Montana legalized cannabis only for treating certain debilitating conditions.
It is a crime to possess any amount of cannabis for non-patients. In the case of first violation, penalties for possessing up to 60 grams of marijuana include a 6-month imprisonment and a maximum fine of $500. The second offense is punishable by a sentence of 3 years in jail and a fine of $1,000. Possession of any amount of the substance with intent to distribute entails imprisonment for up to 20 years and a $50,000 fine.
A person who has been caught for selling any amount of marijuana may be fined $50,000 and imprisoned for a minimum of 1 year.
Cultivation of less than 1 pound or 30 plants of cannabis may be the reason to incarcerate the person for 10 years and fine them $50,000.
A patient (or their primary caregiver) who has obtained an ID card may legally possess up to 1 oz of usable marijuana and cultivate no more than 4 plants and 12 seedlings.