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Glossary term Description
IMO

International Maritime Organization, UN organisation dealing with maritime affairs, headquartered in London, UK

IMarEST

Institute of Marine Engineers, Science&Technology

IGC Code

International Code for the Construction & Equipment of Ships Carrying Liquefied Gases in Bulk

IFO

Intermediate fuel oil, a grade of bunkers

ICS International Chamber of Shipping
IBC

Intermediate bulk container: A special type of bulk container for hazardous materials

IAPH

International Association of Ports & Harbors

IACS

International Association of Classification Societies