North Dakota permit test: alcohol & drugs
BAC limits, implied consent, penalties, open containers and impairment. 8 questions.
At what alcohol concentration is a driver 21 or older considered legally under the influence in North Dakota?
Keyboard: press 1–4 or A–D to answer, Enter for the next question, S to save, R to read aloud, P to pause reading, L to listen and answer.
Sample alcohol & drugs questions
At what alcohol concentration is a driver 21 or older considered legally under the influence in North Dakota?
- A 0.05% or more
- B 0.08% or more
- C 0.10% or more
- D 0.02% or more
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B. 0.08% or more
Drivers 21 and older are legally under the influence at 0.08% alcohol concentration or more. Impairment begins well below that, so the safest choice is not to drink before driving.
Source: North Dakota Noncommercial Driver License Manual (Class D), 2025-2027, page 40
A 19-year-old driver is tested after a traffic stop. At what alcohol concentration is that driver considered legally under the influence?
- A 0.04% or more
- B 0.08% or more
- C 0.10% or more
- D 0.02% or more
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D. 0.02% or more
Drivers under 21 are considered legally under the influence at 0.02% or more. It is already illegal for them to possess or drink alcohol, so the limit is set close to zero.
Source: North Dakota Noncommercial Driver License Manual (Class D), 2025-2027, page 40
Under North Dakota's implied consent law, what happens if you refuse a chemical test for alcohol?
- A Your license is revoked for 180 days to three years
- B You receive a warning and a fine only
- C Your license is suspended for 30 days, then returned automatically
- D Nothing, because the test is voluntary
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A. Your license is revoked for 180 days to three years
When you accept a North Dakota license, you consent to a chemical test of blood, breath, urine or saliva. Refusing it, or a roadside preliminary breath test, leads to revocation for 180 days to three years.
Source: North Dakota Noncommercial Driver License Manual (Class D), 2025-2027, page 40
A driver over 21 has a first offense in seven years with an alcohol concentration of 0.09%. How long will the license be suspended?
- A 91 days
- B 180 days
- C 30 days
- D 365 days
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A. 91 days
A first offense in seven years with an AC of 0.08% or more brings a 91-day suspension. The period jumps to 180 days if the AC is 0.18 or greater.
Source: North Dakota Noncommercial Driver License Manual (Class D), 2025-2027, page 40