Recreational marijuana became legal in the state of California on January 1, 2018—but “recreational use” does not include smoking it in the car. As the Mercury News points out, a new state law makes it officially illegal for drivers and passengers alike to smoke weed in vehicles—just one attempt to curb what officials fear will be an upsurge in drug-related DUI in the wake of legalized pot.
Some users might be tempted to view marijuana as a “grey area” drug when it comes to driving. After all, THC, the substance in weed that makes you high, is difficult to measure in the body, and in fact it can remain detectible in your blood stream for days after you use it, making it even more difficult to measure. However, make no mistake: Multiple studies have shown that marijuana use has a significant impact on people’s ability to drive safely, and that pot in your system increases your risk of getting into an accident. Furthermore, no matter how difficult it is to measure how much THC is in your system or when it got there, if an officer suspects you’re impaired while driving, he can arrest you based on that suspicion. In fact, as the law mentioned above states, you can be arrested for smoking it in a car even if you’re a passenger.