Guidance

RTFO and SAF Mandate recycled carbon fuels

Information for suppliers of recycled carbon fuels under the Renewable Transport Fuel Obligation (RTFO) and Sustainable Aviation Fuel (SAF) Mandate.

• From: Department for Transport
• Published: 1 July 2024
• Last updated: 15 December 2025 — See all updates

Documents

RTFO and SAF Mandate guidance for recycled carbon fuels: 2026

PDF, 457 KB, 26 pages

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RTFO guidance for recycled carbon fuels: 2024

PDF, 368 KB, 22 pages

Details

This guidance provides specific information for suppliers of recycled carbon fuels (RCFs) on the: 

• definition of RCFs and eligibility under the Renewable Transport Fuel Obligation (RTFO) and Sustainable Aviation Fuel (SAF) Mandate
• process for determining RCF feedstock eligibility
• carbon and sustainability requirements for RCFs

The previous version of the guidance has been kept for historical record. Readers should refer to the current version for the latest guidance.

Contact us 

Send queries to the Department for Transport’s Low Carbon Fuels Delivery Unit at:

• rtfo-compliance@dft.gov.uk for RTFO
• saf-compliance@dft.gov.uk for SAF Mandate

Published 1 July 2024

Last updated 15 December 2025 + show all updates

1. 15 December 2025

   RTFO and SAF Mandate guidance for recycled carbon fuels 2026 added.

2. 1 July 2024

   First published.