Ignition interlock devices
Interlock devices require a breath sample to start a vehicle. Many states mandate interlock after a DUI conviction or as a condition to drive during suspension.
Key points
- Installation and monthly calibration costs
- False positives from mouth alcohol or products
- Rules for rolling re‑tests and lockouts
- Removal process when eligibility is met
Disclaimer: Laws differ by state and change over time. Always consult a licensed attorney in your jurisdiction.