Maritime Glossary

Maritime Terms and Acronyms

Below is a glossary of maritime terms and acronyms commonly used throughout the website

TermDefinition
 ABS American Bureau of Shipping
 AHTS Anchor Handling Tug Supply vessel
 Aframax Medium-sized oil tankers with a dead weight tonnage between 80,000 and 119,999
 ATCT Air Traffic Control Tower
 BMEA British Marine Equipment Association
 BNEA British Naval Equipment Association
 CapemaxVery large and ultra large cargo vessels with a capacity over 150,000 DWT. Includes VLCC and ULCC
 CRM Customer Relationship Management
 DIT Department for International Trade (UK Government)
 DWTDead Weight Tonnage: expresses the number of tons of  2,240 pounds that a vessel can transport of cargo
 DNV-GL Det Norske Veritas – Germanischer Lloyd
 Fastcat High-speed catamaran
 Floatel Offshore accommodation vessel
 FPSO Floating Production Storage and Offloading vessel
 FR Flame Retardant
 Handymax Small-sized cargo ships with a size less than 60,000 DWT
 Grt Gross Tonnage: applies to vessels, not to cargo. A vessel ton is 100 cubic feet
 ICS International Chamber of Shipping
 ICT Information and Communication Technology
 IMO International Maritime Organisation
 ISO The International Organization for Standardization
 IMPA The International Marine Purchasing Association
 LNG Liquefied Natural Gas
 LPG Liquefied Petroleum Gas
 LT Long Ton, also called gross ton or imperial ton; weighs 2,240 pounds
 MSC Marine Safety Committee
 MV Motor Vessel
 Mwh Megawatt hour
 OSV Offshore Service Vessel / Offshore Support Vessel
 Panamax Mid-sized cargo ships capable of passing through the Panama Canal
 PSV Platform Supply Vessel
 Q-Max Largest LNG carriers that can dock at the LNG terminals in Qatar
 RNLI Royal National Lifeboat Institution
 Ro-Ro Roll-on/roll-off vessel
 Ro-Pax Roll-On-Roll-Off-Passenger-ship/ferry
 SMI Society of Maritime Industries
 SMM Shipbuilding, Machinery, Marine technology exhibition, Hamburg
 SOLAS Safety Of Life At Sea
 SS Steam Ship
 SSA Shipbuilders & Shiprepairers Association
 Suezmax The largest type of ship that can pass through the Suez Canal
 TA Type Approved
 Tonne Metric tonne of 1,000 kilograms (2,204.68 pounds)
 ULCC Ultra Large Crude Carrier
 UV Ultra Violet
 VLCC Very Large Crude Carrier
 VTS Vessel Traffic Services