Ignition Interlock Device (IID) in Delaware
Delaware uses the term "DUI" for impaired driving offenses. IID requirement: required for all dui offenses. First offense duration: 12 months. Monthly cost: $65-$100.
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Quick Answer
Delaware requires IID for all DUI convictions, including first offenses. IID is mandatory for license reinstatement.
IID Duration by Offense
| Offense | IID Duration |
|---|---|
| 1st Offense | 12 months |
| 2nd Offense | 18 months (with at least 1 year hard suspension first) |
| 3rd Offense | 24 months |
| 4th+ Offense | 30 months |
BAC threshold: Any DUI conviction (no BAC threshold — all offenders)
IID Cost Breakdown in Delaware
| 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-$65 | 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 Delaware
Contact providers directly for current pricing and service center locations in Delaware. Compare at least 2-3 providers before choosing — prices and service quality vary.
Restricted License with IID
Delaware allows a conditional license with IID installed for work, school, medical appointments, and court-ordered programs.
Tampering / Circumvention Penalties
Tampering with an IID in Delaware is a Class A misdemeanor carrying up to 1 year in jail. The IID requirement is extended by 6 months for each violation.
Early Removal
Delaware does not permit early removal of IID.
Delaware-Specific Notes
Delaware requires IID for all offenders but has a longer minimum duration (12 months) for first offenses compared to some other all-offender states.
Frequently Asked Questions
Is an IID required for a first DUI in Delaware?
How long do I need an IID in Delaware?
How much does an IID cost in Delaware?
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