CORSIA-eligible fuel starts with a verified carbon intensity.
CORSIA eligibility turns on a lifecycle carbon intensity in gCO₂e/MJ — computed to the LCAF methodology and third-party verified. A self-declared number doesn’t qualify. Model the fuel pathway in CarbonSig and get it verified in the platform.
What makes a fuel CORSIA-eligible?
A fuel is CORSIA-eligible when its lifecycle carbon intensity — measured in gCO₂e/MJ to the LCAF methodology — achieves about a 10% reduction, and that intensity is third-party verified. A self-declared number does not qualify. In CarbonSig you model the fuel pathway once, produce the LCAF carbon intensity, and an independent, accredited verifier reviews it in the Verifier Hub. CarbonSig builds and hosts the verification; it does not determine eligibility or certify.
A CORSIA claim needs a verified number — per pathway, per batch.
A self-declared carbon intensity
Recalculated for each batch
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A self-declared CI doesn’t qualify a fuel as CORSIA-eligible.
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Every feedstock and pathway is re-evidenced from scratch.
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Multi-jurisdiction reporting (EU / US) pulls the numbers apart.
One verified model in CarbonSig
Built once, verified in-platform
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A third-party-verified lifecycle CI, in gCO₂e/MJ.
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Model the pathway once; swap feedstock or batch data and re-run.
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One consistent lifecycle model behind every jurisdiction’s claim.
Model the fuel pathway, get the LCAF carbon intensity.
Map the pathway node by node — feedstock, conversion and fuel — and Analyze computes the lifecycle carbon intensity CORSIA reads, in gCO₂e/MJ.
- The whole pathway, one model — feedstock, conversion and distribution as connected nodes, each tagged to a scope.
- A lifecycle CI in gCO₂e/MJ — Net Emission = Sources − Sinks − Credits, expressed per megajoule of fuel energy.
- Reusable per batch — swap feedstock or plant data and re-run, instead of rebuilding for each pathway.
A $60B energy company’s LCAF package
- 5 weeksto a documentation package
- 0critical gaps
- EU / USmulti-jurisdiction resolved
Built for real LCAF documentation.
A $60 billion energy company used CarbonSig to assemble a CORSIA LCAF documentation package in five weeks — with zero critical gaps and its EU/US multi-jurisdiction reporting reconciled against one lifecycle model.
A third party verifies the number — in the same platform.
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Step 1
Register the pathway model
Register your finished fuel model to a locked, read-only copy — the immutable snapshot a verifier reviews.
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Step 2
A verifier reviews it, round by round
An independent, accredited verifier raises findings pinned to the exact node and works through revision rounds in the Verifier Hub.
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Step 3
Verified carbon intensity
Once the verifier issues an opinion, you have a third-party-verified lifecycle CI to carry into your CORSIA claim.
CORSIA-eligible — and the same model gives you 45V.
You end with a third-party-verified lifecycle carbon intensity your CORSIA claim can rely on. And because it is one connected model, the same pathway produces your 45V carbon intensity — no rebuild.
CORSIA, answered.
What makes a fuel CORSIA-eligible?
A fuel is CORSIA-eligible when its lifecycle carbon intensity — measured in gCO₂e/MJ to the LCAF methodology — achieves about a 10% reduction, and that intensity is third-party verified. A self-declared number does not qualify. In CarbonSig you model the fuel pathway once, produce the LCAF carbon intensity, and an independent, accredited verifier reviews it in the Verifier Hub. CarbonSig builds and hosts the verification; it does not determine eligibility or certify.
Does CarbonSig certify CORSIA eligibility?
No. CarbonSig models the fuel’s lifecycle carbon intensity and hosts the third-party review; an independent, accredited verifier verifies the value. Eligibility is determined under the CORSIA framework — CarbonSig is neither the verifier nor a certification body, and it does not certify.
Can one model produce both a CORSIA and a 45V figure?
Yes. A fuel or hydrogen pathway modelled once produces the lifecycle carbon intensity CORSIA needs (gCO₂e/MJ) and the 45V carbon intensity — from the same data, without rebuilding the model.
What is LCAF?
LCAF stands for Lower Carbon Aviation Fuel — a CORSIA-eligible fuel category. Eligibility turns on a lifecycle carbon intensity in gCO₂e/MJ that achieves about a 10% reduction to qualify.
Do CORSIA claims have to be verified?
Yes. A self-declared carbon intensity does not qualify — the lifecycle value has to be third-party verified for the fuel to count as CORSIA-eligible.
Turn your fuel pathway into a verified CORSIA carbon intensity.
Model it once, get it third-party verified in the platform, and carry a number your CORSIA claim can stand on.