D.C. Code § 1-207.04
On May 17, 1974, the District of Columbia Board of Elections certified the results of the election of May 7, 1974, where a majority of the registered qualified voters of the District, voting on the issues of the establishment of the District Charter (subchapter IV of Chapter 2 of Title 1) and the establishment of Advisory Neighborhood Councils, voted in favor of both issues. See 21 DCR 651.