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  • by Paul Armentano, NORML Deputy Director June 22, 2017

    thumbs_upThe enactment of statewide laws regulating the adult use and sale of cannabis is not associated with subsequent changes in traffic fatality rates, according to an analysis of traffic safety data (“Crash fatality rates after recreational marijuana legalization in Washington and Colorado”) published today in the American Journal of Public Health.

    Investigators from the University of Texas-Austin evaluated crash fatality rates in Colorado and Washington pre- and post-legalization. They compared these rates to those of eight control states that had not enacted any significant changes in their marijuana laws.

    “We found no significant association between recreational marijuana legalization in Washington and Colorado and subsequent changes in motor vehicle fatality rates in the first three years after recreational marijuana legalization,” author concluded.

    They further reported, “[W]e also found no association between recreational marijuana legalization and total crash rates when analyzing available state-reported nonfatal crash statistics.”

    Commenting on the findings, NORML Deputy Director Paul Armentano said: “These conclusions ought to be reassuring to lawmakers and those in the public who have concerns that regulating adult marijuana use may inadvertently jeopardize public safety. These results indicate that such fears have not come to fruition, and that such concerns ought not to unduly influence legislators or voters in other jurisdictions that are considering legalizing cannabis.”

    A prior study published last year by the same journal reported that the enactment of medical marijuana legalization laws is associated with a reduction in traffic fatalities compared to other states, particularly among younger drivers.

    Fatal accident rates have fallen significantly over the past two decades — during the same time that a majority of US states have legalized marijuana for either medical or social use. In 1996, the US National Highway Traffic Safety Administration reported that there were an estimated 37,500 fatal car crashes on US roadways. This total fell to under 30,000 by 2014.

    A summary of the study appears online under ‘First Look’ on the apha.org website here.

  • by Paul Armentano, NORML Deputy Director December 21, 2016

    cropsThe passage of medical marijuana legalization is associated with reduced traffic fatalities among younger drivers, according to data published online ahead of print in the American Journal of Public Health.

    Investigators from Columbia University in New York and the University of California at Davis analyzed traffic fatality data from the years 1985 to 2014.

    They reported that states with medical cannabis laws had lower overall traffic fatality rates compared to states where cannabis is illegal, and that there was an immediate decline in motor vehicle deaths following the establishment of a legal cannabis market – particularly among those under 44 years of age.

    Authors concluded: “[O]n average, MMLs (medical marijuana laws) states had lower traffic fatality rates than non-MML states. …. MMLs are associated with reductions in traffic fatalities, particularly pronounced among those aged 25 to 44 years. … It is possible that this is related to lower alcohol-impaired driving behavior in MML-states.”

    An abstract of the study, “US traffic fatalities, 1985-2014, and their relationship to medical marijuana laws,” appears online here.