Allowing SAF suppliers, aircraft operators, logistics providers, and end customers to confidently track, transfer, and report their emissions reductions for credible climate disclosures.
Sustainable Aviation Fuel (SAF) is a key lever for cutting down on emissions in air travel, and our certification schemes already cover robust sustainability, greenhouse gas emissions reductions, and full traceability of SAF from feedstock production through to airport delivery.
The ISCC Credit Transfer System (CTS) takes this one step further. It enables verified sustainability claims to be reliably tracked and transferred after SAF uptake – addressing a long-standing challenge in the aviation value chain. Integrated with the ISCC Registry, our secure online database, the CTS allows claims to move transparently through the downstream chain. As a result, SAF suppliers, aircraft operators, logistics providers, and end customers can confidently track, transfer, and report their emissions reductions for credible climate disclosures.
1
SAF delivery
The SAF supplier delivers sustainably certified SAF to the airport.
2
Register credits in the ISCC Registry
The SAF supplier registers SAF credits in the ISCC Registry, corresponding to the quantity of SAF delivered. Each metric tonne of SAF creates both a Scope 1 and Scope 3 credit, in line with GHG accounting principles defined by the GHG Protocol.
3
Transfer credits in the ISCC Registry
The SAF supplier transfers SAF credits in the ISCC Registry to organisations in the downstream value chain, including aircraft operators, logistics service providers, and aviation end customers.
4
Retire credits in the ISCC Registry
Organisations retire credits available in their account. The ISCC Registry automatically issues a retirement declaration.
5
Claim SAF credits
The retirement declaration includes information for the organisation to claim the sustainability characteristics associated with the retired credits towards their voluntary climate disclosures.
Review the System Document ISCC Credit Transfer System to dive deep into the principles, requirements, and capabilities of the system. You can find the document under further information below.
Designate a primary contact person from your company or organisation who will be responsible for all transactions and communications. Once you sign up for the ISCC Registry, your request will be reviewed. Please note: SAF suppliers are required to complete an additional ISCC trader certification.
Before your registration is approved, an ISCC expert will schedule a mandatory 30-minute onboarding call with you. In this session, you will learn about the different user roles, the actions each can perform (e.g., transferring or claiming credits), and discuss applicable audit procedures. This onboarding ensures you are fully prepared to use the system effectively and provides an opportunity to ask any final questions.
Explore our library to find all relevant system documents, guidance, templates and supporting materials in one place.