IID stands for Ignition Interlock Device
An IID on your Florida driver's license means you are required to install and use an ignition interlock device in any vehicle you drive. This device measures the alcohol content in your breath before the engine will start. If the device detects alcohol above a set limit, the vehicle will not start.
The IID requirement appears on your license as a restriction code. It is not optional — it is a court-ordered or DMV-mandated condition of your driving privilege. You must have the device installed before you can legally drive, and you must keep it installed for the entire period the court or DMV specifies.
The device itself is about the size of a cell phone and connects to your vehicle's ignition system. You blow into it before starting the car, and it records the result. Some devices also require you to provide breath samples while driving, at random intervals.
Key Takeaways
- An IID restriction on your Florida license means you must install an ignition interlock device in any vehicle you operate.
- The device prevents your car from starting if it detects alcohol in your breath above the legal threshold.
- IID requirements typically result from a DUI conviction or refusal to take a breath test, and the length of the requirement varies by case.
- You pay for the device installation and monthly monitoring fees yourself, which usually range from $60 to $150 per month depending on the provider.
- Tampering with, removing, or bypassing the device is a separate criminal offense in Florida.
Why the IID Requirement Appears on Your License
Florida courts impose an IID requirement as a condition of a restricted driver's license after a DUI (driving under the influence) conviction. The device is meant to prevent you from driving while impaired and to monitor your sobriety during the period when your full driving privilege is suspended.
You may also receive an IID requirement if you refused to take a breath or blood test during a DUI stop. Florida's implied consent law treats a refusal similarly to a failed test in terms of penalties.
The IID requirement is not permanent. The court sets a specific duration — often six months to one year for a first offense, longer for repeat offenses. Once that period ends and you meet all other conditions of your restricted license, you can petition the court to have the restriction removed from your license.
How Long You Must Use the Device
The length of your IID requirement depends on your DUI history and the specifics of your case. For a first DUI conviction in Florida, the minimum period is usually six months. If you have prior DUI convictions, the requirement extends to one year or longer.
Some courts allow you to reduce the IID period if you maintain a clean record during the required time — meaning no violations, no failed breath tests, and no tampering with the device. You would need to file a motion with the court to request early removal.
The clock starts from the date the court orders the device installed, not from the date of your arrest or conviction. Keep documentation of when your requirement began so you know when you become may be able to access for removal.
Who Installs and Monitors the Device
You must use a service provider that is certified by the Florida Department of Highway Safety and Motor Vehicles. The state maintains a list of approved vendors, and you can choose from among them. Common providers include SCRAM Systems, Draeger, and Alcohol Monitoring Systems, though the list changes and varies by region.
When you contact a provider, they will schedule an installation appointment at their office or sometimes at your home or workplace. The installation takes about an hour. The technician will explain how to use the device, what the monthly costs are, and what happens if you fail a test or miss a scheduled appointment.
After installation, you must visit the provider's office monthly (or as directed by your specific device) so they can read the data from the device and review your breath test results. These visits are mandatory. Missing an appointment or failing to maintain the device can result in additional criminal charges.
What the Monthly Costs Are
You are responsible for paying all costs associated with the IID. Installation typically costs between $100 and $300, depending on the provider and whether they come to you or you go to them. Monthly monitoring and lease fees usually range from $60 to $150 per month.
Some providers offer payment plans if you cannot pay the full amount upfront. However, the state does not cover these costs, and neither does your insurance. The expense is yours alone.
If you fall behind on payments, the provider will report this to the court, and you may face additional penalties or loss of your restricted driving privilege. Staying current on payments is essential to keeping your license valid.
What Happens If You Fail a Breath Test
If the device detects alcohol in your system above the legal limit, it records a "fail" and will not allow the engine to start. The device also logs the date, time, and result. At your next monthly visit, the provider downloads this data and reports it to the court.
A single failed test does not automatically result in arrest, but repeated failures or a pattern of violations can lead the court to revoke your restricted license and impose additional penalties. The court may extend your IID requirement, increase fines, or order additional DUI education programs.
If you know you will need to drive and are concerned about a failed test, do not drive. Call a taxi, rideshare service, or ask someone else to drive. The device is designed to catch impaired driving, and the consequences of failing tests accumulate.
Tampering, Removal, and Other Violations
Removing, disabling, or tampering with the IID is a separate criminal offense in Florida, distinct from your original DUI charge. This includes asking someone else to blow into the device for you (called a "rolling start" or "circumvention"), disconnecting the device, or attempting to bypass it.
If you are caught tampering with the device, you face criminal charges, fines, and likely revocation of your driver's license. The court may also extend your IID requirement or impose jail time. The device is monitored and reports tampering attempts automatically.
If your vehicle breaks down or you need to have work done on the ignition system, contact your IID provider first. They can temporarily remove the device and reinstall it after the repair. This protects you from being accused of tampering.
How to Get the IID Restriction Removed
Once you have completed the court-ordered IID period without violations, you can file a motion with the court to remove the restriction from your license. You will need to provide proof from your IID provider showing that you completed the full term and maintained a clean record.
The court will review your motion and may grant it without a hearing, or it may require you to appear. If approved, the court will issue an order to remove the IID restriction, and you will take that order to the Florida DMV to update your license.
Removing the restriction from your license does not happen automatically. You must take the initiative to file the motion and follow through with the DMV update. Many people forget this step, so mark your calendar for when your IID period ends.
Frequently Asked Questions
Can I drive someone else's car without an IID?
No. Your restricted license requires an IID in any vehicle you operate, regardless of who owns it. If you drive a car without the device installed, you are driving with a suspended or invalid license, which is a separate criminal offense. You must have the device in every vehicle you drive.
What if I cannot afford the monthly IID fees?
Contact your IID provider about payment plans or hardship options. Some providers offer reduced rates or extended payment schedules. You can also ask the court about your options, though the court cannot waive the requirement itself. Falling behind on payments will result in license suspension and court penalties.
Does the IID show on my license when I renew it?
Yes, the IID restriction will appear on your license renewal until the court removes it. When you renew your license, the DMV will print the same restriction code unless you have filed a motion and received a court order removing it. Always bring that court order to your renewal appointment.
Can I get the IID requirement reduced or removed early?
Some courts allow early removal if you maintain a perfect record during the IID period — no failed tests, no violations, and no missed appointments. You would file a motion with the court requesting early termination. The judge has discretion to grant or deny this request based on your specific case.
What if I move out of Florida while on an IID requirement?
Your Florida IID requirement follows you. If you move to another state, you must still comply with the Florida court order. You will need to find an approved IID provider in your new state and maintain the device there. Failure to do so is a violation of your Florida court order and can result in additional charges.