Guidance

RTFO and SAF Mandate technical information

Technical information to enable compliance with the Renewable Transport Fuel Obligation (RTFO) and Sustainable Aviation Fuel (SAF) Mandate.

• From: Department for Transport
• Published: 19 December 2024
• Last updated: 15 December 2025 — See all updates

Documents

RTFO and SAF Mandate technical guidance 2026

PDF, 2.2 MB, 175 pages

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RTFO and SAF Mandate technical guidance 2025

PDF, 1.86 MB, 172 pages

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Details

This guidance provides technical information to enable compliance with the Renewable Transport Fuel Obligation (RTFO) and Sustainable Aviation Fuel (SAF) Mandate, including:

• classifying eligible fuels
• demonstrating compliance with the carbon and sustainability requirements
• mass balance rules

The 2025 RTFO and SAF Mandate technical guidance has been kept online for historical record.

Contact us

Send queries or comments about the guide 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 19 December 2024

Last updated 15 December 2025 + show all updates

1. 15 December 2025

   RTFO and SAF Mandate technical guidance 2026 added.

2. 19 December 2024

   First published.