Pennsylvania

Wildlife Violator Compact (Joined 2010)
Wheeling Creek Watershed Protection and Flood Prevention District Compact (Joined 1967)
Susquehanna River Basin Compact
State Authorization Reciprocity Agreement (Joined 2016)
Psychology Interjurisdictional Compact (Joined 2020)
Pymatuning Lake Compact (Joined 1937)
Potomac River Basin Interstate Compact (Joined 1945)
Physical Therapy Licensure Compact (Joined 2020)
Pennsylvania-Delaware Boundary Agreement of 1921 (Joined 1921)
Pennsylvania-West Virginia Boundary of 1887 (Joined 1887)
Ohio-Pennsylvania Boundary of 1887 (Joined 1887)
Ohio River Valley Water Sanitation Compact (Joined 1945)
Nurse Licensure Compact (Joined 2021)
Nonresident Violator Compact (Joined 1979)
New York-Pennsylvania Joint Interstate Bridge Commission (Joined 1919)
New Jersey-Pennsylvania Boundary Agreement of 1783 (Joined 1783)
New Jersey-Pennsylvania Turnpike Bridge Compact (Joined 1951)
Multistate Lottery Agreement (Joined 2002)
Middle Atlantic Forest Fire Protection Compact (Joined 1953)
Interstate Teacher Mobility Compact (Joined 2023)
Interstate Mining Compact (Joined 1966)
Interstate Medical Licensure Compact (Joined 2016)
Interstate Insurance Product Regulation Compact (Joined 2006)
Interstate High Speed Rail Network Compact (Joined 1980)
Interstate Corrections Compact (Joined 1974)
Interstate Compact to Conserve Oil and Gas (Joined 1941)
Interstate Compact on the Placement of Children (Joined 1973)
Interstate Compact on Educational Opportunity for Military Children (Joined 2012)
Interstate Compact on Adoption and Medical Assistance
Interstate Compact For Mutual Military Aid In An Emergency (Joined 1976)
Interstate Compact for Juveniles (Joined 1967)
Interstate Compact for Adult Offender Supervision (Joined 2002)
Interstate Agreement on Qualifications of Educational Personnel (Joined 1969)
Interstate Agreement on Detainers (Joined 1978)
Interpleader Compact (Joined 1978)
Great Lakes-St.Lawrence River Basin Water Resources Compact (Joined 2008)
Great Lakes Basin Compact (Joined 1956)
Emergency Medical Services Personnel Licensure Compact (Joined 2022)
Emergency Management Assistance Compact (Joined 1999)
Driver License Compact (Joined 1996)
Delaware Valley Urban Area Compact (Joined 1965)
Delaware River Basin Compact (Joined 1961)
Delaware River Joint Toll Bridge Compact (Joined 1934)
Delaware River Port Authority Compact (Joined 1931)
Compact on Mental Health (Joined 1967)
Compact for Education (Joined 1967)
Chesapeake Bay Compact (Joined 1985)
Atlantic States Marine Fisheries Compact (Joined 1981)
Appalachian States Low-Level Radioactive Waste Compact (Joined 1985)