Drinking alcohol affects your Blood Alcohol Concentration (BAC).
By DUI laws in California, it is illegal for any person to operate:
- A motor vehicle with a BAC of 0.08% or higher.
- Any vehicle requiring a commercial driver license (with or without a commercial driver license issued to the driver), with a BAC of 0.04% or higher.
- A motor vehicle with a BAC of 0.01% or higher, if the person is under age 21.
- A motor vehicle with a BAC of 0.01% or higher at any age if the person is on DUI probation.
See BAC Calculator to estimate the concentration of Alcohol in your blood based on how much you have been drinking.Print-Friendly Page