Is Weed Legal in Maine
Yes. Marijuana is legal in Maine for adults 21 and older, and licensed stores have sold it since October 9, 2020. Voters approved adult use in 2016 with 50.26% of the vote (Ballotpedia; Maine Office of Cannabis Policy).
Key facts
- Adults can carry up to 2.5 ounces, including no more than 10 grams of concentrate.
- Each adult can grow up to 6 mature plants and 12 immature plants where they live.
- Smoking in public is a civil violation with a fine of up to $100.
- Question 1 passed by 3,995 votes out of more than 759,000 cast.
Our marijuana laws by state page compares Maine with the other states.
How Much Weed You Can Have in Maine
An adult in Maine can possess or carry up to 2 1/2 ounces of cannabis at a time, and no more than 10 grams of that can be concentrate. An adult may also give the same amounts to another adult as long as no money changes hands (28-B M.R.S. sec. 1501).
Maine marijuana limits for adults 21 and older
Source: Maine Revised Statutes, Title 28-B
Growing Marijuana at Home in Maine
Each adult can grow up to 6 mature plants, 12 immature plants and an unlimited number of seedlings, on land where they live or with the owner’s permission. The law adds rules on how and where the plants are kept (28-B M.R.S. sec. 1502).
Where You Can Use Marijuana in Maine
Maine law lets adults use cannabis only in private places. An adult may use it:
In a private home, including its yard and grounds.
On private property that is not open to the public, if the owner explicitly allows it.
Smoking cannabis in a public place, or anywhere state law bans smoking, is a civil violation with a fine of up to $100 (28-B M.R.S. sec. 1501, sub-sec. 2).
Where Things Stand
Maine marijuana law
As of October 6, 2026
- Adult use (28-B M.R.S. sec. 1501) Law, Legal at 21 and older
Adults may carry up to 2 1/2 ounces, including no more than 10 grams of concentrate. (source)
- Home growing (28-B M.R.S. sec. 1502) Law, Up to 6 mature plants per adult
Plus up to 12 immature plants and any number of seedlings, where the adult lives or with the owner's permission. (source)
- Retail stores (Office of Cannabis Policy) Law, Open since October 9, 2020
Licensed adult-use stores sell to customers 21 and older. (source)
Source: Maine Revised Statutes, Title 28-B; Maine Office of Cannabis Policy
Maine Marijuana Questions
Is weed legal in Maine?
Yes, for adults 21 and older. Voters approved it in 2016 with 50.26%, and licensed stores have sold it since October 9, 2020.
How much weed can you have in Maine?
Up to 2 1/2 ounces at a time, including no more than 10 grams of concentrate.
How many plants can you grow in Maine?
Each adult can grow up to 6 mature plants, 12 immature plants and any number of seedlings, where they live or with the landowner’s permission.
Can you smoke weed in public in Maine?
No. Adults may use cannabis only in a private home or on private property closed to the public with the owner’s permission. Smoking it in public is a civil violation with a fine of up to $100.
What You Can Do
- Read the law yourself in 28-B M.R.S. sec. 1501 and sec. 1502.
- Buy only from licensed stores. The Office of Cannabis Policy licenses them.
- Compare nearby states on our marijuana laws by state page.
- Vote on November 3. The governor and every seat in the Legislature are on the ballot. See our Maine governor race guide.