Is an ignition interlock required after a first DUI arrest in Illinois?

Under 625 ILCS 5/6-206.1, a first offender whose license is summarily suspended is issued a Monitoring Device Driving Permit (MDDP) and must, at his or her own expense, drive only vehicles equipped with an ignition interlock device during the permit period; the device must be installed within 14 days of MDDP issuance. The statute also allows the offender to petition the court to decline the MDDP.

How long is the interlock period for a repeat DUI offender in Illinois?

625 ILCS 5/6-205(h) provides that the Secretary of State shall require ignition interlock devices for a period of not less than 5 years on all vehicles owned by a person convicted of a second or subsequent offense under § 11-501, with a fee to the Secretary of State DUI Administration Fund not to exceed $30 per month.

What is the Illinois reinstatement fee after a DUI?

625 ILCS 5/6-118(b) sets the reinstatement fee at $500 for a revocation and $250 for a statutory summary suspension under § 11-501.1; for a second or subsequent § 11-501/11-501.1 suspension or revocation, the summary-suspension reinstatement fee is $500.

How long must proof of financial responsibility be kept after an Illinois DUI revocation?

625 ILCS 5/7-304 provides that upon revocation of a driver's license under § 6-205 or § 6-206, the Secretary of State suspends the person's vehicle registrations unless the owner gives, and thereafter maintains for a period of 3 years, proof of financial responsibility.

What help exists for offenders who cannot afford a BAIID in Illinois?

Under 625 ILCS 5/6-206.1(c-5), if the Secretary of State determines an MDDP applicant is indigent, the provider must install the device, provide normal monthly monitoring and de-installation without charge and seek reimbursement from the Indigent BAIID Fund; other charges such as lockout or reset fees remain the holder's responsibility.

ILVerified against primary sources · August 28, 2026

Illinois ignition interlock & DUI requirements

Ignition interlock device rules, approved vendors, SR-22 insurance filing, and license reinstatement in Illinois, cited to the statute and the Illinois Secretary of State (Driver Services Department).

IID on first offense: At the court's discretion
Minimum IID period (first): Duration of the statutory summary suspension while hold…
SR-22 filing: Required · 3 yr
Reinstatement fee: $500

What Illinois law requires

Illinois's ignition interlock, SR-22, and reinstatement rules are set by the statute and agency rules cited below. The values in the tables on this page are taken from those sources and are not interpretations of how they apply to any particular case.

Primary source: 625 ILCS 5/6-206.1

Ignition interlock requirement

Ignition interlock requirements in Illinois by offense
Item	Illinois rule
IID on first offense	At the court's discretion
Minimum IID period, first offense	Duration of the statutory summary suspension while holding an MDDP (6 months for a first offender who failed testing; 12 months for a refusal, per 625 ILCS 5/6-208.1(a))
Minimum IID period, repeat offense	Not less than 5 years (second or subsequent § 11-501 conviction, 625 ILCS 5/6-205(h))

Illinois does not mandate a BAIID for every first offender; instead, under 625 ILCS 5/6-206.1 a first offender (as defined in § 11-500) whose license is summarily suspended under § 11-501.1 is issued a Monitoring Device Driving Permit (MDDP) and must drive only vehicles equipped with a breath alcohol ignition interlock device (BAIID) for the MDDP period, unless the offender files a petition declining the MDDP. A first offender who refused testing and was summarily revoked is not eligible for an MDDP (§ 6-208.1(e)). Repeat offenders face a BAIID requirement of not less than 5 years under § 6-205(h).

Approved interlock providers

Vendors listed here appear on the Illinois licensing agency's approved-device list. Listing order is alphabetical and is not a ranking or endorsement. Installation locations are on each vendor's own locator.

Official approved-vendor list: Illinois agency vendor list

Approved interlock vendors in Illinois
Vendor	Website	Location finder
A Simple Interlock	Listed on the agency list	—
Alcohol Detection Systems	Alcohol Detection Systems website	Find a location
ALCOLOCK	ALCOLOCK website	Find a location
Intoxalock	Intoxalock website	Find a location
LifeSafer	LifeSafer website	Find a location
Low Cost Interlock	Low Cost Interlock website	Find a location
RoadGuard US Interlock	Listed on the agency list	—
SkyFine USA	Listed on the agency list	—
Smart Start	Smart Start website	Find a location

SR-22 requirement

An SR-22 is a certificate an insurer files with the state to confirm that a driver carries the liability coverage the state requires. Some states use an FR-44 or a different form for alcohol-related offenses; where Illinois does, the sources below say so.

SR-22 requirement in Illinois
SR-22 filing required after a DUI	Yes
Filing period	3 years

The Illinois Secretary of State's Financial Responsibility (SR-22) Insurance page states that SR-22 insurance is required for individuals with safety responsibility suspensions, unsatisfied judgment suspensions, revocations, mandatory insurance supervisions, and three or more mandatory-insurance convictions, and that the insurance must be maintained for three years. A DUI conviction is a mandatory revocation under 625 ILCS 5/6-205(a)(2), and the SOS reinstatement-fee page states the $500 revocation reinstatement fee is processed only after the office has received the SR22 certificate (or an out-of-state insurance waiver). Statutory basis: 625 ILCS 5/7-304 (proof of financial responsibility for 3 years after a § 6-205 revocation). Both SOS pages were read from Internet Archive snapshots because ilsos.gov did not respond; see notes.

Program costs

Fees set by the state are cited to the fee schedule. Vendor charges vary by vendor and are shown as published ranges with the month they were checked.

Post-DUI program costs in Illinois
Item	Amount	As of
License reinstatement fee	$500	2026-08-28
Reinstatement fee – revocation (incl. DUI revocation under § 6-205) (625 ILCS 5/6-118(b))	$500	2026-08
Reinstatement fee – statutory summary suspension under § 11-501.1, first time (625 ILCS 5/6-118(b))	$250	2026-08
Reinstatement fee – statutory summary suspension, second or subsequent § 11-501/11-501.1 action (625 ILCS 5/6-118(b))	$500	2026-08
MDDP Administration Fee payable to the Secretary of State (625 ILCS 5/6-206.1(a))	Not to exceed $30 per month	2026-08
Restricted driving permit / repeat-offender BAIID fee to the Secretary of State DUI Administration Fund (625 ILCS 5/6-205(c)(4), (h))	Not to exceed $30 per month	2026-08
Indigent BAIID Fund (625 ILCS 5/6-206.1(c-5), (m))	Provider installs, monitors monthly and de-installs without charge to an offender the Secretary deems indigent; providers pay 5% of gross device revenue into the fund. Lockout/reset fees remain the holder's responsibility.	2026-08

Frequently asked questions

Is an ignition interlock required after a first DUI arrest in Illinois?: Under 625 ILCS 5/6-206.1, a first offender whose license is summarily suspended is issued a Monitoring Device Driving Permit (MDDP) and must, at his or her own expense, drive only vehicles equipped with an ignition interlock device during the permit period; the device must be installed within 14 days of MDDP issuance. The statute also allows the offender to petition the court to decline the MDDP.
How long is the interlock period for a repeat DUI offender in Illinois?: 625 ILCS 5/6-205(h) provides that the Secretary of State shall require ignition interlock devices for a period of not less than 5 years on all vehicles owned by a person convicted of a second or subsequent offense under § 11-501, with a fee to the Secretary of State DUI Administration Fund not to exceed $30 per month.
What is the Illinois reinstatement fee after a DUI?: 625 ILCS 5/6-118(b) sets the reinstatement fee at $500 for a revocation and $250 for a statutory summary suspension under § 11-501.1; for a second or subsequent § 11-501/11-501.1 suspension or revocation, the summary-suspension reinstatement fee is $500.
How long must proof of financial responsibility be kept after an Illinois DUI revocation?: 625 ILCS 5/7-304 provides that upon revocation of a driver's license under § 6-205 or § 6-206, the Secretary of State suspends the person's vehicle registrations unless the owner gives, and thereafter maintains for a period of 3 years, proof of financial responsibility.
What help exists for offenders who cannot afford a BAIID in Illinois?: Under 625 ILCS 5/6-206.1(c-5), if the Secretary of State determines an MDDP applicant is indigent, the provider must install the device, provide normal monthly monitoring and de-installation without charge and seek reimbursement from the Indigent BAIID Fund; other charges such as lockout or reset fees remain the holder's responsibility.