Judo federations have promoted another eleven who are not recognized (at that level of rank) by the Kodokan. On July 28, 2011, the promotion board of USA Judo awarded Keiko Fukuda the rank of 10th "dan", who was the first woman to be promoted to judo's highest level, albeit not a Kodokan-recognized rank. Although "dan" ranks tend to be consistent between national organizations there is more variation in the "kyū" grades, with some countries having more "kyū" grades. Although initially "kyū" grade belt colours were uniformly white, today a variety of colours are used. The first black belts to denote a
Disability classification in judo less. Disability classification in judo Disability judo classification is the medical classification system for disability judo. Judokas with a disability are classified into different categories based on their disability type. The classification is handled by the Blind Sports Association. The blind classifications are based on medical classification, no functional classification. Beyond the level of vision impairment, research done at the Central Institute on Employment Abilities of the Handicapped in Moscow has found differences in functional capabilities based on differences in visual acuity. This does not play a significant role in judo. The sport's classification system is governed by the International