Advancing digital book and claim solutions for SAF with RSB

As the aviation industry accelerates its path toward decarbonization, it is increasingly clear that the rapid scale-up of Sustainable Aviation Fuel (SAF) relies on digital systems. Because physical SAF is not delivered to every airport today, book and claim solutions offer a practical way to expand adoption — decoupling physical fuel delivery from its environmental attributes so that suppliers, airlines, intermediaries, registries, and scope 3 buyers (in the context of both corporate travel and cargo), can support SAF today.

For SAF book and claim to work at scale, the market needs infrastructure to enable digital connectivity across a complex network of fuel management systems and market participants. This relies on neutral digital solutions that connect diverse stakeholders while allowing them to work with their preferred providers and registries.

Today, at the RSB Annual Conference 2025, Roundtable on Sustainable Biomaterials (RSB) announced a strategic collaboration to integrate RSB Book & Claim Registry with the Chooose platform. This integration strengthens the digital foundation needed for a credible, scalable SAF ecosystem. Acting as the technical and operational layer, Chooose enhances the RSB Book & Claim Registry by streamlining the issuance, transfer, and retirement of SAF attributes and making transactions more automated, traceable, and auditable. This collaboration reflects Chooose’s commitment to supporting the industry’s registry needs as the market continues to evolve and enables participants, such as airlines, to centrally manage their SAF programs while ensuring that all registry actions are automatically synchronized in the background.

Connecting the RSB Book & Claim Registry

Integrating the RSB Book & Claim Registry with the Chooose platform delivers three key improvements for SAF value chain operations:

• Enhanced transparency: Automated data synchronization and streamlined access to RSB-issued retirement statements support the development of digital book and claim solutions.
• Improved reliability: Automated workflows reduce manual, error-prone processes and strengthen traceability and reporting.
• Scalable transactions: SAF attributes can be transferred, retired, and claimed more efficiently, supporting consistent, accessible SAF program growth.

Chooose as the technical layer

A robust SAF market depends on digital solutions that connect suppliers, intermediaries, buyers, and independent oversight bodies. Chooose is designed for this role: a technical layer that centralizes SAF program management — from offtake to retirement — and streamlines workflows across the ecosystem.

By integrating with registries such as the RSB Book & Claim Registry, Chooose ensures airlines can scale and manage their environmental attribute inventory centrally and efficiently, distribute attributes to scope 3 buyers, and maintain flexibility to work with their registry of choice. These connections ensure attributes are issued, transferred, and retired with integrity.

“We are proud to serve as a technical layer further connecting the RSB Book & Claim Registry with the global SAF market. The integration automates the transfer of book and claim units while ensuring the environmental attributes are tracked, verified, and retired with integrity and efficiency across the value chain,” said Linda Kristoffersen, VP of SAF Solutions at Chooose.

Benefits across the SAF value chain

For airlines and intermediaries

• Reduced administrative burden
• More efficient SAF program operations
• Increased customer confidence through verifiable SAF claims

For scope 3 attribute buyers (i.e., corporates and cargo companies)

• Easier access to SAF environmental attributes
• More reliable SAF claims
• Better audit-readiness and reporting

For the SAF market

• Progress towards a standardized, scalable digital ecosystem
• Less complexity and fewer manual processes
• A stronger foundation for market growth

Commitment to decarbonization and next steps

The pilot is underway with select participants, and RSB and Chooose will continue refining the integration ahead of its 2026 launch.

Together, we are building the foundation for scalable, user-friendly, and audit-ready digital book and claim solutions — minimizing double counting, improving system connectivity, and strengthening trust across the global SAF value chain.