South Dakota DUI Laws and Penalties
Explained

When facing a DUI (Driving Under the Influence) charge in South Dakota, comprehensive understanding of the state's DUI laws and penalties is essential for effectively managing your legal proceedings.

South Dakota DUI laws are strict, with serious consequences for those convicted, including financial penalties, license suspension, and potential incarceration. This guide provides a thorough examination of DUI penalties in South Dakota to help you stay well-informed and prepared.

An Overview of South Dakota DUI Laws

South Dakota DUI laws are governed by S.D. Codified Laws § 32-23-1, which prohibits operating or maintaining actual physical control of a motor vehicle while impaired by alcohol or controlled substances. The state enforces strict penalties for DUI violations, with consequences that increase substantially for repeat offenders.

According to South Dakota law, DUI (Driving Under the Influence) of alcoholic beverages, chemical substances, or controlled substances constitutes a single offense, proven by impairment of normal abilities or an unlawful blood alcohol or breath alcohol concentration of 0.08 or higher.

South Dakota follows an "implied consent" law, meaning that operating a vehicle on South Dakota roads automatically indicates your consent to chemical testing if lawfully arrested for DUI. Refusing to submit to testing leads to automatic license suspension and may be used as evidence against you in court proceedings.

Key Legal Threshold
0.08
Blood Alcohol Level
Legal limit for drivers 21 and over
Enhanced Penalties
0.17
Blood Alcohol Level
Threshold for enhanced penalties

An Overview of South Dakota DUI Penalties

Under South Dakota law (S.D. Codified Laws § 32-23-1), DUI penalties can include substantial fines, potential jail time, license suspension, and the installation of an ignition interlock device, with the severity depending on your history and specific circumstances.

These consequences can have a lasting impact on your driving privileges, employment opportunities, and financial well-being. Whether you're seeking general information or facing DUI charges, it's crucial to understand South Dakota's strict laws and the escalating penalties that accompany each offense.

Specific Penalties for a DUI in South Dakota

South Dakota DUI Fine Schedule

In South Dakota, DUI fines increase with each conviction. The penalties become more severe if your blood alcohol level is 0.17 or above or if a child was in the vehicle during the arrest. These circumstances are considered particularly hazardous.

The state uses monetary penalties to emphasize the gravity of impaired driving. Repeat offenders face substantially increased fines as a way to discourage patterns of risky behavior and protect public safety.

First Conviction

Standard:
$500 - $2,000
BAL 0.17+ or Minor Present:
$1,000 - $4,000

Second Conviction

Standard:
$1,000 - $5,000
BAL 0.17+ or Minor Present:
$2,000 - $10,000

Third Conviction

Standard:
$2,000 - $10,000
BAL 0.17+ or Minor Present:
$4,000 - $20,000

Fourth+ Conviction

Standard:
$2,000 - $10,000
BAL 0.17+ or Minor Present:
$5,000 - $10,000

South Dakota Imprisonment Terms

South Dakota imposes harsher jail sentences for each DUI conviction. A first offense may result in up to 1 year of jail time, but higher blood alcohol levels or aggravating factors can increase that penalty.

Repeat offenses lead to mandatory minimum jail stays that increase significantly. The law also requires certain jail time to be served in consecutive days to ensure the offender cannot easily circumvent the sentence.

1st

First Conviction

  • Up to 1 year imprisonment
  • Enhanced penalties for high BAC
2nd

Second Conviction

  • 5 days to 2 years imprisonment
  • Enhanced penalties for repeat offense
3rd

Third Conviction

  • 30 days to 5 years imprisonment
  • Felony charges possible
4th

Fourth+ Conviction

  • Class 5 felony: 1 to 5 years imprisonment
  • Mandatory minimum 30 days imprisonment

South Dakota Vehicle Impoundment/Immobilization

South Dakota law may require the offender's vehicle to be impounded after certain DUI convictions. The duration depends on the specific circumstances and prior offenses.

This penalty serves as a deterrent by limiting the offender's immediate ability to drive again. Vehicle impoundment periods increase with repeat offenses, providing additional consequences beyond fines and jail time.

Unless the family has no other transportation:

30
Days
First Conviction
90
Days
Second Conviction
180
Days
Third+ Conviction
* Impoundment cannot occur concurrently with incarceration

South Dakota Driver License Revocation Periods

Losing your driver's license in South Dakota after a DUI is standard, and the duration depends on the specifics of the offense. First offenses typically result in a suspension that lasts 30 days, but that time increases significantly for repeat offenses.

Multiple offenses lead to much longer suspensions. After multiple convictions, the state can suspend your license for extended periods. In some cases, you may apply for limited driving privileges after serving a minimum period, but this requires meeting strict conditions.

First Offense

  • • 90 days to 1 year suspension
  • • Enhanced: Test refusal: 1 year suspension

Second Offense

  • • 1 to 2 years suspension
  • • Enhanced: Test refusal: 2 years suspension

Third Offense

  • • 3 to 5 years suspension
  • • Enhanced: Test refusal: 5 years suspension

Fourth+ Offense

  • • 2 years revocation
  • • Enhanced: Possible extended revocation

Serious DUI Offenses in South Dakota

South Dakota treats DUI-related fatalities as serious felonies. DUI causing death can carry severe prison sentences and substantial fines. If the driver flees the scene, the charge becomes even more serious.

Vehicular homicide follows a similar pattern. These cases demonstrate how South Dakota distinguishes common DUI charges from those involving loss of life. The legal consequences reflect the permanent damage caused by one reckless decision.

DUI Manslaughter

  • Second degree felony
  • Up to $10,000 fine and/or 15 years imprisonment
Leaving the scene: First degree felony (up to 30 years)

Vehicular Homicide

  • Second degree felony
  • Up to $10,000 fine and/or 15 years imprisonment
Leaving the scene: First degree felony (up to 30 years)

South Dakota Ignition Interlock Law and Device Guidelines

South Dakota law mandates ignition interlock devices for certain DUI convictions. The requirements vary based on the offense level and blood alcohol content at the time of arrest. First-time offenders may be required to install an ignition interlock device for 1 year.

Repeat offenders face mandatory ignition interlock requirements that increase with each conviction - from 2 years for a second offense up to 3 years for multiple convictions. The device must be installed by a state-approved provider and requires regular maintenance and monitoring.

All costs associated with the ignition interlock device, including installation, monthly monitoring fees, and removal, are the responsibility of the offender. Tampering with or circumventing the device constitutes a separate criminal offense.

For complete statutory language and the most current information, please refer to:

S.D. Codified Laws § 32-23-1

South Dakota Department of Public Safety

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