The RTA Board consists of 16 directors, with 5 appointed by the Mayor of Chicago, 4 by the members of the Cook County Board elected outside of Chicago, one by the Cook County Board President, and one each by the County Board Chairman of the five collar counties. The Chairman of the RTA Board is the 16th member, and is appointed with the concurrence of 11 of the other RTA Board members, including at least 2 each from Chicago, suburban Cook County, and the collar counties, respectively. The chief executive officer is the executive director, who is appointed by the Chairman with the concurrence of 11 of the other directors.