Does Montana accept out-of-state medical cards?
Not addressed in the sources reviewed; the registry is only for Montana residents. Visitors 21+ can buy adult-use marijuana.
Traveling from Montana
Your Montana card is issued under Montana law, so other states decide for themselves whether to honor it. Never carry cannabis across state lines — that's a federal offense, including on flights.
Read our reciprocity guide.
Sources
- Montana DOR - Cardholder Information
- Montana DOR - Physician Statement for a Debilitating Medical Condition
- MCA 16-12-102 - Definitions
- MCA 16-12-515 - Legal protections, allowable amounts
- MCA 16-12-509 - Written certification, accompanying statements
- MCA 16-12-502 - Definitions (standard of care)
This guide is general information, not medical or legal advice. Laws change — confirm details with your state agency. State facts last checked October 7, 2026.