State Laws

Marijuana in California is legal, but that doesn’t mean you can use it anywhere you want.

You must be over 21

In order to purchase, possess or use retail marijuana in California, you must have a valid ID proving you’re 21 or older. It’s that simple.

Use it on private property, not public space

Using marijuana in any form (smoking, eating or vaping) isn’t allowed in public places, including sporting and music venues, campsites, playgrounds, sidewalks and roads, marijuana retail businesses, bars, restaurants and outdoor or rooftop cafes.

So where can you use it? Marijuana use is legal within the confines of private property. Just keep in mind that property owners, landlords, and rental companies can ban the use and possession of marijuana on their premises.

Keep it in California

It's illegal to leave California with any marijuana products. Mailing marijuana from California is also illegal.

Don't drive high

It’s illegal to drive under the influence of marijuana. If you get caught, you could be charged with a DUI. Under California marijuana driving laws, you can’t drive if you have five nanograms or more of THC in your system. As a rule of thumb, if you’re smoking, wait at least six hours before driving. If you’re ingesting, wait at least eight.

Keep it sealed in your car

If you have marijuana in your car, make sure it’s sealed and unused. It’s illegal to open and use any marijuana in a vehicle. That goes for both the passenger and the driver. Stay legal and safe—keep it sealed.

You can only buy and hold so much at a time

Adults over the age of 21 can purchase and possess up to one ounce of marijuana.

Only buy from a licensed California dispensary

Licensed retail locations are the only legal place to buy cannabis in California. It's illegal for any individual to sell marijuana without a state and local marijuana business license. It's also illegal to buy marijuana from an unlicensed individual.

There's a limit to how much you can grow

Californians can grow marijuana in their homes for personal use. Up to six plants are allowed per California resident over age 21, with as many as three plants flowering at one time. Plants must be grown in a secure, locked location, not in a yard. Counties and municipalities can pass stricter laws.

Only medical patients can buy medical marijuana in California

Patients with qualifying debilitating medical conditions can receive a registry identification card for legal access to medical marijuana. Cards are available to California residents and valid only in California. See California medical marijuana license information.

Don't share marijuana with those under 21

It's a felony to give or share retail marijuana with someone younger than 21 years old. This includes family members and friends.

If pregnant or breastfeeding, talk to your doctor

There is no known safe amount of marijuana use while pregnant or breastfeeding. See more information on our pregnant and breastfeeding page.