FAA CLEEN program

FAA's principal environmental effort to accelerate the development of new aircraft and engine technologies and advance sustainable alternative jet fuels

ICAO’s Sustainable Aviation Fuels Guide

Prepared to inform ICAO Member States on how sustainable aviation fuels can be deployed to reduce CO2 emissions from international aviation activities.

ICAO Fuels Task Group

The ICAO Fuels Task Group will have the obligation of developing a methodology to assess the life cycle emissions of biofuels.

ICAO voluntary efficiency goal

ICAO member states adopted a goal of global annual average fuel efficiency improvements of 2% annually until 2020 and an aspirational global fuel efficiency improvement rate of 2% annually from 2021 to 2050.

IATA voluntary efficiency goal

The International Air Transport Association set a voluntary goal in 2007 of improving efficiency by at least 25% by 2020 compared to 2005 levels, amounting to a 1.5% efficiency gain per year.

CORSIA

Under the Carbon Offsetting and Reduction Scheme for International Aviation, ICAO aims to ensure any rise in international aviation emissions above 2020 levels are accounted for by the purchase of offsets elsewhere.

ICAO carbon standard

In March 2017, ICAO adopted a carbon standard for aircraft.