A student with no prior training joins as 9th Kyu and is eligible to take ranking examinations every 3 to 4 months of training. Since there are 9 examinations you must pass to attain a black belt, the 1st Dan requires a minimum three years of diligent training. It takes several years to attain each subsequent Dan.
At the end of each term, students who have fulfilled the requirements of the syllabus will be invited to grade. Being invited to grade does not guarantee you will progress. Students are encouraged to practice at home to ensure they are eligible for gradings when they are available. If a student has not completed sufficient training, or has not sufficiently mastered the techniques to complete the grading, they will not be put forward.
Junior & Senior Grading Syllabus can be found: JKA-SKC Grading Syllabus
Students progress through the kyu grades (coloured belts) as below: