Question to the Department for Transport:

To ask His Majesty's Government what plans they have, if any, to encourage targeted technology investment in renewable fuels such as the use of waste cooking oils in aviation fuel.

The Renewable Transport Fuel Obligation is currently our main support mechanism to encourage the supply of renewable fuels, including aviation fuels and those produced from waste feedstocks like used cooking oil (UCO).

The Government plans to introduce the sustainable aviation fuel (SAF) mandate in 2025, which will aim to drive demand for SAF in the UK and deliver at least 10% SAF in the jet fuel mix by 2030. The mandate will include a cap on hydroprocessed esters and fatty acids (HEFA) SAF, which includes UCO. The Department is currently consulting on what level the cap should be set at.