California Car / Permit practice question · Alcohol & Drugs

A driver transporting a passenger for hire, such as a rideshare or taxi passenger, may not drive with a BAC at or above:

Answer choices

• 0.04%— Correct answer
• 0.01%
• 0.08%
• 0.10%

Why this is the answer

If you are driving a passenger for hire, such as a taxi or rideshare passenger, it is illegal to drive with a BAC of 0.04% or higher. This is the same limit that applies when you drive a vehicle that needs a commercial license. The ordinary 0.08% limit is for other adults over 21, and 0.01% for drivers under 21.

Source: California Driver Handbook — BAC Limits

Content reviewed against official driver handbooks · August 12, 2026