7 things to know about Maine's medical marijuana program

Maine's Medical Use of Cannabis Program is run by the Office of Cannabis Policy, part of the Department of Administrative and Financial Services. Patients do not register with the state. Instead, a Maine-licensed physician, nurse practitioner or physician assistant issues a written certification on tamper-resistant paper or as a matching digital image. Patients show that certification to registered caregivers and medical dispensaries. Maine has no fixed list of conditions: a provider can certify any patient whose diagnosis they believe cannabis may ease. Certifications last up to one year. Patients may grow at home, and Maine also serves visiting patients from approved states.

7 things to know

1. Maine has no state patient registry, and OCP does not charge patients a fee.
2. Physicians, nurse practitioners and physician assistants licensed in Maine may certify patients.
3. Certifications are valid for up to one year, for a term the provider sets.
4. Patients may possess up to 8 pounds of harvested cannabis.
5. Patients may grow 6 mature plants, 12 immature plants and unlimited seedlings.
6. Visiting patients from 28 approved jurisdictions can buy up to 2.5 oz every 15 days.
7. OCP notes that medical cannabis in Maine is not currently subject to mandatory contaminant testing or statewide inventory tracking.

At a glance

• State fee: No state fee (OCP does not charge for patient certifications)
• Card lasts: Up to 1 year (term set by the provider)
• Processing: Certification is issued by the provider at the visit; there is no state application to process
• Patient limit: Up to 8 pounds of harvested cannabis
• Home grow: 6 mature plants, 12 immature plants and unlimited seedlings
• Recreational sales: Legal for adults 21+
• First visit online: Yes

Sources

• Maine Medical Use of Cannabis Program
• OCP Frequently Asked Questions
• Certification Process
• Visiting Patients
• 22 MRSA §2423-B - Medical provider certification
• 22 MRSA §2423-A - Authorized conduct

This guide is general information, not medical or legal advice. Laws change — confirm details with your state agency. State facts last checked October 7, 2026.