After a DUI in Pennsylvania, getting your driving privileges back is not as simple as waiting out your suspension. You will very likely be required to install an ignition interlock device (IID) on your vehicle.
What Is an Ignition Interlock Device?
An ignition interlock device is a breath-testing machine wired into your vehicle’s ignition system. Before the car will start, you must blow into the device and register a BAC below the set threshold (typically .025%). Many devices also require rolling retests while driving to ensure you have not consumed alcohol after starting the vehicle.
Who Is Required to Use One in Pennsylvania?
Pennsylvania requires ignition interlock for ALL DUI offenders — including first-time offenders — as a condition of restoring driving privileges after a suspension. The interlock period is one year.
The Ignition Interlock Limited License (IILL)
If your license has been suspended due to a DUI, you do not have to wait the full suspension period. Pennsylvania’s IILL allows you to drive — with the IID installed — during your suspension period, which is critical for maintaining employment and attending required treatment.
What Are the Costs?
- Installation fee: $70–$150
- Monthly monitoring fee: $60–$100 per month
- Removal fee at end of program: $50–$75
If you cannot afford the device on all your vehicles, you may apply for a financial hardship exemption, which limits the requirement to one vehicle.
What Happens If You Violate the Interlock Requirement?
- First violation (driving without or tampering with the IID): Your interlock period is extended by 12 months from the date of conviction.
- Second or subsequent violation: Driving privileges are suspended for 12 months; upon restoration you must comply with interlock for another 12 months.
PennDOT – Ignition Interlock Program
Related Articles
- Will I Lose My License After a First DUI in PA?
- I Got a DUI in PA — What Happens Now?
- What Is the Difference Between General, High, and Highest BAC in PA?
What Should You Do Next?
Pennsylvania law is complex and deadlines can be short. This article is general legal information — not legal advice specific to your situation.
- Pennsylvania Legal Aid Network – Find Free Help Near You
- PA Courts Self-Help Center
- Lawyer Referral – PA Bar Association
If you cannot afford an attorney, contact your local legal aid office. Time-sensitive legal matters require fast action.