Yes. The chemical and physical characteristics of SAF are almost identical to those of conventional jet fuel. This means they can be safely mixed with the latter to varying degrees, can use the same supply infrastructure and do not require any adaptation of either aircraft or engines. It means that SAF is often referred to as a “drop-in fuel” – that is, fuel that can be automatically incorporated into existing airport fuelling systems.All fuels (and SAF) must be certified to be used in commercial flights, and there are several bio-based aviation fuel production pathways that have been certified, with others in the approval process.