Topic 6 · Alcohol, Drugs, and Driving (DUI Laws)
Driving under the influence of which substance can result in a DUI?
- Alcohol, drugs (legal or illegal), and certain medications — correct answer
- Only alcohol
- Only illegal drugs
Why
Alcohol, illegal drugs, cannabis, prescriptions and over-the-counter medicines can all support a DUI if they affect your ability to drive safely.
Practise this in the real format
Reading one answer is not the same as sitting the test. The simulator runs the first-time adult form: 36 questions, 6 mistakes allowed, 83% to pass.
Source: California Driver's Handbook (DL 600, rev. 6/2025), the document the DMV writes the real test from. Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.
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