People in states where cannabis is legal are less likely to blaze before getting behind the wheel.
The results appear to contradict claims that decriminalizing weed will lead to upswings in impaired driving, a criticism sometimes voiced by anti-reform lawmakers. Researchers said the results suggest that states with legalized cannabis have done a better job educating residents about potential dangers of driving while impaired. Labeling requirements on legal cannabis also may help by providing warnings that deter people from getting behind the wheel.