Marijuana Legalization in Kansas: Penalties, Defenses, and Driving

Marijuana laws in Kansas are among the strictest in the country: recreational use is illegal, there is no medical marijuana program, and the only legal protection is a narrow courtroom defense for certain patients using low-THC cannabidiol oil. Possession of any amount can land you in jail on a first conviction, and a third conviction is a felony.

What Kansas Treats as Marijuana

K.S.A. 21-5706 makes it unlawful to possess marijuana or tetrahydrocannabinols in any form, and K.S.A. 65-4105 classifies both as Schedule I substances.¹² The law draws no distinction between plant material, edibles, concentrates, or oils, and there is no personal-use threshold below which possession becomes legal. Any product containing THC above the 0.3% industrial hemp limit is treated as marijuana.

The one carve-out is hemp. Under the Kansas Commercial Industrial Hemp Act, K.S.A. 2-3901 et seq., hemp is defined as cannabis containing no more than 0.3% delta-9 THC on a dry weight basis, and finished hemp products must stay at or below that same ceiling.³ CBD products that meet that standard are legal to buy and sell in Kansas, but anything over 0.3% THC is marijuana under the criminal code, no matter how the label reads. The safest practice is to buy CBD only when it comes with a certificate of analysis from a third-party lab.

One warning for travelers: cannabis products purchased legally in Colorado, Missouri, or any other state become contraband the moment you cross into Kansas. The dispensary receipt, the sealed packaging, and the state license on the box carry no legal weight here.

Penalties for Possession

Possession penalties escalate quickly with each conviction:

First offense: Class B nonperson misdemeanor, up to six months in county jail and a fine of up to $1,000.⁴
Second offense: Class A nonperson misdemeanor, up to one year in county jail.⁴
Third and subsequent offenses: Drug severity level 5 felony, with a presumptive prison term of 10 to 42 months depending on criminal history score, plus a fine of up to $100,000.¹⁵

The jump from misdemeanor to felony happens faster than most people expect. A felony drug conviction also carries lasting consequences for employment, housing applications, and professional licensing.

Penalties for Distribution

Distribution and possession with intent to distribute are charged under K.S.A. 21-5705, and the severity depends on weight:⁶

Less than 25 grams: drug severity level 4 felony, 14 to 51 months, fines up to $300,000.
25 grams to less than 450 grams: drug severity level 3 felony, 46 to 83 months, fines up to $300,000.
450 grams to less than 30 kilograms: drug severity level 2 felony, fines up to $500,000.
30 kilograms or more: drug severity level 1 felony, 138 to 204 months, fines up to $500,000.⁵

Each sentencing range shifts based on criminal history score under the Kansas sentencing guidelines grid. Courts can also impose a fine equal to double the profit from the offense if that figure exceeds the statutory cap.

Paraphernalia Charges

Paraphernalia is where many people get caught. Under K.S.A. 21-5709, possessing paraphernalia for personal drug use is a Class B nonperson misdemeanor, the same classification as a first possession charge, meaning up to six months in jail even when no marijuana is actually found.⁷ A pipe, grinder, or rolling papers with residue can support a charge.

Selling paraphernalia is treated far more severely. Commercial distribution is a drug severity level 3 felony with a presumptive prison sentence, and selling to a minor is a Class A nonperson misdemeanor carrying up to one year in jail.⁷ Bail for commercial distribution must be at least $50,000 cash or surety.

The Claire and Lola’s Law Defense

Kansas has no medical marijuana program. What it does have, under K.S.A. 21-5706(d), is an affirmative defense known as Claire and Lola’s Law for patients using cannabidiol oil. To raise the defense, all of the following must be true:¹

The person, or their minor child, has a debilitating medical condition as defined by K.S.A. 65-6235.
The person carries a letter dated within the preceding 15 months, signed by the Kansas-licensed physician who diagnosed the condition, printed on the physician’s letterhead, identifying the patient and the condition.
The oil is a cannabidiol preparation whose THC concentration is no more than 5% of the CBD concentration, verified by an independent third-party lab.⁸

The ratio is the detail that trips people up. There is no flat THC cap. If a product contains 20% CBD, the THC must stay at or below 1%. The defense must be shown to any officer who requests it; without the letter at the scene, you can still be charged and will have to produce the documentation in court. The law also does not authorize buying qualifying CBD oil inside Kansas, so patients typically obtain it in other states.

Driving After Marijuana Use

Marijuana-impaired driving falls under the same DUI statute as alcohol, K.S.A. 8-1567. A person commits DUI by operating a vehicle while under the influence of any drug to a degree that makes them incapable of driving safely.⁹ Kansas has no per se THC blood level that automatically triggers a charge; impairment is proved through field sobriety tests, officer observations, and blood or urine analysis. Because THC metabolites can linger for weeks after use, a positive test does not pinpoint when the person last consumed.

Penalties mirror the alcohol DUI scale:⁹

First offense: Class B nonperson misdemeanor. Mandatory minimum of 48 consecutive hours in jail or 100 hours of community service, up to six months, and a fine between $750 and $1,000.
Second offense: Class A nonperson misdemeanor. Minimum 90 days in jail, up to one year, and a fine between $1,250 and $1,750.
Third offense: Class A nonperson misdemeanor, or a severity level 6 nonperson felony if a prior conviction occurred within the preceding 10 years. Fine between $1,750 and $2,500.
Fourth and subsequent offenses: Severity level 6 nonperson felony.

The statute states that being legally entitled to use a drug under Kansas law is not a defense to a DUI charge. A patient protected by Claire and Lola’s Law who drives after using CBD oil can still face DUI charges if an officer concludes they are impaired.

City Ordinances Versus State Law

A handful of Kansas cities have softened how marijuana possession is handled at the municipal level, though these ordinances do not change state law.

Wichita amended Chapter 5.26 of its municipal code after a 2015 voter-approved decriminalization ordinance was struck down by the Kansas Supreme Court as procedurally void. The City Council then adopted amendments creating a presumptive fine of no more than $50 plus court costs for people 21 and older caught with 32 grams or less, provided they have a clean recent record. Wichita police policy also directs officers to issue a notice to appear rather than make a custodial arrest for simple possession.¹⁰

Lawrence adopted Ordinance No. 9568, which establishes a strong presumption that a first-time possession offense of 32 grams or less by an adult 18 or older results in a $1 fine plus court costs and lab fees.¹¹

The catch: these local penalties apply only in municipal court for violations of city ordinances. A state trooper, county sheriff, or highway patrol officer can arrest you under K.S.A. 21-5706 and pursue full state charges. A lenient city ordinance does not shield you from state prosecution, and your exposure often depends on which agency encounters you.

Firearms and Employment Consequences

Any marijuana use, including CBD oil used under Claire and Lola’s Law, triggers a federal firearms prohibition. Under 18 U.S.C. § 922(g)(3), it is a federal crime for any unlawful user of a controlled substance to possess, ship, or receive firearms or ammunition.¹² Marijuana remains a federal controlled substance regardless of state law. ATF Form 4473, the firearm purchase form, asks the buyer whether they are an unlawful user of marijuana, and the form warns that federal law applies even in states that have legalized the drug. Answering falsely is a separate federal offense.

On the employment side, federal contractors and grant recipients must maintain drug-free workplaces under 41 U.S.C. § 8102. An employee working on a federal contract who is convicted of a workplace drug offense must report the conviction to the employer within five days, and the employer must notify the contracting agency within 10 days.¹³ Noncompliance can bring contract termination and debarment for up to five years. Kansas has a significant military and federal contracting footprint, so these rules reach a large share of the workforce. Private employers can also test for marijuana and fire workers who test positive; no state law protects off-duty use.

Where Legalization Stands

Medical marijuana bills have been introduced in Kansas repeatedly in recent years, and none have passed. The most recent, SB 294, would have created the Kansas Medical Cannabis Act authorizing cultivation, processing, distribution, sale, and use of medical cannabis. It died in committee in April 2026.¹⁴ No recreational legalization bill has gained meaningful traction. Proposals get filed, receive some committee attention, and stall before reaching a floor vote. Until that pattern changes, Kansas residents should plan around the current prohibition.

1
Kansas Office of Revisor of Statutes. Kansas Code 21-5706 – Unlawful Possession of Controlled Substances
2
Kansas Office of Revisor of Statutes. Kansas Code 65-4105 – Schedule I Controlled Substances
3
Kansas Office of Revisor of Statutes. Kansas Code 2-3901 – Commercial Industrial Hemp Act Definitions
4
Kansas Office of Revisor of Statutes. Kansas Code 21-6602 – Sentences for Misdemeanors
5
Kansas Office of Revisor of Statutes. Kansas Code 21-6611 – Fines for Crimes
6
Kansas Office of Revisor of Statutes. Kansas Code 21-5705 – Unlawful Cultivation or Distribution of Controlled Substances
7
Kansas Office of Revisor of Statutes. Kansas Code 21-5709 – Unlawful Drug Paraphernalia Offenses
8
Kansas Department for Children and Families. 0255 Claire and Lola’s Law
9
Kansas Office of Revisor of Statutes. Kansas Code 8-1567 – Driving Under the Influence
10
City of Wichita. Amendments to Chapter 5.26 Marijuana Offenses
11
City of Lawrence, Kansas. Ordinance No. 9568
12
Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
13
Office of the Law Revision Counsel. 41 USC 8102 – Drug-Free Workplace Requirements for Federal Contractors
14
Kansas State Legislature. SB 294 – Kansas Medical Cannabis Act