# Is cannabis legal in O'Fallon?

> Allowed with conditions. Adults 21+ may buy up to 3 ounces of flower (or 24 g of concentrate, or 800 mg of THC in infused products) per transaction from licensed dispensaries. Conditions: Minimum age 21+. Rule jurisdiction: Missouri. Reviewed: 2026-09-09. 2 cannabis listings in O'Fallon on 420.camp; a listing is not proof of a licence.

Source page: https://420.camp/it/weed/united-states/missouri/o-fallon  
Verified: 2026-09-09 (rule reviewed against its source) Scope: Missouri (inherited rule; not a separate local review).  
Published by 420.camp — quote with attribution and a link (https://420.camp/license).

## Facts

- **Catalogue content updated:** 2026-10-18
- **Legal status:** Allowed with conditions. Adults 21+ may buy up to 3 ounces of flower (or 24 g of concentrate, or 800 mg of THC in infused products) per transaction from licensed dispensaries. Conditions: Minimum age 21+. Rule jurisdiction: Missouri. Reviewed: 2026-09-09.
- **Can tourists buy:** Allowed with conditions. Visitors buy on the same terms as residents: any adult 21+ with a valid government-issued photo ID may purchase from a licensed retailer; there is no residency requirement. The Division of Cannabis Regulation publishes a visitors' guide; the 3-ounce limit applies to everyone. Conditions: Minimum age 21+. Rule jurisdiction: Missouri. Reviewed: 2026-09-09.
- **Overview of United States (not a local permission):** La vendita legale per uso adulto esiste solo negli stati e territori che hanno effettivamente avviato un mercato ricreativo, non a livello nazionale. In quelle giurisdizioni i turisti di norma possono acquistare in un dispensario autorizzato a partire dai 21 anni con un documento d'identità valido rilasciato dallo Stato o un passaporto. La cannabis resta una sostanza controllata a livello federale, quindi non puoi trasportare il prodotto oltre i confini statali o le frontiere internazionali.
- **Context source reviewed:** 2026-08-30 (United States; inherited context)
- **Medical access:** Allowed with conditions. Missouri's medical marijuana program (patients with a physician certification) continues with its own limits. Conditions: Minimum age 18+. Rule jurisdiction: Missouri. Reviewed: 2026-09-09.
- **Possession limit:** Allowed with conditions. Adults 21+ may possess up to 3 ounces of dried flower, 24 g of concentrate or 800 mg of THC in infused products. Home cultivation requires a consumer cultivation card. Conditions: Minimum age 21+. Rule jurisdiction: Missouri. Reviewed: 2026-09-09.
- **Minimum age:** 18+ (medical access); 21+ (purchase, tourist access, possession)
- **Important restrictions:** Cannabis may not be taken across a state line — that remains a federal offence.

## Venues in O'Fallon

420.camp lists 2 cannabis venues in O'Fallon: 2 dispensaries. 2 show opening hours, 2 list a phone number, 2 have photos, 0 are confirmed by their owner or a licence check.

Full list: https://420.camp/it/weed/united-states/missouri/o-fallon

## Sources
- [United States legal reference](https://www.ncsl.org/civil-and-criminal-justice/cannabis-overview)
- [Missouri DHSS: adult-use FAQs](https://health.mo.gov/safety/cannabis/faqs-adultuse.php)
- [Missouri DHSS: visiting Missouri? consumer rules](https://health.mo.gov/safety/cannabis/pdf/cannabis-missouri-visitors.pdf)
- [United States — medical access — official guidance](https://www.fda.gov/news-events/public-health-focus/fda-regulation-cannabis-and-cannabis-derived-products-including-cannabidiol-cbd)

Consumption places and rules: https://420.camp/consume/united-states/missouri/o-fallon