Montana Cannabis Laws for Travelers

Possession limits, transport rules, and where you can legally consume in Montana.

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Adult-Use Legal

Quick Facts

Public Possession

1 oz (28g) flower

Home Possession

1 oz flower; up to 4 plants per person (2 mature, 2 seedlings)

Transport Rules

Sealed container, not accessible to driver. Canada border to the north: federal crossing — never bring cannabis. National parks (Glacier) are federal land where cannabis is illegal.

Medical Reciprocity

No Reciprocity

Montana does not recognize out-of-state medical cannabis cards. All visitors 21+ purchase from adult-use retail.

Dispensaries & Purchasing

Licensed adult-use retailers operating since January 2022. Billings, Missoula, Bozeman, and Great Falls have the most dispensaries. Curbside pickup available. Home delivery is NOT legal under the MMRTA.

Purchase limit: 1 oz flower per transaction

Where You Can Consume

Illegal in public spaces. Private property and licensed venues only.

Key Facts for Travelers

I-190 passed November 2020; recreational retail launched January 1, 2022
Home delivery is NOT permitted — in-store or immediate curbside pickup only
Home cultivation: up to 4 plants per person (2 mature, 2 seedlings)
Local jurisdictions can opt out of allowing cannabis businesses
Glacier National Park: federal land — cannabis is illegal inside park boundaries
Canada border: federal customs — never cross with cannabis

Never Cross State Lines with Cannabis

Transporting cannabis across any state line is a federal crime under the Controlled Substances Act, regardless of laws in both states. This applies to driving, flying, and mailing. Penalties range from fines to felony charges.

Frequently Asked Questions

Can tourists buy cannabis in Montana?

Yes. Adults 21+ can purchase from licensed dispensaries. Billings, Missoula, and Bozeman have the most options, including some near popular tourist areas like Glacier National Park.

Is delivery available in Montana?

No. Montana's MMRTA prohibits home delivery. Dispensaries may sell on-site or hand over orders immediately outside (curbside). No delivery to residences.