Senate Bill 1046 would extend a pilot program that requires most convicted DUI drivers to install ignition interlock devices — also referred to as IIDs — that would prevent them from operating a motor vehicle while under the influence.

Under the law, the offender be  able obtain a restricted driver’s license, have their license reissued, or get their motor vehicle privileges reinstated on the condition that they install an IID in their vehicle for a prescribed amount of time.

The bill extends the pilot program in four California counties — Los Angeles, Alameda, Sacramento and Tulare counties — before it expands to the the entire state on Jan. 1, 2019.