CBAM Embedded Carbon Emissions Verification

CBAM entered its definitive phase in 2026 — importers of steel, aluminium, cement, fertilizers, and hydrogen now need authorization and must surrender certificates for embedded emissions — a customs and carbon-pricing regime that gets conflated with a Digital Product Passport but checks a different thing.

Why AuthiChain

• CBAM is enforced through an importer’s declaration and EU ETS-linked certificate prices; a DPP is a product record anyone can resolve — passing one does not satisfy the other, and a customs authority checks CBAM compliance independently of whether a passport exists
• A steel or aluminium passport issued through this protocol can carry the batch-level embodied-carbon figure a CBAM declaration needs, but the signed record is supporting evidence, not the declaration itself
• From 2027, declarants must hold certificates covering at least 50% of quarterly embedded emissions — reduced from an earlier 80% proposal — a certificate-surrender mechanic that has nothing to do with whether the underlying batch record is signed or anchored

How it works

Issue a unique identifier per unit, anchor its record on-chain for tamper-evidence, and let anyone verify it with a single scan. Plans start at $49/mo.

FAQ

Does a signed AuthiChain record satisfy CBAM reporting on its own?

No — CBAM requires the importer to file a customs declaration and surrender certificates. A signed batch record can support the embedded-carbon figure in that declaration; it does not replace filing it.

Which products does CBAM currently cover?

Cement, iron and steel, aluminium, fertilizers, electricity, and hydrogen, with a combined 50-tonne annual exemption for smaller importers.