{
 "slug": "texas",
 "importedOn": "2026-08-29",
 "verified": true,
 "agencyName": "Texas Department of Public Safety",
 "firstOffenseIidNote": "Threshold: alcohol concentration of 0.15 or more. Under Tex. Code Crim. Proc. art. 42A.408(b), for a DWI defendant placed on community supervision the court 'may' require an ignition interlock as a condition; under art. 42A.408(c) the court 'shall' require it if the trial showed an alcohol concentration of 0.15 or more, if the defendant is punished as a repeat offender under Penal Code § 49.09(a) or (b), or if the defendant has a prior conviction within 10 years (art. 42A.408(d)). Separately, under Tex. Transp. Code § 521.246(a)(2), a judge granting an occupational license to a person whose license was suspended after a DWI conviction shall restrict the person to an interlock-equipped vehicle, subject to waiver under § 521.246(b-1); art. 42A.408(e)-(e-1) also mandate the device for defendants under 21 and for deferred adjudication.",
 "sr22Note": "SR-22. Texas DPS states that after an adult DWI conviction a Financial Responsibility Insurance Certificate (SR-22) from an authorized insurance company is required and must be maintained for two years from the date of conviction.",
 "evidence": {
  "agencyName": {
   "url": "https://www.dps.texas.gov/section/driver-license/ignition-interlock-devices",
   "quote": "© 2026 Texas Department of Public Safety."
  },
  "statuteCitation": {
   "url": "https://tcss.legis.texas.gov/resources/TN/htm/TN.521.htm",
   "quote": "Sec. 521.246. IGNITION INTERLOCK DEVICE REQUIREMENT."
  },
  "statuteUrl": {
   "url": "https://tcss.legis.texas.gov/resources/TN/htm/TN.521.htm",
   "quote": "(a) Subject to Subsection (b-1), the judge shall restrict the person to the operation of a motor vehicle equipped with an ignition interlock device if:"
  },
  "dmvVendorListUrl": {
   "url": "https://www.dps.texas.gov/section/regulatory-services/ignition-interlock",
   "quote": "Regulatory Service Division staff approves ignition interlock devices, including the authorization of vendors to install, download, remove, repair, replace and make reports of all required data recorded by the device. [...] Approved Device list (PDF)"
  },
  "firstOffenseIid": {
   "url": "https://tcss.legis.texas.gov/resources/CR/htm/CR.42A.htm",
   "quote": "(b) The court may require as a condition of community supervision that a defendant placed on community supervision after conviction of an offense under Sections 49.04-49.08, Penal Code, have an ignition interlock device installed"
  },
  "firstOffenseIid_threshold": {
   "url": "https://tcss.legis.texas.gov/resources/CR/htm/CR.42A.htm",
   "quote": "(1) it is shown on the trial of the offense that an analysis of a specimen of the defendant's blood, breath, or urine showed an alcohol concentration level of 0.15 or more at the time the analysis was performed;"
  },
  "firstOffenseIid_shall": {
   "url": "https://tcss.legis.texas.gov/resources/CR/htm/CR.42A.htm",
   "quote": "(c) The court shall require as a condition of community supervision that a defendant described by Subsection (b) have an ignition interlock device installed"
  },
  "firstOffenseIidNote": {
   "url": "https://tcss.legis.texas.gov/resources/TN/htm/TN.521.htm",
   "quote": "(2) the person's license has been suspended, revoked, or canceled after a conviction for an offense under Sections 49.04-49.08, Penal Code. [...] (b-1) The court may waive the ignition interlock device requirement under Subsection (a)"
  },
  "iidDurationFirst": {
   "url": "https://tcss.legis.texas.gov/resources/CR/htm/CR.42A.htm",
   "quote": "order the device to remain installed on that vehicle for a period the length of which is not less than 50 percent of the supervision period."
  },
  "iidDurationFirst_occ": {
   "url": "https://tcss.legis.texas.gov/resources/TN/htm/TN.521.htm",
   "quote": "(d) The court shall order the ignition interlock device to remain installed for the duration of the period of suspension, unless the court finds:"
  },
  "iidDurationRepeat": {
   "url": "https://tcss.legis.texas.gov/resources/CR/htm/CR.42A.htm",
   "quote": "(3) the court determines under Subsection (d) that the defendant has one or more previous convictions under Sections 49.04-49.08, Penal Code."
  },
  "sr22Required": {
   "url": "https://www.dps.texas.gov/section/driver-license/alcohol-related-offenses",
   "quote": "Obtain a Financial Responsibility Insurance Certificate (SR-22) from an authorized insurance company (an SR-22 must be maintained for two years from the date of conviction.)"
  },
  "sr22Years": {
   "url": "https://www.dps.texas.gov/section/driver-license/alcohol-related-offenses",
   "quote": "an SR-22 must be maintained for two years from the date of conviction"
  },
  "reinstatementFee": {
   "url": "https://www.dps.texas.gov/section/driver-license/alcohol-related-offenses",
   "quote": "Serve a Driver license suspension for a period not to exceed two years and pay a $100 Reinstatement fee , in addition to paying any other outstanding fees;"
  },
  "approvedVendors": {
   "url": "https://www.dps.texas.gov/sites/default/files/documents/rsd/ignitioninterlock/documents/approvedigninterdevices.pdf",
   "quote": "APPROVED IGNITION INTERLOCK DEVICES Rev: December 2025 [...] Interlock Manufacturer Approved Models A&A Product Company FIT228-LC FIT229-LC AT230 Agent Monitoring LLC BRAC Audit Lock II Alcohol Analytics Systems AAS 2.0"
  },
  "approvedVendors_2": {
   "url": "https://www.dps.texas.gov/sites/default/files/documents/rsd/ignitioninterlock/documents/approvedigninterdevices.pdf",
   "quote": "Smart Alco Solutions LLC Alcobrake A-200 SSI1000 SSI 20/20 SSI 20/30 Smart Start, Inc."
  },
  "costNotes_1": {
   "url": "https://tcss.legis.texas.gov/resources/TN/htm/TN.521.htm",
   "quote": "On application by the person and payment of a fee of $10, the department shall issue a special restricted license that conspicuously indicates that the person is authorized to operate only a motor vehicle equipped with an ignition interlock device."
  },
  "costNotes_1_dps": {
   "url": "https://www.dps.texas.gov/section/driver-license/faq/section-18-interlock",
   "quote": "To obtain an interlock license, you may pay the $10 interlock license fee online on the License Eligibility page"
  },
  "costNotes_3": {
   "url": "https://tcss.legis.texas.gov/resources/CR/htm/CR.42A.htm",
   "quote": "reduce the costs to the defendant by ordering a waiver of the installation charge for the ignition interlock device and a 50 percent reduction of the monthly device monitoring fee"
  },
  "costNotes_4": {
   "url": "https://tcss.legis.texas.gov/resources/TN/htm/TN.521.htm",
   "quote": "If the court determines that the person is unable to pay for the device, the court may impose a reasonable payment schedule for a term not to exceed twice the period of the court's order."
  },
  "costNotes_5": {
   "url": "https://tcss.legis.texas.gov/resources/TN/htm/TN.521.htm",
   "quote": "the office may collect from the person a reasonable administrative fee of not less than $25 and not more than $60 per month."
  },
  "installers": {
   "url": "https://www.dps.texas.gov/section/driver-license/ignition-interlock-devices",
   "quote": "All court-ordered installations of ignition interlock devices must be performed by Department-certified service centers."
  }
 },
 "approvedVendorNamesAsListed": [
  "A&A Product Company",
  "Agent Monitoring LLC",
  "Alcohol Analytics Systems",
  "Alcohol Countermeasures Systems",
  "Alcohol Detection Systems",
  "AlcoPatrol",
  "America’s Alcohol Testing Inc.",
  "Autosense International, Inc",
  "B.E.S.T. Labs, Inc.",
  "Blow and Drive Interlock",
  "Clean Start Systems",
  "Dräger US Interlock LLC",
  "Guardian Interlock",
  "Instant Interlock",
  "Intoxalock",
  "LifeSafer",
  "Low Cost Interlock",
  "Monitech Ignition Interlock Systems",
  "Simple Interlock",
  "Smart Alco Solutions LLC",
  "Smart Start, Inc."
 ],
 "license": "CC BY 4.0",
 "methodology": "https://wheelsback.com/methodology/",
 "page": "https://wheelsback.com/texas/"
}