Arizona DWI & DUI Laws
BAC limits, penalties, license suspension periods, and ignition interlock requirements for Arizona drivers.
State Guide
Arizona DUI Laws at a Glance
Arizona's statutory term for impaired driving is DUI, with 0.08% as the standard illegal BAC threshold. Everything downstream of an arrest, suspension periods, interlock rules, lookback windows, is governed by Arizona-specific law, not a uniform national standard.
| Detail | Arizona Rule | Notes |
|---|---|---|
| Statutory Term | DUI | The specific offense name and code section vary by state |
| Standard BAC Limit | 0.08% | The standard threshold used in nearly every state |
| First-Offense License Suspension | 3 months | Administrative and criminal suspensions can run separately; actual length depends on case specifics |
| Ignition Interlock Device | Required | Required for all offenders, including first-time convictions |
| Lookback Period | 7 years | How many years a prior offense counts toward a repeat charge |
How BAC Testing and Implied Consent Work
Like every state, Arizona relies on implied consent: operating a vehicle on public roads means you've consented to BAC testing if lawfully arrested for suspected impairment. Refusing that test comes with its own separate consequence, usually an automatic license suspension, regardless of how the DUI charge itself is resolved.
License Suspension: Two Separate Tracks
Arizona, like many states, separates the administrative side (a motor vehicle agency suspension that can start almost immediately after arrest) from the criminal case working through court. The administrative and first-offense suspension period in Arizona is 3 months.
Common Questions
Frequently Asked Questions: DUI in Arizona
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What is the BAC limit in Arizona?Arizona's standard illegal BAC threshold is 0.08%. This matches the standard used in nearly every U.S. state. Commercial drivers and drivers under 21 face lower thresholds in every state, including Arizona.
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How long is a license suspended for a first DUI offense in Arizona?Arizona's first-offense suspension period is generally 3 months. This can involve both an administrative suspension (handled by the state's motor vehicle agency, often starting soon after arrest) and consequences tied to the criminal case itself, which can run on a different timeline.
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Does Arizona require an ignition interlock device?In Arizona, an ignition interlock device is required for all offenders, including first-time convictions. Requirements can also depend on whether a high BAC was involved or whether it's a repeat offense.
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What does "DUI" mean in Arizona?DUI is Arizona's statutory term for operating a vehicle while impaired by alcohol or drugs above the legal threshold. Different states use different terms (DUI, DWI, OWI, OUI, OVI, and others) for what is fundamentally the same category of offense, though the exact legal definitions and penalty structures differ by state.
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What happens if I refuse a BAC test in Arizona?Like every state, Arizona has an implied consent law: refusing a lawfully requested BAC test after a DUI arrest triggers its own penalty, typically an automatic license suspension, separate from and in addition to any penalty from the underlying charge itself.
Sources & References
- National Highway Traffic Safety Administration, Drunk Driving official program overview
- Insurance Institute for Highway Safety, Alcohol Interlock Laws by State
- Arizona BAC limit, suspension period, and interlock requirement figures compiled from published state-by-state legal reference tables; confirm current figures against official AZ state code before relying on them
- Governors Highway Safety Association, Alcohol-Impaired Driving State Laws