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Learn more about Ignition interlock devices in your state

Everything You Need to Know About Ignition Interlock Devices

Everything You Need to Know About Ignition Interlock Devices

Most people who have an ignition interlock device understand the basics. The devices require drivers with an IID installed to take a Breath Alcohol Content (BrAC) test before they can start the car. If they have alcohol in their system, they will fail and be unable to drive.

Many DUI offenders and voluntary IID users have questions about the device that extend beyond its practical function. Since the device is installed in their vehicle, it will become a part of their daily life. If you are having an IID installed, read on to learn more about some things you may not know about the devices.

Common Questions About Ignition Interlock Devices

  • Does everyone who drives the vehicle with an IID installed need to use the device?
  • Yes, once the ignition interlock is installed, it will not allow anyone to start the vehicle without first passing a breathalyzer test. If you share a vehicle, all users need to use the device properly. Failures are still recorded and the offender is responsible for all test results, no matter who is driving.
  • Can installing an ignition interlock help me bypass my suspension?
  • Yes, many states allow offenders to regain driving privileges during their suspension period if they agree to install an ignition interlock device. Often, offenders who wish to drive must obtain a restricted license, hardship license, or restricted permit (names vary by state). In many states, there are restrictions on where and when the offender can drive, as well. Some states also require offenders to wait a certain amount of time into their suspension before they are eligible. Intoxalock state specialists can help determine when you might be able to get back on the road.
  • Can an ignition interlock device be installed in my work vehicle or a car I don’t own?
  • Yes, if you don’t own the vehicle but drive it for work, a device will need to be installed. States have varying criteria for how to achieve this, but typically you will need written permission from the owner or for the owner to accompany you to your installation appointment. An Intoxalock state specialist can help you learn what to do. There is one exception, and that is for commercial driver’s license (CDL) holders. Most states will permanently revoke an offender’s CDL following a DUI conviction, so there would be no need to install an IID in a commercial vehicle.
  • Can the IID be removed without damaging my vehicle?
  • Yes! When it’s time for removal, you will bring your vehicle to an approved Intoxalock service center. Technicians there will remove your device for you, and ensure your car is not affected.

Need to get an IID installed? Intoxalock is the no. 1 IID brand in the U.S. with more than 4,000 locations - more than any other provider. You will be able to find a location near you to have a low cost interlock installed.

Questions About the Interlock Process

Family members and friends of an offender also have questions about how the device works. If you want to help a loved one, look below for answers to your questions.

  • Do interlock devices prevent repeat offenses/recidivism?
  • Yes, they can. A California DMV study of four IID pilot programs revealed that interlocks were 74 percent more effective in reducing repeat DUI offenses than license suspension alone for first offenders. A National Transportation Safety Board study called “Highway Special Investigation Report Wrong-Way Driving” said that research evaluation of ignition interlock programs over the last two decades (1992-2012) found that IIDs are effective in reducing recidivism rates among offenders.
  • Are the laws and regulations around interlock devices the same throughout the United States?
  • No, the laws and requirements vary by states. Not every state requires IIDs for first offenders, for example. If you are unsure about your state’s requirements, Intoxalock’s state specialists can help answer any questions. The court should also notify you of your specific penalties and requirements.
  • Are IIDs used nationwide?
  • Yes, although as mentioned, each state sets their own criteria, regulations, and other rules around the process. This includes the type of device approved, length of time, and more. Intoxalock state specialists know the rules in every state, and they can help guide you through the process and ensure you’re following all state regulations.
  • Can I get a low cost interlock even if not required to by law?
  • Yes, you can voluntarily install an ignition interlock device if you choose to, and often at a discounted rate. Often, those who struggle with sobriety or their family members will opt to get a device voluntarily to prevent a DUI or repeat DUI. An Intoxalock specialist can help answer any questions you have.
  • How successful are ignition interlocks at preventing drunk driving?
  • In addition to the recidivism statistics published in the studies referenced above, Intoxalock ignition interlocks prevented 216,298 attempted vehicle starts in 2020. These stops prevented those drivers from driving under the influence of alcohol, keeping the roads safer for all.

If you have more questions, Intoxalock specialists are happy to help. You can also read reviews from actual customers on Trustpilot, to see what people are saying.

Need Help Today? Intoxalock is Here

An Intoxalock state specialist will call you and answer any questions you have about the process. all 833-623-0200 to speak with a representative now, or fill out this form.



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