O-Sport Association of Islamic Republic of Iran, pursuant to WOF statute has technical degrees as Follow:

White belt, yellow belt, orange belt, green belt, brown belt and black belt.
Then if the athletes can achieve the black belt; they will arrived to fight’ stage and from now on, the degrees will been as the belt of DAN black, they are:
Black Belt 1DAN, Black Belt 2 DAN, Black Belt 3 DAN, Black Belt 4 DAN, Black Belt 5 DAN, Black Belt 6 DAN , Black Belt 7DAN, Black Belt 8 DAN, Black Belt 9 DAN, Black Belt 10 DAN
Refer to under pages for achieving more information about the list of black belts number 1 to 6:

Black Belt 1DAN,
Black Belt 2 DAN,
Black Belt 3 DAN,
Black Belt 4 DAN,
Black Belt 5 DAN,
Black Belt 6 DAN,
Black Belt 7DAN,
Black Belt 8 DAN,
Black Belt 9 DAN,
Black Belt 10 DAN