ClassNK has published a new handbook titled Onboard Carbon Capture Systems Implementation Framework, a guidance document intended to assist maritime stakeholders exploring the adoption of onboard carbon capture systems. Sources indicated the release on 23 October 2026 and identified the handbook as part of ClassNK’s Handbook on Ship GHG Emissions Evaluation series.
The handbook is described as practical guidance aimed at shipowners, operators and other stakeholders who are considering the introduction of onboard carbon capture systems, commonly abbreviated as OCCS. According to the report, the material is intended to help those parties understand the considerations involved when evaluating such systems.
The title and the series placement indicate the handbook forms a component of ClassNK’s broader work on ship greenhouse-gas emissions evaluation, as set out in the Handbook on Ship GHG Emissions Evaluation series. reports’s summary positioned the new volume within that sequence and highlighted its practical orientation for decision-makers in the maritime sector.
Intended audience and purpose
Sources noted that the handbook is targeted at shipowners and operators, and at other stakeholders whose decisions affect the deployment of onboard carbon capture systems. The report emphasised the handbook’s role in clarifying the various considerations those parties should take into account when contemplating OCCS adoption.
Position within the emissions-evaluation series
The new handbook is explicitly incorporated into the Handbook on Ship GHG Emissions Evaluation series, signalling that it is part of a continuing programme of work addressing shipboard greenhouse-gas matters. The series attribution was a central point in the reports coverage of the release on 23 October 2026.
reports’s account confined its description to the handbook’s title, series membership and stated purpose of providing practical guidance; the report did not elaborate further on the handbook’s precise contents or on specific recommendations it may contain. The published summary therefore presents the release as an offering intended to support informed consideration of OCCS without detailing the internal structure of the document.
ClassNK’s release, as reported, offers a reference point for those beginning to assess onboard carbon capture systems and for organisations seeking an overview framed within a GHG-evaluation context. The reports item functions as a notification of the handbook’s availability and of the society’s continuing work under the Handbook on Ship GHG Emissions Evaluation banner.
The report was published on 23 October 2026 by reports and identified the handbook by its full title, Onboard Carbon Capture Systems Implementation Framework. Beyond the naming and the stated intent to aid understanding of considerations around OCCS, the summary confined itself to a brief characterisation of the handbook’s practical focus and its place in the series.
Readers interested in the handbook’s specific guidance, structure, or any technical or regulatory detail will need to consult the document itself or announcements from ClassNK for further information, since the summarised account in reports provides only the key descriptive facts of title, series association, target audience and stated purpose.
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