Maine's adult-use threshold and possession cap
Maine's Office of Cannabis Policy (OCP) says its adult-use program serves people 21 and older. Title 28-B §1501 permits an adult to use, possess, or transport up to 2.5 ounces of cannabis, or a combined cannabis/concentrate amount up to 2.5 ounces that includes no more than 10 grams of concentrate. Check the OCP consumer FAQ and statute.
Public places, private property, and vehicles
OCP says consuming cannabis in any form is prohibited in public places and only permitted on private property, where an owner may still prohibit use or possession. The agency also says a vehicle's operator and passengers may not consume cannabis on a public way and driving under the influence is illegal.
Medical access and travel checks
Maine has a separate medical program. OCP says leaving Maine with any cannabis products, medical or adult-use, is illegal. Do not infer that Maine rules authorize crossing a state or national border. For the broader federal boundary, see U.S. cannabis-law basics.
Quick FAQ
Who may possess adult-use cannabis in Maine?
Maine OCP says its adult-use program serves consumers 21 and older; medical access is a separate program.
What amount does Maine allow for adult use?
The OCP FAQ and Title 28-B §1501 list up to 2.5 ounces of cannabis, or a combined amount of cannabis and concentrate that includes no more than 10 grams of concentrate.
Can I consume cannabis in public or in a vehicle on a public way?
No. OCP says use in public places is prohibited and vehicle occupants may not consume cannabis on a public way; driving under the influence is illegal.
Can I take Maine cannabis across a state line?
No. Maine OCP says leaving Maine with cannabis products, whether medical or adult-use, is illegal.
Sources
- Maine OCP FAQ -- directly read 2026-09-25.
- Maine Title 28-B §1501 -- official endpoint; direct fetch timed out, but its official indexed text matches the OCP FAQ's directly read amount.
Sources checked 2026-09-25.