North Dakota DWI & DUI Laws
BAC limits, penalties, license suspension periods, and ignition interlock requirements for North Dakota drivers.
State Guide
North Dakota DUI Laws at a Glance
North Dakota'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 North Dakota-specific law, not a uniform national standard.
| Detail | North Dakota 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 | Not mandatory | Not mandatory statewide, though a court may still order one |
| Lookback Period | Not consistently published | Confirm the current lookback window against state code. This figure is not consistently published across states |
How BAC Testing and Implied Consent Work
Every state uses a breath, blood, or urine test to measure blood alcohol concentration, and every state has an "implied consent" law: by driving on public roads, you've already agreed to testing if lawfully arrested for suspected impairment. Refusing a test carries its own separate penalties, usually an automatic license suspension, regardless of whether you're ultimately convicted of DUI.
License Suspension: Two Separate Tracks
Many states run two separate proceedings after a DUI arrest: an administrative license suspension handled by the state's motor vehicle agency (which can take effect within days of arrest, independent of the criminal case) and the criminal case itself. North Dakota's first-offense suspension period is 3 months.
Common Questions
Frequently Asked Questions: DUI in North Dakota
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What is the BAC limit in North Dakota?North Dakota'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 North Dakota.
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How long is a license suspended for a first DUI offense in North Dakota?North Dakota'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 North Dakota require an ignition interlock device?In North Dakota, an ignition interlock device is not mandatory statewide, though a court may still order one. 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 North Dakota?DUI is North Dakota'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 North Dakota?Like every state, North Dakota 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
- North Dakota BAC limit, suspension period, and interlock requirement figures compiled from published state-by-state legal reference tables; confirm current figures against official ND state code before relying on them
- Governors Highway Safety Association, Alcohol-Impaired Driving State Laws