SABA Announces Start of Work on SAFc Registry

Digital SAFc Registry
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RMI Partners with Energy Web Foundation to Build Sustainable Aviation Fuel Certificate Registry, as Part of Ongoing Decarbonization Work with the Sustainable Aviation Buyers Alliance

A digital registry for sustainable aviation fuel certificates (SAFc) can give corporate fliers, fuel suppliers, the aviation sector, and its investors confidence to aim higher and scale faster.


RMI and Energy Web Foundation announced that they will build a digital registry for sustainable aviation fuel (SAF) certificates that will bring more transparency to emissions reduction claims about air travel. The registry will also support and accelerate the deployment of sustainable aviation fuels that drastically reduce lifecycle emissions from air transport.

The registry will support ongoing work with the Sustainable Aviation Buyers Alliance (SABA), a coalition of corporate buyers and aviators committed to decarbonizing aviation, co-founded by RMI and the Environmental Defense Fund

“RMI is very excited to see this crucial tool to fruition,” said Bryan Fisher, Managing Director of RMI’s Climate-Aligned Industries Program. “A transparent, easy-to-use registry built on a rigorous accounting approach will lift public confidence in SAF emissions reduction claims, propel investment in SAF production, and accelerate decarbonization of the aviation sector.”

SAF is a drop-in fuel made with renewable or waste feedstocks that can decrease the lifecycle emissions of flight by up to 99 percent. Currently, SAF production is insufficient to meet demand from corporate flyers that aim to decarbonize flights taken by their employees and goods.

“The SAF certificate registry will help drive the market toward high quality fuel by providing detailed data on the environmental quality and associated certifications of each gallon of SAF. As a result, aviation customers will be able to choose a truly sustainable solution,” said Angela Churie Kallhauge, Executive Vice President for Impact at Environmental Defense Fund.

SAF certificates enable companies and other aviation customers to pay for the environmental benefits (such as emissions reductions) of SAF, even if the physical fuel is not yet available for their flights. Decoupling the environmental attributes of SAF from the physical fuel will democratize access to SAF’s benefits and catalyze SAF supply at scale. A digital registry in which SAFc can be securely and consistently issued, transferred, and retired is critical to ensure that these certificates represent unique and verified emissions reduction claims.

“This registry is a wonderful opportunity to showcase how technology can bring transparency and trust to complex supply chains like SAF,” said Jesse Morris, CEO at Energy Web. “And by building the registry open source, the SAF industry can help other hard-to-decarbonize sectors understand what’s possible with digital technology.”

The registry will enable SAF suppliers, airlines, corporate flyers, freight carriers, logistics service providers, and freight shippers to demonstrate and verify that the SAF and SAFc they invest in meets specific sustainability criteria linked to certifications of each fuel’s supply chain. It will support companies’ ability to make auditable claims about their investments in climate disclosures.

“The development of the SAFc registry represents the first major milestone for the Sustainable Aviation Buyers Alliance, making good on our promise to break down roadblocks and create the tools necessary to decarbonize the aviation sector,” said Kim Carnahan, Head of SABA’s Secretariat and Senior Director for Net Zero Fuels at Engie Impact.

The SAFc registry is expected to go live in mid-2023.


About SABA 

The Sustainable Aviation Buyers Alliance (SABA) is an alliance of aviation customers, airlines, and environmental organizations dedicated to accelerating the path to net-zero aviation, driving investment in and adoption of high-integrity sustainable aviation fuel (SAF), and supporting companies in achieving their climate goals. SABA’s founding companies include Bank of America, Boeing, Boston Consulting Group, Deloitte, JPMorgan Chase, McKinsey & Company, Meta, Microsoft, Netflix and Salesforce. SABA’s Founding Aviators group includes Alaska Airlines, Amazon Air, JetBlue and United Airlines. SABA is managed by Environmental Defense Fund (EDF) and RMI, with expert support from ENGIE Impact serving as SABA’s Secretariat. 



About RMI 

RMI is an independent nonprofit founded in 1982 that transforms global energy systems through market-driven solutions to align with a 1.5°C future and secure a clean, prosperous, zero-carbon future for all. We work in the world’s most critical geographies and engage businesses, policymakers, communities, and NGOs to identify and scale energy system interventions that will cut greenhouse gas emissions at least 50 percent by 2030. RMI has offices in Basalt and Boulder, Colorado; New York City; Oakland, California; Washington, D.C.; and Beijing.  

More information on RMI can be found at or follow us on Twitter @RockyMtnInst. 

About EDF 

One of the world’s leading international nonprofit organizations, Environmental Defense Fund ( creates transformational solutions to the most serious environmental problems. To do so, EDF links science, economics, law, and innovative private-sector partnerships. With more than 2.5 million members and offices in the United States, China, Mexico, Indonesia and the European Union, EDF’s scientists, economists, attorneys and policy experts are working in 28 countries to turn our solutions into action. Connect with us on Twitter @EnvDefenseFund. 

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