📅 2026 Update: Changes in Ignition Interlock Laws and Services

Since the original article was published, several important updates have occurred regarding ignition interlock devices and their implementation in the U.S. These updates include new legislative proposals, challenges faced by service providers, and changes in costs associated with these devices. The earlier article continues further down the page for more background information.

🚗 New Legislative Proposals

In May 2026, lawmakers in North Carolina proposed a bill that would require ignition interlock devices for all drivers convicted of driving while impaired. This expands the previous law that mandated these devices only for repeat and severe offenders. If passed, this could significantly increase the number of drivers using interlock devices across the state.

🔒 Cybersecurity Challenges

A significant cyberattack on Intoxalock in March 2026 impacted services for customers in multiple states. The attack disrupted device calibrations, leaving many drivers unable to start their vehicles. This incident has raised concerns about the reliability of device providers, highlighting the need for better security measures.

💰 Current Costs of Ignition Interlocks

The costs associated with ignition interlock devices have remained relatively stable. Installation fees typically range from $70 to $150, while monthly monitoring fees can vary between $50 and $120. Over a 12-month program, total costs can range from $1,000 to $2,400, excluding installation and calibration fees.

🛠️ Device Functionality

Ignition interlock devices require drivers to blow into a mouthpiece to start their vehicle. If the breath-alcohol reading exceeds the programmed limit, the vehicle will not start. Additionally, the device may prompt random "rolling retests" while driving, which must be completed to maintain compliance.

📌 Key Points

  • 🚦 North Carolina proposed a bill for all impaired drivers to install interlock devices.
  • 🛡️ Cybersecurity incidents have disrupted services, affecting many drivers.
  • 💵 Installation fees range from $70 to $150; monthly fees are $50 to $120.
  • 🚗 Devices prevent vehicle operation if alcohol limits are exceeded.
  • 🔄 Random retests while driving ensure ongoing compliance with ignition interlock laws.

💡 Tips for Using Ignition Interlock Devices

Review the details of your situation with your attorney to ensure compliance with local laws.

📝 Understand Installation Requirements

Before installing an ignition interlock device, check your state’s specific requirements. Some states, like Arizona, have an application process that must be completed before installation.

⏰ Know Calibration Schedules

Calibration is required every 30 to 90 days, depending on your state. Be sure to schedule these visits to avoid penalties, as missed calibrations can lead to complications with your license.

📍 Keep Track of Compliance

In states like Washington, compliance rates have been low, with only 41% of drivers complying with interlock requirements. Staying informed about your obligations can help you avoid legal issues.

💬 Use Customer Support

If you encounter issues with your ignition interlock device, use the customer support offered by your service provider. Many companies, like Intoxalock, offer 24/7 support to address concerns quickly.

🎯 Explore Financial Assistance

In Washington State, resources are available for individuals struggling with the costs of ignition interlock devices. The Washington State Patrol provides contacts and information about affordability programs.

❓ Frequently Asked Questions

❓ What happens if I don’t install the device in time?

In Arizona, failing to install the device within 30 days of conviction can lead to immediate suspension of driving privileges and possible extensions of the original interlock requirement.

🌍 Are ignition interlock devices the same in every state?

No, the requirements for ignition interlock devices can vary by state, including installation procedures, compliance schedules, and eligibility rules.

🕒 How long does installation take?

Typically, installation of an ignition interlock device takes about 90 minutes. Technicians use vehicle-specific wiring diagrams to properly integrate the device into the ignition system.

📅 What should I do if I move while using an interlock device?

If you relocate, you must submit an IID Vendor's Information Change form and a new application to ensure that your device service is properly maintained in your new location.

💸 Are there financial assistance programs available?

In Washington State, resources are available for individuals needing financial help with ignition interlock devices. Programs can assist with the costs involved in using these devices.

🔧 How often do I need to have my device calibrated?

Calibration is required every 30 to 90 days, depending on your state. Regular calibration ensures that the device functions correctly and maintains compliance with legal requirements.

⚖️ Recent Cases Related to Ignition Interlock Devices

Recent court rulings have addressed various issues surrounding ignition interlock devices, including compliance and legislative requirements.

For more updates on recent rulings, check out more rulings on the news page.

End of October 2026 Update






Ignition Interlock Devices or IID’s have been the topic of widespread discussion and debate. For the most part the general population approves them and confirms that they assist in preventing drunk drivers from going out on our roadways and putting our lives in danger. A few people however, tend to argue that the device is unsafe to the driver (mainly people who have had the device court ordered.)


Ignition Interlock Prevalence Implementation

 

Nobody likes to get in trouble, or be made an example of, so if someone that was convicted of DUI has to drive around with an electronic device telling them when they can or can’t drive their vehicle it’s going to bring some conflict. The people that end up with the device in their car argue that it is unsafe to their driving, and interferes with safety. Some have argued in court that the device allowed them to drive drunk (after having someone else provide a breath sample) and that it led them to crash. Others in the same situation stated that the device let them inaccurately start their car and when providing the next sample they lost control and crashed.  


The same was said about people trying to provide samples during the rolling test. Later these people were found to be drunk, and attempted to bypass the system. Every measurement is going to have a window of inaccuracy but because of the chemical fuel cell in this device, it works in providing extremely accurate samples when dealing with alcohol. Just like with every technology though, people will try to blame its possibility of inaccuracy on their attempt to bypass it. For the most part, this has failed, which has maintained the credibility of the product. IID’s are used widely across the United States and Canada either as an alternative to harsher sentencing, or in addition to it. 


The device has helped keep an insurmountable amount of car engines off, when those cars otherwise would have been out of the roadways. If that was the case, who knows what accidents they could’ve caused, what lives they could have taken, to think about that makes people more grateful that such a device exists.  The ability for the enforcers to monitor all the data of activity from the device during calibration has proved as an effective tool to keep offender from trying to tamper with, or bypass the device. 

By checking statistics on the web sites of the manufacturers of IID’s, one can see the incredible number of people that these devices have kept off the road. IID’s can be seen as an electronic form of law enforcement, for when a police officer is not at the right place at the right time. This provides added assistance to them for catching DUI offenders and preventing them from driving any further, in addition to DUI checkpoints. 


IID’s helpful to our society, people, courts, law enforcement agencies, and the lives of people. These little devices make a huge impact on how we try to prevent crime from occurring and are successful in doing so.