Is it legal for anyone to drink alcohol or smoke cannabis while being a passanger in the car?
In California, it is illegal to consume alcohol or cannabis in any vehicle, irrespective of whether the vehicle is parked or in motion. This prohibition is in place to prevent impaired operation of vehicles and to uphold the laws concerning substance consumption on public roadways and open areas accessible to the public.
See the exact questions that will be on the 2026 California DMV exam.
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