Audited, counted once.
Certified, audited, counted once. One claim, one owner, on a registry an auditor can follow.
Solutions · Marine
The same accountability, now for shipping.
The Book and Claim model that works in aviation applies wherever a lower-emissions fuel enters a shared supply. We're extending it to marine, to give shipping buyers a route to act without waiting for local fuel availability.
One partner across modes
Address emissions on water with the same accountable operator that stands behind your aviation claim.
Provenance that travels
Follow the fuel from the feedstock it came from to the vessel it powers, not just a line on a certificate.
The settlement layer that works in the air, now also on the water.
Shipping faces the same problem aviation does: lower-emissions fuel is scarce, expensive, and rarely available exactly where a vessel loads. Book and Claim separates the environmental attribute from the physical fuel. A lower-emissions fuel enters the supply where it makes sense, and the verified reduction is retired to the party that funded it. The attribute is certified, tracked separately, and counted once, with a registry statement your due diligence can follow.
As with aviation, the discipline is what matters. An audited chain of custody, a registry an auditor can follow, and one claim held by one owner. That's what turns intent into a reduction a buyer can defend.
Talk to us about marine →