Is cannabis legal in Montana?

Q: Is cannabis legal in Montana?

Cannabis in Montana is permitted. Recreational cannabis is legal in Montana for adults 21 and older, and a medical program also operates (Initiative 190, 2020; sales began January 2022).

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MONTANA · CANNABIS

Cannabis

Permitted: Recreational cannabis is legal in Montana for adults 21 and older, and a medical program also operates (Initiative 190, 2020; sales began January 2022).

Permitted

Summary

Recreational cannabis is legal in Montana for adults 21 and older, and a medical program also operates (Initiative 190, 2020; sales began January 2022).

Source: https://revenue.mt.gov/taxes/miscellaneous-taxes-and-fees/cannabis/ · Updated July 13, 2026

Montana Cannabis topics

Cannabis Legal Status in Montana →Permitted
Recreational cannabis is legal in Montana for adults 21 and older, and a medical program also operates (Initiative 190, 2020; sales began January 2022).
Possession Limits in Montana →Permitted
In Montana, adults 21 and older may possess up to 1 ounce, of which no more than 8 grams may be concentrate and no more than 800 milligrams of THC may be in edibles.
Home Cultivation in Montana →Permitted
Montana allows home cultivation for adults 21 and older: up to 2 mature plants and 2 seedlings per person, and no more than 4 mature plants and 4 seedlings per residence, kept locked and not publicly visible.
Public Use in Montana →Permitted
Using cannabis in public is prohibited in Montana, and smoking in public carries a civil fine of up to $50.
Buying Cannabis in Montana →Permitted
In Montana you may buy cannabis only from licensed dispensaries in "green" counties, meaning the counties that approved I-190; "red" counties prohibit adult-use sales.

Other Montana laws

Cannabis in nearby states

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