Nationwide Ignition Interlock

Nationwide Interlock – Your Trusted Roadguard Ignition Interlock Provider

If you’ve been ordered to install an ignition interlock device (IID) after a DUI or drunk driving arrest, Nationwide Interlock is here to make the process fast, simple, and stress-free. As an official Roadguard Ignition Interlock Device Service Provider, we deliver state-certified, court-approved car breathalyzers that meet all compliance requirements—so you can get back on the road with confidence.

An ignition interlock device is the most widely used technology to prevent drunk driving. While many people aren’t familiar with how these devices work, they’re more common than you might realize. That’s why our experienced customer service representatives are ready to answer your questions and guide you step-by-step through the entire process, from scheduling your installation to staying compliant with monthly service.

With same-day, evening, and weekend appointments, plus a best price guarantee and free installation promotions, Nationwide Interlock makes compliance affordable and convenient. We have certified service locations across Michigan, Florida, Ohio, Minnesota, Tennessee, Wisconsin, and Indiana, so help is always nearby.