About Ignition Interlock Device

Ignition Interlock Device is for drivers told to put an ignition interlock in their car: it shows which companies install in their state and what the device costs, and it books the appointment.

The company behind the site

Beacon Compliance Network Inc.
1000 Louisiana Street, Suite 4300
Houston, TX 77002, United States

Our booking line

When you call 888-528-2919 or send the booking form, we pass your request to an interlock company or installer that serves your state, so they can set up your appointment. The company that gets your request may pay us for it. The comparison pages look the same either way.

How the comparisons are made

We take the states each company covers from the location list it publishes. Prices are copied from each company's website, and the star scores from its page on Trustpilot. For state rules we use the Insurance Institute for Highway Safety's table and the interlock program pages each state runs, with a link wherever one is used.

Not a state agency

No state program endorses this site, and it is not an interlock manufacturer, a court or a state agency. Everything here is general information rather than legal advice.

Getting in touch

To book an install, use the booking form; for anything about your data, use the privacy request form.