Visit for the latest Coronavirus Disease (COVID-19) updates.

You are here

Evidence-Based Resource Summary

Strength of Evidence: 
4 out of 4
4 out of 4
Year Published: 

Motor Vehicle Injury – Alcohol-Impaired Driving: Ignition Interlocks

Description of Resource: 
The Community Preventive Services Task Force recommends the use of ignition interlocks for people convicted of alcohol-impaired driving on the basis of strong evidence of their effectiveness in reducing re-arrest rates while the interlocks are installed. Public health benefits of the intervention are currently limited by the small proportion of offenders who install interlocks in their vehicles. More widespread and sustained use of interlocks among this population could have a substantial impact on alcohol-related crashes. Ignition interlocks are devices that can be installed in motor vehicles to prevent operation of the vehicle by a driver who has a blood alcohol concentration above a specified level (usually 0.02%–0.04%). Interlocks are most often installed in vehicles of people who have been convicted of alcohol-impaired driving to give them an opportunity to drive legally.

Evidence-Based Resource Details

help Learn more about EBR criteria
Developed By: 
Community Preventive Services Task Force
Developer Type: 
Non-Federal Government
Healthy People 2020 Topic Area(s): 
Injury and Violence Prevention
Substance Abuse
Healthy People 2020 Objectives: 
Resource Type: 
Systematic Review
The Community Guide [Internet]. Motor Vehicle Injury – Alcohol-Impaired Driving: Ignition Interlocks Concentration (BAC) Laws. c2006– [cited 2017 Feb 17]. Available from: