DMV Defense
Ignition Interlock Device (IID) Requirements, Installation & Compliance
Legal Counsel Review: Senior DUI Trial Attorney & Forensic Specialist•Published: September 2, 2026•Statutory Jurisdiction: State & Federal Courts
Under California Senate Bill 1046, drivers convicted of DUI or facing administrative suspensions can avoid hard driver license suspensions by installing a certified Ignition Interlock Device (IID).
1. Mandatory IID Duration by Offense Tier
| Conviction Level | Mandatory IID Term (SB 1046) | Full Driving Privileges Available? |
|---|---|---|
| 1st DUI (No Injury) | 6 Months (Voluntary for full driving) | Yes (Immediately upon IID installation & SR-22) |
| 1st DUI (With Injury) | 6 Months to 1 Year Mandatory | Yes (With IID installed) |
| 2nd DUI Offense | 1 Year Mandatory | Yes (Full unrestricted route driving with IID) |
| 3rd DUI Offense | 2 Years Mandatory | Yes (Full unrestricted route driving with IID) |
| 4th DUI / Felony DUI | 3 Years Mandatory | Yes (Full unrestricted route driving with IID) |
🚗 Steps for Immediate Reinstatement
1. Install certified IID unit. 2. File Form DL 920 with DMV. 3. Submit Proof of Financial Responsibility (SR-22). 4. Pay $125 administrative reissue fee.
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Authored & Verified by Duiattorneysonline Senior Trial Counsel
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