What is an Ignition Interlock Device?

Ignition interlock devices (IID), are sometimes referred to as breath alcohol ignition interlock devices (BAIID), or car breathalyzers.

An IID is a small device that’s installed directly into a vehicle's ignition system. Once it is installed, the device prevents any driver from starting the car while intoxicated. Here’s how they work:

Often, ignition interlock devices are required for people convicted of DUI, DWI, OWI, OVI, or OUI. The state regulations vary, but most require an IID for some time as a condition of regaining driving privileges. Interlock devices must meet government criteria determined by the state. There are several top providers of IIDs, and we can help find one that meets your state’s requirements.

DMV Interlock Providers

Fill out the form below and your interlock advisor will guide you through our easy one-step application process.

Intoxalock Ignition Interlock

  • Blow-inhale-blow BrAC test pattern
  • One-button operating system
  • Meets all state criteria
  • Low cost, between $2.50 and $3.50 a day
  • 24/7 customer support

ADS - Alcohol Detection Systems

  • Bilingual prompts
  • Voice command features
  • Discreet handheld IID with camera function
  • 24/7 customer support
  • Meets all state criteria

Interlock Advisors are Here to Help

DMV Interlock advisors are familiar with state regulations and what IID requirements are. Fill out the form below and a DMV IID advisor will contact you to guide you through our simple, one-step, application process.