Mississippi · DUI · Checked October 2026
Ignition Interlock Rules in Mississippi
Ignition Interlock Rules in Mississippi: What Are the Rules?
When Mississippi requires an ignition interlock after a DUI.
- First offense
- Not mandatory; an interlock-restricted license is an alternative to the 120-day suspension when ordered by the court, and alcohol nonadjudication requires 120 days on an interlock-restricted license or a 120-day suspension
- Repeat offenses
- Second and later convictions: vehicles without an interlock are impounded or immobilized; third offense: interlock-restricted license only for 3 years after release; fourth or subsequent: 10 years
First Offense in Mississippi
not mandatory; an interlock-restricted license is an alternative to the 120-day suspension when ordered by the court, and alcohol nonadjudication requires 120 days on an interlock-restricted license or a 120-day suspension
Repeat Offenses in Mississippi
second and later convictions: vehicles without an interlock are impounded or immobilized; third offense: interlock-restricted license only for 3 years after release; fourth or subsequent: 10 years
How the Program Works in Mississippi
to return to an unrestricted license you need proof of completing the alcohol safety program if ordered, the reinstatement and license fees, proof of insurance, and a vendor declaration of no violations in the last 30 days; the court may extend the interlock period after a violation
More on DUI Law in Mississippi
See the full overview of DUI laws in Mississippi and read about how ignition interlock programs work.
This page summarizes Mississippi law from official sources, checked October 2026. It isn't legal advice; a lawyer licensed in Mississippi can advise on your case.
Frequently Asked Questions
Is an Ignition Interlock Required for a First DUI in Mississippi?
not mandatory; an interlock-restricted license is an alternative to the 120-day suspension when ordered by the court, and alcohol nonadjudication requires 120 days on an interlock-restricted license or a 120-day suspension
Is an Interlock Required for Repeat Offenses?
second and later convictions: vehicles without an interlock are impounded or immobilized; third offense: interlock-restricted license only for 3 years after release; fourth or subsequent: 10 years