Port Authority of Allegheny County (also known as the
Port Authority and formerly as
Port Authority Transit (
PAT) and
PATransit) is the second-largest public transit agency in
Pennsylvania and the 26th-largest in the
United States. The county-owned, state-funded agency is based in
Pittsburgh and is overseen by a
CEO and a nine-member board of upaid volunteer directors, who are appointed by the
county executive and approved by the county council.