What happens if I refuse a breathalyzer test after a DUI stop in South Carolina?

KEY TAKEAWAYS:

South Carolina's implied consent law requires drivers arrested for DUI to submit to a breath, blood, or urine test, and refusing the official test triggers an automatic license suspension of at least six months, regardless of whether you're ever convicted. You can challenge that suspension, but only if you request a contested case hearing within 30 days of the notice of suspension. A Charleston DUI attorney can help you weigh that decision and move quickly to protect your driving privileges.

The moment feels like it stretches on forever: blue lights in the mirror, an officer at your window asking whether you've had anything to drink, then the question that changes everything: will you take the breath test? For drivers in Mount Pleasant, Charleston, and across the Tri-County area, that decision carries consequences most people don't fully understand until it's too late. At the Farmer Law Firm, we help clients understand exactly what refusing a breathalyzer test in South Carolina means for their license and case.

What Is South Carolina's Implied Consent Law?

South Carolina's implied consent law means that simply by driving on the state's roads, you've already agreed to chemical testing if you're arrested for DUI. It isn't a form you sign. It's a condition attached to your driver's license from the moment you got it.

Under South Carolina Code Section 56-5-2950, a person who drives in this state is considered to have consented to a breath, blood, or urine test if arrested for an offense involving driving under the influence of alcohol, under the influence of drugs, or a combination of the two. The officer must first offer a breath test. Blood or urine samples come into play only if you're physically unable to give a breath sample or the officer has reasonable suspicion of drug impairment.

What Happens If You Refuse the Breath Test After a DUI Arrest?

Refusing the official breath test at the police station is a different decision than refusing the handheld device officers sometimes use on the roadside, and the station refusal carries immediate consequences. Before that test is offered, the arresting officer has to read you a specific set of warnings on video. What you're told in that moment shapes everything that follows.

• You do not have to take the test or give a sample, but refusing suspends your driving privilege for at least six months.
• You have the right to have an independent test conducted at your own expense.
• You have the right to request a contested case hearing within 30 days of the notice of suspension.
• Your refusal itself may be used as evidence against you in the criminal case.

How Long Will Your License Be Suspended for Refusing a Breathalyzer?

The suspension length depends on what happened at the station, not on the outcome of your criminal case. South Carolina sets different minimum periods depending on whether you refused the test or took it and registered a high reading. For a driver with no qualifying prior DUI convictions or suspensions within the previous 10 years:

• Refusal. Your license is suspended for six months. Instead of serving the remainder of the suspension, you may be able to enroll in the Ignition Interlock Device Program and obtain an ignition-interlock-restricted license.
• BAC of 0.15% or higher. Your license is suspended for one month. The ignition interlock option is also available, although the device must generally remain installed for at least three months when less than three months remain on the suspension.
• ADSAP requirement. If you do not successfully challenge the suspension, you must enroll in an Alcohol and Drug Safety Action Program. You must be attending or have completed the program before your driving privileges can be restored after suspension or ignition interlock requirements are met.

Can You Challenge an Implied Consent Suspension?

Yes, but the clock starts running the moment the officer hands you the notice of suspension, not when your criminal case gets underway. The administrative suspension and the DUI charge move on two separate tracks, so resolving one doesn't automatically resolve the other.

• Request a contested case hearing before South Carolina's Office of Motor Vehicle Hearings within 30 days of the notice
• Apply for a temporary alcohol license so you can keep driving without restriction while the hearing is pending

If you skip the hearing or the hearing officer upholds the suspension, you'll need to enroll in the Alcohol and Drug Safety Action Program (ADSAP). To get back on the road before the suspension period runs out, you must also install an ignition interlock device and obtain an ignition-interlock-restricted license.

Does Refusing the Test Help or Hurt Your DUI Case?

There's no single right answer, and it depends on details unique to your stop. Refusing a breath test excludes the number from the state's evidence, but it doesn't make the criminal case disappear.

Prosecutors can still rely on the officer's observations, field sobriety tests, dashcam footage, and your driving pattern to argue impairment, and your refusal itself can be presented in court. Whether refusal helped or hurt your specific case often comes down to how the stop was conducted and whether the implied consent warnings were given correctly. This is the kind of detail Merritt Farmer reviews closely in every case to build a strong defense against DUI charges. 

What Should You Do After Refusing a Breathalyzer in Charleston?

Acting quickly protects both sides of your case at once. The 30-day clock on your license runs whether or not you've hired anyone, and evidence in the criminal case is easier to preserve early than after months have passed.

Merritt Farmer is among a small number of attorneys nationally certified as an instructor in the NHTSA-recognized DUI Detection and Standardized Field Sobriety Testing course, the same training police officers receive, and holds ARIDE certification for detecting impairment from drugs other than alcohol. That background allows him to examine the stop, the arrest, and the implied consent process for errors that can make a real difference in both your administrative suspension and underlying Charleston County DUI case.