On 2 February, 2021, ICAO held a webinar which focused on the ICAO document “CORSIA Eligible Emissions Units”, and introduced its contents and their relationship to the CORSIA Emissions Units Eligibility Criteria and the work of the Technical Advisory Body (TAB). The webinar also explored the roles of ICAO, TAB, CORSIA Eligible Emissions Units Programmes, and Programme Registries in ongoing eligibility management.