{
 "slug": "missouri",
 "importedOn": "2026-08-29",
 "verified": true,
 "agencyName": "Missouri Department of Revenue, Driver License Bureau",
 "firstOffenseIidNote": "Under RSMo § 302.440 a court MAY require an ignition interlock device for any first intoxication-related traffic offense, and SHALL require it when the person's blood alcohol content was 0.15% or more, or the person caused property damage or personal injury, or for a second or subsequent offense. The Department of Revenue states that for first-time offenders an IID is required upon conviction if BAC is at or greater than .150 or if there is personal injury or property damage.",
 "sr22Note": "SR-22 form. The Department of Revenue requires filing and maintaining proof of liability insurance (SR-22) for two years from the starting date of the suspension or revocation. The DOR reinstatement page notes SR-22 is not required for a first-time Administrative Alcohol suspension of a driver under age 21.",
 "evidence": {
  "agencyName": {
   "url": "https://dor.mo.gov/faq/driver-license/ignition-interlock-device.html",
   "quote": "Have the IID serviced or reinstalled (the certified installer will send proof of service or reinstallation to the Driver License Bureau)"
  },
  "statuteCitation": {
   "url": "https://revisor.mo.gov/main/OneSection.aspx?section=302.440",
   "quote": "302.440. Devices, use of, when. — In addition to any other provisions of law, a court may require that any person who is found guilty of a first intoxication-related traffic offense, as defined in section 577.001, and a court shall require that any person who is found guilty of a second or subsequent intoxication-related traffic offense"
  },
  "statuteUrl": {
   "url": "https://revisor.mo.gov/main/OneSection.aspx?section=302.440",
   "quote": "(L. 2014 S.B. 491, A.L. 2016 S.B. 657, A.L. 2026 H.B. 1740) ---- end of effective 28 Aug 2026 ----"
  },
  "dmvVendorListUrl": {
   "url": "https://www.modot.org/ignition-interlock",
   "quote": "LifeSafer | L250 | 800-765-1188; Smart Start | 20/20, 20/30, 20/35, 30/30 | 800-880-3394; Low Cost Interlock | LCI-777 | 800-352-4872; Alcohol Detection Systems (ADS) | Determinator 2 | 833-996-2560; Intoxalock | 1001A | 844-328-1967; RoadGuard | Interlock XT, Interlock 7000 | 800-332-6858"
  },
  "firstOffenseIid": {
   "url": "https://revisor.mo.gov/main/OneSection.aspx?section=302.440",
   "quote": "or any person who is found guilty of an intoxication-related traffic offense, as defined under section 577.001, in which the person's blood alcohol content was found to be fifteen-hundredths of one percent or more by weight of alcohol in such person's blood, or in which the person caused any property damage or personal injury shall not operate any motor vehicle unless that vehicle is equipped with a functioning, certified ignition interlock device"
  },
  "firstOffenseIidNote": {
   "url": "https://dor.mo.gov/driver-license/revocation-reinstatement/reinstatement-requirements.html",
   "quote": "if your driving record shows more than one alcohol- or drug-related enforcement contact, or for first time offenders, upon conviction, if BAC is at or greater than .150 or if there is personal injury or property damage"
  },
  "iidDurationFirst": {
   "url": "https://revisor.mo.gov/main/OneSection.aspx?section=302.440",
   "quote": "that the person must use for a period of not less than six months from the date of reinstatement of the person's driver's license."
  },
  "iidDurationRepeat": {
   "url": "https://dor.mo.gov/faq/driver-license/ignition-interlock-device.html",
   "quote": "NOTE: In addition to the IID requirements explained above, a court may impose other requirements, such as an IID period longer than six months."
  },
  "sr22Required": {
   "url": "https://dor.mo.gov/driver-license/revocation-reinstatement/reinstatement-requirements.html",
   "quote": "File and maintain proof of liability insurance (SR-22 form) for two years from the starting date of your suspension or revocation"
  },
  "sr22Years": {
   "url": "https://dor.mo.gov/faq/driver-license/administrative-alcohol.html",
   "quote": "You need to file the SR-22 form for two (2) years from the starting date of your suspension or revocation."
  },
  "sr22Note": {
   "url": "https://dor.mo.gov/driver-license/revocation-reinstatement/reinstatement-requirements.html",
   "quote": "File and maintain proof of liability insurance (SR-22 form) for two years from the starting date of your suspension or revocation"
  },
  "reinstatementFee": {
   "url": "https://dor.mo.gov/driver-license/revocation-reinstatement/reinstatement-requirements.html",
   "quote": "$45 reinstatement fee"
  },
  "approvedVendors": {
   "url": "https://www.modot.org/ignition-interlock",
   "quote": "LifeSafer | L250; Smart Start | 20/20, 20/30, 20/35, 30/30; Low Cost Interlock | LCI-777; Alcohol Detection Systems (ADS) | Determinator 2; Intoxalock | 1001A; RoadGuard | Interlock XT, Interlock 7000"
  },
  "costNotes": {
   "url": "https://dor.mo.gov/faq/driver-license/ignition-interlock-device.html",
   "quote": "Pay a $20 reinstatement fee. You may pay your reinstatement fee online as mydmv.mo.gov"
  },
  "costNotes_pricing": {
   "url": "https://www.modot.org/ignition-interlock",
   "quote": "MoDOT does not keep a pricing list. The costs vary among the ignition interlock companies. For pricing information contact each of the ignition interlock companies in your area."
  },
  "iidMonitoring": {
   "url": "https://dor.mo.gov/driver-license/revocation-reinstatement/reinstatement-requirements.html",
   "quote": "minimum period of six months from the reinstatement date. You will be monitored during the last three months"
  }
 },
 "approvedVendorNamesAsListed": [
  "LifeSafer",
  "Smart Start",
  "Low Cost Interlock",
  "Alcohol Detection Systems (ADS)",
  "Intoxalock",
  "RoadGuard"
 ],
 "license": "CC BY 4.0",
 "methodology": "https://wheelsback.com/methodology/",
 "page": "https://wheelsback.com/missouri/"
}