South Dakota's under-21 zero-tolerance law applies to instruction permit holders at a BAC of 0.02 percent or higher.
Important:A single beer can cross that threshold. DUI convictions carry a 10-year lookback period for enhanced penalties on subsequent offenses. If your permit is revoked, download the Minors Permit or License Cancellation Formfrom the DPS resource library.
South Dakota's Zero Tolerance Law sets 0.02 percent BAC as the trigger for under-21 drivers. First offense: 30-day suspension. Second offense: 180 days. Third or subsequent offense: 1 year. A single drink can cross this threshold.
| Situation | License / Permit Consequence |
|---|---|
| Under-21 0.02% alcohol violation | First offense: 30-day suspension. Second: 180-day suspension. Third or subsequent: one-year suspension. |
| Separate DUI charge under SDCL 32-23-1 | Separate DUI penalties apply based on the offense and case; this is not the same as the under-21 0.02% suspension schedule. |
| Requested chemical-test refusal in an under-21 case | If the refusal is upheld under the implied-consent process, the revocation is one year, subject to the SDCL 32-23-11.1 exception explained below. |
Under SDCL 32-23-21, any driver under 21 with a BAC of 0.02 percent or higher faces a license or operating-privilege suspension statewide. A requested chemical-test refusal follows a separate implied-consent process and can result in a one-year revocation if upheld, which is longer than the 30-day suspension for a first under-21 0.02% offense.
A Sioux Falls permit holder had a single beer at a party. A traffic stop on the way home recorded a BAC of 0.03% - above the 0.02% threshold. The permit was suspended for 30 days under the first-offense zero-tolerance schedule.
Exception before the refusal revocation order: Under SDCL 32-23-11.1, the refusal revocation under SDCL 32-23-18 does not apply if the person pleads guilty to the under-21 offense in SDCL 32-23-21 before the revocation order is issued. This exception does not remove the penalties for that conviction. Discuss any plea decision with a lawyer.
Yes. South Dakota DUI law covers driving while impaired by marijuana, controlled drugs, prescription drugs, or other substances when they make the person incapable of safely driving. For drivers under 21, the zero-tolerance law also covers marijuana or controlled-drug consumption in the circumstances stated in SDCL 32-23-21.
A zero-tolerance violation under SDCL 32-23-21 is a Class 2 misdemeanor, with a maximum $500 fine. A separate DUI conviction under SDCL 32-23-1 can carry Class 1 misdemeanor penalties up to $2,000. Courts frequently order 24/7 Sobriety Program participation for underage cases.
A Brookings permit holder paid $1,200 in fines and completed 40 hours of community service after a first-offense DUI. The permit revocation extended their path to a full license by 14 months - 12-month revocation plus restarting the holding period clock after reinstatement.
In some cases, a limited driving privilege may be available by court order; it is not automatic. For an under-21 zero-tolerance offense, SDCL 32-23-21 allows the court, after proof of financial responsibility, to permit driving for employment, school, or counseling.
A DUI or zero-tolerance conviction can push back the next licensing date. The minor must hold a valid instruction permit for the required continuous period and must also satisfy the no-traffic-conviction requirement before moving to the restricted minor's permit, so a suspension or revocation can require the timeline to be recalculated.
South Dakota can act on an out-of-state conviction or final administrative decision. If the reported offense would be grounds for suspension, revocation, or disqualification in South Dakota, DPS may impose the corresponding South Dakota licensing action.
DUI convictions carry a 10-year lookback period for enhanced penalties on repeat offenses. Complete the court-ordered requirements, wait out the applicable suspension or revocation, and apply for reinstatement. The required fees and examinations depend on the withdrawal involved; they are not identical for every suspension and revocation.
For the full South Dakota permit DUI rules, zero tolerance thresholds, and reinstatement process, see the South Dakota Learner's Permit guide on shoro.ai.
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