Gradings split in to two categories, Kyu and Dan.
Kyu gradings are all the gradings from Orange (8th Kyu) to Brown Belt (1st Kyu). Your Instructor will advise you where and when you should attend your next Kyu Grading.
There are waiting periods between the belts.
Orange to Blue Belt - 3 months between gradings
Brown 1 White Stripe to Solid Brown - 4 months between gradings.
Dan Gradings are all black belt gradings, and in Washinkai Karate can only be conducted by Shihan Thompson.
All Dan Gradings take place on Gasshuku (Autumn, Winter and Summer within the UK).
All Washinkai Dan Gradings are recognised by:
English Karate Federation
British Karate Federation
European Karate Federation
World Karate Federation
and the Japanese Karate Federation.