Short, build-your-intuition lessons with instant checks, spaced-repetition flashcards, and a tutor on tap. Every figure here matches the platform's own tools — so what you learn is what you'll use.
Seven topics, ~8–10 minutes each. Work through them in any order.
Why international aviation has a carbon bill — and how SAF pays it down.
HEFA, FT, ATJ, PtL and the rest — what they are and why maturity differs.
Where the carbon starts — and why residues beat crops on the climate ledger.
How a green ton in Rotterdam can clear an obligation in Lagos.
Measurement, mass balance and the books that stop double counting.
Carbon intensity, the 89 baseline, and the maths that decides eligibility.
Feedstock to flight in five stages — and where the chain usually breaks.
Lessons are built around quick checks — you answer as you read and get an instant explanation, right or wrong.
Key terms become flashcards. A Leitner + SM-2 scheduler resurfaces each one exactly when you're about to forget it.
A short quiz per track scores you and points to the exact topics to review — no guessing what you missed.
“I'm new to Sustainable Aviation Fuel — where should I start, and what are the key concepts?”
Ask the SAF tutor →Educational content, grounded in the platform's own data. Regulatory figures shown here also appear in Biojet Node's tools, where each carries its canonical source.