The 24/7 Sobriety Program’s Effects on Impaired Drivers in North Dakota: 2014–2021

Vachal, Kimberly; Zhou, Yun · 2022 · ROSA P / Upper Great Plains Transportation Institute

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Summary

This study evaluates the effectiveness of North Dakota’s 24/7 Sobriety Program, an intervention strategy mandating that alcohol-impaired driving offenders remain sober as a condition of bond or pre-trial release. Motivated by the high prevalence of repeat DUI offenders and the state’s significant alcohol-related crash fatalities, the research aims to provide evidence-based insights for continuous program improvement. Specifically, the authors investigate whether the program produces statistically significant deterrent effects during enrollment, if these effects persist after completion, if outcomes vary across participant subpopulations, and which factors are associated with recidivism. The analysis utilizes administrative data from the North Dakota Bureau of Criminal Investigation and the Department of Transportation covering the period from 2014 to 2021. The 24/7 Sobriety Program requires participants to undergo twice-daily monitoring via breath tests, transdermal ankle bracelets, drug patches, or urinalysis. Following the enactment of House Bill 1302 in 2013, enrollment became mandatory for repeat offenders, with sentencing periods ranging from 360 days for second and third offenses to 24 months for fourth and subsequent offenses. The researchers examined descriptive statistics regarding DUI-related citations, non-DUI traffic violations, and crash events, stratifying the data by demographic variables such as gender, age, region, and recidivist status. The results indicate that participants significantly improve their crash and citation metrics after enrolling in the program, supporting the intervention’s deterrent effects. However, the study identifies distinct patterns among specific subgroups. Individuals participating in the program for a fourth-time offense or higher demonstrated a greater likelihood of relapsing into alcohol-impaired driving behavior compared to those with fewer prior offenses. The data suggest that this subgroup is more likely to suffer from chronic alcohol abuse and mental health issues, making them less responsive to standard monitoring interventions. While the program generally reduces recidivism, the efficacy appears to diminish for the most chronic offenders. The findings conclude that while the 24/7 Sobriety Program is effective for the majority of participants, it may be insufficient for repeat offenders with severe addiction histories. The authors recommend that individuals with fourth-time or higher offenses benefit from supplemental strategies, such as targeted treatment programs, to address underlying health issues. This assessment provides critical data for policymakers to refine sentencing and intervention protocols, ensuring that resources are directed toward high-risk populations to maximize roadway safety and reduce impaired driving recidivism in North Dakota.

Key finding

Participants significantly improved crash and citation metrics after enrolling in the program, but those with fourth or subsequent offenses had a higher likelihood of recidivism.

Methodology

dataset

Provenance

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Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

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• dui enforcement

Information type

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• Applied Guidance: countermeasure evaluation