CORSIA Phase 1 remains supply-constrained, with only one project issuing credits that meet ICAO’s requirements against double claiming. “Proving” that host countries are not counting projects’ emission reduction toward their Paris targets may be the trickiest hurdle to CORSIA eligibility, as Letters of Authorisation (LoAs) are not enough when it comes to international aviation offsets.
So far, the supply of carbon credits eligible for airlines to offset emissions from international flights under the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA)is tiny: the International Civil Aviation Organization (ICAO)has set strict criteria for what constitutes an Eligible Emission Unit (EEU). Policy and regulation – CORSIA
For a credit to be considered “CORSIA-eligible,” many conditions must be met:
The activity must be registered under one of the ICAO-approved programmes. As of now there are only six of those – American Carbon Registry (ACR), Architecture for REDD+ Transactions (ART), Climate Action Reserve (CAR), Global Carbon Council, Gold Standard, Verified Carbon Standard (Verra).
The activities the credits are issued to must have started their first crediting period after 1 January 2016, and the emission reductions those credits represent must have occurred from 1 January 2021 through 31 December 2026.
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