Ship Types Guide

Shore PowerDecarbonization

Apr 22

Written By Vincent Doedee

The Ship Types Guide provides a structured reference for navigating ship classification across the frameworks that drive maritime compliance costs. Drawing on IMO MARPOL Annex VI, EU MRV and FuelEU Maritime, IHS StatCode5, DNV, World Ships, and Ship Knowledge, the guide documents the Sustainable Ships classification — 20 categories, 72 types, and 52 sizes — and sets it side-by-side with each source framework, showing where they agree, where they diverge, and what the differences mean for regulatory scope.
Rather than treating ship type as an administrative label, the guide anchors classification in its commercial consequence: the wrong ship type assumption can mean the wrong regulatory framework, the wrong compliance cost, and the wrong business case.
Regulatory scoping – Determine which frameworks apply to your vessel: IMO CII/EEXI, EU ETS, FuelEU Maritime, or none.
Framework translation – Map vessel classifications across IMO, EU MRV, IHS StatCode5, DNV, and Clarkson's in a single reference table.
Example ship database – Browse 130+ real-world reference vessels, one per Category × Type × Size combination, drawn from a database of 31,000+ ships.
FAQ and definitions – Resolve classification ambiguities with authoritative source citations, including where to find the official IMO ship type definitions.

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The Ship Types Guide provides a structured reference for navigating ship classification across regulatory and commercial frameworks. Drawing on IMO MARPOL Annex VI, EU MRV, IHS StatCode5, DNV, World Ships, and Ship Knowledge, the guide maps the Sustainable Ships classification: 20 categories, 72 types, and 52 sizes, against each source framework and documents where they agree, where they diverge, and why.

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