California Ignition Interlock Device (IID) - Installation & Requirements

Who Needs an IID?

California requires IIDs for all DUI convictions with a BAC of 0.15% or higher, all repeat offenses, and most first-time DUI convictions if you want a restricted license instead of serving the full suspension.

How Long is the IID Requirement?

IID periods range from 6 months (first offense) to 10 years (fourth offense). The period doesn't start until you install the device and provide proof to the DMV.

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Installation and Monthly Costs

Installation costs $70-$150, with monthly fees of $70-$120. Some manufacturers offer financial assistance programs for low-income participants. The total cost for a 6-month period is typically $500-$800.

Approved Manufacturers

California certifies multiple IID manufacturers including Intoxalock, LifeSafer, Smart Start, and Draeger. Each has different features, pricing, and service locations.

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California Ignition Interlock Device Requirements

Table of Contents

Who Needs an IID?

How Long is the IID Requirement?

Installation and Monthly Costs

Approved Manufacturers

Get Help with IID Installation

Related Information

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