Medical Card at 18: The Minor and Caregiver Rules

In the Massachusetts medical program, a patient is 18 or older and a personal caregiver is 21 or older. A patient under 18 follows extra rules, listed below.

A patient who is 18 or older

The regulation's definition of a Qualifying Patient includes a Massachusetts Resident who is 18 years of age or older and has been diagnosed by a Certifying Healthcare Provider as having a Debilitating Medical Condition(state regulation).

This page finds no parent signature requirement for patients 18 and older.

A patient under 18

For a patient younger than 18, the regulation requires an attestation from a parent or legal guardian granting permission to register with the Commission(state regulation).

The regulation says a Qualifying Patient younger than 18 years old must have a designated Personal Caregiver, who shall be his or her parent or legal guardian(state regulation).

A patient younger than 18 may receive a written certification after diagnosis by two Massachusetts licensed Certifying Physicians, at least one of whom is a board certified pediatrician, pediatric subspecialist, oncologist, neurologist, or family physician, with a debilitating Life limiting Illness(state regulation).

The physicians may also certify a patient younger than 18 whose Debilitating Medical Condition is not a Life limiting Illness, if they determine the benefits of medical use outweigh the risks(state regulation).

An MTC is a Medical Marijuana Treatment Center, the medical dispensary.

The regulation says Qualifying Patients younger than 18 years old do not have to have a separate means of identification to enter an MTC(state regulation).

The regulation also says a Qualifying Patient younger than 18 years old cannot enter an MTC without their Caregiver(state regulation).

A caregiver is 21 or older

The regulation defines a Personal Caregiver as a registered person who shall be 21 years of age or older and who has agreed to assist with a patient's medical use of marijuana(state regulation).

Adult-use is a different age line

The Commission says you must be 21 years or older to purchase or grow adult-use marijuana(masscannabiscontrol.com).

Related pages

• Medical patient hub: five steps to your card
• How to get a medical marijuana card in Massachusetts
• Register as a caregiver
• What a certifying provider is

Short answers

Can an 18 year old get a medical card in Massachusetts?

Yes, if a certifying provider has diagnosed a debilitating medical condition. The regulation's definition of a Qualifying Patient includes a Massachusetts Resident who is 18 years of age or older and has been diagnosed by a Certifying Healthcare Provider as having a Debilitating Medical Condition(state regulation).

Who can be a caregiver?

Someone 21 years of age or older, according to the regulation(state regulation).

Can a patient under 18 shop alone?

No. The regulation says a Qualifying Patient younger than 18 years old cannot enter an MTC without their Caregiver(state regulation).

Advanced Dispensary in Peabody

Advanced Dispensary in Peabody is being built and has no opening date.

• Advanced Dispensary in Peabody: address and the patient list

Sources

• "935 CMR 501.002, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "Qualifying Patient means: (a) a Massachusetts Resident or a non-Massachusetts Resident receiving end-of-life or palliative care or cancer treatment in Massachusetts as determined by a Certifying Healthcare Provider, who is 18 years of age or older who has been diagnosed by a Certifying Healthcare Provider as having a Debilitating Medical Condition"
• "935 CMR 501.015, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "If the Qualifying Patient is younger than 18 years old, an attestation from a parent or legal guardian granting permission for the child to register with the Commission"
• "935 CMR 501.015, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "If the Qualifying Patient is younger than 18 years old, that Qualifying Patient shall have a designated Personal Caregiver, who shall be his or her parent or legal guardian."
• "935 CMR 501.010, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "A Qualifying Patient who is younger than 18 years old and has been diagnosed by two Massachusetts licensed Certifying Physicians, at least one of whom is a board certified pediatrician, pediatric subspecialist, oncologist, neurologist, or family physician, with a debilitating Life-limiting Illness, may receive a Written Certification"
• "935 CMR 501.010, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "the physicians may certify a Qualifying Patient who is younger than 18 years old who has a Debilitating Medical Condition that is not a Life-limiting Illness if those physicians determine that the benefits of the medical use of Marijuana outweigh the risks"
• "935 CMR 501.140, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "Qualifying Patients younger than 18 years old do not have to have a separate means of identification to enter an MTC."
• "935 CMR 501.140, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "A Qualifying Patient younger than 18 years old cannot enter an MTC without their Caregiver."
• "935 CMR 501.002, Cornell Legal Information Institute" (law.cornell.edu, read November 5, 2026): "Personal Caregiver means a person, registered by the Commission, who shall be 21 years of age or older, who has agreed to assist with a Registered Qualifying Patient's medical use of Marijuana"
• "Cannabis Control Commission, Know the Laws" (masscannabiscontrol.com, read November 5, 2026): "You must be 21 years or older to purchase or grow adult-use marijuana."