Why not consult the roll cage suppliers. If a similar question arose in the UK that is where I would go first.
Interestingly, over here apart from drag racing most of the cages are FIA (international) and MSA (National) approved. FIA cages can be used at National level but not necessarily the other way round. In the MSA Blue Book that have the regs for all motorsport thare are various patterns for the cages and some are approved for FIA use.
Clive
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