SERVICE SPECIFICATION DNV GL AS The electronic pdf version of this document found through http://www.dnvgl.com is the officially binding version. The documents are available free of charge in PDF format. The content of this service document is the subject of intellectual property rights reserved by DNV GL AS (“DNV GL”). The user accepts that it is prohibited by anyone else but DNV GL and/or its licensees to offer and/or perform classification, certification and/or verification services, including the issuance of certificates and/or declarations of conformity, wholly or partly, on the basis of and/or pursuant to this document whether free of charge or chargeable, without DNV GL’s prior written consent. DNV GL is not responsible for the consequences arising from any use of this document by others. DNVGL-SE-0003:2014-04 Verification for compliance with United States regulations on the outer continental shelf
49
Embed
DNVGL-SE-0003 Verification for compliance with …The service specifications lay down procedural requirements for obtaining and retaining certificates and other conformity statements
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
SERVICE SPECIFICATION
DNV GL AS
The electronic pdf version of this document found through http://www.dnvgl.com is the officially binding version. The documents are available free of charge in PDF format.
The content of this service document is the subject of intellectual property rights reserved by DNV GL AS (“DNV GL”).The user accepts that it is prohibited by anyone else but DNV GL and/or its licensees to offer and/or perform classification,certification and/or verification services, including the issuance of certificates and/or declarations of conformity, whollyor partly, on the basis of and/or pursuant to this document whether free of charge or chargeable, without DNV GL’s priorwritten consent. DNV GL is not responsible for the consequences arising from any use of this document by others.
DNVGL-SE-0003:2014-04
Verification for compliance with United States regulations on the outer continental shelf
This service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document, and is believedto reflect the best of contemporary technology. The use of this document by others than DNV GL is at the user's sole risk. DNV GL does not accept any liabilityor responsibility for loss or damages resulting from any use of this document.
FOREWORDThe service specifications lay down procedural requirements for obtaining and retaining certificates andother conformity statements to the objects in question.
Service specification – DNVGL-SE-0003:2014-04 Page 3
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
C
hanges –
curr
entCHANGES – CURRENT
GeneralThis is a new document.
On 12 September 2013, DNV and GL merged to form DNV GL Group. On the 25th of November 2013 Det
Norske Veritas AS became the 100% shareholder of Germanischer Loyd SE, the parent company of the GL
Group, and on 27th November 2013 Det Norske Veritas AS, company registration number 945 748 931,
changed its name to DNV GL AS. For further information, see www.dnvgl.com. Any reference in this
document to “Det Norske Veritas AS”, “Det Norske Veritas”, “DNV”, “GL”, “Germanischer Loyd SE”, “GL
Group” or any other legal entity name or trading name presently owned by the DNV GL Group shall therefore
2.2 Compliance matrix for floating offshore installations with (US) Notation ....17
Service specification – DNVGL-SE-0003:2014-04 Page 5
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
C
onte
ntsSec.3 Floating storage units and floating production, storage and
offloading units ........................................................................................... 21
1 Introduction ...........................................................................................211.1 Application.......................................................................................211.2 Class notations.................................................................................21
2 Compliance matrix..................................................................................212.1 Application.......................................................................................212.2 Compliance basis for FSO and FPSO Unit (US) .......................................21
Sec.4 Equivalencies and other design considerations (informative) .................... 24
1 General ...................................................................................................24
3 External impact load on hull ...................................................................24
4 Fire protection boundaries......................................................................24
5 Platform verification program by a certified verification agent ..............245.1 General ...........................................................................................245.2 Scope of assessment.........................................................................24
App. A United States Coast Guard policy letter ....................................................... 26
Service specification – DNVGL-SE-0003:2014-04 Page 6
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 1CHAPTER 1 PRINCIPLES AND PROCEDURES
SECTION 1 INTRODUCTION
1 Introduction
DNV GL Offshore Classification provides assurance that a set of requirements laid down in the rules
established by DNV GL are met during design and construction and maintained during operation of an
offshore unit or installation. Classification has gained worldwide recognition as representing an adequate
level of safety and quality.
Wherever possible DNV GL offers additional, integrated services to assist clients toward fulfilling coastal
state legislation, giving credit for classification activities.
2 General
2.1 Objective
This document outlines an alternative regulatory roadmap for owners and operators of floating offshore
installation (FOI), floating storage units (FSO) and floating production, storage and offloading units (FPSO)
wishing to engage in outer continental shelf (OCS) activities in the US Gulf of Mexico. The roadmap uses
DNV GL classification rules and services as a building block, and identifies additional United States coast
guard (USCG) design and equipment requirements for these units that are not otherwise covered by the
rules. Compliance with the appropriate DNV GL classification notations and supplemental USCG
requirements described herein, provide an equivalent level of safety to the USCG’s design and equipment
requirements prescribed in the code of federal regulations.
2.2 Scope
2.2.1 This document outlines a class based verification scheme for US compliance for offshore objects of
the following types:
— Floating Offshore Installations (FOI)
— Floating Storage Units (FSO)
— Floating Production, Storage, and Offloading Units (FPSO).
2.2.2 This document does not address regulatory requirements under the jurisdiction of the Bureau of
Safety and Environmental Enforcement (BSEE).
Guidance note:
MMS/USCG Memorandum of Agreement OCS-04, dated February 28, 2008, identifies the lead agency for systems and subsystems
associated with floating OCS facilities.
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
2.3 Structure
This document is divided into two main chapters and an appendix:
— Ch.1: General information about principles, procedures and legal provisions for meeting an equivalent
level of safety to the USCG requirements for FOIs, FSOs and FPSOs meant to operate on the US OCS.
— Ch.2: Design and equipment requirements for meeting an equivalent level of safety to the USCG
requirementsfor FOIs, FSOs and FPSOs operating in the US OCS. The chapter also includes an
informative section on equivalencies and design considerations.
— App.A: United States Coast Guard Policy letter.
Service specification – DNVGL-SE-0003:2014-04 Page 7
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 13 Definitions
3.1 Verbal forms
3.2 DNV GL definitions
3.2.1 Approval or approved: Denotes acceptance by DNV GL of documentation showing design solutions,
arrangements and/or equipment to comply with the rules.
3.2.2 Assessment: An act of assessing, appraising or evaluating a condition of a product, process or
system.
3.2.3 Certificate: A document confirming compliance with the Society’s rules or with other rules and
regulations for which the Society has been authorized to act.
3.2.4 Certification: a service confirming compliance with applicable requirements on the date that the
survey was completed.
3.2.5 Certification of Materials and Components (CMC): the activity of ensuring that materials, equipment
and components considered critical for the installation have undergone a certification process for
compliance with applicable Code and Standards,
3.2.6 Class: Class is assigned to and will be retained by units complying with applicable requirements of
the Society’s rules.
3.2.7 Classification: A service which comprises the development of independent technical standards for
offshore units – class rules and standards, and verification of compliance with the rules and standards
throughout the units’ life.
3.2.8 Classification certificate: Issued upon assignment or renewal of class. Its validity is five years
subject to successful completion of annual and intermediate surveys.
3.2.9 Client: The party having requested classification or having assumed ownership of a classed offshore
unit or installation. In cases where owners have authorised another party to operate the unit or installation
on their behalf, such party is regarded as the client.
3.2.10 Contract: The specific agreement between DNV GL and the customer. It defines the extent of
services requested by the customer, and is concerned with:
— the classification of offshore units or installations, both new buildings and in operation
— statutory work carried out on behalf of national maritime authorities
— equipment and materials.
3.2.11 Customer: Signifies the party who has requested the Society’s service.
3.2.12 Floating offshore Installation (FOI): A buoyant OCS facility securely and substantially moored so
that it cannot be moved without a special effort. This term includes tension leg platforms and permanently
moored semisubmersibles or shipshaped hulls, but does not include mobile offshore drilling units.
3.2.13 Guidance note: Contain advice which is not mandatory for the assignment or retention of class, but
with which the Society, in light of general experience, advises compliance.
3.2.14 Offshore installation: A collective term to cover any construction, buoyant or non-buoyant,
designed and built for installation at a particular offshore location.
Table 1 Verbal forms
Term Definition
Shall Verbal form used to indicate requirements strictly to be followed in order to conform to the document.
Should Verbal form used to indicate that among several possibilities one is recommended as particularly suitable,
without mentioning or excluding others, or that a certain course of action is preferred but not necessarily
required.
May Verbal form used to indicate a course of action permissible within the limits of the document.
Service specification – DNVGL-SE-0003:2014-04 Page 8
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 1
3.2.15 Owner: In the context of this Offshore Service Specification, the Owner is defined as the party
responsible for the offshore unit or installation including its operation and safety.
3.2.16 Recognised classification society: A classification society which is a full or associate member of
IACS.
4 References
4.1 General
4.1.1 This Offshore Service Specification includes references to other DNV GL documents and regulations,
codes and standards which shall be used in conjunction with the requirements given herein, for classification
of FOIs, FSOs and FPSOs in the US OCS and for partial compliance with the USCG requirements.
4.1.2 Legacy DNV documents referred to are given in Table 2.
4.1.3 Other standards and regulatory basis references for compliance as referred to herein are given in
Table 3. Only parts referred to in the main text of this document or CG-ENG Policy Letter No. 01-13 are
applicable.
Table 2 DNV GL References
Reference Title
DNV-OSS-102 Rules for Classification of Floating Production, Storage and Loading Units
DNV-OS-A101 Safety Principles and Arrangements
DNV-OS-B101 Metallic Materials
DNV-OS-C102 Structural Design of Offshore Ships
DNV-OS-C103 Structural Design of Column-Stabilised Units (LRFD method)
DNV-OS-C104 Structural Design of Self-Elevating Units (LRFD method)
DNV-OS-C105 Structural Design of TLPs (LRFD method)
DNV-OS-C106 DNV-OS-C106 Structural Design of Deep Draught Floating Units (LRFD method)
DNV-OS-C201 Structural Design of Offshore Units (WSD method)
DNV-OS-C301 Stability and Watertight Integrity
DNV-OS-C401 Fabrication and Testing of Offshore Structures
DNV-OS-D101 Marine and Machinery Systems and Equipment
DNV-OS-D201 Electrical Installations
DNV-OS-D202 Automation, Safety, and Telecommunication Systems
DNV-OS-D301 Fire Protection
DNV-OS-E201 Oil and Gas Processing Systems
DNV-OS-E301 Position Mooring
DNV-OS-E401 Helicopter Decks
Table 3 Other references
Reference Title
American National Standards
Institute (ANSI) UL 674
Standard for Electric Motors and Generators for Use in Division 1 Hazardous (Classified)
Locations, Fifth Edition (dated May 31, 2011) (“ANSI/UL 674”)
ANSI/UL 823 Standard for Electric Heaters for Use in Hazardous (Classified) Locations, Ninth Edition
including revisions through November 15, 2007 (dated October 20, 2006)
ANSI/UL 844 Standard for Luminaires for Use in Hazardous (Classified) Locations, Thirteenth Edition
(dated June 29, 2012) (“ANSI/UL 844”)
ANSI/UL 913 Standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I,
II, and III, Division 1, Hazardous Locations, Seventh Edition including revisions through
June 3, 2010 (dated July 31, 2006)
ANSI/ISA 12.12.01-2012 (UL
1604)
Non-Incendive Electrical Equipment for Use in Class I and II, Division 2 and Class III,
Division 1 and 2 Hazardous (Classified) Locations
Service specification – DNVGL-SE-0003:2014-04 Page 9
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 1
ANSI/UL 1203 Standard for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in
Hazardous (Classified) Locations, Fourth Edition including revisions through October
28, 2009 (dated September 15, 2006)
ANSI/UL 2225 Standard for Cables and Cable-Fittings for Use in Hazardous (Classified) Locations,
Third Edition February 25, 2011
ISA 12.13.01-2002 (IEC 61779-
1 through 5 Mod)
Performance Requirements for Combustible Gas Detectors
ISA 60079-29-2 (12.13.02)-
2012
Gas detectors – Selection, installation, use and maintenance of detectors for flammable
gases and oxygen
American Petroleum Institute
(API) Recommended Practice
(RP) 2FPS
Planning, Designing, and Constructing Floating Production Systems, 2011, 2nd Ed.
API RP 2T Planning, Designing, and Constructing Tension Leg Platforms,” 2010, 3rd Ed
API Standard 607 Fire Test for Quarter-turn Valves and Valves Equipped with Nonmetallic Seats”, 2010,
6th Ed
API RP 2SK Design and Analysis of Stationkeeping Systems for Floating Structures”, 2005
API RP 500 Recommended Practice for Classification of Locations for Electrical Installations at
Petroleum Facilities Classified as Class I, Division I and Division 2”, 2012
API RP 505 Recommended Practice for Classification of Locations for Electrical Installations at
Petroleum Facilities Classified as Class I, Zone 0, Zone 1 and Zone 2”, 1998
API RP 14C (R2007) Analysis, Design, Installation and Testing of Basic Surface Safety Systems on Offshore
Production Platforms”
API RP 14G Recommended Practice for Fire Prevention and Control on Open Type Offshore
Production Platforms”, 2007
API RP 14J (R2007) Recommended Practice for Design and Hazards Analysis for Offshore Production
Facilities”
ANSI/API RP 14F Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating
Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2
Locations”, 2008
ASTM International Standard
ASTM F1273 - 91(2007)
Specification for Tank Vent Flame Arresters
Canadian Standards Association
(CAN/CSA), CAN/CSA-C22.2
No. 0-M91
General Requirements - Canadian Electrical Code, Part II, July 1991, Reaffirmed 2006
CAN/CSA-C22.2 No. 157-92 Intrinsically Safe and Non-Incendive Equipment for Use in Hazardous Locations, June
2003, Reaffirmed 2006
C22.2 No. 30-M1986 Explosion-Proof Enclosures for Use in Class I Hazardous Locations, November 1988,
Reaffirmed 2007
C22.2 No. 213-M1987 Non-Incendive Electrical Equipment for Use in Class I, Division 2 Hazardous Locations,
March 1987, Reaffirmed 2008
Factory Mutual (FM) 3600 Approval Standard for Electric Equipment for use in Hazardous (Classified) Locations
General Requirements, November 1998
FM 3610 Approval Standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in
Class I, II, and III, Division 1, Hazardous (Classified) Locations, January 2010
FM 3611 Approval Standard for Non-Incendive Electrical Equipment for Use in Class I and II,
Division 2, and Class III, Divisions 1 and 2, Hazardous (Classified) Locations, December
2004
FM 3615 Approval Standard for Explosionproof Electrical Equipment General Requirements,
August 2006
FM 3620 Approval Standard for Purged and Pressurized Electrical Equipment for Hazardous
(Classified) Locations, August 2000
IEC 61892-7 Mobile and fixed offshore units- Electrical installations- Part 7: Hazardous areas”, 2007
IEC 60092-502 Electrical installations in ships –Part 502: Tankers- Special Features”, 1999
IEC 60079-29-1 Explosive atmospheres – Part 29-1: Gas detectors – Performance requirements of
detectors for flammable gases”, 2007
Table 3 Other references (Continued)
Reference Title
Service specification – DNVGL-SE-0003:2014-04 Page 10
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 1
Guidance note:
Unless noted otherwise the latest issue of the references given in [4] shall be used.
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
5 AbbreviationsThe abbreviations given in Table 4 are used in this document.
IEC 60079-29-2 Explosive atmospheres – Part 29-2: Gas detectors – Selection, installation, use and
maintenance of detectors for flammable gases and oxygen”, 2007
IEC 60092-504 Electrical installations in ships – Part: 504 Special features – Control and
instrumentation”, 2001
International Maritime
Organization Maritime Safety
Committee Circular MSC/
Circ.677
“Revised Standards for the Design, Testing and Locating of Devices to Prevent the
Passage of Flame into Cargo Tankers”, 1994, as amended
IMO Resolution A.1023(26) “Code for the Construction and Equipment of Mobile
Offshore Drilling Units,” 2009 (2009 MODU Code)
IMO Resolution A.1021(26) Code on Alerts and Indicators”, 2009
ISO 19921:2005 Ships and marine technology – Fire resistance of metallic pipe components with
resilient and elastomeric seals – Test methods
National Fire Protection
Association (NFPA) 70
National Electrical Code, 2011
NFPA Standard 496 Standard for Purged and Pressurized Enclosures for Electrical Equipment”, 2013
Table 4 Abbreviations
Abbreviation Full Name
BSEE Bureau of Safety and Environmental Enforcement
CFR Code of Federal Regulations
CVA Certified Verification Agent
DHS Department of Homeland Security
FOI Floating Offshore Installation
FPSO Floating Production Storage and Offloading
FSO Floating Storage and Offloading
GOM Gulf of Mexico
IMO International Maritime Organisation
MOU Mobile Offshore Unit
MODU Mobile Offshore Drilling Unit
MRA Mutual Recognition Agreement
MSC Maritime Safety Center
MTSA Maritime Transportation Security Act
OCS Outer Continental Shelf
OCSLA Outer Continental Shelf Lands Act
OSS Offshore Service Specification
NVIC Navigation and Vessel Inspection Circular
USCG United States Coast Guard
Table 3 Other references (Continued)
Reference Title
Service specification – DNVGL-SE-0003:2014-04 Page 11
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 2SECTION 2 REGULATORY BASIS AND LEGAL PROVISIONS
1 Regulatory basis principles
1.1 Jurisdictions
1.1.1 The USCG, within the Department of Homeland Security (DHS), has broad authority under the Outer
Continental Shelf Lands Act (OCSLA) to regulate safety of life and property on Outer Continental Shelf (OCS)
facilities and vessels engaged in OCS activities, and the safety of navigation. The USCG is also responsible
for security regulations on OCS facilities, as specified under the Maritime Transportation Security Act
(MTSA). Other regulatory agencies, such as the Bureau of Safety and Environmental Enforcement (BSEE)
also share jurisdiction over OCS activities.
1.1.2 BSEE, within the Department of Interior, exercises safety and environmental enforcement functions
related to OCS facilities, including but not limited to, developing regulations governing OCS operations,
permitting, conducting inspections and investigations, enforcing regulatory requirements, assessing
penalties, conducting research, and overseeing oil spill planning and preparedness. Although BSEE has
applicable regulations for FOIs and FPSOs, this OSS deals with USCG requirements only.
Guidance note:
BSEE have requirements for platform and structures which are covered under 30 CFR 250 Subpart I. The verification scheme for this
is covered under a platform verification program through a certified verification agent (CVA). The CVA verification scheme is defined
under § 250.915. It may be mentioned that DNV GL is an authorized CVA and have conducted this role for BSEE for recent projects
in the GOM OCS. Some aspects of this scope has been discussed in Ch.2 Sec.4. The main areas of BSEE requirements that are not
covered by this specification are primarily related to production, safety and operations for the plant/ topsides. See Ch.2 Sec.4 [5.1]
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
1.2 OCS facilities
Under OCSLA, an OCS activity is any activity associated with exploration, development, production,
transportation via pipeline, storage, or processing of mineral resources, including hydrocarbons (e.g. oil,
gas, condensate, and natural gas liquids), salt, sulphur, sand and gravel. An OCS facility is any artificial
island, installation, pipeline, or other device permanently or temporarily attached to the seabed, erected for
the purpose of exploring for, developing, producing, transporting via pipeline, storing, or processing mineral
resources from the OCS. This term does not include ships or vessels for transporting produced
hydrocarbons. The following are types of OCS facilities:
— Fixed OCS Facility: A bottom-founded OCS facility permanently affixed to the seabed or subsoil of the
OCS, including platforms, guyed towers, articulated gravity platforms, and other structures. This
definition also includes gravel and ice islands and caisson-retained islands engaged in OCS activities
used for drilling, production, or both.
— Floating OCS Facility: A buoyant OCS facility securely and substantially moored so that it cannot be
moved without special effort. This term includes tension leg platforms, spars, semi-submersibles, and
ship-shaped hulls.
— Mobile Offshore Drilling Unit (MODU): Vessels capable of engaging in drilling operations for exploring or
exploiting subsea oil, gas, or other mineral resource.
1.3 Code of federal regulations
Commercial vessel safety standards for US flagged vessels, MODUs, floating facilities, and fixed facilities
are published in Chapter 1 of Titles 33 and 46, Code of Federal Regulations (CFR). The regulations provide
detailed guidance for the design, construction and operation of these units. Table 1 lists some of the CFR
subchapters under Titles 33 and 46 that are applicable to MODUs, undocumented floating facilities and fixed
facilities on the OCS. Table 2 lists subchapter with general applicability across all units operating on the
OCS.
Service specification – DNVGL-SE-0003:2014-04 Page 12
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 2
1.4 Alternate design and equipment standards
1.4.1 The USCG has recognized that the design and technology of offshore facilities continue to advance
at a rapid pace, and that existing US regulations do not address the current state of technology. Under 33
CFR 143.120, the USCG has the authority to accept alternative design and engineering standards if an
equivalent level of safety is provided. Accordingly, the USCG published CG-ENG Policy Letter No. 01-13,
which prescribes alternate design and equipment standards for floating offshore installations (FOI) and
floating production, storage, and offloading offshore units (FPSO) located on the US OCS. In general, the
policy letter requires the floating unit to be classed by a classification society that is accepted by the USCG,
and establishes requirements to be met in addition to the classification society’s rules. A floating facility
meeting the design and construction requirements of this policy letter is considered to meet a level of safety
equivalent to that prescribed by 33 CFR 143.
1.4.2 The USCG reviews construction plans and conducts construction and periodic inspections of floating
OCS facilities to ensure compliance with regulatory requirements. In 2007, the USCG agreed to accept plan
review and inspection functions performed by DNV GL on floating OCS facilities. The Coast Guard has
subsequently accepted DNV GL plan review and inspection functions on an FPSO and an FOI project in the
GOM.
Guidance note:
The latest revision of the USCG Policy Letter “CG-ENG Policy Letter 01-13 has been included in App.A.
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
1.5 Regulatory considerations for FOIs and FPSOs Following CG-ENG Policy Letter 01-13, this document uses DNV GL rules and standards for classification of
an FOI as the baseline for compliance. Additionally, the OSS includes only those supplemental requirements
in CG-ENG Policy Letter 01-13 that are not otherwise covered by this baseline to streamline the certification
process. The DNV GL Offshore Standards together with identified international standards and USCG
regulations form the basis for meeting design, construction and equipment certification.
1.6 Equivalent design and construction considerationsUS Coast Guard acceptance of DNV GL plan review and inspections is predicated on the basis that such
actions are in accordance with the relevant class notations and additional USCG requirements described in
CG-ENG Policy Letter No. 01-13. Decisions concerning equivalencies, or resolutions of apparent conflicts in
or among the applicable requirements, will be made by the US Coast Guard.
US Coast Guard recognizes that other proposals may exist that would provide an equivalent level of safety
to that of existing regulations. In addition to CG-ENG Policy Letter No. 01-13, US Coast Guard will continue
to consider requests for alternative design and equipment standards on a “case-by-case” basis. A brief
description of a few examples are discussed in Chapter 2 Sec.4.
Table 1 Regulatory subchapters applicable to specific units
CFR Title Subchapter Applicability
33 N Outer Continental Shelf Activities
46 D Tank Vessels
46 I-A Mobile Offshore Drilling Units
Table 2 Regulatory subchapters with applicability across all units
CFR Title Subchapter Applicability
33 O Pollution
46 F Marine Engineering
46 J Electrical Engineering
46 Q Equipment, Construction and Materials: Specification and Approval
46 S Stability
Service specification – DNVGL-SE-0003:2014-04 Page 13
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 2
Guidance note:
The examples of design issues that may be subject to case-by-case consideration are passive ballast systems and vessel collision
loads based on typical supply vessel size on location. In all cases, proposed deviations from applicable requirements should be vetted
with the US Coast Guard early in the approval process.
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
2 Classification principles
2.1 General
2.1.1 Classification provides assurance that a set of requirements laid down in rules established by DNV
GL are met during design and construction, and maintained during operation of an offshore unit or
installation. Classification has gained world-wide recognition as representing an adequate level of safety and
quality.
2.1.2 Classification implies an activity, in which an offshore unit or installation is surveyed during
construction on the basis of design approval, tested before being taken into service, and surveyed regularly
during its whole operational life. The aim is to verify that the required safety standard is built-in, observed
and maintained.
2.2 Classification of FOIs and FPSOs including FSOs
The classification rules and referred standards define acceptance criteria for design, construction, survey
and testing of offshore units and installations, their marine, machinery, safety, and utility, systems /
equipment, applicable to the new building and operational phase.
Guidance note:
See service specification DNV-OSS-102 “Rules for Classificaton of Floating Prodcution, Storage and Loading Units” for details on
classification principles, scope, Notations and procedures for classification
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
2.3 Class notations
Classed units and installations will be given a class designation consisting of:
— construction symbol
— main character of class
— basic design notation
— service notation
— special equipment and systems notations (as applicable)
— special feature notations (as applicable).
2.4 Main character of class
2.4.1 The notation 1A1 will be given to self propelled offshore units with hull and marine machinery and
equipment found to be in compliance with the basic (common) requirements of the applicable DNV GL
offshore standards referred to in the rules.
2.4.2 The notation OI will be given to non-self-propelled offshore installations intended for long term
service at one offshore location with main structure, utility and safety systems found to be in compliance
with the requirements of the applicable DNV GL offshore standards referred to in the rules.
2.5 Basic design notations
The basic design notation indicates the type of structural design. The notations currently in use are given
in Table 3.
Service specification – DNVGL-SE-0003:2014-04 Page 14
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 2
2.6 Service notationsUnits or installations constructed according to DNV GL rules for offshore classification, arranged for a
particular service and found to be in accordance with the relevant requirements for such service, will be
given a corresponding service notation. Relevant notations are given in Table 4.
3 (US)-notation
3.1 General
3.1.1 FOIs, FSOs and FPSOs that are designed and constructed in accordance with the DNV GL class
notations and additional requirements in Ch.2 Sec.2 and Ch.2 Sec.3 are considered to provide a level of
safety equivalent to that provided by 33 CFR 143.120 (b), and may be assigned the class notation (US).
The assignment of the (US)-notation signifies compliance with USCG requirement for the objects covered.
Guidance note:
DNV GL’s results and conclusions related to services described in this OSS are based on DNV GL’s understanding and interpretation
of the USCG requirements, as outlined in the policy letter and experience from executing an FOI and an FPSO project in the OCS
GOM. Compliance with the (US)-notation does not represent any formal approval on behalf of USCG.
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
3.1.2 Verification basis applied for the (US)-notation will be stated in the “Appendix to Class Certificate”.
3.1.3 The following (US) notations are currently available:
— Production Unit (US) for FOIs
— Storage Unit (US) for FSOs
— Production and Storage Unit (US) for FPSOs.
Guidance note:
For Mobile Offshore Drilling Units (MODU), see DNV OSS-101, Ch. 2, Sec. 6 specifying the DRILL (US) notation.
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
3.2 Compliance matrix for OCSChapter 2 of this OSS contains a matrix of supplemental USCG requirements that are applicable to a DNV GL
classed FOI and FSO/FPSO. This matrix is based on the alternate design and engineering standards
published in CG-ENG Policy Letter 01-13, and includes only those items that are not otherwise satisfied by
meeting DNV GL classification requirements. Meeting DNV GL class scope and the listed items in Ch.2 Sec.2
Table 3 Basic design notation
Class Notation Description
Column-stabilised A structure dependent on the buoyancy of widely spaced columns for floatation and stability in all
modes of operation
Deep Draught A floating structure having a relatively deep draught to obtain high heave Eigen period avoiding
resonance responses. The structure can have single or multi-vertical columns, with or without
moonpools (e.g.SPARS & Dry Tree Semis)
Self-elevating A structure with hull of sufficient buoyancy for safe transport which is raised above sea surface on
legs supported by the sea bed during operation
Ship-shaped Monohull ship and barge structures having displacement hulls with or without propulsion
machinery
Tension Leg A buoyant structure connected to a fixed foundation by pretensioned tendons
Floating Offshore Structure not properly characterized by the above notations.
Table 4 Class notations related to service
Oil Production Vessel purpose production of oil
Oil Storage Vessel purpose storage of oil
Oil Loading Vessel purpose loading or unloading of oil
Service specification – DNVGL-SE-0003:2014-04 Page 15
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 1
Section 2
(for FOI) and Sec.3 (for FPSO and FSO) provides an equivalent level of safety to the USCG’s design and
equipment standards for such units as described in the Code of Federal Regulations.
Service specification – DNVGL-SE-0003:2014-04 Page 16
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 2
Section 1CHAPTER 2 DESIGN AND CONSTRUCTION
PROVISIONS
SECTION 1 INTRODUCTION
1 General
1.1 General
1.1.1 Unless otherwise stated, the design and construction requirements given in this chapter are
supplementary to the latest edition of relevant DNV GL class requirements.
1.1.2 Unless otherwise stated, class procedures, document requirements, extent of certification of
materials and components, extent of surveys etc. shall be required as a minimum for the corresponding
class notations. Generally the documentation requirements and extent of survey will be based on the
additional regulatory basis as listed herein.
Service specification – DNVGL-SE-0003:2014-04 Page 17
Verification for compliance with United States regulations on the outer continental shelf
1.1 ApplicationThe compliance matrix described in this section applies to Floating Offshore Installations (FOI) classed with
DNV GL with minimum service notation OI Production Unit, POSMOOR.
1.2 Class notationsClassed installations complying with the relevant requirements of this section may, after completion of
design reviews and surveys be assigned the additional class notation: Production Unit (US).
2 Compliance matrix
2.1 Application
2.1.1 Reference to be made to Ch.1 Sec.1 [4], Table 2 for the applicable DNV GL rules and offshore
standards to meet the assigned class requirements for FOIs on the OCS.
2.1.2 The objective of the compliance matrix listed below is to specify a list with supplemental USCG
requirements that are not otherwise required or covered by DNV GL classification for the stated FOI
notation. Accordingly, the compliance matrix is a subset of the USCG requirements listed in enclosure (1)
to CG-ENG Policy Letter 01-13.
2.2 Compliance matrix for floating offshore installations with (US) NotationThe following areas will be subject to additional design and equipment requirements as basis for assignment
of the (US)-notation for FOI’s.
Table 1 Structures and stability
Area Short DescriptionUSCG Policy
Letter, Encl. 1
Structural Standards FOI/FPSO (exc. TLP): API RP 2FPS, 2011, 2nd Ed.
TLP: API RP 2T, 2010, 3rd Ed.
Guidance Note:DNV GL Class requirements through DNV-OS-C101 to C503 Standards provides an accepted equivalent level of structural safety.
Item 4 and 5
Cranes Cranes shall be certified, inspected, tested and designed in accordance with 46
CFR 107.258, 46 CFR 107.259, 46 CFR 107.260, and 46 CFR 108.601, or other
standards determined by the Commandant (CG-ENG-3) to provide an
equivalent level of safety.Guidance NoteDNV Standard for Certification 2.22 – Lifting Appliances provides an equivalent level of safety.
Item 12
Stability The operating manual shall include sufficient stability information for operation. Item 19
Stability, Spar and Deep
Draft Caisson FOIs
Ref. Policy Letter, Enclosure 1, item 22. Requirements a to h.
Item 22
Stability TLPs Ref. Policy Letter, Enclosure 1, item 23. Requirements a to g. Item 23
Stability, general In applying the requirements of the 2009 IMO MODU Code:
— The term “Administration” means the Commandant (CG-ENG), USCG,
except in paragraph 3.3.2, where it means the Commanding Officer, Marine
Safety Center (MSC).
— The term “should” means “shall” and all “recommendations” are
“requirements.”
— For purposes of paragraph 3.2.1, the free surface of liquids in tanks shall be
determined according to the IMO 2008 Intact Stability Code.
— Paragraphs 3.2.4.2, 3.2.8, and 3.3.3 do not apply.
Item 24
Service specification – DNVGL-SE-0003:2014-04 Page 18
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 2
Section 2
Metocean Study Metocean study in accordance with API Bulletin 2INT-MET required, unless the
unit is capable of disconnecting from its mooring and riser systems.
Item 25
Sliding Watertight
Doors
Sliding watertight doors shall comply with 46 CFR 174.100 (e) and (f). Item 26
Catwalks, floors and
openings
1) Perimeters shall have guardrails or wire mesh fences at least 42 in (1 m)
high.
2) Guardrails shall comply with 33 CFR 143.110.
Item 45
Stairways Stairways shall have at least two courses of rails. Top course/handrail min. 36
in (0.9 m) above front tread.
Item 47
Table 2 Arrangement
Area Short DescriptionUSCG Policy
Letter, Encl. 1
Helicopter Landing
Facilities
Design in accordance with:
— 2009 IMO MODU Code Ch. 13, or
— 46 CFR 108.231 to 46 CFR 108.241.
Guidance NoteDNV GL additional Class Notation HELDK-SH meets and exceeds these requirements.
Flame or explosion proof lighting fixtures in enclosed hazardous locations
shall have:
— At least two lighting branch circuits.
— Light for relamping any de-energized circuit.
— Light switch outside hazardous location.
Item 30
Ventilation requirements
in hazardous locations
Ref. Policy Letter, Enclosure 1, Item 31 (a).
Guidance NoteThe cargo pump room may be classified as Zone 1 if the following three conditions are met per API 505: the space is continuously ventilated at least 20x/ min; loss of ventilation shall be alarmed in a manned space; and combustible gas detection installed.
Item 31
General Emergency Alarm
System
Manually operated call points in the following locations:
— in any main control room
— at any drilling console
— at the feeder distribution panel
— in any navigation bridge
— in a routinely occupied space that is as far as practicable from all other
Service specification – DNVGL-SE-0003:2014-04 Page 20
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 2
Section 2
Obstruction lights and
warning devices
The unit shall meet applicable requirements in 33 CFR part 67. Item 44
Table 5 Lifesaving equipment
Area Short DescriptionUSCG Policy
Letter, Encl. 1
Lifesaving equipment 1) The equipment shall be USCG type approved, or approved under the
MRA Agreement.
2) The FOI/FPSO shall comply with:
— 46 CFR 108.503, and
— 2009 IMO MODU Code Ch. 10.
Item 32 and
33
3) Lifeboats: 95 kg (210 lbs) per person, 530 mm (21 in) minimum seat
width.
4) Dedicated approved rescue boat/launching appliance instead of dual
approved life/rescue boat.
Item 33 (a)
Table 6 Fire safety
Area Short DescriptionUSCG Policy
Letter, Encl. 1
Structural Fire Protection Except for H-60, all structural fire protection materials shall be USCG type
approved, or approved under the MRA Agreement.
Item 34
Fire extinguishing — Shall be USCG type approved.
— Fire hoses and associated equipment shall comply with 46 CFR
108.425.
— Fixed low expansion foam systems installed on cargo decks shall
comply with 46 CFR 34.20.
— Collapsible hoses are acceptable on open deck fire hydrants, and in
enclosed columns, pontoons and machinery spaces.
Item 35
Fire Detection Shall be USCG type approved. Item 35
Portable and semi-
portable fire extinguishers
Shall be USCG type approved and comply with 46
CFR 108.491 to 108.496.
Item 36
Fire-fighter’s outfits Fire-fighter’s outfits and self-contained breathing apparatus shall comply
with 46 CFR 108.497.
Item 37
Means of escape — Shall comply with 46 CFR 108.151.
— Solid steel decking in at least one escape route from accommodation
areas to a primary means of escape.
— Doors with provisions for locking shall comply with SOLAS II-2/
13.3.2.6.
Item 38
Marking Marking of fire protection equipment in accordance with 46 CFR 108.621-
635 and 108.637.
Item 39
H-rated fire boundaries
for deckhouses
Minimum H-60 rating on all normally occupied deckhouses, incl. temporary
buildings, facing process areas, wellheads, produced oil storage tanks and
similar hazards, extending minimum 10 feet to the sides.
Item 40
Table 4 Electrical (Continued)
Area Short DescriptionUSCG Policy
Letter, Encl. 1
Service specification – DNVGL-SE-0003:2014-04 Page 21
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 2
Section 3SECTION 3 FLOATING STORAGE UNITS AND FLOATING
PRODUCTION, STORAGE AND OFFLOADING UNITS
1 Introduction
1.1 ApplicationThe compliance matrix described in this section may be applied to floating storage units (FSO) and floating
production, storage and offloading units (FPSO) units satisfying the following criteria:
— The FSO unit is classed with DNV GL with minimum class notations 1A1 Storage Unit POSMOOR
OFFLOADING.
— The FPSO unit is classed with DNV GL with minimum class notations 1A1 Production and Storage
Unit POSMOOR OFFLOADING.
— The unit will be registered with a national maritime administration (flagged).
Guidance note:
USCG’s current position is to require a valid tanker certificate for evacuation during a hurricane situation. Therefore such FPSOs /
FSOs require a detachable/ disconnectable turret which can be relatively quickly disconnected in the event of a hurricane or extreme
weather. In such situation the vessel will adopt the tanker mode and move out to seek shelter.
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
1.2 Class notationsClassed units complying with the relevant requirements of this section may, after completion of design
reviews and surveys be assigned the additional class notation:
— Storage Unit (US)
— Production and Storage Unit (US)
Guidance note:
For Floating Storage units (FSOs) the compliance matrix below shall be applied as for FPSOs, but without the production related
requirements.
---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---
2 Compliance matrix
2.1 Application
2.1.1 Reference to be made to Ch.1 Sec.1 [4], Table 2 for the applicable DNV GL rules and offshore
standards to meet the assigned class notation requirements for FPSOs and FSOs in the OCS.
2.1.2 The objective of this compliance matrix is to specify a list with supplemental USCG requirements that
are not otherwise required by DNV GL classification for a stated notation for an FPSO. Accordingly, the
matrix is a subset of the USCG requirements listed in enclosure (2) to CG-ENG Policy Letter 01-13.
2.2 Compliance basis for FSO and FPSO Unit (US)The following areas will be subject to additional design and equipment requirements as basis for assignment
of the (US)-notation for FSOs and FPSOs.
Service specification – DNVGL-SE-0003:2014-04 Page 22
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 2
Section 3Table 1 Structures and stability
Area Short DescriptionUSCG Policy
Letter, Encl. 2
Intact and damage
stability
FPSOs shall comply with the following requirements applicable for surface
units:
— MARPOL Annex I regulations 27 and 28 (with the exception of
paragraph 6);
— 2009 MODU Code Sections 3.6 and 3.7.
In applying the requirements from the 2009 MODU Code:
— The term “Administration” means the Commandant (CG-ENG), USCG.
— The term “should” means “Shall”.
— The term “recommendations” means “requirements”.
Item 9
Demonstration of safe
disconnection procedure
FPSOs that employs a disconnectable system for severe weather evasion
shall demonstrate that the disconnect procedure does not jeopardize the
stability.
Item 10
Catwalks, floors and
openings
Perimeters shall have guardrails or wire mesh fences at least 1 meter (39
inches) high. If guardrails are used:
— They shall comply with 46 CFR 108.217 to 108.223;
— If a toe board is installed, one of the intermediate courses may be
omitted and the other course placed approximately halfway between
the top of the toe board and the top course.
Item 25
Table 2 Piping systems
Area Short DescriptionUSCG Policy
Letter, Encl. 2
Tank arrangement Oil shall not be stored in any tank closer to the stern than 2.0 m. Item 2 (g)
Pollution prevention The FPSO shall comply with MARPOL Annex I regulations 23, 29 and 30
(paragraphs 1, 4 and 7 only).
Item 2 (h)
Inert gas system in cargo
tanks
A fixed inert gas system shall be installed irrespective of the vessels
deadweight. Compliance with SOLAS II-2/4.5.5 required, except that a dry
type water seal shall not be used.
Item 2 (j)
Ballast and produced oil
piping
Ballast and produced oil piping systems shall meet the requirements in 33
CFR 157.11(g)(1).
Item 2 (m)
PV Valves Pressure vacuum relief valves shall meet the requirements in 46 CFR
162.017 or ISO 15364:2007.
Item 2 (n)
Oil transfer hose Produced oil transfer hoses shall comply with the requirements in 33 CFR
154.500 and 33 CFR 156.170.
Item 2 (o)
Table 3 Hazardous locations
Area Short DescriptionUSCG Policy
Letter, Encl. 2
Hazardous area locations Paragraph (12) and (13) of the Policy Letter Enclosure 2 shall be used to
identify hazardous locations.
Item 11
See Policy Letter for Zone 0 and Zone 1 definitions. Item 12
(a),(b)
Service specification – DNVGL-SE-0003:2014-04 Page 23
Verification for compliance with United States regulations on the outer continental shelf
DNV GL AS
Chapte
r 2
Section 3
Table 4 Electrical and instrumentation
Area Short DescriptionUSCG Policy
Letter, Encl. 2
Emergency Generator
Loads
The following items shall be on the emergency consumers list:
— essential marine control, alarm, and monitoring systems
— the marine manual and automatic safety shutdown systems
— the automatic electric power management system
— the control system for the position thrusters for the thruster-assisted
mooring system, if installed
— each critical production/process control/import/export, alarm, and
monitoring system necessary to prevent a process upset
— a process safety control system to shut down the flow of hydrocarbon
from all wells and process systems
— control systems for all equipment that is required for emergency
operations
— the diving equipment, if equipped, that is dependent on the unit for its
power source
— quick disconnect systems that are used to stop all process flow to the
floating installation automatically, without leaks from process fluids.
Item 4
Detection of conditions for
disconnection
The FPSO shall be able to detect conditions that require disconnection from
the turret.
Item 8
ATEX Certification Electrical equipment in hazardous areas is subject to plan review and
approval by the MSC.
ATEX certification is not accepted by the USCG.
Item 11 refer
to Item 27 in
encl 1
Electrical equipment in
hazardous locations
Equipment shall be tested and listed by an independent laboratory accepted
by the USCG under 46 CFR Part 159. Link to accepted independent
laboratories: http://cgmix.uscg.mil/eqlabs/.
Item 11 refer
to item 28 in
encl 1
Lightning circuits in
hazardous locations
Flame or explosion proof lighting fixtures in enclosed hazardous locations
shall have:
— At least two lighting branch circuits.
— Light for relamping any de-energized circuit.
— Light switch outside hazardous location.
Item 11refer
to item 30 in
encl 1
Electrical swivel
certification
Hydrocarbon product electrical swivels shall be tested and listed or certified
by a USCG accepted independent laboratory in accordance with 46 CFR Part
159.
Item 18
Table 5 Fire safety
Area Short DescriptionUSCG Policy
Letter, Encl. 2
Fire extinguishing system
for power generation unit
A USCG approved fixed fire extinguishing system shall be installed for the
power generation unit enclosure.
Item 3 (a) (iv)
Structural fire protection All structural fire protection materials shall be USCG type approved. Item 20
Fire Extinguishing — Shall be USCG type approved.
— Fire main and all associated components shall comply with 46 CFR
95.10.
— Fixed low expansion foam systems installed on cargo decks shall
comply with 46 CFR 34.20.
— Collapsible hoses are acceptable on open deck fire hydrants, and in
enclosed columns, pontoons and machinery spaces.
Item 21
Fire Detection Shall be USCG type approved. Item 21
Fire-fighter’s outfits Fire-fighter’s outfits and self-contained breathing apparatus shall comply
with 46 CFR 96.35.
Item 22
Wellhead protection If applicable, wellheads (i.e. production areas containing oil and gas risers,
export lines and associated shut down valves) with a maximum shut-in
pressure exceeding 600 psi shall be enclosed within minimum A-0 barriers
to protect any escape routes, lifeboat embarkation stations, fire
extinguishing equipment and vital systems needed for power management