ClassNK Inspection, Survey & Testing
Ship Classification
Classification of ships: plan approval, surveys and registration of ships and installations, and approval of materials, equipment and outfitting gear.
Description
ClassNK's classification service covers every stage of ship classification, from approval of vessel and machinery plans to the survey and registration of ships and ship installations, and the approval of materials, equipment and outfitting gear. The Society's rules are applied to newbuildings and existing ships, and its surveyors work in shipbuilding and repair yards and at ports worldwide.
Key features
- Plan approval for vessels and machinery
- Survey and registration of ships and ship installations
- Approval of materials, equipment and outfitting gear
- Rules covering hull structures, propulsion systems, electrics, electronic systems, safety equipment and cargo handling gear
Scale
As of the end of September 2026, 9,844 ships totaling over 286 million g.t. were under ClassNK class, about 20 percent of the world merchant fleet under class.
Specifications
| Ships under class | 9,844 (end of September 2026) |
|---|---|
| Gross tonnage under class | over 286 million g.t. |
| Share of world merchant fleet under class | approx. 20% |
More from ClassNK
- ISM / ISPS / MLC Audits and Inspections
- ISO Management Systems Certification
- Ship Recycling Convention (IHM) Services
- ETAS (Emergency Technical Assistance Service)
- CAP (Condition Assessment Program)
- Technical Analysis Service
- Ship Related Technical and Industrial Inspection Services
- PrimeShip-HULL
- PrimeShip Machinery Analysis
- PrimeShip-GREEN
- ClassNK ZETA (Zero Emission Transition Accelerator)
- ClassNK Transition Support Services
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