First.... We don't give graduations or promotions... you have to work and train hard....

Graduations
For each exam you need to be present physically and mentally and be judged by the board of examinors.
You have to be at least 80% present at all lessons before you can go for your exam.
Your instructor can tell you when you are ready.
Each low level need to be judged by a black belt and in case of a black belt exam at least two grades higher than the student

Promotions
(Special) promotions will be done only on recommendation