Sustainability and Environment
Standard for 100 percent Drop-in SAF Likely Two Years Away
Approval of a drop-in fuel standard will predate by several years approval of a separate initiative to develop a non-drop-in standard for 100 percent SAF.
A United Airlines Boeing 737 Max 8 flew a demonstration flight in December using 100 percent drop-in SAF in one engine while carrying 100 passengers between Chicago and Washington, D.C.
A United Airlines Boeing 737 Max 8 flew a demonstration flight in December using 100 percent drop-in SAF in one engine while carrying 100 passengers between Chicago and Washington, D.C.

Approval by the aerospace industry for a standard for 100 percent drop-in sustainable aviation fuel (SAF) under development by an ASTM International task force likely won’t happen for another two years, according to the chairman of the standards organization's SAF panel and GE Aviation's aviation fuels and additives engineering leader, Gurhan Andac.