| Audiology and Speech Language Pathology Interstate Compact | 2022 |
| Big Rivers Forest Fire Management Compact | |
| Compact for Education | 1967 |
| Compact on Mental Health | 1959 |
| Counseling Compact | 2023 |
| Dentist and Dental Hygienist Compact | 2024 |
| Driver License Compact | 1967 |
| Emergency Management Assistance Compact | 1998 |
| Emergency Medical Services Personnel Licensure Compact | 2020 |
| Falls of the Ohio River Interstate Compact | 1968 |
| Great Lakes Basin Compact | 1955 |
| Great Lakes-St.Lawrence River Basin Water Resources Compact | 2008 |
| Health Care Compact | 2012 |
| Indiana-Kentucky Boundary Compact | 1943 |
| Indiana-Ohio Boundary Compact of 1830 | 1830 |
| Interstate Agreement on Detainers | 1981 |
| Interstate Agreement on Qualifications of Educational Personnel | 1969 |
| Interstate Compact for Adult Offender Supervision | 2003 |
| Interstate Compact for Juveniles | 1957 |
| Interstate Compact for the Placement of Children | 2006 |
| Interstate Compact on Adoption and Medical Assistance | 1984 |
| Interstate Compact on Educational Opportunity for Military Children | 2009 |
| Interstate Compact on the Placement of Children | 1978 |
| Interstate Compact to Conserve Oil and Gas | 1947 |
| Interstate Corrections Compact | 1979 |
| Interstate Earthquake Emergency Compact | 1990 |
| Interstate High Speed Rail Network Compact | 1981 |
| Interstate Insurance Product Regulation Compact | 2006 |
| Interstate Library Compact | 1967 |
| Interstate Medical Licensure Compact | 2022 |
| Interstate Mining Compact | 1974 |
| Interstate Rail Passenger Network Compact | 1981 |
| Midwest Interstate Low-Level Radioactive Waste Compact | 1983 |
| Midwest Interstate Passenger Rail Compact | 2000 |
| Midwestern Higher Education Compact | 1996 |
| Multistate Lottery Agreement | 1990 |
| New Harmony Bridge Interstate Compact | 2018 |
| Nonresident Violator Compact | 1980 |
| Nurse Licensure Compact | 2019 |
| Occupational Therapy Licensure Compact | 2023 |
| Ohio River Valley Water Sanitation Compact | 1939 |
| Physical Therapy Licensure Compact | 2021 |
| Psychology Interjurisdictional Compact | 2022 |
| State Authorization Reciprocity Agreement | 2014 |
| Streamlined Sales Tax Agreement | 2005 |
| Surplus Lines Insurance Multi-State Compliance Compact | 2011 |
| Uniform Unclaimed Property Act | 1961 |
| Wildlife Violator Compact | 1999 |