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DNV GL AS
RULES FOR CLASSIFICATION
High speed and light craftEdition December 2015
Part 1 General regulations
Chapter 2 Class notations
FOREWORD
DNV GL rules for classification contain procedural and technical requirements related to obtainingand retaining a class certificate. The rules represent all requirements adopted by the Society asbasis for classification.
© DNV GL AS December 2015
Any comments may be sent by e-mail to rules@dnvgl.com
If any person suffers loss or damage which is proved to have been caused by any negligent act or omission of DNV GL, then DNV GL shallpay compensation to such person for his proved direct loss or damage. However, the compensation shall not exceed an amount equal to tentimes the fee charged for the service in question, provided that the maximum compensation shall never exceed USD 2 million.
In this provision "DNV GL" shall mean DNV GL AS, its direct and indirect owners as well as all its affiliates, subsidiaries, directors, officers,employees, agents and any other acting on behalf of DNV GL.
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CURRENT – CHANGES
This is a new document.
The rules enter into force 1 July 2016.
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CONTENTS
Current – changes...................................................................................................... 3
Section 1 Class notations........................................................................................... 61 General................................................................................................... 6
1.1 Introduction.........................................................................................6
Section 2 Construction symbol and Main Class Notation............................................ 81 Construction symbols............................................................................. 8
1.1 General...............................................................................................82 Main Class Notation................................................................................8
2.1 General...............................................................................................82.2 Applicability of Rules for High Speed and Light Craft.................................8
Section 3 Ship type notations.................................................................................. 101 Introduction..........................................................................................10
1.1 General............................................................................................. 102 Passenger craft.....................................................................................103 Car ferry............................................................................................... 114 Cargo craft............................................................................................115 Crew boats........................................................................................... 126 Patrol boats.......................................................................................... 127 Small service craft................................................................................128 Naval and naval support vessels.......................................................... 139 Naval landing craft............................................................................... 14
9.1 General............................................................................................. 14
Section 4 Additional Class Notations........................................................................151 Introduction..........................................................................................15
1.1 General............................................................................................. 152 Structural strength and integrity..........................................................153 Propulsion, power generation and auxiliary systems............................ 154 Navigation and manoeuvring................................................................ 175 Equipment and design features............................................................ 176 Environmental protection and pollution control.................................... 177 Living and working conditions..............................................................188 Survey arrangements............................................................................199 Naval.................................................................................................... 21
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Section 5 Service area..............................................................................................221 Service area notation........................................................................... 22
1.1 General............................................................................................. 22
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SECTION 1 CLASS NOTATIONS
1 General
1.1 Introduction
1.1.1 All vessels Classed with the Society may be assigned
— construction symbol— main Class Notation— service area notation— ship type notation— additional Class Notation
as applicable.
1.1.2 Class Notations are assigned in order to determine applicable rule requirements for assignment andretention of Class. Applicable Class Notations are given in Sec.2 to Sec.5.
1.1.3 Class Notations are either mandatory or optional. The mandatory Class Notations are indicated in thetables given in Sec.2 to Sec.5.
1.1.4 In accordance with Pt.1 Ch.1 Sec.1 [2.3.3] optional Class Notations from the Society's other rule setsmay, upon special consideration, be assigned to a vessel complying with those rules.
1.1.5 Class Notations may be given one or more qualifiers which are supplementary symbols used to identifyvariants of the Class Notation or a design parameter. Qualifiers include e.g. levels of complexity and/orspecial requirements or limitations, and may be assigned additional requirements.Qualifiers follow immediately after a Class Notation and are indicated in parenthesis. Multiple qualifiers areseparated by comma and space.
Guidance note:A typical Class Notation string may look as:
✠1A HSLC R2 Passenger E0
---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e---
1.1.6 Class Notations and qualifiers are shown in bold.
1.1.7 The Tables in Sec.2 to Sec.5 include the following information
— Name of Class Notation— Indication of Class Notation being mandatory— Reference to rule design requirements— Reference to rule survey requirements for Fleet in Service (FiS). NA indicates that requirements are
covered by Main Class Notation (See Pt.7 Ch.1)— Qualifiers as relevant.— Purpose of Class Notation— Application, giving information on when and where the Class Notation can be applied and/or in what
condition a Class Notation is mandatory
1.1.8 Examples of typical Class Notations are shown in Table 1.
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Table 1 Examples of Class Notations
Example 1 Example 2 Example 3
Construction symbol [2.2] ✠ ✠ ✠
Main Character of Class [2.3] 1A HSLC or LC 1A HSLC or LC 1A HSLC or LC
Service Restriction R1 R2 R3
Ship type notations Passenger craft Patrol Service
Additional Class Notations:
Related to structural strength and integrity ELT
Related to propulsion, power generation andauxiliary systems E0 E0 E0
Related to navigation and manoeuvring NAUT-HSC
Related to equipment and design features Windfarm
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SECTION 2 CONSTRUCTION SYMBOL AND MAIN CLASS NOTATION
1 Construction symbols
1.1 General
1.1.1 The construction symbol ✠ will be assigned to vessels built under the supervision of the Society.
1.1.2 The construction symbol will be assigned to vessels built under the supervision of a classificationsociety recognized by the Society and later assigned Class with the Society. For such vessels the ClassNotations which the Society considers to have the equivalent intent will be assigned.
1.1.3 Vessels other than those described in [1.1.1] and [1.1.2] will not be assigned a construction symbolwhen classed with the Society.
2 Main Class Notation
2.1 General
2.1.1 The notations 1A HSLC or 1A LC, as applicable, will be assigned to vessels with hull, machinery,systems and equipment found to be in compliance with applicable Rule requirements as given in Pt.2, Pt.3and Pt.4.
2.1.2 The notations 1A HSLC or 1A LC, as applicable, will also be assigned to vessels designed andconstructed in accordance with the rules of another classification society, and later assigned Class with theSociety.
2.2 Applicability of Rules for High Speed and Light Craft
2.2.1 A Light Craft, LC, is defined as a craft with a full load displacement not more than:
∆= (0.13 L B) 1.5 (tonnes)
∆ = maximum permissible displacement (tonnes)L = overall length of the underwater watertight envelope of the rigid hull excluding appendages, at or
below the design water line in the displacement mode with no lift or propulsion machinery active (m)B = full breadth at L/2 (m).
Craft with displacements in excess of the above requirement shall be classified in accordance with additionalrequirements to strength and watertight integrity as stipulated for each ship type notation.
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2.2.2 A High Speed Light Craft, HSLC, is defined as a craft, that in addition to fulfilling [1.2.3], is capable ofa maximum speed in knots equal to or exceeding:
V = 7.16 ∆ 0.1667
V = the speed (knots)∆ = the displacement corresponding to the design waterline (tonnes).
Guidance note:The above criteria is in compliance with the application for the IMO HSC Code. The factor is adjusted only for the alternative units.
---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e---
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SECTION 3 SHIP TYPE NOTATIONS
1 Introduction
1.1 General
1.1.1 All high speed, light craft and naval service craft shall, in addition to the main class, have one of theship type notations defined in Table 1 to Table 8. The ship type notations define which requirements of Pt.3and Pt.4 that are applicable for a specific ship type.
1.1.2 Certain ship type notations are mandatory based on e.g.:
— type of cargo— number of passengers— the ability to execute special operations
2 Passenger craftTable 1 Ship type notation for passenger ships
Class Notation Qualifier Purpose Application
Passenger craftMandatory:
Yes
Design Requirements:
Pt.5 Ch.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Carriage of passengers More than 12 passengers
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3 Car ferryTable 2 Ship type notation for car ferry
Class Notation Qualifier Purpose Application
A Carriage of passengers andvehicles.
More than 12 passengersand vehicles on encloseddecks
B Carriage of passengers andvehicles.
More than 12 passengersand vehicles on decksthat are ventilatingfreely. Requires operatingrestriction R2 or stricter
FerryMandatory:
Yes
Design Requirements:
Pt.5 Ch.2
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4 C Carriage of passengers and
vehicles.
More than 12 passengersand vehicles on weatherdecks only. Requiresoperating restriction R3 orstricter
4 Cargo craftTable 3 Ship type notation for dry cargo crafts
Class Notation Qualifier Purpose Application
A Carriage of cargo in enclosedhold
CargoMandatory:
Yes
Design Requirements:
Pt.5 Ch.3
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
BCarriage of cargo onopen deck and carriage ofcontainers
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5 Crew boatsTable 4 Ship type notation for crew boats
Class Notation Qualifier Purpose Application
CrewMandatory:
Yes
Design Requirements:
Pt.5 Ch.4
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None>
Carriage of workers andcargo between shoreand offshore installationsand similar types oftransportation
6 Patrol boatsTable 5 Ship type notation for patrol boats
Class Notation Qualifier Purpose Application
PatrolMandatory:
No
Design Requirements:
Pt.5 Ch.6
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None>
Crafts not intended to carryordinary cargo, does notcarry ordinary passengersnor take part in commercialtrade.
Crafts intended for pilot,police, custom, rescue, fire,ambulance, navy, coast-guard, pollution control andpatrol services.
7 Small service craftTable 6 Ship type notation for small service crafts
Class Notation Qualifier Purpose Application
ServiceMandatory:
No
Design Requirements:
Pt.5 Ch.5
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Carriage of cargo and up to12 workers or passengers
Crafts with load line lengthunder 24 meters
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8 Naval and naval support vesselsTable 7 Ship type notations for naval crafts
Class Notation Qualifier Purpose Application
NavalMandatory:
Yes
Design Requirements:
Pt.5 Ch.13 Sec.3FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Naval operationsNaval flagged vessels andadministered by a nationalnaval administration
Must be combined with oneor the Ship Type notations
Naval operations and Navalsupport operations
Naval flagged vessels andadministered by a nationalnaval administration
HullNaval requirements forarrangements, loads and hullstrength
STAB Naval requirements forstability
SystemNaval requirements forpiping, machinery, electrical,control and monitoring
Fire Naval requirements for firesafety
EVAC Naval requirements for safeevacuation
RADHAZ Naval requirements forradiation hazards
EMCNaval requirementsfor electromagneticcompatibility
Naval supportMandatory:
Yes
Design Requirements:
Pt.5 Ch.13 Sec.3
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
SAMNaval requirementsfor storage rooms forammunition
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9 Naval landing craft
9.1 GeneralTable 8 Ship type notation for Naval landing craft
Class Notation Qualifier Purpose Application
Naval landing craftMandatory:
Yes
Design Requirements:
HSLC/NC Pt.5 Ch.13 Sec.3
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None>
For vessels intended tocarry troops, vehicles andequipment combined withbeach landing operations.
Vessels flying a navalflag and administeredby a national navaladministration andLpp<40 m
9.1.1 The Class Notation Naval support or LC Naval support may be combined with another ship typenotation.
9.1.2 Any combinations of qualifiers for Naval support are allowed. For example Naval support(Hull,STAB, Fire)
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SECTION 4 ADDITIONAL CLASS NOTATIONS
1 Introduction
1.1 General
1.1.1 Vessels that comply with the requirements provided in Pt.6 may be assigned corresponding additionalClass Notation as indicated in Table 1 to Table 11.
1.1.2 Certain additional Class Notations are mandatory for certain types of installations, features, orequipment installed; (e.g. Battery power, FC) where the Society has found that these constitute possiblehazards to personnel and/or the vessel. Mandatory additional Class Notations are indicated in the tablesreferred below.Additional Class Notations made mandatory for different ship types are also referred in Pt.5.
2 Structural strength and integrityTable 1 Additional Class Notations related to structural strength and integrity
Class Notation Qualifier Purpose Application
ELTMandatory:
No
Design Requirements:
Pt.6 Ch.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
AProvide basis for evaluationof craft with an extendedlifetime
Crafts with a target designlife more than 20 years
3 Propulsion, power generation and auxiliary systemsTable 2 Additional Class Notations related to propulsion, power generation and auxiliary systems
Class Notation Qualifier Purpose Application
Battery powerMandatory:
Yes
Design Requirements:
SHIP Pt.6 Ch.2 Sec.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None>Battery installations forpropulsion and otherservices
Mandatory where batterypower is used as propulsionpower during normaloperations
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Class Notation Qualifier Purpose Application
E0Mandatory:
No
Design Requirements:
Pt.6 Ch.2FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Unattended machinery space
FCMandatory:
Yes
Design Requirements:
SHIP Pt.6 Ch.2 Sec.3
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Fuel cell installations
Mandatory where thefuel cell power is used foressential, important oremergency services
Gas fuelledMandatory:
Yes
Design Requirements:
SHIP Pt.6 Ch.2 Sec.5
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Gas fuelled engineinstallations Mandatory when installed
LFL fuelledMandatory:
Yes
Design Requirements:
SHIP Pt.6 Ch.2 Sec.6
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Low flashpoint liquid fuelledengine installations Mandatory when installed
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4 Navigation and manoeuvringTable 3 Additional Class Notations related to navigation and manoeuvring
Class Notation Qualifier Purpose Application
HSC
Basic bridge design,instrumentation, locationof equipment and bridgeprocedures with bridgedesign and bridge controlconsole.
Compliance with SOLASand IMO Res. MSC. 97(73)
NAUTMandatory:
No
Design requirements:
Pt.6 Ch.3
FiS survey requirements:
Pt.7 Ch.1 Sec.6 [XY] NAV
Basic bridge design,instrumentation, locationof equipment and bridgeprocedures with bridgedesign and bridge controlconsole.
Compliance with SOLASV/15 and IMO MSC/Circ.982 on ergonomiccriteria for bridgeequipment and layout
5 Equipment and design featuresTable 4 Additional Class Notations related to equipment and design features
Class Notation Qualifier Purpose Application
<None> Helicopter deck
S Additional requirements tovessel safety
H Additional requirements tohelicopter safety
F Additional requirements tohelicopter facility
HELDKMandatory:
No
Design Requirements:
Pt.6 Ch.4 Sec.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
CAA-N
Helicopter facility has beenevaluated for additionalrequirements specified bythe Norwegian Civil AviationAuthorities
WindfarmMandatory:
No
Design Requirements:
Pt.6 Ch.4 Sec.2
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None>Vessels intended for serviceon offshore installation,including windfarms
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6 Environmental protection and pollution controlTable 5 Additional Class Notations related to environmental protection and pollution control
Class Notation Qualifier Purpose Application
RecyclableMandatory:
No
Design Requirements:
Pt.6 Ch.5 Sec.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Inventory of HazardousMaterials
<None>Arrangements for controllingand limiting operationalemissions and discharges
Design
Additional designrequirements for protectionagainst accidents and forlimiting their consequences
Clean
Mandatory:
No
Design requirements:
SHIP Pt.6 Ch.7 Sec.2
FiS survey requirements:
SHIP Pt.7 Ch.1 Sec.6,
Tier III
Compliance with the NOxemission requirements ofTier III according to MARPOLAnnex VI, Regulation 13.
Shore powerMandatory:
No
Design Requirements:
Pt.6 Ch.5 Sec.2
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Electric shore connections
7 Living and working conditions
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Table 6 Additional Class Notations related to living and working conditions
Class Notation Qualifier Purpose Application
NMandatory:
No
Design Requirements:
Pt.6 Ch.6 Sec.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None> Noise level limitation
SVMandatory:
No
Design Requirements:
Pt.6 Ch.6 Sec.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
Structural vibrationslimitation
MVMandatory:
No
Design Requirements:
Pt.6 Ch.6 Sec.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
Machinery vibrationrequirements
NVMandatory:
No
Design Requirements:
Pt.6 Ch.6 Sec.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
Requirements to noiselevel and structural andmachinery vibrations.
Applicable whenrequirements to N, SV andMV are satisfied
8 Survey arrangements
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Table 7 Additional Class Notations related to survey arrangement
Class Notation Qualifier Purpose Application
HMONMandatory:
No
Design Requirements:
Pt.6 Ch.7 Sec.1
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
<None>
Hull monitoring at variouslocations to reduce the needfor internal survey throughincreased focus on hullstress warnings.
TMONMandatory:
No
Design Requirements:
Pt.6 Ch.7 Sec.2
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
Tail shaft monitoring enablesoperators to continouslyobservce and assess thecondition of the shaft(s)which may extend intervalbetween tail shaft surveys/shaft withdrawal
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9 NavalTable 8 Additional Class Notations related to naval vessels
Class Notation Qualifier Purpose Application
NAUTMandatory:
No
Design requirements:
Pt.6 Ch.8 Sec 1
FiS survey requirements:
Pt.7 Ch.1 Sec.6
Navy
Basic requirements tobridge design, bridgeinstrumentation, andworkstation arrangement
All naval flagged vesselsand administeredby a national navaladministration, except:
— Vessel of less than 24meters LOA
— Submarines
1Protection against nuclear,biological and chemicalthreats on naval crafts
A non-citadel craft withoutNBC filter. A NBC shelterproviding a degree ofprotection against ingressof NBC agents can beestablished by isolatinga part of the craft fromthe outside environmentand adjoining unprotectedcompartments.
NBCMandatory:
No
Design requirements:
Pt.6 Ch.8 Sec. 2
FiS survey requirements:
Pt.7 Ch.1 Sec.6
2Protection against nuclear,biological and chemicalthreats on naval crafts
A citadel can be establishedor is permanently installedby providing fresh airthrough NBC filters,facilitating operations oflong duration in a NBCcontaminated area with apressurised citadel.
H
Applicable to naval surfacevessels, where the hullgirder strength shall meetthe residual strengthrequirements of specified(contractual) combatdamage
S
Applicable to naval vesselsthat need extended systemredundancy, due to specified(contractual) combatdamage.
CBTMandatory:
No
Design Requirements:
Pt.6 Ch.8 Sec.2
FiS survey requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1Sec.3, and Pt.7 Ch.1 Sec.4
SHApplicable to vessels thatmeets requirements toqualifiers –S and -H
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SECTION 5 SERVICE AREA
1 Service area notation
1.1 General
1.1.1 The service area notation R followed by a number or a letter will be assigned to all high speed, lightcraft and naval surface craft.The service area restrictions, given in nautical miles and representing the maximum distance from nearestport or safe anchorage, are given in Table 1. For the various service area notations the restrictions arerelated to the zones, areas and seasonal periods as defined in the International Convention on Load Lines,1966, Annex II.The service area notation RE is limited to enclosed waters such as fjords, ports, rivers and lakes.The service area restrictions as related to the assigned service area notation will be included in the “Appendixto the Class Certificate”.
Table 1 Service area restrictions
Seasonal zones (nautical miles)Service area notations
Winter Summer Tropical
R0 250 No restrictions* No restrictions*
R1 100 200 300
R2 50 100 200
R3 20 50 100
R4 5 10 20
R5 1 2 5
R6 0.2 0.3 0.5
*) Unrestricted service notation is not applicable for craft falling within the scope of the HSC Code, i.e. ship typenotations Passenger, Ferry or Cargo
1.1.2 Modified requirements related to the various service area notations are given in the relevant sectionsof the rules. The modifications will affect:
— design hull girder loads— design pressures on shell, weather decks, superstructures and deckhouses— anchoring and mooring equipment— arrangement— stability
1.1.3 The Flag Administration, the domestic requirements of which are being applied under the provisionof Pt.1 Ch.1 Sec.2 [1.3.7] (local trade), shall be indicated in parentheses after the service area notation, byusing lower-case country codes in accordance with ISO 3166, (e.g. R2 (nor), should the Flag Administrationbe Norway or R2 (usa) should the Flag Administration be U.S.A. etc.).
1.1.4 Other service restrictions or operational limits included in the design assumptions for a vessel will bestated in the “Appendix to the Class Certificate”, and/or on special signboards.
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