Interlock Ratings

Get To Know Your Ignition Interlock Program

Interlock Device Terms

A guide to help you understand what you are looking for

The ignition interlock market is a distinct and complex industry. As a new customer, it’s hard to know precisely what information one needs to look for whether it’s about the ignition interlock device, enrollment and installation process, or state laws. Here are some terms that are commonly associated with the legal and regulatory aspects of ignition interlock devices: 

  • IID: Stands for Ignition Interlock Device. A breathalyzer device is installed in a vehicle that requires the driver to use it to start the car. It helps prevent the driver from driving under the influence.
  • BAIID: Stands for Breath Alcohol Ignition Interlock Device. This term is mainly used in the state of Illinois and is the same thing as an IID.
  • BAC: Stands for Blood-Alcohol Content. BAC measures the amount of alcohol in an individual’s bloodstream. It can determine an individual’s level of intoxication.
  • DUI/DWI: Stands for Driving Under the Influence/Driving While Intoxicated. A DUI/DWI is a criminal offense that occurs when an individual is driving a vehicle while impaired by the use of alcohol or drugs.
  • Interlock Program: An interlock program is a process that individuals who are in the interest of using an ignition interlock device undergo to either finish a sentence from a DUI charge or for however long they want voluntarily. This includes the enrollment, installation, monitoring, and maintenance aspects of owning an ignition interlock device.
  • Lock Out: A lockout is what happens when an individual has failed to pass their iid test after taking it the maximum amount of times to unlock their car. A failed test occurs when the driver’s BAC is above the allowed limit.
  • Calibration: Calibration is the process of readjusting and testing an IID to make sure that it reads a driver’s BAC accurately. Calibration usually happens every 30 days.
  • Rolling Retests: Rolling retests are random breathalyzer tests while the vehicle is in motion to ensure that a driver is sober throughout their trip.
  • Vendor/Service Provider: These are companies that drivers enroll with to purchase, install, and service their IIDs.
  • Hardship License: In some jurisdictions, individuals with IIDs may be eligible for a hardship or restricted driver’s license to drive to essential locations, such as work or medical appointments, during their license suspension.

Trouble finding an ignition interlock device that is right for you? Get a free interlock report today! We know that choosing an interlock device and ignition interlock program can be tricky. That’s why we have tested out the top brands in the US and created a guide to help individuals who are ready to get back on the road. Download our free interlock buying guide to get started.