Technical Advisory Body (TAB)

2025 Assessment cycle

Re-assessment process

From 3 February to 21 March 2025, ICAO invited emissions unit programmes already eligible for the first phase to apply to 2025 re-assessment by the Technical Advisory Body (TAB), which will make recommendations on their eligibility to supply CORSIA-Eligible Emissions Units for the 2027-2029 compliance period (part of the CORSIA 'second phase').

ICAO received submissions from four programmes. The submission are included below (except for the information labelled as business confidential):

1. American Carbon Registry

2. Architecture for REDD+ Transactions

3. Gold Standard

4. Verified Carbon Standard

The re-assessment will be conducted during TAB's 2025 assessment cycle, according to the TAB Terms of Reference, TAB Procedures and 2025 Work Programme.

Submission of Material Changes

TAB also received submissions as material changes from the following programmes:

1. American Carbon Registry

2. BioCarbon Fund Initiative for Sustainable Forest Landscapes (ISFL)

3. Cercarbono

4. Forest Carbon Partnership Facility (FCPF)

5. Isometric

6. Premium T-VER

7. Verified Carbon Standard

Call for Public Comments - 2025 assessment cycle

From 30 March to 18 April, ICAO invited the public to submit comments in relation to the 2025 submissions by programmes listed above regarding their alignment with the CORSIA EUC.

Public comments received during this assessment cycle, including commenter names and organizations, will be published on this website following the decision by the Council in respect of TAB's eligibility recommendations for this cycle.

ICAO reserves its rights to exclude from publication any submissions that are inconsistent with the guidelines, or which contain information that can be perceived as offensive, defamatory, and/or third-party advertising. ICAO will not consider any submission from the public that requests confidential treatment of all, or a substantial part, of the submission.

Summary Table

The summary table on CORSIA Eligible Emissions Units presents in a consolidated manner the list of programmes fully or conditionally approved by the ICAO Council to supply units to the Pilot Phase (2021-2023 compliance period) and First Phase (2024-206 compliance period). The table is for information purposes only and is available here.

2025 Webinar for Emissions Unit Programmes

Understanding CORSIA Eligible Emissions Units

On February 11, 2025, ICAO organized a webinar to inform stakeholders about the 2025 re-assessment process, key documents for understanding the CORSIA Eligible Emissions Units, recent developments and next steps in the work of the Technical Advisory Body.

2025 Re-application Form

In January 2025, TAB updated the forms listed below:

Material Change Form

Programmes which are approved to supply CORSIA Eligible Emissions Units are encouraged to use the Material Change Form to inform TAB of any material changes, the procedures for which are described in Section 8 of the TAB Procedures.

Clarification of TAB's criteria interpretation

The document "Clarification of TAB's criteria interpretation contained in TAB Reports" consolidates TAB’s further interpretations of the CORSIA Emissions Units Eligibility Criteria and associated Guidelines for Criteria Interpretation, including specific approaches taken to apply criteria and guidelines during the TAB’s assessments, which form the basis of TAB’s recommendations to the ICAO Council on eligible emissions units. The latest version of this document is available here.

Market Monitoring Form

The public is invited to submit comments pertaining to observations of any potential deviation from the Emissions Units Criteria (EUC), CORSIA Eligible Emissions Unit Programme's Scope of Eligibility (as specified in the ICAO document "CORSIA Eligible Emissions Units"), and/or Terms of Eligibility on an on-going basis using this Market monitoring form.