Does anybody know where I can find information about what is required of a circuit to meet the various FIA grades? I managed to find out what grades were required for different cars, but I can't find anything about how they get the grades.

FIA site?

I found http://www.cba.org.br/download ... odromos/normas_gerais.pdf

It seems to be part of the FIA sporting code and it should help

EDIT: I found a newer one: http://www.fia.com/resources/d ... 8211263__Appendix_O_a.pdf

I had that one, I was just hoping for something with some more information on the grades. I doubt there's anything around, to be honest.