RULES FOR CLASSIFICATION
Ships
Edition July 2018
Part 1 General regulations Chapter 2 Class notations
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DNV GL AS FOREWORD
DNV GL rules for classification contain procedural and technical requirements related to obtaining and retaining a class certificate. The rules represent all requirements adopted by the Society as basis for classification.
© DNV GL AS July 2018
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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. CHANGES – CURRENT t n e r
This document supersedes the January 2018 edition of DNVGL-RU-SHIP Pt.1 Ch.2. r
Changes in this document are highlighted in red colour. However, if the changes involve a whole chapter, u c
section or subsection, normally only the title will be in red colour. -
s
Changes July 2018, entering into force 1 January 2019 e g
Topic Reference Description n a Update of name and qualifiers Sec.3 [11] Diving support vessel class notation is changed to DSV. New h of a ship type notation for qualifiers Ready and OCS are introduced. C
vessels for special operations 2 Cyber security Sec.4 [6] Introducing new additional class notation Cyber secure related r
to mitigation of cyber risks. e t
New class notation for SOx Sec.4 [8] New additional class notation ER (emission reduction) related p
and NOx cleaning systems to environmental protection and pollution control. a
(Scrubbers and selective h
catalytic reduction systems C
(SCR)) 1
Survey requirements for Sec.4 [4] Added reference to requirements for fleet in service. t r fleet in service (FiS) for class a
notation Walk2work P
Maintenance of rules for ore Sec.4 Table 1 The additional class notation Holds n may be empty is carriers removed for ships with the additional class notation OC(M) .
Underwater inspection in lieu Sec.4 Table 10 New additional class notation UWILD for permanently moored of dry docking vessels is introduced.
Revision of requirements for Sec.4 Table 5 New qualifier ES (enhanced safety) for the REGAS class notation REGAS notation is introduced, focusing on enhanced safety features.
Revision of individual route Sec.4 Table 5 Updated and enhanced additional class notation RSCS+ for calculation route specific container stowage on long haul as well as costal voyages based on weather forecasts. The sign + is added to differentiate the enhanced notation.
Editorial corrections
In addition to the above stated changes, editorial corrections may have been made.
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 3 Class notations
DNV GL AS CONTENTS s t n e Changes – current...... 3 t n o
Section 1 Class notations...... 6 C
1 General...... 6 2
1.1 Introduction...... 6 r e t
Section 2 Construction symbol and main class notation...... 8 p a
1 Construction symbols...... 8 h
1.1 General...... 8 C
1
2 Main class notation...... 8 t
2.1 General...... 8 r a Section 3 Ship type notations...... 9 P 1 Introduction...... 9 1.1 General...... 9 2 Dry cargo ships...... 9 3 Container ships...... 11 4 RO/RO ships...... 11 5 Passenger ships...... 12 6 Oil tankers...... 12 7 Chemical tankers...... 15 8 Liquefied gas tankers...... 16 9 Compressed gas tankers...... 18 10 Offshore service vessels...... 18 11 Vessels for special operations...... 19 12 Non-self-propelled vessels...... 24 13 Fishing vessels...... 25 14 Naval vessels...... 25
Section 4 Additional class notations...... 26 1 Introduction...... 26 1.1 General...... 26 2 Structural strength and integrity...... 26 3 Propulsion, power generation and auxiliary systems...... 32 4 Navigation and manoeuvring...... 37 5 Cargo operations...... 39 6 Equipment and design features...... 42 7 Cold climate...... 48
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 4 Class notations
DNV GL AS 8 Environmental protection and pollution control...... 50 s 9 Living and working conditions...... 52 t n
10 Survey arrangements...... 53 e t
11 Naval...... 56 n o 11.1 General...... 56 C
2
Section 5 Service area...... 57 r
1 Service area notation...... 57 e t
1.1 General...... 57 p a
Section 6 Descriptive notation...... 58 h C 1 General...... 58 1
1.1 ...... 58 t r
1.2 ...... 58 a
1.3 ...... 58 P 1.4 ...... 58
Changes – historic...... 59
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DNV GL AS SECTION 1 CLASS NOTATIONS 1
n o
1 General i t c 1.1 Introduction e S
1.1.1 All vessels classed with the Society may be assigned 2
— construction symbol r e
— main class notation t — ship type notation p a
— additional class notation h
— service area notation C — descriptive notation 1
as applicable. t r
1.1.2 Class notations are assigned in order to determine applicable rule requirements for assignment and a retention of class. Applicable class notations are given in Sec.2 to Sec.6. P
1.1.3 Class notations are either mandatory or optional. The mandatory class notations are indicated in the tables given in Sec.2 to Sec.5.
1.1.4 In accordance with Ch.1 Sec.1 [2.2.5] optional class notations from the Society's other rule books may, 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 identify variants of the class notation or a design parameter. Qualifiers typically denote differences in levels of complexity and/or special requirements or limitations, and may be assigned additional requirements. Qualifiers follow immediately after a class notation and are indicated in parenthesis. Multiple qualifiers are separated by comma and space.
1.1.6 Class notations and qualifiers are shown in bold. See Table 1 for examples of class notations and qualifiers.
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 design requirements* — reference to survey requirements for fleet in service (FiS)* — qualifiers as relevant — purpose of class notation — application, giving additional information on when and/or where a class notation can be applied and/or under what condition a class notation is mandatory. * NA indicates no requirements.
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 6 Class notations
DNV GL AS 1.1.8 Examples of typical class notations are shown in Table 1. 1
Table 1 Examples of class notations n o i
Example 1 Example 2 Example 3 t c
Construction symbol (see Sec.2 [1]) ✠ ✠ ✠ e S
Main class notation (see Sec.2 [2]) 1A 1A 1A 2
Offshore service r Ship type notations (see Sec.3) Container ship Tanker for oil vessel(Supply) e t
Additional class notations (see Sec.4): p a
Related to structural strength and integrity CSR Strengthened(DK) h C
Related to propulsion, power generation and
E0 E0 E0 1
auxiliary systems t
Related to navigation and manoeuvring NAUT(AW, ICS) NAUT(OSV) r a
Related to cargo operation RSCS+ Bow loading P
Related to equipment and design features DG LFL HELDK(S, H) SF
Ice(1A) Related to cold climate Ice(E) Winterized(Basic)
Related to environmental protection and Clean Clean(Design) pollution control
Related to survey arrangement BIS TMON ESP TMON
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DNV GL AS SECTION 2 CONSTRUCTION SYMBOL AND MAIN CLASS NOTATION 2
n o
1 Construction symbols i t c 1.1 General e S
✠ 2
1.1.1 The construction symbol will be assigned to vessels built under the supervision of the Society. r
1.1.2 The construction symbol will be assigned to vessels built under the supervision of a classification e t
society recognized by the Society and later assigned class with the Society. For such vessels the class p
notations which the Society considers to have the equivalent intent will be assigned. a h
1.1.3 Vessels other than those described in [1.1.1] and [1.1.2] will not be assigned a construction symbol C when classed with the Society. 1
t r
2 Main class notation a P 2.1 General
2.1.1 The main class notation 1A 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.3 and Pt.4. Requirements given by ship type notations and additional class notations may supersede the requirements given in Pt.2, Pt.3 and Pt.4. In such cases the main class notation 1A will still be assigned.
2.1.2 The main class notation 1A will also be assigned to vessels designed and constructed in accordance with the rules of another classification society, and later assigned class with the Society.
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 8 Class notations
DNV GL AS SECTION 3 SHIP TYPE NOTATIONS 3
n o
1 Introduction i t c 1.1 General e S
1.1.1 Vessels that comply with requirements defined in Pt.5 may be given a ship type notation as indicated 2
in Table 1 to Table 13 of this section. r e t 1.1.2 A vessel may be assigned more than one ship type notation provided that the respective requirements p
are met. a h
1.1.3 Certain ship type notations are mandatory based on e.g.: C
— type of cargo 1
— number of passengers t — the ability to execute special operations. r a P 2 Dry cargo ships
Table 1 Ship type notations for dry cargo ships
Class notation Qualifier Purpose Application
General dry cargo ship Mandatory: Mandatory for ships yes occasionally carrying Design requirements: Carriage of unitized and dry dry cargo in bulk, unless
Multi-purpose dry cargo ship Mandatory: Mandatory for ships yes occasionally carrying dry Carriage of unitized and dry Design requirements:
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DNV GL AS Class notation Qualifier Purpose Application 3
Bulk carrier Mandatory for sea-going n
single deck ships with o Mandatory: i cargo holds of single t yes and/or double side skin c Design requirements: construction, with a double e
Pt.5 Ch.1 bottom, hopper side tanks
and top-wing tanks fitted 2
FiS survey requirements:
below the upper deck, and r Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 intended for the carriage of e Sec.3, and Pt.7 Ch.1 Sec.4 solid bulk cargoes t p
Ore carrier a
Mandatory for sea-going h Mandatory:
single deck ships having C yes two longitudinal bulkheads 1
Design requirements: Carriage of ore cargo in dry and a double bottom
Pt.5 Ch.1 bulk throughout the cargo r
region, and intended for a FiS survey requirements: carrying ore cargoes in the P Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 centre hold only Sec.3, and Pt.7 Ch.1 Sec.4
X carrier Mandatory: Mandatory unless ship type yes notation Bulk carrier is assigned. X denotes Design requirements: Specialised for the carriage
Great lakes bulk carrier Mandatory: Designed to operate within yes the limits of the Great Design requirements: Lakes and St. Lawrence
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DNV GL AS 3 3 Container ships n o
Table 2 Ship type notation for container ships i t c
Class notation Qualifier Purpose Application e S
Container ship 2
Mandatory: r yes Ships primarily intended for e
the carriage of containers. t Design requirements:
Pt.5 Ch.2 on inner bottom may be a
FiS survey requirements: accepted in special cases. h C
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1
Sec.3, and Pt.7 Ch.1 Sec.4 1
t r a
4 RO/RO ships P
Table 3 Ship type notations for RO/RO ships
Class notation Qualifier Purpose Application
RO/RO ship Mandatory: no Loading and unloading the Design requirements:
Car carrier Mandatory: no Design requirements:
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DNV GL AS 3 5 Passenger ships n o
Table 4 Ship type notations for passenger ships i t c
Class notation Qualifier Purpose Application e S
Passenger ship 2
Mandatory: r yes e Design requirements: t
Pt.5 Ch.4 a
FiS survey requirements: h C
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1
Sec.3 and Pt.7 Ch.1 Sec.4 1
t
Ferry More than 12 passengers r Carriage of passengers and A and vehicles on enclosed a Mandatory: vehicles decks P yes
Design requirements: More than 12 passengers Pt.5 Ch.4 and vehicles on weather Carriage of passengers and B decks only. Requires FiS survey requirements: vehicles service area restriction R2 Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 or stricter Sec.3 and Pt.7 Ch.1 Sec.4
6 Oil tankers
Table 5 Ship type notations for oil tankers
Class notation Qualifier Purpose Application
Tanker for oil Mandatory: yes Design requirements:
Tanker for oil products Mandatory: yes Design requirements: Carriage of oil products in For carriage of all oil
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DNV GL AS Class notation Qualifier Purpose Application 3
n
Barge for oil o i Mandatory: t c
yes e S
Design requirements:
Pt.5 Ch.11 r e
FiS survey requirements: t Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 p a Sec.3 and Pt.7 Ch.1 Sec.4 h
Barge for oil products C
Mandatory: 1
yes t r
Design requirements: a Carriage of oil products in For carriage of all oil
Bulk carrier or tanker for oil Mandatory: yes Design requirements: Carriage of dry bulk cargo Pt.5 Ch.1 Sec.3
Tanker for oil products with flashpoint above 60°C Mandatory:
yes Carriage of all types of oil For carriage of all types of Design requirements:
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DNV GL AS Class notation Qualifier Purpose Application 3
Tanker for asphalt/bitumen n o
Mandatory: i t
yes c
Design requirements: e
Carriage of liquid asphalt/ For carriage of liquid S
Pt.6 Ch.1 Sec.12 FiS survey requirements: r e
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 t Sec.3 and Pt.7 Ch.1 Sec.4 p a
Barge for oil products with h
flashpoint above 60°C C
Mandatory: 1
yes t Carriage of all types of oil For carriage of all types of r
Design requirements: a
Barge for asphalt/bitumen Mandatory: yes Design requirements: Pt.5 Ch.1 Sec.2 Carriage of liquid asphalt/ For carriage of liquid
Bulk carrier or Tanker for oil products Mandatory: yes Design requirements: Carriage of dry bulk cargo
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DNV GL AS 3 7 Chemical tankers n o
Table 6 Ship type notations for chemical tankers i t c
Class notation Qualifier Purpose Application e S
Tanker for C 2
Mandatory: r yes Chemical carriers according Carriage of specific type of e
to the IBC or BHC code. t Design requirements: liquid chemical. “C” denotes
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1
Sec.3 and Pt.7 Ch.1 Sec.4 1
t
Tanker for chemicals r
Mandatory: a P yes Chemical carriers with cargos listed in the IBC Design requirements:
Barge for chemicals Mandatory: yes Barge for chemicals with Design requirements: cargos listed in the IBC Pt.5 Ch.6
Barge for C Mandatory: yes Chemical carriers according Carriage of specific type of Design requirements: to the IBC or BHC code. liquid chemical. “C” denotes
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 15 Class notations
DNV GL AS Class notation Qualifier Purpose Application 3
Tanker for chemicals with n
flashpoint above 60°C o i Mandatory: Carriage of non-flammable t c liquid chemicals or liquid Chemical carriers built in yes e chemicals with flashpoint compliance with Pt.5 Ch.6 Design requirements:
Pt.5 Ch.6 not heated to within 15°C or Sec.1 [1.3.7] 2
FiS survey requirements: more of its flashpoint r e
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 t
Sec.3 and Pt.7 Ch.1 Sec.4 p a
Barge for chemicals with h
flashpoint above 60°C C
Mandatory: 1
Carriage of non-flammable
yes t liquid chemicals or liquid Barge for chemicals built in r Design requirements: chemicals with flashpoint compliance with Pt.5 Ch.6
Pt.5 Ch.6 above 60°C and which are Sec.1 [1.3.6] and Pt.5 Ch.6 P not heated to within 15°C or Sec.1 [1.3.7] Pt.5 Ch.11 more of its flashpoint FiS survey requirements: Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 Sec.3 and Pt.7 Ch.1 Sec.4
8 Liquefied gas tankers
Table 7 Ship type notation for liquefied gas tankers
Class notation Qualifier Purpose Application
Tanker for liquefied gas Mandatory: yes Design requirements:
Tanker for c Tanker for c will be Mandatory: considered in each case, yes Carriage of specific type of depending on the nature of Design requirements: liquified gas. “c” denotes the the cargo to be carried.
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DNV GL AS Class notation Qualifier Purpose Application 3
Barge for liquefied gas n o
Mandatory: i t
yes c
Design requirements: e S
Pt.5 Ch.7
Pt.5 Ch.11 FiS survey requirements: r e
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 t Sec.3 and Pt.7 Ch.1 Sec.4 p a
Barge for c h C
Mandatory: Barge for c will be
yes considered in each case, 1
depending on the nature of t Design requirements: Carriage of specific type of liquified gas. “c” denotes the the cargo to be carried. r Pt.5 Ch.7
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DNV GL AS 3 9 Compressed gas tankers n o
Table 8 Ship type notation for compressed gas tankers i t c
Class notation Qualifier Purpose Application e S
Tanker for compressed
natural gas 2
Mandatory: r e
yes t
Carriage of compressed p Design requirements:
Pt.5 Ch.8 h
FiS survey requirements: C
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 1
Sec.3 and Pt.7 Ch.1 Sec.4 t r a P 10 Offshore service vessels
Table 9 Ship type notations for offshore service vessels
Class notation Qualifier Purpose Application
Offshore service vessel For vessels providing Mandatory:
Supply Platform supply services
Towing of floating objects, Compliance with Anchor handling of anchoring AHTS handling, Towing and equipment, and platform Supply supply services
Maintenance and service of Windfarm maintenance offshore wind farms
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DNV GL AS Class notation Qualifier Purpose Application 3
Standby vessel Rescue operations and n
no c
Design requirements: e
Rescue operations and S Pt.5 Ch.9 standby services in harsh S 2
FiS survey requirements: weather conditions, e.g. the r Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 North Sea e
Sec.3 and Pt.7 Ch.1 Sec.4 t
p a h C
11 Vessels for special operations 1
t
Table 10 Ship type notations for vessels for special operations r a
Class notation Qualifier Purpose Application P
Crane vessel Mandatory: no Design requirements: Pt.5 Ch.10 Sec.2
Cable laying vessel Mandatory: no Design requirements:
Pipe laying vessel Mandatory: no Design requirements:
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DNV GL AS Class notation Qualifier Purpose Application 3
Semi–submersible heavy n
transport vessel o i
Mandatory: t Designed to load and c
yes unload deck cargo by e Carriage of heavy unitized Design requirements:
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 t
Sec.3 and Pt.7 Ch.1 Sec.4 p a
Equipped with a saturation h
diving system classified by C SAT the Society in compliance 1
with 0375 - Diving systems Diving systems t r
DSV a Equipped with a surface P Mandatory: diving system classified by no Surface the Society in compliance Design requirements: with DNVGL-RU-OU-0375 Diving systems Pt.5 Ch.10 Sec.6 FiS survey requirements: Vessel prepared for installation of diving Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 Ready system with the supported Sec.3 and Pt.7 Ch.1 Sec.4 interfaces listed in the appendix of class
IACS classed saturation OCS diving system installed as per Pt.5 Ch.10 Sec.6 [1.8]
Seismic vessel Requirements to hull
Well stimulation vessel Mandatory: no Design requirements:
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DNV GL AS Class notation Qualifier Purpose Application 3
Fire fighter
Mandatory: i Fire fighting with active t
no protection, giving it the c
Design requirements: I capability to withstand e
higher heat radiation loads S
Pt.5 Ch.10 Sec.9 from external fires 2
FiS survey requirements: Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 Fire fighting with active and r passive protection, giving it e Sec.3 and Pt.7 Ch.1 Sec.4 t the capability to withstand p
the higher heat radiation a I+
loads also when the active h
protection fails. In addition, C the vessel incorporates a 1
longer throw length t
Continuous fire fighting of r large fires and cooling of a P II structures. May be assigned in combination with Fire fighter (I)
Continuous fire fighting of large fires and cooling of structures with larger water pumping capacity and more III comprehensive fire fighting equipment than for II. May be assigned in combination with Fire fighter (I)
Vessels not specifically built for fire fighting purposes Capability Fire fighting capability but haveing fire fighting capabilities in addition to their regular service
Icebreaker Mandatory: no Design requirements:
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 21 Class notations
DNV GL AS Class notation Qualifier Purpose Application 3
Tug n o
Mandatory: i t
no c
Design requirements: e Towing of other vessels by
FiS survey requirements: Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 r e
Sec.3, Pt.7 Ch.1 Sec.4 and Pt.7 t
Ch.1 Sec.6 [34] p a
Escort tug Steering and manoeuvring h
Mandatory: operations of other vessels C F by towlines
no 1 Escort rating numbers based Design requirements: t
on full scale test r
Pt.5 Ch.10 Sec.11 a
Steering and manoeuvring P FiS survey requirements: operations of other vessels One of the qualifiers F, N Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 N by towlines or O is mandatory Sec.3, Pt.7 Ch.1 Sec.4 and Pt.7 Escort rating numbers based Only one of the qualifiers F, Ch.1 Sec.6 [34] on numerical calculations N or O may be assigned
Steering and manoeuvring operations of other vessels by towlines O Escort rating numbers established by another classification society
FS, t, v are escort rating numbers, where:
FS indicates maximum transverse steering pull in ton, exerted by the escort tug on the stern of the Mandatory qualifier assisted vessel Maximum two sets of FS, t, v t is the time in seconds escort rating numbers may required for the change of be assigned the tug's position from one side to the corresponding opposite side v is the speed in knots at which this pull may be attained
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DNV GL AS Class notation Qualifier Purpose Application 3
Dredger
Mandatory: i t
no c
Design requirements: e S
Pt.5 Ch.10 Sec.12 Suction Suction dredging 2
FiS survey requirements: Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 r e
Sec.3 and Pt.7 Ch.1 Sec.4 t p
Pusher a
Mandatory: h C
no
Design requirements: 1
FiS survey requirements: a P Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 Sec.3 and Pt.7 Ch.1 Sec.4
Slop reception vessel Mandatory: no Floating facilities for Design requirements:
Reefer Mandatory: no Carriage of refrigerated dry cargo and fruit and Design requirements:
Refrigerated fruit juice carrier Mandatory: yes Carriage of refrigerated fruit
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DNV GL AS Class notation Qualifier Purpose Application 3
Tanker for potable water n o
Mandatory: i t
no c
Design requirements: Carriage of potable water in e
FiS survey requirements: Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 r e
Sec.3 and Pt.7 Ch.1 Sec.4 t p a h
12 Non-self-propelled vessels C
1
Table 11 Ship type notations for non-self-propelled vessels t r
Class notation Qualifier Purpose Application a P Barge
Pontoon Mandatory: yes Design requirements: No means of self-
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DNV GL AS 3 13 Fishing vessels n o
Table 12 Ship type notations for fishing vessels i t c
Class notation Qualifier Purpose Application e S
Fishing vessel
Mandatory: Arranged for carriage of fish r no
S in bulk, with shifting boards e Design requirements: in cargo holds t p
Pt.5 Ch.12 Fishing vessel complying a FiS survey requirements: with the requirements of h
N C the Norwegian Maritime Pt.7 Ch.1 Sec.2, Pt.7 Ch.1
Sec.3 and Pt.7 Ch.1 Sec.4 Directorate (NMD) 1
t
Stern trawler
Mandatory: a
Arranged for carriage of fish P no S in bulk, with shifting boards Design requirements: in cargo holds
Pt.5 Ch.12 Fishing vessel complying FiS survey requirements: with the requirements of N Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 the Norwegian Maritime Sec.3 and Pt.7 Ch.1 Sec.4 Directorate (NMD)
14 Naval vessels
Table 13 Ship type notations for naval and naval support vessels
Class notation Qualifier Purpose Application
Naval Mandatory: yes Naval flagged vessels and Design requirements:
Naval landing craft Mandatory:
yes For vessels intended to Naval flagged vessels and Design requirements: carry troops, vehicles and administered by a national
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DNV GL AS SECTION 4 ADDITIONAL CLASS NOTATIONS 4
n o
1 Introduction i t c 1.1 General e S
1.1.1 Vessels that comply with the requirements provided in Pt.6 may be assigned corresponding additional 2
class notation as indicated in Table 1 to Table 11 of this section. r e t 1.1.2 Certain additional class notations are mandatory for certain types of installation, features, or p
equipment installed; (e.g. Bow loading, Battery(Power), Inert) where the Society has found that these a
constitute possible hazards to personnel and/or the vessel. Mandatory additional class notations are indicated h
in the tables referred below. C
Additional class notations made mandatory for different ship types are also referred in Pt.5. 1
t r
2 Structural strength and integrity a P Table 1 Additional class notations related to structural strength and integrity
Class notation Qualifier Purpose Application
Grab Mandatory for ships with Mandatory: class notation HC(M), and yes Strengthened inner bottom Mandatory for ships with for grab loading and freeboard length LLL > Design requirements: 1-X unloading with grab mass X 150 m and carrying solid Pt.6 Ch.1 Sec.1 bulk cargoes having a ≥20 t 3 FiS survey requirements: density ≥ 1.0 t/m , unless Grab(2-X) or Grab(3-X) NA is assigned
Strengthened inner bottom, and lower part of transverse 2-X bulkhead for grab loading and unloading with grab mass X ≥ 20 t
Strengthened inner bottom, Mandatory for Ore carrier and lower part of transverse with class notation OC(M) bulkhead and longitudinal or OC(H) 3-X bulkhead for grab loading Mandatory for ships with and unloading with grab class notation HC(A), mass X ≥ 20 t HC(B)or HC(B*)
Strengthened Weather deck hatch covers Mandatory: HA strengthened for heavy cargo no Weather deck strengthened Design requirements: DK for heavy cargo Pt.6 Ch.1 Sec.2 FiS survey requirements: Inner bottom strengthened IB NA for heavy cargo
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 26 Class notations
DNV GL AS Class notation Qualifier Purpose Application 4
Hot Mandatory for ships with n o
Mandatory: notation Tanker for i Cargo tanks designed for asphalt/bitumen and t
yes c high temperature cargo with other oil tankers intended Design requirements: T e C a maximum design cargo for the carriage of liquid S
Pt.6 Ch.1 Sec.12 temperature of TC in °C cargo at a temperature higher than 80°C at 2 FiS survey requirements: NA atmospheric pressure r e t HL p
Mandatory: a Tanks or holds strengthened h no for heavy liquid, where C
Design requirements: ρ ρ denotes the maximum 3 density in t/m in specified 1 Pt.6 Ch.1 Sec.3
cargo tanks t
FiS survey requirements: r NA a P HC Strengthened to carry dry bulk cargoes of density ≥ Mandatory: HC with one of qualifiers A 1.0 t/m3 with specified holds yes A, B, B*, C or M are empty at scantling draught, mandatory for: Design requirements: in addition to HC(B) Pt.6 Ch.1 Sec.4 — General dry cargo Strengthened to carry dry ship designed for FiS survey requirements: bulk cargoes of density carriage of solid bulk B 3 NA ≥ 1.0 t/m with all holds cargoes, with L ≥ 150 loaded, in addition to HC(C) m, having minimum five cargo holds Strengthened to carry dry bulk cargoes of density — Multi-purpose dry B* ≥ 1.0 t/m3 with any hold cargo ship designed empty at scantling draught for carriage of solid bulk cargoes, with L ≥ 150 Strengthened to carry dry m, having minimum five C bulk cargoes of density < cargo holds 3 1.0 t/m — Bulk carrier without CSR notation, with L ≥ Designed to carry dry bulk 150 m M cargoes as described in the loading manual
Maximum cargo density Mandatory: yes Mandatory for ships with class notation BC(A), Design requirements: Designed for a maximum BC(B), HC(A), HC(B) or ρ Pt.6 Ch.1 Sec.4 and IACS cargo density ρ in t/m3 HC(B*) designed for a Common Structural Rules Pt.1 maximum cargo density < Ch.1 Sec.1 3.0 t/m3 FiS survey requirements: NA
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DNV GL AS Class notation Qualifier Purpose Application 4
No MP n o
Mandatory: i t
no c May be applied to ships Design requirements: Ships not designed for e with class notation BC(A),
Ch.1 Sec.1 r
FiS survey requirements: e t
NA p a
Block loading h
Mandatory: C
no 1
Design requirements: May be applied to ships t
Ships intended to operate in r
OC Strengthened for loading Mandatory for ships with and unloading in multiple class notation Ore carrier Mandatory: M ports, in addition to OC(H) with L ≥ 150 m, unless yes notation OC(H) is assigned Design requirements: Designed to carry ore Mandatory for ships with Pt.6 Ch.1 Sec.5 cargoes in seagoing class notation Ore carrier H FiS requirements: homogeneous loading with L ≥ 150 m, unless NA conditions OC(M) is assigned
Holds n may be empty Mandatory: Mandatory for ships with yes Holds may be empty at class notation BC(A), Design requirements: maximum draught where n HC(A), HC(M), if alternate
Plus Mandatory:
no Extended scope of fatigue Design requirements:
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DNV GL AS Class notation Qualifier Purpose Application 4
CSA Fatigue strength control in n
accordance with CSA(FLS1) o Mandatory: i
1 and ultimate strength t
no c check based on direct load Design requirements: calculations e S
Pt.6 Ch.1 Sec.7 Fatigue strength control in 2
FiS requirements: accordance with CSA(FLS2) NA 2 and ultimate strength r e
check based on direct load t
calculations p a
Fatigue strength control h
FLS1 based on direct load C calculations 1
Additional fatigue strength t control based on direct r FLS2 load calculations with a P increased scope compared to CSA(FLS1)
RSD Mandatory for vessels with Mandatory: class notation Container ship having one of the yes following characteristics: Design requirements: — novel design Pt.6 Ch.1 Sec.8 Structure strength is verified — complex structural FiS requirements:
COAT-PSPC The X denotes: Mandatory: B requirements for Additional requirements no dedicated seawater ballast for corrosion prevention of tanks of all types of vessels Design requirements: tanks and spaces/areas for C requirements for cargo Pt.6 Ch.1 Sec.9 newbuildings. The notation oil tanks of crude oil provides compliance with FiS survey requirements: X tankers SOLAS Ch.II-1 Pt.A-1, Pt.7 Ch.1 Sec.6 Reg. 3-2 and IMO Res. D requirements for double MSC.215(82), SOLAS side-skin spaces of bulk Ch.II-1, Reg. 3-11 and IMO carriers Res. MSC.288(87) V requirements for void spaces of bulk carriers and oil tankers
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 29 Class notations
DNV GL AS Class notation Qualifier Purpose Application 4
COLL n o
Mandatory: The qualifier X shall be an i integral number between t no Hull side structures specially c 1 and 6 and denotes the Design requirements: X evaluated for collision e amount of strengthening of impacts S Pt.6 Ch.1 Sec.10 the side structures against
collisions 2 FiS survey requirements: NA r e t WIV p
Mandatory: a Fatigue and ultimate hull h no girder strength verified C
Design requirements:
of wave induced vibrations 1 Pt.6 Ch.1 Sec.11
(Whipping and Springing) t
FiS survey requirements: r NA a P
Guidance note: L is the rule length as defined in Pt.3 Ch.1 Sec.4.
---e-n-d---o-f---g-u-i-d-a-n-c-e---n-o-t-e---
Table 2 Additional class notations related to vessels in accordance with IACS common structural rules only
Class notation Qualifier Purpose Application
CSR Mandatory: Mandatory for: yes Bulk carrier with L ≥ 90 m and cross section in Design requirements: Vessel designed and built accordance with CSR Pt.1 IACS Common Structural Rules
BC Strengthened to carry dry Mandatory for ships Mandatory: bulk cargoes of density ≥ with class notation Bulk A 1.0 t/m3 with specified holds carrier with L ≥ 150 m, yes empty at scantling draught, unless BC(B) or BC(C) is Design requirements: in addition to BC(B) assigned IACS Common Structural Rules Mandatory for ships Pt.1 Ch.1 Sec.1 Strengthened to carry dry with class notation Bulk bulk cargoes of density FiS survey requirements: B carrier with L ≥ 150 m, ≥ 1.0 t/m3 with all holds NA unless BC(A) or BC(C) is loaded, in addition to BC(C) assigned
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DNV GL AS Class notation Qualifier Purpose Application 4
Mandatory for ships n
Strengthened to carry dry with class notation Bulk o i
C bulk cargoes of density< 1.0 carrier with L ≥ 150 m, t t/m3 unless BC(A) or BC(B) is c assigned e S
Grab 2 Mandatory: r
yes e Strengthened for grab Mandatory for ships with t
Design requirements: p X loading and discharging with class notation BC(A) or IACS Common Structural Rules grab mass X ≥ 20 t BC(B) a Pt.1 Ch.1 Sec.1 h C
FiS survey requirements: 1
NA t r a P
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 31 Class notations
DNV GL AS 4 3 Propulsion, power generation and auxiliary systems n o
Table 3 Additional class notations related to propulsion, power generation and auxiliary systems i t c
Class notation Qualifier Purpose Application e S
Battery Mandatory for vessels
where the battery power is 2 Mandatory:
Battery installations for used as the main source of r yes Power propulsion and other power, or when the battery e t Design requirements: services is used as a redundant p
Pt.6 Ch.2 Sec.1 source of power for class a
notations h FiS survey requirements: C
Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 Mandatory for vessels
Sec.3 and Pt.7 Ch.1 Sec.4 where the battery 1
installation is used as an t Battery installations used additional source of power r
Safety as an additional source of a and has an aggregate
power P capacity exceeding 50kWh (excluding Lead Acid and NiCd batteries)
E0 Mandatory: no Design requirements:
ECO Mandatory: no Centralised Design requirements:
FC Mandatory where the fuel cell power is used for Mandatory: Power Fuel cell installations essential, important or yes emergency services Design requirements: Pt.6 Ch.2 Sec.3 Fuel cell installations where Mandatory where the fuel the fuel cell power is not used is a gas or a liquid FiS survey requirements: Safety used for essential, important fuel with flash point below Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 or emergency users 60°C Sec.3 and Pt.7 Ch.1 Sec.4
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DNV GL AS Class notation Qualifier Purpose Application 4
Fuel Fuel treatment and n
conditioning system, where o Mandatory: i
ⱱ is maximum viscosity in t
no c cSt at 50°C, ρ is maximum Design requirements: density in kg/m3 of the e
ⱱ, ρ, T S
Pt.6 Ch.2 Sec.4 fuel oil at 15°C, and T
is minimum outside air 2
FiS survey requirements:
temperature in °C for r Pt.7 Ch.1 Sec.6 [18]
which the installations are e approved t p
Gas fuelled a Mandatory: h C
yes 1
Design requirements: Gas fuelled engine
Pt.6 Ch.2 Sec.5 installations r FiS survey requirements: a P Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 Sec.3 and Pt.7 Ch.1 Sec.4
Gas ready The qualifier D is Mandatory: mandatory for assigning the class notation Gas no ready, and indicates that Ship is designed for future Design requirements: the design for the ship D conversion to liquefied Pt.6 Ch.2 Sec.8 with LNG as fuel is in natural gas (LNG) fuel compliance with the Gas FiS survey requirements: fuelled notation applicable NA for the newbuilding, see Ch.1 Sec.2 [1.3]
Installed structural reinforcements to support the fuel containment system S (LNG fuel tank(s)), and materials to support the relevant temperatures are used
Installed Fuel containment T system (LNG fuel tank(s))
Installed pipe routing, structural arrangements for P bunkering station, and gas valve unit space
The qualifier MEC is mandatory for assigning Main engine(s) installed can MEC the class notation Gas be converted to dual fuel ready. MEI can be used as an alternative
Main engine(s) installed can MEI be operated on gas fuel
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DNV GL AS Class notation Qualifier Purpose Application 4
The auxiliary engine n
Auxiliary engine(s) installed capacity after conversion o AEC i can be converted to dual fuel shall be sufficient for the t ship power balance c e
Auxiliary engines installed S AEI can be operated on gas fuel 2
Boilers installed are capable r B of burning gas fuel e t
Additional systems and p equipment are installed on a
MISC h board from newbuilding C
stage 1
LFL fuelled t
Mandatory: r a yes P Design requirements: Low flashpoint liquid fuelled
RP Main and alternative Mandatory: propulsion is provided by a common propulsion system no (one propeller, one shaft 1 Design requirements: and one rudder/steering Pt.6 Ch.2 Sec.7 gear) with redundant prime movers or two or more FiS survey requirements: propellers NA Propulsion and steering are of a redundant design with 2 two (or more) propellers in parallel operation
Propulsion and steering are of a redundant design with two (or more) propellers 3 in parallel operation and separated by watertight A-60 bulkheads
% of the propulsion power and where relevant, associated steering system, Mandatory for RP(1), x can be restored and RP(2), and RP(3) maintained after single failure
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DNV GL AS Class notation Qualifier Purpose Application 4
Propulsion power and n
steering capacity is o i
+ maintained without t disruption upon any single c failure e S
Scrubber ready Ready for installation of a D 2 Mandatory: dry scrubber system r
no Ready for installation of a e C t wet closed scrubber system Design requirements: Mandatory, mutually p Pt.6 Ch.2 Sec.9 Ready for installation of a exclusive qualifiers a
H h FiS survey requirements: wet hybrid scrubber system C
NA Ready for installation of a O 1 wet open scrubber system t r Ready for in-line installation a
of scrubber system with one P IL individual linear scrubber unit per consumer Mandatory, mutually Ready for installation of exclusive qualifiers scrubber system with MI multiple inlets to one or more scrubber units
Structural supports and ship structures are prepared for HS installation of a scrubber system at newbuilding stage
Complete review according Review of the future to main class rules. scrubber installation system Includes piping and R for compliance according to electrical systems. Control relevant class rules and monitoring verification is limited
An agreed number of Certification and installation systems and or components of parts of the scrubber are included from systems before delivery MISC newbuilding stage and based on agreement followed up by the Society between owner and yard, throughout the new building with detailed list provided process to Society for acceptance
If the Society is authorized The future scrubber by the Flag Administration installation complies with to issue the IAPP S Marpol annex 6 regulation 4 certificate. Review and 14, and MEPC.259(68) according to IMO resolution MEPC.259(68)
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 35 Class notations
DNV GL AS Class notation Qualifier Purpose Application 4
Shaft align Intended for propulsion n
systems installed on vessels o Mandatory: i
with conventional hull forms t
no c 1 and incorporates enhanced Design requirements: aft bearing performance e S
Pt.6 Ch.2 Sec.10 during normal and turning
operating conditions 2
FiS survey requirements: Pt.7 Ch.1 Sec.6 [38] Intended for propulsion r e
systems requiring additional t
calculations to estimate p
hydrodynamic propeller a
loads during turning h 2 conditions. Typical C
installations are vessels with 1
non-conventional hull forms t
such as asymmetric stern, r
twin skeg, etc. a P
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 36 Class notations
DNV GL AS 4 4 Navigation and manoeuvring n o
Table 4 Additional class notations related to navigation and manoeuvring i t c
Class notation Qualifier Purpose Application e S
DYNPOS Includes single DP control Dynamic positioning system AUTS system and manual levers 2 Mandatory: with no redundancy control back-up r no e Design requirements: Dynamic positioning system t
Includes single DP control p with no redundancy.
Pt.6 Ch.3 Sec.1 and Pt.6 Ch.3 system, single joystick a AUT Provides higher availability
Sec.2 control system and manual h and robustness compared to FiS survey requirements: levers control back-up C DPS(1)
Pt.7 Ch.1 Sec.6 [12] 1 Dynamic positioning system Includes redundant DP t
with redundancy in technical control system, single r
AUTR design. Provides higher joystick control system and a
availability and robustness manual levers control back- P compared to DPS(2) up
Includes redundant DP Dynamic positioning system control system, single with redundancy and joystick control system and separation in technical manual levers control back- AUTRO design. Provides higher up. In addition a single availability and robustness DP control system in a compared to DPS(3) separated back-up control space
Includes redundant DP control system and single independent alternative DP Dynamic positioning system control system and manual with enhanced reliability. levers control back-up Position and heading keeping E Provides flexibility and ability meets intentions increased availability of comparable to or exceeding power and thrust by use of DPS(2) connected power systems, standby start and change- over of generator sets and thrusters
Dynamic positioning system with enhanced reliability. Includes, in addition to the Position and heading keeping properties of qualifier E, ability meets intentions fire resistant separation ER comparable to or DPS(2) between redundancy and DPS(3) (depending on groups, which in addition is which failure mode being watertight below main deck evaluated)
Annual survey to be carried In combination with A out in accordance with scope qualifiers AUTR, AUTRO, for renewal survey E, ER
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DNV GL AS Class notation Qualifier Purpose Application 4
DPS Dynamic positioning n
system with no redundancy o Mandatory: i
corresponding to IMO Includes single DP control t
no c guideline IMO MSC/Circ.645 system, single joystick
1 e Design requirements: “Guidelines for vessels control system and manual S
Pt.6 Ch.3 Sec.1 with dynamic positioning levers control back-up
systems” DP equipment 2
FiS survey requirements:
class 1 r Pt.7 Ch.1 Sec.6 [12] e
Dynamic positioning system t
with redundancy in technical p Includes redundant DP design corresponding to IMO a control system, single guideline IMO MSC/Circ.645 h 2 joystick control system and “Guidelines for vessels C manual levers control back- with dynamic positioning up 1 systems” DP equipment t
class 2 r a
Dynamic positioning system P Includes redundant DP with redundancy and control system, single separation in technical joystick control system and design corresponding to IMO manual levers control back- 3 guideline IMO MSC/Circ.645 up. In addition a single “Guidelines for vessels DP control system in a with dynamic positioning separated back-up control systems” DP equipment space class 3
Annual survey to be carried In combination with A out in accordance with scope qualifiers 2 and 3 for renewal survey
NAUT NAV Basic requirements Mandatory: Requirements within Enhanced requirements no OC bridge design, bridge for vessels operating world Design requirements: instrumentation and wide Pt.6 Ch.3 workstation arrangements. Enhanced requirements for Vessels with NAUT will FiS survey requirements: AW vessels operating in coastal comply with the principles and narrow waters Pt.7 Ch.1 Sec.6 [13] and aims of SOLAS V/15 and IMO MSC/Circ.982 Vessels operating as OSV service vessels for offshore industry
Enhanced multi functional workstation arrangement for Vessels with class notation ICS network based navigational NAUT systems
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DNV GL AS 4 5 Cargo operations n o
Table 5 Additional class notations related to cargo operations i t c
Class notation Qualifier Purpose Application e S
Bow loading 2
Mandatory: r yes e
Mandatory for Tanker for t Design requirements:
oil when installed p
Pt.6 Ch.4 Sec.1 a
FiS survey requirements: h C
Pt.7 Ch.1 Sec.2 1
CCO t
Mandatory: r a no For vessels with class Centralised cargo control for notation Tanker for oil or P Design requirements:
EL Mandatory: no Design requirements:
ETC Mandatory: no Design requirements:
MCDK Mandatory: no Design requirements:
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 39 Class notations
DNV GL AS Class notation Qualifier Purpose Application 4
LCS Mandatory if a loading n
computer calculating o Mandatory:
yes c strength is installed Design requirements: e
Loading computer system S
Pt.6 Ch.4 Sec.6 to assist the master as a DC Optional 2 FiS survey requirements: decision aid under damage Pt.7 Ch.1 Sec.6 conditions r e t REGAS Mandatory for vessels fitted
Mandatory: with regasification plant. a yes h C Design requirements: Additional requirements 1
Pt.6 Ch.4 Sec.7 ES for enhanced safety of Optional t
FiS survey requirements: regasification plant. r Pt.7 Ch.1 Sec.6 a P RCP Refrigerated container Mandatory: stowage positions, where X represents total number no of certified refrigerated Design requirements: stowage positions, and X/Y Pt.6 Ch.4 Sec.8 Y is the percentage of refrigerated containers FiS survey requirements: carrying fruit/chilled Pt.7 Ch.1 Sec.6 [20] cargoes. Y shall be at least 20%
RM Mandatory: Cargo refrigeration plant, no where X°C is lowest Design requirements: X°C/Y°C sea chamber temperature and Y Pt.6 Ch.4 Sec.9 °C sea maximum seawater temperature FiS survey requirements: Pt.7 Ch.1 Sec.6 [4]
RSCS+ Mandatory:
no Route specific container Design requirements: stowage on long haul as well
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DNV GL AS Class notation Qualifier Purpose Application 4
STL n o
Mandatory: i t
yes c
Design requirements: Submerged turret loading e
FiS survey requirements: Pt.7 Ch.1 Sec.2, Pt.7 Ch.1 r e
Sec.3 and Pt.7 Ch.1 Sec.4 t p
VCS Systems for control of a
vapour emission from cargo h Mandatory: 1
tanks and in compliance with C
no IMO MSC/Circ. 585 Design requirements: 1
Systems for control of t Pt.6 Ch.4 Sec.11 For vessels with class r vapour emission from cargo
notation Tanker for oil or a FiS survey requirements: 2 tanks and in compliance Tanker for oil products P Pt.7 Ch.1 Sec.6 [15] with IMO MSC/Circ. 585 and or Tanker for chemicals USCG CFR 46 Part 39
Systems for onboard vapour processing with a minimum 3 recovery rate of 78% of non- methane VOC
For vessels with class Additional requirements to B notation VCS(1) or vapour balancing VCS(2)
CA Carriage of fruits and Mandatory:
Design requirements: Carriage of fruits and Pt.6 Ch.4 Sec.12 vegetables under controlled port. FiS survey requirements: atmosphere, using a portable device Pt.7 Ch.1 Sec.6
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DNV GL AS 4 6 Equipment and design features n o
Table 6 Additional class notations related to equipment and design features i t c
Class notation Qualifier Purpose Application e S
Container 2
Mandatory: r no e
Equipped for carriage of For vessels other than t Design requirements:
containers Container ship p
Pt.6 Ch.5 Sec.1 a
FiS survey requirements: h C
Pt.7 Ch.1 Sec.4 1
Hatchcoverless For hatchcoverless container Mandatory for vessels with t Mandatory: r
ships, multi-purpose dry class notation Container a yes cargo ships and general ship, General dry cargo P Design requirements:
Crane Mandatory: no Onboard crane certified by Design requirements:
Cyber secure Selected and specified system(s) are covered and Mandatory: + implemented as required no by Pt.6 Ch.5 Sec.21 [3]. Design requirements: Establish barriers to prevent, The requirements are Pt.6 Ch.5 Sec.21 mitigate and respond to based on IEC 62443-3-3 FiS survey requirements: cyber-attacks.Establish security level 1 with
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DNV GL AS Class notation Qualifier Purpose Application 4
The requirements are n
based on IEC 62443-3-3 o i
security level 3 with t specific adaptations for c the maritime industry.The e
Advanced S
requirements are based
on IEC 62443-3-3 security 2
level 3 with specific r
adaptations for the e maritime industry t p
F Additional fire protection in a A Mandatory: accommodation area h C no Additional fire protection in
C 1
Design requirements: cargo area t
Pt.6 Ch.5 Sec.4 r
Additional fire protection in a FiS survey requirements: M machinery space P Pt.7 Ch.1 Sec.6
HELDK
Helicopter facility has been evaluated for additional CAA-N requirements specified by the Norwegian Civil Aviation Authorities
SF Mandatory:
no Compliance with Design requirements:
SPS Mandatory: no Ships carrying special personnel who are neither Design requirements:
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DNV GL AS Class notation Qualifier Purpose Application 4
Inert n o
Mandatory: i t
yes c Mandatory if installed on Design requirements: e
Pt.6 Ch.5 Sec.8 000 ton 2
FiS survey requirements: Pt.7 Ch.1 Sec.2 and Pt.7 Ch.1 r e
Sec.4 t p
LFL Designed for carriage of a
Mandatory: 1 liquid with flashpoint lower h
than 60°C C
no All ships except Tanker
Design requirements: for oil and Tanker for 1
Designed for carriage of t Pt.6 Ch.5 Sec.9 chemicals 2 liquid with flashpoint lower r FiS survey requirements: than 43°C a P NA
DG Arranged for carriage of solid dangerous goods in bulk Mandatory: B in compliance with SOLAS no Reg.II-2/19 Design requirements: Arranged for carriage Pt.6 Ch.5 Sec.10 of dangerous goods in P FiS survey requirements: packaged form in compliance Pt.7 Ch.1 Sec.6 with SOLAS Reg.II-2/19
DBC Mandatory: Arranged for carriage of no solid dangerous goods in Design requirements:
OILREC Mandatory: no Recovered oil reception and All ships except Tanker for Design requirements:
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DNV GL AS Class notation Qualifier Purpose Application 4
SPM n o
Mandatory: i t
yes c Mandatory for Tanker for Design requirements:
Pt.6 Ch.5 Sec.12 2
FiS survey requirements: NA r e t ESV Enhanced verification of DP p
Mandatory: dynamic positioning a h no Enhanced verification of C
thruster assisted mooring or Design requirements: TAM automatic thruster assisted 1
Pt.6 Ch.5 Sec.13
mooring systems t
FiS survey requirements: r
Enhanced verification of a Pt.7 Ch.1 Sec.6 PMS power management system P
Enhanced verification of SPT steering, propulsion and thruster system
Enhanced verification of ICS integrated control and monitoring system
Enhanced verification of DRILL drilling control system
Enhanced verification of BOP blow out prevention system
Enhanced verification of CRANE crane control system
“Hardware-In-the- Loop” (HIL) Testing where HIL-IS HIL test package is provided by independent HIL supplier
“Hardware-In-the- Loop” (HIL) Testing where HIL test program package and HIL test package report are provided by independent HIL-DS HIL supplier and HIL test simulator package is provided by the organization delivering the HIL target system
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DNV GL AS Class notation Qualifier Purpose Application 4
Gas bunker Equipped with dedicated n
gas fuel transfer equipment o Mandatory: i
no c fuelled ships on a regular Design requirements: basis e S
Pt.6 Ch.5 Sec.14 Equipped for handling of
Tanker for liquefied 2
FiS survey requirements: excess vapour return from gas or Tanker for c and NA VR-x the receiving ship with r
barges specifically intended e vapour recovery capacity of for carriage of liquefied gas t
x kW p a
Equipped with enhanced h EPC
positioning control system C
Equipped with enhanced 1
TC
transfer control system t r
CHEM a
Carriage of toxic chemicals, P Mandatory: in accordance with IBC code, no section 15.12, to and from Design requirements:
Walk2work For a specific offshore Mandatory:
ADW Mandatory:
no Ships intended for anchoring Design requirements:
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DNV GL AS Class notation Qualifier Purpose Application 4
BCLIQ Ships strengthened for BCLIQ with one of n
Cat1 liquefaction in design qualifiers, either Cat1 or o Mandatory: i
category 1 group A cargo Cat2, is mandatory for t
yes c ships intended for the Design requirements: carriage of solid bulk cargo e S
Pt.6 Ch.5 Sec.18 Ships strengthened for shipped at a moisture
Cat2 liquefaction in design content in excess of its 2
FiS survey requirements:
transportable moisture limit r NA category 2 group A cargo
which may liquefy during a e voyage t p
Gas power plant Vessels arranged with a gas a
fired power plant for the h Mandatory:
Design requirements: Additional performance t Pt.6 Ch.5 Sec.20 r requirements related to FiS survey requirements: Optional qualifier for Gas a
Performance the rated electrical power P power plant NA delivered from the power plant
Rated electrical power Optional qualifier when P (P[MW]) delivered from the Performance is assigned power plant
Supply voltage (V[kV]) Optional qualifier when V delivered from the power Performance is assigned plant
Supply frequency (f[Hz]) Optional qualifier when f delivered from the power Performance is assigned plant
RO/RO Mandatory: no Designed and arranged for roll-on and roll-of cargo For ships other than RO/ Design requirements:
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DNV GL AS 4 7 Cold climate n o
Table 7 Additional class notations related to cold climate i t c
Class notation Qualifier Purpose Application e S
Ice High powered vessels for Vessels constructed
1A*F regular traffic in heavy Baltic according to Finnish- 2 Mandatory:
ice Swedish ice rules r no e Design requirements: Constructed according to t
Vessels intended for p Finnish- Swedish ice rules
Pt.6 Ch.6 Sec.1 and Pt.6 Ch.6 1A* navigation in ice-infested a (1A Super). Ice thickness
Sec.2 waters h 1.0 m FiS survey requirements: C
Vessels intended for Constructed according to NA 1 1A navigation in ice-infested Finnish- Swedish ice rules t
waters (1A). Ice thickness 0.8 m r a
Vessels intended for Constructed according to P 1B navigation in ice-infested Finnish- Swedish ice rules waters (1B). Ice thickness 0.6 m
Vessels intended for Constructed according to 1C navigation in ice-infested Finnish- Swedish ice rules waters (1C). Ice thickness 0.4 m
Vessels intended for C navigation in light ice conditions
Vessels intended for E navigation in light localised drift ice
PC Vessels intended for Year-round operation in all 1 navigation in ice-infested Mandatory: Polar waters polar waters no Design requirements: Vessels intended for Year-round operation in 2 navigation in ice-infested moderate multi-year ice Pt.6 Ch.6 Sec.5 polar waters conditions FiS survey requirements: Year-round operation in NA Vessels intended for second-year ice which 3 navigation in ice-infested may include multi-year ice polar waters inclusions
Year-round operation Vessels intended for in thick first-year ice 4 navigation in ice-infested which may include old ice polar waters inclusions
Year-round operation in Vessels intended for medium first-year ice 5 navigation in ice-infested which may include old ice polar waters inclusions
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DNV GL AS Class notation Qualifier Purpose Application 4
Summer/autumn operation n Vessels intended for in medium first-year ice o 6 navigation in ice-infested i which may include old ice t
polar waters c inclusions e
Summer/autumn operation S Vessels intended for in thin first-year ice 7 navigation in ice-infested 2 which may include old ice
polar waters r inclusions e t Winterized Occasional operation in cold Basic p
Mandatory: climate for short periods a h no Regular operation in cold C
Design requirements: Cold climate or for an extended
period of time 1
Pt.6 Ch.6 Sec.3 t
FiS survey requirements: Operation in extreme cold r Pt.7 Ch.1 Sec.6 Polar climate of the polar regions a year-round P
td Design temperature
Additional requirements of a Enhanced higher level of winterization
DAT Mandatory: Design ambient air no temperature suitable for regular service during winter Design requirements: t to polar waters, where t Pt.6 Ch.6 Sec.4 denotes the lowest design FiS survey requirements: ambient temperature in °C NA
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DNV GL AS 4 8 Environmental protection and pollution control n o
Table 8 Additional class notations related to environmental protection and pollution control i t c
Class notation Qualifier Purpose Application e S
BWM m denotes method of
exchange as follows: 2 Mandatory: r no E[m] Ballast water exchange s - sequential method e Design requirements: f - flow-through method t d - dilution method p
Pt.6 Ch.7 Sec.1 a
FiS survey requirements: h
T Ballast water treatment C
Pt.7 Ch.1 Sec.6 1
Clean Arrangements for controlling t
Mandatory:
emissions and discharges a no P Design requirements: Additional design requirements for protection Pt.6 Ch.7 Sec.2 Design against accidents and for FiS survey requirements: limiting their consequences DNVGL-RU-HSLC Pt.7 Ch.1 Compliance with the NO Sec.6 [4] x emission requirements of Tier III Tier III according to MARPOL Annex VI, Regulation 13
ECA designed to operate all Mandatory: SOx-A machinery on marine distillate fuel no Fuel and Lubrication Oil System and Arrangements Design requirements: Designed to operate for meeting Regulations in Pt.6 Ch.7 Sec.3 machinery components SOx-P Emission Control Areas FiS survey requirements: used while in port on marine distillate fuel NA
ER Installations for the Applicable for all vessels reduction of NO emissions where SCR systems are Mandatory: SCR x by selective catalytic installed in one or more yes reduction systems exhaust lines Design requirements: Applicable for all vessels Pt.6 Ch.7 Sec.7 Installations for the where EGR systems are EGR reduction of NO emission by FiS requirements: x installed in one or more recirculation of exhaust gas Pt.7 Ch.1 Sec.2 and Pt.7 Ch.1 exhaust lines Sec.4 Installations for the reduction of NOx emissions certified in compliance TIER III with the NOx emission requirements of Tier III according to MARPOL Annex VI, regulation 13
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 50 Class notations
DNV GL AS Class notation Qualifier Purpose Application 4
Installations for removal of Applicable for all vessels n
SOx from exhaust by other where ubber systems not o EGCS i means than water or dry covered by other qualifiers t medium are installed c e
Installations for removal S
of SOx by use of seawater Applicable for all vessels 2
EGCS Open spray without means for where open loop scrubber recirculation (Open loop systems are installed r e
scrubber system) t p
Installations for removal of a Applicable for all vessels
SO by use of water spray in h EGCS Closed x where closed loop scrubber
a closed circulation system C
systems are installed (closed loop system) 1
Installations for removal t
Applicable for all vessels r of SOx by use of sea- or
where any configuration of a EGCS Hybrid freshwater spray in open or hybrid scrubber systems P closed circulation (Open and are installed closed loop system)
Installations for removal of Applicable for all vessels SO by use of a dry medium EGCS Dry x where dry scrubber through which the exhaust systems are installed stream is passed
Recyclable Mandatory: no Installations for the Applicable for all vessels reduction of NO emissions where SCR systems are Design requirements: SCR x by selective catalytic installed in one or more Pt.6 Ch.7 Sec.4 reduction systems exhaust lines FiS survey requirements: Pt.7 Ch.1 Sec.6 [35]
Shore power Mandatory: no Design requirements:
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 51 Class notations
DNV GL AS Class notation Qualifier Purpose Application 4
Silent Vessels using acoustical n A equipment o Mandatory: i t
no Vessels conducting seismic c S Design requirements: surveys e Vessels complying with S
Pt.6 Ch.7 Sec.6 F specified maximum Fishing vessel
underwater noise emission 2
FiS survey requirements: R Research vessel Pt.7 Ch.1 Sec.6 r e
Vessels demonstrating a t
E controlled environmental p
noise emission a h C
1
9 Living and working conditions t Table 9 Additional class notations related to living and working conditions r a P Class notation Qualifier Purpose Application
COMF Vessels designed for Mandatory: enhanced comfort by C-crn improved indoor climate. no crn denotes comfort rating Design requirements: number Pt.6 Ch.8 Sec.1 Vessels designed for FiS survey requirements: enhanced comfort by NA V-crn reducing noise and vibration. crn denotes comfort rating number
VIBR Mandatory: no Limitations to vibration Design requirements:
SAFELASH Mandatory: Increased safety level Container ships and no for crew members and vessels assigned the Design requirements:
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 52 Class notations
DNV GL AS 4 10 Survey arrangements n o
Table 10 Additional class notations related to survey arrangement i t c
Class notation Qualifier Purpose Application e S
BIS 2
Mandatory: r no Built for in-water survey e Design requirements:
Pt.6 Ch.9 Sec.1 a
FiS survey requirements: h C
Pt.7 Ch.1 Sec.6 1
ESP Mandatory for vessels with t
Mandatory: class notations: r a yes Bulk carrier P Design requirements: Tanker for oil Pt.6 Ch.9 Sec.2 Bulk carrier or tanker for oil FiS survey requirements: Vessels subject to an
HLP Mandatory: no Design requirements:
HMON Sensor monitoring An Mandatory: acceleration along one axis Hull monitoring at various no Statistical back-up and locations to reduce the need Bn trigged time series to be Design requirements: for internal survey through sent annually to the Society Pt.6 Ch.9 Sec.4 increased focus on hull FiS survey requirements: stress warnings. n denotes Online link to loading number of sensors computer which is Pt.7 Ch.1 Sec.6 Cn continuously up-dating the loading condition
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 53 Class notations
DNV GL AS Class notation Qualifier Purpose Application 4
Online data link between n
hull monitoring system on o i
board to office ashore. The t link shall make it possible c
Dn e to operate the system S
from an onshore computer,
perform maintenance and 2
transfer data r e
Sensor monitoring the t
En propulsion shaft(s) output/ p
rpm a h
Sensor monitoring global C
Gn hull strain 1
Sensor monitoring the t Hn liquid motion pressures in r tanks (sloshing) a P Sensors for ice thickness In measurement
Ice response monitoring, IRM further described by Ln
Sensor monitoring local hull Ln strain
Device for monitoring of Mn hull rigid body motions (six degrees of freedom)
Navigation sensors (position fixing system On (e.g. GPS), speed log, gyro compass, rudder angle, etc.)
Sensor monitoring the sea Pn pressure acting on the hull
Parametric roll sensors PR based on roll and pitch based on Mn
Device for monitoring the Sn sea-state
Sensor monitoring the Tn temperature
Free axial sensors for VDVn estimation of vibration dose value
Wind sensor for wind speed Wn and wind heading
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 54 Class notations
DNV GL AS Class notation Qualifier Purpose Application 4
TMON Oil lubricated tail-shaft n Oil lubricated stern tube bearing o Mandatory: Tailshaft monitoring enables i
operators to continuously t
no Water lubricated tail-shaft c observe and assess the Closed loop water stern tube bearing with e Design requirements: condition of the shaft(s) closed loop S Pt.6 Ch.9 Sec.5 which may extend interval
between tailshaft surveys/ Water lubricated tail-shaft 2
FiS survey requirements:
tail-shaft withdrawal r Pt.7 Ch.1 Sec.6 Open loop water stern tube bearing with open loop e t
BMON p a
Mandatory: h Boiler monitoring reduces
no C
the need for internal survey
Design requirements:
water management r
FiS survey requirements: a
Pt.7 Ch.1 Sec.6 P
CMON Mandatory: no Construction monitoring of Design requirements:
UWILD Mandatory: no Design requirements: Underwater inspection in lieu For permanently moored
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 55 Class notations
DNV GL AS 4 11 Naval n o
Table 11 Additional class notations related to naval vessels i t c
Class notation Qualifier Purpose Application e S
NAUT All naval flagged vessels 2
Mandatory: and administered r no Basic requirements to by a national naval e
bridge design, bridge t Design requirements: Navy administration, except:
instrumentation, and p — Vessel of less than 24 Pt.6 Ch.10 Sec.1 workstation arrangement a
meters L h FiS survey requirements: OA
— Submarines C
Pt.7 Ch.1 Sec.6 1
Naval support Naval operations and naval
Naval requirements for RADHAZ radiation hazards
Naval requirements EMC for electromagnetic compatibility
Naval requirements SAM for storage rooms for ammunition
11.1 General
11.1.1 The class notation Naval support may be combined with ship type notations in Pt.5.
11.1.2 The qualifiers to Naval support are optional.
11.1.3 Any combination of qualifiers for Naval support are allowed. For example Naval support(Hull, STAB, Fire).
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 56 Class notations
DNV GL AS SECTION 5 SERVICE AREA 5
n o
1 Service area notation i t c 1.1 General e S
1.1.1 The service area notation R followed by a number or a letter will be assigned to vessels with modified 2
requirements to arrangement, equipment or scantlings, in relation to vessels built for unrestricted trade. r e
The service area restrictions, given in nautical miles and representing the maximum distance from nearest t
port or safe anchorage, are given in Table 1 of this section. For the various service area notations the p restrictions are related to the zones, areas and seasonal periods as defined in the International Convention a on Load Lines, 1966, Annex II. h C
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 appendix 1
to the class certificate. t r
Table 1 Service area restrictions a P
Seasonal zones (nautical miles) Corresponding Service area significant wave notations 1) Winter Summer Tropical height HS in meters
R0 250 No restrictions No restrictions Not applicable
R1 100 200 300 0.9Cw
R2 50 100 200 0.8Cw
R3 20 50 100 0.6Cw
R4 5 10 20 0.5Cw
RE Enclosed waters 0.4Cw
1) Cw is the wave coefficient as defined in Pt.3 Ch.4 Sec.4. The significant wave height (HS) assumes reduced speed in head sea and that heading is changed when necessary to avoid resonance and extreme rolling.
1.1.2 Modified requirements related to the various service area notations are given in the relevant sections of the rules. The modifications may affect: — design hull girder loads — design pressures on shell, weather decks, superstructures and deckhouses — anchoring and mooring equipment — stability.
1.1.3 The flag administration, the domestic requirements of which are being applied under the provision of Ch.1 Sec.2 [1.3.5] (local trade), shall be indicated in parentheses after the service area notation, by using lower-case country codes in accordance with ISO 3166, (e.g. R2(nor), should the flag administration be Norway or R2(usa) should the flag administration be U.S.A. etc.). 1.1.5 Other service restrictions or operational limits included in the design assumptions for a vessel will be stated in the appendix to the class certificate and/or on special signboards.
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 57 Class notations
DNV GL AS SECTION 6 DESCRIPTIVE NOTATION 6
n o
1 General i t c 1.1 e S
For a vessel with purpose, function or feature not covered by existing notations, this may be recognized by 2 assignment of a descriptive notation. r e t
1.2 p a The descriptive notation may be assigned upon request to the Society. h C
1.3 1
t
There are no class requirements associated with a descriptive notation. r a P 1.4 The descriptive notation will be identified by use of square brackets, e.g. [Research vessel].
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 58 Class notations
DNV GL AS CHANGES – HISTORIC
January 2018 edition
Changes January 2018, entering into force 1 July 2018
Topic Reference Description
Implementation of new Sec.1 [1.1.1] Descriptive notation added to list of content of class notation descriptive notation string.
Sec.6 [1.1] to Sec.6 New requirements offering the option of assigning a descriptive
[1.4] notation to a vessel. Changes – historic
New ship type notation - Sec.3 Table 10 For vessels intended to carry potable water in bulk. 2
Tanker for potable water r e
New additional class notation - Sec.4 Table 6 Designed and arranged for roll-on and roll-of cargo handling t
RO/RO and transportation of rolling vehicles. p a
New additional class notation - Sec.4 Table 6 For vessels arranged with a gas fired power plant for the h
Gas power plant production and export of electrical energy. C
New additional class notation - Sec.4 Table 6 For anchoring in deep and unsheltered water. 1
ADW t r
New additional class notation - Sec.4 Table 6 For vessel intended to carry solid bulk cargo that may liquefy a BCLIQ during a voyage if shipped at a moisture level exceeding the P transportable moisture limit of the cargo.
New additional class notation - Sec.4 Table 6 Designed and arranged for roll-on and roll-of cargo handling RO/RO and transportation of rolling vehicles.
New additional class notation - Sec.4 Table 3 For enhanced design, installation and operating margins of the Shaft align propulsion shaft bearings beyond the main class requirements for shaft alignment.
July 2017 edition
Changes July 2017, entering into force 1 January 2018
Topic Reference Description
Notations for Service area Sec.5 Table 1 Inserted column with corresponding limiting significant wave restrictions (R notations) height Hs for each R notation. and corresponding limiting significant wave height, Hs Sec.5 Table 1 Inserted footnote related to operational assumptions.
Clarification of requirements for Sec.2 [2.1.1] Inserted text clarifying that requirements for ship type ship type and additional class and additional class notations may superseed main class notations requirements.
Correct reference Sec.3 Table 10 Inserted correct reference to Fleet in Service requirements.
Update Table 10 according to Sec.3 Table 10 Inserted class notation Escort tug with new qualifiers. Pt.5 Ch.10 Sec.11
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 59 Class notations
DNV GL AS Topic Reference Description
Update Table 10 according to Sec.4 Table 10 Inserted four new qualifiers according to the introduction in the Pt.6 Ch.9 Sec.4 rules.
Update Table 10 according to Sec.4 Table 10 Inserted new class notation CMON. Pt.6 Ch.9 Sec.7
January 2017 edition
Main changes January 2017, entering into force 1 July 2017 Changes – historic
• Sec.3 - Ship type notations 2
— Sec.3 Table 5: added class notation Barge for oil products with flashpoint above 60°C r e
— Sec.3 Table 5: added class notation Barge for asphalt/bitumen t
— Sec.3 Table 6: added application for class notation Tanker for chemicals with flashpoint above 60°C p — Sec.3 Table 6: added class notation Barge for chemicals with flashpoint above 60°C a h C
• Sec.4 - Additional class notations 1
— Sec.4 Table 6: added class notation Walk2work t r a
July 2016 edition P
Main changes July 2016, entering into force 1 January 2017
• Sec.3 Ship type notations — Sec.3 Table 5: Added class notation Barge for oil. — Sec.3 Table 5: Added class notation Barge for oil products. — Sec.3 Table 6: Added class notation Barge for chemicals. — Sec.3 Table 6: Added class notation Barge for C. — Sec.3 Table 7: Added class notation Tanker for c. — Sec.3 Table 7: Added class notation Barge for liquefied gas. — Sec.3 Table 7: Added class notation Barge for c. — Sec.3 Table 10: Added class notation Slop Reception Vessel. — Sec.3 Table 10: Added class notation Reefer. — Sec.3 Table 10: Added class notation Refrigerated fruit juice carrier.
• Sec.4 Additional class notations — Sec.4 Table 5: Class notation REGAS changed from optional to mandatory. — Sec.4 Table 5: Additional class notation CA.
January 2016 edition
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 60 Class notations
DNV GL AS Main changes January 2016, entering into force 1 July 2016
• Sec.3 Ship type notations — Table 5: Added class notations: — Tanker for oil products with flashpoint above 60°C — Tanker for asphalt/bitumen. — Table 6: Added class notation Tanker for chemicals with flashpoint above 60°C.
• Sec.4 Additional class notations Changes – historic
— Table 1: Added class notations: 2
— Hot — Block loading. r e — Table 3: Added class notation Scrubber ready t p
— Table 6: Added class notation CHEM a — Table 10: Added qualifiers for class notation TMON: h C — Closed loop water 1
— Open loop water. t r a
October 2015 edition P This is a new document. The rules enter into force 1 January 2016.
Rules for classification: Ships — DNVGL-RU-SHIP Pt.1 Ch.2. Edition July 2018 Page 61 Class notations
DNV GL AS About DNV GL DNV GL is a global quality assurance and risk management company. Driven by our purpose of safeguarding life, property and the environment, we enable our customers to advance the safety and sustainability of their business. We provide classification, technical assurance, software and independent expert advisory services to the maritime, oil & gas, power and renewables industries. We also provide certification, supply chain and data management services to customers across a wide range of industries. Operating in more than 100 countries, our experts are dedicated to helping customers make the world safer, smarter and greener.
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