Cannabis law in Kansas (2026)

Last reviewed: 9 October 2026

In short: Possessing marijuana is a criminal offence in Kansas: a first offence is a class B nonperson misdemeanour, rising with prior convictions. Cultivating and distributing are felonies depending on quantity.

RuleWhat applies
Possession for personal usePersonal use by an adultCriminal offence [1]
Growing at homePersonal use by an adultProhibited [2]
Sale to consumersPersonal use by an adultProhibited [2]
Driving after cannabis usePersonal use by an adultDriving under the influence of any drug to a degree that makes the driver incapable of safely driving is DUI. There is no fixed THC limit; the 0.08 limit applies to alcohol. [3]
Medical cannabisPersonal use by an adultNot available [1]

Notes

  • Subsequent offences: class A misdemeanour after one prior conviction, a drug severity level 5 felony after two or more. Possession of a cannabidiol treatment preparation for a qualifying condition has an affirmative defence under 21-5706(d).
  • Cultivation is graded by plant count; the lowest graded tier is more than 4 but fewer than 50 plants (drug severity level 3 felony).
  • Kansas has no medical cannabis programme. People with a debilitating condition and a physician letter have a defence for possessing a cannabidiol treatment preparation.

Sources

  1. Kansas Office of the Revisor of Statutes: K.S.A. 21-5706 Unlawful possession of controlled substances; penalties (consulted 9 October 2026) · all sources
  2. Kansas Office of the Revisor of Statutes: K.S.A. 21-5705 Unlawful manufacture, cultivation or distribution of controlled substances; penalties (consulted 9 October 2026) · all sources
  3. Kansas Office of Revisor of Statutes: K.S.A. 8-1567 Driving under the influence (consulted 10 October 2026) · all sources

National rules that also apply

These rules are set at national level in the United States and apply here too, alongside the rules above. All national rules for the United States

Possession for personal useCriminal offence (source: U.S. Government Publishing Office (govinfo))
Growing at homeProhibited (source: U.S. Government Publishing Office (govinfo))
Sale to consumersProhibited (source: U.S. Government Publishing Office (govinfo))

Kansas and neighbouring states

StatePossession for personal useGrowing at homeSale to consumersUse or carrying in public placesMedical cannabisVisitors
Kansas
Criminal offence
No (felony)
No
—
No programme; CBD-oil defence only
—
Colorado
⚠ Not yet verified
Up to 6 plants per person; 12 per home
Licensed retail stores
Banned in public; licensed venues excepted
Yes, for registered patients
⚠ Not yet verified
Missouri
Legal for adults 21+, within limits
Yes, with a registration card
Licensed dispensaries
Banned outside licensed areas
Medical programme (ID cards)
Source silent on visitors
Nebraska
1 oz or less: infraction, $300 fine (first time)
⚠ Not yet verified
⚠ Not yet verified
⚠ Not yet verified
Legal for qualified patients; programme not yet running
⚠ Not yet verified
Oklahoma
Criminal offence without a medical licence
⚠ Not yet verified
Prohibited (licensed medical dispensaries only)
—
Licensed patients (broad access)
Out-of-state medical patients: 30-day licence

More rules in Kansas

Compare with the other states and provinces →

General information, not legal advice. Rules change: check the official source before you fly or ride.