First-Offense DUI Penalties in Arizona — What Judges Actually Impose in City & Justice Courts
In Arizona, a first-offense DUI under ARS § 28-1381 is a Class 1 misdemeanor with at least 10 days’ jail (9 may be suspended with screening), about $1,250 in fines/assessments, a 90-day license suspension, ignition interlock for up to 12 months, and probation; higher BACs under ARS § 28-1382 increase jail.
Arizona first-offense DUI penalties at a glance
Arizona is a mandatory-penalty state for DUI. For a first non-extreme DUI under ARS § 28-1381, courts must impose at least 10 consecutive days in jail, but they may suspend 9 days if you complete alcohol or drug screening and any recommended classes. Mandatory financial penalties total at least $1,250 (a $250 base fine plus $500 to the Prison Construction & Operations Fund and $500 to the Public Safety Equipment Fund), and additional surcharges and fees are typically added by the court.
Your license faces an MVD administrative 90-day suspension (often 30 days no driving and 60 days restricted) under ARS § 28-1385 if your BAC is 0.08 or higher or you test positive for certain drugs. If you refuse testing, the implied-consent suspension under ARS § 28-1321 is 12 months. Upon conviction, ignition interlock is usually required for up to 12 months under ARS § 28-3319, with possible reduction to 6 months for qualifying first-time, non-extreme cases after full compliance.
Jail increases substantially under ARS § 28-1382: 0.15–0.199 BAC (Extreme DUI) requires 30 consecutive days (often all but 9 may be suspended with interlock and screening), and 0.20+ BAC (Super Extreme DUI) requires 45 consecutive days (all but 14 may be suspended with interlock and screening). Probation for a Class 1 misdemeanor may run up to 5 years under ARS § 13-902.
Outcomes vary by facts, BAC level, and venue. In Maricopa County’s city and justice courts, many first-time defendants ultimately serve 1 day if they complete screening promptly and comply with treatment and interlock requirements. Some cases are defensible—especially those involving “actual physical control,” breath/blood testing issues, or medical explanations for observed impairment.
Key Arizona DUI laws, penalties, and court procedures
Arizona recognizes several first-offense DUI theories:
– ARS § 28-1381(A)(1): Driving or actual physical control while impaired to the slightest degree by alcohol, drugs, or a vapor-releasing substance. The “slightest degree” standard is strictly enforced.
– ARS § 28-1381(A)(2): BAC of 0.08 or more within two hours of driving/actual physical control (measured by breath or blood).
– ARS § 28-1381(A)(3): Any drug defined in ARS § 13-3401 or its impairing metabolite present within two hours. In State ex rel. Montgomery v. Harris, 234 Ariz. 343 (2014), the Arizona Supreme Court limited “metabolite” to impairing metabolites, excluding inactive THC metabolite (carboxy-THC).
– ARS § 28-1382(A): Enhanced BAC offenses (Extreme 0.15–0.199, Super Extreme 0.20+). These carry higher mandatory jail and assessments.
– Underage alcohol-and-driving (ARS § 4-244(34)): Any alcohol in the body for drivers under 21; penalties differ from standard DUI.
“Actual physical control” is frequently disputed. In State v. Love, 182 Ariz. 324 (1995), and later in State v. Zaragoza, 221 Ariz. 49 (2009), the Arizona Supreme Court directed juries to consider the totality of circumstances—vehicle location, engine status, driver position, intent to drive, and safety alternatives—rather than any single factor. That means a stationary, sleeping driver can still face DUI if the overall circumstances show a real danger of driving while impaired.
| Offense | Mandatory Jail (1st offense) | Mandatory Assessments & Fines | Class |
|---|---|---|---|
| Standard DUI (ARS § 28-1381) | 10 consecutive days; court may suspend 9 with screening/treatment | At least $1,250 total (including $500 PCOF + $500 PSEF + $250 fine), plus surcharges | Class 1 misdemeanor |
| Extreme DUI (0.15–0.199) (ARS § 28-1382) | 30 consecutive days; substantial suspension possible with interlock & screening | At least $2,500 total assessments/fines and surcharges | Class 1 misdemeanor |
| Super Extreme DUI (0.20+) (ARS § 28-1382) | 45 consecutive days; partial suspension possible with interlock & screening | Higher mandatory assessments/fines than Extreme, plus surcharges | Class 1 misdemeanor |
| Drug DUI (ARS § 28-1381(A)(3)) | Same minimums as Standard DUI | Same minimums as Standard DUI | Class 1 misdemeanor |
Other statutory consequences commonly imposed for a first conviction include:
– Interlock: ARS § 28-3319 generally requires ignition interlock for up to 12 months after a DUI conviction. For a qualifying first-time, non-extreme DUI with full compliance, ADOT may authorize removal after 6 months.
– Probation: Up to 5 years for Class 1 misdemeanors (ARS § 13-902(A)(5)). Conditions can include treatment, community restitution, and compliance monitoring.
– Fines: Class 1 misdemeanors can carry up to a $2,500 fine (ARS § 13-802), but DUI-specific minimum assessments apply regardless of discretionary fines.
Court procedures: Most first-offense DUI cases in the Phoenix metro area are filed in limited-jurisdiction courts (city courts like Phoenix Municipal Court, Tempe Municipal Court, Mesa Municipal Court, and Chandler Municipal Court, or Maricopa County justice courts). After arraignment, cases proceed to pretrial conferences, disclosure and motions (Arizona Rules of Criminal Procedure apply), possible evidentiary hearings (e.g., challenging probable cause, breath/blood reliability), and then trial if no resolution. DUI defendants have the right to a jury trial in these courts. Prosecutors include city prosecutors or the Maricopa County Attorney’s Office, depending on the venue.
Resolutions vary. Some first-time cases end in dismissal or acquittal where the state cannot meet its burden, such as when a stop was unlawful, testing was unreliable, or “actual physical control” is not proven under the totality standard. Others resolve by plea to a non-extreme DUI or, less commonly, to reckless driving under ARS § 28-693 when evidence issues exist. For anyone charged in Phoenix, Tempe, Mesa, or Chandler, consulting a DUI lawyer in Arizona early is critical to evaluate defenses, preserve video and test data, and contest administrative actions.
License suspensions, interlock & MVD hearings
Arizona uses a dual-track system: the criminal case in court and separate administrative action through the MVD/ADOT Executive Hearing Office.
– Admin per se (ARS § 28-1385): If your BAC is 0.08+ (0.04 for commercial drivers) or drugs are detected, MVD typically imposes a 90-day suspension. You have a short window—generally 15 days from service of notice—to request a hearing. If upheld, most drivers face 30 days with no driving followed by 60 days restricted to work/school/treatment.
– Implied consent (ARS § 28-1321): A test refusal triggers a 12-month suspension (24 months for a prior refusal within 84 months). The hearing focuses on reasonable grounds, lawful arrest, proper advisement, and refusal.
– Interlock (ARS § 28-3319): Upon conviction, interlock installation is required for up to 12 months. For a qualifying first-time, non-extreme DUI, you may be eligible for removal after 6 months if you have no interlock violations, complete screening/treatment, and otherwise comply.
Commercial drivers face added consequences: a first DUI can disqualify a CDL even if the DUI occurred in a personal vehicle. Out-of-state license holders should still expect Arizona to report actions to their home state.
How cases move through Phoenix, Tempe, Mesa & Chandler courts
In Maricopa County, first-offense DUI cases are commonly filed in:
– Phoenix Municipal Court (Phoenix)
– Tempe Municipal Court (Tempe)
– Mesa Municipal Court (Mesa)
– Chandler Municipal Court (Chandler)
– Various Justice Courts (e.g., Kyrene, University Lakes) for county-filed cases
Expect an arraignment with initial plea, pretrial conferences to discuss disclosure and negotiations, motion practice (suppression of statements, blood/breath challenges, and stop legality), and trial settings. Judges in these high-volume courts routinely suspend 9 of the 10 mandatory days for standard first-offense cases when defendants promptly complete screening and begin treatment. BAC level, collision involvement, and prior history (within 84 months) influence offers and judicial discretion on suspendable jail time.
Firm insight: Founder Derek Oliverson served as a police officer in Henderson, Nevada, then as a prosecutor in Mohave County, Arizona, before becoming a judge at Page Magistrate Court handling 3,000+ cases per year and later at Glendale City Court (2012, approximately 40,000+ cases per year). He left the bench in 2014 and founded Oliverson Law DUI & Criminal Defense in 2009. Attorney David Tangren is a University of Arizona Law graduate and former prosecutor with the Pima County Attorney’s Office. This background helps our team navigate the procedures and practices that shape DUI outcomes in these courts.
Call Oliverson Law DUI & Criminal Defense at (480) 582-3637. Since 2009, our Tempe office has guided clients through Maricopa County’s city & justice courts. Office: 60 E Rio Salado Pkwy, Suite 900, Tempe, AZ 85281. 4.9/5 rating (150+ reviews). Immediate consults available.
What to do next
Request your MVD hearing immediately
Arizona’s deadlines are short. If you received an admin per se or implied-consent notice, request a hearing within the stated window (often 15 days). Preserving driving privileges and discovery opportunities at the MVD can influence both your daily life and your court strategy.
Complete alcohol/drug screening early
Courts can suspend most of the mandatory jail for a first-offense DUI if you complete screening and begin treatment promptly. Early completion also helps with interlock reduction eligibility and shows the judge you’re taking compliance seriously.
Preserve and analyze evidence
Secure body-cam footage, dispatch logs, calibration records, blood chain-of-custody, and hospital or medical records. Many first-offense cases turn on breath/blood reliability, actual physical control, or the lawfulness of the stop. A focused review can reveal suppression issues or leverage for a better outcome.
Consult counsel familiar with local courts
Venue matters. Practices differ between Phoenix, Tempe, Mesa, Chandler, and the justice courts. An experienced attorney can contest MVD actions, challenge the state’s evidence, and pursue dismissals, trial, or negotiated resolutions. Start with a strategy session to match defenses to your facts.
Common mistakes to avoid
Talk with a DUI defense lawyer today
If you’re charged with a first-offense DUI in Maricopa County—including Phoenix, Tempe, Mesa, or Chandler—strategic action in the first two weeks often sets the tone for the entire case. Explore defenses, protect your license, and plan for interlock and compliance now.
Frequently Asked Questions
Under ARS § 28-1381, a first-offense DUI carries at least 10 consecutive days in jail, but courts may suspend 9 days if you complete alcohol/drug screening and comply with treatment. If your BAC is 0.15–0.199 (Extreme) or 0.20+ (Super Extreme) under ARS § 28-1382, mandatory jail increases to 30 or 45 days, with partial suspension possible.
No. A standard first-offense DUI in Arizona is typically a Class 1 misdemeanor under ARS § 28-1381. Aggravated DUI under ARS § 28-1383—such as DUI with a suspended license, a third DUI within 84 months, or DUI with a minor child in the vehicle—can be a felony, but those circumstances are not the ordinary first-offense case.
Usually, yes. An administrative 90-day suspension often starts under ARS § 28-1385 when BAC is 0.08+ or certain drugs are detected. If you refuse testing, ARS § 28-1321 imposes a 12-month implied-consent suspension. You can request an MVD hearing within a short deadline to contest the action. A conviction triggers ignition interlock requirements.
It depends on the evidence. Dismissals or reductions may occur where the stop lacked legal basis, breath/blood testing is unreliable, or “actual physical control” is not proven under State v. Love and State v. Zaragoza. Some cases resolve to non-extreme DUI or, less commonly, reckless driving when proof issues exist. Early defense investigation is vital.
(480) 582-3637 • 60 E Rio Salado Pkwy, Suite 900, Tempe, AZ 85281 • Since 2009 • 4.9/5 (150+ reviews). Learn how our experience as former police, prosecutors, and judges can inform the approach in your case.