I'm from Brazil, and here we use the West/East rule, so we use an odd flight level when we fly between
0/360 - 179, and when we fly between
180 - 359 we fly in an even flight level.
But what should you do in other countries? Where I can find those rules?
I've heard that in Europe it's totally different, and that in some countries in Asia they use meters, instead of feet.
Where can I find this information?