Oklahoma voters approved State Question 788 in June 2018, establishing one of the most permissive medical cannabis programs in the nation. Unlike most states, Oklahoma imposes no specific list of qualifying medical conditions—any patient with a physician's recommendation can obtain a license. This open framework led to explosive growth, with the state at one point having more dispensaries per capita than any other. As of January 2026, approximately 320,000 patients hold active medical cannabis licenses and roughly 4,500 businesses are licensed. The Oklahoma Medical Marijuana Authority (OMMA) has since implemented a moratorium on new grower licenses (HB 3143, extended through August 2028) and capped commercial grower licenses at 2,550 to address market oversaturation. A 2023 adult-use ballot measure (SQ 820) failed, and a 2026 initiative effort also fell short of the ballot.
Ask the Expert about OklahomaOkla. Stat. tit. 63, §420A et seq. (Oklahoma Medical Marijuana and Patient Protection Act)
Oklahoma Medical Marijuana Authority (OMMA)