| Compact on Adoption and Medical Assistance | 1986 |
| Compact on Mental Health | 1967 |
| Driver License Compact | 1971 |
| Emergency Management Assistance Compact | 2011 |
| Interstate Agreement on Detainers | 1965 |
| Interstate Agreement on Qualifications of Educational Personnel | 1969 |
| Interstate Compact for Adult Offender Supervision | 2000 |
| Interstate Compact for Juveniles | 1955 |
| Interstate Compact on Adoption and Medical Assistance | 1986 |
| Interstate Compact on Educational Opportunity for Military Children | 2009 |
| Interstate Compact on the Placement of Children | 1985 |
| Interstate Insurance Product Regulation Compact | 2004 |
| Interstate Medical Licensure Compact | 2023 |
| Multistate Tax Compact | 1968 |
| National Crime Prevention and Privacy Compact | 2006 |
| National Popular Vote Interstate Compact | 2008 |
| Nonresident Violator Compact | 1996 |
| Northwest Interstate Compact on Low-Level Radioactive Waste Management | 1982 |
| Pacific States Marine Fisheries Compact | 2024 |
| State Authorization Reciprocity Agreement | 2016 |
| Uniform Unclaimed Property Act | 1972 |
| Western Interstate Corrections Compact | 1965 |
| Western Regional Education Compact | 1959 |