ICAO joins alliance to boost CORSIA eligible emissions unit supply

The International Civil Aviation Organization has become a member of the Supporting Alliance for CORSIA EEU Supply, a group of more than 80 stakeholders that aims to address bottlenecks limiting the availability of eligible emissions units and to facilitate processes for authorising units while avoiding double counting.

The alliance also assists countries in aligning their Paris Agreement nationally determined contributions with CORSIA requirements and provides technical expertise for participation in carbon markets, with 42 Letters of Authorization covering 72 million EEUs reported in August 2026, up from 40 million EEUs at the start of the year, while an estimated 200‑250 million EEUs are needed for the initial compliance cycle.