ICAO, a specialized agency of the United Nations, was created in 1944 to promote the safe and orderly development of international civil aviation throughout the world. It sets standards and regulations necessary for aviation safety, security, efficiency, capacity and environmental protection, amongst many other priorities. The Organization serves as the forum for cooperation in all fields of civil aviation among its 193 Member States.
CORSIA is the first global market-based measure for any sector. It contributes to the achievement of ICAO’s aspirational goal of carbon neutral growth from 2020 onwards complementing other measures such as technological innovations, operational improvements and sustainable aviation fuels. Following CORSIA’s adoption at the 39th ICAO Assembly in 2016, ICAO developed Standards and Recommended Practices (SARPs) and guidance for the implementation of the CORSIA Monitoring, Reporting and Verification (MRV) system. As of 1 January 2019, all aircraft operating on international routes are being monitored for their CO2 emissions on an annual basis. These emissions will be verified and reported to ICAO starting in 2020 through the CORSIA Central Registry.