Missouri cannabis history
Reviewed
Voters passed adult-use Amendment 3 on November 8, 2022. The health department says it awarded comprehensive licenses on February 3, 2023, and that adult-use sales commenced immediately.
This is a short history, not legal advice. The rules that apply today are on the Missouri cannabis laws page. A date is included only when the linked page states it.
At a glance
November 6, 2018The official canvass shows medical Amendment No. 2 at 1,583,227 yes, 65.6 percent.
December 8, 2022The Revisor marks adult-use Article XIV, Section 2, effective December 8, 2022.
February 3, 2023The health department says adult-use sales commenced immediately when comprehensive licenses were awarded.
Medical use
- The department’s annual report says the first medical retail sales occurred October 16, 2020. A later workshop slide has used a different October date. The annual report is the date used here.
Amendment 3
- The official canvass shows Amendment 3 at 1,092,432 yes, 53.1 percent, and 965,020 no.
- Section 2 says it becomes effective thirty days after the election. Its purpose is to make marijuana legal under state and local law for adults 21 or older and to license commercial production and distribution.
- The department says it met the license deadline by awarding comprehensive licenses on February 3, 2023.
Sources
- 1,092,432 yes, 53.1 percent, and 965,020 no
- the first medical retail sales occurred October 16, 2020
- 1,583,227 yes, 65.6 percent
- thirty days after the election
Citations were checked against the linked pages on October 24, 2026. Claims without a statute, election result, regulator page, court opinion, or news report were left out.