California DUI Laws:

The California Vehicle Code defines what it means to drive under the influence of either drugs or alcohol. The code section is Vehicle Code 23152. The code is broken down into subsections (a) through (f), which describe the nature of the DUI.

DUI - bad driving : (a) It is unlawful for a person who is under the influence of an alcoholic beverage to drive a car, or truck, or motorcycle or even a lawn mower.

DUI - .08 alcohol level (b) It is unlawful for a person who has 0.08 percent or more, by weight, of alcohol in their blood to drive a vehicle. For a younger than 21 years of age, the legal limit is 0.01.

DUI - addict (c) It is unlawful for a person who is addicted to the use of any drug to drive a vehicle. This subdivision shall not apply to a person who is participating in an approved narcotic treatment program.

DUI - in commercial vehicle (d) It is unlawful for a person who has 0.04 percent or more, by weight, of alcohol in his or her blood to drive a commercial motor vehicle.

DUI - drugs (e) It is unlawful for a person who is under the influence of any drug to drive a vehicle.

DUI - drugs and alcohol (f) It is unlawful for a person who is under the combined influence of any alcoholic beverage and drug to drive a vehicle.