The Insurance Institute for Highway Safety and Highway Loss Data Institute conducted two studies which found an in increase in collision claims in four states following the start of the legalization of recreational marijuana. “Despite the difficulty of isolating the specific effects of marijuana impairment on crash risk, the evidence is growing that legalizing its use increases crashes,” IIHS-HLDI President David Harkey said in a statement.
The operation of a vehicle under the influence of marijuana is illegal in all 50 states. This remains the case even after certain states made the move to legalize recreational marijuana use. However, accurately testing and determining marijuana impairment has been challenging for professionals. One study by safety ex