Arizona DUI Laws Explained
Arizona has some of the strictest DUI laws in the country: no plea-bargain shortcuts written into the law, mandatory jail floors, and an interlock on every alcohol conviction. Here is what the law says, what it costs, and how the system moves, without the legalese.
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What Counts as DUI in Arizona
Arizona's core DUI law, ARS § 28-1381, is broader than most people expect. You break it by driving, or being in actual physical control of a vehicle, in any of these conditions:
- Impaired to the slightest degree. No number required. If alcohol, drugs, or even prescription medication impaired you at all, the charge holds.
- A BAC of 0.08 or more within two hours of driving. This is the "per se" version: the number itself is the offense.
- Drugs in your system. Illegal drugs, certain prescription medication, and marijuana all count, and the law reaches metabolites, not only active impairment. That fight matters, more on it below.
"Actual physical control" is the trap nobody sees coming: people get charged while sleeping in a parked car with the keys nearby. Whether you were in control is genuinely arguable, and it's one of the first things we examine.
Arizona's DUI Tiers
The level drives everything: the jail floor, the fines, the interlock period, and whether you face a misdemeanor or a felony.
Regular DUI
Impaired to the slightest degree, 0.08+, or drugs. The baseline charge.
Class 1 MisdemeanorExtreme DUI
BAC 0.15 to 0.199. Jail floor jumps to 30 consecutive days, no probation until the sentence is served.
30-Day MinimumSuper Extreme DUI
BAC 0.20 or more. A 45-day floor, higher fines, longer interlock.
45-Day MinimumAggravated DUI
DUI on a suspended license, a third DUI within 84 months, a child under 15 aboard, wrong-way driving, or DUI while interlock-required.
FelonyUnder-21 "Baby DUI"
Under 21 with ANY alcohol in your body while driving or in physical control. Zero tolerance, no 0.08 required, and a young record on the line.
Class 1 MisdemeanorWhat a First Offense Actually Costs
These are the floors Arizona law sets, before any defense work moves them:
First Regular DUI
- 10 consecutive days in jail as the starting point, 9 suspendable when you complete alcohol screening and classes
- Fines, assessments, and jail costs commonly totaling about $2,200
- Ignition interlock device, typically 12 months
- A license suspension at the MVD, with a restricted-permit path back to driving
Extreme and Beyond
- Extreme: 30 consecutive days minimum, probation only after the full sentence
- Super extreme: 45 consecutive days minimum
- Aggravated: a felony with at least 4 months in prison for the suspended-license and third-offense versions
- Gun rights are lost with FELONY aggravated DUI only, not the misdemeanor tiers
Floors are starting points, not endings. Cases get reduced, sometimes to reckless driving under ARS § 28-693, and the difference between tiers is worth more than anything else in the case. That fight lives on our Arizona DUI defense page.
Two Judges Decide Every Arizona DUI
The criminal charge goes in front of a judge in court, over months. Your driver license goes in front of a SECOND judge at the MVD, on a clock measured in days. The MVD case runs whether or not you do anything, and public defenders do not handle it. If nobody demands the MVD hearing in time, your license takes the hit by default.
Refusing the post-arrest test has its own price: a first refusal triggers a 12-month license suspension on the MVD side, separate from anything the criminal court does.
This two-track structure is why DUI defense is built the way it is: one fight for your record, one fight for your license, and deadlines that punish waiting. We handle the MVD hearing in-house at no extra charge, and winning it often saves around $3,000 in SR-22 insurance costs.
Drug DUIs Run on Chemistry, and Chemistry Is Arguable
Arizona charges DUI for drugs the same as alcohol, including legally prescribed medication and marijuana. But there's a catch in the science: the standard lab work often proves presence, not impairment. Marijuana metabolites sit in your blood for weeks after any effect is gone.
That gap is defense territory. We push for quantification, challenge presence-only lab results, and send blood samples for independent retesting rather than taking the lab's word. Prescription cases have their own defense: a valid prescription, taken as directed, changes the legal picture.
Facing a marijuana or prescription DUI? Those cases are more winnable than most people are told. Start with a free consultation.
What Actually Happens After a DUI Arrest
- The arrest and release. Most first-time DUI arrests end with a release the same night and paperwork that starts two clocks: your court date and the MVD deadline.
- The MVD window. The license fight has to be demanded in days, not weeks. This is the most commonly missed deadline in Arizona DUI.
- Arraignment. Your first court appearance, where the plea starts as not guilty and the real work begins.
- Pretrial. Evidence gets exchanged and challenged: the stop, the roadside tests, the machine's calibration records, the blood work. Most cases are won, reduced, or shaped here.
- Resolution. Dismissal, reduction, plea, or trial. The tier you end at, not the tier you started at, decides what you actually serve and pay.
City by city, the courtroom differs: see where cases go in Mesa, Phoenix, and the rest of the Valley from our city pages, and grab the free Arizona DUI Survival Guide.
Arizona DUI Law, Answered Straight
Is a DUI a felony in Arizona?
Usually no. Regular, extreme, and super extreme DUIs are class 1 misdemeanors, brutal ones, but misdemeanors. It becomes felony aggravated DUI with specific triggers: a suspended license, a third DUI within 84 months, a child under 15 in the car, wrong-way driving, or driving while interlock-required. See our full aggravated DUI guide.
Will I go to jail for a first DUI in Arizona?
The law sets 10 consecutive days with 9 suspendable after alcohol screening and classes, so the best case is one day served. Treat that as the starting point: some offers open higher or add house arrest. Extreme DUI changes everything, 30 or 45 consecutive days minimum with no probation until served. See our full guides to extreme DUI and super extreme DUI.
What are the penalties for a first DUI in Arizona?
A first regular DUI is a class 1 misdemeanor. The law sets a floor of 10 consecutive days in jail, with 9 suspendable after you complete alcohol screening and classes, fines and assessments commonly totaling around $2,200, a 90-day license suspension, and a certified ignition interlock for about 12 months. Those are starting points, and most of our work goes into pulling them down.
How much does a DUI cost in Arizona?
More than the fine. Beyond court fines and assessments (often around $2,200), plan for jail fees, alcohol screening and classes, the ignition interlock lease, and higher insurance with an SR-22 filing. The all-in cost of a first DUI usually runs well past the fine itself, which is why a reduction or dismissal is worth fighting for.
Can I get a DUI while parked or sleeping in my car?
Yes. Arizona's law covers "actual physical control," not only driving, and people get charged asleep in parking lots with the keys nearby. It's also one of the more defensible versions of the charge, because whether you were actually in control is a real legal argument.
Should I refuse the breath or blood test?
No. Our legal advice, in every situation: if the police ask for your blood after an arrest, give it. Refusing accomplishes nothing, they get a warrant in about 15 minutes and are allowed to hold you down and draw it anyway, and the refusal itself triggers a 12-month license suspension at the MVD on top of everything else. Complying saves you from that suspension. Where the sample gets fought is in the lab work afterward, and that's our job.
What is the "baby DUI" for drivers under 21?
Arizona has a zero-tolerance law for drivers under 21: ANY alcohol in your body while driving, or while in physical control of the car, is a class 1 misdemeanor under ARS § 4-244(34). No 0.08 needed, no impairment needed. These cases put a young record and a young license on the line, which is exactly why they're worth fighting properly.
Can I get a DUI for marijuana with a valid card?
Yes, Arizona charges marijuana DUIs regardless of card status. But metabolites prove use, not impairment, and impairment is what matters. Quantification and independent lab work make these cases more winnable than most people are told.
How long does a DUI stay on my record?
A conviction stays unless you act to clear it. Arizona allows many convictions to be set aside, and some records to be sealed, once your case fully ends. Our record-removal division, AZ Record Removal, handles exactly that.
Do I actually need a lawyer for a DUI?
The honest answer: the law's floors are mandatory, the MVD deadline is unforgiving, and public defenders don't touch the license side. What a private lawyer changes is the tier, the evidence fight, and the license outcome, the three things that decide what you actually serve, pay, and carry on your record. Consultations are free: start here.
Charged? The Law Is the Map. The Fight Is Ours.
You now know more about Arizona DUI law than most people ever will. If you're facing a charge, the next step is a free, confidential consultation with the team built for exactly this.