DUI Laws in Oklahoma

0.08 or more blood or breath alcohol within two hours of arrest is DUI. Drivers under 21 can be charged with DUI for any measurable amount of alcohol. A separate 'driving while impaired' offense covers a concentration over 0.05 but under 0.08 when there is additional evidence of impairment or a traffic violation. A concentration of 0.15 or more is aggravated DUI.

A first DUI is a misdemeanor that can include jail time and fines. After a first-time DUI conviction, an ignition interlock device is required for 18 months. For DUI arrests on or after November 1, 2022, the driver must complete the Board of Tests' Impaired Driver Accountability Program (IDAP), which requires an ignition interlock, before a suspended license can be reinstated. For first-time DUI arrests on or after November 1, 2024, the arrest does not appear on the driving record if the driver held a valid license, enrolled in IDAP within 30 days of arrest, completed IDAP, and reinstated with Service Oklahoma.

According to the Oklahoma Highway Safety Office, a driver who fails or refuses a breath test faces license revocation; if a hearing challenge is unsuccessful, the license is suspended for at least six months. A person under 21 who refuses a test can be charged with a misdemeanor punishable by up to 10 days in jail and/or a $1,000 fine. Revocation orders are issued by Service Oklahoma based on the officer's impaired driving affidavit or a court conviction.

The Service Oklahoma driving record available to drivers shows up to 3 years of driving history. Since November 1, 2024, a first-time DUI arrest will not appear on the driving record if the driver held a valid license at the time of arrest, enrolls in the Impaired Driver Accountability Program (IDAP) within 30 days of the arrest, completes all IDAP requirements, and reinstates the license with Service Oklahoma.

A Modified Driver License allows restricted driving during the mandatory suspension or revocation period when the person has no other adequate means of transportation. It may be available (not guaranteed) for point suspensions, driving-while-impaired (under 0.08), a first drug suspension, a first suspension for eluding an officer, and DUI arrests before November 1, 2022 (with an interlock). It covers Class D vehicles only. For DUI arrests on or after November 1, 2022, reinstatement goes through IDAP instead.