Ignition Interlock Device (IID) in Pennsylvania
Pennsylvania uses the term "DUI" for impaired driving offenses. IID requirement: required for high bac or repeat offenses. First offense duration: 1 year (only if BAC 0.10%+ or refusal; not required for BAC 0.08-0.099%). Monthly cost: $65-$100.
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Quick Answer
Pennsylvania requires IID for DUI convictions at the High BAC tier (BAC 0.10-0.159%), Highest BAC tier (BAC 0.16%+), and for all second and subsequent offenses. Standard first-offense DUI at the General Impairment tier (BAC 0.08-0.099%) does not require IID.
IID Duration by Offense
| Offense | IID Duration |
|---|---|
| 1st Offense | 1 year (only if BAC 0.10%+ or refusal; not required for BAC 0.08-0.099%) |
| 2nd Offense | 1 year |
| 3rd Offense | 1 year |
| 4th+ Offense | 1 year (minimum; may be longer by court order) |
BAC threshold: 0.10% BAC for first offense; all repeat offenses
IID Cost Breakdown in Pennsylvania
| Item | Cost | Notes |
|---|---|---|
| Installation | $75-$150 | One-time fee. Takes about 1 hour. |
| Monthly Lease + Monitoring | $65-$100/mo | Includes device lease and monitoring. |
| Calibration | $25-$75 | Every 60 days. |
| Removal | $50-$100 | One-time fee when IID period ends. |
| Estimated Total (6 months) | $515-$850 | Install + 6 months lease + removal. |
| Estimated Total (12 months) | $905-$1,450 | Install + 12 months lease + removal. |
One-time
Lease + monitoring
Every 60 days
One-time
All-in estimate
All-in estimate
Approved IID Providers in Pennsylvania
Contact providers directly for current pricing and service center locations in Pennsylvania. Compare at least 2-3 providers before choosing — prices and service quality vary.
Restricted License with IID
Pennsylvania issues an IID-restricted license allowing driving with the device installed. The restricted license is available after serving the mandatory license suspension period.
Tampering / Circumvention Penalties
Tampering with an IID in Pennsylvania is a misdemeanor of the first degree (for repeat offenders) carrying up to 5 years in prison. First-offense tampering is a misdemeanor of the third degree (up to 1 year).
Early Removal
Pennsylvania does not allow early removal. The full 1-year IID period must be completed.
Pennsylvania-Specific Notes
Pennsylvania uses a tiered DUI system: General Impairment (0.08-0.099%), High BAC (0.10-0.159%), and Highest BAC (0.16%+). IID is required for the High and Highest tiers, plus all repeat offenders. PA has notably severe tampering penalties — up to 5 years for repeat offender tampering.
Frequently Asked Questions
Is an IID required for a first DUI in Pennsylvania?
How long do I need an IID in Pennsylvania?
How much does an IID cost in Pennsylvania?
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