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Interlock companies

You can only use a company on your state's approved list. These are the companies on those lists, ordered by how many of the 44 state lists we've read include them.

Smart Start

SSI-20/3040 of 44 state lists
  • 144 Texas service centers
  • Fee schedule on file in New York (Apr 2025)
  • App Store 2.0 from 113 ratings
PASSED

Intoxalock

Intoxalock 1001A37 of 44 state lists
  • 532 Texas service centers
  • Fee schedule on file in New York (Feb 2021)
  • App Store 1.7 from 899 ratings

LifeSafer

LifeSafer L25034 of 44 state lists
  • 138 Texas service centers
  • Fee schedule on file in New York (Feb 2025)
no photopublished

Alcohol Detection Systems

Determinator28 of 44 state lists
  • 6 Texas service centers

RoadGuard

Dräger Interlock 7000 · formerly Dräger Interlock28 of 44 state lists
  • 73 Texas service centers
  • Fee schedule on file in New York (2021)
no photopublished

Low Cost Interlock

LCI-77719 of 44 state lists
  • 3 Texas service centers
  • App Store 1.4 from 11 ratings

Guardian

Guardian AMS 2500 (name from NM directory; site names no model)16 of 44 state lists
  • 10 Texas service centers
no photopublished

ALCOLOCK

ALCOLOCK GR (wireless)12 of 44 state lists
  • 2 Texas service centers
no photopublished

Sens-O-Lock

FR90007 of 44 state lists

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