Drum Corps International (DCI), formed in 1972, is the non-profit governing body for junior drum and bugle corps in the U.S. and Canada. Junior corps are composed of members 21 years of age and younger. DCI is composed of member corps who have earned their membership through competition. It is responsible for developing and enforcing the rules of competition and is the sanctioning body for junior corps competitions. DCI is headquartered in Indianapolis, Indiana. Its Board of Directors is composed primarily of directors of the member corps.