As of July 2025, the Low Carbon Fuel Standard now requires producers using specified source feedstocks to obtain Specific Source Feedstock attestation letters (SSFS) tracing back to the point of origin. This marks a major shift in compliance expectations—introducing new challenges in supply chain documentation and verification.
In this Biodiesel Magazine online exclusive by Christianson’s Senior Government Policy and Advocacy Manager Danielle Anderson, learn about the SSFS, what’s required and how the California Air Resources Board expects verifiers to handle nonconformance.
