Belt progression is as follows -
After 4 months training, Red(1)
A further 4 months, Blue(1)
Another 4, Orange(1)
Another 4, Green(1)
Another 4, Yellow(1)
And then 8 months, Purple(2)
Another 8, Brown(2)
After min. 1 year, Black - 1st dan
After min. 2 years, 2nd dan
After min. 3 years, 3rd dan
Etc.
1) requires a minimum of 26 classes in the 4 month period
(2) requires a minimum of 52 classes in the 8 month period
Grading
Each belt is subject to grading. You have to be able to demonstrate competency at the level you’re grading for, otherwise, no belt!