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How can ignition interlocks help prevent drunk driving?

Ignition interlocks prevent drivers who were convicted of alcohol-impaired driving from operating their vehicles if they have been drinking. Interlocks are effective in reducing re-arrest rates from drinking and driving by about two-thirds while the device is on the vehicle. Also, drivers with interlocks had fewer alcohol-impaired driving crashes than drivers who had their drivers’ licenses suspended because of a DWI conviction.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.