📅 2026 Update: Changes in Ignition Interlock Device Regulations and Costs

Since the original article was published, there have been significant updates regarding ignition interlock devices (IIDs). These changes include new legislative proposals and ongoing cybersecurity issues affecting service providers. The information below highlights the most important updates related to interlock devices, while the earlier article continues further down the page.

🚦 New Legislation in North Carolina

On May 13, 2026, North Carolina lawmakers proposed a bill to expand the requirement for ignition interlock devices. Previously, the law applied only to repeat offenders and those with severe cases. If passed, all drivers convicted of driving while impaired would need to install an IID, marking a significant shift in policy.

🔒 Cybersecurity Issues

In March 2026, Intoxalock faced a cyberattack that impacted services for thousands of drivers across 46 states. The attack disrupted device calibrations, leaving many unable to start their vehicles. This incident highlights the vulnerability of interlock device systems and raises concerns about customer service reliability.

💰 Costs of Ignition Interlock Devices

The costs associated with ignition interlock devices have remained relatively stable. Installation fees still range from $70 to $150. Monthly monitoring fees typically fall between $50 and $120, translating to about $2 to $4 per day.

Overall, annual costs for a 12-month program can range from $1,000 to $2,400, excluding installation and calibration fees.

📄 Application and Processing Updates

In Arizona, individuals must submit an Ignition Interlock Device Application to the Motor Vehicle Division. Processing times can take up to two weeks after submission. In Washington State, document processing may take 7-10 business days, with incomplete requests experiencing longer delays.

📌 Key Points to Remember

  • 📜 North Carolina may require IIDs for all impaired driving convictions.
  • 🔐 Intoxalock's cyberattack affected service across 46 states.
  • 💵 Installation fees: $70 to $150; monthly fees: $50 to $120.
  • ⏰ Arizona's application processing may take up to two weeks.
  • 📝 Washington State documents may take 7-10 business days to process.

💡 Tips for Managing Your Ignition Interlock Device

Review the details of your situation with your attorney. Understanding your obligations and options is crucial for compliance.

🛠️ Installation Considerations

When planning to install an ignition interlock device, research local service providers. Look for companies with good reviews and a track record of reliable service. Proper installation is vital for the device's effectiveness.

📅 Scheduling Calibration Visits

Remember that calibration visits are required every 30 to 90 days, depending on your state. Failing to schedule these appointments can lead to penalties or device malfunctions.

💵 Budgeting for Costs

Be aware of the total costs associated with the ignition interlock device. Include installation, monitoring, and calibration fees in your budget to avoid financial surprises.

📞 Customer Support

If you encounter issues with your interlock device, contact customer support promptly. Knowing how to reach your service provider can save time and prevent further complications.

📍 Understanding Compliance Rules

Familiarize yourself with the compliance requirements in your state. Non-compliance can lead to extended driving restrictions, so staying informed is essential.

❓ Frequently Asked Questions

❔ What happens if I miss a calibration appointment?

Missing a calibration appointment can lead to penalties, including potential suspension of your driving privileges. It is essential to adhere to the required schedule to avoid complications.

🚗 Can I drive without an ignition interlock device after a DUI?

If required by law, you must install and maintain an ignition interlock device for the specified duration. Driving without one can result in additional penalties.

📝 How do I report issues with my ignition interlock device?

If you experience problems with your ignition interlock device, contact your service provider's customer support immediately. They can assist you in resolving the issue or scheduling repairs.

📅 Is there a grace period for installing my ignition interlock device?

In Arizona, you have 30 days from the date of conviction to install the device and provide verification to the Motor Vehicle Division. Failing to do so may result in immediate suspension of your driving privileges.

🔍 How can I find a reliable ignition interlock service provider?

Research local service providers and read customer reviews. Trustpilot scores can offer insights into user experiences and help you choose a reliable company.

📞 What should I do if my ignition interlock device malfunctions?

If your device malfunctions, contact your service provider’s support team right away. They can guide you on next steps and ensure your device is functioning properly.

⚖️ Recent Court Cases Related to Ignition Interlock Devices

There have been recent rulings concerning ignition interlock devices that affect compliance and regulations. These cases provide important context for understanding how laws are enforced in this area.

Explore more recent rulings in the news section for additional insights. more rulings on the news page.

End of October 2026 Update





The ignition interlocking device has proven to be quite effective in deterring drunk driving. The ignition interlock device installation may be ordered by the state courts as part of the sentencing or punishment when a person is convicted of a DUI. The interlock device is meant to render an automobile inoperable by blocking its ignition system when a person has consumed alcohol. Even though this may prove to be a beneficial method to stop drinking and driving, the interlock device cost is usually something that the convicted individual most provide for out of pocket. 


The interlock device cost will depend on the total amount of time in which the device must be installed and operable in a person's vehicle. Usually, the device itself is not purchased, but rather rented for the duration of the imposed time period. Interlock device cost will vary depending on the length of the term. However, the interlock device cost in terms of the rental fees will usually range between $70 and $100 per month plus tax. 

How Much Is An Interlock Device


Furthermore, the costs of the device are further increased by the cost of the interlock device installation. Interlock device installation will also vary in terms of cost, though it will typically range between $100 and $200. Alone, the interlock device cost for rental and installation can incur some pretty high financial considerations. One must also keep in mind that there will be extra costs for the maintenance of the device that usually is not factored in.