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Ignition interlock in Illinois

Illinois's full guide is still being checked against the statute and the state agency. Below is the IIHS rule for Illinois, the agency that runs the program and the companies it approves, each linked to its source.

Checked Oct 23, 2026Sources
Repeat convictions only
First offense, to drive during the post-conviction suspension
no
First offense, as a penalty or to get the license back
no
Repeat offense, as a penalty or to get the license back
yes
IIHS, October 20261

    369 locations in Illinois from the companies' own locators. Distances are straight-line; call to confirm the location services your device.

    Each dot is a service location listed by an interlock company. Orange rings mark your search.Company locators, Oct 2026

    Who has to install one in Illinois

    Law: 625 ILCS 5/6-206.1; 92 Ill. Adm. Code 1001.440-.444 · read it

    For the rule that applies to you, read your court order or the letter from the DMV.

    A judge can order an interlock in other cases too. Your court order or DMV letter is what binds you.

    Where each company can install in Illinois

    You'll go back to the same company's locations for service for the whole order, so check that one is close to where you live and work before you book.

    Locations as each company lists them on its own locator (Smart Start, Intoxalock, LifeSafer, Low Cost Interlock, RoadGuard), pulled Oct 2026. Some shops serve more than one company. Alcohol Detection Systems doesn't publish a locator we could read.

    Interlock companies approved in Illinois

    From the state's approved list (read it). Use a company on this list, or the install won't count. 12-month figures are lease, install and removal from each company's filed or published fee schedule, not Illinois prices; see how we add them up.

    Related guides

    InterlockCompare is independent and doesn't make, sell or install interlocks. Not legal advice.

    Sources

    1. Illinois: first offense, post-conviction suspension: noiihs.org/research-areas/alcohol-and-drugs/alcohol-interlock-laws-by-state