Only 41% of Washington drivers comply with ignition interlock mandate after DUIs

(The Center Square) – Less than half of the drivers required to install ignition interlock devices in their vehicles did so between 2018 and 2025, despite $14.5 million in state spending to bolster compliance.

Washington state lawmakers allocated $400,000 in 2024 to the bipartisan Joint Legislative Audit and Review Committee to examine installation rates and issue recommendations to improve them. Staff returned on Wednesday with three after realizing that no one was responsible for tracking compliance.​

The JLARC performance audit released this month reviewed 66,000 drivers with IID requirements from January 2018 to Jun...