The latest UK Department for Transport update marks an important shift in the conversation around Sustainable Aviation Fuel. Instead of introducing new compliance requirements, the government has launched a Call for Evidence to better understand how the SAF market is evolving and whether future policy adjustments may be needed. The overall SAF Mandate targets remain unchanged, reinforcing the governments long term commitment to aviation decarbonisation.

What Has Changed

Focus Moves From Targets To Market Readiness

The previous framework established SAF blending targets, technology pathways, and compliance obligations. The latest update shifts attention towards whether the market can realistically deliver enough advanced SAF to meet those existing targets.

Greater Attention On Advanced SAF

A key area of focus is the future availability of advanced non HEFA fuels and Power to Liquid fuels. The government wants evidence on whether supply can keep pace with increasing demand while supporting innovation and long term emissions reductions.

Industry Consultation Takes Centre Stage

Unlike earlier regulatory updates, this document actively invites feedback from fuel producers, airlines, airports, investors, feedstock suppliers, and other stakeholders. The objective is to gather evidence before considering any future policy adjustments.

Policy Stability Remains A Priority

Perhaps the most significant message is that the government is not proposing changes to the overall SAF Mandate targets. Any future amendments will only be considered if supported by strong evidence and after formal consultation. This provides greater confidence for investors and businesses planning long term SAF projects.

Why This Matters

The update recognises that successful aviation decarbonisation depends not only on ambitious targets but also on reliable fuel supply and sustained investment. By seeking evidence before making policy changes, the government is aiming to strengthen market confidence while ensuring the SAF transition remains practical and achievable.

Conclusion

This latest update represents an evolution rather than a revision of the SAF Mandate. The emphasis has shifted from setting new rules to ensuring existing ambitions can be delivered through stronger industry collaboration, improved supply certainty, and continued investment in advanced sustainable aviation fuels.

Download Document File Here: SAF Mandate: SAF supply and industry certainty in an evolving market