Oklahoma DUI Laws

Updated: Mar 10, 2026

You’ve received a DUI in the State of Oklahoma. While the situation can be stressful, understanding the law and what to expect can help you take the right next steps.

Below is an overview of Oklahoma DUI laws, potential penalties, and the process for restoring your driving privileges.

The Law

Under Oklahoma law, it is illegal to operate or be in actual physical control of a motor vehicle while under the influence of alcohol, drugs, or other intoxicating substances.

A person may be charged with DUI if:

  • Their blood alcohol concentration (BAC) is 0.08% or higher, or
  • They are impaired by alcohol, drugs (including prescription medications), or a combination of substances

For drivers under 21, Oklahoma enforces a “zero tolerance” law, meaning any measurable amount of alcohol (typically 0.02% BAC or higher) can result in penalties.

The Penalties

Penalties for DUI in Oklahoma vary based on prior offenses, BAC level, and other circumstances, but may include:

  • Jail time: A first offense can carry a minimum of 10 days up to 1 year in jail
  • Fines: Up to $1,000, plus court costs and fees
  • License suspension or revocation: Length depends on the offense and history
  • Ignition interlock device: May be required for certain offenders
  • Substance abuse assessment: Completion of an ADSAC assessment and any recommended services

Repeat offenses, high BAC levels, or aggravating factors can result in significantly increased penalties.

The ADSAC Requirement

If your license has been suspended or revoked due to an alcohol- or drug-related offense, Oklahoma law requires you to complete an ADSAC (Alcohol and Drug Substance Abuse Course) assessment through a certified provider approved by the Oklahoma Department of Mental Health and Substance Abuse Services (ODMHSAS).

The ADSAC assessment is a formal evaluation that reviews your substance use history and the circumstances of your offense. Based on the results, you will receive written recommendations for required services.

These recommendations may include:

You must complete all recommended requirements before you are eligible for driver’s license reinstatement through Service Oklahoma.

License Reinstatement Process

After completing your ADSAC requirements, you will receive documentation (often referred to as a “completion certificate” or “red stamp”) verifying that you have fulfilled your obligations.

You may also need to:

  • Pay reinstatement fees
  • Provide proof of insurance, including SR-22 certification if required
  • Meet any additional conditions set by Service Oklahoma

Because requirements can vary, it is important to follow the instructions provided by your assessor and confirm your next steps directly with Service Oklahoma.

Additional Considerations

DUI cases in Oklahoma can involve both criminal court proceedings and administrative actions related to your driver’s license. Timelines and requirements may differ depending on your case, so staying organized and informed is important.

If you have questions about your specific situation, consider contacting your attorney, ADSAC assessor, or Service Oklahoma for guidance.

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