One ounce of useable marijuana may be purchased and possessed by an adult-use consumer. What is one ounce of usable marijuana? (ARM 42.39.118)
1 ounce of marijuana flower
800 milligrams of THC infused marijuana products (e.g., edibles, capsules, topicals, tinctures)
8 grams or 8 milliliters of marijuana concentrates
Adult-use consumers also have limitations on the potency of marijuana and marijuana products. (MCA 16-12-224)
Marijuana sold as flower: 1 ounce of usable marijuana. The total potential psychoactive THC of marijuana flower may not exceed 35%
Marijuana product sold as a capsule: no more than 100 milligrams of THC per capsule and no more than 800 milligrams of THC per package
Marijuana product sold as a tincture: no more than 800 milligrams of THC
Marijuana product sold as an edible or a food product: no more than 100 milligrams of THC. A single serving of an edible marijuana product may not exceed 10 milligrams of THC
Marijuana product sold as a topical product: a concentration of no more than 6% THC and no more than 800 milligrams of THC per package
Marijuana product sold as a suppository or transdermal patch: no more than 100 milligrams of THC per suppository or transdermal patch and no more than 800 milligrams of THC per package
Any other marijuana product: no more than 800 milligrams of THCMontana.