Felony DUI in South Carolina: Penalties, License Loss, and Defenses

A DUI in South Carolina becomes a felony when an impaired driver causes great bodily injury or kills someone in a crash. Under South Carolina Code 56-5-2945, a conviction carries mandatory prison time between 30 days and 25 years, fines up to $25,100, an automatic license suspension, and years of driving with an ignition interlock device after release.¹ The consequences don’t end there. A felony DUI in South Carolina permanently strips firearm rights, cannot be expunged, and opens the door to civil lawsuits from victims and their families.

What Elevates a DUI to a Felony

A standard DUI in South Carolina is a misdemeanor. It becomes a felony when the impaired driver causes great bodily injury or death to another person. State law defines great bodily injury as harm that creates a substantial risk of death, causes serious permanent disfigurement, or results in the long-term loss or impairment of a body part or organ.¹ A broken arm that heals cleanly probably doesn’t qualify. A traumatic brain injury, loss of a limb, or organ damage almost certainly does.

The statute covers impairment from alcohol, illegal drugs, prescription medications, over-the-counter drugs, or any combination. What the substance was doesn’t matter. If impairment from any substance contributed to the crash that caused the harm, the felony charge applies.

Prison Time and Fines

Felony DUI carries mandatory minimum sentences. A judge cannot substitute probation or community service for the required prison time. The range depends on whether the crash caused great bodily injury or a death.

When great bodily injury results:

Prison: 30 days to 15 years, mandatory
Fine: $5,100 to $10,100

When death results:

Prison: 1 year to 25 years, mandatory
Fine: $10,100 to $25,100

Sentences are served in the South Carolina Department of Corrections.¹ The fines don’t include court costs, fees, or restitution to victims, all of which stack on top.

Parole Eligibility

Parole exists for felony DUI, but it doesn’t come quickly. Because the offense is classified as a violent crime in South Carolina, a person must serve at least one-third of the sentence or the mandatory minimum portion, whichever is longer, before becoming eligible.² On a 15-year great bodily injury sentence, that’s at least five years before parole is even a possibility, and eligibility does not guarantee release.

License Loss and the Ignition Interlock Requirement

A felony DUI conviction triggers an automatic license suspension by the South Carolina DMV. The suspension stays in effect throughout incarceration. After release, you must enroll in the Ignition Interlock Device Program and drive on an interlock-restricted license. The device stays on your vehicle for three years if the case involved great bodily injury, or five years if someone died.¹

An interlock requires you to blow into a breathalyzer before the car will start, and it prompts random retests while you drive. Installation typically costs $70 to $150, with monthly lease and monitoring fees of $60 to $90. Those costs come out of your pocket for the full interlock period.

There’s a separate suspension if you refused chemical testing at the scene. South Carolina’s implied consent law requires drivers involved in serious or fatal crashes to submit to testing, and refusing means at least a six-month administrative suspension. You have 30 days to request a contested case hearing before the Office of Motor Vehicle Hearings, or you can end the administrative suspension early by enrolling in the Ignition Interlock Device Program.³ Refusing doesn’t defeat the felony DUI case. Prosecutors can still pursue it with other evidence, and the refusal itself can be used in court.

Getting Your License Back: ADSAP and SR-22

Before the DMV restores full driving privileges, you must enroll in the Alcohol and Drug Safety Action Program (ADSAP). ADSAP assesses the substance abuse issues connected to the offense and sets an individualized education or treatment plan. The educational component costs $500. If treatment is required, the total can reach $2,500.⁴

Failing to enroll within 30 days of being ordered to do so can result in a contempt of court finding, and the DMV will not reinstate any license or driving privilege until it receives confirmation of enrollment and completion.⁴ You’ll also need SR-22 insurance, a high-risk policy an insurer files on your behalf to certify state minimum coverage. SR-22 filings drive premiums up sharply, and you should expect to carry one for at least three years.

What Prosecutors Have to Prove

To convict, the state must prove two elements beyond a reasonable doubt: that you were impaired, and that the impairment directly caused the injury or death. Being drunk and being in a crash is not enough on its own. There has to be a causal link between the impairment and the collision.

Prosecutors establish impairment through breathalyzer results, blood tests, field sobriety tests, officer observations, and witness accounts. They prove causation with accident reconstruction experts who analyze skid marks, vehicle damage, road conditions, and the sequence of events. Felony DUI is not an intent crime. Prosecutors don’t need to show you meant to hurt anyone. Driving impaired and causing the harm is enough.¹

Consequences That Outlast the Sentence

The prison term and the license suspension are the penalties most people anticipate. The rest tends to catch them off guard.

Firearm Rights

A felony DUI conviction permanently ends your right to possess firearms under federal law. It doesn’t matter that the underlying conduct was driving rather than violence. Federal law bars anyone convicted of a crime punishable by more than one year of imprisonment from possessing, purchasing, or receiving firearms or ammunition.⁵ Felony DUI in South Carolina carries maximums of 15 to 25 years, so the ban applies. Violating it is a separate federal felony.

No Expungement

A felony DUI conviction cannot be expunged in South Carolina. DUI convictions of any kind are excluded from expungement eligibility.⁶ The conviction stays on your record for life. A pardon is possible through the state’s Probation, Parole, and Pardon Services Board, but a pardon ends the ongoing penalties rather than erasing the record.

International Travel

A felony DUI makes you inadmissible to Canada. Canadian immigration treats impaired driving as serious criminality, so entry requires a Temporary Resident Permit or a formal Criminal Rehabilitation application. Other countries may restrict entry for travelers with felony records as well.

Commercial Driver’s License

If you hold a CDL, federal regulations add another layer. Using any vehicle to commit a felony carries a one-year CDL disqualification for a first offense, and a second conviction means lifetime disqualification. If the vehicle was carrying hazardous materials, even a first offense brings a three-year disqualification. A state may reinstate a CDL after a lifetime disqualification if 10 years have passed and the driver has completed an approved rehabilitation program. Another disqualifying conviction after that reinstatement makes the lifetime bar permanent.⁷

Employment and Housing

A felony conviction shows up on background checks and can disqualify you from jobs requiring a clean record, professional licenses, or security clearances. Many landlords screen for felony convictions too. These barriers persist long after the sentence is served.

Civil Lawsuits from Victims

The criminal case is only part of the exposure. Victims and their families can file a separate civil lawsuit for money damages. In a wrongful death case, South Carolina law allows a jury to award damages proportional to the injury caused by the death, including medical costs incurred before death, funeral expenses, and the loss of the deceased’s future earnings and companionship.⁸

State law also permits “exemplary damages” (South Carolina’s term for punitive damages) in wrongful death cases where the conduct was reckless, willful, or malicious.⁸ Driving heavily impaired and killing someone is the kind of conduct juries tend to punish aggressively. A civil judgment runs independently of the criminal case, so restitution ordered in criminal court and a civil award can both be owed at once.

Defending the Charge

Felony DUI cases are defensible, but the window closes fast. Dashcam footage, breathalyzer calibration records, and blood sample chain-of-custody logs need to be preserved early. Waiting weeks to hire counsel means some of that evidence may already be gone or harder to challenge.

Defenses target the two things the state has to prove. On impairment, attorneys can challenge breathalyzer calibration, blood draw procedures, or whether field sobriety tests followed standardized protocols. On causation, reconstruction evidence can sometimes point to road conditions, mechanical failure, or another driver’s actions as the real cause of the crash. Constitutional challenges are available when officers violated your rights during the stop, arrest, or testing.

When the prosecution’s evidence has gaps, a negotiated reduction to misdemeanor DUI or reckless driving may be possible. The gap between a felony conviction and a misdemeanor is enormous: prison time, firearm rights, and a permanent record all sit on that line. Given the mandatory minimums and the reach of the collateral consequences, this is not a charge to face without an attorney, and not one to delay hiring one on.

1
South Carolina Legislature. South Carolina Code Title 56 Chapter 5 Section 56-5-2945
2
South Carolina Legislature. South Carolina Code Title 24 Chapter 21 Section 24-21-610
3
South Carolina Legislature. South Carolina Code Title 56 Chapter 5 Section 56-5-2950
4
South Carolina Department of Alcohol and Other Drug Services (DAODAS). ADSAP Brochure
5
Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
6
South Carolina Judicial Branch. FAQ about Expungements and Pardons
7
eCFR. 49 CFR Part 383 Subpart D – Driver Disqualifications and Penalties
8
South Carolina Legislature. South Carolina Code of Laws Title 15 Chapter 51 – Section 15-51-40