Hawaii Residents may use, possess and cultivate medical cannabis if they have a signed statement from their physician. Patients may possess up to three ounces at a time and can grow no more than seven plants – with only three of those plants mature. Patients must obtain a state-issued identification card.
Maine Use, possession and cultivation is legal. Patients must obtain written recommendation from their physician. Patients cannot possess more than two and a half ounces, and may cultivate no more than six cannabis plants with only three mature plants. The law establishes a state registry and identification card system, and allows the sale of medical cannabis in state-licensed, non-profit dispensaries.
Maryland There are no penalties or criminal charges for possessors of medical cannabis if they can prove their possession is medically necessary. They must only possess one ounce or less.
Michigan Use, possession and cultivation are legal with written physician authorization. Patients cannot cultivate more than 12 cannabis plants, and they must be kept in an enclosed, locked facility. Patients can only possess 2.5 ounces of usable cannabis. The law establishes a state registry that issues identification cards.
Montana Use, possession and cultivation are legal. Patients must obtain written documentation from their doctor. They may cultivate no more than six cannabis plants. The law establishes a confidential state-run patient registry that issues identification cards. Chronic pain patients face stricter requirements. Patients found guilty of cannabis DUI will have their privileges revoked. Advising physicians will be reported and investigated by the Board of Medical Examiners if they recommend for more than 25 patients per year.