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Interlock Device Information

Learn more about the requirements to regain your license through your state’s ignition interlock device (IID) program. We’re your interlock device experts, and we’ve researched them in-depth so you don’t have to.

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Ignition Interlock Device (IID)

Ignition interlock devices, or car breathalyzers, are used to prevent drunk driving. Many offenders have to install an IID after a drunk driving offense as a condition to regain their license.

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The Process

Interlock.com can help you find the best interlock provider for your unique circumstances. We’re here to make the search less overwhelming.


Learn more about the interlock process and how it works


Get information about guidelines in your specific state.


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IID Installation Near You

Looking for local installers? Search ignition interlock device installations by location to find installers close to you.

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