Charged With Your First DUI in South Carolina: What Happens Now?

KEY TAKEAWAYS:

A first DUI in South Carolina carries a mandatory fine or jail time, a driver's license suspension process that runs on its own separate clock, and, under the state's 2024 all-offender law, an ignition interlock requirement for nearly every conviction. The criminal case and the license suspension are decided in different forums, so missing the 30-day window to challenge the suspension can cost you your license even if the criminal charge is later resolved in your favor. Contacting a Charleston DUI lawyer right after your arrest gives you the best chance to protect your license, your record, and your future.

Blue lights flash behind you. Minutes later, you are answering questions, taking roadside tests, and wondering what a first DUI in South Carolina could mean for your future. The arrest can trigger two separate concerns—the criminal charge against you and the potential loss of your driving privileges—and each follows its own process and deadlines.

Attorney Merritt Farmer at the Farmer Law Firm helps people facing DUI charges understand what comes next, what decisions may need to be made quickly, and what defense options may be available. A first DUI charge can be frightening, but an arrest is not a conviction. Understanding the process and hiring our DUI lawyer are the first steps toward protecting your rights and moving forward.

What Is DUI in South Carolina?

Under South Carolina law, DUI means driving while under the influence of alcohol, drugs, or a combination of substances to the extent that the person’s ability to drive is materially and appreciably impaired. A DUI charge can arise from alcohol, illegal drugs, prescription medications, or other substances that impair driving ability.

South Carolina also sets specific blood alcohol content (BAC) limits based on the type of driver and recognizes a separate alcohol-related offense:

• Drivers age 21 and older. A BAC of 0.08% or higher is the legal threshold at which impairment may be inferred. A driver can still face a DUI charge with a lower BAC if other evidence indicates that alcohol or another substance materially and appreciably impaired the person’s ability to drive.
• Drivers under age 21. South Carolina’s zero-tolerance law sets a much lower BAC limit of 0.02% for underage drivers. This means even a relatively small amount of alcohol can create serious legal consequences for someone who has not reached the legal drinking age.
• Commercial drivers. The BAC limit for commercial drivers is 0.04%. Because commercial drivers are held to a stricter standard, reaching this lower threshold can lead to alcohol-related consequences.
• Driving With an Unlawful Alcohol Concentration. South Carolina also recognizes DUAC, a companion charge that applies when a driver has a BAC of 0.08% or higher. Unlike a DUI case, which is focused on whether the person’s ability to drive was materially and appreciably impaired, a DUAC charge centers on the numerical BAC test result. It does not require proof of erratic driving behavior.

What Happens Right After a South Carolina DUI Arrest?

A South Carolina DUI arrest moves quickly. The traffic stop, field sobriety and breath testing, and then booking are often completed within one to three hours. Knowing what to expect helps you avoid mistakes that make the case harder to defend.

• The officer typically requests field sobriety tests and, with probable cause, a breath test at the station.
• Your license is taken on the spot, and you're handed a Notice of Suspension that starts a separate 30-day clock if you refuse the requested chemical test or register an alcohol concentration of 0.15% or higher, covered below.
• You're booked, and a bond is typically set so you can be released before your first court date.

What Criminal Penalties Come With a First DUI Conviction?

South Carolina's penalties for a first DUI rise with your blood alcohol content and are set by South Carolina Code Section 56-5-2930.

Fines and Jail Time by BAC Level

• Below .10 percent: a $400 fine plus assessments and surcharges or 48 hours to 30 days in jail, with public service allowed in place of the 48-hour minimum.
• At least .10 percent but under .16 percent: a $500 fine plus assessments and surcharges or 72 hours to 30 days in jail, with public service possible instead of the 72-hour minimum
• .16 percent and above: a $1,000 fine plus assessments and surcharges or 30 to 90 days in jail, with public service possible in place of the 30-day minimum

Other Court-Ordered Requirements

You will have to successfully complete South Carolina's Alcohol and Drug Safety Action Program. You will also have a permanent criminal record that cannot be expunged.

What Happens to Your Driver's License After a First DUI?

Your license suspension runs on a separate track from the criminal case, under South Carolina's implied consent law. Missing the deadline to challenge it can cost you your license even if the DUI charge is later dismissed.

The 30-Day Implied Consent Window

• Refusing the breath test triggers a suspension of at least six months.
• Registering a BAC of .15 percent or higher triggers an automatic suspension of at least one month, even without a conviction.
• You have 30 days from the Notice of Suspension to request a contested case hearing before the Office of Motor Vehicle Hearings.

After a Conviction

If you are convicted of a first DUI, your license could be suspended for six months. 

South Carolina's All-Offender Ignition Interlock Law

Since May 2024, South Carolina has required an ignition interlock device to restore driving privileges after nearly every DUI conviction, including a first offense with a BAC under .15 percent. This is a change from the older rule, which applied only to repeat offenders or higher test results. The device is installed on your vehicle and blocks the ignition unless you provide an alcohol-free breath sample.

Can You Fight a First DUI Charge in South Carolina?

An arrest is not automatically a conviction. Several parts of the stop and testing process have to hold up under scrutiny. A few challenges our DUI attorney may raise as a defense include: 

• Whether the officer had reasonable, articulable suspicion for the traffic stop.
• Whether the field sobriety tests were administered in strict compliance with standardized procedure.
• Whether the breath test machine was properly calibrated and the operator was qualified to run it.
• Whether you were read your implied consent rights, verbally and in writing, before testing.
• Whether your constitutional rights were violated 

Because breath and blood test results aren't infallible, a full review of the field sobriety and breath test evidence, measured against NHTSA's standardized testing protocol, often reveals grounds for a motion to suppress or a reduced charge.

What Should You Do in the Days After Your Arrest?

The choices you make in the first week shape both the criminal case and the license fight.

• Calendar the 30-day implied consent hearing deadline the day you're released.
• Retain The Farmer Law Firm immediately to defend you.
• Avoid discussing the arrest on social media or with anyone besides our lawyer.
• Gather the paperwork you received at booking, including the Notice of Suspension and any bond documents.

Why Work With a Charleston County DUI Lawyer for a First Offense?

A first DUI can put more at risk than you may realize. You could face jail time, restrictions on your ability to drive, an ignition interlock requirement, and a permanent criminal record—all while trying to keep up with deadlines that may affect your license and your defense. Missing an important step can create another problem at a time when you already have enough to worry about. Having an attorney address both sides of your case can help you understand what requires immediate attention and what options may be available to you.

Merritt Farmer brings specific training to the details that can matter in a DUI case. He is certified as an instructor in the NHTSA-recognized DUI Detection and Standardized Field Sobriety Testing course. That training allows him to examine how your traffic stop, field sobriety tests, chemical testing, and arrest were handled rather than simply accepting the prosecution’s version of events. For you, that means the evidence against you gets a careful review—and any weaknesses that could matter to your defense can be identified.