umbilicals for subsea con-trols

NORSOK U-006

DET NORSKE VERITAS


— drinking water— radio equipment— means of access, ladders, stairs, railings, doors, corridors,

etc.— navigation— helideck— asbestos.


B 300 Limitations






— protection against pollution.

Guidance note:

NCS regulatory items not included in the N-notations as listed in301 may be covered through separate verification services byDNV. A Statement of Compliance will be issued following com-pletion of such services. DNV is Notified Body for all relevantEU-directives, and may offer CE-marking services on a world-wide basis.


302 The verification of NORSOK standards referred to inTable B2 and B3 is limited to safety related aspects.


C 100 General

101 Activities related to issuing and maintaining the N-nota-tion shall normally be carried out as an integral part of the ac-tivities related to the corresponding notation WellIntervention Unit.

102 Class procedures, document requirements, extent of cer-tification of materials and components, extent of surveys etc.shall be as required for class notation Well InterventionUnit.

103 Compliance with EU-directives carried out by inde-pendent notified bodies may be credited towards classification.

Table B4 Verification basis for supplementary areas included in Well Intervention Unit (N)Area Reference CommentsRisk analy-sis

NMD Regulations concerning risk analyses for mobile offshore units (No.1239 of 1993-12-22)

Verification of methodology and implementation of results.

Evacuation and lifesav-ing


Living quarters

NPD Facilities Regulations Sec-tion 59NMD Regulations concerning the construction and equipment of liv-ing quarters on mobile offshore units (No.2318 of 1986-12-17)

NMD regulations apply for area di-mensions, ac-cess-ways, doors, hatches, stairs, ladders, head-room

Supply of drinking water

NPD Facilities Regulations Sec-tion 62 on “Supply of Food Prod-ucts and Drinking Water”

Radio equipment

NMD Regulations concerning the installation and use of radio equip-ment on mobile offshore units (No.1200 of 1993-12-16).

Means of access, lad-ders, stairs, railings, doors, corri-dors, etc.


§ 14, 15, 16, 17

Helideck NMD Regulations concerning helicopter decks on Mobile Off-shore Units (No. 1240 of 1993-12-22).


§ 13


DET NORSKE VERITAS


SECTION 5ACCOMMODATION UNIT (N)

A. Introduction

A 100 Application101 The verification methodology described in this sectionmay be applied to mobile offshore units satisfying the follow-ing criteria:

— the unit is being classed with DNV with service notationAccommodation Unit.

— the unit is registered with a national maritime administra-tion (flagged).

— the unit is not intended for permanent or long term assign-ment at one offshore location on the Norwegian Continen-tal Shelf.

A 200 Class notations201 Classed units/installations complying with the relevantrequirements of this section may, after completion of designreviews and surveys, be assigned the class notation:

Accommodation Unit (N).


B 100 Supplementary requirements for areas covered by class101 The following areas covered by class shall be subjectedto supplementary verification and survey for N-notation:

— communication and alarms— stability, watertight and weathertight integrity — ballast systems— emergency sources of power— fire safety— emergency shut-down— anchoring and positioning systems.


B 200 Supplementary areas covered by N-notation201 The following additional areas not covered by Accommodation Unit class will be subject to design verifi-cation and survey as basis for assignment of the N-notation:

— risk Analysis— evacuation and lifesaving— living quarters— drinking water— radio equipment— means of access, ladders, stairs, railings, doors, corridors,

etc.— helideck— navigation— asbestos.


Table B1 Technical verification basis for Accommodation Unit (N)Area Reference CommentsCommuni-cation and alarms


§ 17 and 18

Stability, watertight and weather-tight integri-ty

NMD Regulations concerning stability, watertight subdivision and watertight/weathertight closing means on mobile offshore units (No.878 of 1991-12-20)

Ballast sys-tems

NMD Regulations concerning ballast systems on mobile offshore units (No.879 of 1991-12-20)


NMD Regulations concerning construc-tion of mobile offshore units (No.856 of 1987-09-04)

§ 11

Fire safety including emergency shut-down

NMD Regulations concerning precau-tionary measures against fire and explo-sion on mobile offshore units (No.227 of 1984-01-31).

Anchoring and posi-tioning sys-tems

NMD Regulations concerning anchor-ing/positioning systems on mobile off-shore units (No.857 of 1987-09-04)

NPD Activity Regulations, Section 81, Positioning (with corresponding guide-lines)

DET NORSKE VERITAS


B 300 Limitations






— protection against pollution

Guidance note:

NCS regulatory items not included in the N-notations as listed in301 may be covered through separate verification services byDNV. A Statement of Compliance will be issued following com-pletion of such services.

DNV is Notified Body for all relevant EU-directives, and mayoffer CE-marking services on a world-wide basis.



C 100 General

101 Activities related to issuing and maintaining the N-nota-tion shall normally be carried out as an integral part of the activities related to the corresponding notation Accommoda-tion Unit.

102 Class procedures, document requirements, extent of cer-tification of materials and components, extent of surveys etc.shall be as required for class notation AccommodationUnit.

Table B2 Verification basis for supplementary areas covered by Accommodation Unit (N)Area Reference CommentsRisk analysis NMD Regulations concerning risk

analyses for mobile offshore units (No.1239 of 1993-12-22)

Verification of methodology and implemen-tation of re-sults.



Living quar-ters

NPD Facilities Regulations Sec-tion 59NMD Regulations concerning the construction and equipment of liv-ing quarters on mobile offshore units (No.2318 of 1986-12-17)

NMD regula-tions apply for area dimen-sions, access-ways, doors, hatches, stairs, ladders, head-room

Supply of drinking wa-ter

NPD Facilities Regulations Sec-tion 62 on “Supply of Food Prod-ucts and Drinking Water”

Radio equip-ment

NMD Regulations concerning the installation and use of radio equip-ment on mobile offshore units (No.1200 of 1993-12-16).

Means of ac-cess, ladders, stairs, rail-ings, doors, corridors, etc.


§ 14, 15, 16, 17

Helideck NMD Regulations concerning hel-icopter decks on Mobile Offshore Units (No. 1240 of 1993-12-22).


§ 13


DET NORSKE VERITAS


SECTION 6DRILL (N)

A. Introduction

A 100 Application101 The verification methodology described in this sectionmay be applied to drilling plants on mobile offshore units be-ing classed with DNV with minimum class notations DrillingUnit (N) and DRILL.

A 200 Class notations201 Units equipped with drilling plants which have been de-signed, constructed and installed in accordance with the re-quirements of this section under the supervision of DNV willbe entitled to the class notation DRILL (N) . 202 DNV may accept decisions by national authorities as ba-sis for assigning class.


B 100 General101 Drilling systems and equipment for use on the Norwe-gian Continental Shelf shall comply with the provisions givenin the NPD regulations and referred standards in the corre-sponding NPD guidelines.

102 DNV-OS-E101(the technical basis for class notationDRILL) is listed in NPD regulations as an acceptable refer-ence standard for drilling plants on mobile facilities registeredin a national ship register.

B 200 Supplementary verification for DRILL (N) 201 In addition to complying with DNV-OS-E101 the fol-lowing regulations shall be complied with for DRILL (N) no-tation:

— NPD Facilities Regulations (2001-09-03) with Guidelines,Chapter IV-I.

B 300 Limitations301 The following aspects subject to NPD requirements arenot included in the DRILL (N)-notation:


— regularity and reliability issues— development of risk analyses— worker protection and working environment issues (in-

cluding noise, vibration, radiation, ergonomic aspects)— protection against pollution.

Guidance note:NCS regulatory items not included in the N-notations as listed in301 may be covered through separate verification services byDNV. A Statement of Compliance will be issued following com-pletion of such services.

DNV is Notified Body for all relevant EU-directives, and mayoffer CE-marking services on a world-wide basis.


C. Procedures for Verification

C 100 Design Verification

101 Documentation shall be submitted as given in DNV-RP-A202, CIBS code area 7, Drilling.

C 200 Certification of Materials and Components

201 Extent of certification of materials and components shallbe according to DNV-OS-E101, Ch. 3 Sec.3.


C 300 Survey during construction, installation and com-missioning

301 Survey during construction, installation and commis-sioning shall be carried out according to DNV-OS-E101.

DET NORSKE VERITAS


SECTION 7PROD (N)

A. Introduction

A 100 Application

101 The verification methodology described in this sectionmay be applied to production plants on mobile offshore unitsbeing classed with DNV with service notation ProductionUnit (N).


201 Units equipped with production plants complying withthe requirements of this section may, after completion of de-sign reviews and surveys be assigned the class notation:

PROD (N)


B 100 General

101 Production systems and equipment for use on the Nor-wegian Continental Shelf shall comply directly with the provi-sions given in the NPD regulations and referred standards inthe corresponding NPD guidelines.

102 Technical references for verification are given in TableB1.

B 200 Limitations201 The following aspects subject to NPD requirements arenot included in the N-notation:


— regularity and reliability issues— development of risk analyses— worker protection and working environment issues (in-

cluding noise, vibration, radiation, ergonomic aspects)— protection against pollution.



202 The verification of NORSOK and ISO standards re-ferred to in Table B1 is limited to safety related aspects.

C. Procedures for Verification

C 100 Design verification101 Documentation shall be submitted as specified in DNV-RP-A202, CIBS code area 8, Oil and Gas Production.

C 200 Certification of materials and components201 Extent of certification of materials and components shallbe according to DNV-OS-E201, Ch. 3 Sec.3.


C 300 Survey during construction, installation and com-missioning301 Survey during construction, installation and commis-sioning shall be carried out according to DNV-OS-E201.

Table B1 Verification basis for PROD(N)Area Reference CommentsProduction plants, gen-eral

NPD Facilities Regulations (2001-09-03) with Guide-lines

Chapter IV-II

Process systems NORSOK P-001NORSOK P-100

Process safety systems ISO 10418API RP 14 C

Piping Systems NORSOK L-001 NORSOK L-002

Mechanical equipment DNV-OS-D101

Technical Safety NORSOK S-001

Subsea installations NORSOK U-001 NORSOK U-002 ISO 13628

Electrical Installations DNV-OS-D201

Instrumentation and Control Systems

DNV-OS-D202

DET NORSKE VERITAS


DET NORSKE VERITAS




CHAPTER 3

CLASSIFICATION IN OPERATION

CONTENTS PAGE

Sec. 1 General Provisions for Periodical Surveys............................................................................... 27Sec. 2 Periodic Survey Extent for N-notations.................................................................................... 28

DET NORSKE VERITAS


SECTION 1GENERAL PROVISIONS FOR PERIODICAL SURVEYS

A. General

A 100 Principles and procedures

101 Periodical surveys for N-notations shall follow system-atics applied for offshore class surveys in general. For detailson principles, procedures, survey intervals etc. refer:

— DNV-OSS-101 Ch.3 for drilling units, well interventionunits, accommodation units and drilling plants

— DNV-OSS-102 Ch.3 for production units, storage unitsand production plants.

B. Class Renewal for N-notation

B 100 General

101 At certificate renewals (5-yearly intervals) a gap-analy-sis between original and latest edition of the applicable techni-cal references shall be carried out for all N-notations. Anydeviations identified shall be implemented in order for the N-notation to be renewed (ref. Ch.1 Sec.2 A501).

102 The gap analysis described in 101 shall form the basisfor the periodic survey related to the N-notation.

DET NORSKE VERITAS


SECTION 2PERIODIC SURVEY EXTENT FOR N-NOTATIONS

A. Drilling Unit (N)

A 100 Application101 The requirements in A200 apply for units with class no-tation:

Drilling Unit (N)

A 200 Annual and complete periodical surveys201 Extent of annual survey shall be as given for class nota-tion Drilling Unit in DNV-OSS-101 Ch.3 Sec.3 B.

202 Extent of complete periodical survey shall be as givenfor class notation Drilling Unit in DNV-OSS-101 Ch.3 Sec.3B and the gap-analysis described in Ch.3 Sec.1 B.

B. Production and/or Storage Unit (N)

B 100 Application101 The requirements in A200 apply for units with class no-tation:

Production Unit (N) Storage Unit (N)Production and Storage Unit (N)

B 200 Annual and complete periodical surveys201 Extent of annual survey shall be as given for class nota-tion Production and/or Storage Unit in DNV-OSS-102Ch.3 Sec.3 B.

202 Extent of complete periodical survey shall be as givenfor class notation Production and/or Storage Unit inDNV-OSS-101 Ch.3 Sec.3 B and the gap-analysis described inCh.3 Sec.1 B.

C. Well Intervention Unit (N)

C 100 Application101 The requirements in A200 apply for units with class no-tation:

Well Intervention Unit (N)

C 200 Annual and complete periodical surveys201 Extent of annual survey shall be as given forclass notation Well Intervention Unit in DNV-OSS-101Ch.3 Sec.3 C.

202 Extent of complete periodical survey shall be as givenfor class notation Well Intervention Unit in DNV-OSS-101

Ch.3 Sec.3 C and the gap-analysis described in Ch.3 Sec.1 B.

D. Accommodation Unit (N)

D 100 Application

101 The requirements in A200 apply for units with class no-tation:

Accommodation Unit (N)

D 200 Annual and complete periodical surveys

201 Extent of annual survey shall be as given for class nota-tion Accommodation Unit in DNV-OSS-101 Ch.3 Sec.3 D.

202 Extent of complete periodical survey shall be as givenfor class notation Accommodation Unit in DNV-OSS-101Ch.3 Sec.3 D and the gap-analysis described in Ch.3 Sec.1 B.

E. DRILL (N)

E 100 Application


DRILL (N)

E 200 Annual and complete periodical surveys

201 Extent of annual survey shall be as given for class nota-tion DRILL in DNV-OSS-101 Ch.3 Sec.4 D.

202 Extent of complete periodical survey shall be as givenfor class notation DRILL in DNV-OSS-101 Ch.3 Sec.4 D andthe gap-analysis described in Ch.3 Sec.1 B.

F. PROD (N)

F 100 Application


PROD (N)

F 200 Annual and complete periodical surveys

201 Extent of annual survey shall be as given for class nota-tion PROD in DNV-OSS-102 Ch.3 Sec.4 F.

202 Extent of complete periodical survey shall be as givenfor class notation PROD in DNV-OSS-101 Ch.3 Sec.4 F andthe gap-analysis described in Ch.3 Sec.1 B.

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