Eligibility of VCUs for Use in CORSIA


In March of 2019, the International Civil Aviation Organization (ICAO) published a set of emissions unit criteria by which emissions units would qualify for use in the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA). In March of 2020, the ICAO Council voted to accept Verified Carbon Units (VCUs) issued to certain project types under certain conditions for use in CORSIA. The purpose of this guidance is to clearly identify which VCUs are eligible for use in CORSIA and to highlight how such eligible VCUs will be identified on the Verra Registry.

Note that this document will be updated from time-to-time as ICAO makes further decisions in respect of CORSIA emissions unit eligibility.

VCU Eligibility Criteria

VCUs that meet each of the following conditions are eligible for use in CORSIA for the 2021-2023 pilot phase:


Where VCUs are demonstrated to have met each of the eligibility criteria set out above, a “CORSIA label” will be applied to such VCUs and displayed on the Verra Registry to indicate eligibility for use in CORSIA. Verra believes taking this labelling approach is more sensible than creating an entirely new unit type, since VCUs eligible for CORSIA may also be used for other purposes besides CORSIA.

The CORSIA label will appear in the Verra Registry, and will be searchable,[1] in a similar fashion to other credit-level (as opposed to project-level) additional certifications, such as VCU labels for CCB Program certification. Verra is currently in the process of developing this CORSIA VCU label within the Verra Registry platform.


[1] Verra envisions that there will be a need to further designate CORSIA-eligible VCUs based on differing eligibility criteria across future compliance cycles. Accordingly the label may appear as “CORSIA1” (as in, CORSIA compliance cycle 1), “CORSIA2”, and so on.

Other Programs

Photo: Darren Centofanti

Climate, Community & Biodiversity Standards

Supporting land use projects in addressing climate change, supporting local communities and smallholders and conserving biodiversity

Learn More >
Photo: Paul Vincent

Verified Carbon Standard

The VCS Program is the world’s leading voluntary program for the certification of GHG emission reduction projects

Learn More >

California Offset Project Registry

The Offset Project Registry (OPR) facilitates the participation of offset projects within the California cap-and-trade program

Learn More >