The 39th Session of the Assembly also welcomed the convening of this second ICAO Conference on Aviation and Alternative Fuels, with the aim of developing an ICAO Vision on Aviation Alternative Fuels. This Vision will encourage States to take action at national and international levels to further develop and deploy sustainable alternative fuels for aviation. 

The Conference will build upon the results of ​the ICAO Alternative Fue​ls Seminar, held in February 2017, ​and of the First ICAO Conference on Aviation and Alternative Fuels (CAAF), held in November 2009, which endorsed the use of sustainable alternative fuels for aviation as an important means of reducing aviation emissions and established the ICAO Global Framework for Aviation Alternative Fuels (GFAAF).​

This Conference will be conducted in conducted in Arabic, Chinese, English, French, Russian, and Spanish languages.​