Airplane operators and state verification authorities must submit their 2024 CORSIA emissions data to ICAO no later than April 30, 2025. Some states recommend that the verified emissions reports be submitted as an Excel file to ensure that all information is readable and will facilitate consolidation of the data. State names used in the reports should be those recognized by ICAO. Operators whose emissions were below the CORSIA threshold should let their state authorities know that a report is not required and, therefore, will not be submitted.