| Atlantic States Marine Fisheries Compact | 1941 |
| Audiology and Speech Language Pathology Interstate Compact | 2022 |
| Bus Taxation Proration and Reciprocity Agreement | 1982 |
| Compact for Education | 1970 |
| Compact on Mental Health | 1957 |
| Connecticut River Atlantic Salmon Compact | 1979 |
| Connecticut River Valley Flood Control Compact | 1949 |
| Counseling Compact | 2022 |
| Driver License Compact | 1986 |
| Emergency Management Assistance Compact | 1999 |
| International Emergency Management Assistance Compact | 2008 |
| Interpleader Compact | 1957 |
| Interstate Agreement on Detainers | 1959 |
| Interstate Agreement on Qualifications of Educational Personnel | 1969 |
| Interstate Compact for Adult Offender Supervision | 2004 |
| Interstate Compact for Juveniles | 1957 |
| Interstate Compact for the Placement of Children | 2022 |
| Interstate Compact on Adoption and Medical Assistance | 1985 |
| Interstate Compact on Educational Opportunity for Military Children | 2014 |
| Interstate Compact on Mentally Disordered Offenders | 1969 |
| Interstate Compact on the Placement of Children | 1965 |
| Interstate Insurance Product Regulation Compact | 2004 |
| Interstate Library Compact | 1963 |
| Interstate Medical Licensure Compact | 2016 |
| Interstate Regional Planning Compact | 2015 |
| Maine-New Hampshire School District Compact | 1969 |
| Merrimack River Flood Control Compact | 1989 |
| Multistate Lottery Agreement | 1995 |
| National Crime Prevention and Privacy Compact | 2003 |
| New England Higher Education Compact | 1955 |
| New England Interstate Corrections Compact | 1969 |
| New England Interstate Planning Compact | 1965 |
| New England Interstate Water Pollution Control Compact | 1951 |
| New England Police Compact | 1969 |
| New England Radiological Health Protection Compact | 1967 |
| 1967 |
| New Hampshire-Vermont Interstate Public Water Supply Compact | 1995 |
| New Hampshire-Vermont Interstate School Compact | 1961 |
| New Hampshire-Vermont Interstate Sewage and Waste Disposal Facilities Compact | 1975 |
| Nonresident Violator Compact | 1982 |
| Northeastern Interstate Forest Fire Protection Compact | 1996 |
| Nurse Licensure Compact | 2017 |
| Occupational Therapy Licensure Compact | 2021 |
| Physical Therapy Licensure Compact | 2017 |
| Psychology Interjurisdictional Compact | 2019 |
| Social Work Compact | 2024 |
| State Authorization Reciprocity Agreement | 2014 |
| Tri-State Lotto Compact | 1985 |
| Uniform Unclaimed Property Act | 1965 |
| Wildlife Violator Compact | 2014 |