What is the law in Virginia for first time convicted drunk drivers and ignition interlock devices?

In 2012, the state of Virginia passed a law that requires all DUI offenders, including first-time offenders, to put an ignition interlock Breathalyzer system in their vehicle at their expense. This law was passed because it was believed that all convicted drunk drivers having such devices in their cars would lead to fewer repeat offenses. 
Randall E. Appleton
Personal Injury & Wrongful Death Lawyer Serving Va Beach, Norfolk, Chesapeake & all of Virginia