Mississippi uses a zero-tolerance rule for drivers under 21 with a BAC of 0.02% through 0.079%. A BAC of 0.08% or higher falls under the standard DUI provisions, and chemical-test refusal has its own implied-consent consequence. These should not be treated as one single penalty category.
For a driver under 21, Mississippi's zero-tolerance provision covers a BAC of 0.02% through 0.079%. A first conviction carries a 120-day suspension and does not automatically bar the driver from licensing until age 18 regardless of the case. A BAC of 0.08% or higher is handled under the standard DUI provisions, while a first chemical-test refusal carries a separate 90-day suspension.
| Situation | How Mississippi Treats It |
|---|---|
| Under 21, BAC 0.02%–0.079% | Zero-tolerance provision; first conviction carries a 120-day suspension. |
| BAC 0.08% or higher | Standard DUI provisions apply. |
| Chemical-test refusal | Separate implied-consent consequence; first refusal carries a 90-day suspension. |
Mississippi has a special licensing consequence for a person who was below the legal age to obtain a driver's license when the DUI offense occurred and is convicted: the person cannot receive a driver's license until age 18. Keep this rule separate from the ordinary under-21 suspension rules; it should not be applied automatically to every permit holder under 18.
Court proceedings for an underage DUI with a permit are criminal cases. The conviction remains on your driving record for a 5-year lookback period, enhancing penalties for future offenses.
A 17-year-old in Gulfport pays their fine but forgets to get the MASEP completion certificate sent to the DPS. When they go to the Driver Service Bureau on Pass Road to reinstate, they are turned away and must reschedule, causing a months-long delay.
Verify your MASEP completion is electronically reported to the DPS before visiting any office to avoid immediate rejection and a wasted trip.
A qualifying first offender under 21 may be eligible for nonadjudication, but it is not automatic. The court must determine eligibility and the statutory conditions must be met. The applicant should follow the court order and DSB record requirements rather than assuming the case disappears automatically.
A DUI conviction can interrupt the path to a regular license. Reinstatement depends on the applicable suspension period and the DSB requirements attached to the record; do not assume every case requires restarting the entire learner-permit application or retaking the knowledge test.
Not when the statute requires the DUI-related suspension or restriction to run consecutively to another administrative suspension. In that situation, the periods are served one after the other rather than at the same time.
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