In autumn 2016 ICAO agreed on a global market-based measure (GMBM) to control CO2 emissions from international aviation. This measure, called CORSIA, consists of a global offsetting scheme, in which aircraft operators would be required, from 2021, to purchase emissions units, generated by projects in other sectors, to cover any growth in CO2 emissions above 2020 levels. 

CORSIA will be implemented in phases, starting with participation of States on a voluntary basis (2021-2026), followed by participation of all other States (2027-2035) except those exempted due to very low level of economic development or those with a very small share of international aviation activity. Coverage of the system is established on the basis of routes between states and providing equal treatment to all aircraft operators flying on a given route. Thus, only routes between States that are participating in the Scheme will be covered for offsetting requirements.

71 States have already volunteered to participate in the first phase, meaning a positive step forward to contribute to keep the global temperature rise well-below 2 degrees Celsius as agreed in Paris. However, many important elements need to be developed to enable the full implementation of CORSIA such as the monitoring, reporting and verification (MRV) system, the establishment of Registries, and the definition of the criteria for emissions units to be purchased by aircraft operators. It is expected that clear implementation rules are to be public by June 2018.

Vertis has special expertise on CORSIA and is closely following the ICAO process. Contact our Head of Aviation Services, Africa Abajas,  if you have any doubt about this incoming global scheme. 

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