Zemo Partnership has launched a voluntary assurance scheme providing independent verification of carbon accounting and traceability across UK sustainable aviation fuel supply chains, extending the organization’s established road transport verification model to aviation for the first time.
The timing is deliberate. With the UK SAF Mandate in force since 1 January 2025, airlines and fuel suppliers face legally binding blending obligations with real financial consequences. SAF supply chains are complex, multi-jurisdiction, and largely self-reported. Independent verification has been the missing link between mandate compliance on paper and genuine confidence in the carbon numbers underpinning it. As UK airlines reported more than $1.3 billion in excess charges during the mandate’s first year, the stakes for accurate supply chain accounting have rarely been higher.
SAF supply chains are complex, multi-jurisdiction, and largely self-reported. Independent verification has been the missing link between mandate compliance on paper and confidence in the numbers underpinning it.
Zemo Partnership is a UK public-private partnership, formerly known as the Low Carbon Vehicle Partnership (LowCVP), established in 2003. It counts nearly 200 member organizations across transport, energy, and government. The organization’s Renewable Fuels Assurance Scheme (RFAS) has been the established independent verification standard for renewable road transport fuels under the UK Renewable Transport Fuel Obligation (RTFO), covering lifecycle greenhouse gas emissions, feedstock sustainability, and supply chain traceability. The new aviation scheme applies that same framework to SAF.
The scheme is voluntary, positioning it as an industry-led standard ahead of any regulatory requirement for third-party verification. That distinction matters: participants that adopt it gain a credible, independently verified instrument for demonstrating the integrity of their SAF claims to regulators, offtake counterparties, and investors. The UK Emissions Trading Scheme is also actively consulting on how SAF emissions reductions should be accounted for within ETS compliance, adding a further dimension to why supply chain verification is now commercially critical rather than merely reputational.
As the UK SAF Mandate enters its second year, Zemo’s aviation assurance scheme arrives at a point where the industry urgently needs credible verification infrastructure. If uptake is strong among UK fuel suppliers and airlines, it could become a de facto standard for UK SAF supply chain claims — and a working template for similar frameworks as other jurisdictions develop their own mandatory blending regimes.
Source: BusinessGreen
