NORML: Study: Traffic Fatalities Have Not Increased As A Consequence Of Legalization

Eugene, OR: The enactment of adult use marijuana regulations in Colorado and Washington is not independently linked to an increase in traffic fatalities, according to a study published by the National Bureau of Economic Research.

Investigators at the University of Oregon compared traffic accident outcomes in Colorado and Washington following legalization to those in other states with similar pre-legalization economic and traffic trends. They reported, "We find that states that legalized marijuana have not experienced significantly different rates of marijuana- or alcohol-related traffic fatalities relative to their synthetic controls."

Authors concluded, "In summary, the similar trajectory of traffic fatalities in Washington and Colorado relative to their synthetic control counterparts yield little evidence that the total rate of traffic fatalities has increased significantly as a consequence of recreational marijuana legalization."