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