Please note at all international events in 2022 it is mandatory for all drivers to use a FIA Homologated Body Protector.
Please see the list of homologated body protectors below.
Https://www.fia.com/sites/default/files/l87_approved_kbp_-_8870-2018_6.pdf
Second point
Its is mandatory to use the new body work homologated from 2022. The chassis can be both from the new 2022 homologation and the previous one.