Pennsylvania · DUI · Checked October 2026
Ignition Interlock Rules in Pennsylvania
Ignition Interlock Rules in Pennsylvania: What Are the Rules?
When Pennsylvania requires an ignition interlock after a DUI.
- First offense
- Not for a first general impairment offense; required after a suspension for a first high-rate, highest-rate or refusal case before full restoration
- Repeat offenses
- Yes, for repeat offenders
First Offense in Pennsylvania
Not for a first general impairment offense; required after a suspension for a first high-rate, highest-rate or refusal case before full restoration
Repeat Offenses in Pennsylvania
Yes, for repeat offenders
How the Program Works in Pennsylvania
The interlock term is 1 year or 18 months from restoration, with credit starting when the ignition interlock limited license is issued. PennDOT's fact sheet puts average lease costs at $900 to $1,300 per year.
More on DUI Law in Pennsylvania
See the full overview of DUI laws in Pennsylvania and read about how ignition interlock programs work.
This page summarizes Pennsylvania law from official sources, checked October 2026. It isn't legal advice; a lawyer licensed in Pennsylvania can advise on your case.
Frequently Asked Questions
Is an Ignition Interlock Required for a First DUI in Pennsylvania?
Not for a first general impairment offense; required after a suspension for a first high-rate, highest-rate or refusal case before full restoration
Is an Interlock Required for Repeat Offenses?
Yes, for repeat offenders