Missouri Ignition Interlock Laws

In Missouri, you will be penalized from both the court and the Missouri Department of Revenue (DOR) for a DUI offense. For first and repeat DUI offenders, you may be required to install and maintain an Ignition Interlock Device (IID) in your vehicle if you…

Had a breath alcohol concentration (BAC) level of .08 or higher.
Are guilty of a second or subsequent DUI traffic offense.
Refused to take a drug or alcohol test from a police officer on your record.

*You will be responsible for all costs and installation services for the IID, and bring your vehicle in for regular monito ring and service.
** You may be eligible for a Limited Driving Privilege (LDP) if your driving privileges have been suspended and you cannot reinstate your license.

How to Get Your License Quickly in Missouri

Serve all suspension and jail time. Fill out LDP application if applicable.
Attend and complete the Substance Abuse Traffic Offender Program.
Fill out an SR-22 form (sample) as proof of financial responsibility.
Call 800.831.3299 to schedule an appointment to have your interlock device installed with a state-approved, Smart Start interlock service provider.
Finally, pay your reinstatement fee and provide all of the above paperwork to the DOR. Note that you will still have to complete court regulations as well.

DISCLAIMER: These steps may not be a complete representation of what you must do to regain your license. As DUI case details vary by each individual, please do not see this step-by-step guide as an official process to regaining your license, but rather as a starting point only.

How Much Does a DUI Cost in Missouri?

DUI Offense	Jail Time	Fee *IID fees not included	Suspended License Period
First	Up to 6 months	Maximum of $500	Up to 90 days
Second	Up to 1 year	Up to $1,000	1 to 5 years with chance of license cancellation
Third and subsequent	Up to 4 years	Up to $5,000	Possible license cancellation for 10 years