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The supply of SAF is measured annually as required under the聽SAF Mandate.

Figures for each reporting year are updated and revised in provisional publications, before the final publication. The final publication, with a complete dataset for the year, will typically be published in the subsequent winter of the reporting year.

Data on the supply of SAF under the SAF Mandate.

All the statistics published in this series are official statistics. The department鈥檚 view is that all statistics which are not designated as accredited official statistics are robust and have been produced to a suitable standard.

The SAF Mandate is the UK鈥檚 key policy to decarbonise jet fuel and is the UK鈥檚 key policy mechanism to secure demand for SAF. It delivers greenhouse gas (GHG) emission savings by encouraging the supply of SAF within the aviation industry. It does this by setting a legal obligation on fossil jet fuel suppliers in the UK to supply an increasing proportion of SAF over time. Suppliers will receive certificates for the SAF they supply. The number of certificates they receive will be issued in proportion to the level of GHG emission reductions that fuel delivered.

The SAF Mandate obligation starts at 2% of total UK jet fuel demand in 2025, increasing linearly to 10% in 2030 and then to 22% in 2040. Suppliers are required to submit reports on the carbon and sustainability standards of the low carbon fuels.

All provisional tables contain fuel volumes which are cross-verified with HMRC data. However, as suppliers can provide their data up to 7 months after the obligation period ends, all data published prior to the final report for each obligation period subject to change.

The final figures for each obligation period are usually published in the subsequent winter of the reporting year. There can be some discrepancy between the provisional and final figures so provisional reports should be viewed as indicative rather than definitive. Further information on provisional data is contained within the data tables themselves.