The ICAO CORSIA CERT will have different versions over time. The 2018 version of the ICAO CORSIA CERT allows operators to estimate their CO2 emissions from international flights and assess their eligibility or not of using the ICAO CORSIA CERT as a simplified monitoring method.
2019 version of the ICAO CORSIA CERT includes a functionality to not only estimate CO2 emissions, but also to generate aeroplane operator’s annual Emissions Report. Regarding the estimation of the CO2 emissions, the 2019 version of the tool allows either estimating CO2 emissions based on either Great Circle Distance, or on Block Time input.
From 2021 onwards, the ICAO CORSIA CERT will be updated by including a list of States Pairs subject to CORSIA offsetting requirement for each year.
Τhe ICAO CORSIA CERT is available for download here: (https://www.icao.int/environmental-protection/CORSIA/Pages/CERT.aspx)
