Montana

Yellowstone River Compact (Joined 1951)
Wildlife Violator Compact (Joined 1995)
Western Regional Education Compact (Joined 1951)
Western Interstate Corrections Compact (Joined 1967)
Western Interstate Nuclear Compact (Joined 1973)
Uniform Unclaimed Property Act (Joined 1963)
State Authorization Reciprocity Agreement (Joined 2014)
Respiratory Care Interstate Compact (Joined 2025)
Psychology Interjurisdictional Compact (Joined 2025)
Physical Therapy Licensure Compact (Joined 2017)
Pacific Northwest Economic Region (Joined 1991)
PA Licensure Compact (Joined 2025)
Nurse Licensure Compact (Joined 2015)
Occupational Therapy Licensure Compact (Joined 2023)
Northwest Interstate Compact on Low-Level Radioactive Waste Management (Joined 1983)
Northwest Power and Conservation Council (Joined 1981)
Northwest Wildland Fire Protection Agreement (Joined 1998)
National Crime Prevention and Privacy Compact (Joined 1999)
Multistate Tax Compact (Joined 1969)
Multistate Lottery Agreement (Joined 1989)
Multistate Highway Transportation Agreement (Joined 1981)
Interstate Mutual Aid Compact (Joined 1985)
Interstate Medical Licensure Compact (Joined 2015)
Interstate Massage Compact (Joined 2025)
Interstate Library Compact (Joined 1967)
Interstate Insurance Product Regulation Compact (Joined 2013)
Interstate Compact to Conserve Oil and Gas (Joined 1945)
Interstate Corrections Compact (Joined 1987)
Interstate Compact on the Placement of Children (Joined 1975)
Interstate Compact on Educational Opportunity for Military Children (Joined 2013)
Interstate Compact on Adoption and Medical Assistance (Joined 1991)
Interstate Compact for the Placement of Children (Joined 2009)
Interstate Compact for Juveniles (Joined 1967)
Interstate Compact for Adult Offender Supervision (Joined 2001)
Interstate Agreement on Qualifications of Educational Personnel (Joined 1977)
Interstate Agreement on Detainers (Joined 1963)
Emergency Management Assistance Compact (Joined 1999)
Driver License Compact (Joined 1963)
Dietitian Licensure Compact (Joined 2025)
Counseling Compact (Joined 2023)
Compact on Mental Health (Joined 1971)
Compact for Education (Joined 2001)
Audiology and Speech Language Pathology Interstate Compact (Joined 2023)