Department for Transport written question – answered at on 21 August 2026.
Siân Berry
Green Spokesperson (Justice), Green Spokesperson (Transport), Green Spokesperson (Work and Pensions), Green Spokesperson (Democratic Standards), Green Spokesperson (Home), Green Party Chief Whip
To ask the Secretary of State for Transport, what recent assessment she has made of the potential impact of making crop-based biofuels eligible under the Sustainable Aviation Fuel Mandate on UK (a) food security and (b) agricultural land use.
Siân Berry
Green Spokesperson (Justice), Green Spokesperson (Transport), Green Spokesperson (Work and Pensions), Green Spokesperson (Democratic Standards), Green Spokesperson (Home), Green Party Chief Whip
To ask the Secretary of State for Transport, what discussions she has had with advanced e-SAF producers on the call for evidence on the Sustainable Aviation Fuel Mandate.
Keir Mather
Parliamentary Under-Secretary (Department for Transport)
The Secretary of State for Transport has not had discussions with advanced e-SAF producers on the Sustainable Aviation Fuel (SAF) Mandate call for evidence titled “SAF Mandate: SAF supply and industry certainty in an evolving market”, launched on 16 June. Officials hosted an open webinar on 18 June which was attended by a broad range of stakeholders from across the SAF industry. In addition to this, Officials have held three workshops on the contents of the call for evidence. Stakeholders from across the industry were invited, including e-SAF producers.
Government published a call for evidence on crop-derived SAF in December 2025. We requested feedback on the benefits and risks of using crops, including the impact on food security and land use change. Officials are currently reviewing the evidence and we will provide a government response in due course.
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Secretary of State was originally the title given to the two officials who conducted the Royal Correspondence under Elizabeth I. Now it is the title held by some of the more important Government Ministers, for example the Secretary of State for Foreign Affairs.