A notification by the Government of India on April 17 allowed the use of ethanol to make Sustainable Aviation Fuel (SAF). Decarbonizing aviation is difficult because aircraft cannot yet use batteries or hydrogen on a commercial scale, making SAF the primary way to comply with international emissions frameworks.

However, to be usable in jet engines, ethanol is subjected to a process called alcohol-to-jet (ATJ). It is dehydrated, has longer hydrocarbon chains, and is hydrogenated.