Topic 6 · Alcohol, Drugs, and Driving (DUI Laws)
What is the legal BAC limit for most drivers 21 and older in California?
- 0.01%
- 0.08% — correct answer
- 0.04%
Why
0.08% for drivers 21 and over. Note you can still be convicted below it if you are impaired. (Handbook, Section 9 — BAC Limits.)
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.
More from Alcohol, Drugs, and Driving (DUI Laws)
- If you are under 21 and possess alcohol in a car (without a parent/guardian), what is a possible penalty?
- If you combine a low BAC with impairing drugs, can you still be charged with DUI?
- A Drug Recognition Expert (DRE) officer may be called when:
- Driving a passenger for hire, the BAC limit that applies is:
- What is true if you are a minor and use a fake ID to enter a bar?
- After a DUI arrest, the officer may take your license and give you: