District Court Probation
Director: Michael Mahoney
Interlock Devices & Manufacturers
Each ignition interlock device model listed below is certified to be used in the state of Washington. Information about certification standards is available by writing to the Impaired Driving Unit, Washington State Patrol, 811 E. Roanoke, Seattle WA 98102.
To locate an ignition interlock installer in your area, call one of the ignition interlock manufacturers listed below.
- Guardian Interlock Systems
125 Church Street- Suite 320
Marietta, GA 30060
- Draeger Safety Diagnostics Inc.
DBA AutoSafe LLC in State of Washington
4040 West Royal Lane – Suite 136
Irving TX 75063
- Smart Start Inc.
850 Plaza Drive
Irving, TX 75063
- LifeSafer of Washington
4290 Glendale Milford Rd.
Cincinnati, OH 45242
10520 Hickman Road – Suite F
Des Moines, IA 50325
Note: The Washington State Patrol does not endorse any manufacturers, dealers, or products. Their appearance on this page confirms only that the products have been certified by the Washington State Patrol and meet federal rules for breath alcohol ignition interlock devices.