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What's Legal for Adult Use Cannabis?

  • Under California law, adults 21 or older can use, carry, and grow cannabis (marijuana, weed, pot) for recreational use.
  • Purchasing and use of medicinal cannabis is legal you are 18 or older and have a current physician’s recommendation or a valid county-issued medical marijuana identification card, or be a Primary Caregiver as defined in Health and Safety Code Section 11362.7(d).
  • You can consume cannabis on private property, but you cannot consume, smoke, eat, or vape cannabis in public places.  The City of Davis prohibits smoking of cannabis where smoking of tobacco is prohibited.  See Davis Municipal Code Article 34.02 for restrictions.  Property owners and landlords may ban the use and possession of cannabis on their properties.
  • Even though it is legal under California law, you cannot consume or possess cannabis on federal lands like national parks, even if the park is in California.
  • It is illegal to take your cannabis across state lines, even if you are traveling to another state where cannabis is legal.

Medicinal Cannabis

Use of medicinal cannabis is legal if you have a current qualifying physician’s recommendation or a valid county-issued medical marijuana identification card.  You can possess up to eight ounces of dried cannabis and up to six mature cannabis plants, unless the physician’s recommendation specifies a higher amount. 

More information about medical use cannabis is available here.

Please note: You should always consult with your physician prior to using medical cannabis, as you would with any other medication.  The City of Davis is not licensed to provide medical advice in any capacity.

Older Adults

Research shows that the senior population has potential to benefit from the use of medical cannabis. Some chronic pain and health issues have been shown to respond well to medical cannabis.  However, there are risks involved.  Some older Americans have chronic health conditions, which require multiple prescription medications, increasing the risk of adverse drug interactions, which can further endanger their health. Listed below are websites that can provide some information on these interactions.  The burden of the responsibility rests with the individual to become informed, discuss with their physician and to proceed with caution when using medical cannabis.


Even though it is legal under California law, employers have the right to prohibit the use, consumption, possession, transfer, display, transportation, sale, or growing of cannabis in the workplace.  Employers may also enact policies restricting the use of cannabis by employees.  Know your workplace cannabis policies.

Immigration Status

Even though adult use cannabis is legal under California law, it is not legal under Federal law.  If you are 21 years or older but not a U.S. citizen (e.g. an international university student), consuming or possessing cannabis is not permitted and can have serious consequences on your immigration status.

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