Volume 1 / Beyond the Demonstration / Fuel & accountability
Stop Buying a Green Label. Buy Verifiable Fuel Outcomes.
A sustainable aviation fuel contract is also a contract about boundaries, evidence and who may make the claim.
Editorial analysis · AI-assisted · Source check: October 29, 2026 · No human peer review recorded
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Stop Buying a Green Label. Buy Verifiable Fuel Outcomes.
The Research University
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The next frontier in sustainable aviation fuel procurement is the quality of the evidence attached to each transaction. Volume matters, but a volume target alone cannot describe a climate result.
What the sources establish
ICAO’s CORSIA methodology evaluates fuel lifecycle emissions in grams of CO₂ equivalent per megajoule. Its framework includes core lifecycle emissions, induced land-use change and eligible credits. ICAO permits default values and supported actual values under the applicable methodology. These accounting provisions do not mean every fuel pathway delivers the same reduction. [1]
Original analysis & proposed framework
Procurement has two deliverables
The first deliverable is fuel meeting the agreed technical and commercial conditions. The second is a claim that an auditor can reconstruct. Our proposed contract annex records pathway, feedstock, production region, emissions methodology, allocation approach and the party entitled to use the environmental attribute. A missing annex is not a minor communications problem: it makes comparison across suppliers unreliable.
Compare like with like
A low quoted carbon intensity can be misleading when boundaries differ. Ask whether a comparison uses the same baseline, includes the same stages and treats credits consistently. Separate physical delivery from any contractual attribute transfer. Do not assume that a marketing certificate, a corporate inventory and a regulatory compliance submission have interchangeable requirements.
Design a claims failure scenario
Imagine that a supplier’s evidence becomes unavailable after delivery. Who must correct the buyer’s public statement? Who retains supporting records, and for how long? These questions belong in procurement review before a campaign is launched. A cautious buyer can still invest in emerging supply while making narrow claims tied to what is actually demonstrated.
From reading to inquiry
Put the argument to work.
Owner: fuel procurement lead with sustainability accounting and legal review. Maintain a transaction-level evidence register and reconciliation of claimed attributes. Measure documented lifecycle intensity, unresolved evidence exceptions and claims corrected after audit. Suspend a claim if supporting records conflict or ownership of the attribute cannot be established.
Sources & further reading
- ICAO — Life Cycle Emissions of Aviation Fuels ↗
- ICAO — CORSIA Eligible Fuels and governing documents ↗
Cite this article
The Research University (2026, October 29). Stop Buying a Green Label. Buy Verifiable Fuel Outcomes.. Aviation Futures: Journal of Flight, Technology & Society, 1. https://journal.research.university/journals/aviation-futures/articles/saf-proof-per-tonne
Editorial record
Evidence limits
This is a proposed governance approach, not legal or compliance advice. Eligibility must be checked against the rules applicable to the particular transaction and reporting period; no single percentage reduction is promised.
Preparation & publication
Prepared with AI assistance and published by The Research University under the editorial direction of Dr. Freedom Cheteni. No human peer review is recorded. No DOI or external endorsement is claimed. Source documents retain their original authorship and rights. Proposals and hypothetical examples are identified in the text; this is not an operational flight briefing.