> For the complete documentation index, see [llms.txt](https://docs-launchpad.energyweb.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-launchpad.energyweb.org/ewx-ecosystem/worker-nodes/worker-node-use-cases/sample-enterprise-use-cases/green-proofs/safc.md).

# SAFc

SAFc is an innovative system designed to promote the adoption of Sustainable Aviation Fuel (SAF) by issuing and managing SAF certificates. These certificates serve as verifiable proof that a specific volume of SAF has been produced or utilized, ensuring transparency and accountability in the aviation industry's transition to greener fuels.

<figure><img src="/files/UGRkb41fm0e8HpysVkGs" alt=""><figcaption><p>SAFc Diagram overview</p></figcaption></figure>

[Learn more](/energy-solutions/green-proofs-by-energy-web/use-cases-and-reference-implementations/sustainable-aviation-fuel.md)