Oklahoma Marijuana Law
Updated September 18, 2026
Current Status: Medical
Oklahoma is one of the 40 states in the United States that has legalized medical marijuana. The state passed State Question 788 in June 2018, legalizing the use and possession of medical marijuana for qualifying patients with a physician's recommendation.
Public Consumption Laws
While medical marijuana is legal in Oklahoma, public consumption of marijuana is still prohibited and can result in fines or even jail time. It is important for patients to understand that they must consume their medical marijuana in private, and should not do so in public places like parks, schools, or on federal land.
Cannabis DUI Laws
Driving under the influence of marijuana is illegal in Oklahoma. However, there are protections in place for individuals who are licensed medical marijuana patients. Law enforcement cannot rely solely on the presence of THC in ones system, and must prove actual impairment. It is important for patients to always use caution and refrain from operating vehicles while under the influence of medical marijuana.
Cultivation Laws
Under the Oklahoma medical marijuana law, patients and caregivers are allowed to grow up to six mature plants and six seedlings for personal use. However, they must obtain a license from the Oklahoma Medical Marijuana Authority (OMMA) before growing any plants.
Possession Laws
Patients with a valid medical marijuana card are allowed to possess up to three ounces of marijuana in public and eight ounces at home. Patients may also possess 72 ounces of edible marijuana. If a patient is found in possession of more than the legal limit, they may face criminal charges and potential penalties such as fines and jail time.
Brief Legislative History
- In 2018, Oklahoma voters passed State Question 788, legalizing medical marijuana in the state.
- In March 2019, Governor Kevin Stitt signed a new law allowing out-of-state medical marijuana patients to obtain temporary licenses to use medical marijuana while visiting Oklahoma.
- In August 2019, a bill was passed that amended the original medical marijuana law and established stricter regulations for dispensaries and growers.
- In March 2023, Oklahoma State Question 820 was rejected by voters, which continues the prohibition of recreational marijuana in the state.
*The information provided in this communication is for general informational purposes only and does not constitute legal advice. For legal advice specific to your situation, please consult a licensed attorney.