ClassNK Launches Pilot Testing of 3D Model-Based Approval System with Ten Japanese Companies
On 16th February 2026, in Tokyo, ClassNK announced the initiation of a joint pilot test involving ten Japanese companies for its drawing approval system, NK-PASS, and the ClassNK 3DViewer. These systems are compatible with 3DMBA (3D Model-Based Approval) and are set for an official release in the spring of 2026.
Transition to Next-Generation Approval Processes
3DMBA represents a shift towards approval processes centered on 3D models instead of traditional 2D drawings. This approach is gaining global traction as it promises improved visualization, accuracy, and faster detection of design changes and errors. The new systems aim to facilitate the industry’s transition from 2D drawing-based approvals to a 3D model-centric workflow, with a focus on accommodating the internationally standardized OCX format.
Pilot Test and Guidelines Publication
The pilot test, involving companies like Oshima Shipbuilding, Kawasaki Heavy Industries, and Mitsubishi Shipbuilding, will verify the functionalities of 3DMBA, data interoperability using the OCX format, and practical operations combining 3D and 2D drawings. Through this collaborative effort, ClassNK intends to identify operational challenges and refine the system for its official launch.
SDARI, BV and NAPA joint project validates benefits of 3D model-based classification approvals
In addition to the system release, ClassNK plans to publish the “Guidelines on 3D Model-Based Approval (3DMBA)” to outline requirements for submitting 3D models, standard operational procedures, and handling of OCX-based 3D models. Feedback from the pilot test will inform these guidelines to promote the effective adoption of 3DMBA.
With the development of the ClassNK 3DViewer and enhancements to the NK-PASS system, ClassNK is poised to usher in a new era of approval processes in the maritime industry. Stay tuned for further updates as this innovative technology prepares to revolutionize the shipbuilding landscape.
