DUI Laws in Kansas: Penalties, BAC Limits & License Suspension

In Kansas, drunk or drugged driving is charged as "driving under the influence" (DUI) under K.S.A. 8-1567. The per se blood alcohol concentration (BAC) limit is 0.08% for regular drivers 21 and older — the same national standard used in every state. But two numbers matter more in the first hours after an arrest: if you refuse or fail a chemical test, the Kansas Department of Revenue, Division of Vehicles can suspend your license before any criminal case is ever decided, and you generally have only 14 calendar days from the date you're served notice to request a hearing to fight it. Miss that window and the suspension takes effect automatically. Read the administrative-suspension section below before you do anything else.

What This Offense Is Called in Kansas

Kansas law uses the term "driving under the influence" (DUI), codified at K.S.A. 8-1567. Kansas does not use "DWI," "OWI," "OUI," "OVI," or "DUII" — those are terms other states use for the same basic conduct (driving while impaired by alcohol or drugs). If you see paperwork or a citation referencing "8-1567," that's the DUI statute.

BAC Limits in Kansas

• 0.08% or higher — the standard per se limit for drivers 21 and over. This threshold is used nationwide, not unique to Kansas.
• 0.04% or higher — the limit for drivers operating a commercial motor vehicle (CDL holders), consistent with federal commercial-driving standards.
• 0.02% to under 0.08% — Kansas has a separate under-21 law, K.S.A. 8-1567a, that makes it unlawful for a driver under 21 to operate a vehicle with a BAC of 0.02% or more (but under 0.08%). This is Kansas's "zero tolerance" style provision for minors; a violation is handled through driver's-license (administrative) penalties rather than as a standard criminal DUI charge.
• 0.15% or higher — Kansas treats this as an aggravated/high-BAC case. At this level a test failure carries a longer mandatory license suspension and ignition-interlock period than a standard first offense (see below).

These numbers can change with legislative amendments. Confirm current figures against the official Kansas Statutes before relying on them for a legal decision.

Implied Consent and Refusing a Chemical Test

By driving in Kansas, you've legally agreed to submit to a breath, blood, or urine test if an officer has reasonable grounds to believe you were driving under the influence — this is "implied consent" under K.S.A. 8-1001. Refusing that test is not a way to avoid consequences:

• A first refusal triggers a one-year license suspension, followed by a mandatory two-year ignition interlock device (IID) restriction period — longer than the suspension/restriction for simply failing a first test.
• Refusal penalties escalate further for repeat refusals, up to a ten-year IID restriction for a fifth or subsequent refusal.
• Your refusal itself can be introduced as evidence against you in a criminal DUI prosecution.
• The refusal suspension is an administrative penalty, separate from and in addition to any criminal DUI penalties if you're also convicted.

Administrative License Suspension: The Deadline That Matters Most

This is the single most time-critical fact in this guide. When you fail or refuse a chemical test, the officer typically serves you with a notice of suspension (often a form labeled DC-27) on the spot, and your license may be suspended automatically after a short grace period unless you act. To contest that suspension, you (or your attorney) must submit a written request for an administrative hearing to the Kansas Department of Revenue, Division of Vehicles within 14 calendar days of the date you were served the notice. The request must be timely — and any required hearing fee submitted — or the suspension proceeds without a hearing.

This administrative process is entirely separate from your criminal case. You can win the administrative hearing and still face criminal DUI charges, or vice versa. Do not assume your defense attorney in the criminal case will automatically handle this deadline — confirm it's being calendared immediately after arrest. Contact information for the Division's administrative hearings is available on the Kansas Department of Revenue's website.

First-Offense Penalties

A first DUI conviction in Kansas is a class B nonperson misdemeanor. Based on the current statute:

• Jail: not less than 48 consecutive hours, up to 6 months (the statute allows 100 hours of public service as an alternative in some cases).
• Fine: a statutory range of not less than $750 and not more than $1,000, before court costs and fees, which can add substantially to the total.
• License suspension: a 30-day suspension, followed by a restriction period requiring an ignition interlock device — currently around 180 days for a standard first offense. If the BAC was 0.15% or higher, a test failure instead carries a one-year suspension followed by a one-year IID restriction.
• Ignition interlock device (IID): yes — Kansas requires an IID as part of the restricted-license period even for a first offense, not just for repeat offenders.

Exact fines, fees, and program costs change and vary by court. Confirm current amounts with the Kansas Statutes or a Kansas-licensed defense attorney before assuming any specific dollar figure.

Lookback Period

Kansas uses a 10-year lookback when deciding whether a third DUI is charged as a felony. A prior conviction counts toward that enhancement if it occurred within the preceding 10 years (time spent incarcerated is generally excluded from that count). Note that for the general task of counting how many prior offenses you have, Kansas courts can look at convictions across your lifetime (those on or after July 1, 2001, must be counted) — so don't assume an old conviction is irrelevant to your case.

Felony DUI in Kansas

A DUI becomes a felony in Kansas primarily through repeat offenses:

• A third DUI conviction is a felony (severity level 6, nonperson felony) if at least one prior conviction occurred within the preceding 10 years. If all priors are older than that, a third conviction can instead be charged as a class A nonperson misdemeanor.
• A fourth or subsequent DUI conviction is a severity level 6 nonperson felony regardless of how long ago the prior convictions occurred.

Separately, causing serious injury or death while driving under the influence can be charged under different, more serious Kansas statutes (such as vehicular battery or vehicular homicide provisions), independent of the DUI repeat-offense rules above. If a crash involved injury or a child passenger, get a Kansas-licensed criminal defense attorney involved immediately — these cases carry exposure well beyond a standard DUI.

What to Do After a DUI Arrest in Kansas

1. Read every document you were given at the time of arrest. Look for the date of service and any deadline noted on the notice of suspension.
2. Calendar the 14-day administrative hearing deadline immediately. This is separate from your criminal court date and moves on its own, much faster, clock. If you want to keep driving privileges while the case is pending, this is the deadline that protects that option.
3. Contact the Kansas Department of Revenue, Division of Vehicles (or have your attorney do so) to submit the written hearing request and any required fee before the deadline passes.
4. Talk to a Kansas-licensed criminal defense attorney as soon as possible, ideally before your first court date, so they can address both the administrative suspension and the criminal charge together.
5. Do not discuss the details of the stop or testing with anyone except your attorney. Anything you say to police, insurers, or acquaintances can potentially be used later.
6. Ask about ignition interlock program requirements and providers early if a restricted license is likely, so you're not scrambling to arrange it once a suspension period begins.
7. Keep copies of every document — the notice of suspension, citation, any court paperwork, and confirmation of your hearing request — in one place.

This article is general legal information about Kansas law, not legal advice for your specific situation; consult a Kansas-licensed attorney about your case.