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The CERT Version 2019 - a useful tool to facilitate the reporting of emissions


The ICAO CERT Version 2019 was published by ICAO and can now be used to estimate 2019 emissions. The tool is now capable of generating an Emissions Report (ER) using the ER template from ICAO. 

Operators eligible to use the CERT as their monitoring method may choose to use it to generate their ER directly by filling in all the mandatory information and inserting flights information (aircraft type and aerodromes of origin and destination, both in the form of ICAO code). The emissions estimates are done automatically, aggregation of the data and generation of the ER may be also done in one click.

The tool can also be used by operators using one of the Fuel Use Monitoring Methods (FUMMs) to fill in their data gaps and to perform quality checks on their reported emissions.

The 2019 version of CERT represents indeed a significant upgrade over last year’s version, as it has introduced the capability to estimate 2019 emissions and generate an ER. The ER generated by the tool can be in either pdf or Excel format, and it is accompanied by a Log of Assumptions to be submitted to your verifier as CERT-generated reports must be independently verified.
The CERT tool is rather straightforward to use and is capable of estimating CO2 emissions based on either flight block time, or the great circle distance between origin and destination aerodromes. Note that the great circle distance calculator is built into CERT, and the user only needs to input the ICAO codes of the origin and destination aerodromes. Data input can be on an individual flight basis (i.e. one flight at a time), or as a “summary” of total flights operated for each origin-destination pair and aircraft type.

Alternatively, data can also be added from a CSV file. After all information is entered, CERT performs an (optional) check of the input data by verifying the aircraft and aerodrome codes against the ICAO databases, and then the CO2 emissions estimates are calculated. The output is an estimate of the CO2 emissions for each aircraft type-origin-destination entry, and a statement whether the said entry is subject to CORSIA or not. Finally, an ER can be generated, with an aggregation on an aerodrome pair or state pair basis, as desired.
For the 2019 and 2020 monitoring years, aeroplane operators (AOs) with annual CO2 emissions not exceeding 500,000 T are eligible to use CERT to generate their ER, while aeroplane operators with emissions exceeding 500,000 T CO2 must use one of the approved Fuel Used Monitoring Methods (FUMMs). All operators are required to use CERT for filling data gaps if the gaps do not affect more than 5% of the total number of operated international flights.
Starting from the 2021 monitoring year, CERT threshold decreases tenfold to 50,000 T CO2 of flights subject to offsetting requirements, and AOs with emissions exceeding the threshold have to use one of the approved FUMMs. Operators will still be required to use CERT for filling data gaps, as long as they do not exceed 5% of all operated international flights.
Further details about the CERT tool, including a download link and technical details, can be found on the ICAO website.
Users can also report issues with the tool and seek support via CERT@icao.int.

Read our FAQ on the CERT
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