Oklahoma DUI Laws: Penalties, BAC Limit & License (2026)

In Oklahoma the offense is called driving under the influence (DUI), and 47 O.S. 11-902 makes it unlawful to drive with a blood or breath alcohol concentration (BAC) of 0.08 percent or more. A standard first DUI is a misdemeanor punishable by 10 days to one year in jail and a fine of up to $1,000, but aggravating factors can make even a first offense a felony.

This guide is part of our DUI Laws by State series.

What counts as a DUI in Oklahoma

Oklahoma's core impaired-driving statute, 47 O.S. 11-902, makes it unlawful to be in actual physical control of a vehicle while under the influence of alcohol or other intoxicating substances. Subsection (A)(1) is the per se rule: a BAC of 0.08 percent or more by weight is unlawful, while subsection (A)(2) covers driving while actually impaired. A prosecutor can pursue either theory, so a driver under 0.08 can still be convicted on proof of impairment. A separate lesser offense, driving while impaired (DWI), also exists under 47 O.S. 761; under Oklahoma's BAC-evidence statute, 47 O.S. 756, a BAC between 0.05 and 0.08 is relevant evidence of impairment for a DWI charge without the automatic presumption that applies at 0.08 and above. Commercial drivers face a 0.04 percent limit, and drivers under 21 fall under Oklahoma's zero-tolerance law, which bars driving with any measurable amount of alcohol. The 0.08 figure is the federal benchmark adopted by every state except Utah, which uses 0.05 percent, as the National Highway Traffic Safety Administration describes.

First-offense DUI penalties in Oklahoma (jail, fines, license)

A standard first DUI is a misdemeanor under 47 O.S. 11-902(C)(1). The statute provides for a jail term of not less than 10 days nor more than one year and a fine of not more than $1,000, in addition to a required alcohol or drug assessment and any treatment the assessment recommends. Courts often grant a deferred or suspended sentence with probation in place of most jail time for a first offense, with conditions that can include a victim-impact panel, community service, and an ignition interlock device. The statute was amended in the 2025 and 2026 sessions, and as the current law stands a routine first DUI remains a misdemeanor while the aggravated tiers carry felony exposure. The driver also faces a separate administrative license revocation handled by Service Oklahoma, the agency that absorbed the driver-license functions of the Department of Public Safety.

Watch out: The Service Oklahoma administrative license revocation runs separately from the criminal case. You can resolve the criminal charge and still lose your license, and to contest the revocation you must file a petition in the district court within 30 days after Service Oklahoma mails the notice of revocation, under 47 O.S. 6-211(E).

Ignition interlock requirements in Oklahoma

Oklahoma leans heavily on ignition interlock devices to let drivers keep driving after a DUI. While a routine misdemeanor first offense does not always carry a hard interlock mandate from the start, an offender who wants to reinstate or obtain a modified driver license generally must install a certified IID for a set period. The device becomes mandatory for an aggravated first offense, including a BAC of 0.15 percent or more, and for second and later offenses, with longer terms as the offense level rises. The interlock requires a breath sample before the engine starts and at random intervals while driving, and it reports every reading. Drivers in the Impaired Driver Accountability Program can often replace part of a revocation with an interlock-restricted license.

License suspension and the administrative process in Oklahoma

Oklahoma runs two systems at once. The administrative license revocation is a civil action separate from the criminal case, governed by 47 O.S. 6-205.1 and the implied consent law in 47 O.S. 751. When a driver is arrested for DUI, the officer serves a written notice of revocation, and under 47 O.S. 753 and 754 the revocation becomes effective 45 days after that notice is given. Review is not an agency hearing. Under 47 O.S. 6-211 the driver appeals by filing a petition in the district court for the county where the arrest occurred, and the petition must be filed within 30 days after Service Oklahoma mails the notice. Under 47 O.S. 6-205.1 a first revocation runs at least 180 days on the same schedule whether the driver refused the test or failed it. A driver may often avoid a hard revocation by enrolling in the Impaired Driver Accountability Program with an interlock-restricted license. To reinstate, a driver must complete the revocation or program, pay the reinstatement fee, and may need to file proof of financial responsibility (an SR-22).

Repeat offenses and the Oklahoma look-back period

Oklahoma counts prior DUIs within a 10-year look-back window, and the jump to felony status comes quickly. Under 47 O.S. 11-902, a second DUI committed within 10 years of a prior conviction is a Class C2 felony under 47 O.S. 11-902(C)(2), punishable by up to seven years in the custody of the Department of Corrections with at least 20 percent of the sentence served under 21 O.S. 20M(B), plus a fine of up to $2,500, with longer terms for third and later offenses. The felony threshold is therefore the second offense within the look-back period, which is stricter than the third-offense felony rule used by many states. In addition, aggravated factors can make even a first offense a felony. DUI causing great bodily injury is a felony under 47 O.S. 11-904, and a DUI that causes death can be charged as first-degree manslaughter, regardless of offense number.

Watch out: Refusing the breath or blood test does not protect your license. A first refusal triggers an administrative revocation of at least 180 days, the same period 47 O.S. 6-205.1 sets for failing the test, and the refusal can be used against you in the criminal case.

Refusing a breath or blood test in Oklahoma

Oklahoma's implied consent law in 47 O.S. 751 provides that by driving in the state, you have agreed to submit to a chemical test of breath or blood if lawfully arrested for DUI. Under 47 O.S. 6-205.1, a first revocation within a 10-year window runs at least 180 days, a second runs at least one year, and a third or later runs at least two years. The same escalating schedule applies whether the driver refused the test under 47 O.S. 753 or failed it under 47 O.S. 754, so a refusal does not by itself carry a longer revocation than a failed test. These revocations are administrative and apply on top of any criminal penalties, a refusal can still be used against you in the criminal case, and officers can seek a warrant to draw blood in serious cases. The driver contests the revocation by filing a petition in the district court within 30 days after Service Oklahoma mails the notice, under 47 O.S. 6-211.

Can you expunge or seal a DUI in Oklahoma

Oklahoma does allow some DUI records to be expunged, which sets it apart from states that bar DUI sealing entirely. The most common path is a deferred sentence: when a first DUI is resolved with a deferred judgment and the person completes probation, the case is dismissed, and the court record can be sealed under 22 O.S. 991c. A broader full expungement under 22 O.S. 18 and 19 can also seal the arrest record held by the Oklahoma State Bureau of Investigation, generally available a set time after a misdemeanor deferred sentence is dismissed if the person has no prior convictions and no pending charges. A DUI that ends in a straight conviction is harder to clear and usually requires meeting longer waiting periods. A sealed DUI can still count as a prior for enhancement during the 10-year look-back.

What to do after a DUI arrest in Oklahoma

An Oklahoma DUI creates two separate matters: a criminal case in court and an administrative license case with Service Oklahoma. The deadlines are short, so a common first step is to file a petition in the district court within 30 days after Service Oklahoma mails the notice of revocation, because missing that window generally means the revocation takes effect on schedule, 45 days after the written notice. The criminal case proceeds on its own schedule from arraignment through resolution. General information cannot tell you how your case will come out, since the outcome depends on the specific facts, the evidence, and your record. Many people consult a licensed Oklahoma DUI attorney to understand the charge, the 30-day appeal deadline, and the options for both the criminal case and the license case. Keep the arrest paperwork, the notice of revocation, and any test results in a safe place.

More Oklahoma Laws

• Oklahoma Expungement Laws
• Oklahoma Warrant Search