Dan (rank) highest level that might be attained, with instructor certification and judge/judgment authorization being understood as higher-level or more sophisticated. Many arts use between one and ten dan ranks: In some martial arts, black belts are worn for all "dan" grades. In others, the highest grade (10th "dan") wears a red colored belt. In Jūdo and Shotokan 6th to 8th "dan" may wear a red and white-patterned belt and 9th to 10th "dan" may wear a solid red belt. There is some variation even within styles. Generally, belts do not have markings that indicate the actual "dan" grade. Okinawan styles used
German Judo Federation German Judo Federation The German Judo Federation (}) is an association of German judoka. The judo sport in West Germany was organized as a sport of heavy athletics from 1949 to 1954 in the German Athletes Federation (DAB). On 8 August 1953 the German Judo Association was founded by Dan-bearers of the German Dan-Kollegium (DDK) like Alfred Rhode of the 1st German Judo-Club (1st DJC in Frankfurt am Main). Alfred Rhode had introduced judo sport in Germany with the 1st DJC at his Frankfurt summer school in 1932. The separate areas of responsibility of the two associations DJB and DDK