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About ICAO
  • Overview
  • Strategic Plan 2026-2050
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  • List - ICAO Member States
  • ICAO Museum
  • ICAO Carbon Calculator
  • Report Misconduct
  • Contact ICAO
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  • 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
  • Seamless, Accessible, and Reliable Mobility
  • No Country Left Behind
  • • Capacity Development and Implementation Support
  • Comprehensive Legal Framework
  • Economic Development
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/AWG Joint Regional Workshop on Cross-Border Transferability of Aircraft (XBT) and Compliance with the Cape Town Convention (CTC)
  • ICAO Global Implementation Support Symposium 2026
  • Fourteenth Meeting of the Facilitation Panel (FALP/14)
  • 4th Civil Aviation Legal Advisers Forum (CALAF/4)
  • View the Full List of Coming and Past meetings and Events
  • Host your event at ICAO
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  • Safety Audit Results - Interactive
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2021 TAB Assessment

Material Changes to Previously-Assessed Programmes (submitted by September 2021)

Three programmes submitted material changes for TAB's assessment to ICAO by September 2021.
 
1. American Carbon Registry 
2. Architecture for REDD+ Transactions 
3. Climate Action Reserve. 

 
Public Comments
In December 2021, ICAO invited the public to submit comments the material updates to previously- assessed programmes, in particular regarding the alignment of applicant organizations with the EUC. The deadline for submitting comments was Friday 31 December, 2021. No comments were received by the deadline.

 
TAB Recommendations
TAB submitted its fifth report to Council in January 2022. After consideration, Council accepted TAB's recommendations, and approved the associated ICAO document "CORSIA Eligible Emissions Units". TAB's recommendations in the TAB Report (January 2022) are available in English.
 

 

 

2021 Programme applications for assessment by TAB

 
From 11 January and 18 February 2021, ICAO invited emissions unit programmes to apply for assessment by TAB against the CORSIA Emissions Unit Criteria (EUC).
 
ICAO received three responses to the call for applications. The responses provided - except for the information labelled as business confidential - are included below.
 
  1. CERCARBONO
  2. ProClima
  3. REDD.Plus
 
In addition to the three new programme applications above, ICAO received the following two material updates to previously-assessed programmes submitted by 10 December 2020:
 
  1. American Carbon Registry
  2. Verified Carbon Standard
 
ICAO also received the following four material updates to previously-assessed programmes submitted by 15 April 2021:
 
  1. American Carbon Registry
  2. Architecture for REDD+ Transactions
  3. Clean Development Mechanism
  4. Verified Carbon Standard
 
Public Comments
In April 2021, ICAO invited the public to submit comments on responses to the call for applications and two material updates to previously-assessed programmes submitted by 10 December 2020, including regarding their alignment with the EUC. ICAO received 6 public comments, which are available in a consolidated form here.
 
In May 2021, ICAO invited the public to submit comments on four material updates to previously-assessed programmes submitted by 15 April 2021, including regarding their alignment with the EUC. ICAO received 3 public comments, which are available in a consolidated form here.
 
TAB Recommendations
TAB submitted its fourth report to Council in September 2021. After consideration, Council accepted TAB's recommendations, and approved the associated ICAO document "CORSIA Eligible Emissions Units". TAB's recommendations in the TAB Report (September 2021) are available in all six ICAO official languages.
 
 
 
​2021 Webinar for Emissions Unit Programmes
Understanding CORSIA Eligible Emissions Units
On Tuesday 2 February 2021, ICAO held a webinar to inform stakeholders about the TAB assessment process, key documents for understanding CORSIA eligibility, recent developments and next steps in the work of the Technical Advisory Body (TAB).
 
  • Webinar Recording
  • Webinar Presentation

 

Previous TAB Assessments

TAB completed assessments in 2019 and 2020. Detailed information about those assessments can be accessed below:
 
2019 TAB Assessment
2020 TAB Assessment
 
 

Technical Advisory Body (TAB)

TAB Terms of Reference
TAB Procedures
List of TAB M​embers
TAB Work Programme and Timeline

 
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