Section
2 Character of classification and class notations
2.1 Definitions
2.1.2
Clear
water. Water having sufficient depth to permit the normal development
of wind generated waves.
2.1.3
Fetch. The extent of clear water across which a wind has blown before
reaching the ship.
2.1.4
Sheltered
water. Water where the fetch is six nautical miles or less.
2.1.5
Reasonable
weather. Wind strengths of force six or less in the Beaufort
scale, associated with sea states sufficiently moderate to ensure
that green water is taken on board the ship's deck at infrequent intervals
only or not at all.
2.1.6
Type
notation. A notation indicating that the ship has been arranged
and constructed in compliance with particular Rules intended to apply
to that type of ship. Type notations that may be assigned are listed
in Table 2.2.1 Type notations.
Table 2.2.1 Type notations
Dry cargo
|
Tanker
|
Passenger
|
Anchor handler
|
Chemical tanker
|
Passenger ferry
|
AHTS (Anchor Handler Tug Supply)
|
Double hull oil tanker
|
Passenger/vehicle ferry
|
Barge
|
Liquefied gas carrier
|
Passenger ship
|
Bulk carrier
|
Liquefied gas tanker
|
Passenger yacht
|
Cable laying vessel
|
Moored Liquefied gas carrier
|
Roll on-Roll off passenger
ferry
|
Container ship
|
Moored Liquefied gas tanker
|
Roll on-Roll off passenger ship
|
Diving support vessel
|
Moored Liquefied gas storage
unit
|
Sailing passenger ship
|
Dredger
|
Moored oil storage tanker
|
|
Escort tug
|
Moored oil storage unit
|
|
Fire fighting
|
Oil barge
|
|
Fishing vessel
|
Oil or bulk carrier
|
|
Hopper barge
|
Oil recovery ship
|
|
Hopper dredger
|
Oil tanker
|
|
Icebreaker
|
Ore or oil
carrier
|
|
Icebreaker(+)
|
|
|
Launch
|
|
|
Livestock carrier
|
|
|
Offshore support vessel
|
|
|
Offshore supply vessel
|
|
|
Offshore tug
|
|
|
Offshore well stimulation ship
|
|
|
Ore carrier
|
|
|
Pipe laying vessel
|
|
|
Pontoon
|
|
|
Reclamation ship
|
|
|
Refrigerated cargo ship
|
|
|
Research
|
|
|
Roll on-Roll off cargo ship
|
|
|
Seismographic support vessel
|
|
|
Shipborne barge
|
|
|
Subsea support vessel
|
|
|
Standby vessel
|
|
|
Stern trawler
|
|
|
Split hopper barge
|
|
|
Split hopper dredger
|
|
|
Trawler
|
|
|
Tug
|
|
|
Vehicle carrier
|
|
|
2.1.7
Cargo
notation. A notation indicating that the ship has been designed,
modified or arranged to carry one or more particular cargoes, e.g.
sulphuric acid. Ships with one or more particular cargo notations
are not thereby prevented from carrying other cargoes for which they
are suitable.
2.1.8
Special
duties notation. A notation indicating that the ship has been
designed, modified or arranged for special duties other than those
implied by the type and cargo notations, e.g. research. Ships with
special duties notations are not thereby prevented from performing
any other duties for which they may be suitable.
2.1.9
ShipRight
notation. Where one or more of LR’s ShipRight notation
procedures have been satisfactorily applied, then a notation showing
the associated characters of the procedure(s) within brackets will,
at the Owner’s request, be entered in column 4 of the Register
Book, preceded by the word ShipRight, see
Pt 1, Ch 2, 2.3 Class notations (hull) 2.3.17. Other ShipRight procedures
that have been satisfactorily applied will similarly be shown as descriptive
notes and will appear in column 6 of the Register Book, see
Pt 1, Ch 2, 2.8 Descriptive notes 2.8.2.
2.1.10
Special
features notation. A notation indicating that the ship incorporates
special features which significantly affect the design, see
Table 2.2.2 Special features notations.
Table 2.2.2 Special features notations
Special features
notation
|
Description
|
See also
|
BC
|
Assigned to bulk
carriers of length 150 m or above
|
Pt 4, Ch 7, 1.4 Class notation for CSR bulk carriers 1.4.2
|
Bottom Strengthened for (Operating Aground) (Loading and Unloading
Aground)
|
Assigned where the
bottom structure has been additionally strengthened for loading and
unloading aground
|
Pt 3, Ch 9, 7 Bottom strengthening for loading and unloading aground and Pt 4, Ch 12, 1.3 Class notations 1.3.4
|
BLS
|
Bow Loading System.
Assigned to tankers equipped with bow loading arrangements to facilitate the
transfer of cargo oil from offshore loading terminals
|
Pt 7, Ch 6, 1.2 Class notations 1.2.1
|
BoxMax
|
Assigned to container vessels that have an approved onboard lashing program
to calculate forces acting on a container and its container securing
arrangements. The notation may be accompanied by one of the following
supplementary letter sequences, V or V,W or V,W,L or
M. These allow the Master to use weather dependent factors based
on the environmental severity of the planned voyage to determine the forces
acting on the container and the container securing arrangements, potentially
increasing the flexibility of the carriage of containers onboard the ship.
V (Voyage dependency) denotes that weather
dependent factors based on an annual basis are available for selected
specific voyages or routes.
W (Weather
dependency) denotes that weather dependent factors based on a seasonal
basis are available for selected specific voyages or routes
L (Limited duration voyage) denotes that weather
dependent factors suitable for application to a limited duration voyage
in coastal waters are available.
M (Ship motion monitoring)
denotes that the ship’s Master shall select the weather dependent factors
and that in-service maximum ship motion and environmental conditions will
be recorded to demonstrate safe operation.
LR will supply weather dependent factors applicable to the
list of sea areas requested by the Owner, see also
Table 14.1.1 BoxMax notation features .
|
Pt 3, Ch 4 Longitudinal Strength and Pt 3, Ch 14 Cargo Securing Arrangements
|
Cargo Loading on (Tank Top/ Tween/ Deck (s) Plating/ Hatch cover(s))
limited to .... tonnes/m2
|
Assigned where
cargo loading on tank tops, decks and/or hatch covers are limited to a
specified maximum value which is less than the normal Rule loading
|
—
|
Carriage of Oils with a F.P. not exceeding 60°C
|
Assigned to non-oil
tankers where the ship is suitably constructed and arranged for the carriage
of oils with a flash point not exceeding 60°C (closed cup test)
|
Pt 4, Ch 9 Double Hull Oil Tankers
Pt 4, Ch 10 Single Hull Oil Tankers
|
Carriage of Oils with a F.P. exceeding 60°C
|
Assigned where only
the carriage of oils having a flash point exceeding 60°C (closed cup test)
is contemplated
|
Pt 4, Ch 9, 1.1 General 1.1.5
|
(Specified Cargo(es)) only
|
Assigned where
arrangements have been approved for the carriage of a specific
product(s)
|
Pt 4, Ch 9, 1.1 General 1.1.7
|
CC
|
Assigned where
structures are fitted with an approved corrosion control system
|
Pt 1, Ch 3 Periodical Survey Regulations
|
CCSA
|
Certified Container
Securing Arrangements. Assigned where freight container securing
arrangements are fitted, and the design and construction of the system is in
accordance with LR Rules and loose fittings are supplied
|
Pt 3, Ch 14 Cargo Securing Arrangements
|
CG
|
Cargo Gear. Assigned
where cargo gear is included in class at the Owner's request
|
Pt 3, Ch 9, 6 Lifting appliances and support arrangements
|
CL
|
Cargo Lift(s).
Assigned where cargo lift(s) are included in class at the Owner's
request
|
Pt 3, Ch 9, 6 Lifting appliances and support arrangements
|
CR
|
Cargo Ramp(s).
Assigned where cargo ramp(s) are included in class at the Owner's
request
|
Pt 3, Ch 9, 6 Lifting appliances and support arrangements
|
CRC –/– –kW –%/–%
|
Carriage
of refrigerated containers. The CRC notation may be applied to any ship
which has the ability to carry refrigerated containers operating at their
design condition with a 24-hour average external ambient air temperature of
35°C
|
Pt 7, Ch 10, 1.1 General
|
|
The
following descriptive notations may be appended, giving details of
electrical power and type of cargo:
|
|
|
–/–
|
No. of hold-stowed refrigerated
containers/No. of deck-stowed refrigerated containers e.g. 230/140
|
|
|
–kW
|
Power generating capacity dedicated
to supplying the container plug-in points, e.g. 2,800 kW
|
|
|
–%/–%
|
Stowage ratio of deep frozen and
chilled cargoes, e.g. 60%/40%
|
|
Container Cargoes in (((all) Hold (No(s)))( and on Upper Deck)(( and on
(all ) Hatch Cover( s) (No( s))...)
|
Assigned
where general cargo ships carry container cargoes.
|
Pt 3, Ch 4 Longitudinal Strength
|
Deck No(s) ... Strengthened for Carriage of Roll on-Roll off Cargoes
|
Assigned where it is
proposed either to stow wheeled vehicles on the deck or to use wheeled
vehicles for cargo handling and the deck and supporting structure has been
specially considered
|
Pt 3, Ch 9, 3 Decks loaded by wheeled vehicles
|
DSPM4
|
Dual Single Point
Mooring. Assigned to a ship provided with a dual mooring line arrangement at
a single-point mooring
|
Pt 3, Ch 13, 8 Anchor windlass design and testing
|
DWA
|
Deep Water
Anchoring. Assigned to a ship with a Rule length L not less than 135
m, subject to the Rules in Pt 3, Ch 13 Ship Control Systems, which
has increased equipment for anchoring in deep waters with a depth up to 120
m
|
Pt 3, Ch 13, 10 Anchoring equipment in deep and unsheltered water
|
ECL(1, 2, 3)
|
Assigned to vessels where work spaces, movement about the ship, fall
protection and working arrangements on deck have been specially considered
for performing container securing, inspection and other related
tasks
|
Rules for Ergonomic Container Lashing, July 2022
|
ELD
|
Assigned when ergonomic lighting design has been applied
|
Pt 6, Ch 2, 23 Ergonomic Lighting Design – ELD optional notation and Pt 16, Ch 2, 22 Ergonomic Lighting Design – ELD optional notation
|
EWP
|
Enhanced Weather Protection. Assigned where a vessel, subject to
the Rules in Pt 4, Ch 4 Offshore Support Vessels, has increased scantlings for
superstructure, windows and side scuttles.
|
Pt 4, Ch 4, 9 Enhanced weather protection
|
Fire-Fighting Ship 1, 2, 3 (with water spray)
|
Designed
where fire protection and fire-fighting equipment is provided. Type 1, 2 or
3 signifies the capacity of the fire-fighting equipment. The total discharge
capacity of the monitors in m3/h is shown in brackets. ‘With
water spray’ signifies that a ship is provided with a water spray system
which will provide an effective cooling spray of water
|
Pt 7, Ch 3 Fire-fighting Ships
|
Hatch Covers may be omitted in Hold (No(s) …)
|
Assigned where the
omission of hatch covers has been specially considered based upon the model
tests or alternative means to determine the quantity of water likely to
ingress the cargo holds and the means by which it is effectively and safely
discharged
|
Pt 3, Ch 9, 10 Omission of hatch covers
Pt 5, Ch 13, 3.8 Maintenance of integrity of bulkheads
|
Heavy Deck Loads
|
Assigned where
decks are strengthened for loading in excess of Rule basic minimum, e.g.
‘Upper deck aft of Fr. 50 strengthened for load of 10 tonnes/m2’
|
Pt 3, Ch 6 Aft End Structure
|
Helideck
|
Assigned where a designated helicopter landing platform or other deck area
with fire-fighting appliances and other equipment necessary for the safe
operation of helicopters are provided.
|
Pt 3, Ch 9, 5 Helicopter landing areas
|
Occasional Helicopter Landing Area
|
Assigned
where an area on a ship designated for occasional or emergency landing of
helicopters is provided.
|
Pt 3, Ch 9, 5 Helicopter landing areas
|
Hold (No(s)) ... may be empty at draughts not (less than) (exceeding)
...m
|
Assigned where
particular loading arrangements have been specially considered
|
Pt 4, Ch 7 Bulk Carriers
|
Ice Class
|
Assigned where a
ship is strengthened to navigate in specific ice conditions. Supplementary
Ice Class notations are given in Table 2.2.3 Notations for ice and cold
operations
|
Pt 8, Ch 1 Application and Pt 8, Ch 2 Ice Operations - Ice Class
|
Icebreaker
|
Assigned designed
for icebreaking duties
|
Pt 8, Ch 1 Application and Pt 8, Ch 2 Ice Operations - Ice Class
|
LA
|
Mandatory Lifting
Appliance(s). Assigned where the lifting appliance is considered to be an
essential feature, e.g. cranes on crane barges, lifting arrangements for
diving on diving support vessels, and is mandatory
|
Pt 3, Ch 9, 6 Lifting appliances and support arrangements
|
|
Mandatory
Lifting Appliance(s). Assigned where the lifting appliance is considered to
be an essential feature and has been classed by a recognised classification
society other than LR and later transferred into class with LR. In such
cases, a new Register of Ship’s Lifting Appliances & Cargo Handling Gear
(LA.1) will be issued in accordance with LR’s Code for Lifting Appliances in a Marine Environment, July 2022.
|
Pt 3, Ch 9, 6 Lifting appliances and support arrangements
|
LFPL
|
Low flash point
liquids. Assigned to offshore supply vessels intended for the carriage of
liquids with flashpoint below 60°C (closed cup test) in bulk
|
Pt 4, Ch 4 Offshore Support Vessels
|
For Liquefaction and Storage of (Methane, etc.) in Independent Gas Tanks
(Type B, etc.), Maximum Vapour Pressure ( ) MPa, Minimum Temperature
Minus ( ) °C
|
Assigned where
ships of Category 1B or 2 which have process plants installed solely for the
purposes of the physical liquefaction of impure feedstock gases at low
temperature and the storage of the purified liquefied gases (where the
chemical treatment of the impurities is an incidental process)
|
Pt 7, Ch 2, 2.2 Additional notations
|
LTMOOR
|
Long-term Terminal Mooring System
|
Pt 7, Ch 8, 1.2 Classification notations 1.2.3
Pt 3, Ch 10, 16 Long-term nearshore positional mooring system of the Rules and Regulations for the Classification of Offshore Units, July 2022
|
Machinery on deck
|
Assigned
where machinery other than lifting appliances, and anchoring and mooring
equipment is installed on deck
|
Pt 3, Ch 9, 9 Strengthening for machinery on deck
|
Marpol 20.1.3
|
Assigned to double
hull oil tankers not meeting the Rule minimum double side width requirements
but which comply with MARPOL Annex 1, Regulation 20.1.3
|
Pt 4, Ch 9, 1.4 Class notation and applicable Rules for non-CSR Double Hull Oil Tankers 1.4.3
|
Marpol 21.1.2
|
Assigned to double
hull oil tankers of less than 5000 tonnes deadweight which have a complete
double hull in accordance with MARPOL Annex I, Regulation 21.1.2
|
Pt 4, Ch 9, 1.4 Class notation and applicable Rules for non-CSR Double Hull Oil Tankers 1.4.4
|
Movable Decks
|
Assigned where all
movable decks comply with LR requirements. Movable decks other than those
specifically indicated in LR Rule requirements are not a classification
item
|
Pt 3, Ch 9, 4 Movable decks
|
Oil Recovery
|
Assigned when a
ship is equipped for oil recovery operations
|
Pt 7, Ch 5, 2 Oil recovery
|
Oil
Recovery (F.P. >60°C)
|
Assigned when a ship is equipped for oil recovery
operations restricted to oils with a flash point greater than 60°C
|
Pt 7, Ch 5, 2 Oil recovery
|
Petrol in Hold (No( s))...
|
Assigned to ships
that can carry motor vehicles with fuel in their tanks for self-propulsion,
in specified locations. It does not apply to ships that are designed
primarily for the carriage of motor vehicles Specific requirements will be
advised upon request
|
—
|
PL
|
Passenger Lift(s).
Assigned where the passenger lift(s) are included in class at the Owner's
request
|
Pt 3, Ch 9, 6 Lifting appliances and support arrangements
|
PM
(T1)
[or
(T2)
or
(T3)]
|
For ships fitted
with a positional mooring system (PM). The supplementary notation
(T1) [or (T2) or (T3)] may be applied if the system
is thruster-assisted. The encircled numeral defines the thruster
allowance
|
Pt 7, Ch 8, 1.2 Classification notations 1.2.1
|
PMC
(T1)
[or
(T2)
or
(T3)]
|
For ships fitted
with a positional mooring system for mooring in close proximity to other
ships or installations (PMC). The supplementary notation (T1) [or
(T2) or (T3)] may be applied if the system is
thruster-assisted. The encircled numeral defines the thruster
allowance
|
Pt 7, Ch 8, 1.2 Classification notations 1.2.1
|
RD
|
Relative Density.
Assigned where a ship has tanks appraised for a maximum permissible relative
density greater than 1,025
|
Pt 4, Ch 1 General Cargo Ships
Pt 4, Ch 4 Offshore Support Vessels
|
Self-Discharging (Unloading)
|
Assigned where a
ship fitted with self-unloading equipment whose structural aspect has been
specially approved
|
Pt 4, Ch 12, 1 General
|
SLS
|
Stern Loading
System. Assigned to tankers equipped with stern loading arrangements to
facilitate the transfer of cargo oil from offshore loading terminals
|
Pt 7, Ch 6, 1 General
|
Specialised for the Carriage of ...
|
Assigned to a
vessel which has been designed for the carriage of specified cargo other
than that applied by the type notation
|
Pt 4, Ch 4, 1 General
|
SPM4
|
Single Point
Mooring. Assigned to a ship provided with a single mooring line arrangement
at a single point mooring
|
Pt 3, Ch 13, 8 Anchor windlass design and testing
|
Strengthened to carry cargoes which may
liquefy (IMSBC Group A)
|
Assigned to ore
carriers which are to carry ‘Group A cargo’ and which have satisfied the LR
requirements for Classification as a specially constructed or fitted cargo
ship for confining cargo shift, as stipulated in the IMSBC Code. In
accordance with the IMSBC Code, vessels with this notation are eligible for
the carriage of Group A cargo where the moisture content rises above the
Transportable Moisture Limit (TML) after loading. This notation is assigned
at the request of the Owner.
|
Pt 4, Ch 11, 1.3 Class notation 1.3.4
|
Strengthened for Heavy Cargoes (any) Hold (No(s) ............... may be
empty)
|
Assigned to a bulk
carrier of less than 150 m in length or a ship designed for the carriage of
heavy cargoes. If only certain holds are strengthened for heavy cargoes,
they will be specified
|
Pt 4, Ch 1 General Cargo Ships and Pt 4, Ch 7, 1 General
|
HNLS
|
Hazardous and
noxious liquids system. Assigned to Offshore Support Vessels complying with
the aspects relevant to classification of the Code for the transport and
handling of hazardous and noxious liquid substances in bulk on offshore
support vessels (OSV Chemical Code)/
|
Pt 4, Ch 4, 8 Transport and handling of hazardous and noxious liquid substances in bulk
|
Hold No(s) ... Strengthened for Regular Discharge by Heavy Grabs
|
Assigned to bulk
carriers where cargoes are regularly discharged by heavy grabs and the
thickness of the plating of the hold inner bottom, hopper and transverse
bulkhead bottom stool is increased
|
Pt 3, Ch 9, 7.1 Application
|
Submersible to a depth of ...m below Upper Deck in Harbour only
|
Assigned to a ship
that is designed so that it can be submersed to a specified depth in harbour
only
|
—
|
Timber Deck Cargoes
|
Assigned where a
cargo of timber is carried on an uncovered part of the freeboard or
superstructure deck (does not include wood pulp or similar cargo) and the
requirements of the 1966 Load Line Convention concerning timber deck cargoes
or other National Regulations are complied with
|
Pt 3, Ch 9, 2 Timber deck cargoes
|
TLS
|
Submerged Turret
Loading System. Assigned to tankers equipped with submerged turret loading
systems to facilitate the transfer of cargo oil from offshore loading to
terminals
|
Pt 7, Ch 6, 1 General
|
Winterisation
|
Assigned to a ship
that is intended to navigate in cold climates and may be exposed to low
temperatures that may cause equipment to freeze due to ice accretion from
atmospheric icing or sea spray or due to freezing of liquid within a system.
Protection measures are provided and operational procedures are specified to
ensure that equipment is suitably protected to enable operation in low
temperatures. Supplementary Winterisation notations are given in Table 2.2.3 Notations for ice and cold
operations
|
Pt 8, Ch 1 Application and Pt 8, Ch 2 Ice Operations - Ice Class
|
WDL(+)
|
Weather
Deck Load. Assigned where the weather deck load scantlings have been
approved for a loading greater than a design head of 3,5 m
|
Pt 4, Ch 1 General Cargo Ships and Pt 4, Ch 4 Offshore Support Vessels
|
W2W
|
Walk To
Work. Assigned where a personnel transfer system is included in class at the
Owner’s request
|
Pt 3, Ch 9, 6 Lifting appliances and support arrangements
|
Table 2.2.3 Notations for ice and cold
operations
Notation
|
Description
|
Conditions
|
Application
|
See also
|
Ice Class 1E
|
For ships with length less than 150
m
|
Light and very light ice
conditions
|
Hull, Machinery
|
Pt 8, Ch 2, 4 Hull requirements for light ice conditions – Ice Classes 1D and 1E and Pt 8, Ch 2, 5 Machinery requirements for light ice conditions – Ice Classes 1D and 1E
|
Ice Class 1D
|
Hull strengthening in forward region
only
|
|
|
|
Ice Class 1C FS
|
|
Ice Class 1C; ships with such structure, engine
output and other properties that they are capable of navigating in light ice
conditions, with the assistance of icebreakers when necessary;
|
|
|
Ice Class 1B FS
|
|
Ice Class 1B; ships with such structure, engine
output and other properties that they are capable of navigating in moderate
ice conditions, with the assistance of icebreakers when necessary
|
|
|
Ice Class 1A FS
|
Finnish Swedish Ice Class
Rules
|
Ice Class 1A; ships with such structure, engine
output and other properties that they are capable of navigating in difficult
ice conditions, with the assistance of icebreakers when necessary
|
Hull, Machinery
|
Pt 8, Ch 2, 6 Hull requirements for first-year ice conditions – Ice Classes 1AS FS, 1A FS, 1B FS, 1C FS and 1D and Pt 8, Ch 2, 7 Machinery requirements for first-year ice conditions – Ice Classes 1AS FS(+), IAS FS, 1A FS, 1A FS(+), 1B
FS, 1B FS(+), 1C FS(+) and 1C FS
|
Ice Class 1AS FS
|
|
Ice Class 1A Super; ships with such structure,
engine output and other properties that they are normally capable of
navigating in difficult ice conditions without the assistance of
icebreakers
|
|
|
Ice Class 1C FS(+)
|
|
Ice Class 1C; ships with such
structure, engine output and other properties that they are capable of
navigating in light ice conditions, with the assistance of icebreakers when
necessary
|
|
|
Ice Class 1B FS(+)
|
Finnish Swedish Ice
Class Rules with enhanced engine power for icebreaking capability
|
Ice Class 1B; ships with such structure, engine
output and other properties that they are capable of navigating in moderate
ice conditions, with the assistance of icebreakers when necessary
|
Hull,
Machinery
|
Pt 8, Ch 2, 8 Hull requirements for first-year ice conditions – Ice classes 1AS FS(+), 1A FS(+), 1B FS(+) and 1C FS(+) and Pt 8, Ch 2, 9 Machinery requirements for first-year ice conditions - Ice classes 1AS FS(+), IAS FS, 1A FS(+), 1A FS, 1B
FS(+), 1B FS, 1C FS(+) and 1C FS
|
Ice Class 1A FS(+)
|
|
Ice Class 1A; ships with such structure, engine
output and other properties that they are capable of navigating in difficult
ice conditions, with the assistance of icebreakers when necessary
|
|
|
Ice Class 1AS FS(+)
|
|
Ice Class 1A Super; ships with such structure,
engine output and other properties that they are normally capable of
navigating in difficult ice conditions without the assistance of
icebreakers
|
|
|
Ice Class PC7
|
|
Summer/autumn operation in thin first-year ice
which may include old ice inclusions
|
|
|
Ice Class PC6
|
|
Summer/autumn operation in medium first-year ice
which may include old ice inclusions
|
|
|
Ice Class PC5
|
|
Year-round operation in medium first-year ice
which may include old ice inclusions
|
|
|
Ice Class PC4
|
IACS Polar Ship Rules
|
Year-round operation in thick first-year ice
which may include old ice inclusions
|
Hull, Machinery
|
Pt 8, Ch 2, 10 Hull strengthening requirements for navigation in multi-year ice conditions – Ice Classes PC1, PC2, PC3,
PC4, PC5, PC6, PC7 and Icebreaker and Pt 8, Ch 2, 11 Machinery strengthening requirements for navigation in multi-year ice conditions – Ice Classes PC1, PC2,
PC3, PC4, PC5, PC6, PC7 and Icebreaker
|
Ice Class PC3
|
|
Year-round operation in second-year ice which
may include multi-year ice inclusions
|
|
|
Ice Class PC2
|
|
Year-round operation in moderate multi-year ice
conditions
|
|
|
Ice Class PC1
|
|
Year-round operation in all Polar waters
|
|
|
Winterisation H(t)
|
Hull construction materials
|
|
Hull, materials
|
Ch 1, 2 Materials for hull construction at low temperatures – Winterisation H of the Rules for the Winterisation of Ships, July 2022
|
Winterisation C(t)
|
Short duration
|
Low temperature operations
|
|
|
Winterisation B(t)
|
Seasonal duration
|
|
Equipment and systems
|
Ch 1, 3 Materials for equipment and components at low temperatures – Winterisation M of the Rules for the Winterisation of Ships, July 2022
|
Winterisation A(t)
|
Prolonged duration
|
|
|
|
2.1.11
Service
restriction notation. A notation indicating that a ship has
been classed on the understanding that it will be operated only in
suitable areas or conditions which have been agreed by the Classification
Committee, e.g. protected waters service.
2.1.12
Linked means connected, while in operation, to an attendant ship
(which may be on shore, submerged or afloat) by a restraining line,
suspension cable or umbilical cord.
2.1.13
Laid-up
notation. A ship not under repair or not actively employed
may be assigned the laid-up notation in order to maintain the ship
in class subject to agreement by the Classification Committee. A general
examination of the hull and machinery is to be carried out in lieu
of the Annual Survey. An Underwater Examination (UWE) is to be carried
out in lieu of the Special Survey. See
Pt 1, Ch 3, 1.1 Frequency of surveys 1.1.2, Pt 1, Ch 3, 2.1 General 2.1.5, Pt 1, Ch 3, 5.1 General 5.1.6 and Pt 1, Ch 3, 11.1 Annual, Intermediate and Bottom Surveys 11.1.2.
2.2 Character symbols
2.2.1 All ships, when classed, will be assigned one or more character symbols as
applicable. For the majority of ships, the character assigned will be 100A1,
100A1 or
100A1.
2.2.2 A full
list of character symbols for which ships may be eligible is as follows:
|
= |
This distinguishing mark
will be assigned, at the time of classing, to new ships constructed
under LR's Special Survey in compliance with the Rules, and to the
satisfaction of the Classification Committee. |
|
= |
This distinguishing mark,
will be assigned to ships built under supervision of another IACS
member society and later assigned class with LR. For such ships the
class notations will be reviewed separately and equivalent notations
will be assigned. |
100
|
= |
This
character figure will be assigned to all ships considered suitable
for sea-going service. |
A
|
= |
This
character letter will be assigned to all ships which have been built
or accepted into class in accordance with LR's Rules and Regulations,
and which are maintained in good and efficient condition. |
1
|
= |
This
character figure will be assigned to: |
= |
(a) Ships having on board, in good and efficient condition,
anchoring and/or mooring equipment in accordance with the Rules. |
= |
(b) Ships classed for a special service, having on board, in
good and efficient condition, anchoring and/or mooring equipment approved
by the Classification Committee as suitable and sufficient for the
particular service. |
N
|
= |
This
character letter will be assigned to ships on which the Classification
Committee has agreed that anchoring and mooring equipment need not
be fitted in view of their particular service. |
T
|
= |
This
character letter will be assigned to ships which are intended to perform
their primary designed service function only while they are anchored,
moored, towed or linked, and which have, in good and efficient condition,
adequately attached anchoring, mooring, towing or linking equipment
which has been approved by the Classification Committee as suitable
and sufficient for the intended service. |
2.2.3 For
classification purposes, the character figure 1, or either
of the character letters N or T, is to be
assigned.
2.2.4 In cases
where the anchoring and/or mooring equipment is found to be seriously
deficient in quality or quantity, the class of the ship will be liable
to be withheld.
2.3 Class notations (hull)
2.3.1 When considered necessary by the Classification Committee, or when
requested by an Owner and agreed by the Classification Committee, a class notation will
be appended to the character of classification assigned to the ship. This class notation
will consist of one of, or a combination of: a type notation, a cargo notation, a
special duties notation, a special features notation and/or a service restriction
notation, e.g `
100A1 Oil Tanker F.P. exceeding 60°C in No. 4 tanks ESP Baltic Service Ice Class
1B'.
2.3.5 Where a service notation is applicable, certain exemptions may be granted.
Where these affect statutory requirements, such as Load Lines, the Owner or shipbuilder
is to obtain the authorisation of the Flag State. Such exemptions are to be recorded on
the Class certificate and any applicable statutory certificate.
2.3.6
Protected waters service. Service in sheltered water adjacent to sand banks,
reefs, breakwaters or other coastal features, and in sheltered water between islands,
e.g. `Protected Waters Service at Storebaelt Bridge'.
2.3.7
Extended protected waters service. Service in protected waters and also for short
distances (generally less than 15 nautical miles) beyond protected waters in `reasonable
weather', e.g. `Extended Protected Waters Service from the Port of Lagos'.
2.3.8
Specified coastal service. Service along a coast, the geographical limits of
which will be indicated in the Register Book, and for a distance out to sea
generally not exceeding 21 nautical miles, unless some other distance is specified for
`coastal service' by the Administration with which the ship is registered, or by the
Administration of the coast off which it is operating, as applicable, e.g. `Indonesian
coastal service'.
2.3.9
Specified route service. Service between two or more ports or other geographical
features which will be indicated in the Register Book,
e.g.
- `London to Rotterdam service'
- `London, Rotterdam and Hamburg service'.
2.3.10
Specified operating area service. Service within one or more geographical area(s)
which will be indicated in the Register Book,
e.g.
- `Pacific Tropical Zone service'
- `Great Lakes and St.Lawrence to Pt. du Monts service'
- `Red Sea, Eastern Mediterranean and Black Sea service'.
2.3.11
*IWS. This notation (In-water Survey) may be assigned to a ship where the
applicable requirements of LR's Rules and Regulations are complied with, see
Pt 1, Ch 3, 4.3 In-Water Surveys; Pt 3, Ch 1, 5.2 Plans and supporting calculations and Pt 3, Ch 1, 5.3 Plans to be supplied to the ship; Pt 3, Ch 2, 3.5 External hull protection; Pt 3, Ch 13, 2.16 Pintles and Pt 5, Ch 6, 3.12 Sternbushes and sterntube arrangements. The notation will be withdrawn for ESP ships
upon reaching 15 years of age.
2.3.12
ESP. This notation (Enhanced Survey Programme) will be assigned to oil tankers,
combination carriers, chemical tankers, bulk carriers and ore carriers, as defined in
Pt 1, Ch 3, 1.5 Definitions which are subject to an enhanced survey programme as detailed
in Pt 1, Ch 3, 3 Intermediate Surveys - Hull and machinery requirements, Pt 1, Ch 3, 6 Special Survey - Bulk carriers - Hull requirements, Pt 1, Ch 3, 7 Special Survey - Oil tankers (including ore/oil ships and ore/bulk/oil ships) - Hull requirements and Pt 1, Ch 3, 8 Special Survey - Chemical Tankers - Hull requirements.
2.3.14
Class notations for CSR bulk carriers. In general, CSR bulk carriers less than
150 m in length are to comply with the requirements of Pt 4, Ch 7, 1.4 Class notation for CSR bulk carriers and the IACS Common Structural Rules (CSR) and
will be eligible for one of the following mandatory class notations:
{any holds may be empty}
|
This class notation is normally assigned to a
ship designed to carry dry bulk cargoes of cargo density 1,0
tonne/m3 and above, with an approved arrangement of loaded
holds such that any hold may be empty at the maximum draught.
|
{holds a, b, ... may be empty}
|
This class notation is normally assigned to a
ship designed to carry dry bulk cargoes of cargo density 1,0
tonne/m3 and above with specified holds empty at maximum
draught.
|
In general, CSR bulk carriers equal to or greater than 150 m in length are
to comply with the requirements of Pt 4, Ch 7, 1.5 Class notation for non-CSR bulk carriers and the IACS Common Structural Rules (CSR) and
will be eligible for one of the following mandatory class notations:
BC-A, holds a, b, … may be empty
|
This class will be
assigned for bulk carriers designed to carry dry bulk cargoes of cargo
density 1,0 tonne/m3 and above with specified holds empty at
maximum draught.
|
BC-B
|
This class will be assigned for bulk
carriers designed to carry dry bulk cargoes of cargo density 1,0
tonne/m3 and above with all cargo holds loaded.
|
BC-C
|
This class will be assigned for bulk
carriers designed to carry dry bulk cargoes of cargo density less than 1,0
tonne/m3 with all cargo holds loaded.
|
The following additional notations and annotations are to be provided
giving further detailed description of limitations to be observed during operation as a
consequence of the design loading condition applied during the design:
{Maximum cargo density in t/m3}
|
For notations BC-A and
BC-B if the maximum cargo density is less than 3,0
tonnes/m3
|
{No MP}
|
For all notations when the vessel has
not been designed for loading and unloading in multiple ports in accordance
with the conditions specified in IACS Common Structural Rules (CSR),
Pt 1, Ch 4, Sec 8,4.2.2.
|
GRAB [X]
|
Where the net thickness of plating of
inner bottom, hopper tank sloping plate, transverse lower stool, transverse
bulkhead plating and inner hull up to a height of 3,0 m above the lowest
point of the inner bottom, excluding bilge wells comply with IACS Common
Structural Rules (CSR), Pt 2, Ch 1, 6 for BC-A and
BC-B, see IACS Common Structural Rules (CSR), Pt 1, Ch 1, Sec
1,3.2.1.
|
{Block loading}
|
For additional service feature
BC-A, when the ship is intended to operate in alternate block load
condition, see
IACS Common Structural Rules(CSR), Pt 1, Ch 4, Sec 8, 4.2.3,
item d.
|
(allowed combination of specified empty holds)
|
Annotation for notation BC-A.
|
2.3.15
ESN. This notation (Enhanced Survivability Notation) will be assigned to
non-CSR bulk carriers which are designed to withstand the individual flooding
of all cargo holds, see
Pt 4, Ch 7, 1.3 General class notations 1.3.2.
2.3.16
LI. This notation will be assigned where an approved loading instrument has been
installed as a classification requirement.
2.3.17
ShipRight( ). Where one or more of LR’s ShipRight Procedures for the following
have been satisfactorily applied, then a notation showing the associated characters of
the procedure(s) within brackets will, at the Owner’s request, be entered in column 4 of
the Register Book, preceded by the word ShipRight, e.g. ShipRight(CM,
SDA, FDA plus(25,NA)). The requirements pertaining to these notations and the
ShipRight procedures are given in Pt 3, Ch 16 ShipRight Procedures for the Design, Construction and Lifetime Care of Ships.
ACS()
|
This ShipRight notation (Anti-Corrosion System) will
be assigned when a specified area or areas of the ship have been protected
against corrosion in accordance with the relevant ShipRight procedures. The
ACS( ) notation with the extension of one or more of the following
associated supplementary characters shown in brackets, detailing the
specified protected area or areas, may be assigned;
|
|
B
|
for
protective coating system of water ballast tanks;
|
|
D
|
for
protective coating system of double-side skin spaces;
|
|
C
|
for
protective coating system of cargo oil tanks;
|
|
C*
|
when
corrosion resistant steel has been used in cargo oil tanks;
|
|
V
|
for
protective coating system of void spaces.
|
CM
|
This ShipRight notation (Construction Monitoring), which
complements the ShipRight SDA, FDA, FDA plus() , FDA
ICE, FDA SPR, and WDA notations, will be assigned when the
controls in construction tolerances detailed in the relevant ShipRight
procedures have been applied and verified. The ShipRight notation CM
is mandatory upon application of any of the following ShipRight notations:
SDA, FDA, FDA plus(), FDA ICE, FDA SPR and WDA
|
FDA
|
This ShipRight notation (Fatigue Design Assessment) will be
assigned when an appraisal has been made of the fatigue performance of the
hull structure in accordance with the relevant ShipRight procedures.
|
FDA plus()
|
This ShipRight notation (Fatigue Design Assessment plus) will be
assigned when an appraisal has been made for a higher level of fatigue
performance than that made for the assignment of FDA. The appraisal
may be made based upon a specific trading pattern, which is to be expressed
in terms of either a Worldwide trading route, as defined in the relevant
ShipRight procedures, or a North Atlantic trading route (that utilises the
wave data from IACS Recommendation 34). The ShipRight notation FDA
plus() is to be followed by the number of years that the vessel has
been assessed for the specific trading pattern shown in brackets, for either
the Worldwide or North Atlantic trading routes, denoted by WW and
NA respectively, e.g. FDA plus (25, NA).
|
FDA ICE
|
This ShipRight notation (Fatigue Design Ice) will be assigned
when an appraisal has been made for the fatigue performance of the hull
structure when navigating through ice in accordance with the relevant
ShipRight procedures.
|
FDA SPR
|
This ShipRight notation (Springing Fatigue Assessment)
will be assigned when an appraisal has been made of the fatigue performance
of the hull structure taking into account the effects due to springing (the
continuous vibrational response of the hull girder due to waves) in
accordance with the relevant ShipRight procedures.
|
MP
|
This ShipRight notation will be assigned to ore
carriers where an assessment for multiple port loading and unloading has
been carried out in accordance with the relevant ShipRight procedures and
the ShipRight notation SDA has been assigned.
|
PRDA()
|
This ShipRight notation (Parametric Roll Design
Assessment) will be assigned to container ships where an assessment for
parametric roll resonance has been carried out using a calculation procedure
agreed by LR. The PRDA() notation with the extension of one of the
following associated supplementary characters shown in brackets, detailing
the specified assessment level, may be assigned:
1 This level
indicates that a parametric roll avoidance assessment has been carried
out;
2 This level includes the assessment carried out in
level 1 and, in addition, time domain numerical simulations to assess the
parametric roll risk.
|
SDA
|
This ShipRight notation (Structural Design Assessment)
will be assigned when direct calculations in accordance with the relevant
ShipRight procedures have been applied. The ShipRight notation SDA is
mandatory upon application of any of the following ShipRight
notations:FDA, FDA plus(), FDA ICE, FDA SPR ,
SLDA(), WDA1 and WDA2.
|
VIBM()
|
This ShipRight notation (Vibration Measurement) will be assigned
when measurement of vibration has been carried out and verified in
accordance with the relevant ShipRight procedures. The VIBM()
notation with the extension of one or more of the following associated
supplementary characters shown in brackets may be assigned:
H for
hull vibration measurement;
M for machinery vibration
measurement.
|
SLDA()
|
This ShipRight notation (Slamming Load Design
Assessment) will be assigned when direct calculations of wave slamming loads
and the associated hull structural strength have been carried out using a
calculation procedure agreed by LR. The SLDA() notation with the
extension of one or two of the following associated supplementary characters
shown in brackets, detailing the specified assessment area or areas, may be
assigned:
B for slamming load and hull strength assessment of
ship’s bow flare region;
S for slamming load and hull
strength assessment of ship’s stern counter region.
|
WDA1
|
This ShipRight notation (Whipping Design Assessment
Level 1) will be assigned when an appraisal has been made of the dynamic
response of the hull structure due to wave impact loads (Whipping) in
accordance with the relevant ShipRight procedures.
|
WDA2
|
This ShipRight notation (Whipping Design Assessment
Level 2) will be assigned when an appraisal has been made of the dynamic
response of the hull structure due to wave impact loads (Whipping) in
accordance with the relevant ShipRight procedures.
|
2.3.18 When the ShipRight notations SDA, FDA, FDA plus(),
FDA ICE, FDA SPR, PRDA(), SLDA(), WDA1, and
WDA2 are assigned, the precise technical conditions of the appraisal will be
made available to Owners.
2.3.19
EU notations. The following notations may be assigned to passenger ships that
comply with the requirements of the European Council Directive 98/18/EC of 17 March 1998
on safety Rules and Standards for passenger ships, and subsequent revisions:
EU(A)
|
This class notation will be assigned
to a passenger ship engaged on domestic voyages other than voyages covered
by Classes B, C and D.
|
EU(B)
|
This class notation will be assigned
to a passenger ship engaged on domestic voyages in the course of which it is
at no time more than 20 miles from the line of coast, where shipwrecked
persons can land, corresponding to the medium tide height.
|
EU(C)
|
This class notation will be assigned
to a passenger ship engaged on domestic voyages in sea areas where the
probability of exceeding 2,5 m significant wave height is smaller than 10
per cent over a one-year period for all-year-round operation, or over a
specific restricted period of the year for operation exclusively in such a
period (e.g. summer period operation), in the course of which it is at no
time more than 15 miles from a place of refuge, nor more than 5 miles from
the line of coast, where shipwrecked persons can land, corresponding to the
medium tide height.
|
EU(D)
|
This class notation will be assigned
to a passenger ship engaged on domestic voyages in sea areas where the
probability of exceeding 1,5 m significant wave height is smaller than 10
per cent over a one-year period for all-year-round operation, or over a
specific restricted period of the year for operation exclusively in such a
period (e.g. summer period operation), in the course of which it is at no
time more than 6 miles from a place of refuge, nor more than 3 miles from
the line of coast, where shipwrecked persons can land, corresponding to the
medium tide height.
|
2.3.20 The following notations may be assigned to ships that comply with standards
for noise and vibration levels in different spaces at the time of delivery and during
the ship's life if substantial changes to the machinery installation or interior
arrangements are made.
PAC
|
Passenger Accommodation Comfort. This
notation indicates that the passenger accommodation meets the acceptance
criteria.
|
CAC
|
Crew Accommodation Comfort. This
notation indicates that the crew accommodation and work areas meet the
acceptance criteria.
|
PCAC
|
Passenger and Crew Accommodation
Comfort. This notation indicates that the passenger and crew spaces both
meet the acceptance criteria.
|
Following the PAC or CAC notation, numerals 1, 2 or 3 will
indicate the acceptance criteria to which the noise and vibration levels have been
assessed. In the case of the PCAC notation, two numerals will be assigned. The
first will indicate the acceptance criteria for passenger accommodation, whilst the
second will indicate the crew comfort criteria. These notations are optional and are
primarily intended to apply to passenger ships. Spaces that comply with the minimum Rule
requirement for noise levels indicated in Pt 7, Ch 12 Passenger and Crew Accommodation Comfort, will meet the requirements of section 4 of IMO Resolution MSC.337(91) – Adoption of the Code on Noise Levels on Board Ships – (Adopted on 30 November 2012)The Annex below
is consolidated into Resolution MSC.337(91), when measured in accordance with the
requirements of Chapters 2 and 3 of that Resolution
2.3.21 The notation EPN (escort performance numeral) may be assigned to
escort tugs which carry out full-scale performance trials in accordance with the
requirements of Pt 4, Ch 3, 9.3 Performance numeral and trials. (F,B,V,C) may be appended to the notations
where:
F
|
Maximum steering force, in
tonnes.
|
B
|
Maximum braking force, in
tonnes.
|
V
|
Speed, in knots, at which F and B are
determined.
|
C
|
Time, in seconds, required for the
escort tug in manoeuvring from maintained oblique position of the tug giving
it a maximum steering force on one side of the assisted vessel to a mirror
position on the other side.
|
2.3.22 The escort performance numerals in the EPN notation may be given the
prefix CFD: where a Computational Fluid Dynamics prediction of the performance of
the escort tug during escort operation in indirect towing mode is made in accordance
with Pt 4, Ch 3, 9.4 Computational Fluid Dynamics Predicted Performance, in
lieu of full-scale performance trials.
2.3.23 Where escort performance numerals are predicted using computational fluid
dynamics, the escort performance numeral “C” will be omitted.
2.3.24 RIGGING. The RIGGING notation will be assigned where a new
vessel is fitted with a rig used for propulsion by wind force which is in accordance
with the Rules. See
Pt 3, Ch 9, 11 Wind propulsion systems.
2.3.25 RIGGING*. Upon request, the RIGGING* notation will be
assigned where an existing vessel is fitted with a rig used for propulsion by wind force
which is in accordance with the Rules. See
Pt 3, Ch 9, 11 Wind propulsion systems.
2.4 Class notations (machinery)
2.4.1 The
following class notations are associated with the machinery construction
and arrangement, and may be assigned as considered appropriate by
the Classification Committee:
LMC This notation will be assigned when the propelling and essential auxiliary
machinery, see
Pt 1, Ch 2, 2.9 Application notes 2.9.1, have been constructed, installed and tested under
LR’s Special Survey and in accordance with LR’s Rules and Regulations for the
Classification of Ships, see
Pt 1, Ch 2, 3.2 New construction surveys.
LMC This notation will be assigned when:
- the propelling arrangements for propellers, propulsion shafting and multiple
input/output gearboxes, steering systems, pressure vessels and electrical equipment
for essential systems have been constructed, installed and tested under LR’s Special
Survey and are in accordance with LR’s Rules and Regulations, see
Pt 1, Ch 2, 3.2 New construction surveys.
- other items of machinery and gearing arrangements for propulsion and
electrical power generation and other auxiliary machinery for essential services are
in compliance with LR Rules and supplied with the Manufacturer’s certificate. This
notation is assigned subject to the conditions in Pt 1, Ch 2, 2.9 Application notes 2.9.2 being complied with.
- the system arrangements of propelling and essential auxiliary machinery, see
Pt 1, Ch 2, 2.9 Application notes 2.9.1, are appraised and found to be acceptable to LR.
LMC This notation will be assigned to existing ships in service that will be
accepted or transferred into LR class when:
- the propelling and essential auxiliary machinery, see
Pt 1, Ch 2, 2.9 Application notes 2.9.1, have neither been constructed nor installed
under LR’s Special Survey.
- the existing machinery installation and arrangement have been tested and found to be
acceptable to LR.
MCH This notation will be assigned when the:
- propelling and essential auxiliary machinery, see
Pt 1, Ch 2, 2.9 Application notes 2.9.1, has been installed and tested under LR’s survey
and found to be acceptable to LR.
- propelling and essential auxiliary machinery has been supplied with a
Manufacturer’s certificate. This notation is assigned subject to the conditions in
Pt 1, Ch 2, 2.9 Application notes 2.9.3 being complied with.
- system arrangements of propelling and essential auxiliary machinery, see
Pt 1, Ch 2, 2.9 Application notes 2.9.1, are appraised and found to be acceptable to LR.
IGS This notation will be assigned when a ship intended for the carriage of oil
in bulk, or for the carriage of liquid chemicals in bulk, is fitted with an approved
system for producing gas for inerting the cargo tanks.
2.4.2 The
following class notations are associated with the machinery control
and automation, and may be assigned as considered appropriate by the
Classification Committee:
UMS This notation may be assigned when the arrangements are such that the ship
can be operated with the machinery spaces unattended. It denotes that the control
engineering equipment has been arranged, installed and tested in accordance with LR's
Rules, or is equivalent thereto.
CCS This notation may be assigned when the arrangements are such that the
machinery may be operated with continuous supervision from a centralised control
station. It denotes that the control engineering equipment has been arranged, installed
and tested in accordance with LR's Rules, or is equivalent thereto.
ICC This notation may be assigned when the arrangements are such that the control
and supervision of ship operational functions are computer based. It denotes that the
control engineering equipment has been arranged, installed and tested in accordance with
LR's Rules, or is equivalent thereto.
IP This notation may be assigned to a ship classed with LR when the arrangements
of the machinery are such that the propulsion equipment and all the essential auxiliary
machinery is integrated with the power unit for operation under all normal sea-going and
manoeuvring conditions. The system is to be bridge controlled and the propulsion
equipment is to incorporate an emergency means of propulsion in the event of failure in
the prime mover. It also denotes that the machinery and control equipment have been
arranged, installed and tested in accordance with LR's Rules.
2.4.3 The following class notation is associated with vessels capable of being operated
unmanned, and may be assigned as considered appropriate by the Classification Committee:
Unmanned Assigned when a vessel is designed and constructed such that it may be
operated unmanned, i.e. without crew, passengers or other persons on board.
2.4.4 The
following class notations are associated with dynamic positioning
arrangements, and may be assigned as considered appropriate by the
Classification Committee:
DP(CM) This notation may be assigned when a ship is fitted with centralised
remote manual controls for position keeping and with position reference system(s) and
environmental sensor(s). It denotes that the machinery and control engineering equipment
has been arranged, installed and tested in accordance with LR's Rules, or is equivalent
thereto.
DP(AM) This notation may be assigned when a ship is fitted with automatic main
and manual standby controls for position keeping and with postition reference system(s)
and environmental sensor(s). It denotes that the machinery and control engineering has
been arranged, installed and tested in accordance with LR's Rules, or is equivalent
thereto.
DP(AA) This notation may be assigned when a ship is fitted with automatic main
and automatic standby controls for position keeping and with position reference
system(s) and environmental sensor(s). It denotes that the machinery and control
engineering equipment has been arranged, installed and tested in accordance with LR's
Rules, or is equivalent thereto.
DP(AAA) This notation may be assigned when a ship is fitted with automatic main
and automatic standby controls for position keeping, together with an
additional/emergency automatic control unit located in a separate compartment and with
position reference systems and environmental sensors. It denotes that the machinery and
control engineering equipment has been arranged, installed and tested in accordance with
LR's Rules, or is equivalent thereto.
PCR()() This rating supplements the DP() notation. This rating indicates the
calculated percentage of time that a unit is capable of holding heading and position
under a standard set of environmental conditions (North Sea). Two rating
numerals are calculated:
- The first numeral represents the percentage of time that the ship can remain on
station when subjected to a set of standard environmental conditions (North Sea fully
developed) with all thrusters operating.
- The second numeral represents the percentage of time that the ship can remain on
station when subjected to a set of standard environmental conditions (North Sea fully
developed) with the most effective thruster being inoperative.
- A typical rating might be (95),(70).
The foregoing dynamic positioning notations may be supplemented
with a Performance Capability Rating (PCR). This rating indicates
the calculated percentage of time that a ship is capable of holding
heading and position under a standard set of environmental conditions
(North Sea), see
Pt 7, Ch 4 Dynamic Positioning Systems.
2.4.5 The
following class notations are associated with navigation safety, and
may be assigned as considered appropriate by the Classification Committee:
NAV1 This notation will be assigned when the bridge layout and level of equipment
are such that the ship is considered suitable for safe periodic operation under the
supervision of a single watchkeeper on the bridge. It denotes that the navigational
installation has been arranged, installed and tested in accordance with LR's Rules, or
is equivalent thereto.
IBS This additional notation will be assigned where an integrated bridge system
is fitted to provide electronic chart display, track planning and automatic track
following, centralised navigation information display, and bridge alarm management. It
denotes that the integrated bridge system has been arranged, installed and tested in
accordance with LR's Rules, or is equivalent thereto. For assignment of this notation,
in addition to satisfying LR Rules, or equivalent thereto, for navigational function
integration:
-
the layout of
the bridge and the equipment located on the bridge is to satisfy the
requirements of a relevant International or National Ergonomic or
Human-centred Design Standard, or an acceptable equivalent, to the
satisfaction of LR; or
-
the notation NAV1 is also to be assigned; or
-
where the bridge
is not intended to operate a periodic one man watch, the layout of
the bridge and the equipment on the bridge are to satisfy the requirements
for the assignment of the notation NAV1 to the satisfaction
of LR with the exception of requirements identified by LR Rules that
may be relaxed in such cases.
2.4.6 Machinery
class notations will not be assigned to ships the hulls of which are
not classed or intended to be classed with LR.
2.4.7 The notations
LMC, [ ]LMC,
LMC and MCH will, in general, not be assigned to non-propelled craft, but
individual cases will be considered on their merits.
Table 2.2.4 Machinery Class Notations
Machinery Notations See
Pt 1, Ch 2, 2.4 Class notations (machinery), Pt 1, Ch 2, 2.5 Class notations (machinery special features), Pt 1, Ch 2, 2.6 Class notations (refrigerated cargo installations (RMC), controlled atmosphere (CA) systems and carriage
of refrigerated containers (CRC))
|
LMC
Propulsion and essential machinery
|
OPS
Operation of Services by connection to an external
electrical Power Supply
|
Lloyd’s LMC
Refrigerated Machinery
|
LMC
Propulsion and essential machinery
|
PM
Positional Mooring System
|
Lloyd’s LMC
Refrigerated Machinery
|
LMC
Propulsion and essential machinery
|
PMC
Positional Mooring System for mooring in Close proximity to
other vessels or installations
|
Double Dagger – Suitable for carriage of fruit
|
MCH
Propulsion and essential machinery
|
LTMOOR
Long-term Terminal Mooring System for nearshore mooring
|
Lloyd’s RMC (LG)
Reliquefaction and/or refrigeration equipment is fitted
|
LFPF( )
Machinery installation fuelled by low flashpoint fuel
|
IGS
Inert Gas System
|
PMR
Propulsion System Redundancy
|
Lloyd’s RMC (LG)
Reliquefaction and/or refrigeration equipment is fitted
|
UMS
Unattended Machinery Spaces
|
PSMR
Propulsion and Steering System Redundancy
|
Lloyd’s RMC (BC)
Refrigerated Chemical tanker
|
CCS
Centralised Control Station
|
PSMR*
Propulsion and Steering System Redundancy in Separate
Compartments
|
Lloyd’s RMC (BC)
Refrigerated Chemical Tanker
|
ICC
Integrated Computer Control
|
PMRL
Propulsion System Redundancy with Limited Capacity
|
TC
Chemical Tanker temperature Control Systems
|
IP
Integrated Propulsion
|
PMRL*
Propulsion System Redundancy in Separate Compartments with
Limited Capacity
|
(CA)
Controlled Atmosphere
|
DP(CM)
Dynamic Position (Centralised Remote Manual Controls)
|
SMRL
Steering System Redundancy with Limited Capacity
|
CA (%O2, %CO2) Controlled Atmosphere
|
DP(AM)
Dynamic Position (Automatic main and Manual standby
Controls)
|
SMRL*
Steering System Redundancy in Separate Compartments with
Limited Capacity
|
RH
Relative Humidity
|
DP(AA)
Dynamic Position (Automatic main and Automatic standby
Controls)
|
PSMRL
Propulsion and Steering System Redundancy with Limited
Capacity
|
EGCS( )
Exhaust Gas Cleaning System
|
DP(AAA)
Dynamic Positioning (Automatic main and Automatic standby
controls with additional/emergency Automatic control)
|
PSMRL*
Propulsion and Steering System Redundancy in Separate
Compartments with Limited Capacity
|
BWTS
Ballast Water Treatment System
|
PCR()()
Performance Capability Rating
|
CAC1(1 or 2 or 3)
Crew Accommodation Comfort
|
BWTS*
Type Approved Ballast Water Treatment System
|
NAV1
Navigation Equipment
|
PAC1 (or 2 or 3)
Passenger Accommodation Comfort
|
|
IBS
Integrated Bridge System
|
PCAC1 (or 2 or 3), 1 (or 2 or 3)
Passenger and Crew Accommodation
|
|
2.5 Class notations (machinery special features)
2.5.1 The following class notation is associated with onshore power supply
arrangements and may be assigned as considered appropriate by the Classification
Committee, upon application from the Owners:
OPS
|
Assigned when the machinery,
electrical and control engineering arrangements installed on board to permit
continued operation of services by connection to an external electrical
power supply have been assessed.
|
2.5.2 The following class notations are associated with positional mooring
systems, or thruster-assisted positional mooring systems, and may be assigned as
considered appropriate by the Classification Committee:
PM
|
Assigned when a positional mooring
system is fitted. This notation can be supplemented by a Thrust-Assisted
notation (T1) [or (T2) or (T3)].
|
PMC
|
Assigned when a positional mooring
system for mooring in close proximity to other vessels or installations is
fitted. This notation can be supplemented by a Thrust-Assisted notation
(T1) [or (T2) or (T3)].
|
LTMOOR
|
Assigned when a positional mooring
system is fitted to a nearshore, inshore or at-shore terminal which complies
with the requirements of Pt 3, Ch 10, 16 Long-term nearshore positional mooring system of the Rules and Regulations for the Classification of Offshore Units, July 2022.
|
Note
This notation is not
intended to apply to vessels where station-keeping capabilities may be
suspended for short periods during adverse weather conditions, unless they
are planned to do so, and a subsequent loss of position allowed.
|
2.5.3 The following class notations are associated with machinery redundancy and
may be assigned as considered appropriate by the Classification Committee:
PMR
|
This notation will be assigned where
the main propulsion systems are arranged such that, in the event of a single
failure in equipment, the ship will retain not less than 50 per cent of the
installed prime mover capacity and not less than 50 per cent of the
installed propulsion systems. It also denotes that the installation has been
arranged, installed and tested in accordance with LR Rules.
|
PMR*
|
This notation will be assigned where
the main propulsion systems are arranged such that, in the event of a single
failure in equipment, the ship will retain not less than 50 per cent of the
installed prime mover capacity and not less than 50 per cent of the
installed propulsion systems and where the machinery is installed in
separate compartments such that, in the event of the loss of one
compartment, the ship will retain availability of propulsion power. It also
denotes that the installation has been arranged, installed and tested in
accordance with LR Rules.
|
SMR
|
This notation will be assigned where
the steering systems for manoeuvring are arranged so that steering
capability will continue to be available in the event of a single failure in
the steering gear equipment or loss of power supply or control system for
any steering system. It also denotes that the installation has been
arranged, installed and tested in accordance with LR’s Rules.
|
SMR*
|
This notation will be assigned where
the steering systems for manoeuvring are arranged so that steering
capability will continue to be available in the event of a single failure in
the steering gear equipment or loss of power supply or control system for
any steering system and where the steering systems are installed in separate
compartments such that, in the event of the loss of one compartment,
steering capability will continue to be available. It also denotes that the
installation has been arranged, installed and tested in accordance with LR’s
Rules.
|
PSMR
|
This notation will be assigned where
the main propulsion and steering systems are configured such that, in the
event of a single failure in equipment, the ship will retain not less than
50 per cent of the installed prime mover capacity and not less than 50 per
cent of the installed propulsion systems and retain steering capability. It
also denotes that the installation has been arranged, installed and tested
in accordance with LR’s Rules.
|
PSMR*
|
This notation will be assigned where
the main propulsion and steering systems are configured such that, in the
event of a single failure in equipment, the ship will retain not less than
50 per cent of the installed prime mover capacity and not less than 50 per
cent of the installed propulsion systems and retain steering capability. The
propulsion and steering arrangements are to be installed in separate
compartments such that, in the event of the loss of one compartment, the
ship will retain availability of propulsion power and manoeuvring
capability. It also denotes that the installation has been arranged,
installed and tested in accordance with LR’s Rules.
|
The foregoing machinery redundancy notations may be supplemented with the
additional L character which indicates a limited capability.
2.5.4 The following class notations are associated with comfort control and may be
assigned as considered appropriate by the Classification Committee:
CAC1
|
(or 2 or 3)
Assigned when noise and vibration levels in crew
accommodation and work areas have been assessed. Numerals 1 or
2 or 3 indicate the acceptance criterion to which the noise
and vibration levels have been assessed. Primarily intended to apply to
passenger ships. If requested, however, any ship can be assessed for
compliance.
|
PAC1
|
(or 2 or 3)
Assigned when noise and vibration levels in passenger
accommodation have been assessed. Numerals 1 or 2 or 3
indicate the acceptance criterion to which the noise and vibration levels
have been assessed. Primarily intended to apply to passenger ships. If
requested, however, any ship can be assessed for compliance.
|
PCAC1
|
(or 2 or 3), (1
or 2 or 3) Assigned when noise and vibration
levels in passenger and crew spaces have been assessed. Numerals 1 or
2 or 3 indicate the acceptance criterion to which the noise
and vibration levels have been assessed. Two numerals will be assigned, the
first for the acceptance criteria for passenger accommodation, the second
for crew comfort criteria. Primarily intended to apply to passenger ships.
If requested, however, any ship can be assessed for compliance.
|
2.5.5 The following class notation is associated with low flashpoint fuelled
vessels and may be assigned as considered appropriate by the Classification
Committee:
LFPF(xx,yy)
|
Ships complying with the
requirements of LR’s Rules and Regulations and fuelled by gas or other
low-flashpoint fuel will be eligible for assignment of LR’s Low Flash Point
Fuel notation, LFPF(xx,yy) where ‘xx’ identifies the applicable Rules
and Regulations and ‘yy’ identifies the type of fuel. The notation indicates
that the gas or other low-flashpoint fuelled machinery has been designed,
constructed, arranged, installed and tested in accordance with LR’s Rules
and Regulations.
|
|
With reference to ‘xx’,
the following identifiers are used:
GF Ships complying
with LR’s Rules and Regulations for the Classification of Ships using Gases or other Low-flashpoint Fuels, July 2022
(incorporating the IMO IGF Code).
GC Ships
complying with LR’s Rules and Regulations for the Construction and Classification of Ships for the Carriage of Liquefied Gases in Bulk, July 2022 (incorporating the IMO IGC
Code).
With reference to ‘yy’, the following
identifiers are used:
NG Natural gas
EG Ethane gas
PG Petroleum
gas (considered to include pure propane or butane or any mixture of the
two)
ML Methyl alcohol (methanol)
EL Ethyl alcohol (ethanol)
HY Hydrogen
AM Ammonia
|
2.5.6 The following class notations are associated with Ballast Water Treatment
Systems and may be assigned as considered appropriate by the Classification Committee:
BWTS Assigned to ships with a Ballast Water Treatment System (BWTS)
which is approved and installed in accordance with LR’s Rules and Regulations.
BWTS* Assigned to ships with a BWTS which is Type Approved in
accordance with LR’s Type Approval procedures and approved and installed in accordance
with LR’s Rules and Regulations.
2.5.7 The following notation associated with the equipment fitted for the
abatement of combustion machinery SOx emissions may be assigned as considered
appropriate by the Classification Committee:
EGCS This notation will be assigned where the SO x
emissions abatement plant has been designed, constructed, arranged, installed and tested
in accordance with LR’s Rules and Regulations. Application of the EGCS notation does not
infer that the installation will meet the statutory requirements for emissions
regulation. This notation is to be supplemented by one of the following associated
notations depending on the type of emissions abatement plant that is installed ( see
Pt 5, Ch 24, 1.2 Class notation and descriptive note 1.2.1 to Pt 5, Ch 24, 1.2 Class notation and descriptive note 1.2.3 for more
information):
- (Open) Open loop wet scrubber installed with no capacity to
operate in zero discharge mode;
- (Closed) Closed loop wet scrubber installed only capable of
operating in zero discharge mode;
- (Hybrid) The installed wet scrubber is able to operate in
both open loop and closed loop modes; or
- (Dry) Dry scrubber installed.
2.5.8 The following notation associated with the equipment fitted for the abatement of
combustion machinery NOx emissions may be assigned as considered appropriate
by the Classification Committee:
EGCN This notation will be assigned where the NO x
emissions abatement plant has been designed, constructed, arranged, installed and tested
in accordance with LR’s Rules and Regulations. Application of the EGCN notation
does not infer that the installation will meet the statutory requirements for emissions
regulation.This notation is to be supplemented by the following associated notation(s)
( see
Pt 5, Ch 24, 1.2 Class notation and descriptive note 1.2.4 to
Pt 5, Ch 24, 1.2 Class notation and descriptive note 1.2.7 for
more information):
-
(SCR) Selective catalytic reduction installed.
-
(EGR) Exhaust gas recirculation installed.
2.5.9 The following class notations are associated with hybrid electrical power
systems and may be assigned as considered appropriate by the Classification
Committee:
Hybrid Power Assigned to ships with an electrical power system
utilising a combination of two or more different types of power source or utilising
stored electrical energy to satisfy the ship’s main power demand. The system and its
component parts are in accordance with the existing applicable requirements of the Rules
and the requirements of Pt 6, Ch 2, 24 Hybrid electrical power systems.
Hybrid Power (+) Assigned to ships meeting the requirements for
Hybrid Power and the additional optional requirements for Hybrid Power
(+) specified within Pt 6, Ch 2, 24 Hybrid electrical power systems. The
additional optional requirements aim to provide for enhanced performance of the
electrical power system achieved through the consideration of system simulation, system
integration and the dependability of the electrical power system during normal or
reasonably foreseeable abnormal operation.
2.6 Class notations (refrigerated cargo installations (RMC), controlled
atmosphere (CA) systems and carriage of refrigerated containers (CRC))
2.6.1 The
following class notations may be assigned as considered appropriate
by the Classification Committee, on application from the Owners:
Clasifications RMC This notation will be assigned when a refrigerated cargo installation
has been constructed, installed and tested under LR's Special Survey and in accordance
with the relevant requirements of the Rules.
Clasifications RMC This notation will be assigned when the arrangements of the
refrigerated cargo installation have been found to be equivalent to Rule requirements,
and the installation has been tested in accordance with the relevant requirements of the
Rules.
‡ This symbol will be assigned to installations considered suitable for the
carriage of fruit. It indicates that the following parameters have been assessed and
found satisfactory:
-
The rate of air circulation and the air refreshing arrangements
through the refrigerated spaces or chambers, or to containers.
-
The temperature controls and monitoring arrangements.
-
The installation's capability to cool down a complete cargo of
fruit to its carrying temperature within a specified time. The symbol will also
be assigned to fishing vessels that have the refrigerating capacity to freeze
down their catch.
Clasifications RMC (LG) This notation will be assigned to a classed liquefied gas
carrier or tanker, in which reliquefaction or refrigeration equipment is approved and
fitted for cargo temperature and pressure control where the equipment has been
constructed, installed and tested in accordance with the relevant requirements of the
Rules.
Clasifications RMC (LG) This notation will be assigned to a classed liquefied gas
carrier or tanker, in which reliquefaction or refrigeration equipment is fitted for
cargo temperature and pressure control, where the equipment has been found equivalent to
Rule requirements and tested in accordance with the relevant requirements of the
Rules.
Lloyd’s RMC (BC) Assigned to a classed chemical tanker in which refrigeration
equipment has been constructed, installed and tested, in accordance with the relevant
requirements of the Rules.
Lloyd’s RMC (BC) Assigned to a classed chemical tanker where the equipment has
been found equivalent to Rule requirements and tested in accordance with the relevant
requirements of the Rules.
TC Assigned to a classed chemical tanker where the temperature control systems
have been found equivalent to Rule requirements and tested in accordance with the
relevant requirements of the Rules.
2.6.2 The
following class notations are associated with controlled atmospheres
and may be assigned as considered appropriate by the Classification
Committee, on application from Owners, see also
Pt 7, Ch 1 Controlled Atmosphere Systems:
(CA)
|
This notation may be assigned when a
ship is fitted with arrangements for maintaining airtightness in CA zones
and for the ready connection to a gas system in accordance with the relevant
requirements of the Rules.
|
CA (%O2, %CO2)
|
This notation may be assigned when a
ship is provided with a CA system which will achieve and maintain specified
ranges of oxygen and carbon dioxide levels in accordance with the relevant
requirements of the Rules.
|
RH
|
This notation may be assigned when a
ship can maintain a specified relative humidity in the CA zones.
|
RPA
|
Assigned to ships where
the Refrigeration Machinery for Provision Stores and Air-conditioning comply
with the applicable requirements of Pt 7, Ch 15 Refrigeration Systems and Equipment Serving Provision Stores and Air-Conditioning Installations.
|
Before assignment of any of the above
notations it is a prerequisite that the refrigeration installation
is assigned an RMC class notation.
2.6.3 The
following class notation is associated with the carriage of refrigerated
cargo containers and may be assigned as considered appropriate by
the Classification Committee, on application from Owners, see
also
Pt 7, Ch 10 Carriage of Refrigerated Containers:
CRC This notation may be assigned when a ship is provided with a ventilation
system which is approved, installed and tested in accordance with the relevant
requirements of the Rules.
2.6.5 The
class notation assigned will be maintained as long as the installation
is found, at the prescribed Periodical Surveys, to be in a fit and
efficient condition, and in accordance with the requirements of the
Rules.
2.6.6 The
Classification Committee will give consideration to ships engaged
on voyages of short duration, to installations of small capacity,
or to other special circumstances. In such cases the class may include
a service limitation or other restriction.
2.6.7 Refrigerating
installations designed to supply refrigerated air to insulated containers
in ships' holds aboard container ships, are eligible for classification.
The installation is to include the refrigerating machinery, supply
and return air ducting, and the flexible couplings between containers
and the duct system. Where the arrangements are such that cell air
conditioning is essential to the carriage of the containers, the air
conditioning equipment and/or insulation of the hold, deckheads, sides
and tank tops are to be included in the classification.
2.6.8 Other
methods of carrying refrigerated cargoes in containers aboard container
ships will be considered for classification on application.
2.7 Class notations (Environmental Protection)
2.7.1 The
following class notations are associated with the design and operation
of a ship and may be assigned as considered appropriate by the Classification
Committee, on application from the Owners:
ABN( )
|
This notation will be assigned where a
vessel has had its airborne noise measured and certified in accordance with
LR’s ShipRight Additional Design and Construction Procedure for the
determination of airborne noise emissions from marine vessels, and
the sound power and sound pressure are found to be less than the assessment
criterial limits it contains. The parentheses are to contain the characters
associated with the most stringent assessment criteria limits that the
airborne noise of the vessel satisfies.
|
ECO
|
This notation will be assigned when a
ship is designed and operated in accordance with the relevant requirements
of the Rules.
|
ECO(TOC)
|
This notation will be assigned when
the environmental protection arrangements are in accordance with the
requirements of another recognised classification society and are
essentially equivalent to Rule requirements and the ship is operated in
accordance with the relevant requirements of the Rules.
|
UWN-M
|
This notation will be assigned where
a vessel has had its underwater radiated noise measured and certified in
accordance with LR’s ShipRight Procedure Additional Design and
Construction Procedure for the Determination of a Vessel’s Underwater
Radiated Noise.
|
UWN-L( )
|
This notation will be assigned where a vessel has had its
underwater radiated noise measured and certified in accordance with LR’s
ShipRight Procedure Additional Design and Construction Procedure
for the Determination of a Vessel’s Underwater Radiated Noise and
the profile of the underwater radiated noise curve(s) are found to be
less than the limits contained in the ShipRight Procedure. The
parentheses are to contain the limit set in accordance with the ShipRight
Procedure and listed therein.
|
2.8 Descriptive notes
2.8.1 In addition to any class notations, an appropriate descriptive note may be
entered in column 6 of the Register Book indicating the type of ship in greater
detail than is contained in the class notation, and/or providing additional information
about the ship's design and construction. This descriptive note is not an LR class
notation and is provided solely for information.
2.8.2
ShipRight(). Where one or more of LR’s ShipRight procedures for the following
have been satisfactorily applied, then a descriptive note showing the associated
characters of the procedure(s) within brackets will, at the Owner’s request, be entered
in column 6 of the Register Book, preceded by the word ShipRight, e.g.
ShipRight(IHM, SERS). The requirements pertaining to these descriptive notes
and the ShipRight procedures are given in Pt 3, Ch 16 ShipRight Procedures for the Design, Construction and Lifetime Care of Ships and Pt 5, Ch 21 Requirements for Condition Monitoring and Condition-Based Maintenance Systems, or directly within the relevant ShipRight
Procedure document.
AM()
|
This
ShipRight descriptive note (Alarm Management) will be assigned where the
ship’s alarm management system complies with the relevant ShipRight
procedure.
For ships for the carriage of liquefied gases in
bulk the characters of the procedure are AM(C, LG) where:
- C indicates Cargo Alarms.
- LG indicates Liquified Gas.
|
BWMP()
|
This ShipRight
descriptive note (Ballast Water Management Plan) will be assigned, when the
requirements in accordance with the relevant ShipRight procedures have been
complied with. The descriptive note BWMP() with the extension of one
or more of the following associated supplementary characters shown in
brackets, detailing the method(s) used, may be assigned:
- S sequential method;
- F flow through method;
- D dilution method;
- T treatment method.
|
DIST()
|
This ShipRight
descriptive note (Machinery suitable for operation on Distillate Fuels) will
be assigned when specified machinery items are suitable for operation on
distillate fuels, in accordance with the relevant ShipRight procedures. The
DIST() descriptive note with the extension of one or more of the
following associated supplementary characters shown in brackets, detailing
the specified machinery items, may be assigned:
- M main engine(s);
- AB auxiliary engines and boiler;
- I incinerator;
- IG inert gas generator.
|
E
|
This ShipRight
descriptive note (Evidence) will be assigned, where evidence exists that
supporting calculations have been performed in accordance with hull
structural finite element and fatigue analysis procedures of a recognised
classification society. This descriptive note can be assigned to vessels
transferring class or to new builds where the design has been appraised by
another recognised classification society.
|
ES()
|
This ShipRight descriptive note
(Enhanced Scantlings) will be assigned, where scantlings in excess of the
approved Rule minimum are fitted at defined locations in accordance with the
relevant ShipRight procedures. The added thickness measurement in mm is to
be shown with a description of the location(s) in brackets e.g.
ShipRight(ES(+1 Strength Deck, +2 Bottom Shell)).
|
HCD1()
|
This ShipRight descriptive note
(Human-Centred Design Level 1) will be assigned when the development and
operation of specified ship system(s) has been carried out in accordance
with the process for ‘Level 1 – Reactive’ detailed in the ShipRight
procedure for Human-centred Design. The names of the systems which
meet the requirements will be listed as a suffix to the character, e.g.
HCD1(mooring area, ECDIS).
|
IHM
|
This ShipRight
descriptive note (Inventory of Hazardous Materials) will be assigned when
the requirements in accordance with the relevant ShipRight procedures have
been complied with.
|
MPMS()
|
This ShipRight descriptive note
(Machinery Planned Maintenance Scheme) will be assigned where an Owner
operates, as part of the Continuous Survey Machinery (CSM) cycle, a
Machinery Planned Maintenance Scheme which is approved in accordance with
LR’s ShipRight Procedures for Machinery Planned Maintenance and Condition
Monitoring. The descriptive note will indicate that procedures and
documentation are in place to control and record the inspection and
maintenance routines of all machinery and equipment in the ship.
- CM This ShipRight descriptive note (Condition
Monitoring) will be assigned where an Owner operates, as part of the
Continuous Survey Machinery (CSM) cycle, a Machinery Planned
Maintenance Scheme which uses monitoring techniques and equipment are
used to record the condition against agreed acceptable limits and the
scheme is approved in accordance with LR’s ShipRight Procedures for
Machinery Planned Maintenance and Condition Monitoring. The
descriptive note will indicate that equipment, procedures and
documentation are in place to monitor, control and record the physical
and operational condition of the equipment on the ship and control the
maintenance routines accordingly. For the design and installation of
machinery condition monitoring systems which form part of a Machinery
Planned Maintenance Scheme approved by LR for the assignment of the
descriptive note, the requirements of Pt 5, Ch 21 Requirements for Condition Monitoring and Condition-Based Maintenance Systems
are applicable.
- PT This ShipRight descriptive note (Predictive
Techniques) will be assigned where an Owner operates, as part of the
Continuous Survey of Machinery (CSM) cycle, a Machinery Planned
Maintenance Scheme which uses the output from machine learning and
complex algorithms to determine acceptability for continued service
and maintenance requirements and the scheme is approved in accordance
with LR’s ShipRight Procedures for Machinery Planned Maintenance and
Condition Monitoring. The descriptive note will indicate that
equipment, procedures and documentation are in place to monitor,
control and review the output from machinery maintenance systems using
Predictive Techniques. The requirements of Pt 5, Ch 21 Requirements for Condition Monitoring and Condition-Based Maintenance Systems
are applicable.
- RBM This ShipRight descriptive note (Risk Based
Maintenance) will be assigned where an Owner operates, as part of the
Continuous Survey Machinery (CSM) cycle, a Machinery Planned
Maintenance Scheme based on the use of Risk Based Maintenance (RBM)
which is approved in accordance with LR’s ShipRight Procedures for
Machinery Planned Maintenance and Condition Monitoring. The
descriptive note will indicate that procedures and documentation are
in place to control and record the inspection and maintenance routines
of machinery and equipment based on the output from a Risk Based
study. The Scheme is to be based on a risk assessment and an RBM
In-Service Inspection Plan, both approved by LR.
- RCM This ShipRight descriptive note (Reliability
Centred Maintenance) will be assigned where an Owner operates, as part
of the Continuous Survey Machinery (CSM) cycle, Machinery Planned
Maintenance Scheme based on the use of Reliability Centred Maintenance
which is approved in accordance with LR’s ShipRight Procedures for
Machinery Planned Maintenance and Condition Monitoring. The
descriptive note will indicate that procedures and documentation are
in place to control and record the inspection and maintenance routines
of all machinery and equipment in the ship, and that they are based on
acceptable and applicable methodology.
|
PCWBT()
|
This ShipRight
descriptive note (Protection Coatings in Water Ballast Tanks) will be
assigned, to indicate that all sea-water ballast spaces having boundaries
formed by the hull envelope have a corrosion protection coating applied, and
that the coating remains efficient and is maintained in good condition. The
month and year that the coating is approved is to be appended to the
descriptive note within brackets.
|
SCM
|
This ShipRight descriptive note
(Screwshaft Condition Monitoring) will be assigned where an Owner adopts the
requirements for monitoring of the screwshaft. The descriptive note will
indicate that equipment and procedures are in place to determine the
physical and operational condition of that equipment.
|
SEA()
|
This descriptive note (Ship Event
Analysis) will be assigned, where hull surveillance systems for monitoring
of the ship’s hull girder stresses and motions have been fitted and are in
compliance with the relevant ShipRight procedures. The ShipRight descriptive
note is to be appended by HSS followed by the number of strain gauges
fitted shown in brackets. In addition the extension of one or more of the
following associated supplementary characters may be shown e.g.
ShipRight(SEA(HSS-2, VDR)):
- L The display of the relevant information in the
cargo control area;
- M The display and recording of the ship’s
motion;
- N The facility to display and record navigational
information;
- VDR An interface with the ship's voyage data
recorder system to enable the recording of hull stress, ship motion
and hull pressure information.
|
SEA ICE
|
This ShipRight
descriptive note (Ship Event Analysis Ice) will be assigned when the ship
has been provided with a hull surveillance system that can display and
record local ice load induced stresses from a series of strain gauges in the
bow region.
|
SERS
|
This
ShipRight descriptive note (Ship Emergency Response Service) will be
assigned when a Ship is registered with LR’s Ship Emergency Response
Service.
|
ShaftRight()
|
This ShipRight
descriptive note will be assigned when the main propulsion shafting
alignment has been carried out in accordance with ShipRight Procedure
ShaftRight: Main Propulsion Shafting Alignment Procedure, which LR
considers to be best practice during design, construction and trials. The
ShaftRight() descriptive note with the extension of one or more of
the following associated supplementary characters shown in brackets, may be
assigned:
- E Existing design. Applicable to vessels having
main propulsion shafting and hull arrangements which have been
previously implemented and, for which, proven satisfactory service
experience is demonstrated;
- N New design. Applicable to a new main propulsion
shafting arrangement within a new, or previously implemented, hull
design.
|
SRtP
|
This ShipRight
descriptive note (Safe Return to Port and Orderly Evacuation) is to be
applied where the design appraisal and survey of the vessel has been
performed in accordance with the relevant ShipRight procedures for vessels
required to comply with Safe Return to Port and Orderly Evacuation.
|
TCM
|
This ShipRight descriptive note (Main
Steam Turbine Condition Monitoring) will be assigned where an Owner adopts
the requirements for monitoring of the main steam turbine. The descriptive
note will indicate that equipment and procedures are in place to determine
the physical and operational condition of that equipment. Further
information is provided in the LR document ShipRight Procedure Machinery
Planned Maintenance and Condition Monitoring.
|
ThCM
|
Thruster Condition Monitoring. This
ShipRight descriptive note (Thruster Condition Monitoring) will be assigned
where an Owner adopts the requirements for monitoring of selected Thrusters
and/or Podded Propulsors. The descriptive note will indicate that equipment
and procedures are in place to determine the physical and operational
condition of that equipment. Further information is provided in the LR
document ShipRight Procedure Machinery Planned Maintenance and Condition
Monitoring.
Note Not
applicable where a single thruster, or podded propulsor, is solely
responsible for the propulsion and/or steering of the
vessel.
|
VECS
|
This
ShipRight descriptive note (Vapour Emission Control System) will be assigned
to a ship that has a vapour emission control system fitted which has been
designed and constructed in accordance with the requirements of USCG 46, CFR
39 or the IMO Standards for Vapour Emission Control Systems (MSC Circular
585).
|
VECS-L
|
This
ShipRight descriptive note (Vapour Emission Control System – Lightering)
will be assigned to a ship that has a vapour emission control system that
complies with the requirements for the VECS Descriptive Note and
which has also been designed and constructed to meet the requirements for
vapour balancing in accordance with USCG 46, CFR 39.40 for service vessels.
If a ship has been assigned the ECO notation then it will not be
eligible for the VECS-L Descriptive Note. Instead, VECS for
lightering will be referenced in the ECO notation, i.e.
ECO(VECS-L).
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2.8.4 Where container securing arrangements are designed and constructed in
accordance with Pt 3, Ch 14 Cargo Securing Arrangements, but where the Initial and Periodical Survey
requirements for loose fittings are not requested, the ship will be eligible to be
assigned the descriptive note CSA (container securing arrangement) and for an
entry to be made in column 6 of the Register Book.
2.8.5
EDD. Vessel is eligible for the Owner/Operator to apply to the Flag
Administration for the vessel to be placed on a pilot Extended Dry-Docking regime. The
relevant Flag Administration may elect to impose requirements additional to those
defined as per this descriptive note. Vessels are to comply with the LR Guidance notes
on Extended Dry- Dockings.
2.8.6
STV. Where a sailing vessel is used for the offshore training of cadets or
trainee seamen, a sailing training vessel STV descriptive note may be entered in
column 6 of the Register Book.
2.8.7 The following descriptive note is associated with low flashpoint fuelled
vessels and may be assigned as considered appropriate by the Classification
Committee:
GR(yy,z)
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Ships
complying with particular aspects of these Rules may be eligible for
assignment of LR’s gas or other low-flashpoint fuel Gas Ready descriptive
note, GR(yy,z) where ‘yy’ identifies the type of fuel (consistent
with the LFPF notation) and ‘z’ identifies the particular aspects
which have been approved or approved and installed. This descriptive note is
not an LR class notation and is provided solely for information. If a ship
has been assigned the LFPF notation then it will not be eligible for
the GR descriptive note for the same type of fuel.
With
reference to ‘z’, the following identifiers are used:
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A
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Approval in Principle. The design of
the fuel system has been approved in principle.
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S
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Structural Reinforcement Installed.
Enhanced structural reinforcement using appropriate materials to support the
proposed fuel storage tank has been installed in accordance with an approved
design and surveyed accordingly.
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T
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Tank Installed. The fuel storage
tank, all tank valves including the tank master isolation valve, fuel
venting arrangements and, where applicable, the fuel storage hold space,
structural fire protection and ventilation arrangements for under deck tank
locations have been built under survey and installed in accordance with an
approved design and surveyed accordingly.
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P
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Piping Installed. Piping
and equipment associated with the fuel system, e.g. pipes, pumps, valves,
processing equipment etc. from the bunker manifold to the fuel consumers,
bunkering arrangements and associated access arrangements including
structural fire protection as applicable, have been installed in accordance
with an approved design and surveyed accordingly.
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E
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Equipment and Machinery
Installed. Equipment and machinery which is intended to be supplied by the
fuel system has been installed in accordance with the approved design and
surveyed accordingly. Additional letters, in brackets, identify the items of
equipment or machinery installed:
M - Main engine(s)
A - Auxiliary engine(s)
B –
Boiler(s)
I – Incinerator(s)
T – Gas
Turbine(s)
F – Fuel cell generator(s)
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2.8.8 EGCS-R(). Assigned to ships with the extension of one or more of the
following associated characters shown in brackets, detailing the aspects of design and
construction that are prepared for installation of SOx emissions abatement
plant for combustion machinery in accordance with LR’s Rules and Regulations in force on
the date of ‘contract for construction’ (see
Pt 5, Ch 24, 1.2 Class notation and descriptive note 1.2.1 to Pt 5, Ch 24, 1.2 Class notation and descriptive note 1.2.3 for more
information):
A Preliminary assessment of the proposed SOx emissions
abatement plant including its arrangement on board has been completed
satisfactorily;
S Enhanced structural reinforcement and structural modifications
necessary for the function of the proposed SOx emissions abatement plant have
been fitted under survey;
T The relevant tank(s) needed for operation of the proposed
SOx emissions abatement plant (e.g. chemical and/or residue storage tanks
as applicable) have been installed under survey.
2.8.9 EGCN-R(). Assigned to ships with the extension of one or more of the
following associated characters shown in brackets, detailing the aspects of design and
construction that are prepared for installation of NOx emissions abatement
plant for combustion machinery in accordance with LR’s Rules and Regulations in force on
the date of ‘contract for construction’ (see
Pt 5, Ch 24, 1.2 Class notation and descriptive note 1.2.4 to Pt 5, Ch 24, 1.2 Class notation and descriptive note 1.2.6 for more
information):
A Preliminary assessment of the proposed NOx emissions abatement plant
including its arrangement on board has been completed satisfactorily;
S Enhanced structural reinforcement and structural modifications necessary for
the function of the proposed NOx emissions abatement plant have been fitted
under survey;
T The relevant tank(s) needed for operation of the proposed NOx
emissions abatement plant (e.g. chemical tanks) have been installed under survey in
accordance with approved design.
2.8.10 OHCF() This descriptive note will be assigned to general cargo ships
where the class notation Hatch Covers may be omitted in Hold (No(s) …) where the
longitudinal strength has been assessed using flooded strength limits, see
Pt 3, Ch 9, 10.3 Longitudinal strength 10.3.3. The wave height limitation for
loading conditions where hatch covers are omitted is to be appended to the descriptive
note within brackets.
2.8.11 Single pass loading This descriptive note may be assigned to ore
carriers, where the maximum permissible cargo intake per cargo hold may be loaded in a
single loading pour, see
Pt 4, Ch 11, 13 Single pass loading.
2.8.12 READY(). When satisfactory preparation has been made at the time of completion
and delivery or refit of the vessel for a structure, a system or equipment which is
subject to classification, then this descriptive note, showing the associated
classification characters within brackets will, at the Owner’s request, be entered in
the Register Book preceded by the word READY, e.g.
READY(RIGGING).
If the asset is READY() for multiple notations the descriptive note will appear
as READY(notation 1, notation 2).
Satisfactory preparation includes but is not limited to:
- Clear and comprehensive definition of the intended structure, system or equipment in
line with classification requirements.
- The interface boundary delimiting the physical and operational boundary is clearly
defined and sets out the components that are omitted during construction.
- A list of interface requirements even though these are not typically part of the
requirements for classification. These are to be accompanied by technical solutions
or reference to design features that show how each of the interface requirements is
met. The interface location and requirements are to be jointly developed by the
Client and LR.
- Interface requirements may be quantitative or qualitative. Suitable safety criteria
are to be defined.
- The design of the asset fully incorporates the intended structure, system or
equipment. This is to be verified during appraisal.
- As far as practicable, the fitting of the omitted structure, system or equipment is
not to depend on the removal of other structures, systems or equipment but should
only depend on the addition of the omitted structure, system or equipment.
Each of the design documents which are required for classification is assessed as if the
structure, system or component is fitted. If details of the system are unknown at the
time of application for the descriptive note, design constraints may, on occasion, be
confirmed by an Approvall in Principle (AiP). This course of action will be captured in
the descriptive note in the following manner: READY(NOTATION(A)) where A
indicates the AiP.
Additional interface documents are assessed with particular attention to the
practicality and feasibility of the boundary definition.
Construction is carried out as per appraised plans omitting the structure, system or
equipment set out by the interface boundary.
The READY() descriptive note is awarded based on the documented verification of
the above requirements. Appraisal and survey by LR will be carried out as far as
practicable for the interface arrangements and, if applicable, the partially installed
system.
Notations are included in the list of those eligible for the READY() descriptive
note at the discretion of LR.
2.9 Application notes
2.9.1
Propelling
and essential auxiliary machinery includes machinery, equipment
and systems installed for the ship to be under seagoing conditions
and that are necessary for the following:
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Maintaining the
watertight and weathertight integrity of the hull and spaces within
the hull.
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The safety of
the ship, machinery and personnel on board.
-
The functioning
and dependability of propulsion, steering and electrical systems.
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The operation
and functioning of control engineering systems for the monitoring
and safety of propulsion and steering systems.
-
The operation
and functioning of emergency machinery and equipment.
2.9.2
Manufacturer's
certificate for assignment of the
LMC notation. Acceptance of the manufacturer's
certificate for items of machinery for propulsion (including propulsion
gearing with single input/output arrangements) and for electrical
power generation and for other auxiliary machinery for essential services
is subject to the following:
-
The ship is a
cargo ship of less than 500 gross tonnage or is a ship of 500 gross
tonnage or greater and is not required to comply with international
conventions applicable to a ship with unrestricted service.
-
Propulsion power is provided by engines or gas turbines which have
been type approved in accordance with LR requirements for marine application.
-
Electrical power is provided by generators driven by engines or gas
turbines which have been type approved in accordance with LR requirements for
marine application.
-
The design and
manufacture standards for all machinery and associated engineering
systems are the applicable LR Rules.
-
The machinery
and equipment is manufactured under a recognised quality control system.
-
Propellers, propulsion
shafting and multiple input/output gearboxes are not included within
the scope of propulsion arrangements for acceptance of a manufacturer's
certificate.
2.9.3
Manufacturer's
certificate for assignment of the MCH notation.
Acceptance of the manufacturer's certificate for propelling and essential
auxiliary machinery is subject to the following:
-
The ship is a
cargo ship of less than 500 gross tonnage or is a ship of 500 gross
tonnage or greater and is not required to comply with the international
conventions applicable to a ship with unrestricted service.
-
Propulsion power is provided by engines or gas turbines which have
been type approved in accordance with LR requirements for marine application.
-
Electrical power is provided by generators driven by engines or gas
turbines which have been type approved in accordance with LR requirements for
marine application.
-
The power of any prime mover is less than 2,250 kW and the cylinder
bore or any engine is not greater than 300 mm.
-
The design and
manufacture standards for machinery and associated systems are the
applicable LR Rules or other marine standards acceptable to LR.
-
The machinery and equipment is manufactured under a recognised
quality control system in accordance with the requirements of Pt 5, Ch 1, 1.3 Alternative approach for product assurance.
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Individual components
manufactured under Pt 1, Ch 2, 2.9 Application notes 2.9.3.(f) are
to be delivered with a manufacturer’s statement confirming that
the scantlings comply with the applicable LR Rule requirements.
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