Oklahoma Medical Cannabis Laws
Registered-patient access rules. Adult-use sales are not legal.
Informational only — not legal advice. Cannabis laws change frequently; verify current rules with the official sources linked below before relying on this page.
Last verified: 2026-08-28
Oklahoma Cannabis Laws — Quick Facts
Status
Medical-only · no adult-use sales
Min. Age
18 for an adult patient license; minors use the minor-patient process.
At Home
8 oz of marijuana in the patient’s residence
Home Grow
Yes, for licensed patients
Source: official state guidance · Facts verified 2026-08-28 · Effective 2026-07-11
Residents & out-of-state visitors
Medical cannabis: patient authorization required
State residents
- Who can buy
- An active Oklahoma medical patient license is required.
- Purchase limit
- Only licensed medical patients; purchases must remain within the possession limits.
- Public possession limit
- 3 oz flower on the person, 1 oz concentrate, and 72 oz edible cannabis.
Out-of-state visitors
- Who can buy
- An approved Oklahoma temporary patient license is required; apply using a valid state-issued out-of-state medical license.
- Purchase limit
- Only licensed medical patients; purchases must remain within the possession limits.
- Public possession limit
- 3 oz flower on the person, 1 oz concentrate, and 72 oz edible cannabis.
- Temporary out-of-state licenses are valid for 30 days. Resident patients may keep up to 8 oz flower at home.
Sources: Official state guidance · Oklahoma temporary patient licenses · Reviewed 2026-09-09
Purchase and possession limits are different. Limits apply within this state; do not carry cannabis across state lines. Medical programs may have separate rules.
Find medical dispensary listings in Oklahoma
574 directory listings across 112 cities.
Browse all Oklahoma dispensaries →1. Status & Authority
- Legal Since: 2018 (State Question 788)
- Governing Agency: Oklahoma Medical Marijuana Authority (OMMA)
- Statute/Citation: 63 O.S. § 420 et seq.; OAC 442:10
- Medical Exists: Yes
- Retail Sales Operational: Medical sales only; no adult-use market
2. Who Can Purchase
- Minimum Age: 18 for an adult patient license; minors use the minor-patient process.
- ID Requirements: Active OMMA patient or caregiver credential must be verified for each purchase.
- Temporary License: Approved out-of-state patient licenses are valid for 30 days.
- State residents: An active Oklahoma medical patient license is required.
- Resident vs. Out-of-State/Visitor: An approved Oklahoma temporary patient license is required; apply using a valid state-issued out-of-state medical license.
3. Purchase & Possession Limits
- Resident purchase: Only licensed medical patients; purchases must remain within the possession limits.
- Visitor purchase: Only licensed medical patients; purchases must remain within the possession limits.
- Resident public possession: 3 oz flower on the person, 1 oz concentrate, and 72 oz edible cannabis.
- Visitor public possession: 3 oz flower on the person, 1 oz concentrate, and 72 oz edible cannabis.
- Note: Temporary out-of-state licenses are valid for 30 days. Resident patients may keep up to 8 oz flower at home.
4. Where & How to Buy
- Dispensaries: OMMA-licensed medical marijuana dispensaries.
- Delivery & Online: Check current OMMA rules and the selected dispensary’s licensed services.
- Adult-Use Sales: Not legal.
- License Verification: Dispensaries must verify patient or caregiver authorization for every purchase.
5. Taxes & Payment
- Taxes: Medical marijuana sales are subject to Oklahoma’s medical marijuana tax and applicable state/local sales taxes.
- Payment: Payment methods vary because cannabis businesses may have limited access to banking.
6. Consumption Rules
- Permitted Locations: Medical use is subject to state and local restrictions and private-property rules.
- Prohibited Locations: Employers and property owners may prohibit possession or use in certain places; federal property remains prohibited.
- Vehicles: Driving under the influence and consuming while operating a vehicle are illegal.
- Sharing: Licensed patients may not share medical marijuana with another person.
7. Home Cultivation
- Allowed: Yes, for licensed patients
- Plant Count Limits: Up to 6 mature plants and 6 seedling plants.
- Security: Cultivation must comply with visibility, safety, property, and local requirements.
8. Penalties
- Unlicensed Possession: Adult-use possession is not legal; medical protections require valid authorization.
- Over-Limit Possession: Amounts above statutory patient limits may result in enforcement and criminal penalties.
- Diversion: Sharing or selling patient cannabis outside the licensed system is prohibited.
- DUI: Driving while impaired remains illegal.
9. Sources
- OMMA — Patient Rights and Responsibilities (Accessed: 2026-08-28)
- OMMA — Patient License FAQs (Accessed: 2026-08-28)