An IAA driver's license is a restricted license issued in some states to people whose regular license has been suspended

IAA stands for "Ignition Interlock Restricted License" or, in some states, "Interlock Restricted License." It is not a separate class of license like a commercial or motorcycle endorsement. Instead, it is a modified version of your regular driver's license that comes with specific restrictions and requirements — most notably, you must have an ignition interlock device installed in your vehicle.

The device is a breathalyzer that connects to your car's ignition system. Before the engine will start, you blow into the device. If it detects alcohol above a set threshold (usually 0.02 BAC), the car will not start. You must also provide breath samples while driving, at random intervals, to prove you remain sober.

An IAA license is typically issued after a DUI or DWI conviction, or sometimes after a license suspension for refusing a breath test. The exact rules, duration, and requirements vary significantly by state — what applies in one state may not explore in another.

Key Takeaways

  • An IAA license allows limited driving while your regular license is suspended, but only if you install and maintain an ignition interlock device in your vehicle.
  • You cannot drive any vehicle without an interlock device installed, even if you own multiple cars or need to borrow one.
  • The cost of the device, installation, and monthly monitoring typically falls on you, ranging from several hundred to over a thousand dollars depending on your state and how long you must use it.
  • Insurance companies treat IAA licenses as high-risk, and your rates will increase significantly; some insurers will not cover you at all, and you may need an SR22 filing in addition to the interlock requirement.
  • Each state sets its own rules for how long you must use the interlock, what BAC threshold triggers a lockout, and whether you can drive to work, school, or only specific locations.

When you receive an IAA license and what it allows you to do

An IAA license is usually issued by your state's Department of Motor Vehicles or equivalent agency after a DUI conviction, a DWI conviction, or a license suspension for refusing a chemical test. The court or the DMV will notify you of the terms — which typically include the start date, the duration of the interlock requirement, and any driving restrictions.

With an IAA license, you can drive a vehicle that has an approved ignition interlock device installed. The specific places you can drive depend on your state's rules. Some states allow unrestricted driving (as long as the interlock is in the car), while others limit you to driving to work, school, medical appointments, or court-ordered programs. A few states require you to carry a special permit or letter from the DMV proving you are allowed to drive under these restrictions.

You cannot drive anyone else's vehicle, rent a car, or use a vehicle without the interlock installed — even for a short trip. If you are caught driving a vehicle without the device, you face additional criminal charges and license suspension.

How ignition interlock devices work and what they cost

An ignition interlock device is installed by a certified vendor approved by your state. The installation typically takes 30 minutes to an hour and costs between $100 and $300, depending on your state and the vendor. You are responsible for paying this cost.

Once installed, the device requires you to provide a breath sample before starting the engine. If your BAC is below the threshold (usually 0.02), the car starts normally. If your BAC is at or above the threshold, the ignition locks and the car will not start. The device records all attempts and results, which are downloaded at your monthly monitoring appointment.

Monthly monitoring costs between $50 and $100 per month in most states. During these visits, a technician downloads the device's data, checks for tampering, and performs maintenance. If the device detects that you have attempted to drive with a BAC above the threshold, or if it detects signs of tampering, the monitoring company reports this to the court or DMV, which can result in extended interlock requirements or additional penalties.

The total cost of an interlock program typically ranges from $1,000 to $2,500 over the course of a year, though this varies by state and by how long you are required to use the device.

How an IAA license affects your car insurance

An IAA license is a major red flag to insurance companies. You are classified as a high-risk driver, and your insurance rates will increase substantially — often by 50% to 100% or more, depending on your insurer and your driving history. Some insurers will not cover you at all if you have an active interlock requirement.

In addition to higher rates, many states require you to file an SR22 (or SR-22) form with your state's DMV. This is a certificate of financial responsibility that your insurance company files on your behalf. It proves to the state that you carry the minimum required liability insurance. If your policy lapses or is cancelled, your insurer must notify the DMV, which can result in automatic license suspension.

You must maintain continuous coverage without any lapses. Even a one-day gap in coverage can trigger a suspension and additional penalties. Shop around before purchasing a policy — rates vary widely between insurers, and some specialize in high-risk drivers.

How long you must use an ignition interlock device

The duration of the interlock requirement is set by your state's law and, in some cases, by the court that sentenced you. It typically ranges from 6 months to 3 years, depending on whether this is your first offense, whether you refused a breath test, and your state's specific statutes.

In many states, you can reduce the interlock period if you maintain a clean record — meaning no failed breath tests, no tampering, and no new violations — for a certain period. Some states allow you to petition the court to remove the interlock early if you meet these conditions. Other states have a fixed period with no early removal option.

Once you have completed the required interlock period and met all other conditions (such as paying fines, completing a DUI education program, or serving any jail time), you can request that the interlock be removed and your regular license be reinstated. The removal process typically takes a few weeks and may involve a final inspection by the monitoring company.

Differences between an IAA license and a suspended license

A suspended license means you cannot legally drive at all. You cannot drive to work, to the store, or anywhere else. Driving on a suspended license is a criminal offense that can result in additional fines, jail time, and a longer suspension.

An IAA license, by contrast, allows you to drive under specific conditions — primarily, that your vehicle has an ignition interlock device installed. It is a way for states to balance public safety (by preventing impaired driving) with the practical need for people to get to work, school, and medical appointments.

If you are offered an IAA license as an alternative to a full suspension, it is generally the better option — it allows you to maintain employment and meet your obligations. However, it comes with significant costs and restrictions, and you must comply strictly with all requirements.

What happens if you violate the terms of an IAA license

Violations of an IAA license can result in serious consequences. If you drive a vehicle without an interlock device installed, you face criminal charges for driving with a suspended license. If the interlock device detects a failed breath test or signs of tampering, the monitoring company reports this to the court or DMV, which can extend your interlock requirement, suspend your license entirely, or result in additional criminal charges.

If you miss a monthly monitoring appointment, the device may be flagged as non-compliant, and your license can be suspended. If you allow your insurance to lapse, your SR22 filing will trigger an automatic suspension. Any new traffic violation or criminal charge can also result in the loss of your IAA license and a return to full suspension.

Compliance is essential. Keep all monitoring appointments, maintain your insurance without gaps, do not attempt to tamper with or circumvent the device, and follow all driving restrictions set by your state.

Frequently Asked Questions

Can I drive someone else's car if I have an IAA license?

No. You can only drive a vehicle that has an approved ignition interlock device installed. You cannot drive a borrowed car, a rental car, or anyone else's vehicle, even if the owner gives you permission. If you need to drive multiple vehicles, each one must have its own interlock device installed.

What if I cannot afford the ignition interlock device?

Some states offer reduced fees or payment plans for people with financial hardship. Contact your state's DMV or the monitoring company to ask about hardship waivers or sliding-scale fees. Some non-profit organizations also provide information. However, if you cannot install the device, you cannot legally drive under an IAA license, and your license will remain suspended.

Does an IAA license show up on a background check?

An IAA license itself does not appear on most background checks, but the underlying DUI or DWI conviction does. Employers, landlords, and other organizations that conduct background checks will see the conviction, not the interlock status. Some employers may have policies against hiring people with DUI convictions regardless of whether they have an IAA license.

Can I get my regular license back before the interlock period ends?

In most states, no — you must complete the full interlock period set by law or the court. However, some states allow you to petition the court for early removal if you have maintained a clean record for a certain period. Contact your state's DMV or the court that handled your case to ask whether early removal is an option in your situation.

What if I move to a different state while I have an IAA license?

Each state has its own rules about interlock requirements and license suspension. When you move, you will need to transfer your license to your new state's DMV. Your new state may recognize your interlock requirement and allow you to continue under similar terms, or it may have different rules. Contact your new state's DMV before you move to understand what will happen to your license status.