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CORSIA Aviation Consulting

In 2016, the UN’s International Civil Aviation Organisation (ICAO) through its 193 member states agreed to start curbing emissions from international flights via a market-based mechanism named CORSIA or Carbon Offsetting and Reduction Scheme for International Aviation.

CORSIA aims to address the growth of emissions from international aviation from 2020 onwards meaning that all emissions above the 2019-2020 baseline emissions from the flight routes included in the system will be required to be offset by the aircraft operator. CORSIA is comprised of three phases as follows:

  • Pilot Phase (from 2021 to 2023) voluntary (see the list of participants here)

  • First Phase (from 2024 to 2026) voluntary

  • Second Phase (from 2027 to 2035) mandatory for states that have an individual share of activity in Revenue Tonne-Kilometres (RTKs) above 0.5 per cent of the total in 2018. Except Least Developed Countries (LDCs), Small Island Developing States (SIDS) and Landlocked Developing Countries (LLDCs) unless they volunteer to participate in this phase.

Compliance period and offsetting requirements

Aircraft operators meet their offsetting requirements on a 3-year compliance period basis and must submit an Emissions Monitoring Plan to the state where they are based. Offsetting requirements are calculated according to a dynamic approach that gives more weight to the growth of sectoral international aviation in the pilot and first phase of the scheme to shift towards a more individualistic emissions weighting in the second phase of the scheme. The offsetting requirements are fulfilled by purchasing and cancelling CORSIA eligible units from any of the displayed emissions reductions schemes.               

Image by Daniel Olah
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  1. American Carbon Registry (ACR)

  2. Climate Action Reserve (CAR)

  3. Architecture for REDD+ Transactions

  4. Verified Carbon Standard (VCS)

  5. The Gold Standard (GS)

  6. Clean Development Mechanism (CDM)

  7. Global Carbon Council (GCC)

  8. China GHG Voluntary Emission Reduction Program

Plane on Runway

Contact us today and reach new heights

At Ecompensate we are experienced in helping the aviation sector navigate their way through the carbon markets either for compliance or voluntary purposes so they can concentrate in doing what they know best – Flying. Get in touch with one of our aviation experts to find out more about how to get on top of your CORSIA requirements.