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The U.I.V. is an international federation of velodromes and organisers of track cycling events. The members of U.I.V. are organisers of 6-days races and other important international track cycling events. U.I.V.'s tasks include the promotion of track cycling, the organisation of track cycle races according to the UCI regulations as well as the setup of an anual international calendar which is subject to the approval of the executive committee of UCI.