What Is OWI in Wisconsin?
Wisconsin uses the term “Operating While Intoxicated” (OWI) rather than DUI or DWI. Under Wisconsin Statute § 346.63, it is unlawful to operate a motor vehicle while under the influence of an intoxicant or with a prohibited alcohol concentration (PAC) in your system. The word “operating” is broader than “driving” — sitting in a parked car with the engine running can qualify.
Wisconsin also charges OWI for operating under the influence of controlled substances, prescription drugs that impair driving ability, or any combination of alcohol and drugs. The standard BAC threshold is 0.08%, reduced to 0.04% for commercial vehicle operators and 0.02% for drivers under 21.
First Offense OWI Penalties in Wisconsin
A first-offense OWI is a civil forfeiture in Wisconsin, not a criminal conviction — but do not let that fool you into thinking the consequences are minor. The statutory penalties include:
- Fine: $150–$300 (plus surcharges that typically push the total to $800–$1,000+)
- License Revocation: 6–9 months
- Alcohol Assessment: Mandatory assessment and potential treatment program
- Ignition Interlock: Required if BAC was 0.15% or higher
- SR-22 Insurance: High-risk insurance filing required for three years
If a passenger under 16 was in the vehicle, the offense becomes a criminal charge even on a first offense, and penalties escalate substantially.
Second Offense OWI Penalties in Wisconsin
A second OWI offense in Wisconsin is a criminal misdemeanor. The look-back period for prior OWI convictions has been eliminated in Wisconsin — any prior OWI on your record, no matter how old, counts as a prior offense. Penalties include:
- Jail: Mandatory 5 days to 6 months (alternative sentencing may be available in some counties)
- Fine: $350–$1,100 plus surcharges
- License Revocation: 12–18 months
- Ignition Interlock: Mandatory for all vehicles you operate, typically for 1 year after license reinstatement
- Alcohol Treatment: Mandatory assessment and recommended treatment
Third and Subsequent OWI Offenses
Third and fourth offenses are Class H or G felonies in Wisconsin. A third offense carries 45 days to 1 year in jail, fines of $600–$2,000, and license revocation of 2–3 years. A fourth offense can result in up to 6 years in state prison, fines up to $10,000, and lifetime revocation of operating privileges in the most serious cases.
Fifth and sixth offenses are Class G felonies with up to 10 years in prison. A seventh or subsequent offense is a Class F felony carrying up to 12.5 years of incarceration. At these levels, you are facing a permanent impact on your ability to work, vote, own firearms, and more.
BAC Thresholds and Ignition Interlock Requirements
Wisconsin’s standard legal limit is 0.08% BAC for drivers over 21 in a personal vehicle. At 0.15% BAC or higher, a first-offense OWI triggers enhanced penalties, including mandatory ignition interlock device (IID) installation and a higher minimum fine.
An IID is a breath-testing device wired into your vehicle’s ignition. You must provide a clean breath sample before the car will start, and random rolling re-tests are required while driving. IID vendors charge monthly lease and monitoring fees — typically $80–$130 per month per vehicle — making this a significant ongoing financial burden.
Tampering with, bypassing, or having someone else blow into an IID is a separate criminal offense in Wisconsin and will extend your IID requirement.
How an OWI Conviction Affects Employment
Even a first-offense OWI — technically a civil forfeiture — can appear on background checks and damage professional licensing applications. If your job requires driving a company vehicle, your employer may terminate you upon learning of the conviction.
For commercial driver’s license (CDL) holders, an OWI in any vehicle — not just a commercial vehicle — triggers automatic CDL disqualification for at least one year. A second offense results in lifetime disqualification. This effectively ends careers in trucking, bus driving, and other commercial transportation fields.
Certain professional licenses — nursing, law, teaching, and others — require reporting criminal convictions. A felony OWI can jeopardize these licenses entirely.
How to Fight an OWI Charge in Wisconsin
OWI defense is a specialized area of law. The best defenses challenge the traffic stop itself (was there reasonable suspicion?), the field sobriety tests (were they administered correctly?), and the chemical test results (was the breathalyzer properly calibrated and maintained?). Blood test results can also be challenged on chain-of-custody and laboratory procedure grounds.
Attorney Katz handles drunk driving defense throughout Wisconsin. He scrutinizes every aspect of the arrest — from the initial traffic stop to the chemical test procedures — to build the strongest possible defense for each client.
Do not face an OWI charge without legal counsel. Submit your case information or contact our office immediately.