The MTA is governed by a 21-member Board. Members are nominated by the Governor, with four recommended by New York City's mayor and one each by the county executives of Nassau, Suffolk, Westchester, Dutchess, Orange, Rockland, and Putnam counties (the members representing the latter four cast one collective vote). The Board also has six rotating non-voting seats held by representatives of organized labor and the Permanent Citizens Advisory Committee (PCAC), which serves as a voice for users of MTA transit and commuter facilities.