Oklahoma Cannabis Laws & Regulations

Oklahoma allows medical marijuana for licensed patients, but recreational use remains illegal. According to the Oklahoma Medical Marijuana Authority (OMMA), patients can access cannabis products with a valid license. Using or possessing cannabis without one may lead to penalties.

Is Weed Legal in Oklahoma?

Cannabis is not legal for recreational use in Oklahoma. However, medical cannabis has been legal since 2018. Patients with a valid license can possess, purchase, and grow limited amounts. Despite broad medical access, recreational possession is still a misdemeanor and may lead to fines or jail time.

Weed Legalization in Oklahoma

Cannabis was a banned substance in Oklahoma from 1933 to 2018. Hemp CBD oil containing less than 0.3% THC was the first to become legal in Oklahoma in April 2015. In 2015, advocates of cannabis legalization began a petition to add medical marijuana to the 2016 ballot. After some trouble with the bill's language, the vote was delayed until June 2018, when it passed with 57% in favor.

The passing of Oklahoma State Question 788, the Medical Marijuana Legalization Initiative, legalized medical marijuana in Oklahoma and led the state to create the Oklahoma Medical Marijuana Authority (OMMA).  The state continues to refine its medical cannabis program, with the most recent OMMA emergency rules passed in November 2021. Among other things, the emergency rules limit the size of pre-rolls to 1 gram or less and prohibit growers or dispensaries from making or packaging infused pre-rolls. The permanent rules became effective in Jan. 2024 and kept this and other restrictions in place.

As of 2025, the consumption of cannabis is legal for medicinal use only in the state of Oklahoma. While medical cannabis was legalized in 2018, recreational marijuana remains prohibited. Oklahoma’s medical program remains one of the most accessible in the U.S., with no strict list of qualifying conditions. Physicians can recommend cannabis at their discretion.

Buying Legal Weed in Oklahoma

Individuals 18 and over who hold an Oklahoma medical marijuana card can purchase cannabis from state-licensed dispensaries. 

An individual does not need to have a specific qualifying condition to obtain a medical marijuana recommendation. The OMMA states, “When recommending a medical marijuana license, a physician shall use the accepted standards a reasonable and prudent physician would follow when recommending any medication to a patient.” For minors, two recommendations from two different physicians must be obtained before they become eligible to get a medical marijuana card in Oklahoma.

The state levies an 11.5% tax on marijuana purchases, which covers:

• Excise tax
• Sales tax

In addition, local municipalities can tax medical marijuana purchases by up to 4.5%, making the total estimated tax due roughly 12-16% depending on location.

Oklahoma medical marijuana tax revenue of up to $65 million is split between the State Public Common School Building Equalization Fund (59.23%), the OMMA (34.62%), and the Health Department (6.15%). Any excess taxes over $65 million are allocated to the General Revenue Fund of the State Treasury.

Is Cannabis Delivery Available in Oklahoma?

No, marijuana delivery is not available for either medicinal or recreational purposes in the state of Oklahoma. 

Where Can You Legally Use Weed in Oklahoma?

Cannabis can be legally used in the following areas in Oklahoma:

🗹 Private properties such as residences

Cannabis CANNOT be consumed in:

X Public spaces

X Indoor workplaces

X Motorized vehicles in motion, for both driver and passengers

What are the Restrictions on Cannabis Possession in Oklahoma?

Oklahoma cannabis patients can possess up to 3 ounces on them, 8 ounces at home, and grow a small number of plants. Public consumption is not allowed, and driving under the influence remains a criminal offense. All cannabis must be stored securely and not used around minors or in schools.

Individuals 18 and over with a medical marijuana recommendation may purchase and possess up to:

• Cannabis concentrates: 1 ounces / 28 grams
• Cannabis edibles: 72 ounces / 2,037 grams
• Cannabis topicals: 72 ounces / 2,037 grams
• Dried cannabis flower:  3 ounces / 85 grams

Medical marijuana patients and caregivers in Oklahoma may cultivate cannabis at home:

• Maximum # of plants: 6 mature / 6 immature

The purchase limits for Oklahoma medical marijuana patients are on a per-transaction basis. However, on their person, patients can only possess the above limits. An individual residence may possess up to 8 ounces of dried cannabis flower.

During vehicular transportation:

• Cannabis may either be in a sealed container, or
• Stored in the trunk of the vehicle

While Oklahoma has embraced medical cannabis, recreational use remains illegal. Efforts to legalize adult-use cannabis, such as State Question 820, have been unsuccessful. Residents interested in medical cannabis should ensure compliance with current laws and stay informed about potential legislative changes.

Have Questions About Getting a Med Card in Oklahoma?

Learn more about medical cannabis in Oklahoma with our extensive set of patient resources:

• How to Become a Caregiver in Oklahoma
• Oklahoma Patient FAQs
• How to Get a Med Card in Oklahoma
• Qualifying Conditions in Oklahoma
• Benefits of Getting a Med Card in Oklahoma