The Thirtieth Amendment (Amendment XXX) grants the District of Columbia full representation in the United States Congress, and full representation in the Electoral College system. It however does not grant the District full participation in the process by which the Constitution is amended. The Amendment also repeals the Twenty-third Amendment making it one of three to completely repeal a previous Amendment to the Constitution, the others being the Twenty-first and Twenty-ninth. This amendment was proposed by the Congress on August 21, 2010, and ratified on January 22, 2012.