California Marijuana Laws (2026): A Beginner’s Guide
The Complete Guide to the Legal Status of Marijuana in California
Quick answer: Yes, cannabis is legal in California for adults 21 and older, and for medical patients 18 and older with a doctor’s recommendation. Adults can possess up to 28.5 grams (about 1 ounce) of flower and 8 grams of concentrate. You can grow up to 6 plants at home, but you can’t smoke anywhere tobacco smoking is banned.
Last verified: October 20, 2026, against the California Department of Cannabis Control. Laws change, so check the official site before you travel or buy.
| Recreational | Yes. Voters passed Prop 64 in 2016; licensed sales began January 1, 2018 |
|---|---|
| Medical | Yes, since 1996 (Prop 215), the first state to legalize it |
| Minimum age | 21 (18 with a physician’s recommendation for medical use) |
| Possession limit | 28.5 grams of flower and 8 grams of concentrate |
| Home grow | Up to 6 plants per residence |
| Public use | Not allowed in public places or anywhere tobacco smoking is banned |
| Driving limit/DUI rule | No THC number. Impaired driving is DUI; open containers in cars are illegal |
| Medical card for visitors | Not needed for adults 21+; out-of-state cards aren’t recognized for medical purchases |
Who can buy?
According to the Department of Cannabis Control (DCC), you can buy cannabis in California if you are:
- 21 or older, for adult use (bring a valid government photo ID), or
- 18 or older with a physician’s recommendation, for medicinal use.
Tourists are welcome at adult-use stores. California led the country on medical cannabis with Prop 215 in 1996, then legalized adult use with Prop 64 in November 2016. Licensed adult-use sales started on January 1, 2018.
Medical patients get some perks: higher possession and purchase limits, more plants if their doctor recommends it, and an exemption from state sales tax on medicinal cannabis if they have a state Medical Marijuana Identification Card (issued through county health departments).
The federal backdrop hasn’t changed for adult use: recreational marijuana is still Schedule I. In April 2026, marijuana sold under state medical licenses and FDA-approved products moved to Schedule III. Broader rescheduling was paused on September 29, 2026.
Where can you buy?
Only from retailers licensed by the DCC, either in a store, through online ordering for pickup, or by delivery. Every licensed retailer must post its state license in the window, with a QR code you can scan to confirm it’s real. That matters: some shops that look legitimate are unlicensed and may sell untested products with mold, pesticides or other contaminants. You can check any business with the DCC license search.
Cities and counties decide whether to allow stores, and many don’t. Some cities also license on-site consumption lounges, but they’re local and limited, so look up the rules where you are.
How much can you buy or possess?
Adults 21 and older can possess, carry and buy up to:
- 28.5 grams of cannabis flower (just over an ounce), and
- 8 grams of concentrated cannabis, such as vape oil or wax.
Those are also the daily purchase limits at adult-use stores. Medical patients can generally buy and possess up to 8 ounces of dried flower, or more if their physician recommends it. Cannabis you grow at home can stay at home in larger amounts, as long as it’s kept there and secured.
Can you grow your own?
Yes. Adults 21 and older can grow up to 6 plants per residence. If you process your harvest into concentrates, you can’t use volatile solvents like butane or propane at home. Cities and counties can require permits or indoor-only grows, and landlords can prohibit growing, so check your local rules and lease.
Setting up a legal grow? Start with how many plants you can grow in California, then see our beginner guides to LED grow lights, grow tents and leaf trimmers.
Where can you smoke?
On private property, if the owner allows it. Under state law, you can’t:
- Use cannabis in public places like restaurants, bars, parks or sidewalks
- Smoke or vape cannabis anywhere tobacco smoking is banned
- Smoke within 1,000 feet of a school, day care center or youth center while kids are present
- Use or possess cannabis on federal land, like national parks
Most hotels don’t allow cannabis in rooms, and vacation rental owners set their own rules. Ask before you light up.
Can you drive after using?
No. California doesn’t set a THC limit, but officers can stop you and run sobriety tests if they suspect you’re under the influence, and impaired driving is DUI. It’s also illegal to have an open container of cannabis while driving or riding in a vehicle. Keep cannabis in a sealed package or in the trunk.
Can you take it out of state?
No. The DCC says it plainly: cannabis is still illegal under federal law, so you can’t take it across state lines, even to neighboring legal states like Arizona, Nevada or Oregon. Airports and federal checkpoints are federal territory too. Use it in California and leave the rest behind.
Can your employer fire you?
California gives workers more protection than most states. Since January 1, 2024, most employers can’t discriminate against you for using cannabis off the job and away from work. They can still ban cannabis at work and act if you’re impaired on the job. Some jobs are exempt, including building and construction trades, positions that require a federal background check or security clearance, and jobs covered by federal rules.
Penalties, briefly
- More than 28.5 grams of flower or 8 grams of concentrate: Misdemeanor, up to 6 months in jail and a $500 fine.
- Possession on school grounds while school is in session (adults): Misdemeanor.
- Using in public: Infraction with a fine.
- Growing more than 6 plants: Misdemeanor in most cases.
- Selling without a license: Usually a misdemeanor, with felony charges possible in some situations.
- Under 21: Infraction, with drug education or community service for younger offenders.
About hemp: California already restricts intoxicating hemp products under state law, and 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 cannabis retailers are the way to go.
See how other states compare on our marijuana law hub.
California marijuana law FAQ
How much weed can you buy in California?
Adults 21 and older in California can buy and possess up to 28.5 grams of cannabis flower and 8 grams of concentrate. Medical patients 18 and older with a physician’s recommendation can generally buy and possess up to 8 ounces of dried flower.
Can tourists buy weed in California?
Yes. Any adult 21 or older with valid government photo ID can buy cannabis at a California licensed retailer. Visitors follow the same limits as residents and can’t take cannabis out of the state.
Can you smoke weed in public in California?
No. California law bans cannabis use in public places and smoking or vaping anywhere tobacco smoking is banned. Use is allowed on private property when the owner permits it, and in some locally licensed consumption lounges.
How many plants can you grow in California?
Adults 21 and older in California can grow up to 6 cannabis plants per residence. Cities and counties can add rules, such as permits or indoor-only grows, and landlords can prohibit growing.
Can you get fired for using cannabis in California?
Generally not for off-duty use away from work. Since January 1, 2024, most California employers can’t discriminate against workers for using cannabis off the job, though they can ban it at work and some jobs, like construction trades and federal positions, are exempt.
