The Delaware River Port Authority (DRPA), officially the Delaware River Port Authority of Pennsylvania and New Jersey, is a bi-state agency instrumentality created by a congressionally approved interstate compact between the state governments of Pennsylvania and New Jersey.

The authority is principally charged to maintain and develop transportation links between the two states with four bridges and a mass transit rail line across the Delaware River.

At this time, political support existed for a regional governing body for a port authority and the construction of another bridge and a high-speed rail line.

On July 17, 1951, United States President Harry S. Truman signed a bill that created the Delaware River Port Authority.

The 16 commissioners also serve as the board of directors for the Port Authority Transit Corporation or PATCO, a DRPA subsidiary.