Question to the Department for Transport:

To ask the Secretary of State for Transport, what estimate has been made of the level of buy-out under the sustainable aviation fuel Mandate that would prompt a review of the trajectory of the advanced fuel and power-to-liquid sub-mandates.

There is not a specified level of buyout that would prompt a review of the Sustainable Aviation Fuel (SAF) Mandate. We consistently monitor the performance of the SAF Mandate and it has a built-in review process so the government can take action if necessary. On 16 June the government published a call for evidence titled “SAF Mandate: SAF supply and industry certainty in an evolving market”. The call for evidence explicitly asks respondents whether they believe any changes to the HEFA cap or PtL obligation are required. We look forward to industry’s engagement in this exercise.