Arizona Marijuana Laws (2026): A Beginner’s Guide
Quick answer: Yes, marijuana is legal in Arizona for adults 21 and older, and the state has a medical program too. Adults can carry up to 1 ounce, of which no more than 5 grams can be concentrate. You can grow up to 6 plants at home (12 if two or more adults live there), but public use is still an offense.
Last verified: October 20, 2026, against the Arizona Revised Statutes §36-2852 (Prop 207) and the Arizona Department of Health Services. Laws change, so check the official site before you travel or buy.
| Recreational | Yes. Voters passed Prop 207 in November 2020; sales started January 2021 |
|---|---|
| Medical | Yes, since 2010 (Arizona Medical Marijuana Act) |
| Minimum age | 21 for adult use; younger patients need a medical card (minors need a caregiver) |
| Possession limit | 1 ounce, of which no more than 5 grams of concentrate |
| Home grow | 6 plants per adult; 12 per home with 2+ adults, in a locked, hidden space |
| Public use | Smoking in public is a petty offense |
| Driving limit/DUI rule | Illegal to drive impaired “to even the slightest degree” |
| Medical card for visitors | Out-of-state cards don’t get you into medical dispensaries; adults 21+ can use adult-use stores |
Who can buy?
Any adult 21 or older with valid government ID, resident or not. Arizona voters approved Prop 207, the Smart and Safe Arizona Act, in November 2020. Possession became legal on November 30, 2020, and the first adult-use sales happened in January 2021.
The medical program, which started in 2010, still exists. Arizona residents with a qualifying condition and a certification from a doctor can get a registry card from the Arizona Department of Health Services. Patients under 21 can qualify (minors through a caregiver), and cardholders pay lower taxes and have a larger limit: up to 2.5 ounces every 14 days. Check ADHS for the current card fee.
One federal footnote: recreational marijuana is still Schedule I under federal law. In April 2026, marijuana covered by a state medical license (and FDA-approved products) moved to Schedule III, and broader rescheduling was paused on September 29, 2026.
Where can you buy?
At dispensaries licensed by ADHS. Most Arizona dispensaries hold both medical and adult-use licenses, so you’ll often see one counter for each. Cities and towns can limit or ban stores within their borders, so availability depends on where you are. Don’t buy from unlicensed sellers. Only an adult can give another adult up to 1 ounce for free, as long as no money changes hands and it isn’t advertised.
How much can you buy or possess?
Adults 21 and older can possess, buy and transport up to 1 ounce of marijuana, of which no more than 5 grams can be concentrate (like vape oil, wax or shatter). Anything you grow at home can stay at home, even if it’s more than an ounce, as long as it stays there and is secured.
Medical cardholders can buy up to 2.5 ounces every 14 days.
Can you grow your own?
Yes. Each adult can grow up to 6 plants at their primary residence for personal use, with a household maximum of 12 plants when two or more adults live there. Plants must be in an enclosed, locked area (like a locked room or greenhouse) that is out of public view. Landlords can ban growing on their property.
Where can you smoke?
On private property, if the owner allows it. Smoking marijuana in a public place or open space, like a park, sidewalk or trailhead, is a petty offense under Prop 207. Property owners, including landlords, employers, hotels and short-term rentals, can ban it on their property, so ask first.
Heading to the Grand Canyon? It’s federal land, so marijuana is illegal there no matter what Arizona says. The same goes for other national parks, national forests and tribal lands, which can set their own rules.
Can you drive after using?
No. Under Prop 207, it’s still illegal to drive, fly or boat while impaired by marijuana “to even the slightest degree.” Arizona has no THC number that proves you’re sober, and an officer can arrest you based on how you’re driving and behaving. Smoking or vaping in a car is illegal for drivers and passengers alike.
Can you take it out of state?
No. Crossing state lines with marijuana is illegal under federal law, even into neighboring states where it’s legal, like California, Nevada or New Mexico. Arizona also has U.S. Border Patrol checkpoints on highways near the Mexican border, and agents enforce federal law there.
Can your employer fire you?
Usually, yes. Prop 207 says employers can keep drug-free policies and act against workers who use or are impaired at work. Registered medical patients have some extra protection: an employer can’t penalize you just for being a cardholder, unless you used, possessed or were impaired on the job, or the job falls under federal rules or certain safety-sensitive exceptions. Ask HR before assuming you’re covered.
Penalties, briefly
- More than 1 ounce up to 2.5 ounces: Petty offense, fine of up to $300 for a first violation.
- More than 5 grams up to 12.5 grams of concentrate: Petty offense.
- More than 2.5 ounces: Felony, with prison time possible.
- Smoking in public: Petty offense.
- Under 21 (1 ounce or less): A civil penalty of up to $100 for a first offense, a petty offense for a second, and a Class 1 misdemeanor for a third.
- Growing where plants are visible or unlocked: Petty offense for a first violation.
- Selling without a license, or growing beyond the legal plant limits: Can be a felony.
Note on hemp: the federal hemp law passed in November 2025 removes legal status from intoxicating hemp-THC products such as delta-8 and THCA flower, with its main provisions taking effect December 11, 2026. Licensed dispensaries are the safest place to buy THC products in Arizona.
Compare Arizona with other states on our marijuana law hub.
Arizona marijuana law FAQ
Can tourists buy weed in Arizona?
Yes. Any adult 21 or older with valid government ID can buy marijuana at a licensed Arizona dispensary, whether they live in Arizona or not. Visitors follow the same 1-ounce limit (no more than 5 grams of concentrate) as residents.
How much weed can you have in Arizona?
Adults 21 and older in Arizona can possess up to 1 ounce of marijuana, with no more than 5 grams of that as concentrate. Having more than 1 ounce but under 2.5 ounces is a petty offense, and more than 2.5 ounces is a felony.
Can you smoke weed at the Grand Canyon?
No. Grand Canyon National Park is federal land, and marijuana remains illegal there under federal law even though it’s legal in the rest of Arizona. The same applies to other national parks and federal property in the state.
How many plants can you grow in Arizona?
Each adult 21 or older in Arizona can grow up to 6 marijuana plants at home, with a maximum of 12 plants in a home with two or more adults. The plants must be in a locked, enclosed area that can’t be seen from public view.
Is there a legal THC limit for driving in Arizona?
No. Arizona doesn’t use a THC number to decide whether you’re sober. It’s illegal to drive while impaired by marijuana to even the slightest degree, so the safest choice is not to drive after using.