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  • Lauren McDowell, Interlock Install

Ignition Interlock Devices: How an IID Safeguard Roads and Lives Against Drunk Driving

Drunk driving continues to endanger lives, killing more than 10,000 people each year in the U.S. That equates to 37 people a day — about one person every 39 minutes — according to the National Highway Traffic Safety Administration (NHTSA). Enter the Ignition Interlock Device (IID), a significant technological advancement and powerful solution to aid in the fight against drunk driving.

Sheeley Law has partnered with Interlock Install to offer a series of informative articles about IIDs. In this first blog post, we provide an overview of IIDs, how they work, their purpose, and the benefits they offer in reducing the occurrence of drunk driving incidents. We also discuss the retesting rules and the DMV's important role in enforcing the interlock requirement.

What are Ignition Interlock Devices (IIDs)?

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Ignition Interlock Devices, often called IIDs, are compact breathalyzer devices installed in motor vehicles to prevent individuals under the influence of alcohol from operating their vehicles. These devices are designed to ensure the driver's and others' safety on the road.

When an individual is convicted of Driving Under the Influence (DUI), they may be required to have an ignition interlock system installed in their vehicle. This device is a safeguard, ensuring the driver is not impaired by alcohol while behind the wheel.Installing an IID involves connecting the device to the vehicle's ignition system. Before starting the vehicle, the driver must provide a breath sample by blowing into the device. If the breath alcohol content (BAC) level exceeds the predetermined legal limit, the vehicle will not start. However, if the BAC level is within the acceptable range, the vehicle can be started, allowing the driver to continue their journey safely.

Benefits of the IID

Enhanced Road Safety and Accident Prevention.

The primary goal of IIDs is to enhance road safety by preventing individuals from impaired driving. Studies have shown that vehicles equipped with IIDs experience a significant reduction in the rate of repeat drunk driving offenses. This statistic highlights the efficacy of IIDs in curbing the dangerous behavior associated with drunk driving.

In order to reinstate a convicted DUI driver’s license, the installation of an IID may be a court-ordered requirement. Once the device is installed, its sophisticated sensors meticulously detect any traces of alcohol in the breath. This intelligent technology is an important safeguard, ensuring drivers are accountable and responsible for their actions.

Reduction in Drunk Driving Incidents and Fatalities

The presence of IIDs on the road has been proven to have a substantial impact on reducing drunk driving incidents and related fatalities. By effectively deterring individuals from driving while impaired, IIDs are a powerful tool in preventing tragic accidents caused by alcohol-related impairment.

Positive Impact on Driver Behavior and Attitude

Ignition Interlock Devices not only prevent drunk driving incidents but also positively impact driver behavior and attitude toward alcohol consumption. By requiring drivers to provide breath samples before starting their vehicles, IIDs constantly remind them of the potential consequences of driving under the influence. This heightened awareness can significantly shift driver habits, promoting responsible alcohol consumption and fostering safer road environments.

Potential Legal and Social Advantages for DUI Offenders

Implementing IIDs can offer legal and social advantages for individuals convicted of DUI offenses. In Rhode Island, some offenders are eligible to receive a hardship license that allows them to drive to and from work, school or medical appointments. To qualify, offenders must install an ignition interlock device from an approved provider and keep it installed for three months to a year following their suspension period. By complying with this requirement, individuals can demonstrate their commitment to safe driving practices, potentially leading to reduced penalties or a shorter suspension period. Moreover, by actively engaging in rehabilitation and demonstrating a genuine willingness to change, offenders may find themselves on a path toward regaining public trust and acceptance.

Implementing the IID Requirement

Various service providers offer installation, calibration, and maintenance services for IIDs to ensure widespread access and availability. Companies like Intoxalock and Lifesafer specialize in providing reliable and efficient IID solutions. These service centers play a crucial role in supporting individuals required to have an IID installed and answering all questions related to the device.

Integrating IIDs into vehicles' ignition systems is a seamless process designed to be user-friendly and convenient. While the exact steps may vary slightly, the general procedure involves visiting an authorized IID installer, installing the device, and receiving thorough instructions on its usage and maintenance. Regular calibration and check-ups are necessary to ensure the device functions optimally and provides accurate readings.

Get Back on the Road with an IID Installation

Ignition Interlock Devices play a vital role in safeguarding roads and lives against the devastating consequences of drunk driving. Through their effective functionality, IIDs enhance road safety, reduce drunk driving incidents, and positively influence driver behavior. By complying with IID requirements, individuals can regain their driving privileges and contribute to a safer society.

If you or someone you know is facing a DUI conviction or has questions regarding Ignition Interlock Devices, do not hesitate to contact Rhode Island DUI Attorney Ann Sheeley at 401-619-5555 or by emailing We offer a free consultation and can provide guidance, answer your questions, and help you take the necessary steps to get back on the road safely.

Remember, every effort counts in the fight against drunk driving. We can create a safer and more responsible driving culture, one breath at a time.

About the author

Lauren McDowell is the Content Marketing Strategist for Interlock Install, a Phoenix-based company that performs the installations, service appointments, and removals for ADS Interlock. When not writing, she attends book clubs and enjoys reading stories to her kids.


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