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Technical Advisory Body (TAB)

2024 Assessment cycle


From 5 February to 4 March 2024, ICAO invited emissions unit programmes to apply for assessment by the Technical Advisory Body (TAB) against the CORSIA Emissions Unit Criteria (EUC) to supply CORSIA Eligible Emissions Units for the 2024 – 2026 compliance period (first phase).


ICAO received eleven responses to the call for applications. The responses provided - except for the information labelled as business confidential - are included below.


1. Asia Carbon Institute

2. BioCarbon Standard

3. Carbon Asset Solutions Soil Carbon Methodology

4. C-Capsule

5. Ecosystem Restoration Standard

6. International Carbon Registry

7. Isometric

8. KCCI Carbon Standard (KCS) Program



11. Riverse


Material updates

In addition to the programme applications above, ICAO received eight material updates to previously-assessed programmes, submitted by April 30, 2024:

  1. BioCarbon Fund Initiative for Sustainable Forest Landscape
  2. Cercarbono
  3. Climate Action Reserve
  4. Forest Carbon Partnership Facility
  5. Global Carbon Council
  6. Gold Standard
  7. Premium Thailand Voluntary Emission Reduction Program
  8. Verified Carbon Standard

Assessment of 2024 applications and material updates will be conducted in line with TAB's annual work programme for 2024.

*New* Webinar on updated EUC Guidelines

TAB will hold a webinar on August 6th, 2024 to inform programmes about the recent updates to the Guidelines for Interpretation of the CORSIA Emissions Unit Eligibility Criteria. These updated Guidelines will be applied from 2025 in the re-assessment of emission unit programmes seeking eligibility beyond the first phase.

Participants should register using the registration form and sending it by email to no later than August 2nd, 2024


2024 Webinar for Emissions Unit Programmes

Understanding CORSIA Eligible Emissions Units

On February 9, 2024 ICAO organized a webinar to inform stakeholders about the application and assessment processes in 2024, key documents for understanding the CORSIA Eligible Emissions Units, recent developments and next steps in the work of the Technical Advisory Body.

Application and re-application forms

New applicants:

Application Form 2024

Application Form Appendix A – Supplementary Information

Application Form Appendix B – Programme Assessment Scope

Application Form Appendix C – Programme Exclusions Scope

Application Form Appendix D – Registry Attestation


Re-Applicants (any programme that submitted its application(s) in previous assessment cycles and would like to re-apply for TAB assessment) are requested to use the forms below:

Re-Application Form

Re-application Form Appendix A – Supplementary Information

Re-application Form Appendix B – Programme Assessment Scope

Re-application Form Appendix C – Programme Exclusions Scope

Re-application Form Appendix D – Registry Attestation

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.

Previous TAB Assessments

TAB completed assessments in 2019, 2020, 2021, 2022 and 2023. Detailed information about those assessments can be accessed below:

2019 TAB Assessment

2020 TAB Assessment

2021 TAB Assessment

2022 TAB Assessment

2023 TAB Assessment

Technical Advisory Body (TAB)

TAB Terms of Reference

TAB Procedures
List of TAB M​embers

TAB 2024 Work Programme

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