PURPOSE

This manual, developed by the ICAO Committee on Aviation Environmental Protection (CAEP), identifies and reviews various operational opportunities and techniques for reducing fuel consumption, and therefore emissions, in civil aviation operations. It is based on the premise that the most effective way to minimize aircraft emissions is to minimize the amount of fuel used in operating each flight. The manual updates and replaces ICAO Circular 303, Operational Opportunities to Minimize Fuel Use and Reduce Emissions, published in 2004.

This manual identifies specific actions that might be taken by the major stakeholders in civil air transport in order to reduce fuel consumption, together with practical examples. It also describes the conditions and limitations associated with these actions. It is not intended as a basis for regulatory action, and the choice of many of the operational procedures presented depends upon many factors other than environmental benefits. Safety must always be the overriding consideration in all civil aviation operations.