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Written question asked by Joe Robertson (Conservative) on Monday, 13 July 2026, in the House of Commons. It was due for an answer on Thursday, 16 July 2026 (named day). A holding answer was provided on Thursday, 16 July 2026. A substantive answer was provided by Keir Mather (Labour) on Tuesday, 4 August 2026 on behalf of the Department for Transport.

Aviation: Biofuels

Question

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.

Answer

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.

Secondary information

Type
Written question
Reference
18374
Session
2026-27
Subjects
Aviation Biofuels
Link
View this Written question on www.parliament.uk