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19.1 Principles
A car Manufacturer may homologate a maximum of two cars during the five championship seasons (from January 2021
until December 2025) and both homologations will be valid until December 2025
19.1.1 Modifications to the original homologation may be done for the following reasons:
a) Safety, reliability, serviceability, end-of-commercialisation or cost saving
b) Performance
19.1.3 Modifications requested for performance reasons:
Must respect the following conditions:
• No more than 5 Evolution extensions (EVO jokers) per manufacturer allowed from January 2021 until
December 2025, regardless of the number of different homologations.
• An EVO joker equals whatever modification within the perimeter of each chapter of the relevant
homologation form.
• Requested according to the calendar set in Article 19.6.2.
• According to the applicable homologation procedure.
• Applications must provide all necessary supporting information including the targeted performance
improvement, its evolution and, if relevant, an updated datasheet.
• If the FIA/ACO is satisfied, in its absolute discretion, that these changes are acceptable and in line with the
BoP process, they will confirm to the manufacturer concerned that they may be carried out.
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