Johnson County Courthouse — Iowa City
417 S Clinton St, Iowa City. Whether the arrest happened in Coralville, North Liberty, or Iowa City, OWI cases are heard at the Johnson County Courthouse. Iowa OWI is a state offense, not a city one.
What is OWI in Iowa?
Iowa's drunk-driving statute is Iowa Code 321J.2. The legal term is Operating While Intoxicated (OWI) — not DUI or DWI. You commit OWI in Iowa if you operate a motor vehicle while:
- Under the influence of alcohol or drugs, or
- Your BAC is 0.08% or higher (per se), or
- Any amount of a controlled substance is in your body
BAC limits
- General drivers: 0.08%
- Commercial drivers (CDL): 0.04%
- Under 21 (zero tolerance): 0.02%
Iowa OWI penalties by offense level
First offense — serious misdemeanor
| Penalty | Range |
|---|---|
| Jail | 48 hours – 1 year |
| Fine | $1,250 minimum |
| License revocation | 180 days |
| Mandatory substance evaluation | Yes |
| Drinking driver course | Required |
| Ignition interlock | Often required for temporary restricted license |
Second offense — aggravated misdemeanor
| Penalty | Range |
|---|---|
| Jail | 7 days – 2 years (7 days minimum mandatory) |
| Fine | $1,875 – $6,250 |
| License revocation | 2 years |
| Vehicle seizure | Possible |
| Ignition interlock | Required for any reinstatement |
Third offense — Class D felony
| Penalty | Range |
|---|---|
| Prison | Up to 5 years (30 days minimum mandatory) |
| Fine | $3,125 – $9,375 |
| License revocation | 6 years |
| Felony record | Permanent |
The "high BAC" enhancement (.15 or higher)
If your BAC at the time of testing was 0.15% or greater, you face enhanced penalties and are not eligible for a deferred judgment. The court must impose at least 7 days in jail for a first offense (rather than 48 hours). Many Iowa OWI defenses center on challenging whether the .15+ result was properly obtained.
Deferred judgment — keeping it off your record
For a first-offense OWI under 0.15% BAC, Iowa allows a deferred judgment if the judge agrees. You plead guilty, the court withholds entry of judgment, you complete probation, and at the end the case is dismissed — no conviction on your permanent record (though some agencies, including the FAA and military, can still see it).
Deferred judgment is not available if:
- Your BAC was 0.15% or higher
- You have any prior OWI within 12 years
- You caused injury or death
- You refused chemical testing under specific conditions
The ALR hearing — your license, separately
When you're arrested for OWI, the officer takes your physical license and issues a paper temporary license valid for 10 days. The Administrative License Revocation (ALR) proceeding is separate from the criminal case — even if your criminal charge is later dismissed, the license revocation can stand on its own.
The 10-day rule (don't miss this)
You have 10 days from the date of arrest to request an administrative hearing to contest the license revocation. If you miss the 10-day window, you lose your right to challenge the revocation. Request the hearing in writing through the Iowa DOT.
Temporary Restricted License (work permit)
After a portion of the revocation period (usually 30 days for first-offense OWI), you can apply for a Temporary Restricted License (TRL) that lets you drive for work, school, medical care, and substance-abuse treatment. Most TRLs require ignition interlock for the duration.
Implied consent & chemical test refusal
By driving in Iowa, you've impliedly consented to a breath, blood, or urine test if a peace officer has reasonable grounds to believe you're impaired. Refusing the test triggers its own revocation:
- First refusal: 1 year revocation
- Second refusal: 2 year revocation
Refusal can be used against you at the criminal trial. But it also denies the prosecution a BAC number, which can complicate their case. Whether to refuse is a judgment call best made before you're ever pulled over — there is no right answer that applies to everyone.
Common Iowa OWI defenses
- Bad stop. Did the officer have reasonable suspicion to pull you over? If not, the entire case can be suppressed.
- Bad arrest. Did the officer have probable cause to arrest? Field sobriety test scoring is challengeable.
- Bad breath test. Was the DataMaster device properly calibrated? Was the 15-minute observation period actually observed?
- Rising BAC. If you were tested an hour after driving, your BAC at the wheel may have been lower than the reading.
- Medical condition or medication. Some conditions and medications affect breath test results.
- Improperly administered Miranda warnings.
Choosing a Coralville OWI lawyer
OWI defense is a niche. Look for someone who:
- Handles OWI as a meaningful part of their practice (not as a sideline)
- Has tried OWI cases — not just plea-bargained them
- Understands DataMaster instrumentation and field sobriety testing
- Knows the Johnson County prosecutors and judges
- Has handled the ALR hearing process — not just the criminal side
- Is clear about flat fees vs. hourly billing
Most Coralville-area OWI lawyers offer a free initial consultation. Use it — bring everything you have, including the citation, complaint, and any test results.
FAQ — Iowa OWI
Is OWI the same as DUI?
Iowa's term is OWI — Operating While Intoxicated. Most states call it DUI or DWI. The substance is the same: driving while impaired.
Can I get a public defender for OWI?
Yes, if you qualify as indigent. Bring proof of income to your initial appearance.
How long does an OWI stay on my Iowa record?
An OWI conviction is permanent on your criminal record. A deferred judgment that's successfully completed can be expunged after eight years, leaving the case off most background checks.
Will I lose my CDL after an OWI?
A first OWI triggers a 1-year CDL disqualification (3 years if HAZMAT). A second OWI is a lifetime CDL ban (with possible reinstatement after 10 years in some cases).
Do I have to install ignition interlock?
For first-offense OWI, an interlock is generally required if you want a Temporary Restricted License during the revocation period. For second and subsequent offenses, interlock is required for any reinstatement.