Pennsylvania DUI Ignition Interlock Requirements (2026): IILL, Costs & Approved Providers
Pennsylvania’s IID system centers on the Ignition Interlock Limited License (IILL) — a restricted license that lets you drive with the device during your suspension period. A standard first-offense general-impairment DUI (BAC 0.08–0.099%) carries no suspension and no IID. High BAC, drugs, refusals, and repeat offenses trigger it. The 2-month Declaration of Compliance window is your exit gate. Here’s how it all works.
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Pennsylvania DUI interlock requirements at a glance
| Offense term | DUI (Driving Under the Influence) — 75 Pa.C.S. 3802 |
| All-offender? | No — first-offense general impairment (BAC 0.08–0.099%) carries no suspension and no IID requirement under current PA law |
| General impairment 1st offense (0.08–0.099%) | No license suspension; no IID required. ARD (Accelerated Rehabilitative Disposition) may apply. |
| High BAC 1st offense (0.10–0.159%) | 12-month suspension; IILL available immediately; roughly 1-year interlock period under 3805 |
| Highest BAC 1st offense (0.16%+) or refusal or drugs | 12-month suspension; IILL available immediately; 1-year interlock period under 3805 |
| Minor passenger 1st offense | Raises grading under 3803; suspension and IILL/IID apply. No standalone IID trigger — the grading elevation brings it in. |
| 2nd offense | 12–18 month suspension by tier; IILL available after ~6 months; 1-year interlock period under 3805 before unrestricted restoration |
| 3rd+ offense | 12–18 months by tier (5-year revocation scenarios exist); IILL after ~6 months; 1-year interlock under 3805 before unrestricted license |
| IILL — what it is | Ignition Interlock Limited License — permits driving any vehicle equipped with a PennDOT-approved IID during the suspension/interlock period (75 Pa.C.S. 1556) |
| IILL petition fee | $85 non-refundable (form DL-9108). Separate PennDOT restoration fee stated in your restoration letter. |
| Hardship exemption | Income below 200% of federal poverty guidelines, or participation in a listed assistance program → IID on one vehicle only; no fee subsidy. Vendor certifies to PennDOT. |
| Declaration of Compliance | Vendor files that no failed/missed tests or 0.08%+ readings occurred in the prior 2 months → PennDOT issues unrestricted license (3805(h.2)) |
| Driving without IID (3808) | 1st conviction: interlock extended 12 months from conviction. 2nd conviction: IILL recalled + 12-month additional suspension. |
| SR-22 required? | No — Pennsylvania does not use SR-22 or FR-44 filings |
| Who administers | PennDOT Bureau of Driver Licensing — pa.gov — IILL |
| Governing law | 75 Pa.C.S. 3805; 1556; 3806; 3808; 67 Pa. Code Ch. 88 |
Does your Pennsylvania DUI require an interlock?
Pennsylvania’s DUI statute (75 Pa.C.S. 3802) has three BAC tiers, and the IID/IILL requirement depends on which tier your offense falls in:
- General impairment (BAC 0.08–0.099%), first offense: No license suspension and no IID required for a first offense in this tier. ARD (Accelerated Rehabilitative Disposition) is typically available as an alternative.
- High BAC (0.10–0.159%), first offense: 12-month suspension; IILL available immediately; approximately 1-year interlock period.
- Highest BAC (0.16%+), refusal, or controlled substance, first offense: 12-month suspension; IILL available immediately; approximately 1-year interlock period.
- Any DUI, second or subsequent offense: Suspension and IILL/IID required in all tiers for repeat offenders (12–18 months by tier; IILL after approximately 6 months of suspension).
Standard first-offense DUI in PA (BAC 0.08–0.099%) typically carries no IID. If your BAC was under 0.10% and this is your first DUI, you may not face a suspension or IID requirement at all under Pennsylvania law. ARD (Accelerated Rehabilitative Disposition) is typically available for first offenders in this tier, which keeps the conviction off your record. Confirm the tier your offense falls in with your attorney — it determines everything in Pennsylvania’s DUI system.
How the IILL works
The Ignition Interlock Limited License (IILL) under 75 Pa.C.S. 1556 is Pennsylvania’s mechanism for driving during a DUI-related suspension. It permits you to operate any vehicle that is equipped with a PennDOT-approved IID. To get an IILL:
- Wait the required period into your suspension (immediately for high/highest BAC first offenses; approximately 6 months for second and subsequent)
- File form DL-9108 (IILL petition) with PennDOT and pay the $85 non-refundable fee
- Install a PennDOT-approved IID in any vehicle you will operate
- PennDOT issues the IILL — you may drive those vehicles for the interlock period
The IILL interlock period runs under 75 Pa.C.S. 3805. Toward the end, you need a 2-month clean window to qualify for unrestricted restoration.
The 2-month Declaration of Compliance window is your exit gate. To qualify for an unrestricted license under 3805(h.2), your provider must file a Declaration of Compliance stating that no failed or missed tests and no BAC readings of 0.08%+ occurred in the prior 2 consecutive months. PennDOT notices you approximately 30 days before eligibility. Any violation in those 2 months delays the Declaration and delays your unrestricted restoration. Keep an especially clean record in the final 2 months of your interlock period.
Hardship exemption — one vehicle, no fee discount
Pennsylvania’s Financial/Economic Hardship Exemption (75 Pa.C.S. 3805; 67 Pa. Code 88.102) reduces the administrative burden for qualifying low-income drivers — but note what it does and does not provide:
- What it provides: You are required to install the IID on only ONE vehicle (instead of all vehicles you own or operate), which reduces total device costs if you have multiple vehicles.
- What it does NOT provide: No fee subsidy — you still pay full device installation and monthly costs. There is no state fund that covers or reduces IID costs under this exemption.
- Eligibility: Adjusted gross household income below 200% of the federal poverty guidelines, or participation in a listed state assistance program. Your provider certifies your eligibility to PennDOT.
PennDOT-approved providers
Four major national providers are on Pennsylvania’s approved list. Guardian, RoadGuard/Dräger are not on the PA list.
| Provider | Monthly est. | Coverage | |
|---|---|---|---|
| Intoxalock | $60–100 | Statewide | 888-283-5899 |
| Smart Start | $70–100 | Statewide | 800-831-3299 |
| LifeSafer | $65–95 | Statewide | 800-634-3077 |
| ALCOLOCK | $60–90 | Statewide | 866-700-9300 |
Confirm current PennDOT approval at pa.gov before signing. Guardian and RoadGuard/Dräger are not on the PA list. Monthly estimates are market ranges. Hardship exemption reduces vehicle count, not fees — no fee subsidy available.
What an interlock costs in Pennsylvania
| Installation (one time) | $70–150 |
| Monthly lease + monitoring | $60–100 |
| Removal | $50–75 |
| IILL petition fee (DL-9108) | $85 (non-refundable) |
| PennDOT restoration fee | Stated in your restoration letter (confirm with PennDOT) |
Over a 1-year interlock period: roughly $900–1,450 before PennDOT fees. No state fee subsidy available. Estimate your exact cost →
How to get your IILL and install — 5 steps
- Confirm with your attorney which BAC tier your offense falls in — this determines whether an IID/IILL is required at all and when you become eligible to apply.
- When eligible, complete form DL-9108 (IILL petition) and submit to PennDOT with the $85 non-refundable fee. If applying for the hardship exemption (200% FPL or assistance program), inform your provider — they certify your eligibility to PennDOT.
- Contact a PennDOT-approved provider, confirm current approval, and schedule installation. Install in every vehicle you operate (or just one if hardship exemption applies).
- Drive with clean compliance. In the 2 months before your interlock period ends, maintain a perfect record — no failed tests, missed tests, or 0.08%+ readings. PennDOT notices you ~30 days before eligibility.
- Provider files the Declaration of Compliance → PennDOT issues your unrestricted license. Do not remove the device until PennDOT authorizes.
High BAC, refusal, or repeat offense? File your IILL petition and book installation now.
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Pennsylvania does not require SR-22 insurance. PA has no SR-22 or FR-44 filing requirement. Your auto insurance premium will still rise after a DUI conviction — comparing carriers before renewal helps. See our Pennsylvania DUI insurance page →
Pennsylvania DUI interlock FAQ
Does every DUI in Pennsylvania require an interlock?
No — a first-offense general impairment DUI (BAC 0.08–0.099%) carries no license suspension and no IID requirement under current Pennsylvania law. The IID/IILL is required for: high BAC (0.10%+) or highest BAC (0.16%+) first offenses; drug DUI; refusal; and all second and subsequent DUI offenses regardless of BAC. Confirm your tier with your attorney.
What is an IILL and how do I get one?
The Ignition Interlock Limited License (IILL) under 75 Pa.C.S. 1556 permits you to drive vehicles equipped with a PennDOT-approved IID during your DUI suspension. File form DL-9108 with PennDOT and pay the $85 non-refundable fee when you become eligible (immediately for high/highest BAC first offenses; approximately 6 months into the suspension for repeat offenders). PennDOT then issues the restricted license.
What is the Declaration of Compliance in Pennsylvania?
Under 3805(h.2), your provider files a Declaration of Compliance with PennDOT stating that no failed or missed tests and no 0.08%+ readings occurred in the prior 2 consecutive months. PennDOT notifies you approximately 30 days before you become eligible. Once the Declaration is filed and accepted, PennDOT issues your unrestricted license. Any violation in the 2-month window delays the Declaration and delays restoration.
What does the hardship exemption actually provide in Pennsylvania?
The Financial/Economic Hardship Exemption (75 Pa.C.S. 3805; 67 Pa. Code 88.102) requires you to install the IID on only one vehicle instead of every vehicle you operate — reducing costs if you have multiple vehicles. It does NOT provide a fee subsidy or any reduction in device costs. You still pay full installation and monthly fees. Eligibility: adjusted gross household income below 200% of federal poverty guidelines, or participation in a listed assistance program.
What happens if I drive without the IID in Pennsylvania?
Under 75 Pa.C.S. 3808: a first conviction for driving without the required IID extends your interlock requirement by 12 months from the date of conviction. A second conviction results in recall of your IILL and an additional 12-month suspension. These are criminal convictions, not just administrative violations.
Sources:
PennDOT — Ignition Interlock Limited License;
75 Pa.C.S. 3805; 1556; 3806; 3808; 67 Pa. Code Ch. 88.
Last verified August 2026.
Advertising disclosure: We may be compensated when you contact a provider through our numbers or links. This doesn’t affect our rankings or information. Content is informational only — not legal advice. Verify PennDOT approval before installation.