Getting a DUI in South Carolina brings a lot of changes—and one of the biggest is the requirement to install an ignition interlock device (IID). Thanks to the state’s all-offender IID law, even first-time DUI offenders are now expected to use one. It’s not just a matter of plugging in a device and driving off; there are rules to follow, appointments to keep, and real consequences for slipping up.
If you’re facing this situation, understanding exactly what’s expected of you can save you time, money, and added frustration down the line. And if anything feels unclear, it’s always smart to talk to someone who knows the system. The team at Truslow & Truslow, P.A. is here to help you make sense of the requirements and stay on track.
What Is South Carolina’s All-Offender IID Law?
South Carolina’s all-offender ignition interlock device (IID) law has changed how DUI cases are handled across the board. In the past, IIDs were mainly required for repeat offenders or drivers with particularly high blood alcohol levels. That’s no longer the case. Now, anyone convicted of a DUI, including first-time offenders, is required to install an IID before they can legally drive again.
So, what exactly does that involve? The IID is a small device installed in your vehicle that checks your breath for alcohol before the car will start. In some cases, it may prompt additional tests while you’re driving. The goal is to prevent repeat offenses and keep impaired drivers off the road, but it also means drivers need to follow strict rules to stay compliant.
This law applies whether you were convicted after a trial or entered a guilty plea. If you’re navigating the process, understanding how this requirement works and what’s expected from you is the first step in moving forward and eventually getting back to unrestricted driving.
How the IID Program Works
If you’re required to install an ignition interlock device (IID), there’s a set process to follow. First, you’ll need to choose a provider approved by the state to install the device in your vehicle. While installation is usually quick, you’ll be responsible for the cost—this includes the initial setup, monthly monitoring fees, and regular maintenance.
The device itself is simple in concept. Before starting your car, you’ll need to blow into a mouthpiece. If it detects alcohol above a certain limit, the engine won’t start. Some systems also require retests while you’re driving to make sure you’re staying alcohol-free.
You’ll also have to return regularly for calibration and to upload your driving data. These check-ins are important—not just for keeping the device working properly, but also for staying in good standing with the program. Skipping appointments or trying to tamper with the device can lead to more time with the IID or other penalties.
While the process can feel like a hassle, sticking to the rules will help you move through the program faster and get back to unrestricted driving.
Compliance Requirements
After you get your ignition interlock device (IID) installed, following the rules becomes just as crucial as having the device itself. You’ll need to show up for regular service appointments every month or two where your provider checks the device, calibrates it, and downloads the data it’s been recording.
Staying compliant means more than just showing up, though. Things like missed breath tests, failed readings, or trying to bypass the system can all count as violations. Even a single error can result in more time in the program or a license suspension. The best way forward? Keep an eye on your appointments, stick to the instructions, and don’t try any tricks. Staying on top of it all makes it much easier to move through the program without added stress.
Truslow & Truslow, P.A. – Helping You Navigate What Comes Next
Dealing with South Carolina’s IID rules isn’t always straightforward—but you don’t have to figure it all out on your own. At Truslow & Truslow P.A., we’ll guide you through each step, answer your questions, and ensure you stay compliant with the law. Whether you’re just beginning or encountering obstacles along the way, feel free to contact us. We’re ready to help you move forward with confidence.