Technical
ICAO Updates CORSIA Eligible Emissions Units (CEEUs)
ICAO has published an updated overview of CORSIA Eligible Emissions Units (CEEUs), providing aircraft operators with the latest information on approved programme registries, host countries, and the quantity of emissions units available for the 2024–2026 CORSIA First Phase.
Update details
Full summary and practical implications
ICAO has updated the list of CORSIA Eligible Emissions Units (CEEUs) issued by approved programme registries.
The publication identifies the programme registry, host country, quantity of CEEUs issued and their geographical distribution.
The information is extracted directly from ICAO-approved programme registries and reflects the quantity of units labelled as CORSIA Eligible.
Only ICAO-approved emissions units may be used by aircraft operators to satisfy CORSIA offsetting obligations.
The reported quantities do not necessarily represent units currently available for purchase, as some units may already have been cancelled or reserved.
Operators should undertake appropriate due diligence before purchasing emissions units to confirm continued eligibility under ICAO requirements.
CORSIA Eligible Emissions Units (Issued by Programme Registries) – As of 30 June 2026
| Host Country | Programme Registry | CEEUs Issued (tonnes) |
|---|---|---|
| Cambodia | VCS | 1,275,362 |
| Gambia | VCS | 196,652 |
| Guyana | ART | 24,963,214 |
| Lao | VCS | 1,276,305 |
| Madagascar | VCS | 2,721,875 |
| Malawi | GS | 1,376,880 |
| Nigeria | VCS | 20,121 |
| Rwanda | GS | 51,199 |
| Rwanda | VCS | 4,869,464 |
| Sierra Leone | VCS | 2,078 |
| Tanzania | GS | 2,806 |
| Tanzania | VCS | 142,504 |
| Uzbekistan | VCS | 1,568,083 |
| Total | - | 38,466,543 |
Operator actions
What your team should do next
Review your projected CORSIA offsetting obligations before purchasing emissions units.
Verify that purchased emissions units originate from ICAO-approved programme registries.
Maintain registry records, Letters of Authorization (where applicable), retirement certificates and supporting documentation.
Develop an internal procurement and governance process for selecting CORSIA Eligible Emissions Units.
Coordinate with your verifier to ensure purchased emissions units satisfy CORSIA eligibility requirements before cancellation.
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