International shipping faces tightening decarbonisation expectations while alternative fuels scale slowly and unevenly. In this context, onboard carbon capture and storage (OCCS) is one of the few near‑term options able to deliver material tank‑to‑wake reductions on vessels that will continue operating on conventional or transition fuels through the 2030s.

This report from Lloyd’s Register Advisory, commissioned by the International Chamber of shipping, concludes that OCCS is technically feasible and already demonstrated at sea across multiple ship types and technologies, but commercial diffusion depends on solving three interlocking gaps: ship integration, carbon disposal infrastructure, and regulatory/accounting certainty.

The report follows a recent webinar, where the author’s of this study spoke about OCCS and answered questions sent in about the alternative technology. You can read more about the webinar here, and can watch the full recording of the webinar here.