Oklahoma has enacted one of the most significant overhauls of its DUI laws in decades. Senate Bill 54, which took effect on November 1, 2025, toughens penalties for DUIs, especially repeat offenders.
If you have a prior DUI on your record, the stakes for an arrest are now higher than ever.
Harsher Penalties for Repeat Offenders
Repeat DUIs were already felonies in Oklahoma. SB 54 escalates the consequences for subsequent offenses. Oklahoma law now imposes mandatory minimum jail time for aggravated DUIs that increase with each prior offense within the past 10 years. The new legislation removes court discretion for adjusting penalties and requires time behind bars for many repeat offenders.
Oklahoma’s DUI penalties now include:
- First offense (non-aggravated). A misdemeanor, punishable by 10 days to one year in jail and a fine of up to $1,000.
- First offense (aggravated). Under SB 54, a DUI involving an aggravating factor, such as a BAC of 0.15% or higher, a minor in the vehicle, a crash, fleeing police, or reckless driving, is now a felony, even with no prior record.
- Second offense within 10 years. A felony, punishable by one to five years in prison, a fine of up to $2,500, mandatory treatment, and an extended ignition interlock requirement.
- Third or subsequent offense. A felony, punishable by one to ten years in prison and a fine of up to $5,000, along with longer interlock and treatment requirements.
The law also makes treatment and rehabilitation a required part of sentencing. For repeat DUIs, participation in treatment or therapy is now mandatory. Additionally, a felony DUI conviction can cost you your right to vote while serving your sentence, your firearm rights, and your eligibility for many licensed professions.
The 10-Year Lookback and Prior Deferred Sentences
Oklahoma counts prior DUIs within a 10-year window when deciding how to charge a new offense. Importantly, a prior deferred sentence still counts as a prior offense, even though a completed deferred sentence is not technically a conviction. That means a driver who resolved an earlier DUI through a deferred sentence can still see a new arrest charged as a felony.
Expanded Aggravated DUI Means More Felonies
SB 54 widened the definition of an “aggravated” DUI. In the past, an aggravated DUI generally meant a blood alcohol concentration of 0.15% or higher. Now, aggravating factors also include having a minor in the vehicle, causing a crash, fleeing from police, excessive speeding, and other reckless conduct while impaired.
Under the new law, all aggravated DUIs are felonies, even first offenses. For a repeat offender, the combination of a prior record and an aggravating factor can lead to serious felony exposure and lengthy prison terms.
Fewer Ways to Avoid a Conviction
The new law also narrows the alternative sentencing options for DUI violations. SB 54 reduces eligibility for deferred sentences in aggravated cases and increases ignition interlock requirements for repeat offenders. For a second offense, offenders can face a year or more of required interlock use, with even longer periods for third and subsequent offenses.
How an Attorney Can Defend Charges Under the New Law
The new law made aggravating factors the dividing line between a misdemeanor and a felony, which also makes them the most important target for a defense. An experienced attorney can attack the case on several fronts:
- Challenging the aggravating factor that turns a misdemeanor into a felony
- Challenging the traffic stop if police lacked reasonable suspicion to stop you
- Questioning the chemical testing that led to the charge.
- Pursuing alternatives where eligible,
If you are facing a repeat or aggravated DUI in Oklahoma, contact an experienced Oklahoma DUI defense attorney immediately to protect your rights and your future. Fabian & Young provide confidential consultations.