Virginia governor Bob McDonnell signed a law Tuesday which requires DUI offenders to have ignition interlock devices on their cars while driving.
The law affects anyone convicted of driving under the influence, including first-time offenders.
The ignition interlock devices will be installed and monitored at the expense of the offender.
The previous law only required the device when the offender's blood alcohol level was more than .15 or after a second or subsequent offense.
The legislation became effective July first.