Port Authority of Allegheny County (also known as the Port Authority or sometimes by its former nickname PAT) is the secon-largest public transit agency in Pennsylvania and the 11th-largest in the United States. When considering that its service area is the 20th largest in the U.S. in population, per person the Pittsburgh area enjoys more transit service than 9 larger metro areas. The county owned, state funded agency is based in Pittsburgh and is overseen by a CEO and a ten member board of directors, who report to the county executive.