Know the Laws

Adult-use of marijuana, or cannabis, is legal in Massachusetts for people ages 21 and older. Read through the laws and policies you need to follow below.

Public Consumption >

Do not consume out in the open.

You cannot use cannabis in any form – smoking, vaping, eating, or otherwise – in public or on federal land.

Safe Transport >

Transport marijuana legally.

Like alcohol, you cannot have an open container of any form of marijuana in the passenger area of your car while on the road or at a place where the public has access. It must be stored in a closed container in your trunk or a locked glove compartment. You cannot drive with cannabis across state lines, bring it on a plane, or mail it, even to states and countries where it is legal.

Safe Storage >

Keep marijuana stored safely and securely.

If you have more than one ounce of cannabis in your home, it needs to be locked up. In fact, it is best to keep any amount locked away to keep kids and pets safe. Make sure to leave products in their childproof packaging.

Driving Under the Influence >

Never get behind the wheel when you are high.

It is illegal to drive under the influence of cannabis. Instead, use public transportation, ride-shares, or catch a ride with a sober friend.

Resident and Employment Rules >

Check the rules where you live and work.

Employers, landlords, cities, and towns may have their own policies about the use of marijuana. Check with them to see what is allowed.

Possession Limits >

Stay within possession limits.

You can have up to one ounce of marijuana on you and up to 10 ounces in your home. If you are growing cannabis, you can have up to six plants in your home and up to 12 plants for two or more adults.

Visiting from out of state?

You may buy cannabis from a retail marijuana establishment if you are ages 21 or older and present a valid government-issued ID.

Remember: It is illegal to drive with marijuana across state lines, and you cannot bring it back with you on a plane or mail it. If you are staying at a hotel or rental accommodation, know that many have policies against using cannabis on their property. Check with them before consuming
on the premises.

For more information about what you can and cannot do, how much you can grow and have, and when and where it is okay to use, read the Massachusetts law and regulations.

Safety Tips

Safety Tip

If marijuana becomes a problem, seek treatment.

Visit the Massachusetts Substance Abuse Helpline or call 800-327-5050. The Helpline is the only statewide, public resource for finding substance use treatment and recovery services. Helpline services are free and confidential. Caring, trained Specialists will help you understand the treatment system and your options.

Keep cannabis products locked away, and out of reach of children and pets.

Remember: Getting high could impair your decision-making.

Check in with your doctor if you are using marijuana and are pregnant or planning to become pregnant.

Driving with cannabis in your vehicle? Always keep it in a closed container locked in your glove box or trunk.

Start low and go slow with edibles! They can take one to four hours to take effect.

Always get a ride when using cannabis. Never get behind the wheel.

Only adults 21 or older can purchase, consume, or grow adult-use cannabis.

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