South Carolina is cracking down on drunk driving. Hard. The state has one of the highest impaired-driving death rates in the country. Lawmakers are taking it seriously, and so should you.
Whether you’ve been pulled over or just want to know your rights, this guide covers everything. We’ll break down the laws, the penalties, and what you should do if you’re ever in this situation.
What Is a DUI in South Carolina?
DUI stands for Driving Under the Influence. Under South Carolina Code Section 56-5-2930, it means driving a vehicle while impaired by alcohol, drugs, or both. Your ability to drive must be “materially and appreciably” affected. That’s legal language for: noticeably worse at driving than normal.
For most drivers 21 and older, the legal limit is a blood alcohol concentration (BAC) of 0.08% or higher. Commercial drivers have a stricter limit of 0.04%. And if you’re under 21? Even a 0.02% BAC can get you in serious trouble.
Pretty straightforward. But the penalties? Those get complicated fast.
South Carolina’s BAC Limits at a Glance
There are actually two related charges in South Carolina. The first is DUI, which focuses on whether your driving was actually impaired. The second is DUAC, which stands for Driving with an Unlawful Alcohol Concentration. DUAC is based purely on your BAC number, regardless of how you were driving.
Both charges carry the same penalties. Think of DUAC as the “numbers only” version of DUI. If your BAC was at or above 0.08%, you can be charged with DUAC even if you seemed fine at the wheel.
Wondering which one you’d face? That depends on the evidence the officer collects. Often, both charges are filed at once.
First Offense DUI Penalties
Okay, this part is important. Even a first DUI in South Carolina is no joke.
The penalties depend heavily on your BAC level at the time of arrest. If your BAC was below 0.10%, you face a fine of $400, up to 30 days in jail, and a six-month license suspension. First-time offenders may do 48 hours of community service instead of jail time.
If your BAC was between 0.10% and 0.15%, the fine goes up to $500. Jail time stays at up to 30 days. If your BAC was 0.16% or higher, the fine jumps to $1,000 and you face 30 to 90 days in jail, with no option to skip the mandatory minimum.
All first-time offenders must also complete the Alcohol and Drug Safety Action Program (ADSAP). That’s a state-approved substance abuse evaluation and treatment program. You pay for it. You complete it. You don’t skip it.
The “All Offender” IID Law
Hold on, this part is important. In May 2024, South Carolina passed what’s known as the “All Offender Law.” It changed everything for first-time DUI convictions.
Under this law, even first-time offenders must now install an Ignition Interlock Device (IID) on their vehicle before getting their license back. An IID is basically a breathalyzer wired into your car. If it detects alcohol on your breath, the car won’t start.
Yes, really. Even for a first offense. This is a big deal and a lot of people don’t know about it yet.
Second Offense DUI Penalties
Now here’s where things get serious. A second DUI within 10 years means much harsher consequences.
If your BAC was below 0.10%, you face five days to one year in jail and fines ranging from $2,100 to $5,100. If your BAC was between 0.10% and 0.15%, jail time runs from 30 days to two years and fines go from $2,500 to $5,500. If your BAC was 0.16% or higher, you’re looking at 90 days to three years in jail and fines from $3,500 to $6,500.
A second offense also means a longer IID requirement of two years. Your license suspension increases too. And unlike a first offense, there’s no option to swap jail time for community service at the low-BAC tier.
Think of it like a traffic ticket on steroids, but way more serious.
Third Offense DUI Penalties
A third DUI conviction is a felony in South Carolina. Let that sink in.
If your BAC was below 0.10%, the penalty is 60 days to three years in jail and fines from $3,800 to $6,300. A BAC between 0.10% and 0.15% means 90 days to four years in prison and fines from $5,000 to $7,500. With a BAC of 0.16% or higher, you face six months to five years in prison and fines up to $10,000.
You’ll also face a three-year IID requirement. If you rack up three DUI convictions within five years, that requirement jumps to four years.
Most people don’t realize a third DUI is a felony. They find out the hard way. Don’t be one of them.
Fourth and Subsequent Offense DUI Penalties
A fourth DUI? That’s a felony, no matter what. And it uses a lifetime lookback, meaning every prior DUI ever on your record counts.
Prison time ranges from one to seven years depending on your BAC level. The court sets the fine. Your license is revoked for life.
There’s basically no coming back from a fourth offense without facing life-altering consequences.
Felony DUI: When Someone Gets Hurt or Dies
Wait, it gets more serious. If your DUI causes injury or death, the charges escalate dramatically.
If someone suffers great bodily injury because of your DUI, you face 30 days to 15 years in prison and fines from $5,100 to $11,000. If someone dies, you face one to 25 years in prison and fines up to $25,000.
In 2026, South Carolina’s legislature passed a new category called Felony DUI Second Degree. This covers cases where the injured person experiences what’s defined as “moderate bodily injury,” like a bone fracture or dislocation. That crime carries a mandatory fine of $3,000 to $6,000 and 90 days to five years in prison.
That’s a big change. Previously, felony DUI only applied to “great bodily injury” or death.
The Implied Consent Law: You Already Said Yes
Confused about the breathalyzer? Let me break it down.
South Carolina’s implied consent law means that by simply driving on state roads, you have already legally agreed to take a chemical test if an officer has probable cause to arrest you for DUI. That’s the law. You already consented just by getting in the car.
You technically have the right to refuse the test. But refusing comes with immediate consequences. A first refusal means your license is suspended for six months right away. A second refusal within 10 years means nine months. A third refusal means 12 months.
Here’s the kicker. Refusal can also be used as evidence against you in court. Juries often see it as a sign you had something to hide.
You’re not alone if this confuses a lot of people. Most drivers don’t realize that refusing doesn’t mean avoiding trouble. It often creates more.
You also have just 30 days from your arrest to request an administrative hearing to challenge your license suspension. Miss that window and you lose your chance.
South Carolina’s Unique Video Requirement
South Carolina is actually one of the few states with a strict video recording requirement. Officers must videotape the DUI stop, field sobriety tests, and the breathalyzer administration.
This is huge. If an officer fails to record properly, that evidence can be thrown out. It can even lead to case dismissal in some situations.
Honestly, this is the part most people miss when thinking about their defense options. That video requirement exists to protect both the officer and the driver.
Underage DUI Laws
South Carolina has a zero-tolerance policy for drivers under 21. The legal limit is not 0.08% for young drivers. It’s basically any detectable amount. A BAC of 0.02% or higher can result in a DUI charge for someone under 21.
The penalties for underage DUI mirror those for adults. That means fines, jail time, and license suspension. Courts may also add extra restrictions based on the driver’s age.
A DUI at 18 or 19 can derail college plans, scholarship opportunities, and career options before they even start.
DUI with a Child in the Vehicle
If you’re charged with DUI and you have a passenger under 16 in the car, you can also be charged with child endangerment. That charge is separate and on top of the DUI penalties.
It carries an additional 60-day license suspension upon conviction. And it goes on your record as an extra criminal charge. The courts take this very seriously.
What Happens to Your License
Let’s talk about what happens to your driving privileges specifically.
A first offense means a six-month suspension. A second offense can mean a one-year suspension. A third offense can mean a longer revocation period. A fourth offense results in lifetime revocation of your license.
To get your license back after most DUI convictions, you must complete ADSAP, pay a $100 reinstatement fee, file an SR-22 insurance form, and install an IID if required. SR-22 is a special insurance document that proves you’re carrying the minimum required coverage. Insurance companies typically charge significantly more for it.
After a DUI conviction, insurance premiums can double or triple. That’s on top of all the fines.
The 2026 DUI Crackdown: What’s New
Okay, pause. Read this carefully. South Carolina’s Senate unanimously passed a major new DUI reform bill in February 2026.
The changes include longer license suspensions for people who refuse a breathalyzer test. Drivers who refuse now face a one-year to four-year suspension depending on how many prior convictions they have. That’s up significantly from the previous rules.
The new law also requires convicted DUI offenders to attend a DUI Victim Impact Panel. That’s a program where people hear firsthand from victims of drunk driving crashes. The enrollment fee is capped at $75.
Lawmakers also expanded what counts as felony DUI to include cases involving moderate bodily injury. And they extended IID requirements in new situations. These changes represent the biggest overhaul of South Carolina DUI laws since 2008.
The Hidden Costs of a DUI
Fines are just the beginning. Here’s what most people don’t think about until it’s too late.
Attorney fees can run thousands of dollars. Court costs add up. IID installation and monthly fees cost money. ADSAP enrollment costs money. SR-22 insurance costs more per year. And your car insurance rates may skyrocket.
Add it all up, and a single DUI conviction can cost $10,000 or more when everything is said and done. That’s not including the lost wages if you can’t get to work without a license or lose your job entirely.
Some countries, including Canada, may deny entry to travelers with a DUI conviction. Healthcare workers, teachers, truck drivers, and others in licensed professions can face additional consequences from licensing boards.
What to Do If You’re Arrested for DUI
So what happens if you’re pulled over? Here’s what you need to do.
Stay calm and be polite to the officer. You have the right to remain silent beyond basic identification. If you’re arrested, do not answer questions without a lawyer present.
Act fast on your license. You have 30 days from the date of your arrest to request an administrative hearing to challenge your suspension. Do not miss this deadline.
Get a DUI attorney as soon as possible. DUI cases are technical. Officers must follow strict procedures. The video requirement, the IID program, the field sobriety tests, and the chemical tests all have rules. A good attorney reviews all of it.
Don’t wait and hope it goes away. It doesn’t.
Frequently Asked Questions
What is the legal BAC limit in South Carolina?
For adults 21 and older, the limit is 0.08%. For commercial drivers, it’s 0.04%. For drivers under 21, any BAC of 0.02% or higher can result in DUI charges.
Can I refuse the breathalyzer test in South Carolina?
Yes, but refusing comes with an automatic license suspension of at least six months for a first refusal. The refusal can also be used as evidence against you in court.
Is a DUI a felony in South Carolina?
A first or second DUI is generally a misdemeanor. A third offense within 10 years is a felony. A fourth offense is always a felony using a lifetime lookback. DUI causing injury or death is also a felony.
Will a DUI stay on my record forever in South Carolina?
Yes. South Carolina law does not allow DUI convictions to be expunged. A DUI conviction is permanent on your criminal record.
Do I have to install an ignition interlock device after a first DUI?
Yes. As of May 2024, the All Offender Law requires all DUI convicts, including first-time offenders, to install an IID before their license can be reinstated.
What is ADSAP?
ADSAP stands for Alcohol and Drug Safety Action Program. It’s a state-approved substance abuse evaluation and treatment program that all DUI convicts must complete before getting their license back.
How much does a DUI cost in South Carolina?
When you add fines, attorney fees, court costs, IID fees, ADSAP, and increased insurance premiums, a DUI can easily cost $10,000 or more in total.
Final Thoughts
South Carolina’s DUI laws are strict. They’re getting stricter. And the consequences can follow you for the rest of your life.
Now you know the basics. Stay informed, make smart choices, and if you ever find yourself in this situation, act fast and get legal help. When in doubt, call a DUI attorney. Your license, your record, and your future are worth protecting.
