What is CORSIA?

The Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) is a global scheme to address emissions from international air travel. 
The scheme aims to stabilize international civil aviation net CO2 emissions at 2019 levels, from 2021, using offsetting programs.

History of CORSIA

In October 2016, member states of the International Civil Aviation Organization adopt a global market-based measure for aviation emissions.
The scheme has been adopted as complementary to the broader package of measures to help ICAO achieve its aspirational goal of carbon neutral growth from 2020 onwards.
CORSIA relies on the use of emissions units from the carbon market to offset the amount of CO2 emissions that cannot be reduced through the use of technological and operational improvements and sustainable aviation fuels.
Operational Measures icon  Operational Measures             Aircraft_Technology_icon.png  Aircraft Technology            SAF_icon.png  Sustainable Aviation Fuel

Did you know?

CORSIA has three implementation phases:
  • Pilot Phase (2021 - 2023);
  • First Phase (2024 - 2026); and
  • Second Phase (2027 - 2035)

The difference between the phases is how States participate in the CORSIA offsetting. Specifically, for the pilot phase and first phase, participation is voluntary, whereas for the second phase, participation is based on the 2018 RTK data and voluntary participation.
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