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About ICAO
  • Overview
  • Strategic Plan 2026-2050
  • Latest News and Highlights
  • FAQs
  • List - ICAO Member States
  • ICAO Museum
  • ICAO Carbon Calculator
  • Report Misconduct
  • Contact ICAO
Diplomatic Bodies
  • ICAO Assembly (193 States)
  • Sessions of the Assembly
  • Resolutions in Force
  • ICAO Council (36 States)
  • President of the Council
  • Sessions of the Council
  • Council State Representatives
  • Air Navigation Commission
ICAO Secretariat
  • Secretary General
  • Air Navigation Bureau
  • Air Transport Bureau
  • Capacity Development and Implementation Bureau
  • Legal Affairs and External Relations Bureau
  • Administration Bureau
  • Regional Offices
Global Priorities
Strategic Goals
  • Every Flight is Safe and Secure
  • Aviation is Environmentally Sustainable
  • • CORSIA
  • • State Action Plans for Aviation CO2 Reduction
  • • Finvest Hub
  • Aviation Delivers Seamless, Accessible, and Reliable Mobility for All
  • No Country Left Behind
  • • Capacity Development and Implementation Support
  • The International Civil Aviation Convention and Other Treaties, Laws and Regulations Address All Challenges
  • The Economic Development of Air Transport Assures the Delivery of Economic Prosperity and Societal Well-Being for All
Enablers
  • ICAO Continuous Improvement
  • Innovation in Aviation
  • Next Generation Aviation Professionals
  • Gender Equality
  • ICAO Global Ambassadors Programme
  • ICAO Training
  • Partnerships and Resource Mobilization
Events
Featured Events
  • ICAO Global Implementation Support Symposium 2026
  • Fourteenth Meeting of the Facilitation Panel (FALP/14)
  • ICAO PKD Workshop Americas
  • 4th Civil Aviation Legal Advisers Forum (CALAF/4)
Event Information
  • Host your Event at ICAO
  • View the full list of Coming and Past Meetings & Events
Resources
Resources
  • ICAO E-Library
  • Publications
  • Annual Reports of the Council
  • Safety Audit Results - Interactive
  • Aviation Benefits Report
  • Economic Facts and Figures
  • Global Aviation Safety Plan
  • Safety Reports
  • Global Air Navigation Plan
  • Air Navigation Reports
  • ICAO Partnership Programme
  • ICAO API Data Service
  • ICAO Data+
  • ICAO iSTARS
  • Air Transport Monthly Monitor
  • Compendium: Competition Policies/Practices
  • Economic Analyses and Forecasting
  • Databases and Studies
  • Environment Reports
  • Environment Publications
  • ICAO TRIP Strategy Compendium
  • Unmanned Aviation
  • ICAO GIS Aviation Data
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CORSIA IMPLEMENTATION
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Technical Advisory Body (TAB)

2026 Assessment Cycle

From 9 February to 9 March 2026, 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 2027 – 2029 compliance period.

TAB will assess applications submitted by interested organizations over the course of 2026. All applications - except for information designated as business confidential - are included below.

  1. BCarbon 
  2. Biocarbon Fund Initiative for Sustainable Forest Landscapes
  3. Biocarbon Standard
  4. Building Emissions Reduction Standard
  5. C-Capsule & Absolute Climate
  6. Cercarbono
  7. Climate Action Reserve
  8. Coalition for Rainforest Nations
  9. COLCX
  10. Equitable Earth
  11. Forest Carbon Partnership Facility
  12. Global Carbon Council
  13. Global C-Sink Standards
  14. International Carbon Registry
  15. Isometric
  16. KCS Program
  17. Open Carbon Protocol
  18. ORMEX
  19. Paris Agreement Crediting Mechanism
  20. Planet First Registry
  21. Premium T-VER
  22. Puro Program
  23. PV Climate
  24. Rainbow
  25. Voluntary GHG Reduction System of the Russian Federation
  26. Zimbabwe Carbon Markets Authority

Public Comments 2026

ICAO invites the public to submit comments on the applications submitted by programmes in 2026 regarding their alignment with the CORSIA EUC.

The period for public comments is open from 27 March to 26 April 2026. Comments may be submitted using the Public Comments Form to TAB [at] icao.int (TAB[at]icao[dot]int) by 26 April 2026 (23:00 EDT).

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. 

Material Change Form

Programmes which are approved to supply CORSIA Eligible Emissions Units should 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.

The programme(s) are invited to complete and submit the Material Change notification form, including accompanying evidence, no later than 25 April 2026 via TAB [at] icao.int.

2026 Webinar for Emissions Unit Programmes
Understanding CORSIA Eligible Emissions Units

On 18 February 2026, ICAO organized a webinar to inform stakeholders about the 2026 assessment process, key documents for understanding the CORSIA Eligible Emissions Units, recent developments and next steps in the work of the Technical Advisory Body. The presentation, recording, and FAQs are available below:

Webinar Presentation
Recording
FAQs


2026 application documents
  • 2026 application form
  • 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 

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), First Phase (2024-2026 compliance period), and 2027-2029 compliance period. The table is for information purposes only and is available here.

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, 2023, 2024, and 2025. Detailed information about those assessments can be accessed below:

2019 TAB Assessment
2020 TAB Assessment
2021 TAB Assessment
2022 TAB Assessment
2023 TAB Assessment
2024 TAB Assessment
2025 TAB Assessment
 

Technical Advisory Body (TAB)

TAB Terms of Reference 
TAB Procedures
List of TAB M​embers
TAB 2026 Work Programme
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