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mass laws on growing weed

You cannot use medical marijuana in any form—including smoking, vaping, or eating—in public places or on federal land.

Qualifying Pediatric Patients under the age of 18 must be approved by two Massachusetts-licensed certifying physicians, who must diagnose the Patient as having either a debilitating life-limiting illness or condition. Learn more

Qualifying Patients over 18 years of age.

If you have more than one ounce of cannabis in your home, it must be locked in a secure place. In fact, it’s best to lock away all cannabis-based products in childproof packaging to keep kids and pets safe.


It’s illegal to drive across state lines with any kind of medical marijuana product. It’s also against the law to transport it on a plane, train, boat, or other mode of transportation outside of Massachusetts.

(b) Restrictions on personal possession. No person shall possess more than 1 ounce of marijuana or marijuana products within the person’s place of residence pursuant to section 8 of this chapter unless the marijuana and marijuana products are secured by a lock. A person who violates this subsection shall be punished by a civil penalty of not more than $100 and forfeiture of the marijuana.

(h) Notwithstanding chapter 94C, a person less than 21 years of age, except a qualifying patient holding a valid registration card for the medical use of marijuana, who cultivates not more than 12 marijuana plants shall be punished by a civil penalty of not more than $100 and shall complete a drug awareness program established pursuant to section 32M of chapter 94C. If that person is less than 18 years of age, the parent or legal guardian of that person shall be notified in accordance with section 32N of said chapter 94C. If a person is less than 17 years of age at the time of the offense and fails to complete a drug awareness program not later than 1 year after the offense, that person may be subject to delinquency proceedings.

(d) Possession of marijuana in motor vehicles. No person shall, upon any way or in any place to which the public has a right of access, or upon any way or in any place to which members of the public have access as invitees or licensees, possess an open container of marijuana or marijuana products in the passenger area of any motor vehicle. A person who violates this subjection shall be punished by a civil penalty of not more than $500. For purposes of this section, ”open container” shall mean that the package containing marijuana or marijuana products has its seal broken or from which the contents have been partially removed or consumed and ”passenger area” shall mean the area designed to seat the driver and passengers while the motor vehicle is in operation and any area that is readily accessible to the driver or passenger while in a seated position; provided however that the passenger area shall not include a motor vehicle’s trunk, locked glove compartment or the living quarters of a house coach or house trailer, or if a motor vehicle is not equipped with a trunk, the area behind the last upright seat or an area not normally occupied by the driver or passenger.