A

AA	Always Afloat
AAAA	Always Afloat, Always Accessible
AAOSA	Always Afloat Or Safe Aground
AAR	Against All Risks
AARA	Always Accessible or Reachable on Arrival
AB	Able Seaman
ABS	American Bureau of Shipping
AC	Alternating Current (electricity)
ACV	Air Cushion Vehicle
AD	Area Differential
ADF	Automatic Direction Finder
AF	Anti-Fouling
AFFF	Aqueous Film Forming Foam
AFRA	Average Freight Rate Assessment
AG	Arabian Gulf
AGW	Actual Gross Weight
	All Going Well
AHTS	Anchor Handling Tug and Supply Vessel
AIS	Automatic Identification System
ALERT	Automatic Life-saving Emergency Radio Transmitter
ALRS	Admiralty List of Radio Signals
AMSL	Above Mean Sea Level
AMVER	Automated Mutual Assistance Vessel Rescue System
AMWELSH	Americanised Welsh Coal Charter party
ANERA	Asia-North America Eastbound Rate Agreement
ANOP	Articles Not Otherwise Provided for
ANSI	American National Standard Institute
AO	Awaiting Orders
	And Other
AOB	Any One Bottom
AOH	After Office Hours
AOLOC	Any One Location
AOR	Atlantic Ocean Region
AOS	Any One Steamer
AOV	Any One Vessel
AP	All Purposes
	Additional Premium
	Aft Perpendicular
API	American Petroleum Institute
APS	Arrival Pilot Station
APT	Aft Peak Tank
ARA	Antwerp - Rotterdam - Amsterdam
ARPA	Automatic Radar Plotting Aid
A/S	Alongside
ASAP	As Soon As Possible
ASBA	The Association of Shipbrokers and Agents (USA) Incorporated, New York
ASCII	American Standard Code for Information Interchange
ASPW	Any Safe Port in the World
ASTM	American Society of Testing & Materials
ATA	Actual Time of Arrival
ATD	Actual Time of Departure
ATDN	Any Time Day & Night
ATDNSHINC	Anytime Day/Night Sundays & Holidays Included
ATK	Aviation Turbine Kerosene
ATS	All Time Saved
ATSBE	All Time Saved Both Ends
ATSDO	All Time Saved Discharging Only
ATUTC	Actual Times Used To Count
AUV	Autonomous Underwater Vehicle
AVGAS	Aviation Gasoline
AVR	Automatic Voltage Regulator
AVTAG	Aviation Turbine Gasoline
AWIWL	Always Within Institute Warranty Limits
AWVNS	Always Within Vessel`s Natural Segregation
AWRI	Additional War Risk Insurance

B

BA	British Admiralty
BAF	Bunker Adjustment Factor
BB	Below Bridge
	Ballast Bonus
	Bare Boat
	Break Bulk/ Breaking Bulk
	Bulbous Bow
BBB	Before Breaking Bulk
BBC	Bare Boat Charter
BC	Code of Safe Practice for Solid Bulk Cargoes
BCH	Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk
BCM	Bow to Centre of Manifold
BCO	Beneficial Cargo Owner
BD	Bar Draught
BDC	Bottom Dead Centre
BDI	Both Dates Inclusive
B/E	Break-Even
BENDS	Both Ends
BFI	Baltic Freight Index
BHP	Brake Horse Power
BI	Both Inclusive
BIC	Bureau International des Containers (International Container Bureau)
BIFFEX	Baltic International Freight Futures Index
bimco	The Baltic and International Maritime Council
BKR	Bulgarski Koraben Registar (Bulgarian Register of Shipping)
B/L	Bill of Lading
BLU	Code of Practice for the Safe Loading and Unloading of Bulk Carriers
BN	Booking Note
BOA	Berthing On Arrival
BOB	Bunkers On Board
	Balance On Board
BOD	Bunkers On Delivery
BOFFERS	Best Offers
BOL	Bill Of Lading
BOP	Blow-out Preventer
BOR	Bunkers On Redelivery
B/P	Bills Payable
B/R	Bills Receivable
BROB	Bunkers Remaining On Board
BS	Bunker Surcharge
BSC	British Shippers` Council
BSI	British Standards Institution
BST	British Standard Time
	British Summer Time
BT	Berth Terms
BV	Bureau Veritas
BW	Brackish Water
	Ballast Water
BWAD	Brackish Water Arrival Draught
BWDD	Brackish Water Departure Draught
BWT	Ballast Water Tank

C

CABAF	Currency And Bunker Adjustment Factor
CAF	Currency Adjustment Factor
CBFT	Cubic Feet
CBM	Cubic Metres
	Conventional Buoy Mooring
CBR	Commodity Box Rate
CBS	Cyprus Bureau of Shipping
CBT	Clean Ballast Tank
CC	Cubic Capacity
	Cubic Centimetres
	Continuation Clause
CCG	Canadian Coast Guard
CCS	China Classification Society
CD	Customary Despatch
C/E	Chief Engineer
CENSA	Council of European and Japanese National Shipowners Association
CES	Coast Earth Station
CFM	Container Flow Management
CFR	Cost and Freight
CFS	Container Freight Station
CFT	Cubic Feet
CG	Centre of Gravity
CGA	Cargo`s proportion of General Average
CHABE	Charterer`s Agents Both Ends
CHOPT	Charterer`s Option
CIF	Cost, Insurance & Freight
CIF&E	Cost, Insurance, Freight & Exchange
CIF&I	Cost, Insurance, Freight & Interest
CIFC	Cost, Insurance, Freight and Commission
CIFC&I	Cost, Insurance, Freight, Commission & Interest
CIM	Convention Internationale Concernant le Transport des Marchandises par Chemin de Fer
CIP	Carriage and Insurance Paid to
	Calling In Port
CIQ	Customs Immigration Quarantine
CIT	Chartered Institute of Transport
CLP	Container Load Plan
CMI	Comit? Maritime International
CMR	Convention Marchandise Routiers
C/N	Consignment Note
	Cover Note
	Credit Note
C/O	Chief Officer
	Care Of
CLC	Civil Liability Convention of 1969
COA	Contract Of Affreightment
COACP	Contract Of Affreightment Charter Party
COB	Close Of Business
COC	Certificate Of Competency
	Carrier Owned Container
COD	Cash On Delivery
COF	Certificate Of Fitness
COFC	Container On Flat Car
COGS	Carriage of Goods by Sea
COGSA	Carriage of Goods by Sea Act
COMBIDOC	Combined Transport Document
COP	Customs Of the Port
COT	Cargo Oil Tank
COW	Crude Oil Washing
C/P	Charter Party
CPD	Charterers Pay Dues
CPP	Clean Petroleum Products
	Controllable Pitch Propeller
CPT	Carriage Paid To
CQD	Customary Quick Despatch
CR	China Corporation Register of Shipping
CROB	Cargo Remaining On Board
CRS	Croatian Register of Shipping
CSC	International Convention for Safe Containers
CSM	Container Slot Management
CSO	Company Security Officer
CSR	Chech and Slovak Ship`s and Industrial Register
	Continuous Service Rate
CST	Central Standard Time
	Centistoke
CT	Conference Terms
CTL	Constructive Total Loss
CTO	Combined Transport Operator
CUFT	Cubic Feet
CVs	Consecutive Voyages
CY	Container Yard

D

DA	Discharge Afloat
DAP	Days All Purposes
DAS	Docking Aid System
DB	Double Bottom
DBT	Double Bottom Tank
DC	Direct Current
D/D	Days After Date
	Delivered At Docks
DD	Daily Discharge
	Dry Docking
DDC	Destination Delivery Charge
DDP	Delivery Duty Paid
DDU	Delivery Duty Unpaid
DEL	Delivery
DEM	Demurrage
DEQ	Delivered Ex Quay
DES	Delivered Ex Ship
DESP	Despatch
DG	Dangerous Goods
DGN	Dangerous Goods Note
DGPS	Differential Global Positioning System
DHD	Demurrage Half Despatch
DHDATSBE	Demurrage Half Despatch on All Time Saved Both Ends
DHDWTSBE	Demurrage Half Despatch on Working Time Saved Both Ends
DIC	Delivered In Charge
DISPORT	Discharge Port
DIST	Distance
DKVN	Vietnam Register of Shipping
DLOSP	Dropping Last Outward Sea Pilot
DNV	Det Norske Veritas (Norwegian Classification Society)
DO	Diesel Oil
DOC	Document Of Compliance
DOP	Dropping Outward Pilot
DOSP	Dropping Outward Sea Pilot
DP	Dynamic Positioning
DPP	Dirty Petroleum Products
DR	Dead Reckoning
DRC	Daily Running Cost
DSC	Digital Selective Calling
DSHA	Dangerous Substance in Harbour Area (Regulations)
DT	Deep Tank
DWAT	Deadweight All Told
DWCC	Deadweight Cargo Capacity
DWCT	Deadweight Cargo Tonnage
DWT	Deadweight

E

EASC	European Air Shippers` Council
EC	East Coast
ECDIS	Electronic Chart Display and Information System
ECS	Electronic Charting System
ECSA	East Coast South America
ECSI	Export Cargo Shipping Instructions
ECTU	European Council of Transport Users
EDH	Efficient Deck Hand
EDI	Electronic Data Interchange
EDIFACT	Electronic Data Interchange For Administration, Commerce and Transport
EDP	Early Departure Procedure
EEBD	Emergency Escape Breathing Device
EHC	Equipment Handover Charge
EHP	Effective Horse Power
EITC	European Inland Transport Council
EIU	Even If Used
ELSA	Emergency Life Saving Apparatus
EMF	Electromotive Force
ENC	Electronic Navigation Chart
EOP	End Of Passage
EOSP	End Of Sea Passage
EPIRB	Emergency Position Indicating Radio Beacon
ER	Engine Room
ESC	European Shippers` Councils
ESD	Emergency Shut Down
ESPO	European Sea Ports Organisation
ETA	Expected Time of Arrival
ETB	Expected Time of Berthing
ETC	Expected Time of Completion
ETCD	Expected Time of Completion & Departure
ETD	Expected Time of Departure
ETR	Expected Time of Readiness
ETS	Expected Time of Sailing
EXW	Ex Works

F

FA	Free Alongside
FAA	Free of All Average
FAC	Fast As Can
	Forwarding Agent`s Commission
FACCOP	Fast As Can, Custom Of Port
FAF	Fuel Adjustment Factor
FAK	Freight All Kinds
FAOP	Full Ahead On Passage
FAQ	Fair Average Quality
FAS	Free Alongside Ship
FBL	FIATA Bill of Lading
F&CC	Full And Complete Cargo
FC	Free of Capture
FCA	Free Carrier
FCL	Full Container Load
FCAR	Free of Claim for Accident Reported
FCR	Forwarder`s Certificate of Receipt
FCS	Free of Capture and Seizure
FCT	Forwarder`s Certificate of Transport
F&D	Freight & Demurrage
FD	Free Discharge
	Free Despatch
	Forced Draught
FD&D	Freight Demurrage And Defence
FDD	Freight Demurrage Deadfreight
FEFC	Far East Freight Conference
FEMAS	Federation of European Maritime Associations of Surveyors and Consultants
FERIT	Far East Regional Investigation Team
FEU	Forty-foot Equivalent Unit
FFA	Free From Alongside
	Fire Fighting Appliances
FFI	(FIATA) Forwarding Instructions
FGA	Free of General Average
FHEX	Fridays and Holidays Excluded
FHINC	Fridays and Holidays Included
FI	Free In
FIATA	International Federation of Forwarding Agents Associations
FIB	Free Into Barge
	Free Into Bunker
FILO	First In Last Out
	Free In Liner Out
FILTD	Free In Liner Terms Discharge
FIO	Free In and Out
FIOLS	Free In and Out, Lashed, Secured
FIOLS&D	Free In and Out, Lashed, Secured and Dunnaged
FIOS	Free In and Out Stowed
FIOST	Free In and Out Stowed and Trimmed
FIOT	Free In and Out Trimmed
FIT	Free In Truck
	Free In Trimmed
FIW	Free In Wagon
FLT	Fork Lift Truck
	Full Liner Terms
FMC	Federal Maritime Commission
FMS	Fathoms
FO	Fuel Oil
	Firm Offer
	For Orders
	Free Out
	Free Overside
FOB	Free On Board
FOB`S	Free On Board Charges
FOC	Free On Car
	Flag Of Convenience
FOD	Free on Damage
FONASBA	The Federation of National Associations of Shipbrokers and Agents
FOQ	Free On Quay
FOR	Free On Rail
FOS	Fuel Oil Surcharge
FOT	Free On Truck
	Fuel Oil Tank
FOW	Free On Wharf
	Free On Wagon
	First Open Water
FPA	Free Of Particular Average
FPDSO	Floating Production, Drilling, Storage and Offloading
FPSO	Floating Production, Storage and Offloading
FPT	Fore Peak Tank
FROF	Fire Risk On Freight
FRP	Fibreglass Reinforced Plastic
FRT	Freight
FSO	Floating Storage & Offloading
FSU	Floating Storage Unit
FTW	Free Trade Wharf
FW	Fresh Water
FWA	Fresh Water Allowance
FWAD	Fresh Water Arrival Draught
FWDD	Fresh Water Departure Draught
FWE	Finished With Engine
FYG	For Your Guidance
FYI	For Your Information
FYT	Follow Your Telex

G

GA	General Arrangement
	General Average
GATT	General Agreement on Tariff and Trade
G/B	Grain/Bales
G-H	Gibraltar-Hamburg
GL	Germanischer Lloyd (German Classification Society)
GLONASS	Global Navigation Satellite System
GMDSS	Global Maritime Distress and Safety System
GMT	Greenwich Meridian Time
GNS	German North Sea
GO	Gas Oil
GOC	General Operator Certificate
GP	General Purpose
GPS	Global Positioning System
GPU	Generator Protection Unit
GRI	General Rate Increase
GRT	Gross Registered Tonnage
GT	Greenwich Time
	Gross Tonnage
GW	Gale Warning
	Gross Weight

H

HA	Hatch
HAT	Highest Astronomical Tide
HBF	Harmless Bulk Fertiliser
HD	Half Despatch
HDLTSBENDS	Half Despatch Lay Time Saved Both Ends
HFO	Heavy Fuel Oil
H-H	Harve-Hamburg
HHDW	Heavy Handy Deadweight
HHDWS	Heavy Handy Deadweight Scrap
HHW	Higher High Water
HHWI	Higher High Water Interval
HHWL	Highest High Water Level
HLA	Heavy Lift Additional
HLW	Higher Low Water
HLWI	Higher Low Water Interval
HMB	Heavy Motor Blocks
HMS	Heavy Metal Scraps
	Her Majesty`s Ships
HO	Holds
HP	Horse Power
HR	Hellenic Register of Shipping
HSC	International Code for Safety of High Speed Craft
HSD	High Speed Diesel
HSS	Heavy Grains, Soyabeans and Sorghums
HTS	High Tensile Steel
HW	High Water
HWI	High Water Interval
HWLI	High Water Lunitidal Interval
HWM	High Water Mark
HWN	High Water Neaps
HWONT	High Water Ordinary Neap Tide
HWOST	High Water Ordinary Spring Tide
HWS	High Water Spring
HWT	High Water Time

I

IACS	International Association of Classification Societies
IAF	Inflation Adjustment Factor
IALA	International Association of Lighthouse Authorities
IAPH	International Association of Ports and Harbours
IAPP	International Air Pollution Prevention
IBC	International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk
IBIA	International Bunker Industry Association Ltd
IBS	Integrated Bridge System
ICC	International Chamber of Commerce
	Institute Cargo Clauses
ICS	International Chamber of Shipping
ICS	Institute of Chartered Shipbrokers
IDL	International Date Line
IFF	Institute of Freight Forwarders
IFO	Intermediate Fuel Oil
IFP	Interim Fuel Participation factor
IGC	International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk
IGS	Inert Gas System
IHO	International Hydrographic Organisation
IHP	Indicated Horse Power
ILOHC	In Lieu Of Hold Cleaning
IMB	International Maritime Bureau
IMDG	International Maritime Dangerous Goods code
IMO	International Maritime Organisation
IMOSAR	IMO Search and Rescue manual
IMPA	International Marine Purchasing Association
INF	International Code for the Safe Carriage of Packaged Irradiated Nuclear Fuel, Plutonium and High-Level Radioactive Wastes on Board Ships
INMARSAT	International Maritime Satellite Organisation
INTERTANKO	International Association of Independent Tanker Owners
IOPP	International Oil Pollution Prevention
IOR	Indian Ocean Region
IP	Institute of Petroleum
IRO	In Respect Of
IRS	Indian Register of Shipping
ISDN	Integrated Services Digital Network
ISF	International Shipping Federation
ISGOTT	International Safety Guide for Oil Tankers and Terminals
ISM	International Safety Management code
ISMA	International Ship Managers Association
ISO	International Organisation for Standardisation
ISPP	International Sewage Pollution Prevention
ISPS	International Ship and Port Facility Security Code
ITF	International Transport Workers` Federation
ITIC	International Transport Intermediaries` Club
IU	If Used
IUHTAUTC	If Used, Half Time Actually To Count
IUMI	International Union of Marine Insurance
IWL	Institute Warranty Limits
IWO	In Way Of

J

J & WO	Jettison & Wash Overboard
JIT	Just In Time

K

KD	Knocked Down
KR	Korean Register of Shipping
KT	Kiloton
KTS	Knots
KVA	Kilovolt-Ampere
KW	Kilowatt

L

LASH	Lighter Aboard Ship
LAT	Latitude
	Lowest Astronomical Tide
LAY/CAN	Laydays/Cancelling
LBP	Length Between Perpendiculars
LCL	Less than Container Load
	Loose Container Load
L/D	Loading/Discharging
LCF	Longitudinal Centre of Flotation
LDD	Loaded
LDF	Light Distillate Feedstock
LDG/UNLDG	Loading/Unloading
LDPT	Load Port
LES	Land Earth Station
LFL	Lower Flammable Limit
LHW	Low High Water
LHWI	Low High Water Interval
LIFO	Liner In Free Out
LISCR	Liberian International Ship & Corporate Registry
LLA	Long Length Additional
LLW	Lower Low Water
LLWI	Lower Low Water Interval
LLWL	Lowest Low Water Level
LM	Lane Metre
LMSS	Land Mobile Satellite Service
LNG	Liquefied Natural Gas
LO	Lubricating Oil
LO/LO	Lift On/Lift Off
LOA	Length Overall
LOF	Lloyd`s Open Form
LOI	Letter Of Indemnity
LOP	Line Of Position
LPG	Liquefied Petroleum Gas
LR	Lloyd`s Register of Shipping
LS	Lump Sum
LSA	Life Saving Appliances
LS&D	Landing, Storage and Delivery Charge
LT	Local Time
	Long Ton
	Liner Terms
	Lumber Tropical (loadline)
LTF	Lumber Tropical Fresh water (loadline)
LW	Lumber Winter (loadline)
LWL	Load Water Line
	Low Water Level
LWNA	Lumber Winter North Atlantic load line
LWONT	Low Water Ordinary Neap Tide
LWOST	Low Water Ordinary Spring Tide

M

MARPOL	International Convention for the Prevention of Pollution from Ships
MBL	Minimum Breaking Load
MCA	Maritime and Coastguard Agency
MCO	Maximum Continuous Output
MCR	Maximum Continuous Rating
MDO	Marine Diesel Oil
MED	Mediterranean
MEES	Middle East Emergency Surcharge
MEPC	Maritime Environment Protection Committee
MERSAR	Merchant Ship Search and Rescue manual
MES	Mobile Earth Station
MFO	Marine Fuel Oil
MGO	Marine Gas Oil
MGW	Maximum Gross Weight
MHHW	Mean Higher High Water
MHHWS	Mean Higher High Water Spring
MHLW	Mean Higher Low Water
MHW	Mean High Water
MHWI	Mean High Water Interval
MHWN	Mean High Water Neaps
MHWS	Mean High Water Springs
MLB	Mini Land Bridge
MLD	Moulded
MLHW	Mean Lower High Water
MLLW	Mean Lower Low Water
MLLWS	Mean Lower Low Water Spring
MLW	Mean Low Water
MLWI	Mean Low Water lunitidal Interval
MLWN	Mean Low Water Neaps
MLWS	Mean Low Water Springs
MID	Maritime Identification Digits
MMSS	Maritime Mobile Satellite Service
MOB	Man Over Board
MODU	Mobile Offshore Drilling Unit
MOL	More Or Less
MOLCO	More Or Less Charterer`s Option
MOLOO	More Or Less Owner`s Option
MOT	Ministry Of Transport
M/R	Mate`s Receipt
MS	Motor Ship
MSA	Marine Safety Agency
	Merchant Shipping Act
MSB	Main Switch Board
MSC	Maritime Safety Committee
MSG	Message
MSI	Maritime Safety Information
MSL	Mean Sea Level
M/T	Motor Tanker
MT	Motor Tanker
	Metric Ton
	Empty
MTBE	Metyl Tertiary Butyl Ether
MTC	Moment to change Trim per Centimetre
MTD	Multimodal Transport Document
MTL	Mean Tide Level
MTO	Multimodal Transport Operator
M/V	Motor Vessel
MV	Motor Vessel

N

NAABSA	Not Always Afloat But Safely Aground
NCAD	Notice of Cancellation at Anniversary Date
NCSA	North Coast South America
NCV	No Commercial Value
NDT	Non-Destructive Testing
NEOBIG	Not East Of But Including Greece
NEP/S	Not Elsewhere Provided/Stated
NIMA	National Imagery and Mapping Agency
NKK	Nippon Kaiji Kyokai (Japanese Classification Society)
NLS	Noxious Liquid Substances
NMEA	National Marine Electronics Association
NOAA	The United States National Oceanic and Atmospheric Administration
NOE	Notice of Exception
	Not Otherwise Enumerated
NOP	Not Otherwise Provided
NOR	Notice Of Readiness
NORA	Notice Of Readiness Accepted
NORT	Notice Of Readiness Tendered
NOS	Not Otherwise Specified
NPA	National Petroleum Association
NR	No Risk
NRAD	No Risk After Discharge
NRT	Net Registered Tonnage
NS	Nuclear Ship
NSA	Non-Separation Agreement
NSPF	Not Specially Provided For
N/T	New Terms
NT	Net Tonnage
NTM	Notice to Mariners
NUC	Not Under Command
NVO	Non-Vessel Operating
NVOC	Non-Vessel Owning Carrier
NVOCC	Non-Vessel Owning Common Carrier
NWE	North West Europe
NYPE	New York Produce Exchange form

O

OBO	Oil/Bulk/Ore
O/C	Open Charter
	Ore Carrier
OCIMF	Oil Companies International Marine Forum
OCP	Over Common Point
OD	Outside Diameter
ODME	Oil Discharge Monitoring Equipment
ODP	Offshore Drilling Platform
OH	Off Hire
OHBC	Open Hatch Bulk Carrier
OO	Oil/Ore
	Owner`s Option
OOG	Out Of Gauge
OOW	Officer On Watch
OPA	Oil Pollution Act
OPEC	Organisation of Petroleum Exporting Countries
OPL	Off Port Limits
OPRHNS	Protocol on Preparedness, Response and Co-operation to Pollution incidents by Hazardous and Noxious Substances
OR	Owner`s Risk
ORB	Owner`s Risk of Breakage
ORC	Owner`s Risk of Chafing
ORD	Owner`s Risk of Damage
OS	Ordinary Seaman
OSB	One Safe Berth
OS&D	Over, Short and Damage (report)
OSD	Open Shelter Decker
	Oil Spill Dispersant
OSP	One Safe Port
OSRA	Ocean Shipping Reform Act
OSV	Offshore Supply Vessel
OT	On Truck
	Overtime
	Oil Tight
OWS	Oily Water Separator

P

P&I	Protection And Indemnity
PANDI	Protection And Indemnity
P/CGO	Part Cargo
PCC	Pure Car Carrier
PCNT	Panama Canal Nett Tonnage
PCT	Percent
PDM	Physical Distribution Management
PDPR	Per Day Pro Rata
PEL	Permissible Exposure Limit
PER/DRF	Permissible Draught
PF	Power Factor
PFSO	Port Facility Security Officer
PG	Persian Gulf
PGF	Poincar? Gold Franc
PHPD	Per Hatch Per Day
PIC	Person In Charge
PL	Protective Location
PLTC`S	Port Liner Term Charges
PMQS	Provided Minimum Quantity Supplied
PMS	Plan Maintenance System
POB	Pilot On Board
POR	Pacific Ocean Region
PP	Picked Port(s)
	Posted Price
	Pre-Paid
PPE	Personal Protection Equipment
PPM	Parts Per Million
PPS	Precise Positioning System
PPT	Prompt Ship
PRS	Polski Rejestr Statkow (Polish Register of Shipping)
PSC	Port State Control
PSF	Pounds per Square Foot
PSI	Pounds per Square Inch
PSR	Panama Shipping Register
PT	Private Terms
PV	Pressure Vacuum (valve)
PWWD	Per Weather Working Day

Q

QM	Quarter Master
QS	Quarantine Station

R

RCC	Rescue Coordination Centre
RCDS	Raster Chart Display System
RDC	Run Down Clause
RDF	Radio Direction Finder
REC	Spain`s Special Register of Vessels of the Canary Islands
RECD	Received
RED	Rate, Extras, Demurrage
REDELY	Redelivery
RF	Range Finder
	Radio Frequency
RH	Relative Humidity
	Right Hand
RINA	Registro Italiano Navale (Italian Classification Society)
	Royal Institute of Naval Architects
RINAV	Registro Internacional Naval SARL (Portuguese)
RLS	Royal Lifeboat Society
RMS	Root Mean Square
	Royal Mail Service
RNR	Registrul Naval Roman (Romanian Register of Shipping)
	Rate Not Reported
ROB	Remaining On Board
ROC	Restricted Operator Certificate
	Reference Our Cable
RORO	Roll On/Roll Off
ROT	Reference Our Telex
ROV	Remotely Operated Vehicle
RPC	Remote Position Control
RPF	Radio Position Finding
RPM	Revolution Per Minute
RPS	Revolution Per Second
RPT	Repeat
RS	Russian Maritime Register of Shipping
	Radio Station
R/T	Revenue Ton
RT	Radio Telephone
RTN	Return
RTW	Round The World
R/V	Round Voyage
RVP	Reid Vapour Pressure
RVT	Revert
RVTG	Reverting
RX	Receiver
RYC	Reference Your Cable
RYT	Reference Your Telex

S

S&P	Sale & Purchase
SAFCON	Cargo Ship Safety Construction Certificate
SANR	Subject to Approval, No Risk
SAR	Search And Rescue
SARSAT	Search And Rescue Satellite System
SART	Search And Rescue Radar Transponder
SATCOM	Satellite Communications
SB	Safe Berth
SBM	Single Buoy Mooring
SBS	Surveyed Before Shipment
SBT	Segregated Ballast Tank
SC	Salvage Charges
	Short Circuit
SCNT	Suez Canal Nett Tonnage
SD	Sailing Date
	Short Delivery
	Standard Design
	Single Decker
SDR	Special Drawing Rights
SF	Safety Factor
	Stowage Factor
	Shear Force
SG	Specific Gravity
SHEX	Sundays, Holidays Excluded
SHINC	Sundays, Holidays Included
SHP	Shaft Horse Power
SIGTTO	Society of International Gas Tanker and Terminal Operators
SLA	Single Line Approach
SMC	Safety Management Certificate
SMS	Safety Management System
S/N	Shipping Note
SNST	Soonest
S/O	Shipping Order
SOC	Shipper Owned Carrier
SOF	Statement Of Facts
SOFAR	Sound Fixing And Ranging
SOL	Shipowner`s Liability
SOLAS	The International Convention for the Safety Of Life At Sea
SONAR	Sound Operation Navigation And Range
SOPEP	Ship and Shore Oil Pollution Emergency Plan
SP	Safe Port
SPC	Self-Polishing Copolymers
SPD	Steamer Pays Dues
SPM	Single Point Mooring
SRL	Ship Repairer`s Liability
SS	Special Survey
	Steam Ship
SSB	Single Side Band
SSHEX	Saturdays, Sundays, Holidays Excluded
SSHINC	Saturdays, Sundays, Holidays Included
SSN	Standard Shipping Note
SSO	Ship Security Officer
SSW	Summer Salt Water
ST	Short Ton
	Standard Time
STBY	Standby
STC	Said To Contain
STCW	Standards of Training, Certification and Watchkeeping (convention)
STD	Standard
STEL	Short Term Exposure Limit
STL	Submerged Turret Loading
SWAD	Salt Water Arrival Draught
SWASH	Small Waterplane Area Single Hull
SWATH	Small Waterplane Area Twin Hull
SWBM	Still Water Bending Moment
SWDD	Salt Water Departure Draught
SWL	Safe Working Load

T

T&P	Theft & Pilferage
T&S	Touch & Stay
TBA	To Be Advised
	To Be Agreed
	To Be Announced
	Tertiary Butyl Alcohol
TBN	To Be Named
	To Be Nominated
	Total Base Number
TBO	Time Between Overhauls
TBS	Talk Between Ships
T/C	Time Charter
TC	Time Charter
	Till Countermanded
	Time Closing
	Temperature Coefficient
TCE	Time Charter Equivalent
TCP	Time Charter Party
TCT	Time Charter Trip
TD	Tween Deck
	Temporarily Discontinued
TDC	Top Dead Centre
TDW	Total Deadweight
	Tonnes Deadweight
TDWAT	Total Deadweight All Told
	Tonnage Deadweight All Told
TE	Temporarily Extinguished
TEU	Twenty-foot Equivalent Unit
TF	Tropical Freshwater (loadline)
T&G	Tongued & Grooved (timber)
THC	Terminal Handling Charges
TIP	Taking Inward Pilot
TL	Total Load
	Total Loss
TLO	Total Loss Only
TLX	Telex
TM	Technical Manual
T/O	Transfer Order
TOFC	Trailer on Flat Car
TOP	Taking Outbound Pilot
TOTOCOM	Total Commission
TOVALOP	Tanker Owners` Voluntary Agreement Concerning Liability for Oil Pollution
TPC	Tons Per Centimetre (immersion)
TPD	Tons Per Day
TPI	Tons Per Inch
TPT	Transport
TR	Ton Registered
TRND	To Be Renamed
TS	Thunderstorm
	Tropical Storm
TSA	Transpacific Stabilisation Agreement
TSCF	Tanker Structure Co-operative Forum
TST	Topside Tank
TT	Turbine Tanker
	Transit Time
T/T	Telegraphic Transfer
TVP	True Vapour Pressure
TW	Typhoon Warning
TWA	Time Weighted Average
TWRA	Transpacific West-bound Rate Agreement

U

UBC	Universal Bulk Carrier
UCAE	Unforeseen Circumstances Always Expected
UCT	Universal Co-ordinated Time
UFL	Upper Flammable Limit
UHF	Ultra High Frequency
UKC	UK - Continent
	Under Keel Clearance
ULCC	Ultra Large Crude Carrier
ULCS	Ultra Large Containership
UMS	Unmanned Machinery Space
UNCTAD	United Nation`s Conference On Trade And Development
USAC	United States Atlantic Coast
USC	Unless Sooner Commenced
USCG	United States Coast Guard
USEC	United States East Coast
USG	United States Gulf
USNH	United States North of Cape Hatteras
USSH	United States South of Cape Hatteras
USWC	United States West Coast
UT	Universal Time
UU	Unless Used
UUIWCTAUTC	Unless Used In Which Case Time Actually Used To Count

V

VA	Volt-Ampere
VATOS	Valid At Time Of Sale
V/C	Voyage Charter
	Vehicle Container
VDR	Voyage Data Recorder
VEC	Vapour Emission Control
VHF	Very High Frequency
VIOS	Vessel Insurance and Operations Surcharge
VLCC	Very Large Crude Carrier
VLF	Very Low Frequency
VOCC	Vessel Operating Common Carrier
VOP	Value as in Original Policy
VOY	Voyage
VPD	Vessel Pays Dues
VSL	Vessel

W

W	Winter (loadline)
	West
WA	With Average
W/B	Waybill
WBA	When Berth Available
WBT	Water Ballast Tank
WCCON	Whether Cleared Customs Or Not
WCSA	West Coast South America
WD	Wind Direction
WECM	Warranted Existing Class Maintained
WEF	With Effect From
WFA	With Following Alterations
WI	West Indies
WIBON	Whether In Berth Or Not
WICCON	Whether In Customs Clearance Or Not
WIFPON	Whether In Free Pratique Or Not
WIG	Wing-In-Ground (effect craft)
WIPON	Whether In Port Or Not
WL	Water Line
WLOH	Within Local Office Hours
WLTOHC	Waterline To Hatch Coaming
W/M	Weight or Measurement
W&M	War & Marine
WMO	World Meteorological Organisation
WNA	Winter North Atlantic (loadline)
WOG	Without Guidance
	Without Guarantee
WP	Weather Permitting
W/P	Without Prejudice
WPA	With Particular Average
WRIC	Wire Rods In Coils
WRO	War Risk Only
WS	World Scale
WT	Wing Tank
	Watertight
	War Time
WTS	Working Time Saved
WTSBE	Working Time Saved Both Ends
WVNS	Within Vessel`s Natural Segregation
WWD	Weather Working Days
WWDSHEX	Weather Working Days, Sundays and Holidays Excepted
WWR	When Where Ready
WWRCD	When Where Ready on Completion of Discharge
WWW	World Weather Watch
WWWW	WIBON, WCCON, WIFPON, WIPON
WX	Weather Message

Y

YAR	York Antwarp Rules

Z

ZST	Zone Standard Time
ZT	Zone Time