In 1996, the Missouri Legislature passed an Ignition Interlock law (now 577-600 through 577-614 RSMo) requiring second time intoxication-related traffic offenders to install and maintain a state approved ignition interlock device (IID) in their vehicles. 577-608 RSMo directs the Highway Safety Division – MoDOT to certify devices, adopt guidelines, standards and approval of ignition interlock devices. In 2009, the Highway Safety Division – MoDOT contracted with the Missouri Safety Center at the University of Central Missouri to carry out the monitoring component of the State’s ignition interlock program, specifically, inspection of the installation sites throughout the state.
Currently there are six approved IID manufactures and seven different device models approved for use in Missouri. At the present time there are 4500 to 4600 drivers required to install and maintain an IID on any vehicle that they drive. This number fluctuates from month to month because of divers being ordered by the courts or the Missouri Department of Revenue (DOR) to install the devises and complete the program. A list of certified manufactures and installers, by city, can be found online at http://www.modot.mo.gov/safety/IgnitionInterlock.htm. This list is updated monthly by MoDOT.
As noted earlier, oversight of the State’s Ignition Interlock program rests with the Highway Safety Division – MoDOT and Mrs. Jackie Rogers, Senior System Management Specialist, Jacqueline.Rogers@modot.mo.gov or 800-800-BELT. Mr. Donald DeBoard, with Missouri Safety Center, is the State Ignition Interlock Monitor responsible for monitoring the approved installers and reporting to MoDOT and DOR. If you have questions or concerns please contact Mr. DeBoard by email or at (660) 543-8004.
Download the “Show Me My Buzz” App
Available now on the iPhone App Store
Download the new smartphone app that lets you estimate your BAC and helps get you a cab. Check your BAC before you drive or check-in at the local jail.
“Show Me My Buzz” allows users to calculate their estimated blood alcohol concentration (BAC) based on how may drinks they have consumed, how long they have been drinking and their gender. It will even provide the phone number of a local cab company with just a tap of the screen.
The BAC calculator is only a guide that estimates averages. Alcohol affects everyone differently. Influencing factors include food consumption, medication, health and psychological conditions. The best plan is to always designate a sober driver. A sober driver is someone who has not had anything to drink.
In 2010, 207 people were killed and 831 seriously injured in crashes involving a drunk driver.
Disclaimer: This blood alcohol concentration (BAC) calculator is only an estimate and is not sufficiently accurate to be considered legal evidence. The calculations are averages. Individuals may vary in their personal alcohol tolerance. Food in the stomach, medications, health and psychological conditions are influencing factors. Many establishments that serve alcohol serve portions larger than the standard drink size.
More information on impaired driving
• Driving While Intoxicated brochure(1.12 mb, 2 pages)
Links to other safety pages
The documents are provided in Acrobat Reader format. Free Acrobat Reader download
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