ABSTRACT
Oregon Ballot Measure 110 (BM 110) reduced the penalties for non-commercial possession of a controlled substance, downgrading them from a felony or misdemeanor to a new Class E violation, punishable by a maximum $100 fine. In this paper, we investigate whether BM 110 was associated with changes in drug-related fatal traffic crashes in Oregon after its implementation in February 2021. To do so, we used Fatality Analysis Reporting System (FARS) data from 2018 to 2021 to calculate population-adjusted state-level drug-related fatal traffic crashes. We also employed a modified synthetic control method to create a “synthetic” Oregon, designed to closely resemble the state’s pre-policy sociodemographic characteristics and outcome trends while correcting for time-invariant pre-policy differences. The findings show that BM 110 was not associated with changes in drug-related fatal traffic crashes per 100,000 population (0.114, 95% CI: −0.106, 0.334). These results suggest that the implementation of BM 110 did not change drug-related fatal traffic crashes in Oregon in the early period following its adoption.
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