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Ignition Interlock Device

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ignition interlock device

Woman in car blowing into Ignition Interlock Device

What is an IID?

An Ignition Interlock Device or IID is similar to a breathalyzer that is wired to your vehicle’s ignition.  It requires you to provide a breath sample before the engine will start. If the device detects alcohol on your breath, the engine will not start. As you drive, the device will beep periodically to request additional breath samples to ensure continued absence of alcohol in your system.

The Ignition Interlock Device Pilot program has been effective in Los Angeles County since 1 July 2010. Under the requirements of the program, you are required to install an IID for a minimum period of 5 months if this is your first DUI in 10 years.

IID Restriction Terms

During your IID restriction period, you cannot drive vehicles that are not equipped with a functioning IID. The term of the IID restriction period is based on the initial DUI offense and the number of DUI related offenses you have within the prior 10 years, as specified below:

Number of
Offenses
Within 10 Years
IID Restriction Period
for Conviction of
VC 23152 [1]
IID Restriction Period for
Conviction of VC 23153 [2] or
California Penal Code 191.5(b)
15 months12 months
212 months24 months
324 months36 months
4 or more36 months48 months

A senate bill [3] was passed in September 2016 which will modify these restrictions (the 5 month restriction period will become 6 months), but the bill will not take effect until January 1, 2019.

Read more about Ignition Interlock Devices [4]