(FOX 11) - Governor Jerry Brown has signed a bill that makes it illegal to smoke or consume marijuana while driving or riding inside a vehicle.
The move is in anticipation of state-licensed marijuana sales for recreational use.
That begins January first.
A study in 2012 found that more weekend nighttime drivers in California tested positive for marijuana than alcohol.
The governor vetoed another marijuana bill that would have barred packaging that could appeal to children, such as wrappers that make edibles look like candy.
Brown said his administration is already drafting rules to keep children away from marijuana.
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