This report is a CE Delft publication. Authors: Jasper Faber, Julius Király (CE Delft); David Lee; Bethan Owen (Manchester Metropolitan University); Aoife O’Leary (Opportunity Green).

Aviation has significant non-CO2 climate impacts. This report explores three ways in which the non-CO2 impact of aviation could be reduced through the control and monitoring of the aromatics concentration of jet fuels:

• Amendment to the European Commission’s so-called ReFuelEU Aviation proposal.

• The creation of an EU-wide aviation fuel standard.

• Develop a global standard for aviation fuel or amend an existing standard, set by ASTM and DEF.