Question to the Department for Transport:

To ask the Secretary of State for Transport, what steps she is taking to support the innovation and development of second and third generation sustainable aviation fuel.

We are encouraging the innovation and development of sustainable aviation fuels through a number of policy measures: The SAF Mandate, introduced in January 2025, generates a demand for advanced fuels by capping HEFA SAF and having targets for second and third generation SAFs.

We also encourage the development of such fuels through the Advanced Fuels Fund which is providing £63m to support 17 projects this year across a range of advanced SAF development including power-to-liquid. Support for the development of second and third generation SAFs will continue through the upcoming spending review period.

We also fund the UK SAF Clearing House, which coordinates the testing and qualification of SAF. Over £223k of grant funding for fuel testing has been awarded since 2024.