Is marijuana legal in Oklahoma?
Only for medical use. As of 2026, Oklahoma allows licensed patients to buy, possess and grow medical marijuana (weed). Recreational marijuana is not legal.
Status checked November 4, 2026
Contents
Marijuana laws in Oklahoma
Oklahoma voters approved State Question 788 on June 26, 2018, creating a broad medical marijuana program. Recreational marijuana is not legal. Adult-use State Question 820 failed on March 7, 2023.
A licensed patient may consume marijuana legally and may possess up to three ounces on their person, eight ounces in their residence, one ounce of concentrate, 72 ounces of edibles, 72 ounces of topical marijuana, six mature plants and the harvest from those plants, and six seedlings. The rights are cumulative. Patients must be Oklahoma residents and at least 18, or under 18 with two physician signatures and a parent or guardian. There is no separate list of qualifying conditions in the patient-license statute; a physician recommendation is required.
Home grows must be on property the patient owns or has written permission to use, kept from public access, and not visible from an adjacent street to someone with 20/20 vision. Extraction with butane, propane, carbon dioxide or other hazardous materials is prohibited on residential property.
Licensed dispensaries sell to patients and caregivers. Out-of-state medical cardholders may apply for a 30-day temporary Oklahoma license. Marijuana remains illegal under federal law, apart from state-licensed medical marijuana, which moved to Schedule III in April 2026.
Tulsa, OK – Aug 14, 2021: Seed Cannabis Company dispensary Photo: Adobe Stock (editorial use only).
What the law says
Legal
- A person in possession of a state-issued medical marijuana patient license shall be able to:
- Consume marijuana legally;
- Legally possess up to three (3) ounces or eighty-four and nine-tenths (84.9) grams of marijuana on their person;
- Legally possess six mature marijuana plants and the harvested marijuana therefrom;
- Legally possess six seedling plants;
- Legally possess one (1) ounce or twenty-eight and three tenths (28.3) grams of concentrated marijuana;
- Legally possess seventy-two (72) ounces or two thousand thirty-seven and six-tenths (2037.6) grams of edible marijuana;
- Legally possess up to eight (8) ounces or two hundred twenty-six and four-tenths (226.4) grams of marijuana in their residence; and
- Legally possess seventy-two (72) ounces of topical marijuana.
Not legal
- It is expressly prohibited to operate extraction equipment or utilize extraction processes if the equipment or process utilizes butane, propane, carbon dioxide or any potentially hazardous material in a residential property.
- No marijuana plants shall be visible from any street adjacent to the property.
- No employer may refuse to hire, discipline, discharge or otherwise penalize an applicant or employee solely on the basis of such applicant's or employee's status as a medical marijuana licensee
Quoted from Oklahoma Statutes Title 63, §420.
How old do you have to be to use marijuana in Oklahoma?
There's no legal age to buy recreational weed in Oklahoma, because recreational marijuana is illegal at any age. Medical marijuana is different. Patient license applicants must be 18 or older. A special exception is available under 18 if the application is signed by two physicians and the child's parent or legal guardian. Licensed caregivers must be 18 or older. Temporary licenses for visitors also go to people who already hold another state's medical marijuana license.
How much marijuana can you have in Oklahoma?
If you have an Oklahoma medical marijuana patient license, you can have up to three ounces (84.9 grams) on your person and up to eight ounces (226.4 grams) in your residence, plus one ounce of concentrate, 72 ounces of edibles, 72 ounces of topical marijuana, six mature plants and their harvest, and six seedlings. Those limits are cumulative. In a car, the three-ounce on-person limit applies. Without a license, possessing up to 1.5 ounces while stating a medical condition is a misdemeanor punishable by a fine of up to $400 and no jail.
Where can you buy marijuana in Oklahoma?
You can buy medical marijuana in Oklahoma at licensed dispensaries if you have a valid patient or caregiver license. Recreational stores do not exist. Applicants must be Oklahoma residents, except that residents of other states who already hold a medical marijuana license there may get a 30-day temporary Oklahoma license for $100. The regular two-year patient license fee is $100, or $20 for people on Medicaid, Medicare or SoonerCare.
Can you grow marijuana at home in Oklahoma?
Yes. Licensed Oklahoma medical patients may grow six mature marijuana plants and six seedlings, and may keep the marijuana harvested from those plants. The grow must be on property the patient owns or has the owner's written permission to use. Plants may not be accessible to the public or visible from an adjacent street to someone with 20/20 vision. You can't use butane, propane, carbon dioxide or other hazardous extraction methods on residential property. Caregivers may grow for homebound patients, but not for more than five patients.
Where can you use marijuana in Oklahoma?
You can use medical marijuana in Oklahoma if you hold a patient license. Smoking and vaping outdoors in public, or indoors at a workplace, are subject to the same state rules as smoking tobacco. Property owners may ban smoking or vaporizing on the premises or within 10 feet of an entryway, but they may not ban other lawful medical marijuana products that are not smoked or vaporized. Recreational use is illegal. Driving under the influence of marijuana is a separate crime.
How do you get a medical marijuana card in Oklahoma?
To get a medical marijuana card in Oklahoma, you must be an Oklahoma resident, at least 18 (or a minor with two physician signatures and a parent or guardian), and have a physician recommendation. Apply to the Oklahoma Medical Marijuana Authority. The two-year license fee is $100, or $20 if you are on Medicaid, Medicare or SoonerCare. The Authority must approve, reject or deny the application within 14 business days. There is no separate statutory list of qualifying conditions for a patient license.
Can visitors buy or use marijuana in Oklahoma?
Out-of-state visitors can't buy recreational weed in Oklahoma, because it isn't legal. Visitors who already have a medical marijuana license from another state with a regulated medical program can apply for a 30-day temporary Oklahoma patient license, which costs $100 and can be renewed by submitting a new application. Without that temporary license, visitors are not authorized to buy at an Oklahoma dispensary. Taking marijuana out of Oklahoma remains illegal under federal law.
What are the rules on driving and marijuana in Oklahoma?
No, you can't drive high in Oklahoma. Driving under the influence of marijuana, including medical marijuana bought legally, can be charged as DUI. A patient license is not a defense to impaired driving. Possessing marijuana in a car is still subject to the three-ounce on-person limit for licensed patients.
Can an employer in Oklahoma fire you for using marijuana?
You usually can't get fired in Oklahoma just for having a medical marijuana license or a positive marijuana test. Oklahoma law says an employer generally may not fire, discipline or refuse to hire someone solely because they have a medical marijuana license, or solely because of a positive marijuana test, unless federal law requires it. Employers can still act if the person uses, possesses or is under the influence at work, and safety-sensitive jobs are subject to a zero-tolerance standard. Employers do not have to allow marijuana at the workplace.
What are the penalties for breaking marijuana laws in Oklahoma?
Licensed patients acting within 63 O.S. §420 are protected from state arrest and prosecution for medical use. Without a license, possessing up to 1.5 ounces while stating a medical condition is a misdemeanor with a fine of up to $400 and no jail. Other unauthorized possession, sales and unlicensed growing remain crimes under Oklahoma's drug laws. Diverting medical marijuana can bring administrative fines and license revocation. Sharing less than three grams without payment can bring a $400 administrative fine.
Are CBD, hemp and delta-8 products legal in Oklahoma?
Hemp that meets state and federal hemp definitions is regulated separately from medical marijuana in Oklahoma. Intoxicating hemp products marketed as delta-8 or THCA may be treated as marijuana if they fall outside that definition. Medical marijuana itself must come from licensed Oklahoma dispensaries or a lawful patient grow. Separately, a stricter federal hemp definition, with a total-THC standard that counts THCA and a 0.4 mg-per-container cap, takes effect December 11, 2026.
Does federal law still apply in Oklahoma?
Yes. Federal law still applies in Oklahoma. Marijuana remains a Schedule I controlled substance under federal law, with one exception: since April 28, 2026, marijuana covered by a state medical marijuana license and FDA-approved marijuana products are in Schedule III. A broader federal rescheduling proceeding was stayed on September 29, 2026, and has no decision date. State law does not change federal rules on federal land, on carrying marijuana across state lines, or on federally required drug testing, such as for DOT-regulated jobs.
Has the law in Oklahoma changed recently, or is it about to?
Oklahoma already has a broad medical program and still has no adult-use law. State Question 820, which would have legalized recreational marijuana, failed on March 7, 2023. No new legalization date is set. Patient possession and home-grow limits remain those in 63 O.S. §420 and §427.12. New federal hemp limits begin November 12 and December 11, 2026.
Legislation
Sources (8)
- Oklahoma Statutes Title 63, §420 (State Question 788) oscn.net
- Oklahoma Statutes Title 63, §427.12 (patient and caregiver grows) oscn.net
- Oklahoma Statutes Title 63, §427.8 (rights and employment) oscn.net
- oklahoma.gov
- Oklahoma Administrative Code §442:10-2-8 (possession limits) law.cornell.edu
- dea.gov
- federalregister.gov
- congress.gov
General information, not legal advice. Laws change often, so check with the state's cannabis agency before relying on this.
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