US State

Cannabis and hemp laws

Kansas

Recreational and medical marijuana illegal; THCA, delta-8, hemp delta-9, delta-10 and HHC restricted

Adult use
Illegal
Medical
Illegal
Last reviewed
May 27, 2026

Kansas

Cannabinoid status board

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Delta-10 THC

Restricted

Limits

Synthetically converted delta-10 falls inside the AG Opinion No. 2021-4 reading of Schedule I. Smokable and vape formats barred under K.S.A. 2-3901(d). No adult-use or medical program.

Key law

Kansas Commercial Industrial Hemp Act, K.S.A. 2-3901; Kansas Uniform Controlled Substances Act; AG Opinion No. 2021-4

Effective

December 2, 2021

Full rules

Delta-8 THC

Restricted

Limits

Synthetically converted delta-8 treated as Schedule I per AG Opinion No. 2021-4. Naturally occurring trace delta-8 inside finished hemp products under 0.3 percent total THC tolerated. Smokable and vape formats barred under K.S.A. 2-3901(d).

Key law

Kansas Commercial Industrial Hemp Act, K.S.A. 2-3901; Kansas Uniform Controlled Substances Act; AG Opinion No. 2021-4

Effective

December 2, 2021

Full rules

Delta-9 THC

Restricted

Limits

KDA reads 'total THC' at or below 0.3 percent at retail, calculated as delta-9 plus THCA at 0.877. No statewide per-serving milligram cap. K.S.A. 2-3901(d) bars hemp cigarettes, cigars, teas, and vape products. No adult-use or medical program.

Key law

Kansas Commercial Industrial Hemp Act, K.S.A. 2-3901 et seq.; AG Opinion No. 2021-4; Kansas Department of Agriculture rulemaking

Effective

May 24, 2019

Full rules

HHC

Restricted

Limits

Hydrogenated HHC falls inside the AG Opinion No. 2021-4 reading of Schedule I. Smokable and vape formats barred under K.S.A. 2-3901(d). No adult-use or medical program.

Key law

Kansas Commercial Industrial Hemp Act, K.S.A. 2-3901; Kansas Uniform Controlled Substances Act; AG Opinion No. 2021-4

Effective

December 2, 2021

Full rules

THCA

Restricted

Limits

KDA reads 'total THC' (delta-9 plus THCA at 0.877) at retail. Smokable flower, cigarettes, cigars, teas, and vape products are barred under K.S.A. 2-3901. No adult-use or medical program.

Key law

Kansas Commercial Industrial Hemp Act, K.S.A. 2-3901 et seq.; AG Opinion No. 2021-4; Kansas Department of Agriculture rulemaking

Effective

May 24, 2019

Full rules

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Kansas

Latest news and analysis

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Kansas 2025: SB 292 Targets Intoxicating Hemp—Age‑21 Sales, Potency Caps, and Testing On Deck?

Kansas SB 292 targets intoxicating hemp in 2025 with age-21 sales, potency caps, and mandatory testing, reshaping retail and manufacturer duties.

Kansas 2025: SB 292 Targets Intoxicating Hemp—Age‑21 Sales, Potency Caps, and Testing On Deck?

Kansas SB 292 targets intoxicating hemp in 2025 with age-21 sales, potency caps, and mandatory testing, reshaping retail and manufacturer duties.

FAQ

Common questions

Is marijuana legal in Kansas?

Recreational marijuana is illegal in Kansas. Medical marijuana is not legal.

Is THCA legal in Kansas?

Restricted. Kansas does not have an adult-use or medical cannabis program.

Is delta-8 THC legal in Kansas?

Restricted. Kansas Attorney General Opinion No. 2021-4, issued December 2, 2021, concluded that synthetically produced delta-8 tetrahydrocannabinol is a Schedule I controlled substance under the Kansas Uniform Controlled Substances Act.

Is hemp-derived delta-9 THC legal in Kansas?

Restricted. Hemp-derived delta-9 edibles, beverages, tinctures, and topicals are tolerated at Kansas retail only when total THC, calculated as delta-9 plus THCA at 0.877, stays at or below 0.3 percent on a finished-product basis.

This is general information, not legal advice.

Seed Legality

KS has no medical or adult-use program; viable seeds are marijuana, and hemp seed requires a KDA license.
Hemp seeds
Restricted
Marijuana seeds
Illegal
Sale
Illegal
Transacting
Illegal
Gifting
Illegal

K.S.A. 21-5701 defines marijuana to include seeds of all Cannabis varieties, exempting only sterilized seed incapable of germination and industrial hemp, so selling, buying, or gifting viable marijuana seed violates K.S.A. 21-5705/21-5706 in one of the last states with neither a medical nor adult-use program. Viable hemp seed may be acquired and planted only by growers licensed by the Kansas Department of Agriculture under the Commercial Industrial Hemp Act, K.S.A. 2-3901 et seq.; 2025's SB 292 tightened hemp product rules without liberalizing seed access.

Key law:
K.S.A. 21-5701, 21-5705, 21-5706; K.S.A. 2-3901 et seq.
Last reviewed:
July 3, 2026
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This section is provided for informational purposes only and is not legal advice. Seed laws change frequently — verify current law with qualified counsel before making decisions.
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